402 lines
12 KiB
C
402 lines
12 KiB
C
/******************************************************************************
|
|
Copyright (c) 1999 Daniel Stenberg
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this software and associated documentation files (the "Software"), to deal
|
|
in the Software without restriction, including without limitation the rights
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
copies of the Software, and to permit persons to whom the Software is
|
|
furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
SOFTWARE.
|
|
******************************************************************************/
|
|
#include <stdio.h>
|
|
#include <ctype.h>
|
|
#include <time.h> /*OIS*0.92*/
|
|
#include "cppdef.h"
|
|
#include "cpp.h"
|
|
|
|
ReturnCode openfile(struct Global *global, char *filename)
|
|
{
|
|
/*
|
|
* Open a file, add it to the linked list of open files.
|
|
* This is called only from openfile() in cpp2.c.
|
|
*/
|
|
|
|
FILE *fp;
|
|
ReturnCode ret;
|
|
|
|
if ((fp = fopen(filename, "r")) == NULL)
|
|
ret=FPP_OPEN_ERROR;
|
|
else
|
|
ret=addfile(global, fp, filename);
|
|
|
|
if(!ret && global->depends) {
|
|
global->depends(filename, global->userdata);
|
|
}
|
|
|
|
if(!ret && global->showincluded) {
|
|
/* no error occured! */
|
|
Error(global, "cpp: included \"");
|
|
Error(global, filename);
|
|
Error(global, "\"\n");
|
|
}
|
|
return(ret);
|
|
}
|
|
|
|
ReturnCode addfile(struct Global *global,
|
|
FILE *fp, /* Open file pointer */
|
|
char *filename) /* Name of the file */
|
|
{
|
|
/*
|
|
* Initialize tables for this open file. This is called from openfile()
|
|
* above (for #include files), and from the entry to cpp to open the main
|
|
* input file. It calls a common routine, getfile() to build the FILEINFO
|
|
* structure which is used to read characters. (getfile() is also called
|
|
* to setup a macro replacement.)
|
|
*/
|
|
|
|
FILEINFO *file;
|
|
ReturnCode ret;
|
|
|
|
ret = getfile(global, NBUFF, filename, &file);
|
|
if(ret)
|
|
return(ret);
|
|
file->fp = fp; /* Better remember FILE * */
|
|
file->buffer[0] = EOS; /* Initialize for first read */
|
|
global->line = 1; /* Working on line 1 now */
|
|
global->wrongline = TRUE; /* Force out initial #line */
|
|
return(FPP_OK);
|
|
}
|
|
|
|
int dooptions(struct Global *global, struct fppTag *tags)
|
|
{
|
|
/*
|
|
* dooptions is called to process command line arguments (-Detc).
|
|
* It is called only at cpp startup.
|
|
*/
|
|
DEFBUF *dp;
|
|
char end=FALSE; /* end of taglist */
|
|
|
|
while(tags && !end) {
|
|
switch(tags->tag) {
|
|
case FPPTAG_END:
|
|
end=TRUE;
|
|
break;
|
|
case FPPTAG_INITFUNC:
|
|
global->initialfunc = (char *) tags->data;
|
|
break;
|
|
case FPPTAG_DISPLAYFUNCTIONS:
|
|
global->outputfunctions = tags->data?1:0;
|
|
break;
|
|
case FPPTAG_RIGHTCONCAT:
|
|
global->rightconcat = tags->data?1:0;
|
|
break;
|
|
case FPPTAG_OUTPUTMAIN:
|
|
global->outputfile = tags->data?1:0;
|
|
break;
|
|
case FPPTAG_NESTED_COMMENTS:
|
|
global->nestcomments = tags->data?1:0;
|
|
break;
|
|
case FPPTAG_WARNMISSINCLUDE:
|
|
global->warnnoinclude = tags->data?1:0;
|
|
break;
|
|
case FPPTAG_WARN_NESTED_COMMENTS:
|
|
global->warnnestcomments = tags->data?1:0;
|
|
break;
|
|
case FPPTAG_OUTPUTSPACE:
|
|
global->showspace = tags->data?1:0;
|
|
break;
|
|
case FPPTAG_OUTPUTBALANCE:
|
|
global->showbalance = tags->data?1:0;
|
|
break;
|
|
case FPPTAG_OUTPUTINCLUDES:
|
|
global->showincluded = tags->data?1:0;
|
|
break;
|
|
case FPPTAG_IGNOREVERSION:
|
|
global->showversion = tags->data?1:0;
|
|
break;
|
|
case FPPTAG_WARNILLEGALCPP:
|
|
global->warnillegalcpp = tags->data?1:0;
|
|
break;
|
|
case FPPTAG_OUTPUTLINE:
|
|
global->outputLINE = tags->data?1:0;
|
|
break;
|
|
case FPPTAG_KEEPCOMMENTS:
|
|
if(tags->data) {
|
|
global->cflag = TRUE;
|
|
global->keepcomments = TRUE;
|
|
}
|
|
break;
|
|
case FPPTAG_DEFINE:
|
|
/*
|
|
* If the option is just "-Dfoo", make it -Dfoo=1
|
|
*/
|
|
{
|
|
char *symbol=(char *)tags->data;
|
|
char *text=symbol;
|
|
while (*text != EOS && *text != '=')
|
|
text++;
|
|
if (*text == EOS)
|
|
text = "1";
|
|
else
|
|
*text++ = EOS;
|
|
/*
|
|
* Now, save the word and its definition.
