619 lines
21 KiB
C
619 lines
21 KiB
C
/*************************************************************************
|
||
*
|
||
* OpenOffice.org - a multi-platform office productivity suite
|
||
*
|
||
* $RCSfile: cpp3.c,v $
|
||
*
|
||
* $Revision: 1.11 $
|
||
*
|
||
* last change: $Author: hr $ $Date: 2006-06-09 12:17:00 $
|
||
*
|
||
* The Contents of this file are made available subject to
|
||
* the terms of GNU Lesser General Public License Version 2.1.
|
||
*
|
||
*
|
||
* GNU Lesser General Public License Version 2.1
|
||
* =============================================
|
||
* Copyright 2005 by Sun Microsystems, Inc.
|
||
* 901 San Antonio Road, Palo Alto, CA 94303, USA
|
||
*
|
||
* This library is free software; you can redistribute it and/or
|
||
* modify it under the terms of the GNU Lesser General Public
|
||
* License version 2.1, as published by the Free Software Foundation.
|
||
*
|
||
* This library is distributed in the hope that it will be useful,
|
||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
* Lesser General Public License for more details.
|
||
*
|
||
* You should have received a copy of the GNU Lesser General Public
|
||
* License along with this library; if not, write to the Free Software
|
||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
||
* MA 02111-1307 USA
|
||
*
|
||
************************************************************************/
|
||
|
||
#include <stdio.h>
|
||
#ifdef UNX
|
||
#include <stdlib.h>
|
||
#endif
|
||
#include <ctype.h>
|
||
#include "cppdef.h"
|
||
#include "cpp.h"
|
||
|
||
#include "time.h" /* BP */
|
||
|
||
#ifndef _STRING_H
|
||
#include <string.h>
|
||
#endif
|
||
|
||
#ifndef _NO_PROTO
|
||
int AddInclude( char *pIncStr ); /* BP, 11.09.91, Forward-Deklaration */
|
||
#endif
|
||
|
||
#if (OSL_DEBUG_LEVEL > 1) && (HOST == SYS_VMS || HOST == SYS_UNIX)
|
||
#include <signal.h>
|
||
#endif
|
||
|
||
void InitCpp3()
|
||
{
|
||
}
|
||
|
||
|
||
int
|
||
openfile(filename)
|
||
char *filename;
|
||
/*
|
||
* Open a file, add it to the linked list of open files.
|
||
* This is called only from openfile() above.
|
||
*/
|
||
{
|
||
register FILE *fp;
|
||
|
||
if ((fp = fopen(filename, "r")) == NULL) {
|
||
#if OSL_DEBUG_LEVEL > 1
|
||
if ( debug || !bDumpDefs )
|
||
perror(filename);
|
||
#endif
|
||
return (FALSE);
|
||
}
|
||
#if OSL_DEBUG_LEVEL > 1
|
||
if (debug)
|
||
fprintf(stderr, "Reading from \"%s\"\n", filename);
|
||
#endif
|
||
addfile(fp, filename);
|
||
return (TRUE);
|
||
}
|
||
|
||
void addfile(fp, filename)
|
||
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.)
|
||
*/
|
||
{
|
||
register FILEINFO *file;
|
||
/* #ifndef _NO_PROTO */
|
||
extern FILEINFO *getfile( int bufsize, char *filename ); /* BP */
|
||
/* #endif */
|
||
file = getfile(NBUFF, filename);
|
||
file->fp = fp; /* Better remember FILE * */
|
||
file->buffer[0] = EOS; /* Initialize for first read */
|
||
line = 1; /* Working on line 1 now */
|
||
wrongline = TRUE; /* Force out initial #line */
|
||
}
|
||
|
||
void setincdirs()
|
||
/*
|
||
* Append system-specific directories to the include directory list.
|
||
* Called only when cpp is started.
