Adding upstream version 2:8.2.2434.upstream/2%8.2.2434upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 188 insertions, 0 deletions

diff --git a/runtime/syntax/lex.vim b/runtime/syntax/lex.vim
new file mode 100644
index 0000000..82197ad
--- /dev/null
+++ b/runtime/syntax/lex.vim
@@ -0,0 +1,188 @@
+" Vim syntax file
+" Language:	Lex and Flex
+" Maintainer:	Charles E. Campbell <NcampObell@SdrPchip.AorgM-NOSPAM>
+" Contributor:	Robert A. van Engelen <engelen@acm.org>
+" Last Change:	Apr 24, 2020
+" Version:	18
+
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
+  finish
+endif
+
+" Read the C++ syntax to start with
+let s:Cpath= fnameescape(expand("<sfile>:p:h")."/cpp.vim")
+if !filereadable(s:Cpath)
+ for s:Cpath in split(globpath(&rtp,"syntax/cpp.vim"),"\n")
+  if filereadable(fnameescape(s:Cpath))
+   let s:Cpath= fnameescape(s:Cpath)
+   break
+  endif
+ endfor
+endif
+exe "syn include @lexCcode ".s:Cpath
+
+" --- ========= ---
+" --- Lex stuff ---
+" --- ========= ---
+
+" Definitions
+" %%
+" Rules
+" %%
+" User Code
+"
+" --- ======= ---
+" --- Example ---
+" --- ======= ---
+"
+"   // this is a valid lex file
+"   // indented initial code block
+"   #include <stdlib.h>
+" %{
+" // initial code block
+" #include <stdio.h>
+" const char *sep = "";
+" %}
+" %option outfile="scanner.c" noyywrap nodefault
+" %x COMMENT
+" id      [A-Za-z_][A-Za-z0-9_]*
+" %%
+"   // indented initial action code block
+"   printf("BEGIN");
+" {id}    printf("%s%s", sep, yytext); sep = "";
+" .       |
+" \n      { sep = "\n"; }
+" "/*"    { BEGIN COMMENT; }
+" "//".*  { }
+" <COMMENT>{
+" "*/"    { BEGIN INITIAL; }
+" .|\n    
+" }
+" <*><<EOF>> { // end of file
+"              printf("\nEND\n");
+"              yyterminate();
+"            }
+" %%
+" void scan()
+" {
+"   while (yylex())
+"     continue;
+" }
+" /* main program */
+" int main()
+" { 
+"   scan();
+" }   
+
+" Definitions Section with initial code blocks, abbreviations, options, states
+if has("folding")
+ syn region lexAbbrvBlock	fold	start="^\S"	end="^\ze%%"	skipnl	nextgroup=lexPatBlock	contains=lexOptions,lexAbbrv,lexInitialCodeBlock,lexInclude,lexAbbrvComment,lexStartState
+else
+ syn region lexAbbrvBlock		start="^\S"	end="^\ze%%"	skipnl	nextgroup=lexPatBlock	contains=lexOptions,lexAbbrv,lexInitialCodeBlock,lexInclude,lexAbbrvComment,lexStartState
+endif
+syn match  lexOptions		"^%\a\+\(\s.*\|[^{]*\)$"				contains=lexOptionsEq,lexPatString,lexSlashQuote,lexBrace,lexSlashBrace
+syn match  lexOptionsEq		"="					skipwhite	contained
+syn match  lexAbbrv		"^\I\i*\s"me=e-1			skipwhite	contained	nextgroup=lexAbbrvPat
+syn match  lexAbbrvPat		"\s\S.*$"lc=1						contained	contains=lexPatAbbrv,lexPatString,lexSlashQuote,lexBrace,lexSlashBrace	nextgroup=lexAbbrv,lexInclude
+syn match  lexStartState	"^%\(xs\?\|s\)\(t\(a\(t\(e\?\)\?\)\?\)\?\)\?\(\s\+\I\i*\)\+\s*$"	contained	contains=lexStartStateCmd
+syn match  lexStartStateCmd	'^%\(xs\?\|s\)\(t\(a\(t\(e\?\)\?\)\?\)\?\)\?'	contained
+if has("folding")
