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-rw-r--r--runtime/syntax/pccts.vim89
1 files changed, 89 insertions, 0 deletions
diff --git a/runtime/syntax/pccts.vim b/runtime/syntax/pccts.vim
new file mode 100644
index 0000000..7800357
--- /dev/null
+++ b/runtime/syntax/pccts.vim
@@ -0,0 +1,89 @@
+" Vim syntax file
+" Language: PCCTS
+" Maintainer: Scott Bigham <dsb@killerbunnies.org>
+" Last Change: 10 Aug 1999
+
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
+ finish
+endif
+
+" Read the C++ syntax to start with
+syn include @cppTopLevel syntax/cpp.vim
+
+syn region pcctsAction matchgroup=pcctsDelim start="<<" end=">>?\=" contains=@cppTopLevel,pcctsRuleRef
+
+syn region pcctsArgBlock matchgroup=pcctsDelim start="\(>\s*\)\=\[" end="\]" contains=@cppTopLevel,pcctsRuleRef
+
+syn region pcctsString start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=pcctsSpecialChar
+syn match pcctsSpecialChar "\\\\\|\\\"" contained
+
+syn region pcctsComment start="/\*" end="\*/" contains=cTodo
+syn match pcctsComment "//.*$" contains=cTodo
+
+syn region pcctsDirective start="^\s*#header\s\+<<" end=">>" contains=pcctsAction keepend
+syn match pcctsDirective "^\s*#parser\>.*$" contains=pcctsString,pcctsComment
+syn match pcctsDirective "^\s*#tokdefs\>.*$" contains=pcctsString,pcctsComment
+syn match pcctsDirective "^\s*#token\>.*$" contains=pcctsString,pcctsAction,pcctsTokenName,pcctsComment
+syn region pcctsDirective start="^\s*#tokclass\s\+[A-Z]\i*\s\+{" end="}" contains=pcctsString,pcctsTokenName
+syn match pcctsDirective "^\s*#lexclass\>.*$" contains=pcctsTokenName
+syn region pcctsDirective start="^\s*#errclass\s\+[^{]\+\s\+{" end="}" contains=pcctsString,pcctsTokenName
+syn match pcctsDirective "^\s*#pred\>.*$" contains=pcctsTokenName,pcctsAction
+
+syn cluster pcctsInRule contains=pcctsString,pcctsRuleName,pcctsTokenName,pcctsAction,pcctsArgBlock,pcctsSubRule,pcctsLabel,pcctsComment
+
+syn region pcctsRule start="\<[a-z][A-Za-z0-9_]*\>\(\s*\[[^]]*\]\)\=\(\s*>\s*\[[^]]*\]\)\=\s*:" end=";" contains=@pcctsInRule
+
+syn region pcctsSubRule matchgroup=pcctsDelim start="(" end=")\(+\|\*\|?\(\s*=>\)\=\)\=" contains=@pcctsInRule contained
+syn region pcctsSubRule matchgroup=pcctsDelim start="{" end="}" contains=@pcctsInRule contained
+
+syn match pcctsRuleName "\<[a-z]\i*\>" contained
+syn match pcctsTokenName "\<[A-Z]\i*\>" contained
+
+syn match pcctsLabel "\<\I\i*:\I\i*" contained contains=pcctsLabelHack,pcctsRuleName,pcctsTokenName
+syn match pcctsLabel "\<\I\i*:\"\([^\\]\|\\.\)*\"" contained contains=pcctsLabelHack,pcctsString
+syn match pcctsLabelHack "\<\I\i*:" contained
+
+syn match pcctsRuleRef "\$\I\i*\>" contained
+syn match pcctsRuleRef "\$\d\+\(\.\d\+\)\>" contained
+
+syn keyword pcctsClass class nextgroup=pcctsClassName skipwhite
+syn match pcctsClassName "\<\I\i*\>" contained nextgroup=pcctsClassBlock skipwhite skipnl
+syn region pcctsClassBlock start="{" end="}" contained contains=pcctsRule,pcctsComment,pcctsDirective,pcctsAction,pcctsException,pcctsExceptionHandler
+
+syn keyword pcctsException exception nextgroup=pcctsExceptionRuleRef skipwhite
+syn match pcctsExceptionRuleRef "\[\I\i*\]" contained contains=pcctsExceptionID
+syn match pcctsExceptionID "\I\i*" contained
+syn keyword pcctsExceptionHandler catch default
+syn keyword pcctsExceptionHandler NoViableAlt NoSemViableAlt
+syn keyword pcctsExceptionHandler MismatchedToken
+
+syn sync clear
+syn sync match pcctsSyncAction grouphere pcctsAction "<<"
+syn sync match pcctsSyncAction "<<\([^>]\|>[^>]\)*>>"
+syn sync match pcctsSyncRule grouphere pcctsRule "\<[a-z][A-Za-z0-9_]*\>\s*\[[^]]*\]\s*:"
+syn sync match pcctsSyncRule grouphere pcctsRule "\<[a-z][A-Za-z0-9_]*\>\(\s*\[[^]]*\]\)\=\s*>\s*\[[^]]*\]\s*:"
+
+" Define the default highlighting.
+" Only when an item doesn't have highlighting yet
+
+hi def link pcctsDelim Special
+hi def link pcctsTokenName Identifier
+hi def link pcctsRuleName Statement
+hi def link pcctsLabelHack Label
+hi def link pcctsDirective PreProc
+hi def link pcctsString String
+hi def link pcctsComment Comment
+hi def link pcctsClass Statement
+hi def link pcctsClassName Identifier
+hi def link pcctsException Statement
+hi def link pcctsExceptionHandler Keyword
+hi def link pcctsExceptionRuleRef pcctsDelim
+hi def link pcctsExceptionID Identifier
+hi def link pcctsRuleRef Identifier
+hi def link pcctsSpecialChar SpecialChar
+
+
+let b:current_syntax = "pccts"
+
+" vim: ts=8