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-rw-r--r--Source/LexerParser/cmListFileLexer.in.l28
1 files changed, 16 insertions, 12 deletions
diff --git a/Source/LexerParser/cmListFileLexer.in.l b/Source/LexerParser/cmListFileLexer.in.l
index 5152dbf..f2fd538 100644
--- a/Source/LexerParser/cmListFileLexer.in.l
+++ b/Source/LexerParser/cmListFileLexer.in.l
@@ -7,14 +7,12 @@ This file must be translated to C and modified to build everywhere.
Run flex >= 2.6 like this:
- flex --nounistd -DFLEXINT_H --prefix=cmListFileLexer_yy -ocmListFileLexer.c cmListFileLexer.in.l
+ flex --nounistd -DFLEXINT_H --noline -ocmListFileLexer.c cmListFileLexer.in.l
Modify cmListFileLexer.c:
- - remove trailing whitespace: sed -i 's/\s*$//' cmListFileLexer.c
- - remove blank lines at end of file
- - #include "cmStandardLexer.h" at the top
- - add cast in yy_scan_bytes for loop condition of _yybytes_len to size_t
- - change type of variable yyl under yy_find_action from yy_size_t to int
+ - remove trailing whitespace: sed -i 's/\s*$//' cmListFileLexer.c
+ - remove blank lines at end of file: sed -i '${/^$/d;}' cmListFileLexer.c
+ - #include "cmStandardLexer.h" at the top: sed -i '1i#include "cmStandardLexer.h"' cmListFileLexer.c
*/
@@ -64,6 +62,8 @@ static void cmListFileLexerDestroy(cmListFileLexer* lexer);
/*--------------------------------------------------------------------------*/
%}
+%option prefix="cmListFileLexer_yy"
+
%option reentrant
%option yylineno
%option noyywrap
@@ -74,7 +74,7 @@ static void cmListFileLexerDestroy(cmListFileLexer* lexer);
%x COMMENT
MAKEVAR \$\([A-Za-z0-9_]*\)
-UNQUOTED ([^ \t\r\n\(\)#\\\"[=]|\\.)
+UNQUOTED ([^ \0\t\r\n\(\)#\\\"[=]|\\.)
LEGACY {MAKEVAR}|{UNQUOTED}|\"({MAKEVAR}|{UNQUOTED}|[ \t[=])*\"
%%
@@ -113,7 +113,7 @@ LEGACY {MAKEVAR}|{UNQUOTED}|\"({MAKEVAR}|{UNQUOTED}|[ \t[=])*\"
BEGIN(COMMENT);
}
-<COMMENT>.* {
+<COMMENT>[^\0\n]* {
lexer->column += yyleng;
}
@@ -168,7 +168,7 @@ LEGACY {MAKEVAR}|{UNQUOTED}|\"({MAKEVAR}|{UNQUOTED}|[ \t[=])*\"
BEGIN(BRACKET);
}
-<BRACKET,BRACKETEND>. {
+<BRACKET,BRACKETEND>[^\0\n] {
cmListFileLexerAppend(lexer, yytext, yyleng);
lexer->column += yyleng;
BEGIN(BRACKET);
@@ -231,7 +231,7 @@ LEGACY {MAKEVAR}|{UNQUOTED}|\"({MAKEVAR}|{UNQUOTED}|[ \t[=])*\"
return 1;
}
-<STRING>. {
+<STRING>[^\0\n] {
cmListFileLexerAppend(lexer, yytext, yyleng);
lexer->column += yyleng;
}
@@ -439,11 +439,15 @@ static cmListFileLexer_BOM cmListFileLexer_ReadBOM(FILE* f)
if (fread(b, 1, 2, f) == 2 && b[0] == 0 && b[1] == 0) {
return cmListFileLexer_BOM_UTF32LE;
}
- fsetpos(f, &p);
+ if (fsetpos(f, &p) != 0) {
+ return cmListFileLexer_BOM_Broken;
+ }
return cmListFileLexer_BOM_UTF16LE;
}
}
- rewind(f);
+ if (fseek(f, 0, SEEK_SET) != 0) {
+ return cmListFileLexer_BOM_Broken;
+ }
return cmListFileLexer_BOM_None;
}