*** Running test-arglist

===== CASE: -n -c json write () =====


  json write ()
             ^
[ -c flag ]:1: Empty arg list not allowed

===== CASE: -n -c json write (42, indent=1) =====


(command.Simple
  blame_tok: <Id.Lit_Chars json>
  more_env: []
  words: [{<Id.Lit_Chars json>} {<Id.Lit_Chars write>}]
  typed_args: 
    (ArgList
      left: <Id.Op_LParen "(">
      pos_args: [(expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))]
      named_args: [
        (NamedArg
          name: <Id.Expr_Name indent>
          value: (expr.Const c:<Id.Expr_DecInt 1> val:(value.Int i:1))
        )
      ]
      right: <Id.Op_RParen ")">
    )
  is_last_cmd: F
)

===== CASE: -n -c json write (42; indent=2) =====


(command.Simple
  blame_tok: <Id.Lit_Chars json>
  more_env: []
  words: [{<Id.Lit_Chars json>} {<Id.Lit_Chars write>}]
  typed_args: 
    (ArgList
      left: <Id.Op_LParen "(">
      pos_args: [(expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))]
      semi_tok: <Id.Op_Semi ";">
      named_args: [
        (NamedArg
          name: <Id.Expr_Name indent>
          value: (expr.Const c:<Id.Expr_DecInt 2> val:(value.Int i:2))
        )
      ]
      right: <Id.Op_RParen ")">
    )
  is_last_cmd: F
)

===== CASE: -n -c = toJson(42, indent=1) =====


(command.Expr
  keyword: <Id.Lit_Equals "=">
  e: 
    (expr.FuncCall
      func: (expr.Var left:<Id.Expr_Name toJson> name:toJson)
      args: 
        (ArgList
          left: <Id.Op_LParen "(">
          pos_args: [(expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))]
          named_args: [
            (NamedArg
              name: <Id.Expr_Name indent>
              value: (expr.Const c:<Id.Expr_DecInt 1> val:(value.Int i:1))
            )
          ]
          right: <Id.Op_RParen ")">
        )
    )
)

===== CASE: -n -c = toJson(42; indent=2) =====


(command.Expr
  keyword: <Id.Lit_Equals "=">
  e: 
    (expr.FuncCall
      func: (expr.Var left:<Id.Expr_Name toJson> name:toJson)
      args: 
        (ArgList
          left: <Id.Op_LParen "(">
          pos_args: [(expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))]
          semi_tok: <Id.Op_Semi ";">
          named_args: [
            (NamedArg
              name: <Id.Expr_Name indent>
              value: (expr.Const c:<Id.Expr_DecInt 2> val:(value.Int i:2))
            )
          ]
          right: <Id.Op_RParen ")">
        )
    )
)

===== CASE: -n -c p (; n=true) =====


(command.Simple
  blame_tok: <Id.Lit_Chars p>
  more_env: []
  words: [{<Id.Lit_Chars p>}]
  typed_args: 
    (ArgList
      left: <Id.Op_LParen "(">
      pos_args: []
      semi_tok: <Id.Op_Semi ";">
      named_args: [
        (NamedArg
          name: <Id.Expr_Name n>
          value: (expr.Const c:<Id.Expr_True "true"> val:(value.Bool b:T))
        )
      ]
      right: <Id.Op_RParen ")">
    )
  is_last_cmd: F
)

===== CASE: -n -c = f(; n=true) =====


(command.Expr
  keyword: <Id.Lit_Equals "=">
  e: 
    (expr.FuncCall
      func: (expr.Var left:<Id.Expr_Name f> name:f)
      args: 
        (ArgList
          left: <Id.Op_LParen "(">
          pos_args: []
          semi_tok: <Id.Op_Semi ";">
          named_args: [
            (NamedArg
              name: <Id.Expr_Name n>
              value: (expr.Const c:<Id.Expr_True "true"> val:(value.Bool b:T))
            )
          ]
          right: <Id.Op_RParen ")">
        )
    )
)

===== CASE: -n -c p (;) =====


(command.Simple
  blame_tok: <Id.Lit_Chars p>
  more_env: []
  words: [{<Id.Lit_Chars p>}]
  typed_args: 
    (ArgList
      left: <Id.Op_LParen "(">
      pos_args: []
      semi_tok: <Id.Op_Semi ";">
      named_args: []
      right: <Id.Op_RParen ")">
    )
  is_last_cmd: F
)

===== CASE: -n -c = f(;) =====


(command.Expr
  keyword: <Id.Lit_Equals "=">
  e: 
    (expr.FuncCall
      func: (expr.Var left:<Id.Expr_Name f> name:f)
      args: 
        (ArgList
          left: <Id.Op_LParen "(">
          pos_args: []
          semi_tok: <Id.Op_Semi ";">
          named_args: []
          right: <Id.Op_RParen ")">
        )
    )
)

===== CASE: -n -c p (42;) =====


(command.Simple
  blame_tok: <Id.Lit_Chars p>
  more_env: []
  words: [{<Id.Lit_Chars p>}]
  typed_args: 
    (ArgList
      left: <Id.Op_LParen "(">
      pos_args: [(expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))]
      semi_tok: <Id.Op_Semi ";">
      named_args: []
      right: <Id.Op_RParen ")">
    )
  is_last_cmd: F
)

===== CASE: -n -c = f(42;) =====


(command.Expr
  keyword: <Id.Lit_Equals "=">
  e: 
    (expr.FuncCall
      func: (expr.Var left:<Id.Expr_Name f> name:f)
      args: 
        (ArgList
          left: <Id.Op_LParen "(">
          pos_args: [(expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))]
          semi_tok: <Id.Op_Semi ";">
          named_args: []
          right: <Id.Op_RParen ")">
        )
    )
)

===== CASE: -n -c = f(42; n=true; block) =====


  = f(42; n=true; block)
                ^
[ -c flag ]:1: Syntax error in expression (near Id.Op_Semi)

===== CASE: -n -c = f(42; ; block) =====


  = f(42; ; block)
          ^
[ -c flag ]:1: Syntax error in expression (near Id.Op_Semi)

===== CASE: -n -c p (42; n=true; block) =====


(command.Simple
  blame_tok: <Id.Lit_Chars p>
  more_env: []
  words: [{<Id.Lit_Chars p>}]
  typed_args: 
    (ArgList
      left: <Id.Op_LParen "(">
      pos_args: [(expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))]
      semi_tok: <Id.Op_Semi ";">
      named_args: [
        (NamedArg
          name: <Id.Expr_Name n>
          value: (expr.Const c:<Id.Expr_True "true"> val:(value.Bool b:T))
        )
      ]
      semi_tok2: <Id.Op_Semi ";">
      block_expr: (expr.Var left:<Id.Expr_Name block> name:block)
      right: <Id.Op_RParen ")">
    )
  is_last_cmd: F
)

===== CASE: -n -c p (42; ; block) =====


(command.Simple
  blame_tok: <Id.Lit_Chars p>
  more_env: []
  words: [{<Id.Lit_Chars p>}]
  typed_args: 
    (ArgList
      left: <Id.Op_LParen "(">
      pos_args: [(expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))]
      semi_tok: <Id.Op_Semi ";">
      named_args: []
      semi_tok2: <Id.Op_Semi ";">
      block_expr: (expr.Var left:<Id.Expr_Name block> name:block)
      right: <Id.Op_RParen ")">
    )
  is_last_cmd: F
)

===== CASE: -n -c p (42; n=42; bad=3) =====


  p (42; n=42; bad=3)
               ^~~
[ -c flag ]:1: Invalid block expression argument

===== CASE: -n -c p (42; n=42; ...bad) =====


  p (42; n=42; ...bad)
               ^~~
[ -c flag ]:1: Invalid block expression argument

===== CASE: -n -c = f(; 42) =====


  = f(; 42)
        ^~
[ -c flag ]:1: Positional arg can't appear in group of named args

===== CASE: -n -c = f(; name) =====


  = f(; name)
        ^~~~
[ -c flag ]:1: Positional arg can't appear in group of named args

===== CASE: -n -c = f(; x for x in y) =====


  = f(; x for x in y)
        ^
[ -c flag ]:1: Positional arg can't appear in group of named args
OK  test-arglist
*** Running test-blocks

===== CASE: -n -c >out { echo hi } =====


  >out { echo hi }
       ^
[ -c flag ]:1: Unexpected typed args

===== CASE: -n -c a=1 b=2 { echo hi } =====


  a=1 b=2 { echo hi }
          ^
[ -c flag ]:1: Unexpected typed args

===== CASE: -n -c break { echo hi } =====


  break { echo hi }
        ^
[ -c flag ]:1: Unexpected typed args

===== CASE: -n -c cd / { echo hi } cd / =====


  cd / { echo hi } cd /
                   ^~
[ -c flag ]:1: Invalid word while parsing command line (Id.Word_Compound)
OK  test-blocks
*** Running test-bug-1118

===== CASE: -n -c 
  var snippets = [{status: 42}]
  for snippet in (snippets) {
    if (snippet["status"] === 0) {
      echo hi
    }

    # The $ causes a weird error
    if ($snippet["status"] === 0) {
      echo hi
    }
  }
   =====


      if ($snippet["status"] === 0) {
          ^~~~~~~~
[ -c flag ]:9: In expressions, remove $ and use `snippet`, or sometimes "$snippet"

===== CASE: -n -c 
  var content = [ 1, 2, 4 ]
  var count = 0

  # The $ causes a weird error
  while (count < $len(content)) {
    setvar count += 1
  }
   =====


    while (count < $len(content)) {
                   ^~~~
[ -c flag ]:6: In expressions, remove $ and use `len`, or sometimes "$len"
OK  test-bug-1118
*** Running test-bug-1826

===== CASE: -n -c echo b'\xff' =====


  echo b'\xff'
         ^
[ -c flag ]:1: Invalid char escape in C-style string literal (OILS-ERR-11)

===== CASE: -n -c var s = b'\xff' =====


  var s = b'\xff'
            ^
[ -c flag ]:1: Invalid char escape in C-style string literal (OILS-ERR-11)
[echo b'\]

===== CASE: -n -c echo b'\ =====


  echo b'\
         ^
[ -c flag ]:1: Invalid char escape in C-style string literal (OILS-ERR-11)
[var s = b'\]

===== CASE: -n -c var s = b'\ =====


  var s = b'\
            ^
[ -c flag ]:1: Invalid char escape in C-style string literal (OILS-ERR-11)
[var s = $'\]

===== CASE: -n -c var s = $'\ =====


  var s = $'\
            ^
[ -c flag ]:1: Invalid char escape in C-style string literal (OILS-ERR-11)
OK  test-bug-1826
*** Running test-bug-1850

===== CASE: -n -c pp test_ (42); pp line (43) =====


(command.CommandList
  children: [
    (command.Sentence
      child: 
        (command.Simple
          blame_tok: <Id.Lit_Chars pp>
          more_env: []
          words: [{<Id.Lit_Chars pp>} {<Id.Lit_Chars test_>}]
          typed_args: 
            (ArgList
              left: <Id.Op_LParen "(">
              pos_args: [(expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))]
              named_args: []
              right: <Id.Op_RParen ")">
            )
          is_last_cmd: F
        )
      terminator: <Id.Op_Semi ";">
    )
    (command.Simple
      blame_tok: <Id.Lit_Chars pp>
      more_env: []
      words: [{<Id.Lit_Chars pp>} {<Id.Lit_Chars line>}]
      typed_args: 
        (ArgList
          left: <Id.Op_LParen "(">
          pos_args: [(expr.Const c:<Id.Expr_DecInt 43> val:(value.Int i:43))]
          named_args: []
          right: <Id.Op_RParen ")">
        )
      is_last_cmd: F
    )
  ]
)

===== CASE: -n -c pp test_ (42) extra =====


  pp test_ (42) extra
                ^~~~~
[ -c flag ]:1: Invalid word while parsing command line (Id.Word_Compound)

===== CASE: -n -c pp test_ (42), echo =====


  pp test_ (42), echo
               ^
[ -c flag ]:1: Invalid word while parsing command line (Id.Word_Compound)

===== CASE: -n -c pp test_ @(echo), echo =====


  pp test_ @(echo), echo
                  ^
[ -c flag ]:1: Unexpected token after @()

===== CASE: -n -c pp test_ (42) =====


(command.Simple
  blame_tok: <Id.Lit_Chars pp>
  more_env: []
  words: [{<Id.Lit_Chars pp>} {<Id.Lit_Chars test_>}]
  typed_args: 
    (ArgList
      left: <Id.Op_LParen "(">
      pos_args: [(expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))]
      named_args: []
      right: <Id.Op_RParen ")">
    )
  is_last_cmd: F
)

===== CASE: -n -c pp test_ (42)  =====


(command.Simple
  blame_tok: <Id.Lit_Chars pp>
  more_env: []
  words: [{<Id.Lit_Chars pp>} {<Id.Lit_Chars test_>}]
  typed_args: 
    (ArgList
      left: <Id.Op_LParen "(">
      pos_args: [(expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))]
      named_args: []
      right: <Id.Op_RParen ")">
    )
  is_last_cmd: F
)

===== CASE: -n -c pp test_ (42); =====


(command.Sentence
  child: 
    (command.Simple
      blame_tok: <Id.Lit_Chars pp>
      more_env: []
      words: [{<Id.Lit_Chars pp>} {<Id.Lit_Chars test_>}]
      typed_args: 
        (ArgList
          left: <Id.Op_LParen "(">
          pos_args: [(expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))]
          named_args: []
          right: <Id.Op_RParen ")">
        )
      is_last_cmd: F
    )
  terminator: <Id.Op_Semi ";">
)

===== CASE: -n -c pp test_ (42) { echo hi } =====


(command.Simple
  blame_tok: <Id.Lit_Chars pp>
  more_env: []
  words: [{<Id.Lit_Chars pp>} {<Id.Lit_Chars test_>}]
  typed_args: 
    (ArgList
      left: <Id.Op_LParen "(">
      pos_args: [(expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))]
      named_args: []
      right: <Id.Op_RParen ")">
    )
  block: 
    (LiteralBlock
      brace_group: 
        (BraceGroup
          left: <Id.Lit_LBrace "{">
          children: [
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars hi>}]
              is_last_cmd: F
            )
          ]
          right: <Id.Lit_RBrace "}">
        )
      lines: [(SourceLine line_num:1 content:"pp test_ (42) { echo hi }" src:(source__CFlag))]
    )
  is_last_cmd: F
)

===== CASE: -n -c pp test_ (42), pp line (43) =====


  pp test_ (42), pp line (43)
               ^
[ -c flag ]:1: Invalid word while parsing command line (Id.Word_Compound)
OK  test-bug-1850
*** Running test-bug-1850-more

===== CASE: -n -c assert (42)extra =====


  assert (42)extra
             ^~~~~
[ -c flag ]:1: Invalid word while parsing command line (Id.Word_Compound)

===== CASE: -n -c assert (42) extra =====


  assert (42) extra
              ^~~~~
[ -c flag ]:1: Invalid word while parsing command line (Id.Word_Compound)

===== CASE: -n -c assert [42]extra =====


  assert [42]extra
             ^~~~~
[ -c flag ]:1: Invalid word while parsing command line (Id.Word_Compound)

===== CASE: -n -c assert [42] extra =====


  assert [42] extra
              ^~~~~
[ -c flag ]:1: Invalid word while parsing command line (Id.Word_Compound)
OK  test-bug-1850-more
*** Running test-bug_1825_backslashes

===== CASE: -n -c echo $'trailing\
' =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [
    {<Id.Lit_Chars echo>}
    {
      (SingleQuoted
        left: <Id.Left_DollarSingleQuote "$'">
        sval: "trailing\\\n"
        right: <Id.Right_SingleQuote "'">
      )
    }
  ]
  is_last_cmd: F
)

===== CASE: -n -c echo $'trailing\\
' =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [
    {<Id.Lit_Chars echo>}
    {
      (SingleQuoted
        left: <Id.Left_DollarSingleQuote "$'">
        sval: "trailing\\\n"
        right: <Id.Right_SingleQuote "'">
      )
    }
  ]
  is_last_cmd: F
)

===== CASE: -n -c echo $'trailing\
' =====


  echo $'trailing\
                 ^~
[ -c flag ]:1: Invalid char escape in C-style string literal (OILS-ERR-11)

===== CASE: -n -c setvar x = $'trailing\
' =====


  setvar x = $'trailing\
                       ^~
[ -c flag ]:1: Invalid char escape in C-style string literal (OILS-ERR-11)
OK  test-bug_1825_backslashes
*** Running test-command-simple-more

===== CASE: -n -c foo=1 =====


(command.ShAssignment
  left: <Id.Lit_VarLike "foo=">
  pairs: [
    (AssignPair
      left: <Id.Lit_VarLike "foo=">
      lhs: (sh_lhs.Name left:<Id.Lit_VarLike "foo="> name:foo)
      op: assign_op.Equal
      rhs: {<Id.Lit_Chars 1>}
    )
  ]
)

===== CASE: -n -c foo=1 >out (42) =====


  foo=1 >out (42)
             ^
[ -c flag ]:1: Unexpected typed args

===== CASE: -n -c foo=1 (42) =====


  foo=1 (42)
        ^
[ -c flag ]:1: Unexpected typed args

===== CASE: -n -c foo=1 cmd (42) =====


(command.Simple
  blame_tok: <Id.Lit_Chars cmd>
  more_env: [(EnvPair left:<Id.Lit_VarLike "foo="> name:foo val:{<Id.Lit_Chars 1>})]
  words: [{<Id.Lit_Chars cmd>}]
  typed_args: 
    (ArgList
      left: <Id.Op_LParen "(">
      pos_args: [(expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))]
      named_args: []
      right: <Id.Op_RParen ")">
    )
  is_last_cmd: F
)

===== CASE: -n -c foo=1 cmd >out (42) =====


(command.Redirect
  child: 
    (command.Simple
      blame_tok: <Id.Lit_Chars cmd>
      more_env: [(EnvPair left:<Id.Lit_VarLike "foo="> name:foo val:{<Id.Lit_Chars 1>})]
      words: [{<Id.Lit_Chars cmd>}]
      typed_args: 
        (ArgList
          left: <Id.Op_LParen "(">
          pos_args: [(expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))]
          named_args: []
          right: <Id.Op_RParen ")">
        )
      is_last_cmd: F
    )
  redirects: [(Redir op:<Id.Redir_Great ">"> loc:(redir_loc.Fd fd:1) arg:{<Id.Lit_Chars out>})]
)
OK  test-command-simple-more
*** Running test-destructure

===== CASE: -n -c 
  func f() {
    const x, y = 3, 4

    #setvar x = 5

    setvar y = 6
  } =====


      const x, y = 3, 4
      ^~~~~
[ -c flag ]:3: const can't be inside proc or func.  Use var instead.