|
||
*/
|
||
{
|
||
|
||
#ifdef CPP_INCLUDE
|
||
*incend++ = CPP_INCLUDE;
|
||
#define IS_INCLUDE 1
|
||
#else
|
||
#define IS_INCLUDE 0
|
||
#endif
|
||
|
||
#if HOST == SYS_UNIX
|
||
*incend++ = "/usr/include";
|
||
#define MAXINCLUDE (NINCLUDE - 1 - IS_INCLUDE)
|
||
#endif
|
||
|
||
#if HOST == SYS_VMS
|
||
extern char *getenv();
|
||
|
||
if (getenv("C$LIBRARY") != NULL)
|
||
*incend++ = "C$LIBRARY:";
|
||
*incend++ = "SYS$LIBRARY:";
|
||
#define MAXINCLUDE (NINCLUDE - 2 - IS_INCLUDE)
|
||
#endif
|
||
|
||
#if HOST == SYS_RSX
|
||
extern int $$rsts; /* TRUE on RSTS/E */
|
||
extern int $$pos; /* TRUE on PRO-350 P/OS */
|
||
extern int $$vms; /* TRUE on VMS compat. */
|
||
|
||
if ($$pos) { /* P/OS? */
|
||
*incend++ = "SY:[ZZDECUSC]"; /* C #includes */
|
||
*incend++ = "LB:[1,5]"; /* RSX library */
|
||
}
|
||
else if ($$rsts) { /* RSTS/E? */
|
||
*incend++ = "SY:@"; /* User-defined account */
|
||
*incend++ = "C:"; /* Decus-C library */
|
||
*incend++ = "LB:[1,1]"; /* RSX library */
|
||
}
|
||
else if ($$vms) { /* VMS compatibility? */
|
||
*incend++ = "C:";
|
||
}
|
||
else { /* Plain old RSX/IAS */
|
||
*incend++ = "LB:[1,1]";
|
||
}
|
||
#define MAXINCLUDE (NINCLUDE - 3 - IS_INCLUDE)
|
||
#endif
|
||
|
||
#if HOST == SYS_RT11
|
||
extern int $$rsts; /* RSTS/E emulation? */
|
||
|
||
if ($$rsts)
|
||
*incend++ = "SY:@"; /* User-defined account */
|
||
*incend++ = "C:"; /* Decus-C library disk */
|
||
*incend++ = "SY:"; /* System (boot) disk */
|
||
#define MAXINCLUDE (NINCLUDE - 3 - IS_INCLUDE)
|
||
#endif
|
||
|
||
#if HOST == SYS_UNKNOWN
|
||
/*
|
||
* BP: 25.07.91, Kontext: GenMake
|
||
* Unter DOS wird nun auch die Environment-Variable INCLUDE ausgewetet.
|
||
* Es kommt erschwerend hinzu, dass alle Eintraege, die mit ';' getrennt
|
||
* sind, mit in die Liste aufenommen werden muessen.
|
||
* Dies wird mit der Funktion strtok() realisiert.
|
||
* Vorsicht bei der Benutzung von malloc !!!
|
||
* In savestring wird naemlich getmem() verwendet. Vermutlich kommen sich
|
||
* die beiden Funktion in die Quere. Als ich malloc statt savestring
|
||
* verwendete knallte es in strcpy() !
|
||
*/
|
||
|
||
#if !defined( ZTC ) && !defined( WNT ) && !defined(BLC) && ! defined UNX
|
||
extern char *getenv( char *pStr ); /* BP */
|
||
#endif
|
||
char *pIncGetEnv = NULL; /* Pointer auf INCLUDE */
|
||
|
||
if ( ( pIncGetEnv = getenv("INCLUDE") ) != NULL )
|
||
AddInclude( pIncGetEnv );
|
||
|
||
#define MAXINCLUDE (NINCLUDE - 3 - IS_INCLUDE)
|
||
#endif
|
||
|
||
|
||
}
|
||
|
||
/* BP: 11.09.91, Kontext: Erweiterung des INCLUDE-Services
|
||
* Bislang konnte der cpp keine Include-Angaben in der Kommandozeile
|
||
* vertragen, bei denen die directries mit ';' getrennt wurden.
|
||
* Dies ist auch verstaendlich, da dieses cpp fuer UNIX-Systeme
|
||
* massgeschneidert wurde und in UNI die ';' als Zeichen zum Abschluss
|
||
* von Kommandos gilt.
|
||
*/
|
||
|
||
int AddInclude( pIncStr )
|
||
char *pIncStr;
|
||
{
|
||
char *pIncEnv = NULL; /* Kopie des INCLUDE */
|
||
char *pIncPos; /* wandert zum naechsten */
|
||
|
||
pIncEnv = savestring( pIncStr );
|
||
pIncPos = strtok( pIncEnv, ";" );
|
||
|
||
while( pIncPos != NULL )
|
||
{
|
||
if (incend >= &incdir[MAXINCLUDE])
|
||
cfatal("Too many include directories", NULLST);
|
||
*incend++ = pIncPos;
|
||
pIncPos = strtok( NULL, ";" );
|
||
}
|
||
return( 1 );
|
||
}
|
||
|
||
|
||
|
||
|
||
int
|
||
dooptions(argc, argv)
|
||
int argc;
|
||
char *argv[];
|
||
/*
|
||
* dooptions is called to process command line arguments (-Detc).