|
|
*/
|
|
dp = defendel(global, symbol, FALSE);
|
|
if(!dp)
|
|
return(FPP_OUT_OF_MEMORY);
|
|
dp->repl = savestring(global, text);
|
|
dp->nargs = DEF_NOARGS;
|
|
}
|
|
break;
|
|
case FPPTAG_IGNORE_NONFATAL:
|
|
global->eflag = TRUE;
|
|
break;
|
|
case FPPTAG_INCLUDE_DIR:
|
|
if (global->incend >= &global->incdir[NINCLUDE]) {
|
|
cfatal(global, FATAL_TOO_MANY_INCLUDE_DIRS);
|
|
return(FPP_TOO_MANY_INCLUDE_DIRS);
|
|
}
|
|
*global->incend++ = (char *)tags->data;
|
|
break;
|
|
case FPPTAG_INCLUDE_FILE:
|
|
case FPPTAG_INCLUDE_MACRO_FILE:
|
|
if (global->included >= NINCLUDE) {
|
|
cfatal(global, FATAL_TOO_MANY_INCLUDE_FILES);
|
|
return(FPP_TOO_MANY_INCLUDE_FILES);
|
|
}
|
|
global->include[(unsigned)global->included] = (char *)tags->data;
|
|
|
|
global->includeshow[(unsigned)global->included] =
|
|
(tags->tag == FPPTAG_INCLUDE_FILE);
|
|
|
|
global->included++;
|
|
break;
|
|
case FPPTAG_BUILTINS:
|
|
global->nflag|=(tags->data?NFLAG_BUILTIN:0);
|
|
break;
|
|
case FPPTAG_PREDEFINES:
|
|
global->nflag|=(tags->data?NFLAG_PREDEFINE:0);
|
|
break;
|
|
case FPPTAG_IGNORE_CPLUSPLUS:
|
|
global->cplusplus=!tags->data;
|
|
break;
|
|
case FPPTAG_SIZEOF_TABLE:
|
|
{
|
|
SIZES *sizp; /* For -S */
|
|
int size; /* For -S */
|
|
int isdatum; /* FALSE for -S* */
|
|
int endtest; /* For -S */
|
|
|
|
char *text=(char *)tags->data;
|
|
|
|
sizp = size_table;
|
|
if ((isdatum = (*text != '*'))) /* If it's just -S, */
|
|
endtest = T_FPTR; /* Stop here */
|
|
else { /* But if it's -S* */
|
|
text++; /* Step over '*' */
|
|
endtest = 0; /* Stop at end marker */
|
|
}
|
|
while (sizp->bits != endtest && *text != EOS) {
|
|
if (!isdigit(*text)) { /* Skip to next digit */
|
|
text++;
|
|
continue;
|
|
}
|
|
size = 0; /* Compile the value */
|
|
while (isdigit(*text)) {
|
|
size *= 10;
|
|
size += (*text++ - '0');
|
|
}
|
|
if (isdatum)
|
|
sizp->size = size; /* Datum size */
|
|
else
|
|
sizp->psize = size; /* Pointer size */
|
|
sizp++;
|
|
}
|
|
if (sizp->bits != endtest)
|
|
cwarn(global, WARN_TOO_FEW_VALUES_TO_SIZEOF, NULL);
|
|
else if (*text != EOS)
|
|
cwarn(global, WARN_TOO_MANY_VALUES_TO_SIZEOF, NULL);
|
|
}
|
|
break;
|
|
case FPPTAG_UNDEFINE:
|
|
if (defendel(global, (char *)tags->data, TRUE) == NULL)
|
|
cwarn(global, WARN_NOT_DEFINED, tags->data);
|
|
break;
|
|
case FPPTAG_OUTPUT_DEFINES:
|
|
global->wflag++;
|
|
break;
|
|
case FPPTAG_INPUT_NAME:
|
|
strcpy(global->work, tags->data); /* Remember input filename */
|
|
global->first_file=tags->data;
|
|
break;
|
|
case FPPTAG_DEPENDS:
|
|
global->depends=(void (*)(char *, void *))tags->data;
|
|
break;
|
|
case FPPTAG_INPUT:
|
|
global->input=(char *(*)(char *, int, void *))tags->data;
|
|
break;
|
|
case FPPTAG_OUTPUT:
|
|
global->output=(void (*)(int, void *))tags->data;
|
|
break;
|
|
case FPPTAG_ERROR:
|
|
global->error=(void (*)(void *, char *, va_list))tags->data;
|
|
break;
|
|
case FPPTAG_USERDATA:
|
|
global->userdata=tags->data;
|
|
break;
|
|
case FPPTAG_LINE:
|
|
global->linelines= tags->data?1:0;
|
|
break;
|
|
case FPPTAG_EXCLFUNC:
|
|
global->excludedinit[ global->excluded++ ] = (char *)tags->data;
|
|
break;
|
|
case FPPTAG_WEBMODE:
|
|
global->webmode=(tags->data?1:0);
|
|
break;
|
|
default:
|
|
cwarn(global, WARN_INTERNAL_ERROR, NULL);
|
|
break;
|
|
}
|
|
tags++;
|
|
}
|
|
return(0);
|
|
}
|
|
|
|
ReturnCode initdefines(struct Global *global)
|
|
{
|
|
/*
|
|
* Initialize the built-in #define's. There are two flavors:
|
|
* #define decus 1 (static definitions)
|
|
* #define __FILE__ ?? (dynamic, evaluated by magic)
|
|
* Called only on cpp startup.