===== CASE: -n -c 
  func f() {
    var x, y = 3, 4

    var y = 6
  } =====


      var y = 6
          ^
[ -c flag ]:5: 'y' was already declared

===== CASE: -n -c 
  func f() {
    var x, y = 3, 4

    const y = 6
  } =====


      const y = 6
      ^~~~~
[ -c flag ]:5: const can't be inside proc or func.  Use var instead.
OK  test-destructure
*** Running test-eggex

===== CASE: -n -c = /%start dot %end \n \u{ff}/ =====


(command.Expr
  keyword: <Id.Lit_Equals "=">
  e: 
    (Eggex
      left: <Id.Arith_Slash />
      regex: 
        (re.Seq
          children: [
            (re.Primitive blame_tok:<Id.Expr_Symbol "%start"> id:Id.Eggex_Start)
            (re.Primitive blame_tok:<Id.Expr_Name dot> id:Id.Eggex_Dot)
            (re.Primitive blame_tok:<Id.Expr_Symbol "%end"> id:Id.Eggex_End)
            (re.LiteralChars blame_tok:<Id.Char_OneChar "\\n"> s:"\n")
            (re.LiteralChars blame_tok:<Id.Char_UBraced "\\u{ff}"> s:"ÿ")
          ]
        )
      flags: []
      canonical_flags: ""
    )
)

===== CASE: -n -c = /%star dot %end \n/ =====


  = /%star dot %end \n/
     ^~~~~
[ -c flag ]:1: Unexpected token '%star' in regex

===== CASE: -n -c = /%start do %end \n/ =====


  = /%start do %end \n/
            ^~
[ -c flag ]:1: 'do' isn't a character class

===== CASE: -n -c = /%start dot %end \z/ =====


  = /%start dot %end \z/
                     ^
[ -c flag ]:1: Unexpected token in expression mode

===== CASE: -n -c = /%start dot %end \n \u{}/ =====


  = /%start dot %end \n \u{}/
                        ^
[ -c flag ]:1: Unexpected token in expression mode

===== CASE: -n -c = /['a'-'z']/ =====


(command.Expr
  keyword: <Id.Lit_Equals "=">
  e: 
    (Eggex
      left: <Id.Arith_Slash />
      regex: 
        (re.CharClassLiteral
          negated: F
          terms: [
            (CharRange
              start: (CharCode blame_tok:<Id.Left_SingleQuote "'"> i:97 u_braced:F)
              end: (CharCode blame_tok:<Id.Left_SingleQuote "'"> i:122 u_braced:F)
            )
          ]
        )
      flags: []
      canonical_flags: ""
    )
)

===== CASE: -n -c = /['a'-'']/ =====


  = /['a'-'']/
          ^
[ -c flag ]:1: Quoted range char can't be empty

===== CASE: -n -c = /['a'-'zz']/ =====


  = /['a'-'zz']/
          ^
[ -c flag ]:1: Range start/end shouldn't have more than one character

===== CASE: -n -c = /dot{N *} / =====


  = /dot{N *} /
         ^
[ -c flag ]:1: Perl-style repetition isn't implemented with libc

===== CASE: -n -c = /dot{zzz *} / =====


  = /dot{zzz *} /
         ^~~
[ -c flag ]:1: Perl-style repetition isn't implemented with libc

===== CASE: -n -c = /dot{*} / =====


  = /dot{*} /
         ^
[ -c flag ]:1: Perl-style repetition isn't implemented with libc
OK  test-eggex
*** Running test-eggex-capture

===== CASE: -n -c = / d+ / =====


(command.Expr
  keyword: <Id.Lit_Equals "=">
  e: 
    (Eggex
      left: <Id.Arith_Slash />
      regex: (re.Repeat child:(PerlClass name:d) op:<Id.Arith_Plus "+">)
      flags: []
      canonical_flags: ""
    )
)

===== CASE: -n -c = / < capture d+ as date > / =====


(command.Expr
  keyword: <Id.Lit_Equals "=">
  e: 
    (Eggex
      left: <Id.Arith_Slash />
      regex: 
        (re.Capture
          child: (re.Repeat child:(PerlClass name:d) op:<Id.Arith_Plus "+">)
          name: <Id.Expr_Name date>
        )
      flags: []
      canonical_flags: ""
    )
)

===== CASE: -n -c = / < capture d+ as date: Int > / =====


(command.Expr
  keyword: <Id.Lit_Equals "=">
  e: 
    (Eggex
      left: <Id.Arith_Slash />
      regex: 
        (re.Capture
          child: (re.Repeat child:(PerlClass name:d) op:<Id.Arith_Plus "+">)
          name: <Id.Expr_Name date>
          func_name: <Id.Expr_Name Int>
        )
      flags: []
      canonical_flags: ""
    )
)

===== CASE: -n -c var capture = 42 =====


  var capture = 42
      ^~~~~~~
[ -c flag ]:1: Syntax error in expression (near Id.Expr_Capture)

===== CASE: -n -c var as = 42 =====


  var as = 42
      ^~
[ -c flag ]:1: Syntax error in expression (near Id.Expr_As)
OK  test-eggex-capture
*** Running test-eggex-flags

===== CASE: -n -c = / d+ ; reg_icase / =====


(command.Expr
  keyword: <Id.Lit_Equals "=">
  e: 
    (Eggex
      left: <Id.Arith_Slash />
      regex: (re.Repeat child:(PerlClass name:d) op:<Id.Arith_Plus "+">)
      flags: [(EggexFlag negated:F flag:<Id.Expr_Name reg_icase>)]
      canonical_flags: i
    )
)

===== CASE: -n -c = / d+ ; i / =====


(command.Expr
  keyword: <Id.Lit_Equals "=">
  e: 
    (Eggex
      left: <Id.Arith_Slash />
      regex: (re.Repeat child:(PerlClass name:d) op:<Id.Arith_Plus "+">)
      flags: [(EggexFlag negated:F flag:<Id.Expr_Name i>)]
      canonical_flags: i
    )
)

===== CASE: -n -c = / d+ ; !i / =====


  = / d+ ; !i /
            ^
[ -c flag ]:1: Flag can't be negated

===== CASE: -n -c = / d+ ; reg_oops / =====


  = / d+ ; reg_oops /
           ^~~~~~~~
[ -c flag ]:1: Invalid regex flag 'reg_oops'

===== CASE: -n -c = / d+ ; !i; PCRE / =====


(command.Expr
  keyword: <Id.Lit_Equals "=">
  e: 
    (Eggex
      left: <Id.Arith_Slash />
      regex: (re.Repeat child:(PerlClass name:d) op:<Id.Arith_Plus "+">)
      flags: [(EggexFlag negated:T flag:<Id.Expr_Name i>)]
      trans_pref: <Id.Expr_Name PCRE>
    )
)

===== CASE: -n -c = / d+ ; reg_oops; PCRE / =====


(command.Expr
  keyword: <Id.Lit_Equals "=">
  e: 
    (Eggex
      left: <Id.Arith_Slash />
      regex: (re.Repeat child:(PerlClass name:d) op:<Id.Arith_Plus "+">)
      flags: [(EggexFlag negated:F flag:<Id.Expr_Name reg_oops>)]
      trans_pref: <Id.Expr_Name PCRE>
    )
)

===== CASE: -n -c = / d+ ; i reg_newline ; ERE / =====


(command.Expr
  keyword: <Id.Lit_Equals "=">
  e: 
    (Eggex
      left: <Id.Arith_Slash />
      regex: (re.Repeat child:(PerlClass name:d) op:<Id.Arith_Plus "+">)
      flags: [
        (EggexFlag negated:F flag:<Id.Expr_Name i>)
        (EggexFlag negated:F flag:<Id.Expr_Name reg_newline>)
      ]
      trans_pref: <Id.Expr_Name ERE>
      canonical_flags: in
    )
)

===== CASE: -n -c = / d+ ; ; ERE / =====


(command.Expr
  keyword: <Id.Lit_Equals "=">
  e: 
    (Eggex
      left: <Id.Arith_Slash />
      regex: (re.Repeat child:(PerlClass name:d) op:<Id.Arith_Plus "+">)
      flags: []
      trans_pref: <Id.Expr_Name ERE>
      canonical_flags: ""
    )
)

===== CASE: -n -c = / d+ ; / =====


(command.Expr
  keyword: <Id.Lit_Equals "=">
  e: 
    (Eggex
      left: <Id.Arith_Slash />
      regex: (re.Repeat child:(PerlClass name:d) op:<Id.Arith_Plus "+">)
      flags: []
      canonical_flags: ""
    )
)

===== CASE: -n -c = / d+ ; ; / =====


  = / d+ ; ; /
             ^
[ -c flag ]:1: Syntax error in expression (near Id.Arith_Slash)

===== CASE: -n -c = / d+ ; ; ; / =====


  = / d+ ; ; ; /
             ^
[ -c flag ]:1: Syntax error in expression (near Id.Op_Semi)
OK  test-eggex-flags
*** Running test-fat-arrow

===== CASE: -n -c var x = s => trim() =====


(command.VarDecl
  keyword: <Id.KW_Var var>
  lhs: [(NameType left:<Id.Expr_Name x> name:x)]
  rhs: 
    (expr.FuncCall
      func: 
        (Attribute
          obj: (expr.Var left:<Id.Expr_Name s> name:s)
          op: <Id.Expr_RDArrow "=>">
          attr: <Id.Expr_Name trim>
          attr_name: trim
          ctx: expr_context.Store
        )
      args: (ArgList left:<Id.Op_LParen "("> pos_args:[] named_args:[] right:<Id.Op_RParen ")">)
    )
)

===== CASE: -n -c func f(x Int) => List[Int] { echo hi } =====


(Func
  keyword: <Id.KW_Func func>
  name: <Id.Expr_Name f>
  positional: 
    (ParamGroup
      params: [
        (Param
          blame_tok: <Id.Expr_Name x>
          name: x
          type: (TypeExpr tok:<Id.Expr_Name Int> name:Int)
        )
      ]
    )
  body: 
    (BraceGroup
      left: <Id.Lit_LBrace "{">
      children: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars hi>}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
)
OK  test-fat-arrow
*** Running test-float-literals

===== CASE: -n -c = 42.0 =====


(command.Expr
  keyword: <Id.Lit_Equals "=">
  e: (expr.Const c:<Id.Expr_Float 42.0> val:(value.Float f:42.0))
)

===== CASE: -n -c = 42_0.0 =====


(command.Expr
  keyword: <Id.Lit_Equals "=">
  e: (expr.Const c:<Id.Expr_Float 42_0.0> val:(value.Float f:420.0))
)

===== CASE: -n -c = 42_.0 =====


  = 42_.0
        ^
[ -c flag ]:1: Syntax error in expression (near Id.Expr_DecInt)

===== CASE: -n -c = 42. =====


  = 42.
       ^
[ -c flag ]:1: Syntax error in expression (near Id.Eof_Real)

===== CASE: -n -c = .333 =====


  = .333
    ^
[ -c flag ]:1: Syntax error in expression (near Id.Expr_Dot)

===== CASE: -n -c = _42.0 =====


  = _42.0
        ^
[ -c flag ]:1: Syntax error in expression (near Id.Expr_DecInt)
OK  test-float-literals
*** Running test-for

===== CASE: -n -c 
  for x in <> {
    echo $x
  }
   =====


    for x in <> {
             ^~
[ -c flag ]:2: Reserved syntax

===== CASE: -n -c 
  for x in <>
  {
    echo $x
  }
   =====


    for x in <>
             ^~
[ -c flag ]:2: Reserved syntax

===== CASE: -n -c 
  for x in < {
    echo $x
  }
   =====


    for x in < {
             ^
[ -c flag ]:2: Reserved syntax

===== CASE: -n -c 
  for x in < > {
    echo $x
  }
   =====


    for x in < > {
             ^
[ -c flag ]:2: Reserved syntax
OK  test-for
*** Running test-for-parse-bare-word

===== CASE: -n -c 
  for x in bare {
    echo $x
  }
   =====


    for x in bare {
             ^~~~
[ -c flag ]:2: Surround this word with either parens or quotes (parse_bare_word)

===== CASE: -n -c 
  for x in a b {
    echo $x
  }
   =====


(command.ForEach
  keyword: <Id.KW_For for>
  iter_names: [x]
  iterable: (for_iter.Words words:[{<Id.Lit_Chars a>} {<Id.Lit_Chars b>}])
  body: 
    (BraceGroup
      left: <Id.Lit_LBrace "{">
      children: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {($ x)}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
)

===== CASE: -n -c 
  for x in *.py {
    echo $x
  }
   =====


(command.ForEach
  keyword: <Id.KW_For for>
  iter_names: [x]
  iterable: (for_iter.Words words:[{<Id.Lit_Star "*"> <Id.Lit_Chars .py>}])
  body: 
    (BraceGroup
      left: <Id.Lit_LBrace "{">
      children: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {($ x)}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
)

===== CASE: -n -c 
  for x in "quoted" {
    echo $x
  }
   =====


(command.ForEach
  keyword: <Id.KW_For for>
  iter_names: [x]
  iterable: (for_iter.Words words:[{(DQ <Id.Lit_Chars quoted>)}])
  body: 
    (BraceGroup
      left: <Id.Lit_LBrace "{">
      children: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {($ x)}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
)
OK  test-for-parse-bare-word
*** Running test-func-def

===== CASE: -n -c func f(p) { var p = foo } =====


  func f(p) { var p = foo }
                  ^
[ -c flag ]:1: 'p' was already declared

===== CASE: -n -c func f(p; n) { var n = foo } =====


  func f(p; n) { var n = foo }
                     ^
[ -c flag ]:1: 'n' was already declared
OK  test-func-def
*** Running test-func-sig

===== CASE: -n -c func f { echo hi } =====


  func f { echo hi }
         ^
[ -c flag ]:1: Syntax error in expression (near Id.Op_LBrace)

===== CASE: -n -c func f () { echo hi } =====


(Func
  keyword: <Id.KW_Func func>
  name: <Id.Expr_Name f>
  body: 
    (BraceGroup
      left: <Id.Lit_LBrace "{">
      children: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars hi>}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
)

===== CASE: -n -c func f (a List[Int] = [3,4]) { echo hi } =====


(Func
  keyword: <Id.KW_Func func>
  name: <Id.Expr_Name f>
  positional: 
    (ParamGroup
      params: [
        (Param
          blame_tok: <Id.Expr_Name a>
          name: a
          type: 
            (TypeExpr
              tok: <Id.Expr_Name List>
              name: List
              params: [(TypeExpr tok:<Id.Expr_Name Int> name:Int)]
            )
          default_val: 
            (expr.List
              left: <Id.Op_LBracket "[">
              elts: [
                (expr.Const c:<Id.Expr_DecInt 3> val:(value.Int i:3))
                (expr.Const c:<Id.Expr_DecInt 4> val:(value.Int i:4))
              ]
              ctx: expr_context.Store
            )
        )
      ]
    )
  body: 
    (BraceGroup
      left: <Id.Lit_LBrace "{">
      children: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars hi>}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
)

===== CASE: -n -c func f (a, b, ...rest; c) { echo hi } =====


(Func
  keyword: <Id.KW_Func func>
  name: <Id.Expr_Name f>
  positional: 
    (ParamGroup
      params: [(Param blame_tok:<Id.Expr_Name a> name:a) (Param blame_tok:<Id.Expr_Name b> name:b)]
      rest_of: (RestParam blame_tok:<Id.Expr_Name rest> name:rest)
    )
  named: (ParamGroup params:[(Param blame_tok:<Id.Expr_Name c> name:c)])
  body: 
    (BraceGroup
      left: <Id.Lit_LBrace "{">
      children: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars hi>}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
)

===== CASE: -n -c func f (a, b, ...rest; c, ...named) { echo hi } =====


(Func
  keyword: <Id.KW_Func func>
  name: <Id.Expr_Name f>
  positional: 
    (ParamGroup
      params: [(Param blame_tok:<Id.Expr_Name a> name:a) (Param blame_tok:<Id.Expr_Name b> name:b)]
      rest_of: (RestParam blame_tok:<Id.Expr_Name rest> name:rest)
    )
  named: 
    (ParamGroup
      params: [(Param blame_tok:<Id.Expr_Name c> name:c)]
      rest_of: (RestParam blame_tok:<Id.Expr_Name named> name:named)
    )
  body: 
    (BraceGroup
      left: <Id.Lit_LBrace "{">
      children: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars hi>}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
)

===== CASE: -n -c func f (a, b, ...rest; c, ...named;) { echo hi } =====


  func f (a, b, ...rest; c, ...named;) { echo hi }
                                    ^
[ -c flag ]:1: Syntax error in expression (near Id.Op_Semi)
OK  test-func-sig
*** Running test-func-var-checker

===== CASE: -n -c 
  func f(x) {
    setvar x = true
  }
   =====


(Func
  keyword: <Id.KW_Func func>
  name: <Id.Expr_Name f>
  positional: (ParamGroup params:[(Param blame_tok:<Id.Expr_Name x> name:x)])
  body: 
    (BraceGroup
      left: <Id.Lit_LBrace "{">
      children: [
        (command.Mutation
          keyword: <Id.KW_SetVar setvar>
          lhs: [<Id.Expr_Name x>]
          op: <Id.Arith_Equal "=">
          rhs: (expr.Const c:<Id.Expr_True "true"> val:(value.Bool b:T))
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
)

===== CASE: -n -c 
  func f() {
    setvar x = true
  }
   =====


      setvar x = true
             ^
[ -c flag ]:3: setvar couldn't find matching 'var x' (OILS-ERR-10)
OK  test-func-var-checker
*** Running test-hay-assign

===== CASE: -n -c 
name = val
 =====


  name = val
       ^
[ -c flag ]:2: Unexpected = (Hint: use var/setvar, or quote it)

===== CASE: -n -c 
rule {
  x = 42
}
 =====


    x = 42
      ^
[ -c flag ]:3: Unexpected = (Hint: use var/setvar, or quote it)

===== CASE: -n -c 
RULE {
  x = 42
}
 =====


    x = 42
      ^
[ -c flag ]:3: Unexpected = (Hint: use var/setvar, or quote it)

===== CASE: -n -c 
Rule {
  x = 42
}
 =====


(command.Simple
  blame_tok: <Id.Lit_Chars Rule>
  more_env: []
  words: [{<Id.Lit_Chars Rule>}]
  block: 
    (LiteralBlock
      brace_group: 
        (BraceGroup
          left: <Id.Lit_LBrace "{">
          children: [
            (command.VarDecl
              lhs: [(NameType left:<Id.Lit_Chars x> name:x)]
              rhs: (expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))
            )
          ]
          right: <Id.Lit_RBrace "}">
        )
      lines: [
        (SourceLine line_num:2 content:"Rule {\n" src:(source__CFlag))
        (SourceLine line_num:3 content:"  x = 42\n" src:...0x7f356a894290)
        (SourceLine line_num:4 content:"}\n" src:...0x7f356a894290)
      ]
    )
  is_last_cmd: F
)

===== CASE: -n -c 
Rule X Y {
  x = 42
}
 =====


(command.Simple
  blame_tok: <Id.Lit_Chars Rule>
  more_env: []
  words: [{<Id.Lit_Chars Rule>} {<Id.Lit_Chars X>} {<Id.Lit_Chars Y>}]
  block: 
    (LiteralBlock
      brace_group: 
        (BraceGroup
          left: <Id.Lit_LBrace "{">
          children: [
            (command.VarDecl
              lhs: [(NameType left:<Id.Lit_Chars x> name:x)]
              rhs: (expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))
            )
          ]
          right: <Id.Lit_RBrace "}">
        )
      lines: [
        (SourceLine line_num:2 content:"Rule X Y {\n" src:(source__CFlag))
        (SourceLine line_num:3 content:"  x = 42\n" src:...0x7f55214932d0)
        (SourceLine line_num:4 content:"}\n" src:...0x7f55214932d0)
      ]
    )
  is_last_cmd: F
)