+ syn region lexInitialCodeBlock	fold				start="^\s\+"	end="^\S"me=e-1			contains=@lexCcode
+ syn region lexInclude		fold	matchgroup=lexSep	start="^%\a*{"	end="^%\?}"	contained	contains=@lexCcode,lexCFunctions
+ syn region lexAbbrvComment	fold				start="^\s*//"	end="$"		contains=@Spell
+ syn region lexAbbrvComment	fold				start="^\s*/\*"	end="\*/"	contains=@Spell
+else
+ syn region lexInitialCodeBlock					start="^\s\+"	end="^\S"me=e-1			contains=@lexCcode
+ syn region lexInclude			matchgroup=lexSep	start="^%\a*{"	end="^%\?}"	contained	contains=@lexCcode,lexCFunctions
+ syn region lexAbbrvComment					start="^\s*//"	end="$"		contains=@Spell
+ syn region lexAbbrvComment					start="^\s*/\*"	end="\*/"	contains=@Spell
+endif
+
+" Rules Section with patterns and actions
+if has("folding")
+ syn region lexPatBlock		fold	matchgroup=Todo		start="^%%"	matchgroup=Todo		end="^\ze%%"	skipnl	skipwhite	nextgroup=lexFinalCodeBlock	contains=lexPatTag,lexPatTagZone,lexPatComment,lexPat,lexPatSep,lexPatInclude
+ syn region lexPat		fold				start="\S"	skip="\\\\\|\\\s"	end="\ze\(\s*$\|\s\+\(\h\|{\W\|{$\|[-+*]\|//\|/\*\)\)"	skipwhite	contained nextgroup=lexMorePat,lexPatSep,lexPatEnd	contains=lexPatTag,lexPatString,lexSlashQuote,lexPatAbbrv,lexBrace,lexSlashBrace
+ syn region lexPatInclude	fold	matchgroup=lexSep	start="^%{"	end="^%}"	contained	contains=@lexCcode
+ syn region lexBrace		fold	matchgroup=Character	start="\["	skip="\\.\|\[:\a\+:\]\|\[\.\a\+\.\]\|\[=.=\]"	end="\]"	contained
+ syn region lexPatString	fold	matchgroup=String	start=+"+	skip=+\\\\\|\\"+	matchgroup=String	end=+"+	contained
+else
+ syn region lexPatBlock			matchgroup=Todo		start="^%%"	matchgroup=Todo		end="^\ze%%"	skipnl	skipwhite	nextgroup=lexFinalCodeBlock	contains=lexPatTag,lexPatTagZone,lexPatComment,lexPat,lexPatSep,lexPatInclude
+ syn region lexPat						start="\S"	skip="\\\\\|\\\s"	end="\ze\(\s*$\|\s\+\(\h\|{\W\|{$\|[-+*]\|//\|/\*\)\)"	skipwhite	contained nextgroup=lexMorePat,lexPatSep,lexPatEnd	contains=lexPatTag,lexPatString,lexSlashQuote,lexPatAbbrv,lexBrace,lexSlashBrace
+ syn region lexPatInclude		matchgroup=lexSep	start="^%{"	end="^%}"	contained	contains=@lexCcode
+ syn region lexBrace			matchgroup=Character	start="\["	skip="\\.\|\[:\a\+:\]\|\[\.\a\+\.\]\|\[=.=\]"	end="\]"	contained
+ syn region lexPatString		matchgroup=String	start=+"+	skip=+\\\\\|\\"+	matchgroup=String	end=+"+	contained
+endif
+syn match  lexPatAbbrv		"{\I\i*}"hs=s+1,he=e-1					contained
+syn match  lexPatTag		"^<\^\?\(\I\i*\|\*\)\(,\^\?\(\I\i*\|\*\)\)*>"		contained	nextgroup=lexPat,lexMorePat,lexPatSep,lexPatEnd
+syn match  lexPatTagZone	"^<\^\?\(\I\i*\|\*\)\(,\^\?\(\I\i*\|\*\)\)*>\s*{$"me=e-1	contained	nextgroup=lexPatTagZoneStart
+
+if has("folding")
+ syn region lexPatTagZoneStart	fold	matchgroup=lexPatTag	start='{$'	end='^}'	skipnl	skipwhite	contained	contains=lexPatTag,lexPatTagZone,lexPatComment,lexPat,lexPatSep,lexPatInclude
+ syn region lexPatComment	fold	start="//"	end="$"		skipnl	contained	contains=cTodo	skipwhite	nextgroup=lexPatComment,lexPat,@Spell
