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" Vim syntax file
" Language: Perl POD format
" Maintainer: vim-perl <vim-perl@googlegroups.com>
" Previously: Scott Bigham <dsb@killerbunnies.org>
" Homepage: http://github.com/vim-perl/vim-perl
" Bugs/requests: http://github.com/vim-perl/vim-perl/issues
" Last Change: 2013-07-21
" To add embedded POD documentation highlighting to your syntax file, add
" the commands:
"
" syn include @Pod <sfile>:p:h/pod.vim
" syn region myPOD start="^=pod" start="^=head" end="^=cut" keepend contained contains=@Pod
"
" and add myPod to the contains= list of some existing region, probably a
" comment. The "keepend" flag is needed because "=cut" is matched as a
" pattern in its own right.
" Remove any old syntax stuff hanging around (this is suppressed
" automatically by ":syn include" if necessary).
" quit when a syntax file was already loaded
if exists("b:current_syntax")
finish
endif
let s:cpo_save = &cpo
set cpo&vim
" POD commands
syn match podCommand "^=encoding" nextgroup=podCmdText contains=@NoSpell
syn match podCommand "^=head[1234]" nextgroup=podCmdText contains=@NoSpell
syn match podCommand "^=item" nextgroup=podCmdText contains=@NoSpell
syn match podCommand "^=over" nextgroup=podOverIndent skipwhite contains=@NoSpell
syn match podCommand "^=back" contains=@NoSpell
syn match podCommand "^=cut" contains=@NoSpell
syn match podCommand "^=pod" contains=@NoSpell
syn match podCommand "^=for" nextgroup=podForKeywd skipwhite contains=@NoSpell
syn match podCommand "^=begin" nextgroup=podForKeywd skipwhite contains=@NoSpell
syn match podCommand "^=end" nextgroup=podForKeywd skipwhite contains=@NoSpell
" Text of a =head1, =head2 or =item command
syn match podCmdText ".*$" contained contains=podFormat,@NoSpell
" Indent amount of =over command
syn match podOverIndent "\d\+" contained contains=@NoSpell
" Formatter identifier keyword for =for, =begin and =end commands
syn match podForKeywd "\S\+" contained contains=@NoSpell
" An indented line, to be displayed verbatim
syn match podVerbatimLine "^\s.*$" contains=@NoSpell
" Inline textual items handled specially by POD
syn match podSpecial "\(\<\|&\)\I\i*\(::\I\i*\)*([^)]*)" contains=@NoSpell
syn match podSpecial "[$@%]\I\i*\(::\I\i*\)*\>" contains=@NoSpell
" Special formatting sequences
syn region podFormat start="[IBSCLFX]<[^<]"me=e-1 end=">" oneline contains=podFormat,@NoSpell
syn region podFormat start="[IBSCLFX]<<\s" end="\s>>" oneline contains=podFormat,@NoSpell
syn match podFormat "Z<>"
syn match podFormat "E<\(\d\+\|\I\i*\)>" contains=podEscape,podEscape2,@NoSpell
syn match podEscape "\I\i*>"me=e-1 contained contains=@NoSpell
syn match podEscape2 "\d\+>"me=e-1 contained contains=@NoSpell
" Define the default highlighting.
" Only when an item doesn't have highlighting yet
command -nargs=+ HiLink hi def link <args>
HiLink podCommand Statement
HiLink podCmdText String
HiLink podOverIndent Number
HiLink podForKeywd Identifier
HiLink podFormat Identifier
HiLink podVerbatimLine PreProc
HiLink podSpecial Identifier
HiLink podEscape String
HiLink podEscape2 Number
delcommand HiLink
if exists("perl_pod_spellcheck_headings")
" Spell-check headings
syn clear podCmdText
syn match podCmdText ".*$" contained contains=podFormat
endif
if exists("perl_pod_formatting")
" By default, escapes like C<> are not checked for spelling. Remove B<>
" and I<> from the list of escapes.
syn clear podFormat
syn region podFormat start="[CLF]<[^<]"me=e-1 end=">" oneline contains=podFormat,@NoSpell
syn region podFormat start="[CLF]<<\s" end="\s>>" oneline contains=podFormat,@NoSpell
" Don't spell-check inside E<>, but ensure that the E< itself isn't
" marked as a spelling mistake.