===== CASE: -n -c 
RULe {   # inconsistent but OK
  x = 42
}
 =====


(command.Simple
  blame_tok: <Id.Lit_Chars RULe>
  more_env: []
  words: [{<Id.Lit_Chars RULe>}]
  block: 
    (LiteralBlock
      brace_group: 
        (BraceGroup
          left: <Id.Lit_LBrace "{">
          children: [
            (command.VarDecl
              lhs: [(NameType left:<Id.Lit_Chars x> name:x)]
              rhs: (expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))
            )
          ]
          right: <Id.Lit_RBrace "}">
        )
      lines: [
        (SourceLine line_num:2 content:"RULe {   # inconsistent but OK\n" src:(source__CFlag))
        (SourceLine line_num:3 content:"  x = 42\n" src:...0x7f0eb7874290)
        (SourceLine line_num:4 content:"}\n" src:...0x7f0eb7874290)
      ]
    )
  is_last_cmd: F
)

===== CASE: -n -c 
hay eval :result {

  Rule {
    foo = 42
  }

  bar = 43   # parse error here
}
 =====


    bar = 43   # parse error here
        ^
[ -c flag ]:8: Unexpected = (Hint: use var/setvar, or quote it)

===== CASE: -n -c 
hay define TASK

TASK build {
  foo = 42
}
 =====


    foo = 42
        ^
[ -c flag ]:5: Unexpected = (Hint: use var/setvar, or quote it)

===== CASE: -n -c 
hay define Package/TASK

Package libc {
  TASK build {
    # this is not an attribute, should not be valid
    foo = 42
  }
}
 =====


      foo = 42
          ^
[ -c flag ]:7: Unexpected = (Hint: use var/setvar, or quote it)

===== CASE: -n -c 
hay define Rule

Rule {
  return (x)
}
 =====


    return (x)
           ^
[ -c flag ]:5: Typed return is only allowed inside func
OK  test-hay-assign
*** Running test-hay-shell-assign

===== CASE: -n -c 
hay define Package

Package foo {
  version=1
}
 =====


    version=1
    ^~~~~~~~
[ -c flag ]:5: Use var/setvar to assign in YSH

===== CASE: -n -c 
hay define Package/User

Package foo {
  User bob {
    sudo=1
  }
}
 =====


      sudo=1
      ^~~~~
[ -c flag ]:6: Use var/setvar to assign in YSH

===== CASE: -n -c 
hay define Package/SHELL/User

Package foo {
  SHELL bob {
    sudo=1
    User {
      name = "z"
    }
  }
}
 =====


(command.CommandList
  children: [
    (command.Simple
      blame_tok: <Id.Lit_Chars hay>
      more_env: []
      words: [
        {<Id.Lit_Chars hay>}
        {<Id.Lit_Chars define>}
        {<Id.Lit_Chars Package> <Id.Lit_Slash /> <Id.Lit_Chars SHELL> <Id.Lit_Slash /> 
          <Id.Lit_Chars User>
        }
      ]
      is_last_cmd: F
    )
    (command.Simple
      blame_tok: <Id.Lit_Chars Package>
      more_env: []
      words: [{<Id.Lit_Chars Package>} {<Id.Lit_Chars foo>}]
      block: 
        (LiteralBlock
          brace_group: 
            (BraceGroup
              left: <Id.Lit_LBrace "{">
              children: [
                (command.Simple
                  blame_tok: <Id.Lit_Chars SHELL>
                  more_env: []
                  words: [{<Id.Lit_Chars SHELL>} {<Id.Lit_Chars bob>}]
                  block: 
                    (LiteralBlock
                      brace_group: 
                        (BraceGroup
                          left: <Id.Lit_LBrace "{">
                          children: [
                            (command.ShAssignment
                              left: <Id.Lit_VarLike "sudo=">
                              pairs: [
                                (AssignPair
                                  left: <Id.Lit_VarLike "sudo=">
                                  lhs: (sh_lhs.Name left:<Id.Lit_VarLike "sudo="> name:sudo)
                                  op: assign_op.Equal
                                  rhs: {<Id.Lit_Chars 1>}
                                )
                              ]
                            )
                            (command.Simple
                              blame_tok: <Id.Lit_Chars User>
                              more_env: []
                              words: [{<Id.Lit_Chars User>}]
                              block: 
                                (LiteralBlock
                                  brace_group: 
                                    (BraceGroup
                                      left: <Id.Lit_LBrace "{">
                                      children: [
                                        (command.VarDecl
                                          lhs: [(NameType left:<Id.Lit_Chars name> name:name)]
                                          rhs: (DQ <Id.Lit_Chars z>)
                                        )
                                      ]
                                      right: <Id.Lit_RBrace "}">
                                    )
                                  lines: [
                                    (SourceLine
                                      line_num: 7
                                      content: "    User {\n"
                                      src: (source__CFlag)
                                    )
                                    (SourceLine
                                      line_num: 8
                                      content: "      name = \"z\"\n"
                                      src: ...0x7fcf9410d290
                                    )
                                    (SourceLine
                                      line_num: 9
                                      content: "    }\n"
                                      src: ...0x7fcf9410d290
                                    )
                                  ]
                                )
                              is_last_cmd: F
                            )
                          ]
                          right: <Id.Lit_RBrace "}">
                        )
                      lines: []
                    )
                  is_last_cmd: F
                )
              ]
              right: <Id.Lit_RBrace "}">
            )
          lines: []
        )
      is_last_cmd: F
    )
  ]
)

===== CASE: -n -c 
hay define Package/SHELL/User

Package foo {
  SHELL bob {
    # Disallowed
    # a = b
    User {
      x=1
    }
  }
}
 =====


        x=1
        ^~
[ -c flag ]:9: Use var/setvar to assign in YSH
OK  test-hay-shell-assign
*** Running test-int-literals

===== CASE: -n -c = 42 =====


(command.Expr keyword:<Id.Lit_Equals "="> e:(expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42)))

===== CASE: -n -c = 42_0 =====


(command.Expr keyword:<Id.Lit_Equals "="> e:(expr.Const c:<Id.Expr_DecInt 42_0> val:(value.Int i:420)))

===== CASE: -n -c = 42_ =====


  = 42_
      ^
[ -c flag ]:1: Units suffix not implemented

===== CASE: -n -c = 42_0_ =====


  = 42_0_
        ^
[ -c flag ]:1: Units suffix not implemented

===== CASE: -n -c = _42 =====


(command.Expr keyword:<Id.Lit_Equals "="> e:(expr.Var left:<Id.Expr_Name _42> name:_42))
OK  test-int-literals
*** Running test-invalid_parens

===== CASE: -n -c write -- $f(x) =====


  write -- $f(x)
             ^
[ -c flag ]:1: Unexpected left paren (might need a space before it)

===== CASE: -n -c write -- $f(x) =====


  write -- $f(x)
             ^
[ -c flag ]:1: Space required before (

===== CASE: -n -c write -- @[sorted(x)] =====


  write -- @[sorted(x)]
                   ^
[ -c flag ]:1: Unexpected left paren (might need a space before it)

===== CASE: -n -c write -- @[sorted(x)] =====


(command.Simple
  blame_tok: <Id.Lit_Chars write>
  more_env: []
  words: [
    {<Id.Lit_Chars write>}
    {<Id.Lit_Chars -->}
    {
      (word_part.ExprSub
        left: <Id.Lit_AtLBracket "@[">
        child: 
          (expr.FuncCall
            func: (expr.Var left:<Id.Expr_Name sorted> name:sorted)
            args: 
              (ArgList
                left: <Id.Op_LParen "(">
                pos_args: [(expr.Var left:<Id.Expr_Name x> name:x)]
                named_args: []
                right: <Id.Op_RParen ")">
              )
          )
        right: <Id.Op_RBracket "]">
      )
    }
  ]
  is_last_cmd: F
)

===== CASE: -n -c 
f() {
  write -- @[sorted(x)]
}
 =====


    write -- @[sorted(x)]
                     ^
[ -c flag ]:3: Unexpected left paren (might need a space before it)

===== CASE: -n -c 
f() {
  write -- @[sorted(x)]
}
 =====


(command.ShFunction
  name_tok: <Id.Lit_Chars f>
  name: f
  body: 
    (BraceGroup
      left: <Id.Lit_LBrace "{">
      children: [
        (command.Simple
          blame_tok: <Id.Lit_Chars write>
          more_env: []
          words: [
            {<Id.Lit_Chars write>}
            {<Id.Lit_Chars -->}
            {
              (word_part.ExprSub
                left: <Id.Lit_AtLBracket "@[">
                child: 
                  (expr.FuncCall
                    func: (expr.Var left:<Id.Expr_Name sorted> name:sorted)
                    args: 
                      (ArgList
                        left: <Id.Op_LParen "(">
                        pos_args: [(expr.Var left:<Id.Expr_Name x> name:x)]
                        named_args: []
                        right: <Id.Op_RParen ")">
                      )
                  )
                right: <Id.Op_RBracket "]">
              )
            }
          ]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
)

===== CASE: -n -c 
f() {
  write -- @sorted (( z ))
}
 =====


    write -- @sorted (( z ))
                     ^~
[ -c flag ]:3: Invalid word while parsing command list
OK  test-invalid_parens
*** Running test-lazy-arg-list

===== CASE: -n -c assert [42 === x] =====


(command.Simple
  blame_tok: <Id.Lit_Chars assert>
  more_env: []
  words: [{<Id.Lit_Chars assert>}]
  typed_args: 
    (ArgList
      left: <Id.Op_LBracket "[">
      pos_args: [
        (expr.Compare
          left: (expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))
          ops: [<Id.Expr_TEqual "===">]
          comparators: [(expr.Var left:<Id.Expr_Name x> name:x)]
        )
      ]
      named_args: []
      right: <Id.Op_RBracket "]">
    )
  is_last_cmd: F
)

===== CASE: -n -c assert [ 42 === x ] =====


(command.Simple
  blame_tok: <Id.Lit_Chars assert>
  more_env: []
  words: [{<Id.Lit_Chars assert>}]
  typed_args: 
    (ArgList
      left: <Id.Op_LBracket "[">
      pos_args: [
        (expr.Compare
          left: (expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))
          ops: [<Id.Expr_TEqual "===">]
          comparators: [(expr.Var left:<Id.Expr_Name x> name:x)]
        )
      ]
      named_args: []
      right: <Id.Op_RBracket "]">
    )
  is_last_cmd: F
)

===== CASE: -n -c assert [42, 43] =====


(command.Simple
  blame_tok: <Id.Lit_Chars assert>
  more_env: []
  words: [{<Id.Lit_Chars assert>}]
  typed_args: 
    (ArgList
      left: <Id.Op_LBracket "[">
      pos_args: [
        (expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))
        (expr.Const c:<Id.Expr_DecInt 43> val:(value.Int i:43))
      ]
      named_args: []
      right: <Id.Op_RBracket "]">
    )
  is_last_cmd: F
)

===== CASE: -n -c assert [42, named=true] =====


(command.Simple
  blame_tok: <Id.Lit_Chars assert>
  more_env: []
  words: [{<Id.Lit_Chars assert>}]
  typed_args: 
    (ArgList
      left: <Id.Op_LBracket "[">
      pos_args: [(expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))]
      named_args: [
        (NamedArg
          name: <Id.Expr_Name named>
          value: (expr.Const c:<Id.Expr_True "true"> val:(value.Bool b:T))
        )
      ]
      right: <Id.Op_RBracket "]">
    )
  is_last_cmd: F
)

===== CASE: -n -c assert [42, named=true]; echo hi =====


(command.CommandList
  children: [
    (command.Sentence
      child: 
        (command.Simple
          blame_tok: <Id.Lit_Chars assert>
          more_env: []
          words: [{<Id.Lit_Chars assert>}]
          typed_args: 
            (ArgList
              left: <Id.Op_LBracket "[">
              pos_args: [(expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))]
              named_args: [
                (NamedArg
                  name: <Id.Expr_Name named>
                  value: (expr.Const c:<Id.Expr_True "true"> val:(value.Bool b:T))
                )
              ]
              right: <Id.Op_RBracket "]">
            )
          is_last_cmd: F
        )
      terminator: <Id.Op_Semi ";">
    )
    (command.Simple
      blame_tok: <Id.Lit_Chars echo>
      more_env: []
      words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars hi>}]
      is_last_cmd: F
    )
  ]
)

===== CASE: -n -c assert [42, named=true] { echo hi } =====


(command.Simple
  blame_tok: <Id.Lit_Chars assert>
  more_env: []
  words: [{<Id.Lit_Chars assert>}]
  typed_args: 
    (ArgList
      left: <Id.Op_LBracket "[">
      pos_args: [(expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))]
      named_args: [
        (NamedArg
          name: <Id.Expr_Name named>
          value: (expr.Const c:<Id.Expr_True "true"> val:(value.Bool b:T))
        )
      ]
      right: <Id.Op_RBracket "]">
    )
  block: 
    (LiteralBlock
      brace_group: 
        (BraceGroup
          left: <Id.Lit_LBrace "{">
          children: [
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars hi>}]
              is_last_cmd: F
            )
          ]
          right: <Id.Lit_RBrace "}">
        )
      lines: [(SourceLine line_num:1 content:"assert [42, named=true] { echo hi }" src:(source__CFlag))]
    )
  is_last_cmd: F
)

===== CASE: -n -c assert [42, named=true]{ echo hi } =====


(command.Simple
  blame_tok: <Id.Lit_Chars assert>
  more_env: []
  words: [{<Id.Lit_Chars assert>}]
  typed_args: 
    (ArgList
      left: <Id.Op_LBracket "[">
      pos_args: [(expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))]
      named_args: [
        (NamedArg
          name: <Id.Expr_Name named>
          value: (expr.Const c:<Id.Expr_True "true"> val:(value.Bool b:T))
        )
      ]
      right: <Id.Op_RBracket "]">
    )
  block: 
    (LiteralBlock
      brace_group: 
        (BraceGroup
          left: <Id.Lit_LBrace "{">
          children: [
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars hi>}]
              is_last_cmd: F
            )
          ]
          right: <Id.Lit_RBrace "}">
        )
      lines: [(SourceLine line_num:1 content:"assert [42, named=true]{ echo hi }" src:(source__CFlag))]
    )
  is_last_cmd: F
)

===== CASE: -n -c assert *.[ch] =====


(command.Simple
  blame_tok: <Id.Lit_Chars assert>
  more_env: []
  words: [
    {<Id.Lit_Chars assert>}
    {<Id.Lit_Star "*"> <Id.Lit_Chars .> <Id.Lit_LBracket "["> <Id.Lit_Chars ch> <Id.Lit_RBracket "]">}
  ]
  is_last_cmd: F
)

===== CASE: -n -c assert 42[ch] =====


(command.Simple
  blame_tok: <Id.Lit_Chars assert>
  more_env: []
  words: [
    {<Id.Lit_Chars assert>}
    {<Id.Lit_Chars 42> <Id.Lit_LBracket "["> <Id.Lit_Chars ch> <Id.Lit_RBracket "]">}
  ]
  is_last_cmd: F
)

===== CASE: -n -c echo[] =====


(command.Simple
  blame_tok: <Id.Lit_ArrayLhsOpen "echo[">
  more_env: []
  words: [{<Id.Lit_ArrayLhsOpen "echo["> <Id.Lit_RBracket "]">}]
  is_last_cmd: F
)

===== CASE: -n -c assert [4 =====


  assert [4
           ^
[ -c flag ]:1: Syntax error in expression (near Id.Eof_Real)

===== CASE: -n -c assert [ 4 =====


  assert [ 4
            ^
[ -c flag ]:1: Syntax error in expression (near Id.Eof_Real)

===== CASE: -n -c json write (42) >out =====


(command.Redirect
  child: 
    (command.Simple
      blame_tok: <Id.Lit_Chars json>
      more_env: []
      words: [{<Id.Lit_Chars json>} {<Id.Lit_Chars write>}]
      typed_args: 
        (ArgList
          left: <Id.Op_LParen "(">
          pos_args: [(expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))]
          named_args: []
          right: <Id.Op_RParen ")">
        )
      is_last_cmd: F
    )
  redirects: [(Redir op:<Id.Redir_Great ">"> loc:(redir_loc.Fd fd:1) arg:{<Id.Lit_Chars out>})]
)

===== CASE: -n -c json write >out (42) =====


(command.Redirect
  child: 
    (command.Simple
      blame_tok: <Id.Lit_Chars json>
      more_env: []
      words: [{<Id.Lit_Chars json>} {<Id.Lit_Chars write>}]
      typed_args: 
        (ArgList
          left: <Id.Op_LParen "(">
          pos_args: [(expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))]
          named_args: []
          right: <Id.Op_RParen ")">
        )
      is_last_cmd: F
    )
  redirects: [(Redir op:<Id.Redir_Great ">"> loc:(redir_loc.Fd fd:1) arg:{<Id.Lit_Chars out>})]
)

===== CASE: -n -c [ x = y ] =====


(command.Simple
  blame_tok: <Id.Lit_LBracket "[">
  more_env: []
  words: [
    {<Id.Lit_LBracket "[">}
    {<Id.Lit_Chars x>}
    {<Id.Lit_Equals "=">}
    {<Id.Lit_Chars y>}
    {<Id.Lit_RBracket "]">}
  ]
  is_last_cmd: F
)
OK  test-lazy-arg-list
*** Running test-lhs-expr

===== CASE: -n -c setvar x.y[z] = 42 =====


(command.Mutation
  keyword: <Id.KW_SetVar setvar>
  lhs: [
    (Subscript
      left: <Id.Op_LBracket "[">
      obj: 
        (Attribute
          obj: (expr.Var left:<Id.Expr_Name x> name:x)
          op: <Id.Expr_Dot .>
          attr: <Id.Expr_Name y>
          attr_name: y
          ctx: expr_context.Store
        )
      index: (expr.Var left:<Id.Expr_Name z> name:z)
    )
  ]
  op: <Id.Arith_Equal "=">
  rhs: (expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))
)

===== CASE: -n -c setvar a[i][j] = 42 =====


(command.Mutation
  keyword: <Id.KW_SetVar setvar>
  lhs: [
    (Subscript
      left: <Id.Op_LBracket "[">
      obj: 
        (Subscript
          left: <Id.Op_LBracket "[">
          obj: (expr.Var left:<Id.Expr_Name a> name:a)
          index: (expr.Var left:<Id.Expr_Name i> name:i)
        )
      index: (expr.Var left:<Id.Expr_Name j> name:j)
    )
  ]
  op: <Id.Arith_Equal "=">
  rhs: (expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))
)

