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Macros can be expanded in quoted strings.

This commit is contained in:
steve 2003-02-03 00:28:12 +00:00
parent a45803f00f
commit d188e5cd2e
1 changed files with 12 additions and 8 deletions
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20
ivlpp/lexor.lex
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@ -19,7 +19,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/ */
#if !defined(WINNT) && !defined(macintosh) #if !defined(WINNT) && !defined(macintosh)
#ident "$Id: lexor.lex,v 1.37 2003/02/02 23:54:35 steve Exp $" #ident "$Id: lexor.lex,v 1.38 2003/02/03 00:28:12 steve Exp $"
#endif #endif
# include "config.h" # include "config.h"
@ -116,20 +116,25 @@ W [ \t\b\f]+
<CCOMMENT>"*/" { BEGIN(comment_enter); ECHO; } <CCOMMENT>"*/" { BEGIN(comment_enter); ECHO; }
/* Detect and pass multiline pragma comments. As with C-style /* Detect and pass multiline pragma comments. As with C-style
comments, pragma comments are passed through, and CPP directives comments, pragma comments are passed through, and preprocessor
contained within are ignored. */ directives contained within are ignored. Contains macros are
expanded, however. */
"(*" { comment_enter = YY_START; BEGIN(PCOMENT); ECHO; } "(*" { comment_enter = YY_START; BEGIN(PCOMENT); ECHO; }
<PCOMENT>. { ECHO; } <PCOMENT>. { ECHO; }
<PCOMENT>\n { istack->lineno += 1; ECHO; } <PCOMENT>\n { istack->lineno += 1; ECHO; }
<PCOMENT>"*)" { BEGIN(comment_enter); ECHO; } <PCOMENT>"*)" { BEGIN(comment_enter); ECHO; }
<PCOMENT>`[a-zA-Z][a-zA-Z0-9_$]* { def_match(); }
/* Strings do not contain macros or preprocessor directives. */ /* Strings do not contain preprocessor directives, but can expand
macros. If that happens, they get expanded in the context of the
string. */
\" { comment_enter = YY_START; BEGIN(CSTRING); ECHO; } \" { comment_enter = YY_START; BEGIN(CSTRING); ECHO; }
<CSTRING>\\\" { yymore(); } <CSTRING>\\\" { ECHO; }
<CSTRING>\n { yymore(); } <CSTRING>\n { ECHO; }
<CSTRING>\" { BEGIN(comment_enter); ECHO; } <CSTRING>\" { BEGIN(comment_enter); ECHO; }
<CSTRING>. { yymore(); } <CSTRING>. { ECHO; }
<CSTRING>`[a-zA-Z][a-zA-Z0-9_$]* { def_match(); }
/* This set of patterns matches the include directive and the name /* This set of patterns matches the include directive and the name
that follows it. when the directive ends, the do_include function that follows it. when the directive ends, the do_include function
@ -306,7 +311,6 @@ static int is_defined(const char*name)
static void def_match() static void def_match()
{ {
struct define_t*cur = def_lookup(yytext+1); struct define_t*cur = def_lookup(yytext+1);
if (cur) { if (cur) {
struct include_stack_t*isp; struct include_stack_t*isp;