|
||
* It is called only at cpp startup.
|
||
*/
|
||
{
|
||
register char *ap;
|
||
register DEFBUF *dp;
|
||
register int c;
|
||
int i, j;
|
||
char *arg;
|
||
SIZES *sizp; /* For -S */
|
||
int size; /* For -S */
|
||
int isdatum; /* FALSE for -S* */
|
||
int endtest; /* For -S */
|
||
|
||
for (i = j = 1; i < argc; i++) {
|
||
arg = ap = argv[i];
|
||
|
||
if (*ap++ != '-' || *ap == EOS)
|
||
{
|
||
argv[j++] = argv[i];
|
||
}
|
||
else {
|
||
c = *ap++; /* Option byte */
|
||
if (islower(c)) /* Normalize case */
|
||
c = toupper(c);
|
||
switch (c) { /* Command character */
|
||
case 'C': /* Keep comments */
|
||
cflag = TRUE;
|
||
keepcomments = TRUE;
|
||
break;
|
||
|
||
case 'D': /* Define symbol */
|
||
#if HOST != SYS_UNIX
|
||
/* zap_uc(ap); /* Force define to U.C. */
|
||
#endif
|
||
/*
|
||
* If the option is just "-Dfoo", make it -Dfoo=1
|
||
*/
|
||
while (*ap != EOS && *ap != '=')
|
||
ap++;
|
||
if (*ap == EOS)
|
||
ap = "1";
|
||
else
|
||
*ap++ = EOS;
|
||
/*
|
||
* Now, save the word and its definition.
|
||
*/
|
||
dp = defendel(argv[i] + 2, FALSE);
|
||
dp->repl = savestring(ap);
|
||
dp->nargs = DEF_NOARGS;
|
||
break;
|
||
|
||
case 'E': /* Ignore non-fatal */
|
||
eflag = TRUE; /* errors. */
|
||
break;
|
||
|
||
case 'I': /* Include directory */
|
||
AddInclude( ap ); /* BP, 11.09.91 */
|
||
break;
|
||
|
||
case 'N': /* No predefineds */
|
||
nflag++; /* Repeat to undefine */
|
||
break; /* __LINE__, etc. */
|
||
|
||
case 'S':
|
||
sizp = size_table;
|
||
if ((isdatum = (*ap != '*'))) /* If it's just -S, */
|
||
endtest = T_FPTR; /* Stop here */
|
||
else { /* But if it's -S* */
|
||
ap++; /* Step over '*' */
|
||
endtest = 0; /* Stop at end marker */
|
||
}
|
||
while (sizp->bits != endtest && *ap != EOS) {
|
||
if (!isdigit(*ap)) { /* Skip to next digit */
|
||
ap++;
|
||
continue;
|
||
}
|
||
size = 0; /* Compile the value */
|
||
while (isdigit(*ap)) {
|
||
size *= 10;
|
||
size += (*ap++ - '0');
|
||
}
|
||
if (isdatum)
|
||
sizp->size = size; /* Datum size */
|
||
else
|
||
sizp->psize = size; /* Pointer size */
|
||
sizp++;
|
||
}
|
||
if (sizp->bits != endtest)
|
||
cwarn("-S, too few values specified in %s", argv[i]);
|
||
else if (*ap != EOS)
|
||
cwarn("-S, too many values, \"%s\" unused", ap);
|
||
break;
|
||
|
||
case 'U': /* Undefine symbol */
|
||
#if HOST != SYS_UNIX
|
||
/* zap_uc(ap);*/
|
||
#endif
|
||
if (defendel(ap, TRUE) == NULL)
|
||
cwarn("\"%s\" wasn't defined", ap);
|
||
break;
|
||
|
||
#if OSL_DEBUG_LEVEL > 1
|
||
case 'X': /* Debug */
|
||
debug = (isdigit(*ap)) ? atoi(ap) : 1;
|
||
#if (HOST == SYS_VMS || HOST == SYS_UNIX)
|
||
signal(SIGINT, abort); /* Trap "interrupt" */
|
||
#endif
|
||
fprintf(stderr, "Debug set to %d\n", debug);
|
||
break;
|
||
#endif
|
||
|
||
#if OSL_DEBUG_LEVEL > 1
|
||
case 'P': /* #define's dump */
|
||
bDumpDefs = 1;
|
||
fprintf(stderr, "Dump #define's is on\n");
|
||
break;
|
||
#endif
|
||
|
||
default: /* What is this one? */
|
||
cwarn("Unknown option \"%s\"", arg);
|
||
fprintf(stderr, "The following options are valid:\n\
|
||
-C\t\t\tWrite source file comments to output\n\
|
||