===== CASE: -n -c setvar a[i], d.key = 42, 43 =====


(command.Mutation
  keyword: <Id.KW_SetVar setvar>
  lhs: [
    (Subscript
      left: <Id.Op_LBracket "[">
      obj: (expr.Var left:<Id.Expr_Name a> name:a)
      index: (expr.Var left:<Id.Expr_Name i> name:i)
    )
    (Attribute
      obj: (expr.Var left:<Id.Expr_Name d> name:d)
      op: <Id.Expr_Dot .>
      attr: <Id.Expr_Name key>
      attr_name: key
      ctx: expr_context.Store
    )
  ]
  op: <Id.Arith_Equal "=">
  rhs: 
    (expr.Tuple
      left: <Id.Expr_DecInt 42>
      elts: [
        (expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))
        (expr.Const c:<Id.Expr_DecInt 43> val:(value.Int i:43))
      ]
      ctx: expr_context.Store
    )
)

===== CASE: -n -c setvar a[i], 3 = 42, 43 =====


  setvar a[i], 3 = 42, 43
               ^
[ -c flag ]:1: Can't assign to this expression

===== CASE: -n -c setvar a[i], {}["key"] = 42, 43 =====


  setvar a[i], {}["key"] = 42, 43
               ^
[ -c flag ]:1: Subscript/Attribute not allowed on this LHS expression

===== CASE: -n -c setvar x+y = 42 =====


  setvar x+y = 42
         ^
[ -c flag ]:1: Can't assign to this expression

===== CASE: -n -c setvar x->y = 42 =====


  setvar x->y = 42
          ^~
[ -c flag ]:1: Can't assign to this attribute expr

===== CASE: -n -c setglobal a[{k:3}["k"]]  = 42 =====


(command.Mutation
  keyword: <Id.KW_SetGlobal setglobal>
  lhs: [
    (Subscript
      left: <Id.Op_LBracket "[">
      obj: (expr.Var left:<Id.Expr_Name a> name:a)
      index: 
        (Subscript
          left: <Id.Op_LBracket "[">
          obj: 
            (expr.Dict
              left: <Id.Op_LBrace "{">
              keys: [(expr.Const c:<Id.Expr_Name k> val:(value.Str s:k))]
              values: [(expr.Const c:<Id.Expr_DecInt 3> val:(value.Int i:3))]
            )
          index: (DQ <Id.Lit_Chars k>)
        )
    )
  ]
  op: <Id.Arith_Equal "=">
  rhs: (expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))
)

===== CASE: -n -c setglobal {}["k"] = 42 =====


  setglobal {}["k"] = 42
            ^
[ -c flag ]:1: Subscript/Attribute not allowed on this LHS expression

===== CASE: -n -c setglobal [1,2][0] = 42 =====


  setglobal [1,2][0] = 42
            ^
[ -c flag ]:1: Subscript/Attribute not allowed on this LHS expression
OK  test-lhs-expr
*** Running test-make-these-nicer

===== CASE: -n -c = =====


  =
   ^
[ -c flag ]:1: Syntax error in expression (near Id.Eof_Real)

===== CASE: -n -c call =====


  call
      ^
[ -c flag ]:1: Syntax error in expression (near Id.Eof_Real)

===== CASE: -n -c const d = { name:
42 } =====


  const d = { name:
                   ^
[ -c flag ]:1: Syntax error in expression (near Id.Op_Newline)
OK  test-make-these-nicer
*** Running test-multiline-string

===== CASE: -n -c echo u'''
hi
'''
 =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [
    {<Id.Lit_Chars echo>}
    {(SingleQuoted left:<Id.Left_UTSingleQuote "'"> sval:"hi\n" right:<Id.Right_SingleQuote "'">)}
  ]
  is_last_cmd: F
)

===== CASE: -n -c echo b'''
hi
'''
 =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [
    {<Id.Lit_Chars echo>}
    {(SingleQuoted left:<Id.Left_BTSingleQuote "'"> sval:"hi\n" right:<Id.Right_SingleQuote "'">)}
  ]
  is_last_cmd: F
)

===== CASE: -n -c echo b'''
hi
''
 =====


  echo b'''
          ^
[ -c flag ]:1: Unexpected EOF in single-quoted string that began here

===== CASE: -n -c echo r'''
hi
'''bad
 =====


  '''bad
     ^~~
[ -c flag ]:3: Unexpected token after YSH single-quoted string

===== CASE: -n -c echo u'''
hi
'''bad
 =====


  '''bad
     ^~~
[ -c flag ]:3: Unexpected token after YSH single-quoted string

===== CASE: -n -c echo """
hi
"""bad
 =====


  """bad
     ^~~
[ -c flag ]:3: Unexpected parts after triple quoted string
OK  test-multiline-string
*** Running test-no-const

===== CASE: -n -c const x = 42 =====


(command.VarDecl
  keyword: <Id.KW_Const const>
  lhs: [(NameType left:<Id.Expr_Name x> name:x)]
  rhs: (expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))
)

===== CASE: -n -c 
  proc p {
    const x = 42
  } =====


      const x = 42
      ^~~~~
[ -c flag ]:3: const can't be inside proc or func.  Use var instead.

===== CASE: -n -c 
  func f() {
    const x = 42
  } =====


      const x = 42
      ^~~~~
[ -c flag ]:3: const can't be inside proc or func.  Use var instead.
OK  test-no-const
*** Running test-parse-at

===== CASE: -n -c echo @ =====


  echo @
       ^
[ -c flag ]:1: Literal @ starting a word must be quoted (parse_at_all)

===== CASE: -n -c echo @@ =====


  echo @@
       ^
[ -c flag ]:1: Literal @ starting a word must be quoted (parse_at_all)

===== CASE: -n -c echo @{foo} =====


  echo @{foo}
       ^
[ -c flag ]:1: Literal @ starting a word must be quoted (parse_at_all)

===== CASE: -n -c echo @/foo/ =====


  echo @/foo/
       ^
[ -c flag ]:1: Literal @ starting a word must be quoted (parse_at_all)

===== CASE: -n -c echo @"foo" =====


  echo @"foo"
       ^
[ -c flag ]:1: Literal @ starting a word must be quoted (parse_at_all)
OK  test-parse-at
*** Running test-parse-backslash

===== CASE: -n -c echo \( =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [{<Id.Lit_Chars echo>} {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar "\\("> ch:"(")}]
  is_last_cmd: F
)

===== CASE: -n -c echo \; =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [{<Id.Lit_Chars echo>} {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar "\\;"> ch:";")}]
  is_last_cmd: F
)

===== CASE: -n -c echo ~ =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [{<Id.Lit_Chars echo>} {(word_part.TildeSub left:<Id.Lit_Tilde "~">)}]
  is_last_cmd: F
)

===== CASE: -n -c echo \! =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [{<Id.Lit_Chars echo>} {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar "\\!"> ch:"!")}]
  is_last_cmd: F
)

===== CASE: -n -c echo \% =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [{<Id.Lit_Chars echo>} {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar "\\%"> ch:"%")}]
  is_last_cmd: F
)

===== CASE: -n -c echo \# =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [{<Id.Lit_Chars echo>} {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar "\\#"> ch:"#")}]
  is_last_cmd: F
)

===== CASE: -n -c echo \. =====


  echo \.
       ^~
[ -c flag ]:1: Invalid char escape in unquoted word (OILS-ERR-13)

===== CASE: -n -c echo \- =====


  echo \-
       ^~
[ -c flag ]:1: Invalid char escape in unquoted word (OILS-ERR-13)

===== CASE: -n -c echo \/ =====


  echo \/
       ^~
[ -c flag ]:1: Invalid char escape in unquoted word (OILS-ERR-13)

===== CASE: -n -c echo \a =====


  echo \a
       ^~
[ -c flag ]:1: Invalid char escape in unquoted word (OILS-ERR-13)

===== CASE: -n -c echo \Z =====


  echo \Z
       ^~
[ -c flag ]:1: Invalid char escape in unquoted word (OILS-ERR-13)

===== CASE: -n -c echo \0 =====


  echo \0
       ^~
[ -c flag ]:1: Invalid char escape in unquoted word (OILS-ERR-13)

===== CASE: -n -c echo \9 =====


  echo \9
       ^~
[ -c flag ]:1: Invalid char escape in unquoted word (OILS-ERR-13)

===== CASE: -n -c echo \. \- \/ \a \Z \0 \9 =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [
    {<Id.Lit_Chars echo>}
    {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar "\\."> ch:.)}
    {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar "\\-"> ch:-)}
    {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar "\\/"> ch:/)}
    {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar "\\a"> ch:a)}
    {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar "\\Z"> ch:Z)}
    {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar "\\0"> ch:0)}
    {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar "\\9"> ch:9)}
  ]
  is_last_cmd: F
)
OK  test-parse-backslash
*** Running test-parse-brace

===== CASE: -n -c if test -f foo{ echo hi } =====


  if test -f foo{ echo hi }
             ^~~
[ -c flag ]:1: Word has unbalanced { }.  Maybe add a space or quote it like \{
OK  test-parse-brace
*** Running test-parse-dparen

===== CASE: -n -c ((1 > 0 && 43 > 42)) =====


(command.DParen
  left: <Id.Op_DLeftParen "((">
  child: 
    (arith_expr.Binary
      op: <Id.Arith_DAmp "&&">
      left: 
        (arith_expr.Binary
          op: <Id.Arith_Great ">">
          left: {<Id.Lit_Digits 1>}
          right: {<Id.Lit_Digits 0>}
        )
      right: 
        (arith_expr.Binary
          op: <Id.Arith_Great ">">
          left: {<Id.Lit_Digits 43>}
          right: {<Id.Lit_Digits 42>}
        )
    )
  right: <Id.Op_DRightParen ")">
)

===== CASE: -n -c ((1 > 0 && 43 > 42)) =====


  ((1 > 0 && 43 > 42))
  ^~
[ -c flag ]:1: Bash (( not allowed in YSH (parse_dparen, see OILS-ERR-14 for wart)

===== CASE: -n -c if ((1 > 0 && 43 > 42)); then echo yes; fi =====


(command.If
  if_kw: <Id.KW_If if>
  arms: [
    (IfArm
      keyword: <Id.KW_If if>
      cond: 
        (condition.Shell
          commands: [
            (command.Sentence
              child: 
                (command.DParen
                  left: <Id.Op_DLeftParen "((">
                  child: 
                    (arith_expr.Binary
                      op: <Id.Arith_DAmp "&&">
                      left: 
                        (arith_expr.Binary
                          op: <Id.Arith_Great ">">
                          left: {<Id.Lit_Digits 1>}
                          right: {<Id.Lit_Digits 0>}
                        )
                      right: 
                        (arith_expr.Binary
                          op: <Id.Arith_Great ">">
                          left: {<Id.Lit_Digits 43>}
                          right: {<Id.Lit_Digits 42>}
                        )
                    )
                  right: <Id.Op_DRightParen ")">
                )
              terminator: <Id.Op_Semi ";">
            )
          ]
        )
      then_kw: <Id.KW_Then then>
      action: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars yes>}]
              is_last_cmd: F
            )
          terminator: <Id.Op_Semi ";">
        )
      ]
      then_tok: <Id.KW_Then then>
    )
  ]
  else_action: []
  fi_kw: <Id.KW_Fi fi>
)

===== CASE: -n -c if ((1 > 0 && 43 > 42)); then echo yes; fi =====


  if ((1 > 0 && 43 > 42)); then echo yes; fi
     ^~
[ -c flag ]:1: Bash (( not allowed in YSH (parse_dparen, see OILS-ERR-14 for wart)

===== CASE: -n -c for ((x = 1; x < 5; ++x)); do echo $x; done =====


(command.ForExpr
  keyword: <Id.KW_For for>
  init: 
    (arith_expr.BinaryAssign
      op_id: Id.Arith_Equal
      left: <Id.Lit_ArithVarLike x>
      right: {<Id.Lit_Digits 1>}
    )
  cond: 
    (arith_expr.Binary
      op: <Id.Arith_Less "<">
      left: <Id.Lit_ArithVarLike x>
      right: {<Id.Lit_Digits 5>}
    )
  update: (arith_expr.UnaryAssign op_id:Id.Arith_DPlus child:<Id.Lit_ArithVarLike x>)
  body: 
    (command.DoGroup
      left: <Id.KW_Do do>
      children: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {($ x)}]
              is_last_cmd: F
            )
          terminator: <Id.Op_Semi ";">
        )
      ]
      right: <Id.KW_Done done>
    )
)

===== CASE: -n -c for ((x = 1; x < 5; ++x)); do echo $x; done =====


  for ((x = 1; x < 5; ++x)); do echo $x; done
      ^~
[ -c flag ]:1: Bash for loops aren't allowed (parse_dparen)

===== CASE: -n -c if (1 > 0 and 43 > 42) { echo yes } =====


(command.If
  if_kw: <Id.KW_If if>
  arms: [
    (IfArm
      keyword: <Id.KW_If if>
      cond: 
        (condition.YshExpr
          e: 
            (expr.Binary
              op: <Id.Expr_And and>
              left: 
                (expr.Compare
                  left: (expr.Const c:<Id.Expr_DecInt 1> val:(value.Int i:1))
                  ops: [<Id.Arith_Great ">">]
                  comparators: [(expr.Const c:<Id.Expr_DecInt 0> val:(value.Int i:0))]
                )
              right: 
                (expr.Compare
                  left: (expr.Const c:<Id.Expr_DecInt 43> val:(value.Int i:43))
                  ops: [<Id.Arith_Great ">">]
                  comparators: [(expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))]
                )
            )
        )
      action: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars yes>}]
          is_last_cmd: F
        )
      ]
    )
  ]
  else_action: []
)

===== CASE: -n -c if ( (1 > 0 and 43 > 42) ) { echo yes } =====


(command.If
  if_kw: <Id.KW_If if>
  arms: [
    (IfArm
      keyword: <Id.KW_If if>
      cond: 
        (condition.YshExpr
          e: 
            (expr.Binary
              op: <Id.Expr_And and>
              left: 
                (expr.Compare
                  left: (expr.Const c:<Id.Expr_DecInt 1> val:(value.Int i:1))
                  ops: [<Id.Arith_Great ">">]
                  comparators: [(expr.Const c:<Id.Expr_DecInt 0> val:(value.Int i:0))]
                )
              right: 
                (expr.Compare
                  left: (expr.Const c:<Id.Expr_DecInt 43> val:(value.Int i:43))
                  ops: [<Id.Arith_Great ">">]
                  comparators: [(expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))]
                )
            )
        )
      action: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars yes>}]
          is_last_cmd: F
        )
      ]
    )
  ]
  else_action: []
)
OK  test-parse-dparen
*** Running test-parse_dollar

===== CASE: -n -c echo $ =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [{<Id.Lit_Chars echo>} {<Id.Lit_Dollar "$">}]
  is_last_cmd: F
)

===== CASE: +O test-parse_dollar -n -c echo $ =====


oils: got invalid option 'test-parse_dollar'

===== CASE: -n -c echo $ =====


  echo $
       ^
[ -c flag ]:1: Literal $ should be quoted like \$

===== CASE: -n -c echo $: =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [{<Id.Lit_Chars echo>} {<Id.Lit_Dollar "$"> <Id.Lit_Colon ":">}]
  is_last_cmd: F
)

===== CASE: +O test-parse_dollar -n -c echo $: =====


oils: got invalid option 'test-parse_dollar'

===== CASE: -n -c echo $: =====


  echo $:
       ^
[ -c flag ]:1: Literal $ should be quoted like \$

===== CASE: -n -c echo "$" =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [{<Id.Lit_Chars echo>} {(DQ <Id.Lit_Dollar "$">)}]
  is_last_cmd: F
)

===== CASE: +O test-parse_dollar -n -c echo "$" =====


oils: got invalid option 'test-parse_dollar'

===== CASE: -n -c echo "$" =====


  echo "$"
        ^
[ -c flag ]:1: Literal $ should be quoted like \$

===== CASE: -n -c echo "$:" =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [{<Id.Lit_Chars echo>} {(DQ <Id.Lit_Dollar "$"> <Id.Lit_Chars ":">)}]
  is_last_cmd: F
)

===== CASE: +O test-parse_dollar -n -c echo "$:" =====


oils: got invalid option 'test-parse_dollar'

===== CASE: -n -c echo "$:" =====


  echo "$:"
        ^
[ -c flag ]:1: Literal $ should be quoted like \$

===== CASE: -n -c echo ${x:-$} =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [
    {<Id.Lit_Chars echo>}
    {
      (BracedVarSub
        left: <Id.Left_DollarBrace "${">
        token: <Id.VSub_Name x>
        var_name: x
        suffix_op: (suffix_op.Unary op:<Id.VTest_ColonHyphen ":-"> arg_word:{<Id.Lit_Dollar "$">})
        right: <Id.Right_DollarBrace "}">
      )
    }
  ]
  is_last_cmd: F
)

===== CASE: +O test-parse_dollar -n -c echo ${x:-$} =====


oils: got invalid option 'test-parse_dollar'

===== CASE: -n -c echo ${x:-$} =====


  echo ${x:-$}
            ^
[ -c flag ]:1: Literal $ should be quoted like \$

===== CASE: -n -c echo ${x:-$:} =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [
    {<Id.Lit_Chars echo>}
    {
      (BracedVarSub
        left: <Id.Left_DollarBrace "${">
        token: <Id.VSub_Name x>
        var_name: x
        suffix_op: 
          (suffix_op.Unary
            op: <Id.VTest_ColonHyphen ":-">
            arg_word: {<Id.Lit_Dollar "$"> <Id.Lit_Chars ":">}
          )
        right: <Id.Right_DollarBrace "}">
      )
    }
  ]
  is_last_cmd: F
)

===== CASE: +O test-parse_dollar -n -c echo ${x:-$:} =====


oils: got invalid option 'test-parse_dollar'

===== CASE: -n -c echo ${x:-$:} =====


  echo ${x:-$:}
            ^
[ -c flag ]:1: Literal $ should be quoted like \$

===== CASE: -n -c echo "${x:-$}" =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [
    {<Id.Lit_Chars echo>}
    {
      (DQ 
        (BracedVarSub
          left: <Id.Left_DollarBrace "${">
          token: <Id.VSub_Name x>
          var_name: x
          suffix_op: (suffix_op.Unary op:<Id.VTest_ColonHyphen ":-"> arg_word:{<Id.Lit_Dollar "$">})
          right: <Id.Right_DollarBrace "}">
        )
      )
    }
  ]
  is_last_cmd: F
)

===== CASE: +O test-parse_dollar -n -c echo "${x:-$}" =====


oils: got invalid option 'test-parse_dollar'

===== CASE: -n -c echo "${x:-$}" =====


  echo "${x:-$}"
             ^
[ -c flag ]:1: Literal $ should be quoted like \$

===== CASE: -n -c echo "${x:-$:}" =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [
    {<Id.Lit_Chars echo>}
    {
      (DQ 
        (BracedVarSub
          left: <Id.Left_DollarBrace "${">
          token: <Id.VSub_Name x>
          var_name: x
          suffix_op: 
            (suffix_op.Unary
              op: <Id.VTest_ColonHyphen ":-">
              arg_word: {<Id.Lit_Dollar "$"> <Id.Lit_Chars ":">}
            )
          right: <Id.Right_DollarBrace "}">
        )
      )
    }
  ]
  is_last_cmd: F
)

===== CASE: +O test-parse_dollar -n -c echo "${x:-$:}" =====


oils: got invalid option 'test-parse_dollar'

===== CASE: -n -c echo "${x:-$:}" =====


  echo "${x:-$:}"
             ^
[ -c flag ]:1: Literal $ should be quoted like \$
OK  test-parse_dollar
*** Running test-place-expr

