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Added support for RCINCLUDE directive. Now wrc ignores everything 

except preprocessor directives from included *.h *.c files.
This commit is contained in:
Maciek Kaliszewski 2001-06-04 03:09:11 +00:00 committed by Alexandre Julliard
parent 22507a018d
commit d7c69a5d5f
2 changed files with 60 additions and 7 deletions
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52
tools/wrc/ppl.l
View File

@ -131,6 +131,7 @@
%x pp_line
%x pp_defined
%x pp_ignore
%x RCINCL
ws [ \v\f\t\r]
cident [a-zA-Z_][0-9a-zA-Z_]*
@ -190,6 +191,7 @@ typedef struct bufferstackentry {
char *include_filename;
int include_ifdepth;
int seen_junk;
int pass_data;
} bufferstackentry_t;
#define ALLOCBLOCKSIZE (1 << 10) /* Allocate these chunks at a time for string-buffers */
@ -260,6 +262,8 @@ static int macexpstackidx = 0;
static bufferstackentry_t bufferstack[MAXBUFFERSTACK];
static int bufferstackidx = 0;
static int pass_data=1;
/*
* Global variables
*/
@ -509,7 +513,7 @@ includelogicentry_t *includelogiclist = NULL;
/*
* Comment handling (almost all start-conditions)
*/
<INITIAL,pp_pp,pp_ignore,pp_eol,pp_inc,pp_if,pp_ifd,pp_defined,pp_def,pp_define,pp_macro,pp_mbody>"/*" yy_push_state(pp_comment);
<INITIAL,pp_pp,pp_ignore,pp_eol,pp_inc,pp_if,pp_ifd,pp_defined,pp_def,pp_define,pp_macro,pp_mbody,RCINCL>"/*" yy_push_state(pp_comment);
<pp_comment>[^*\n]*|"*"+[^*/\n]* ;
<pp_comment>\n newline(0);
<pp_comment>"*"+"/" yy_pop_state();
@ -517,7 +521,7 @@ includelogicentry_t *includelogiclist = NULL;
/*
* Remove C++ style comment (almost all start-conditions)
*/
<INITIAL,pp_pp,pp_ignore,pp_eol,pp_inc,pp_if,pp_ifd,pp_defined,pp_def,pp_define,pp_macro,pp_mbody,pp_macscan>"//"[^\n]* {
<INITIAL,pp_pp,pp_ignore,pp_eol,pp_inc,pp_if,pp_ifd,pp_defined,pp_def,pp_define,pp_macro,pp_mbody,pp_macscan,RCINCL>"//"[^\n]* {
if(pptext[ppleng-1] == '\\')
ppwarning("C++ style comment ends with an escaped newline (escape ignored)");
}
@ -538,6 +542,8 @@ includelogicentry_t *includelogiclist = NULL;
case pp_mbody:
case pp_inc:
case pp_line:
case RCINCL:
if (yy_current_state()==RCINCL) yy_pop_state();
pplval.cptr = get_string();
return tDQSTRING;
default:
@ -613,8 +619,13 @@ includelogicentry_t *includelogiclist = NULL;
pplval.cptr = xstrdup(pptext);
return tIDENT;
}
else
put_buffer(pptext, ppleng);
else {
if((yy_current_state()==INITIAL) && (strcasecmp(pptext,"RCINCLUDE")==0)){
yy_push_state(RCINCL);
return tRCINCLUDE;
}
else put_buffer(pptext, ppleng);
}
}
else if(!ppp->expanding)
{
@ -652,6 +663,18 @@ includelogicentry_t *includelogiclist = NULL;
*/
<pp_macexp>(\n)|(.)|(\\\r?(\n|.)) put_buffer(pptext, ppleng);
<RCINCL>[A-Za-z0-9_\.\\/]+ {
pplval.cptr=xstrdup(pptext);
yy_pop_state();
return tRCINCLUDEPATH;
}
<RCINCL>{ws}+ ;
<RCINCL>\" {
new_string(); add_string(pptext,ppleng);yy_push_state(pp_dqs);
}
/*
* This is a 'catch-all' rule to discover errors in the scanner
* in an orderly manner.
@ -1164,6 +1187,7 @@ static void push_buffer(pp_entry_t *ppp, char *filename, char *incname, int pop)
bufferstack[bufferstackidx].include_filename = incname;
bufferstack[bufferstackidx].include_ifdepth = include_ifdepth;
bufferstack[bufferstackidx].seen_junk = seen_junk;
bufferstack[bufferstackidx].pass_data = pass_data;
if(ppp)
ppp->expanding = 1;
@ -1229,6 +1253,8 @@ static bufferstackentry_t *pop_buffer(void)
include_ppp = bufferstack[bufferstackidx].include_ppp;
include_ifdepth = bufferstack[bufferstackidx].include_ifdepth;
seen_junk = bufferstack[bufferstackidx].seen_junk;
pass_data = bufferstack[bufferstackidx].pass_data;
}
}
@ -1386,8 +1412,10 @@ static void put_buffer(char *s, int len)
{
if(top_macro())
add_text_to_macro(s, len);
else
else {
if(pass_data)
fwrite(s, 1, len, ppout);
}
}
@ -1396,6 +1424,15 @@ static void put_buffer(char *s, int len)
* Include management
*-------------------------------------------------------------------------
*/
int is_c_h_include(char *fname)
{
int sl=strlen(fname);
if (sl < 2) return 0;
if ((toupper(fname[sl-1])!='H') && (toupper(fname[sl-1])!='C')) return 0;
if (fname[sl-2]!='.') return 0;
return 1;
}
void do_include(char *fname, int type)
{
char *newpath;
@ -1431,8 +1468,11 @@ void do_include(char *fname, int type)
seen_junk = 0;
include_state = 0;
include_ppp = NULL;
if (is_c_h_include(newpath)) pass_data=0;
else pass_data=1;
if(debuglevel & DEBUGLEVEL_PPMSG)
fprintf(stderr, "do_include: %s:%d: include_state=%d, include_ppp='%s', include_ifdepth=%d\n", input_name, line_number, include_state, include_ppp, include_ifdepth);
fprintf(stderr, "do_include: %s:%d: include_state=%d, include_ppp='%s', include_ifdepth=%d ,pass_data=%d\n", input_name, line_number, include_state, include_ppp, include_ifdepth,pass_data);
pp_switch_to_buffer(pp_create_buffer(ppin, YY_BUF_SIZE));
fprintf(ppout, "# 1 \"%s\" 1%s\n", newpath, type ? "" : " 3");