-Dsymbol=value\tDefine a symbol with the given (optional) value\n\
|
||
-Idirectory\t\tAdd a directory to the #include search list\n\
|
||
-N\t\t\tDon't predefine target-specific names\n\
|
||
-Stext\t\tSpecify sizes for #if sizeof\n\
|
||
-Usymbol\t\tUndefine symbol\n");
|
||
#if OSL_DEBUG_LEVEL > 1
|
||
fprintf(stderr, " -Xvalue\t\tSet internal debug flag\n");
|
||
fprintf(stderr, " -P\t\t\tdump #define's\n");
|
||
#endif
|
||
break;
|
||
} /* Switch on all options */
|
||
} /* If it's a -option */
|
||
} /* For all arguments */
|
||
#if OSL_DEBUG_LEVEL > 1
|
||
if ( (bDumpDefs ? j > 4 : j > 3) ) {
|
||
#else
|
||
if (j > 3) {
|
||
#endif
|
||
cerror(
|
||
"Too many file arguments. Usage: cpp [input [output]]",
|
||
NULLST);
|
||
}
|
||
return (j); /* Return new argc */
|
||
}
|
||
|
||
int
|
||
readoptions(char* filename, char*** pfargv)
|
||
{
|
||
FILE *fp;
|
||
int c;
|
||
int bInQuotes = 0;
|
||
char optbuff[1024], *poptbuff;
|
||
int fargc=0, back;
|
||
char *fargv[PARALIMIT], **pfa;
|
||
|
||
pfa=*pfargv=malloc(sizeof(fargv));
|
||
|
||
poptbuff=&optbuff[0];
|
||
filename++;
|
||
if ((fp = fopen(filename, "r")) == NULL) {
|
||
#if OSL_DEBUG_LEVEL > 1
|
||
if ( debug || !bDumpDefs )
|
||
perror(filename);
|
||
#endif
|
||
return (FALSE);
|
||
}
|
||
do
|
||
{
|
||
/*
|
||
* #i27914# double ticks '"' now have a duplicate function:
|
||
* 1. they define a string ( e.g. -DFOO="baz" )
|
||
* 2. a string can contain spaces, so -DFOO="baz zum" defines one
|
||
* argument no two !
|
||
*/
|
||
c=fgetc(fp);
|
||
if ( c != ' ' && c != CR && c != NL && c != HT && c != EOF)
|
||
{
|
||
*poptbuff++=c;
|
||
if( c == '"' )
|
||
bInQuotes = ~bInQuotes;
|
||
}
|
||
else
|
||
{
|
||
if( c != EOF && bInQuotes )
|
||
*poptbuff++=c;
|
||
else
|
||
{
|
||
*poptbuff=EOS;
|
||
if (strlen(optbuff)>0)
|
||
{
|
||
pfa[fargc+1]=malloc(strlen(optbuff)+1);
|
||
strcpy(pfa[fargc+1],optbuff);
|
||
fargc++;
|
||
pfa[fargc+1]=0;
|
||
poptbuff=&optbuff[0];
|
||
}
|
||
}
|
||
}
|
||
}
|
||
while ( c != EOF );
|
||
|
||
fclose(fp);
|
||
back=dooptions(fargc+1,pfa);
|
||
|
||
return (back);
|
||
}
|
||
|
||
|
||
|
||
#if HOST != SYS_UNIX
|
||
FILE_LOCAL void
|
||
zap_uc(ap)
|
||
register char *ap;
|
||
/*
|
||
* Dec operating systems mangle upper-lower case in command lines.
|
||
* This routine forces the -D and -U arguments to uppercase.
|
||
* It is called only on cpp startup by dooptions().
|
||
*/
|
||
{
|
||
while (*ap != EOS) {
|
||
/*
|
||
* Don't use islower() here so it works with Multinational
|
||
*/
|
||
if (*ap >= 'a' && *ap <= 'z')
|
||
*ap = toupper(*ap);
|
||
ap++;
|
||
}
|
||
}
|
||
#endif
|
||
|
||
void initdefines()
|
||
/*
|
||
* 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__, and __DATE__ are always present.
|
||
*/
|
||
{
|
||
register char **pp;
|
||
register char *tp;
|
||
register DEFBUF *dp;
|
||
int i;
|
||
long tvec;
|
||
|
||
#if !defined( ZTC ) && !defined( WNT ) && !defined(BLC) && !defined(G3)
|
||
extern char *ctime();
|
||
#endif
|
||
|
||
/*
|
||
* Predefine the built-in symbols. Allow the
|
||
* implementor to pre-define a symbol as "" to
|
||
* eliminate it.