===== CASE: -n -c read (&x) =====


(command.Simple
  blame_tok: <Id.Lit_Chars read>
  more_env: []
  words: [{<Id.Lit_Chars read>}]
  typed_args: 
    (ArgList
      left: <Id.Op_LParen "(">
      pos_args: [(expr.Place blame_tok:<Id.Expr_Name x> var_name:x ops:[])]
      named_args: []
      right: <Id.Op_RParen ")">
    )
  is_last_cmd: F
)

===== CASE: -n -c read (&x[0]) =====


  read (&x[0])
          ^
[ -c flag ]:1: Places in containers not implemented yet

===== CASE: -n -c read (&x[0][1]) =====


  read (&x[0][1])
          ^
[ -c flag ]:1: Places in containers not implemented yet

===== CASE: -n -c read (&x.key.other) =====


  read (&x.key.other)
          ^
[ -c flag ]:1: Places in containers not implemented yet

===== CASE: -n -c read (&x + 1) =====


(command.Simple
  blame_tok: <Id.Lit_Chars read>
  more_env: []
  words: [{<Id.Lit_Chars read>}]
  typed_args: 
    (ArgList
      left: <Id.Op_LParen "(">
      pos_args: [
        (expr.Binary
          op: <Id.Arith_Plus "+">
          left: (expr.Place blame_tok:<Id.Expr_Name x> var_name:x ops:[])
          right: (expr.Const c:<Id.Expr_DecInt 1> val:(value.Int i:1))
        )
      ]
      named_args: []
      right: <Id.Op_RParen ")">
    )
  is_last_cmd: F
)

===== CASE: -n -c read (&42) =====


  read (&42)
         ^~
[ -c flag ]:1: Syntax error in expression (near Id.Expr_DecInt)

===== CASE: -n -c read (&+) =====


  read (&+)
         ^
[ -c flag ]:1: Syntax error in expression (near Id.Arith_Plus)

===== CASE: -n -c read (&(x)) =====


  read (&(x))
         ^
[ -c flag ]:1: Syntax error in expression (near Id.Op_LParen)
OK  test-place-expr
*** Running test-proc-args

===== CASE: -n -c json write (x) =====


(command.Simple
  blame_tok: <Id.Lit_Chars json>
  more_env: []
  words: [{<Id.Lit_Chars json>} {<Id.Lit_Chars write>}]
  typed_args: 
    (ArgList
      left: <Id.Op_LParen "(">
      pos_args: [(expr.Var left:<Id.Expr_Name x> name:x)]
      named_args: []
      right: <Id.Op_RParen ")">
    )
  is_last_cmd: F
)

===== CASE: -n -c echo $(json write (x)) =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [
    {<Id.Lit_Chars echo>}
    {
      (CommandSub
        left_token: <Id.Left_DollarParen "$(">
        child: 
          (command.Simple
            blame_tok: <Id.Lit_Chars json>
            more_env: []
            words: [{<Id.Lit_Chars json>} {<Id.Lit_Chars write>}]
            typed_args: 
              (ArgList
                left: <Id.Op_LParen "(">
                pos_args: [(expr.Var left:<Id.Expr_Name x> name:x)]
                named_args: []
                right: <Id.Op_RParen ")">
              )
            is_last_cmd: F
          )
        right: <Id.Eof_RParen ")">
      )
    }
  ]
  is_last_cmd: F
)

===== CASE: -n -c var result = $(json write (x)) =====


(command.VarDecl
  keyword: <Id.KW_Var var>
  lhs: [(NameType left:<Id.Expr_Name result> name:result)]
  rhs: 
    (CommandSub
      left_token: <Id.Left_DollarParen "$(">
      child: 
        (command.Simple
          blame_tok: <Id.Lit_Chars json>
          more_env: []
          words: [{<Id.Lit_Chars json>} {<Id.Lit_Chars write>}]
          typed_args: 
            (ArgList
              left: <Id.Op_LParen "(">
              pos_args: [(expr.Var left:<Id.Expr_Name x> name:x)]
              named_args: []
              right: <Id.Op_RParen ")">
            )
          is_last_cmd: F
        )
      right: <Id.Eof_RParen ")">
    )
)

===== CASE: -n -c json write (x, y); echo hi =====


(command.CommandList
  children: [
    (command.Sentence
      child: 
        (command.Simple
          blame_tok: <Id.Lit_Chars json>
          more_env: []
          words: [{<Id.Lit_Chars json>} {<Id.Lit_Chars write>}]
          typed_args: 
            (ArgList
              left: <Id.Op_LParen "(">
              pos_args: [
                (expr.Var left:<Id.Expr_Name x> name:x)
                (expr.Var left:<Id.Expr_Name y> name:y)
              ]
              named_args: []
              right: <Id.Op_RParen ")">
            )
          is_last_cmd: F
        )
      terminator: <Id.Op_Semi ";">
    )
    (command.Simple
      blame_tok: <Id.Lit_Chars echo>
      more_env: []
      words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars hi>}]
      is_last_cmd: F
    )
  ]
)

===== CASE: -n -c 
json write (x, name = "value")
echo hi
 =====


(command.CommandList
  children: [
    (command.Simple
      blame_tok: <Id.Lit_Chars json>
      more_env: []
      words: [{<Id.Lit_Chars json>} {<Id.Lit_Chars write>}]
      typed_args: 
        (ArgList
          left: <Id.Op_LParen "(">
          pos_args: [(expr.Var left:<Id.Expr_Name x> name:x)]
          named_args: [(NamedArg name:<Id.Expr_Name name> value:(DQ <Id.Lit_Chars value>))]
          right: <Id.Op_RParen ")">
        )
      is_last_cmd: F
    )
    (command.Simple
      blame_tok: <Id.Lit_Chars echo>
      more_env: []
      words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars hi>}]
      is_last_cmd: F
    )
  ]
)

===== CASE: -n -c json write (x) { echo hi } =====


(command.Simple
  blame_tok: <Id.Lit_Chars json>
  more_env: []
  words: [{<Id.Lit_Chars json>} {<Id.Lit_Chars write>}]
  typed_args: 
    (ArgList
      left: <Id.Op_LParen "(">
      pos_args: [(expr.Var left:<Id.Expr_Name x> name:x)]
      named_args: []
      right: <Id.Op_RParen ")">
    )
  block: 
    (LiteralBlock
      brace_group: 
        (BraceGroup
          left: <Id.Lit_LBrace "{">
          children: [
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars hi>}]
              is_last_cmd: F
            )
          ]
          right: <Id.Lit_RBrace "}">
        )
      lines: [(SourceLine line_num:1 content:"json write (x) { echo hi }" src:(source__CFlag))]
    )
  is_last_cmd: F
)

===== CASE: -n -c 
json write (x) {
  echo hi
} =====


(command.Simple
  blame_tok: <Id.Lit_Chars json>
  more_env: []
  words: [{<Id.Lit_Chars json>} {<Id.Lit_Chars write>}]
  typed_args: 
    (ArgList
      left: <Id.Op_LParen "(">
      pos_args: [(expr.Var left:<Id.Expr_Name x> name:x)]
      named_args: []
      right: <Id.Op_RParen ")">
    )
  block: 
    (LiteralBlock
      brace_group: 
        (BraceGroup
          left: <Id.Lit_LBrace "{">
          children: [
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars hi>}]
              is_last_cmd: F
            )
          ]
          right: <Id.Lit_RBrace "}">
        )
      lines: [
        (SourceLine line_num:2 content:"json write (x) {\n" src:(source__CFlag))
        (SourceLine line_num:3 content:"  echo hi\n" src:...0x7f0ec2cac290)
        (SourceLine line_num:4 content:"}" src:...0x7f0ec2cac290)
      ]
    )
  is_last_cmd: F
)

===== CASE: -n -c json write (
    x,
    y,
    z
  ) =====


(command.Simple
  blame_tok: <Id.Lit_Chars json>
  more_env: []
  words: [{<Id.Lit_Chars json>} {<Id.Lit_Chars write>}]
  typed_args: 
    (ArgList
      left: <Id.Op_LParen "(">
      pos_args: [
        (expr.Var left:<Id.Expr_Name x> name:x)
        (expr.Var left:<Id.Expr_Name y> name:y)
        (expr.Var left:<Id.Expr_Name z> name:z)
      ]
      named_args: []
      right: <Id.Op_RParen ")">
    )
  is_last_cmd: F
)

===== CASE: -n -c json write () =====


  json write ()
             ^
[ -c flag ]:1: Empty arg list not allowed

===== CASE: -n -c json write ( ) =====


  json write ( )
             ^
[ -c flag ]:1: Empty arg list not allowed

===== CASE: -n -c json write(x) =====


  json write(x)
            ^
[ -c flag ]:1: Space required before (

===== CASE: -n -c json write() =====


  json write()
            ^
[ -c flag ]:1: Space required before (

===== CASE: -n -c f(x) =====


  f(x)
   ^
[ -c flag ]:1: Space required before (
OK  test-proc-args
*** Running test-proc-def

===== CASE: -n -c proc p(w) { var w = foo } =====


  proc p(w) { var w = foo }
                  ^
[ -c flag ]:1: 'w' was already declared

===== CASE: -n -c proc p(w; p) { var p = foo } =====


  proc p(w; p) { var p = foo }
                     ^
[ -c flag ]:1: 'p' was already declared

===== CASE: -n -c proc p(w; p; n, n2) { var n2 = foo } =====


  proc p(w; p; n, n2) { var n2 = foo }
                            ^~
[ -c flag ]:1: 'n2' was already declared

===== CASE: -n -c proc p(w; p; n, n2; b) { var b = foo } =====


  proc p(w; p; n, n2; b) { var b = foo }
                               ^
[ -c flag ]:1: 'b' was already declared
OK  test-proc-def
*** Running test-proc-sig

===== CASE: -n -c proc f[] { echo hi } =====


  proc f[] { echo hi }
       ^~
[ -c flag ]:1: Invalid proc name 'f['

===== CASE: -n -c proc : { echo hi } =====


  proc : { echo hi }
       ^
[ -c flag ]:1: Invalid proc name ':'

===== CASE: -n -c proc foo::bar { echo hi } =====


  proc foo::bar { echo hi }
          ^
[ -c flag ]:1: Syntax error in expression (near Id.Arith_Colon)
OK  test-proc-sig
*** Running test-regex-literals

===== CASE: -n -c var x = / ! / =====


  var x = / ! /
              ^
[ -c flag ]:1: Syntax error in expression (near Id.Arith_Slash)

===== CASE: -n -c var x = / ![a-z] / =====


(command.VarDecl
  keyword: <Id.KW_Var var>
  lhs: [(NameType left:<Id.Expr_Name x> name:x)]
  rhs: 
    (Eggex
      left: <Id.Arith_Slash />
      regex: 
        (re.CharClassLiteral
          negated: T
          terms: [
            (CharRange
              start: (CharCode blame_tok:<Id.Expr_Name a> i:97 u_braced:F)
              end: (CharCode blame_tok:<Id.Expr_Name z> i:122 u_braced:F)
            )
          ]
        )
      flags: []
      canonical_flags: ""
    )
)

===== CASE: -n -c var x = / !d / =====


(command.VarDecl
  keyword: <Id.KW_Var var>
  lhs: [(NameType left:<Id.Expr_Name x> name:x)]
  rhs: 
    (Eggex
      left: <Id.Arith_Slash />
      regex: (PerlClass negated:<Id.Expr_Bang "!"> name:d)
      flags: []
      canonical_flags: ""
    )
)

===== CASE: -n -c var x = / !! / =====


  var x = / !! /
               ^
[ -c flag ]:1: Syntax error in expression (near Id.Arith_Slash)

===== CASE: -n -c var x = /[a-zA-Z]/ =====


  var x = /[a-zA-Z]/
                ^
[ -c flag ]:1: Syntax error in expression (near Id.Arith_Minus)

===== CASE: -n -c var x = /[a-z0-9]/ =====


  var x = /[a-z0-9]/
                ^
[ -c flag ]:1: Syntax error in expression (near Id.Arith_Minus)

===== CASE: -n -c var x = /[a-zz]/ =====


  var x = /[a-zz]/
              ^~
[ -c flag ]:1: Range start/end shouldn't have more than one character

===== CASE: -n -c var x = /['ab'-'z']/ =====


  var x = /['ab'-'z']/
            ^
[ -c flag ]:1: Range start/end shouldn't have more than one character

===== CASE: -n -c var x = /[$a-${z}]/ =====


  var x = /[$a-${z}]/
            ^~
[ -c flag ]:1: Syntax error in expression (near Id.VSub_DollarName)

===== CASE: -n -c var x = /[abc]/ =====


  var x = /[abc]/
            ^~~
[ -c flag ]:1: 'abc' isn't a character class

===== CASE: -n -c var x = /[% _]/ =====


  var x = /[% _]/
            ^
[ -c flag ]:1: Syntax error in expression (near Id.Arith_Percent)
OK  test-regex-literals
*** Running test-return-args

===== CASE: -n -c 
  func foo(x) {
    return (x)
  }
   =====


(Func
  keyword: <Id.KW_Func func>
  name: <Id.Expr_Name foo>
  positional: (ParamGroup params:[(Param blame_tok:<Id.Expr_Name x> name:x)])
  body: 
    (BraceGroup
      left: <Id.Lit_LBrace "{">
      children: [
        (command.Retval
          keyword: <Id.ControlFlow_Return return>
          val: (expr.Var left:<Id.Expr_Name x> name:x)
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
)

===== CASE: -n -c 
  func foo(x) {
    return ()
  }
   =====


      return ()
      ^~~~~~
[ -c flag ]:3: shell functions can't be defined inside proc or func

===== CASE: -n -c 
  func foo(x) {
    return (named=x)
  }
   =====


      return (named=x)
             ^
[ -c flag ]:3: Typed return expects one argument

===== CASE: -n -c 
  func foo(x) {
    return (x, named=x)
  }
   =====


      return (x, named=x)
             ^
[ -c flag ]:3: Typed return doesn't take named arguments

===== CASE: -n -c 
  func foo(x) {
    return (x, x)
  }
   =====


      return (x, x)
             ^
[ -c flag ]:3: Typed return expects one argument
OK  test-return-args
*** Running test-setvar

===== CASE: -n -c 
  proc p(x) {
    var y = 1
    setvar y = 42
  }
   =====


(Proc
  keyword: <Id.KW_Proc proc>
  name: <Id.Lit_Chars p>
  sig: (proc_sig.Closed word:(ParamGroup params:[(Param blame_tok:<Id.Expr_Name x> name:x)]))
  body: 
    (BraceGroup
      left: <Id.Lit_LBrace "{">
      children: [
        (command.VarDecl
          keyword: <Id.KW_Var var>
          lhs: [(NameType left:<Id.Expr_Name y> name:y)]
          rhs: (expr.Const c:<Id.Expr_DecInt 1> val:(value.Int i:1))
        )
        (command.Mutation
          keyword: <Id.KW_SetVar setvar>
          lhs: [<Id.Expr_Name y>]
          op: <Id.Arith_Equal "=">
          rhs: (expr.Const c:<Id.Expr_DecInt 42> val:(value.Int i:42))
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
)

===== CASE: -n -c 
  proc p(x) {
    var y = 1
    setvar L = "L"  # ERROR: not declared
  }
   =====


      setvar L = "L"  # ERROR: not declared
             ^
[ -c flag ]:4: setvar couldn't find matching 'var L' (OILS-ERR-10)

===== CASE: -n -c 
  proc p(x) {
    var y = 1
    setvar L[0] = "L"  # ERROR: not declared
  }
   =====


      setvar L[0] = "L"  # ERROR: not declared
             ^
[ -c flag ]:4: setvar couldn't find matching 'var L' (OILS-ERR-10)

===== CASE: -n -c 
  proc p(x) {
    var y = 1
    setvar d.key = "v"  # ERROR: not declared
  }
   =====


      setvar d.key = "v"  # ERROR: not declared
             ^
[ -c flag ]:4: setvar couldn't find matching 'var d' (OILS-ERR-10)

===== CASE: -n -c 
  proc p(x) {
    setvar x = "X"  # is mutating params allowed?  I guess why not.
  }
   =====


(Proc
  keyword: <Id.KW_Proc proc>
  name: <Id.Lit_Chars p>
  sig: (proc_sig.Closed word:(ParamGroup params:[(Param blame_tok:<Id.Expr_Name x> name:x)]))
  body: 
    (BraceGroup
      left: <Id.Lit_LBrace "{">
      children: [
        (command.Mutation
          keyword: <Id.KW_SetVar setvar>
          lhs: [<Id.Expr_Name x>]
          op: <Id.Arith_Equal "=">
          rhs: (DQ <Id.Lit_Chars X>)
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
)
OK  test-setvar
*** Running test-sh-assign

===== CASE: -n -c x=y =====


(command.ShAssignment
  left: <Id.Lit_VarLike "x=">
  pairs: [
    (AssignPair
      left: <Id.Lit_VarLike "x=">
      lhs: (sh_lhs.Name left:<Id.Lit_VarLike "x="> name:x)
      op: assign_op.Equal
      rhs: {<Id.Lit_Chars y>}
    )
  ]
)

===== CASE: -n -c x=y echo hi =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: [(EnvPair left:<Id.Lit_VarLike "x="> name:x val:{<Id.Lit_Chars y>})]
  words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars hi>}]
  is_last_cmd: F
)

===== CASE: -n -c f() { x=y; } =====


(command.ShFunction
  name_tok: <Id.Lit_Chars f>
  name: f
  body: 
    (BraceGroup
      left: <Id.Lit_LBrace "{">
      children: [
        (command.Sentence
          child: 
            (command.ShAssignment
              left: <Id.Lit_VarLike "x=">
              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike "x=">
                  lhs: (sh_lhs.Name left:<Id.Lit_VarLike "x="> name:x)
                  op: assign_op.Equal
                  rhs: {<Id.Lit_Chars y>}
                )
              ]
            )
          terminator: <Id.Op_Semi ";">
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
)

===== CASE: -n -c func f() { x=y; } =====


  func f() { x=y; }
             ^~
[ -c flag ]:1: Use var/setvar to assign in YSH

===== CASE: -n -c proc p { x=y; } =====


  proc p { x=y; }
           ^~
[ -c flag ]:1: Use var/setvar to assign in YSH

===== CASE: -n -c { x=y; } =====


(BraceGroup
  left: <Id.Lit_LBrace "{">
  children: [
    (command.Sentence
      child: 
        (command.ShAssignment
          left: <Id.Lit_VarLike "x=">
          pairs: [
            (AssignPair
              left: <Id.Lit_VarLike "x=">
              lhs: (sh_lhs.Name left:<Id.Lit_VarLike "x="> name:x)
              op: assign_op.Equal
              rhs: {<Id.Lit_Chars y>}
            )
          ]
        )
      terminator: <Id.Op_Semi ";">
    )
  ]
  right: <Id.Lit_RBrace "}">
)