13
tools/wrc/ppy.y
View File

@ -123,6 +123,7 @@ static int nmacro_args;
mtext_t *mtext;
}
%token tRCINCLUDE
%token tIF tIFDEF tIFNDEF tELSE tELIF tENDIF tDEFINED tNL
%token tINCLUDE tLINE tGCCLINE tERROR tWARNING tPRAGMA tPPIDENT
%token tUNDEF tMACROEND tCONCAT tELIPSIS tSTRINGIZE
@ -134,6 +135,8 @@ static int nmacro_args;
%token <slong> tSLONG
%token <ull> tULONGLONG
%token <sll> tSLONGLONG
%token <cptr> tRCINCLUDEPATH
%right '?' ':'
%left tLOGOR
%left tLOGAND
@ -267,6 +270,16 @@ preprocessor
| tWARNING opt_text tNL { ppwarning("#warning directive: '%s'", $2); if($2) free($2); }
| tPRAGMA opt_text tNL { if(pedantic) ppwarning("#pragma ignored (arg: '%s')", $2); if($2) free($2); }
| tPPIDENT opt_text tNL { if(pedantic) ppwarning("#ident ignored (arg: '%s')", $2); if($2) free($2); }
| tRCINCLUDE tRCINCLUDEPATH {
int nl=strlen($2) +3;
char *fn=xmalloc(nl);
snprintf(fn,nl,"\"%s\"",$2);
free($2);
do_include(fn,1);
}
| tRCINCLUDE tDQSTRING {
do_include($2,1);
}
/*| tNL*/
;