|
||
*/
|
||
if (nflag == 0) {
|
||
for (pp = preset; *pp != NULL; pp++) {
|
||
if (*pp[0] != EOS) {
|
||
dp = defendel(*pp, FALSE);
|
||
dp->repl = savestring("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 (nflag < 2) {
|
||
for (pp = magic, i = DEF_NOARGS; *pp != NULL; pp++) {
|
||
dp = defendel(*pp, FALSE);
|
||
dp->nargs = --i;
|
||
}
|
||
#if OK_DATE
|
||
/*
|
||
* Define __DATE__ as today's date.
|
||
*/
|
||
dp = defendel("__DATE__", FALSE);
|
||
dp->repl = tp = getmem(27);
|
||
dp->nargs = DEF_NOARGS;
|
||
#ifdef MAC /* MA */
|
||
time( (time_t*)&tvec);
|
||
#else
|
||
time(&tvec);
|
||
#endif
|
||
*tp++ = '"';
|
||
strcpy(tp, ctime(&tvec));
|
||
tp[24] = '"'; /* Overwrite newline */
|
||
#endif
|
||
}
|
||
}
|
||
|
||
#if HOST == SYS_VMS
|
||
/*
|
||
* getredirection() is intended to aid in porting C programs
|
||
* to VMS (Vax-11 C) which does not support '>' and '<'
|
||
* I/O redirection. With suitable modification, it may
|
||
* useful for other portability problems as well.
|
||
*/
|
||
|
||
int
|
||
getredirection(argc, argv)
|
||
int argc;
|
||
char **argv;
|
||
/*
|
||
* Process vms redirection arg's. Exit if any error is seen.
|
||
* If getredirection() processes an argument, it is erased
|
||
* from the vector. getredirection() returns a new argc value.
|
||
*
|
||
* Warning: do not try to simplify the code for vms. The code
|
||
* presupposes that getredirection() is called before any data is
|
||
* read from stdin or written to stdout.
|
||
*
|
||
* Normal usage is as follows:
|
||
*
|
||
* main(argc, argv)
|
||
* int argc;
|
||
* char *argv[];
|
||
* {
|
||
* argc = getredirection(argc, argv);
|
||
* }
|
||
*/
|
||
{
|
||
register char *ap; /* Argument pointer */
|
||
int i; /* argv[] index */
|
||
int j; /* Output index */
|
||
int file; /* File_descriptor */
|
||
extern int errno; /* Last vms i/o error */
|
||
|
||
for (j = i = 1; i < argc; i++) { /* Do all arguments */
|
||
switch (*(ap = argv[i])) {
|
||
case '<': /* <file */
|
||
if (freopen(++ap, "r", stdin) == NULL) {
|
||
perror(ap); /* Can't find file */
|
||
exit(errno); /* Is a fatal error */
|
||
}
|
||
break;
|
||
|
||
case '>': /* >file or >>file */
|
||
if (*++ap == '>') { /* >>file */
|
||
/*
|
||
* If the file exists, and is writable by us,
|
||
* call freopen to append to the file (using the
|
||
* file's current attributes). Otherwise, create
|
||
* a new file with "vanilla" attributes as if the
|
||
* argument was given as ">filename".
|
||
* access(name, 2) returns zero if we can write on
|
||
* the specified file.
|
||
*/
|
||
if (access(++ap, 2) == 0) {
|
||
if (freopen(ap, "a", stdout) != NULL)
|
||
break; /* Exit case statement */
|
||
perror(ap); /* Error, can't append */
|
||
exit(errno); /* After access test */
|
||
} /* If file accessable */
|
||
}
|
||
/*
|
||
* On vms, we want to create the file using "standard"
|
||
* record attributes. creat(...) creates the file
|
||
* using the caller's default protection mask and
|
||
* "variable length, implied carriage return"
|
||
* attributes. dup2() associates the file with stdout.
|
||
*/
|
||
if ((file = creat(ap, 0, "rat=cr", "rfm=var")) == -1
|
||
|| dup2(file, fileno(stdout)) == -1) {
|
||
perror(ap); /* Can't create file */
|
||
exit(errno); /* is a fatal error */
|
||
} /* If '>' creation */
|
||
break; /* Exit case test */
|
||
|
||
default:
|
||
argv[j++] = ap; /* Not a redirector */
|
||
break; /* Exit case test */
|
||
}
|
||
} /* For all arguments */
|
||
argv[j] = NULL; /* Terminate argv[] */
|
||
return (j); /* Return new argc */
|
||
}
|
||
#endif
|
||
|