===== CASE: -n -c ( x=y; ) =====


(command.Subshell
  left: <Id.Op_LParen "(">
  child: 
    (command.Sentence
      child: 
        (command.ShAssignment
          left: <Id.Lit_VarLike "x=">
          pairs: [
            (AssignPair
              left: <Id.Lit_VarLike "x=">
              lhs: (sh_lhs.Name left:<Id.Lit_VarLike "x="> name:x)
              op: assign_op.Equal
              rhs: {<Id.Lit_Chars y>}
            )
          ]
        )
      terminator: <Id.Op_Semi ";">
    )
  right: <Id.Right_Subshell ")">
  is_last_cmd: F
)

===== CASE: -o ysh:upgrade -n -c x=y =====


(command.ShAssignment
  left: <Id.Lit_VarLike "x=">
  pairs: [
    (AssignPair
      left: <Id.Lit_VarLike "x=">
      lhs: (sh_lhs.Name left:<Id.Lit_VarLike "x="> name:x)
      op: assign_op.Equal
      rhs: {<Id.Lit_Chars y>}
    )
  ]
)
OK  test-sh-assign
*** Running test-string-literals

===== CASE: -n -c echo r'hi'; =====


(command.Sentence
  child: 
    (command.Simple
      blame_tok: <Id.Lit_Chars echo>
      more_env: []
      words: [
        {<Id.Lit_Chars echo>}
        {(SingleQuoted left:<Id.Left_RSingleQuote "'"> sval:hi right:<Id.Right_SingleQuote "'">)}
      ]
      is_last_cmd: F
    )
  terminator: <Id.Op_Semi ";">
)

===== CASE: -n -c echo u'hi' =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [
    {<Id.Lit_Chars echo>}
    {(SingleQuoted left:<Id.Left_USingleQuote "'"> sval:hi right:<Id.Right_SingleQuote "'">)}
  ]
  is_last_cmd: F
)

===== CASE: -n -c (echo u'hi') =====


(command.Subshell
  left: <Id.Op_LParen "(">
  child: 
    (command.Simple
      blame_tok: <Id.Lit_Chars echo>
      more_env: []
      words: [
        {<Id.Lit_Chars echo>}
        {(SingleQuoted left:<Id.Left_USingleQuote "'"> sval:hi right:<Id.Right_SingleQuote "'">)}
      ]
      is_last_cmd: F
    )
  right: <Id.Right_Subshell ")">
  is_last_cmd: F
)

===== CASE: -n -c echo b'hi'trailing =====


  echo b'hi'trailing
            ^~~~~~~~
[ -c flag ]:1: Unexpected token after YSH single-quoted string

===== CASE: -n -c echo b'hi'#notcomment =====


  echo b'hi'#notcomment
            ^
[ -c flag ]:1: Unexpected token after YSH single-quoted string

===== CASE: -n -c echo 'hi'#notcomment =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [{<Id.Lit_Chars echo>} {(SQ hi) <Id.Lit_Pound "#"> <Id.Lit_Chars notcomment>}]
  is_last_cmd: F
)
OK  test-string-literals
*** Running test-type-expr

===== CASE: -n -c var x: Int = f() =====


(command.VarDecl
  keyword: <Id.KW_Var var>
  lhs: [(NameType left:<Id.Expr_Name x> name:x typ:(TypeExpr tok:<Id.Expr_Name Int> name:Int))]
  rhs: 
    (expr.FuncCall
      func: (expr.Var left:<Id.Expr_Name f> name:f)
      args: (ArgList left:<Id.Op_LParen "("> pos_args:[] named_args:[] right:<Id.Op_RParen ")">)
    )
)

===== CASE: -n -c var x Int = f() =====


(command.VarDecl
  keyword: <Id.KW_Var var>
  lhs: [(NameType left:<Id.Expr_Name x> name:x typ:(TypeExpr tok:<Id.Expr_Name Int> name:Int))]
  rhs: 
    (expr.FuncCall
      func: (expr.Var left:<Id.Expr_Name f> name:f)
      args: (ArgList left:<Id.Op_LParen "("> pos_args:[] named_args:[] right:<Id.Op_RParen ")">)
    )
)

===== CASE: -n -c proc p (; x Int, y Int; ) { echo hi } =====


(Proc
  keyword: <Id.KW_Proc proc>
  name: <Id.Lit_Chars p>
  sig: 
    (proc_sig.Closed
      positional: 
        (ParamGroup
          params: [
            (Param
              blame_tok: <Id.Expr_Name x>
              name: x
              type: (TypeExpr tok:<Id.Expr_Name Int> name:Int)
            )
            (Param
              blame_tok: <Id.Expr_Name y>
              name: y
              type: (TypeExpr tok:<Id.Expr_Name Int> name:Int)
            )
          ]
        )
    )
  body: 
    (BraceGroup
      left: <Id.Lit_LBrace "{">
      children: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars hi>}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
)

===== CASE: -n -c func f (x Int, y Int; z Int = 0) { echo hi } =====


(Func
  keyword: <Id.KW_Func func>
  name: <Id.Expr_Name f>
  positional: 
    (ParamGroup
      params: [
        (Param
          blame_tok: <Id.Expr_Name x>
          name: x
          type: (TypeExpr tok:<Id.Expr_Name Int> name:Int)
        )
        (Param
          blame_tok: <Id.Expr_Name y>
          name: y
          type: (TypeExpr tok:<Id.Expr_Name Int> name:Int)
        )
      ]
    )
  named: 
    (ParamGroup
      params: [
        (Param
          blame_tok: <Id.Expr_Name z>
          name: z
          type: (TypeExpr tok:<Id.Expr_Name Int> name:Int)
          default_val: (expr.Const c:<Id.Expr_DecInt 0> val:(value.Int i:0))
        )
      ]
    )
  body: 
    (BraceGroup
      left: <Id.Lit_LBrace "{">
      children: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars hi>}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
)
OK  test-type-expr
*** Running test-typed-proc

===== CASE: -n -c typed proc p(words) { echo hi } =====


(Proc
  keyword: <Id.KW_Proc proc>
  name: <Id.Lit_Chars p>
  sig: (proc_sig.Closed word:(ParamGroup params:[(Param blame_tok:<Id.Expr_Name words> name:words)]))
  body: 
    (BraceGroup
      left: <Id.Lit_LBrace "{">
      children: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars hi>}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
)

===== CASE: -n -c typed zzz p(words) { echo hi } =====


  typed zzz p(words) { echo hi }
        ^~~
[ -c flag ]:1: Expected 'proc' after 'typed'

===== CASE: -n -c typed p(words) { echo hi } =====


  typed p(words) { echo hi }
        ^
[ -c flag ]:1: Expected 'proc' after 'typed'
OK  test-typed-proc
*** Running test-units-suffix

===== CASE: -n -c = 100 M M =====


  = 100 M M
          ^
[ -c flag ]:1: Syntax error in expression (near Id.Expr_Name)

===== CASE: -n -c = 100 M; echo =====


  = 100 M; echo
        ^
[ -c flag ]:1: Units suffix not implemented

===== CASE: -n -c = 100 Mi; echo =====


  = 100 Mi; echo
        ^~
[ -c flag ]:1: Units suffix not implemented

===== CASE: -n -c = 9.9 Mi; echo =====


  = 9.9 Mi; echo
        ^~
[ -c flag ]:1: unix suffix implemented

===== CASE: -n -c = 9.9e-1 Mi; echo =====


  = 9.9e-1 Mi; echo
           ^~
[ -c flag ]:1: unix suffix implemented

===== CASE: -n -c = 100Mi =====


  = 100Mi
       ^~
[ -c flag ]:1: Units suffix not implemented

===== CASE: -n -c = [100 Mi, 200 Mi] =====


  = [100 Mi, 200 Mi]
         ^~
[ -c flag ]:1: Units suffix not implemented

===== CASE: -n -c = {[42 Ki]: 43 Ki} =====


  = {[42 Ki]: 43 Ki}
         ^~
[ -c flag ]:1: Units suffix not implemented
OK  test-units-suffix
*** Running test-var-decl

===== CASE: -n -c 
  proc p(x) {
    echo hi
    var x = 2  # Cannot redeclare param
  }
   =====


      var x = 2  # Cannot redeclare param
          ^
[ -c flag ]:4: 'x' was already declared

===== CASE: -n -c 
  proc p {
    var x = 1
    echo hi
    var x = 2  # Cannot redeclare local
  }
   =====


      var x = 2  # Cannot redeclare local
          ^
[ -c flag ]:5: 'x' was already declared

===== CASE: -n -c 
  proc p(x, :out) {
    var out = 2   # Cannot redeclare out param
  }
   =====


    proc p(x, :out) {
              ^
[ -c flag ]:2: Syntax error in expression (near Id.Arith_Colon)

===== CASE: -n -c 
  proc p {
    var out = 2   # Cannot redeclare out param
    cd /tmp { 
      var out = 3
    }
  }
   =====


        var out = 3
            ^~~
[ -c flag ]:5: 'out' was already declared

===== CASE: -n -c 
  var x = 1
  proc p {
    echo hi
    var x = 2
  }

  proc p2 {
    var x = 3
  }
   =====


(command.CommandList
  children: [
    (command.VarDecl
      keyword: <Id.KW_Var var>
      lhs: [(NameType left:<Id.Expr_Name x> name:x)]
      rhs: (expr.Const c:<Id.Expr_DecInt 1> val:(value.Int i:1))
    )
    (Proc
      keyword: <Id.KW_Proc proc>
      name: <Id.Lit_Chars p>
      sig: (proc_sig__Open)
      body: 
        (BraceGroup
          left: <Id.Lit_LBrace "{">
          children: [
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars hi>}]
              is_last_cmd: F
            )
            (command.VarDecl
              keyword: <Id.KW_Var var>
              lhs: [(NameType left:<Id.Expr_Name x> name:x)]
              rhs: (expr.Const c:<Id.Expr_DecInt 2> val:(value.Int i:2))
            )
          ]
          right: <Id.Lit_RBrace "}">
        )
    )
    (Proc
      keyword: <Id.KW_Proc proc>
      name: <Id.Lit_Chars p2>
      sig: ...0x7fd99d19c0d0
      body: 
        (BraceGroup
          left: <Id.Lit_LBrace "{">
          children: [
            (command.VarDecl
              keyword: <Id.KW_Var var>
              lhs: [(NameType left:<Id.Expr_Name x> name:x)]
              rhs: (expr.Const c:<Id.Expr_DecInt 3> val:(value.Int i:3))
            )
          ]
          right: <Id.Lit_RBrace "}">
        )
    )
  ]
)
OK  test-var-decl
*** Running test-ysh-case

===== CASE: -n -c 
  case (x) {
    (else) { = 1; }
  }
   =====


(command.Case
  case_kw: <Id.KW_Case case>
  to_match: (case_arg.YshExpr e:(expr.Var left:<Id.Expr_Name x> name:x))
  arms_start: <Id.Lit_LBrace "{">
  arms: [
    (CaseArm
      left: <Id.Op_LParen "(">
      pattern: (pat__Else)
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Sentence
          child: 
            (command.Expr
              keyword: <Id.Lit_Equals "=">
              e: (expr.Const c:<Id.Expr_DecInt 1> val:(value.Int i:1))
            )
          terminator: <Id.Op_Semi ";">
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
  ]
  arms_end: <Id.Lit_RBrace "}">
)

===== CASE: -n -c 
  var myexpr = ^[123]

  case (123) {
    (myexpr) { echo 1 }
  }
   =====


(command.CommandList
  children: [
    (command.VarDecl
      keyword: <Id.KW_Var var>
      lhs: [(NameType left:<Id.Expr_Name myexpr> name:myexpr)]
      rhs: (expr.Literal inner:(expr.Const c:<Id.Expr_DecInt 123> val:(value.Int i:123)))
    )
    (command.Case
      case_kw: <Id.KW_Case case>
      to_match: (case_arg.YshExpr e:(expr.Const c:<Id.Expr_DecInt 123> val:(value.Int i:123)))
      arms_start: <Id.Lit_LBrace "{">
      arms: [
        (CaseArm
          left: <Id.Op_LParen "(">
          pattern: (pat.YshExprs exprs:[(expr.Var left:<Id.Expr_Name myexpr> name:myexpr)])
          middle: <Id.Lit_LBrace "{">
          action: [
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars 1>}]
              is_last_cmd: F
            )
          ]
          right: <Id.Lit_RBrace "}">
        )
      ]
      arms_end: <Id.Lit_RBrace "}">
    )
  ]
)

===== CASE: -n -c 
  case (x) {
    (else) { echo 1 }
  }
   =====


(command.Case
  case_kw: <Id.KW_Case case>
  to_match: (case_arg.YshExpr e:(expr.Var left:<Id.Expr_Name x> name:x))
  arms_start: <Id.Lit_LBrace "{">
  arms: [
    (CaseArm
      left: <Id.Op_LParen "(">
      pattern: (pat__Else)
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars 1>}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
  ]
  arms_end: <Id.Lit_RBrace "}">
)

===== CASE: -n -c 
  case (x) {
    (else) { = 1 }
  }
   =====


(command.Case
  case_kw: <Id.KW_Case case>
  to_match: (case_arg.YshExpr e:(expr.Var left:<Id.Expr_Name x> name:x))
  arms_start: <Id.Lit_LBrace "{">
  arms: [
    (CaseArm
      left: <Id.Op_LParen "(">
      pattern: (pat__Else)
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Expr
          keyword: <Id.Lit_Equals "=">
          e: (expr.Const c:<Id.Expr_DecInt 1> val:(value.Int i:1))
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
  ]
  arms_end: <Id.Lit_RBrace "}">
)

===== CASE: -n -c 
  case (x) {
    (else) { = 1 } 
 
  }
   =====


(command.Case
  case_kw: <Id.KW_Case case>
  to_match: (case_arg.YshExpr e:(expr.Var left:<Id.Expr_Name x> name:x))
  arms_start: <Id.Lit_LBrace "{">
  arms: [
    (CaseArm
      left: <Id.Op_LParen "(">
      pattern: (pat__Else)
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Expr
          keyword: <Id.Lit_Equals "=">
          e: (expr.Const c:<Id.Expr_DecInt 1> val:(value.Int i:1))
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
  ]
  arms_end: <Id.Lit_RBrace "}">
)

===== CASE: -n -c 
  case (x) {
    (else) { = 1 }  # Comment
  }
   =====


(command.Case
  case_kw: <Id.KW_Case case>
  to_match: (case_arg.YshExpr e:(expr.Var left:<Id.Expr_Name x> name:x))
  arms_start: <Id.Lit_LBrace "{">
  arms: [
    (CaseArm
      left: <Id.Op_LParen "(">
      pattern: (pat__Else)
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Expr
          keyword: <Id.Lit_Equals "=">
          e: (expr.Const c:<Id.Expr_DecInt 1> val:(value.Int i:1))
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
  ]
  arms_end: <Id.Lit_RBrace "}">
)

===== CASE: -n -c 
  case (3) {
    (3) { echo hi }
    # comment line
  }
   =====


(command.Case
  case_kw: <Id.KW_Case case>
  to_match: (case_arg.YshExpr e:(expr.Const c:<Id.Expr_DecInt 3> val:(value.Int i:3)))
  arms_start: <Id.Lit_LBrace "{">
  arms: [
    (CaseArm
      left: <Id.Op_LParen "(">
      pattern: (pat.YshExprs exprs:[(expr.Const c:<Id.Expr_DecInt 3> val:(value.Int i:3))])
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars hi>}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
  ]
  arms_end: <Id.Lit_RBrace "}">
)

===== CASE: -n -c 
  case (x) {
    (else) { echo 1 } 
  }
   =====


(command.Case
  case_kw: <Id.KW_Case case>
  to_match: (case_arg.YshExpr e:(expr.Var left:<Id.Expr_Name x> name:x))
  arms_start: <Id.Lit_LBrace "{">
  arms: [
    (CaseArm
      left: <Id.Op_LParen "(">
      pattern: (pat__Else)
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars 1>}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
  ]
  arms_end: <Id.Lit_RBrace "}">
)

===== CASE: -n -c 
  case (foo) { (else) { echo } }
   =====


(command.Case
  case_kw: <Id.KW_Case case>
  to_match: (case_arg.YshExpr e:(expr.Var left:<Id.Expr_Name foo> name:foo))
  arms_start: <Id.Lit_LBrace "{">
  arms: [
    (CaseArm
      left: <Id.Op_LParen "(">
      pattern: (pat__Else)
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
  ]
  arms_end: <Id.Lit_RBrace "}">
)

===== CASE: -n -c 
  case (foo) {
    *.py { echo "python" }
  }
   =====


(command.Case
  case_kw: <Id.KW_Case case>
  to_match: (case_arg.YshExpr e:(expr.Var left:<Id.Expr_Name foo> name:foo))
  arms_start: <Id.Lit_LBrace "{">
  arms: [
    (CaseArm
      left: <Id.Lit_Star "*">
      pattern: (pat.Words words:[{<Id.Lit_Star "*"> <Id.Lit_Chars .py>}])
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {(DQ <Id.Lit_Chars python>)}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
  ]
  arms_end: <Id.Lit_RBrace "}">
)

===== CASE: -n -c 
  case (foo) {
    (obj.attr) { echo "python" }
  }
   =====


(command.Case
  case_kw: <Id.KW_Case case>
  to_match: (case_arg.YshExpr e:(expr.Var left:<Id.Expr_Name foo> name:foo))
  arms_start: <Id.Lit_LBrace "{">
  arms: [
    (CaseArm
      left: <Id.Op_LParen "(">
      pattern: 
        (pat.YshExprs
          exprs: [
            (Attribute
              obj: (expr.Var left:<Id.Expr_Name obj> name:obj)
              op: <Id.Expr_Dot .>
              attr: <Id.Expr_Name attr>
              attr_name: attr
              ctx: expr_context.Store
            )
          ]
        )
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {(DQ <Id.Lit_Chars python>)}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
  ]
  arms_end: <Id.Lit_RBrace "}">
)

===== CASE: -n -c 
  case (foo) {
    (0) { echo "python" }
  }
   =====


(command.Case
  case_kw: <Id.KW_Case case>
  to_match: (case_arg.YshExpr e:(expr.Var left:<Id.Expr_Name foo> name:foo))
  arms_start: <Id.Lit_LBrace "{">
  arms: [
    (CaseArm
      left: <Id.Op_LParen "(">
      pattern: (pat.YshExprs exprs:[(expr.Const c:<Id.Expr_DecInt 0> val:(value.Int i:0))])
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {(DQ <Id.Lit_Chars python>)}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
  ]
  arms_end: <Id.Lit_RBrace "}">
)

===== CASE: -n -c 
  case (foo) {
    ("main.py") { echo "python" }
  }
   =====


(command.Case
  case_kw: <Id.KW_Case case>
  to_match: (case_arg.YshExpr e:(expr.Var left:<Id.Expr_Name foo> name:foo))
  arms_start: <Id.Lit_LBrace "{">
  arms: [
    (CaseArm
      left: <Id.Op_LParen "(">
      pattern: (pat.YshExprs exprs:[(DQ <Id.Lit_Chars main.py>)])
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {(DQ <Id.Lit_Chars python>)}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
  ]
  arms_end: <Id.Lit_RBrace "}">
)