+ syn region lexPatComment	fold	start="/\*"	end="\*/"	skipnl	contained	contains=cTodo	skipwhite	nextgroup=lexPatComment,lexPat,@Spell
+else
+ syn region lexPatTagZoneStart		matchgroup=lexPatTag		start='{'	end='^}'	skipnl	skipwhite	contained	contains=lexPatTag,lexPatTagZone,lexPatComment,lexPat,lexPatSep,lexPatInclude
+ syn region lexPatComment		start="//"	end="$"		skipnl	contained	contains=cTodo	skipwhite	nextgroup=lexPatComment,lexPat,@Spell
+ syn region lexPatComment		start="/\*"	end="\*/"	skipnl	contained	contains=cTodo	skipwhite	nextgroup=lexPatComment,lexPat,@Spell
+endif
+syn match  lexPatEnd		"\s*$"				skipnl	contained
+syn match  lexPatCodeLine	"[^{\[].*"				contained	contains=@lexCcode,lexCFunctions
+syn match  lexMorePat		"\s*|\s*$"			skipnl	contained	nextgroup=lexPat,lexPatTag,lexPatComment
+syn match  lexPatSep		"\s\+"					contained	nextgroup=lexMorePat,lexPatCode,lexPatCodeLine
+syn match  lexSlashQuote	+\(\\\\\)*\\"+				contained
+syn match  lexSlashBrace	+\(\\\\\)*\\\[+				contained
+if has("folding")
+ syn region lexPatCode		fold	matchgroup=Delimiter	start="{"	end="}"	skipnl	contained	contains=@lexCcode,lexCFunctions
+else
+ syn region lexPatCode			matchgroup=Delimiter	start="{"	end="}"	skipnl	contained	contains=@lexCcode,lexCFunctions
+endif
+
+" User Code Section with final code block
+syn region lexFinalCodeBlock	matchgroup=Todo	start="^%%"	end="\%$"	contained	contains=@lexCcode
+
+" Lex macros which may appear in C/C++ code blocks
+syn keyword lexCFunctions	BEGIN	ECHO	REJECT	yytext	YYText	yyleng	YYLeng	yymore	yyless	yywrap	yylook
+syn keyword lexCFunctions	yyrestart	yyterminate	yylineno	yycolumno	yyin	yyout
+syn keyword lexCFunctions	input	unput	output		winput		wunput		woutput
+syn keyword lexCFunctions	yyinput	yyunput	yyoutput	yywinput	yywunput	yywoutput
+
+" <c.vim> includes several ALLBUTs; these have to be treated so as to exclude lex* groups
+syn cluster cParenGroup		add=lex.*
+syn cluster cDefineGroup	add=lex.*
+syn cluster cPreProcGroup	add=lex.*
+syn cluster cMultiGroup		add=lex.*
+
+" Synchronization
+syn sync clear
+syn sync minlines=500
+syn sync match lexSyncPat	grouphere  lexPatBlock	"^%[a-zA-Z]"
+syn sync match lexSyncPat	groupthere lexPatBlock	"^<$"
+syn sync match lexSyncPat	groupthere lexPatBlock	"^%%"
+
+" The default highlighting.
+if !exists("skip_lex_syntax_inits")
+ hi def link lexAbbrvComment	lexPatComment
+ hi def link lexAbbrvPat	lexPat
+ hi def link lexAbbrv		Special
+ hi def link lexBrace		lexPat
+ hi def link lexCFunctions	PreProc
+ hi def link lexMorePat		Special
+ hi def link lexOptions		PreProc
+ hi def link lexOptionsEq	Operator
+ hi def link lexPatComment	Comment
+ hi def link lexPat		Function
+ hi def link lexPatString	lexPat
+ hi def link lexPatAbbrv	Special
+ hi def link lexPatTag		Statement
+ hi def link lexPatTagZone	lexPatTag
+ hi def link lexSep		Delimiter
+ hi def link lexSlashQuote	lexPat
+ hi def link lexSlashBrace	lexPat
+ hi def link lexStartState	lexPatTag
+ hi def link lexStartStateCmd	Special
+endif
+
+let b:current_syntax = "lex"
+
+" vim:ts=8