syn match podFormat "E<\(\d\+\|\I\i*\)>" contains=podEscape,podEscape2,@NoSpell
" Z<> is a mock formatting code. Ensure Z<> on its own isn't marked as a
" spelling mistake.
syn match podFormat "Z<>" contains=podEscape,podEscape2,@NoSpell
" These are required so that whatever is *within* B<...>, I<...>, etc. is
" spell-checked, but not the B, I, ... itself.
syn match podBoldOpen "B<" contains=@NoSpell
syn match podItalicOpen "I<" contains=@NoSpell
syn match podNoSpaceOpen "S<" contains=@NoSpell
syn match podIndexOpen "X<" contains=@NoSpell
" Same as above but for the << >> syntax.
syn match podBoldAlternativeDelimOpen "B<< " contains=@NoSpell
syn match podItalicAlternativeDelimOpen "I<< " contains=@NoSpell
syn match podNoSpaceAlternativeDelimOpen "S<< " contains=@NoSpell
syn match podIndexAlternativeDelimOpen "X<< " contains=@NoSpell
" Add support for spell checking text inside B<>, I<>, S<> and X<>.
syn region podBold start="B<[^<]"me=e end=">" oneline contains=podBoldItalic,podBoldOpen
syn region podBoldAlternativeDelim start="B<<\s" end="\s>>" oneline contains=podBoldAlternativeDelimOpen
syn region podItalic start="I<[^<]"me=e end=">" oneline contains=podItalicBold,podItalicOpen
syn region podItalicAlternativeDelim start="I<<\s" end="\s>>" oneline contains=podItalicAlternativeDelimOpen
" Nested bold/italic and vice-versa
syn region podBoldItalic contained start="I<[^<]"me=e end=">" oneline
syn region podItalicBold contained start="B<[^<]"me=e end=">" oneline
syn region podNoSpace start="S<[^<]"ms=s-2 end=">"me=e oneline contains=podNoSpaceOpen
syn region podNoSpaceAlternativeDelim start="S<<\s"ms=s-2 end="\s>>"me=e oneline contains=podNoSpaceAlternativeDelimOpen
syn region podIndex start="X<[^<]"ms=s-2 end=">"me=e oneline contains=podIndexOpen
syn region podIndexAlternativeDelim start="X<<\s"ms=s-2 end="\s>>"me=e oneline contains=podIndexAlternativeDelimOpen
" Restore this (otherwise B<> is shown as bold inside verbatim)
syn match podVerbatimLine "^\s.*$" contains=@NoSpell
" Ensure formatted text can be displayed in headings and items
syn clear podCmdText
if exists("perl_pod_spellcheck_headings")
syn match podCmdText ".*$" contained contains=podFormat,podBold,
\podBoldAlternativeDelim,podItalic,podItalicAlternativeDelim,
\podBoldOpen,podItalicOpen,podBoldAlternativeDelimOpen,
\podItalicAlternativeDelimOpen,podNoSpaceOpen
else
syn match podCmdText ".*$" contained contains=podFormat,podBold,
\podBoldAlternativeDelim,podItalic,podItalicAlternativeDelim,
\@NoSpell
endif
" Specify how to display these
hi def podBold term=bold cterm=bold gui=bold
hi link podBoldAlternativeDelim podBold
hi link podBoldAlternativeDelimOpen podBold
hi link podBoldOpen podBold
hi link podNoSpace Identifier
hi link podNoSpaceAlternativeDelim Identifier
hi link podIndex Identifier
hi link podIndexAlternativeDelim Identifier
hi def podItalic term=italic cterm=italic gui=italic
hi link podItalicAlternativeDelim podItalic
hi link podItalicAlternativeDelimOpen podItalic
hi link podItalicOpen podItalic
hi def podBoldItalic term=italic,bold cterm=italic,bold gui=italic,bold
hi def podItalicBold term=italic,bold cterm=italic,bold gui=italic,bold
endif
let b:current_syntax = "pod"
let &cpo = s:cpo_save
unlet s:cpo_save
" vim: ts=8
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