annotate runtime/syntax/cweb.vim @ 10688:3d1872fbecc4 v8.0.0234

patch 8.0.0234: crash when using put in Visual mode commit https://github.com/vim/vim/commit/941c12da3c087fd04aa6c120a76bf28f19349d96 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Jan 24 19:55:43 2017 +0100 patch 8.0.0234: crash when using put in Visual mode Problem: When several lines are visually selected and one of them is short, using put may cause a crash. (Axel Bender) Solution: Check for a short line. (Christian Brabandt)
author Christian Brabandt <cb@256bit.org>
date Tue, 24 Jan 2017 20:00:04 +0100
parents 46763b01cd9a
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 " Vim syntax file
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2 " Language: CWEB
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3 " Maintainer: Andreas Scherer <andreas.scherer@pobox.com>
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4 " Last Change: 2011 Dec 25 by Thilo Six
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5
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6 " Details of the CWEB language can be found in the article by Donald E. Knuth
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7 " and Silvio Levy, "The CWEB System of Structured Documentation", included as
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8 " file "cwebman.tex" in the standard CWEB distribution, available for
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9 " anonymous ftp at ftp://labrea.stanford.edu/pub/cweb/.
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10
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11 " TODO: Section names and C/C++ comments should be treated as TeX material.
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12 " TODO: The current version switches syntax highlighting off for section
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13 " TODO: names, and leaves C/C++ comments as such. (On the other hand,
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14 " TODO: switching to TeX mode in C/C++ comments might be colour overkill.)
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15
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16 " quit when a syntax file was already loaded
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17 if exists("b:current_syntax")
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18 finish
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19 endif
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20
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21 " For starters, read the TeX syntax; TeX syntax items are allowed at the top
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22 " level in the CWEB syntax, e.g., in the preamble. In general, a CWEB source
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23 " code can be seen as a normal TeX document with some C/C++ material
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24 " interspersed in certain defined regions.
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25 runtime! syntax/tex.vim
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26 unlet b:current_syntax
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27
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28 " Read the C/C++ syntax too; C/C++ syntax items are treated as such in the
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29 " C/C++ section of a CWEB chunk or in inner C/C++ context in "|...|" groups.
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30 syntax include @webIncludedC <sfile>:p:h/cpp.vim
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31
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32 let s:cpo_save = &cpo
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33 set cpo&vim
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34
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35 " Inner C/C++ context (ICC) should be quite simple as it's comprised of
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36 " material in "|...|"; however the naive definition for this region would
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37 " hickup at the innocious "\|" TeX macro. Note: For the time being we expect
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38 " that an ICC begins either at the start of a line or after some white space.
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39 syntax region webInnerCcontext start="\(^\|[ \t\~`(]\)|" end="|" contains=@webIncludedC,webSectionName,webRestrictedTeX,webIgnoredStuff
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40
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41 " Genuine C/C++ material. This syntactic region covers both the definition
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42 " part and the C/C++ part of a CWEB section; it is ended by the TeX part of
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43 " the next section.
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44 syntax region webCpart start="@[dfscp<(]" end="@[ \*]" contains=@webIncludedC,webSectionName,webRestrictedTeX,webIgnoredStuff
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45
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46 " Section names contain C/C++ material only in inner context.
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47 syntax region webSectionName start="@[<(]" end="@>" contains=webInnerCcontext contained
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48
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49 " The contents of "control texts" is not treated as TeX material, because in
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50 " non-trivial cases this completely clobbers the syntax recognition. Instead,
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51 " we highlight these elements as "strings".
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52 syntax region webRestrictedTeX start="@[\^\.:t=q]" end="@>" oneline
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53
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54 " Double-@ means single-@, anywhere in the CWEB source. (This allows e-mail
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55 " address <someone@@fsf.org> without going into C/C++ mode.)
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56 syntax match webIgnoredStuff "@@"
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57
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58 " Define the default highlighting.
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59 " Only when an item doesn't have highlighting yet
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61 hi def link webRestrictedTeX String
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63
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64 let b:current_syntax = "cweb"
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65
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66 let &cpo = s:cpo_save
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67 unlet s:cpo_save
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68 " vim: ts=8