17 chapters -> (doctools/make_help) -> 428 <h3> cards from 139 <h2> sections to None

TOC:

  toc-data.md
    front-end
    j8
    errors
  toc-osh.md
    type-method
    builtin-cmd
    stdlib
    front-end
    cmd-lang
    osh-assign
    word-lang
    mini-lang
    option
    special-var
    plugin
  toc-ysh.md
    type-method
    builtin-func
    builtin-cmd
    stdlib
    stdlib
    front-end
    cmd-lang
    ysh-cmd
    expr-lang
    word-lang
    mini-lang
    option
    special-var
    plugin

TOC stats:
  All Topics: 498
  Unique topics: 473
  Topics marked implemented: 401
  Topics not implemented: 78
  Sections not implemented (X): 12

Chapter stats:
  num chapters = 17
  num_sections = 139
  num_topics = 435
  num unique topics = 428
  topics with first draft (more than 5 words) = 358

435 in link_to set: [('chap-builtin-cmd.html', 'alias'), ('chap-builtin-cmd.html', 'assert'), ('chap-builtin-cmd.html', 'boolstatus'), ('chap-builtin-cmd.html', 'builtin'), ('chap-builtin-cmd.html', 'cd'), ('chap-builtin-cmd.html', 'cmd/append'), ('chap-builtin-cmd.html', 'cmd/type'), ('chap-builtin-cmd.html', 'command'), ('chap-builtin-cmd.html', 'compadjust'), ('chap-builtin-cmd.html', 'compexport')]

478 in link_from set: [('chap-builtin-cmd.html', 'alias'), ('chap-builtin-cmd.html', 'assert'), ('chap-builtin-cmd.html', 'bg'), ('chap-builtin-cmd.html', 'bind'), ('chap-builtin-cmd.html', 'boolstatus'), ('chap-builtin-cmd.html', 'builtin'), ('chap-builtin-cmd.html', 'caller'), ('chap-builtin-cmd.html', 'cd'), ('chap-builtin-cmd.html', 'cmd/append'), ('chap-builtin-cmd.html', 'cmd/type')]

Topics in multiple chapters:
  triple-quoted: chap-expr-lang.html chap-word-lang.html
  ysh-string: chap-expr-lang.html chap-word-lang.html
  split: chap-builtin-func.html chap-type-method.html
  glob: chap-builtin-func.html chap-type-method.html
  complete: chap-builtin-cmd.html chap-plugin.html
  eval: chap-builtin-cmd.html chap-type-method.html
  time: chap-cmd-lang.html chap-type-method.html

Duplicate topics in TOC:

        OILS_VERSION: toc-osh.md toc-ysh.md
    ascii-whitespace: toc-data.md toc-osh.md toc-ysh.md
              braces: toc-osh.md toc-ysh.md
         command-sub: toc-osh.md toc-ysh.md
          compadjust: toc-osh.md toc-ysh.md
          compexport: toc-osh.md toc-ysh.md
            complete: toc-osh.md toc-osh.md
                eval: toc-osh.md toc-ysh.md
            glob-pat: toc-osh.md toc-ysh.md
          oils-usage: toc-osh.md toc-ysh.md
               table: toc-ysh.md toc-ysh.md toc-ysh.md toc-ysh.md toc-ysh.md toc-ysh.md toc-ysh.md
       triple-quoted: toc-ysh.md toc-ysh.md
          ysh-string: toc-ysh.md toc-ysh.md

26 Broken Links:
  ('chap-stdlib.html', 'align')
  ('chap-stdlib.html', 'attr')
  ('chap-stdlib.html', 'cat')
  ('chap-stdlib.html', 'chop')
  ('chap-stdlib.html', 'each-row')
  ('chap-stdlib.html', 'each-word')
  ('chap-stdlib.html', 'group-by')
  ('chap-stdlib.html', 'header')
  ('chap-stdlib.html', 'if-match')
  ('chap-stdlib.html', 'if-split-by')
  ('chap-stdlib.html', 'must-match')
  ('chap-stdlib.html', 'mutate')
  ('chap-stdlib.html', 'parse')
  ('chap-stdlib.html', 'pick')
  ('chap-stdlib.html', 'rename')
  ('chap-stdlib.html', 'row')
  ('chap-stdlib.html', 'slice')
  ('chap-stdlib.html', 'sort-by')
  ('chap-stdlib.html', 'split-by')
  ('chap-stdlib.html', 'summary')
  ('chap-stdlib.html', 'tabify')
  ('chap-stdlib.html', 'table')
  ('chap-stdlib.html', 'table/cols')
  ('chap-stdlib.html', 'to-tsv')
  ('chap-stdlib.html', 'transmute')
  ('chap-stdlib.html', 'types')

18 Orphaned Topics:
  ('chap-front-end.html', 'osh-chapters')
  ('chap-front-end.html', 'ysh-chapters')
  ('chap-index.html', 'append')
  ('chap-index.html', 'type')
  ('chap-option.html', 'dashglob')
  ('chap-option.html', 'eval_unsafe_arith')
  ('chap-option.html', 'ignore_flags_not_impl')
  ('chap-option.html', 'nullglob')
  ('chap-option.html', 'parse_ignored')
  ('chap-option.html', 'parse_triple_quote')
  ('chap-option.html', 'parse_ysh_string')
  ('chap-option.html', 'sigpipe_status_ok')
  ('chap-option.html', 'strict_control_flow')
  ('chap-option.html', 'strict_nameref')
  ('chap-option.html', 'strict_tilde')
  ('chap-special-var.html', '_status')
  ('chap-stdlib.html', 'task-five')
  ('chap-type-method.html', 'split')

Short topics:
      readarray  'Alias for mapfile.\n'
           glob  'See glob-pat topic for syntax.\n'
         sha1dc  "Git's algorithm.\n"
             or  'ls || die "failed"\n'
         return  'Return from a function.\n'
        startup  'History is read?\n'
        histsub  'History substitution uses !.\n'
            PS1  'First line of a prompt.\n'
            PS2  'Second line of a prompt.\n'
            PS3  "For the 'select' builtin (unimplemented).\n"
           ARGV  'Replacement for "$@"\n'
        _status  'DEPRECATED: Use _error.code instead.\n'
           LANG  'TODO: bash compat\n'
     GLOBIGNORE  'TODO: bash compat\n'
     COMP_CWORD  'Discouraged; for compatibility with bash.\n'
      COMP_LINE  'Discouraged; for compatibility with bash.\n'
     COMP_POINT  'Discouraged; for compatibility with bash.\n'
COMP_WORDBREAKS  'Discouraged; for compatibility with bash.\n'
         RANDOM  'bash compat\n'
          upper  'Respects unicode.\n'
          lower  'Respects unicode.\n'
           time  'TODO: Depends on system clock.\n'
     ysh-printf  'Not done.\necho ${x %.3f}\n'
     ysh-format  'Not done.\necho ${x|html}\n'
     tagged-str  'Not done.\n'
       op-index  'echo ${a[i+1]}\n'
       op-slice  'echo ${a[@]:1:2}\necho ${@:1:2}\n'