===== CASE: -n -c 
  case (foo) { ("main.py") { echo "python" } }
   =====


(command.Case
  case_kw: <Id.KW_Case case>
  to_match: (case_arg.YshExpr e:(expr.Var left:<Id.Expr_Name foo> name:foo))
  arms_start: <Id.Lit_LBrace "{">
  arms: [
    (CaseArm
      left: <Id.Op_LParen "(">
      pattern: (pat.YshExprs exprs:[(DQ <Id.Lit_Chars main.py>)])
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {(DQ <Id.Lit_Chars python>)}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
  ]
  arms_end: <Id.Lit_RBrace "}">
)

===== CASE: -n -c 
  case (foo) {
    ("main.py") {
      echo "python" } } =====


(command.Case
  case_kw: <Id.KW_Case case>
  to_match: (case_arg.YshExpr e:(expr.Var left:<Id.Expr_Name foo> name:foo))
  arms_start: <Id.Lit_LBrace "{">
  arms: [
    (CaseArm
      left: <Id.Op_LParen "(">
      pattern: (pat.YshExprs exprs:[(DQ <Id.Lit_Chars main.py>)])
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {(DQ <Id.Lit_Chars python>)}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
  ]
  arms_end: <Id.Lit_RBrace "}">
)

===== CASE: -n -c 
  case (foo) {
    ("main.py") {
      echo "python" }
  }
   =====


(command.Case
  case_kw: <Id.KW_Case case>
  to_match: (case_arg.YshExpr e:(expr.Var left:<Id.Expr_Name foo> name:foo))
  arms_start: <Id.Lit_LBrace "{">
  arms: [
    (CaseArm
      left: <Id.Op_LParen "(">
      pattern: (pat.YshExprs exprs:[(DQ <Id.Lit_Chars main.py>)])
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {(DQ <Id.Lit_Chars python>)}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
  ]
  arms_end: <Id.Lit_RBrace "}">
)

===== CASE: -n -c 
  case (foo) {
    ("main.py") { echo "python"
    }
  }
   =====


(command.Case
  case_kw: <Id.KW_Case case>
  to_match: (case_arg.YshExpr e:(expr.Var left:<Id.Expr_Name foo> name:foo))
  arms_start: <Id.Lit_LBrace "{">
  arms: [
    (CaseArm
      left: <Id.Op_LParen "(">
      pattern: (pat.YshExprs exprs:[(DQ <Id.Lit_Chars main.py>)])
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {(DQ <Id.Lit_Chars python>)}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
  ]
  arms_end: <Id.Lit_RBrace "}">
)

===== CASE: -n -c 
  case (foo) {
    ("main.py") {
      echo "python"
    }
  }
   =====


(command.Case
  case_kw: <Id.KW_Case case>
  to_match: (case_arg.YshExpr e:(expr.Var left:<Id.Expr_Name foo> name:foo))
  arms_start: <Id.Lit_LBrace "{">
  arms: [
    (CaseArm
      left: <Id.Op_LParen "(">
      pattern: (pat.YshExprs exprs:[(DQ <Id.Lit_Chars main.py>)])
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {(DQ <Id.Lit_Chars python>)}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
  ]
  arms_end: <Id.Lit_RBrace "}">
)

===== CASE: -n -c 
  case (add(10, 32)) {
    (40 + 2) { echo Found the answer }
    (else) { echo Incorrect
    }
  }
   =====


(command.Case
  case_kw: <Id.KW_Case case>
  to_match: 
    (case_arg.YshExpr
      e: 
        (expr.FuncCall
          func: (expr.Var left:<Id.Expr_Name add> name:add)
          args: 
            (ArgList
              left: <Id.Op_LParen "(">
              pos_args: [
                (expr.Const c:<Id.Expr_DecInt 10> val:(value.Int i:10))
                (expr.Const c:<Id.Expr_DecInt 32> val:(value.Int i:32))
              ]
              named_args: []
              right: <Id.Op_RParen ")">
            )
        )
    )
  arms_start: <Id.Lit_LBrace "{">
  arms: [
    (CaseArm
      left: <Id.Op_LParen "(">
      pattern: 
        (pat.YshExprs
          exprs: [
            (expr.Binary
              op: <Id.Arith_Plus "+">
              left: (expr.Const c:<Id.Expr_DecInt 40> val:(value.Int i:40))
              right: (expr.Const c:<Id.Expr_DecInt 2> val:(value.Int i:2))
            )
          ]
        )
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [
            {<Id.Lit_Chars echo>}
            {<Id.Lit_Chars Found>}
            {<Id.Lit_Chars the>}
            {<Id.Lit_Chars answer>}
          ]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
    (CaseArm
      left: <Id.Op_LParen "(">
      pattern: (pat__Else)
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars Incorrect>}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
  ]
  arms_end: <Id.Lit_RBrace "}">
)

===== CASE: -n -c 
  case (file) {
    / dot* '.py' / {
      echo Python
    }

    / dot* ('.cc' | '.h') /
    {
      echo C++
    }
  }
   =====


(command.Case
  case_kw: <Id.KW_Case case>
  to_match: (case_arg.YshExpr e:(expr.Var left:<Id.Expr_Name file> name:file))
  arms_start: <Id.Lit_LBrace "{">
  arms: [
    (CaseArm
      left: <Id.Arith_Slash />
      pattern: 
        (Eggex
          left: <Id.Arith_Slash />
          regex: 
            (re.Seq
              children: [
                (re.Repeat
                  child: (re.Primitive blame_tok:<Id.Expr_Name dot> id:Id.Eggex_Dot)
                  op: <Id.Arith_Star "*">
                )
                (SQ .py)
              ]
            )
          flags: []
          canonical_flags: ""
        )
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars Python>}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
    (CaseArm
      left: <Id.Arith_Slash />
      pattern: 
        (Eggex
          left: <Id.Arith_Slash />
          regex: 
            (re.Seq
              children: [
                (re.Repeat
                  child: (re.Primitive blame_tok:<Id.Expr_Name dot> id:Id.Eggex_Dot)
                  op: <Id.Arith_Star "*">
                )
                (re.Group child:(re.Alt children:[(SQ .cc) (SQ .h)]))
              ]
            )
          flags: []
          canonical_flags: ""
        )
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars C> <Id.Lit_Other "+"> <Id.Lit_Other "+">}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
  ]
  arms_end: <Id.Lit_RBrace "}">
)

===== CASE: -n -c 
  case (lang) {
      en-US
    | en-CA
    | en-UK {
      echo Hello
    }
    fr-FR |
    fr-CA {
      echo Bonjour
    }





    (else) {
      echo o/
    }
  }
   =====


(command.Case
  case_kw: <Id.KW_Case case>
  to_match: (case_arg.YshExpr e:(expr.Var left:<Id.Expr_Name lang> name:lang))
  arms_start: <Id.Lit_LBrace "{">
  arms: [
    (CaseArm
      left: <Id.Lit_Chars en-US>
      pattern: 
        (pat.Words
          words: [{<Id.Lit_Chars en-US>} {<Id.Lit_Chars en-CA>} {<Id.Lit_Chars en-UK>}]
        )
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars Hello>}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
    (CaseArm
      left: <Id.Lit_Chars fr-FR>
      pattern: (pat.Words words:[{<Id.Lit_Chars fr-FR>} {<Id.Lit_Chars fr-CA>}])
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars Bonjour>}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
    (CaseArm
      left: <Id.Op_LParen "(">
      pattern: (pat__Else)
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars o> <Id.Lit_Slash />}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
  ]
  arms_end: <Id.Lit_RBrace "}">
)

===== CASE: -n -c 
  case (num) {
    (1) | (2) {
      echo number
    }
  }
   =====


(command.Case
  case_kw: <Id.KW_Case case>
  to_match: (case_arg.YshExpr e:(expr.Var left:<Id.Expr_Name num> name:num))
  arms_start: <Id.Lit_LBrace "{">
  arms: [
    (CaseArm
      left: <Id.Op_LParen "(">
      pattern: 
        (pat.YshExprs
          exprs: [
            (expr.Const c:<Id.Expr_DecInt 1> val:(value.Int i:1))
            (expr.Const c:<Id.Expr_DecInt 2> val:(value.Int i:2))
          ]
        )
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars number>}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
  ]
  arms_end: <Id.Lit_RBrace "}">
)

===== CASE: -n -c 
  case (num) {
      (1) | (2) | (3)
    | (4) | (5) {
      echo small
    }

    (else) {
      echo large
    }
  }
   =====


(command.Case
  case_kw: <Id.KW_Case case>
  to_match: (case_arg.YshExpr e:(expr.Var left:<Id.Expr_Name num> name:num))
  arms_start: <Id.Lit_LBrace "{">
  arms: [
    (CaseArm
      left: <Id.Op_LParen "(">
      pattern: 
        (pat.YshExprs
          exprs: [
            (expr.Const c:<Id.Expr_DecInt 1> val:(value.Int i:1))
            (expr.Const c:<Id.Expr_DecInt 2> val:(value.Int i:2))
            (expr.Const c:<Id.Expr_DecInt 3> val:(value.Int i:3))
            (expr.Const c:<Id.Expr_DecInt 4> val:(value.Int i:4))
            (expr.Const c:<Id.Expr_DecInt 5> val:(value.Int i:5))
          ]
        )
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars small>}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
    (CaseArm
      left: <Id.Op_LParen "(">
      pattern: (pat__Else)
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars large>}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
  ]
  arms_end: <Id.Lit_RBrace "}">
)

===== CASE: -n -c 
  case
  (add(10, 32)) {
      (40 + 2) { echo Found the answer }
      (else) { echo Incorrect }
  }
   =====


    case
        ^
[ -c flag ]:2: Expected a word to match against

===== CASE: -n -c 
  case (file)
  {
    ('README') | / dot* '.md' / { echo Markdown }
  }
   =====


    case (file)
               ^
[ -c flag ]:2: Expected word type Id.Lit_LBrace, got Id.Op_Newline

===== CASE: -n -c 
  case (file)
  {
    {
      echo Python
    }
  }
   =====


    case (file)
               ^
[ -c flag ]:2: Expected word type Id.Lit_LBrace, got Id.Op_Newline

===== CASE: -n -c 
  case (file)
  {
    cc h {
      echo C++
    }
  }
   =====


    case (file)
               ^
[ -c flag ]:2: Expected word type Id.Lit_LBrace, got Id.Op_Newline

===== CASE: -n -c 
  case (lang) {
      en-US
    | ('en-CA')
    | / 'en-UK' / {
      echo Hello
    }
  }
   =====


      | ('en-CA')
        ^
[ -c flag ]:4: Expected case pattern

===== CASE: -n -c 
  case (lang) {
    else) {
      echo o/
    }
  }
   =====


      else) {
          ^
[ -c flag ]:3: Expected word type Id.Lit_LBrace, got Id.Op_RParen

===== CASE: -n -c 
  case (num) {
      (1) | (2) | (3)
    | (4) | (5) {
      echo small
    }

    (6) | (else) {
      echo large
    }
  }
   =====


      (6) | (else) {
             ^~~~
[ -c flag ]:8: Syntax error in expression (near Id.Expr_Else)

===== CASE: -n -c 
  case $foo {
    ("main.py") {
      echo "python"
    }
  }
   =====


    case $foo {
              ^
[ -c flag ]:2: Expected word type Id.KW_In, got Id.Lit_LBrace

===== CASE: -n -c 
  case (x)
  {
    *.py { echo "python" }
  }
   =====


    case (x)
            ^
[ -c flag ]:2: Expected word type Id.Lit_LBrace, got Id.Op_Newline

===== CASE: -n -c 
  case (foo) in
    *.py {
      echo "python"
    }
  esac
   =====


    case (foo) in
               ^~
[ -c flag ]:2: Expected word type Id.Lit_LBrace, got Id.KW_In

===== CASE: -n -c 
  case $foo {
    bar) {
      echo "python"
    }
  }
   =====


    case $foo {
              ^
[ -c flag ]:2: Expected word type Id.KW_In, got Id.Lit_LBrace

===== CASE: -n -c 
  case (x) {
    {
      echo "python"
    }
  }
   =====


        echo "python"
        ^~~~
[ -c flag ]:4: Expected word type Id.Lit_LBrace, got Id.Word_Compound

===== CASE: -n -c 
  case (x {
    *.py { echo "python" }
  }
   =====


    case (x {
            ^
[ -c flag ]:2: Syntax error in expression (near Id.Op_LBrace)

===== CASE: -n -c 
  case (x) {
    *.py) { echo "python" }
  }
   =====


      *.py) { echo "python" }
          ^
[ -c flag ]:3: Expected word type Id.Lit_LBrace, got Id.Op_RParen

===== CASE: -n -c case (x) { word { echo word; } (3) { echo expr; } /'eggex'/ { echo eggex; } } =====


(command.Case
  case_kw: <Id.KW_Case case>
  to_match: (case_arg.YshExpr e:(expr.Var left:<Id.Expr_Name x> name:x))
  arms_start: <Id.Lit_LBrace "{">
  arms: [
    (CaseArm
      left: <Id.Lit_Chars word>
      pattern: (pat.Words words:[{<Id.Lit_Chars word>}])
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars word>}]
              is_last_cmd: F
            )
          terminator: <Id.Op_Semi ";">
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
    (CaseArm
      left: <Id.Op_LParen "(">
      pattern: (pat.YshExprs exprs:[(expr.Const c:<Id.Expr_DecInt 3> val:(value.Int i:3))])
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars expr>}]
              is_last_cmd: F
            )
          terminator: <Id.Op_Semi ";">
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
    (CaseArm
      left: <Id.Arith_Slash />
      pattern: (Eggex left:<Id.Arith_Slash /> regex:(SQ eggex) flags:[] canonical_flags:"")
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars eggex>}]
              is_last_cmd: F
            )
          terminator: <Id.Op_Semi ";">
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
  ]
  arms_end: <Id.Lit_RBrace "}">
)

===== CASE: -n -c 
case (x) {
  word    { echo word; } (3)     { echo expr; } /'eggex'/ { echo eggex; } } =====


(command.Case
  case_kw: <Id.KW_Case case>
  to_match: (case_arg.YshExpr e:(expr.Var left:<Id.Expr_Name x> name:x))
  arms_start: <Id.Lit_LBrace "{">
  arms: [
    (CaseArm
      left: <Id.Lit_Chars word>
      pattern: (pat.Words words:[{<Id.Lit_Chars word>}])
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars word>}]
              is_last_cmd: F
            )
          terminator: <Id.Op_Semi ";">
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
    (CaseArm
      left: <Id.Op_LParen "(">
      pattern: (pat.YshExprs exprs:[(expr.Const c:<Id.Expr_DecInt 3> val:(value.Int i:3))])
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars expr>}]
              is_last_cmd: F
            )
          terminator: <Id.Op_Semi ";">
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
    (CaseArm
      left: <Id.Arith_Slash />
      pattern: (Eggex left:<Id.Arith_Slash /> regex:(SQ eggex) flags:[] canonical_flags:"")
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars eggex>}]
              is_last_cmd: F
            )
          terminator: <Id.Op_Semi ";">
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
  ]
  arms_end: <Id.Lit_RBrace "}">
)

===== CASE: -n -c 
case (x) {
  word    { echo word; }
  (3)     { echo expr; } /'eggex'/ { echo eggex; } } =====


(command.Case
  case_kw: <Id.KW_Case case>
  to_match: (case_arg.YshExpr e:(expr.Var left:<Id.Expr_Name x> name:x))
  arms_start: <Id.Lit_LBrace "{">
  arms: [
    (CaseArm
      left: <Id.Lit_Chars word>
      pattern: (pat.Words words:[{<Id.Lit_Chars word>}])
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars word>}]
              is_last_cmd: F
            )
          terminator: <Id.Op_Semi ";">
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
    (CaseArm
      left: <Id.Op_LParen "(">
      pattern: (pat.YshExprs exprs:[(expr.Const c:<Id.Expr_DecInt 3> val:(value.Int i:3))])
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars expr>}]
              is_last_cmd: F
            )
          terminator: <Id.Op_Semi ";">
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
    (CaseArm
      left: <Id.Arith_Slash />
      pattern: (Eggex left:<Id.Arith_Slash /> regex:(SQ eggex) flags:[] canonical_flags:"")
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars eggex>}]
              is_last_cmd: F
            )
          terminator: <Id.Op_Semi ";">
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
  ]
  arms_end: <Id.Lit_RBrace "}">
)

===== CASE: -n -c 
case (x) {
  word    { echo word; }
  (3)     { echo expr; }
  /'eggex'/ { echo eggex; } } =====


(command.Case
  case_kw: <Id.KW_Case case>
  to_match: (case_arg.YshExpr e:(expr.Var left:<Id.Expr_Name x> name:x))
  arms_start: <Id.Lit_LBrace "{">
  arms: [
    (CaseArm
      left: <Id.Lit_Chars word>
      pattern: (pat.Words words:[{<Id.Lit_Chars word>}])
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars word>}]
              is_last_cmd: F
            )
          terminator: <Id.Op_Semi ";">
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
    (CaseArm
      left: <Id.Op_LParen "(">
      pattern: (pat.YshExprs exprs:[(expr.Const c:<Id.Expr_DecInt 3> val:(value.Int i:3))])
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars expr>}]
              is_last_cmd: F
            )
          terminator: <Id.Op_Semi ";">
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
    (CaseArm
      left: <Id.Arith_Slash />
      pattern: (Eggex left:<Id.Arith_Slash /> regex:(SQ eggex) flags:[] canonical_flags:"")
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars eggex>}]
              is_last_cmd: F
            )
          terminator: <Id.Op_Semi ";">
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
  ]
  arms_end: <Id.Lit_RBrace "}">
)

===== CASE: -n -c 
case (x) {
  word    { echo word; }
  (3)     { echo expr; }
  /'eggex'/ { echo eggex; }
} =====


(command.Case
  case_kw: <Id.KW_Case case>
  to_match: (case_arg.YshExpr e:(expr.Var left:<Id.Expr_Name x> name:x))
  arms_start: <Id.Lit_LBrace "{">
  arms: [
    (CaseArm
      left: <Id.Lit_Chars word>
      pattern: (pat.Words words:[{<Id.Lit_Chars word>}])
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars word>}]
              is_last_cmd: F
            )
          terminator: <Id.Op_Semi ";">
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
    (CaseArm
      left: <Id.Op_LParen "(">
      pattern: (pat.YshExprs exprs:[(expr.Const c:<Id.Expr_DecInt 3> val:(value.Int i:3))])
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars expr>}]
              is_last_cmd: F
            )
          terminator: <Id.Op_Semi ";">
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
    (CaseArm
      left: <Id.Arith_Slash />
      pattern: (Eggex left:<Id.Arith_Slash /> regex:(SQ eggex) flags:[] canonical_flags:"")
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars eggex>}]
              is_last_cmd: F
            )
          terminator: <Id.Op_Semi ";">
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
  ]
  arms_end: <Id.Lit_RBrace "}">
)

===== CASE: -n -c 
case (x) {
word    { echo word; }
(3)     { echo expr; }
/'eggex'/ { echo eggex; }
} =====