|
|
*
|
|
* Note: the built-in static definitions are supressed by the -N option.
|
|
* __LINE__, __FILE__, __TIME__ and __DATE__ are always present.
|
|
*/
|
|
|
|
char **pp;
|
|
char *tp;
|
|
DEFBUF *dp;
|
|
struct tm *tm;
|
|
|
|
int i;
|
|
time_t tvec;
|
|
|
|
static char months[12][4] = {
|
|
"Jan", "Feb", "Mar", "Apr", "May", "Jun",
|
|
"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
|
|
};
|
|
|
|
/*
|
|
* Predefine the built-in symbols. Allow the
|
|
* implementor to pre-define a symbol as "" to
|
|
* eliminate it.
|
|
*/
|
|
if (!(global->nflag & NFLAG_BUILTIN)) {
|
|
for (pp = global->preset; *pp != NULL; pp++) {
|
|
if (*pp[0] != EOS) {
|
|
dp = defendel(global, *pp, FALSE);
|
|
if(!dp)
|
|
return(FPP_OUT_OF_MEMORY);
|
|
dp->repl = savestring(global, "1");
|
|
dp->nargs = DEF_NOARGS;
|
|
}
|
|
}
|
|
}
|
|
/*
|
|
* The magic pre-defines (__FILE__ and __LINE__ are
|
|
* initialized with negative argument counts. expand()
|
|
* notices this and calls the appropriate routine.
|
|
* DEF_NOARGS is one greater than the first "magic" definition.
|
|
*/
|
|
if (!(global->nflag & NFLAG_PREDEFINE)) {
|
|
for (pp = global->magic, i = DEF_NOARGS; *pp != NULL; pp++) {
|
|
dp = defendel(global, *pp, FALSE);
|
|
if(!dp)
|
|
return(FPP_OUT_OF_MEMORY);
|
|
dp->nargs = --i;
|
|
}
|
|
#if OK_DATE
|
|
/*
|
|
* Define __DATE__ as today's date.
|
|
*/
|
|
dp = defendel(global, "__DATE__", FALSE);
|
|
tp = malloc(14);
|
|
if(!tp || !dp)
|
|
return(FPP_OUT_OF_MEMORY);
|
|
dp->repl = tp;
|
|
dp->nargs = DEF_NOARGS;
|
|
time(&tvec);
|
|
tm = localtime(&tvec);
|
|
sprintf(tp, "\"%3s %2d %4d\"", /* "Aug 20 1988" */
|
|
months[tm->tm_mon],
|
|
tm->tm_mday,
|
|
tm->tm_year + 1900);
|
|
|
|
/*
|
|
* Define __TIME__ as this moment's time.
|
|
*/
|
|
dp = defendel(global, "__TIME__", FALSE);
|
|
tp = malloc(11);
|
|
if(!tp || !dp)
|
|
return(FPP_OUT_OF_MEMORY);
|
|
dp->repl = tp;
|
|
dp->nargs = DEF_NOARGS;
|
|
sprintf(tp, "\"%2d:%02d:%02d\"", /* "20:42:31" */
|
|
tm->tm_hour,
|
|
tm->tm_min,
|
|
tm->tm_sec);
|
|
#endif
|
|
}
|
|
return(FPP_OK);
|
|
}
|
|
|
|
void delbuiltindefines(struct Global *global)
|
|
{
|
|
/*
|
|
* Delete the built-in #define's.
|
|
*/
|
|
char **pp;
|
|
|
|
|
|
/*
|
|
* Delete the built-in symbols, unless -WW.
|
|
*/
|
|
if (global->wflag < 2) {
|
|
for (pp = global->preset; *pp != NULL; pp++) {
|
|
defendel(global, *pp, TRUE);
|
|
}
|
|
}
|
|
/*
|
|
* The magic pre-defines __FILE__ and __LINE__
|
|
*/
|
|
for (pp = global->magic; *pp != NULL; pp++) {
|
|
defendel(global, *pp, TRUE);
|
|
}
|
|
#if OK_DATE
|
|
/*
|
|
* Undefine __DATE__.
|
|
*/
|
|
defendel(global, "__DATE__", TRUE);
|
|
|
|
/*
|
|
* Undefine __TIME__.
|
|
*/
|
|
defendel(global, "__TIME__", TRUE);
|
|
#endif
|
|
return;
|
|
}
|
|
|