1doctoc_lang_syntax(n)         Documentation tools        doctoc_lang_syntax(n)
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NAME

8       doctoc_lang_syntax - doctoc language syntax
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DESCRIPTION

11       This  document  contains  the formal specification of the syntax of the
12       doctoc markup language, version 1.1 in Backus-Naur-Form. This  document
13       is  intended  to be a reference, complementing the doctoc language com‐
14       mand reference.  A beginner should read the much more informally  writ‐
15       ten  doctoc language introduction first before trying to understand ei‐
16       ther this document or the command reference.
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FUNDAMENTALS

19       In the broadest terms possible the doctoc markup language is like  SGML
20       and  similar  languages.  A  document written in this language consists
21       primarily of markup commands,  with  text  embedded  into  it  at  some
22       places.
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24       Each markup command is a just Tcl command surrounded by a matching pair
25       of [ and ]. Which commands are available,  and  their  arguments,  i.e.
26       syntax is specified in the doctoc language command reference.
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28       In this document we specify first the lexeme, and then the syntax, i.e.
29       how we can mix text and markup commands with each other.
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LEXICAL DEFINITIONS

32       In the syntax rules listed in the next section
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34       [1]    <TEXT> stands for all text except markup commands.
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36       [2]    Any XXX stands for the markup command [xxx] including its  argu‐
37              ments.  Each  markup  command  is  a Tcl command surrounded by a
38              matching pair of [ and ]. Inside of these delimiters  the  usual
39              rules  for  a  Tcl  command apply with regard to word quotation,
40              nested commands, continuation lines, etc.
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42       [3]    <WHITE> stands for all text consisting only of spaces, newlines,
43              tabulators and the comment markup command.
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SYNTAX

46       The  rules listed here specify only the syntax of doctoc documents. The
47       lexical level of the language was covered in the previous section.
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49       Regarding the syntax of the (E)BNF itself
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51       [1]    The construct { X } stands for zero or more occurrences of X.
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53       [2]    The construct [ X ] stands for zero or one occurrence of X.
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55       The syntax:
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58              toc       = defs
59                          TOC_BEGIN
60                          contents
61                          TOC_END
62                          { <WHITE> }
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64              defs      = { INCLUDE | VSET | <WHITE> }
65              contents  = { defs entry } [ defs ]
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67              entry     = ITEM | division
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69              division  = DIVISION_START
70                          contents
71                          DIVISION_END
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BUGS, IDEAS, FEEDBACK

75       This document, and the package it describes, will  undoubtedly  contain
76       bugs  and  other problems.  Please report such in the category doctools
77       of the Tcllib Trackers [http://core.tcl.tk/tcllib/reportlist].   Please
78       also  report any ideas for enhancements you may have for either package
79       and/or documentation.
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81       When proposing code changes, please provide unified diffs, i.e the out‐
82       put of diff -u.
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84       Note  further  that  attachments  are  strongly  preferred over inlined
85       patches. Attachments can be made by going  to  the  Edit  form  of  the
86       ticket  immediately  after  its  creation, and then using the left-most
87       button in the secondary navigation bar.
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SEE ALSO

90       doctoc_intro, doctoc_lang_cmdref, doctoc_lang_faq, doctoc_lang_intro
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KEYWORDS

93       doctoc commands, doctoc language, doctoc markup, doctoc syntax, markup,
94       semantic markup
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CATEGORY

97       Documentation tools
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100       Copyright (c) 2007-2009 Andreas Kupries <andreas_kupries@users.sourceforge.net>
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105tcllib                                1.0                doctoc_lang_syntax(n)
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