(command.Case
  case_kw: <Id.KW_Case case>
  to_match: (case_arg.YshExpr e:(expr.Var left:<Id.Expr_Name x> name:x))
  arms_start: <Id.Lit_LBrace "{">
  arms: [
    (CaseArm
      left: <Id.Lit_Chars word>
      pattern: (pat.Words words:[{<Id.Lit_Chars word>}])
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars word>}]
              is_last_cmd: F
            )
          terminator: <Id.Op_Semi ";">
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
    (CaseArm
      left: <Id.Op_LParen "(">
      pattern: (pat.YshExprs exprs:[(expr.Const c:<Id.Expr_DecInt 3> val:(value.Int i:3))])
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars expr>}]
              is_last_cmd: F
            )
          terminator: <Id.Op_Semi ";">
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
    (CaseArm
      left: <Id.Arith_Slash />
      pattern: (Eggex left:<Id.Arith_Slash /> regex:(SQ eggex) flags:[] canonical_flags:"")
      middle: <Id.Lit_LBrace "{">
      action: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars eggex>}]
              is_last_cmd: F
            )
          terminator: <Id.Op_Semi ";">
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
  ]
  arms_end: <Id.Lit_RBrace "}">
)
OK  test-ysh-case
*** Running test-ysh-expr

===== CASE: -n -c = 5 mod 3 =====


  = 5 mod 3
          ^
[ -c flag ]:1: Syntax error in expression (near Id.Expr_DecInt)

===== CASE: -n -c = >>= =====


  = >>=
    ^~~
[ -c flag ]:1: Syntax error in expression (near Id.Arith_DGreatEqual)

===== CASE: -n -c = %( =====


  = %(
      ^
[ -c flag ]:1: Unexpected token in array literal

===== CASE: -n -c = 42, =====


  = 42,
      ^
[ -c flag ]:1: Invalid trailing comma

===== CASE: -n -c = (42,) =====


  = (42,)
       ^
[ -c flag ]:1: Invalid trailing comma

===== CASE: -n -c =a =====


  =a
  ^
[ -c flag ]:1: =word isn't allowed.  Hint: add a space after =, or quote it

===== CASE: -n -c 
    var d = {}
    = d["foo", "bar"]
   =====


      = d["foo", "bar"]
               ^
[ -c flag ]:3: Only 1 subscript is accepted
OK  test-ysh-expr
*** Running test-ysh-expr-more

===== CASE: -n -c if (5 == 5) { echo yes } =====


  if (5 == 5) { echo yes }
        ^~
[ -c flag ]:1: Use === to be exact, or ~== to convert types

===== CASE: -n -c echo $[join(x)] =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [
    {<Id.Lit_Chars echo>}
    {
      (word_part.ExprSub
        left: <Id.Left_DollarBracket "$[">
        child: 
          (expr.FuncCall
            func: (expr.Var left:<Id.Expr_Name join> name:join)
            args: 
              (ArgList
                left: <Id.Op_LParen "(">
                pos_args: [(expr.Var left:<Id.Expr_Name x> name:x)]
                named_args: []
                right: <Id.Op_RParen ")">
              )
          )
        right: <Id.Op_RBracket "]">
      )
    }
  ]
  is_last_cmd: F
)

===== CASE: -n -c echo $join(x) =====


  echo $join(x)
            ^
[ -c flag ]:1: Space required before (

===== CASE: -n -c echo @[split(x)] =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [
    {<Id.Lit_Chars echo>}
    {
      (word_part.ExprSub
        left: <Id.Lit_AtLBracket "@[">
        child: 
          (expr.FuncCall
            func: (expr.Var left:<Id.Expr_Name split> name:split)
            args: 
              (ArgList
                left: <Id.Op_LParen "(">
                pos_args: [(expr.Var left:<Id.Expr_Name x> name:x)]
                named_args: []
                right: <Id.Op_RParen ")">
              )
          )
        right: <Id.Op_RBracket "]">
      )
    }
  ]
  is_last_cmd: F
)

===== CASE: -n -c echo @[split(x)] two =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [
    {<Id.Lit_Chars echo>}
    {
      (word_part.ExprSub
        left: <Id.Lit_AtLBracket "@[">
        child: 
          (expr.FuncCall
            func: (expr.Var left:<Id.Expr_Name split> name:split)
            args: 
              (ArgList
                left: <Id.Op_LParen "(">
                pos_args: [(expr.Var left:<Id.Expr_Name x> name:x)]
                named_args: []
                right: <Id.Op_RParen ")">
              )
          )
        right: <Id.Op_RBracket "]">
      )
    }
    {<Id.Lit_Chars two>}
  ]
  is_last_cmd: F
)

===== CASE: -n -c echo @[split(x)]extra =====


  echo @[split(x)]extra
                  ^~~~~
[ -c flag ]:1: Unexpected token after Expr splice

===== CASE: -n -c echo @split("a") =====


  echo @split("a")
             ^
[ -c flag ]:1: Space required before (
OK  test-ysh-expr-more
*** Running test-ysh-for

===== CASE: -n -c 
  for x in (obj) {
    echo $x
  }
   =====


(command.ForEach
  keyword: <Id.KW_For for>
  iter_names: [x]
  iterable: (for_iter.YshExpr e:(expr.Var left:<Id.Expr_Name obj> name:obj) blame:<Id.KW_In in>)
  body: 
    (BraceGroup
      left: <Id.Lit_LBrace "{">
      children: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {($ x)}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
)

===== CASE: -n -c 
  for x in (obj); do
    echo $x
  done
   =====


    for x in (obj); do
                  ^
[ -c flag ]:2: Expected { after iterable expression

===== CASE: -n -c 
  for x, y in SPAM EGGS; do
    echo $x
  done
   =====


(command.ForEach
  keyword: <Id.KW_For for>
  iter_names: [x y]
  iterable: (for_iter.Words words:[{<Id.Lit_Chars SPAM>} {<Id.Lit_Chars EGGS>}])
  semi_tok: <Id.Op_Semi ";">
  body: 
    (command.DoGroup
      left: <Id.KW_Do do>
      children: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {($ x)}]
          is_last_cmd: F
        )
      ]
      right: <Id.KW_Done done>
    )
)

===== CASE: -n -c 
  for x-y in SPAM EGGS; do
    echo $x
  done
   =====


    for x-y in SPAM EGGS; do
        ^~~
[ -c flag ]:2: Invalid loop variable name 'x-y'

===== CASE: -n -c 
  for x, y, z in SPAM EGGS; do
    echo $x
  done
   =====


    for x, y, z in SPAM EGGS; do
    ^~~
[ -c flag ]:2: Expected at most 2 loop variables

===== CASE: -n -c 
  for w, x, y, z in SPAM EGGS; do
    echo $x
  done
   =====


    for w, x, y, z in SPAM EGGS; do
                 ^
[ -c flag ]:2: Unexpected word after 3 loop variables

===== CASE: -n -c 
  for x, y in SPAM EGGS
  do
    echo $x
  done
   =====


(command.ForEach
  keyword: <Id.KW_For for>
  iter_names: [x y]
  iterable: (for_iter.Words words:[{<Id.Lit_Chars SPAM>} {<Id.Lit_Chars EGGS>}])
  body: 
    (command.DoGroup
      left: <Id.KW_Do do>
      children: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {($ x)}]
          is_last_cmd: F
        )
      ]
      right: <Id.KW_Done done>
    )
)

===== CASE: -n -c for const in (x) { echo $var } =====


(command.ForEach
  keyword: <Id.KW_For for>
  iter_names: [const]
  iterable: (for_iter.YshExpr e:(expr.Var left:<Id.Expr_Name x> name:x) blame:<Id.KW_In in>)
  body: 
    (BraceGroup
      left: <Id.Lit_LBrace "{">
      children: [
        (command.Simple
          blame_tok: <Id.Lit_Chars echo>
          more_env: []
          words: [{<Id.Lit_Chars echo>} {($ var)}]
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
)
OK  test-ysh-for
*** Running test-ysh-nested-proc-func

===== CASE: -n -c proc p { echo 1; proc f { echo f }; echo 2 } =====


  proc p { echo 1; proc f { echo f }; echo 2 }
                   ^~~~
[ -c flag ]:1: procs must be defined at the top level

===== CASE: -n -c func f() { echo 1; proc f { echo f }; echo 2 } =====


  func f() { echo 1; proc f { echo f }; echo 2 }
                     ^~~~
[ -c flag ]:1: procs must be defined at the top level

===== CASE: -n -c proc p { echo 1; func f() { echo f }; echo 2 } =====


  proc p { echo 1; func f() { echo f }; echo 2 }
                   ^~~~
[ -c flag ]:1: funcs must be defined at the top level

===== CASE: -n -c func f() { echo 1; func f2() { echo f }; echo 2 } =====


  func f() { echo 1; func f2() { echo f }; echo 2 }
                     ^~~~
[ -c flag ]:1: funcs must be defined at the top level

===== CASE: -n -c proc p { echo 1; +weird() { echo f; }; echo 2 } =====


  proc p { echo 1; +weird() { echo f; }; echo 2 }
                   ^
[ -c flag ]:1: shell functions can't be defined inside proc or func

===== CASE: -n -c proc p { echo 1; function f { echo f; }; echo 2 } =====


  proc p { echo 1; function f { echo f; }; echo 2 }
                   ^~~~~~~~
[ -c flag ]:1: shell functions can't be defined inside proc or func

===== CASE: -n -c f() { echo 1; proc inner { echo inner; }; echo 2; } =====


  f() { echo 1; proc inner { echo inner; }; echo 2; }
                ^~~~
[ -c flag ]:1: procs must be defined at the top level

===== CASE: -n -c f() { echo 1; g() { echo g; }; echo 2; } =====


(command.ShFunction
  name_tok: <Id.Lit_Chars f>
  name: f
  body: 
    (BraceGroup
      left: <Id.Lit_LBrace "{">
      children: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars 1>}]
              is_last_cmd: F
            )
          terminator: <Id.Op_Semi ";">
        )
        (command.Sentence
          child: 
            (command.ShFunction
              name_tok: <Id.Lit_Chars g>
              name: g
              body: 
                (BraceGroup
                  left: <Id.Lit_LBrace "{">
                  children: [
                    (command.Sentence
                      child: 
                        (command.Simple
                          blame_tok: <Id.Lit_Chars echo>
                          more_env: []
                          words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars g>}]
                          is_last_cmd: F
                        )
                      terminator: <Id.Op_Semi ";">
                    )
                  ]
                  right: <Id.Lit_RBrace "}">
                )
            )
          terminator: <Id.Op_Semi ";">
        )
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars 2>}]
              is_last_cmd: F
            )
          terminator: <Id.Op_Semi ";">
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
)

===== CASE: -n -c proc p() { shopt --unset errexit { false hi } } =====


(Proc
  keyword: <Id.KW_Proc proc>
  name: <Id.Lit_Chars p>
  sig: (proc_sig.Closed)
  body: 
    (BraceGroup
      left: <Id.Lit_LBrace "{">
      children: [
        (command.Simple
          blame_tok: <Id.Lit_Chars shopt>
          more_env: []
          words: [{<Id.Lit_Chars shopt>} {<Id.Lit_Chars --unset>} {<Id.Lit_Chars errexit>}]
          block: 
            (LiteralBlock
              brace_group: 
                (BraceGroup
                  left: <Id.Lit_LBrace "{">
                  children: [
                    (command.Simple
                      blame_tok: <Id.Lit_Chars "false">
                      more_env: []
                      words: [{<Id.Lit_Chars "false">} {<Id.Lit_Chars hi>}]
                      is_last_cmd: F
                    )
                  ]
                  right: <Id.Lit_RBrace "}">
                )
              lines: [
                (SourceLine
                  line_num: 1
                  content: "proc p() { shopt --unset errexit { false hi } }"
                  src: (source__CFlag)
                )
              ]
            )
          is_last_cmd: F
        )
      ]
      right: <Id.Lit_RBrace "}">
    )
)
OK  test-ysh-nested-proc-func
*** Running test-ysh-var

===== CASE: -n -c var x = 1 +  =====


  var x = 1 +
              ^
[ -c flag ]:1: Syntax error in expression (near Id.Eof_Real)

===== CASE: -n -c var x = *  =====


  var x = *
          ^
[ -c flag ]:1: Syntax error in expression (near Id.Arith_Star)

===== CASE: -n -c var x = @($(cat <<EOF
here doc
EOF
)) =====


  var x = @($(cat <<EOF
          ^~
[ -c flag ]:1: Here docs aren't allowed in expressions

===== CASE: -n -c var x = $(var x = 1; ) =====


(command.VarDecl
  keyword: <Id.KW_Var var>
  lhs: [(NameType left:<Id.Expr_Name x> name:x)]
  rhs: 
    (CommandSub
      left_token: <Id.Left_DollarParen "$(">
      child: 
        (command.Sentence
          child: 
            (command.VarDecl
              keyword: <Id.KW_Var var>
              lhs: [(NameType left:<Id.Expr_Name x> name:x)]
              rhs: (expr.Const c:<Id.Expr_DecInt 1> val:(value.Int i:1))
            )
          terminator: <Id.Op_Semi ";">
        )
      right: <Id.Eof_RParen ")">
    )
)

===== CASE: -n -c 
  var x = $(var x = 1
) =====


(command.VarDecl
  keyword: <Id.KW_Var var>
  lhs: [(NameType left:<Id.Expr_Name x> name:x)]
  rhs: 
    (CommandSub
      left_token: <Id.Left_DollarParen "$(">
      child: 
        (command.VarDecl
          keyword: <Id.KW_Var var>
          lhs: [(NameType left:<Id.Expr_Name x> name:x)]
          rhs: (expr.Const c:<Id.Expr_DecInt 1> val:(value.Int i:1))
        )
      right: <Id.Eof_RParen ")">
    )
)

===== CASE: -n -c var x = $(var x = 1) =====


  var x = $(var x = 1)
                     ^
[ -c flag ]:1: Syntax error in expression (near Id.Eof_RParen)

===== CASE: -n -c var x = $(var x = 1; )) =====


  var x = $(var x = 1; ))
                        ^
[ -c flag ]:1: Syntax error in expression (near Id.Op_RParen)

===== CASE: -n -c var x = $(var x = 1; ) ) =====


  var x = $(var x = 1; ) )
                         ^
[ -c flag ]:1: Syntax error in expression (near Id.Op_RParen)
OK  test-ysh-var
*** Running test-ysh_bare_words

===== CASE: -n -c echo \$ =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [{<Id.Lit_Chars echo>} {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar "\\$"> ch:"$")}]
  is_last_cmd: F
)

===== CASE: -n -c echo \z =====


  echo \z
       ^~
[ -c flag ]:1: Invalid char escape in unquoted word (OILS-ERR-13)
OK  test-ysh_bare_words
*** Running test-ysh_c_strings

===== CASE: -n -c echo $'\u03bc' =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [
    {<Id.Lit_Chars echo>}
    {(SingleQuoted left:<Id.Left_DollarSingleQuote "$'"> sval:"μ" right:<Id.Right_SingleQuote "'">)}
  ]
  is_last_cmd: F
)

===== CASE: -n -c echo $'\u{03bc}' =====


  echo $'\u{03bc}'
         ^
[ -c flag ]:1: Invalid char escape in C-style string literal (OILS-ERR-11)

===== CASE: -n -c echo $'\u{03bc' =====


  echo $'\u{03bc'
         ^
[ -c flag ]:1: Invalid char escape in C-style string literal (OILS-ERR-11)

===== CASE: -n -c const bad = $'\u{03bc' =====


  const bad = $'\u{03bc'
                ^
[ -c flag ]:1: Invalid char escape in C-style string literal (OILS-ERR-11)

===== CASE: -n -c echo $'\z' =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [
    {<Id.Lit_Chars echo>}
    {(SingleQuoted left:<Id.Left_DollarSingleQuote "$'"> sval:"\\z" right:<Id.Right_SingleQuote "'">)}
  ]
  is_last_cmd: F
)

===== CASE: -n -c echo $'\z' =====


  echo $'\z'
         ^
[ -c flag ]:1: Invalid char escape in C-style string literal (OILS-ERR-11)

===== CASE: -n -c const bad = $'\z' =====


  const bad = $'\z'
                ^
[ -c flag ]:1: Invalid char escape in C-style string literal (OILS-ERR-11)

===== CASE: -n -c echo $'\101' =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [
    {<Id.Lit_Chars echo>}
    {(SingleQuoted left:<Id.Left_DollarSingleQuote "$'"> sval:A right:<Id.Right_SingleQuote "'">)}
  ]
  is_last_cmd: F
)

===== CASE: -n -c const bad = $'\101' =====


  const bad = $'\101'
                ^~~~
[ -c flag ]:1: Use \xhh or \u{...} instead of octal escapes in YSH strings

===== CASE: -n -c const bad = c'\xf' =====


  const bad = c'\xf'
               ^
[ -c flag ]:1: Syntax error in expression (near Id.Left_SingleQuote)
OK  test-ysh_c_strings
*** Running test-ysh_dq_strings

===== CASE: -n -c echo "\z" =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [{<Id.Lit_Chars echo>} {(DQ <Id.Lit_BadBackslash "\\"> <Id.Lit_Chars z>)}]
  is_last_cmd: F
)

===== CASE: +O parse_backslash -n -c echo test-parse_backslash "\z" =====


  echo test-parse_backslash "\z"
                             ^
[ -c flag ]:1: Invalid char escape in double quoted string (OILS-ERR-12)

===== CASE: -n -c echo "\z" =====


  echo "\z"
        ^
[ -c flag ]:1: Invalid char escape in double quoted string (OILS-ERR-12)

===== CASE: -n -c const bad = "\z" =====


  const bad = "\z"
               ^
[ -c flag ]:1: Invalid char escape in double quoted string (OILS-ERR-12)

===== CASE: -n -c echo "\u1234" =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [{<Id.Lit_Chars echo>} {(DQ <Id.Lit_BadBackslash "\\"> <Id.Lit_Chars u1234>)}]
  is_last_cmd: F
)

===== CASE: -n -c echo "\u1234" =====


  echo "\u1234"
        ^
[ -c flag ]:1: Invalid char escape in double quoted string (OILS-ERR-12)

===== CASE: -n -c const bad = "\u1234" =====


  const bad = "\u1234"
               ^
[ -c flag ]:1: Invalid char escape in double quoted string (OILS-ERR-12)

===== CASE: -n -c echo "`echo hi`" =====


(command.Simple
  blame_tok: <Id.Lit_Chars echo>
  more_env: []
  words: [
    {<Id.Lit_Chars echo>}
    {
      (DQ 
        (CommandSub
          left_token: <Id.Left_Backtick "`">
          child: 
            (command.Simple
              blame_tok: <Id.Lit_Chars echo>
              more_env: []
              words: [{<Id.Lit_Chars echo>} {<Id.Lit_Chars hi>}]
              is_last_cmd: F
            )
          right: <Id.Backtick_Right "`">
        )
      )
    }
  ]
  is_last_cmd: F
)

===== CASE: -n -c echo "`echo hi`" =====


  echo "`echo hi`"
        ^
[ -c flag ]:1: Use $(cmd) instead of backticks (parse_backticks)

===== CASE: -n -c const bad = "`echo hi`" =====


  const bad = "`echo hi`"
               ^
[ -c flag ]:1: Invalid backtick: use $(cmd) or \` in YSH strings

===== CASE: -n -c setvar x = "\z" =====


  setvar x = "\z"
              ^
[ -c flag ]:1: Invalid char escape in double quoted string (OILS-ERR-12)
OK  test-ysh_dq_strings

test/ysh-parse-errors.sh: 55 tests passed.