office-gobmx/rsc/source/rscpp/cpp3.c
Norbert Thiebaud 982fcf11b7 Revert "tdf#91794 remove OSL_DEBUG_LEVEL > 1 conditionals"
This reverts commit 0c3ff8ca07.
that was breaking debug and dbgutil build on windows (at least)

Change-Id: Ide58bd4551029bb4e1ef791bb65ad191fbb25cae
2016-03-13 22:12:53 -05:00

450 lines
13 KiB
C

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <stdio.h>
#ifdef UNX
#include <stdlib.h>
#endif
#include <ctype.h>
#include "cppdef.h"
#include "cpp.h"
#include "time.h" /* BP */
#include <string.h>
#if (OSL_DEBUG_LEVEL > 1) && (HOST == SYS_UNIX)
#include <signal.h>
#endif
/*
* Open a file, add it to the linked list of open files.
* This is called only from openfile() above.
*/
int openfile(char* filename)
{
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);
}
/*
* 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.)
*/
void addfile(FILE* fp, char* filename)
{
FILEINFO* file;
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 */
}
/*
* Append system-specific directories to the include directory list.
* Called only when cpp is started.
*/
void setincdirs()
{
#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_UNKNOWN
/*
* 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(_WIN32) && !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
}
/* 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( 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, ";" );
}
/* coverity[leaked_storage] - we know this leaks, but it doesn't matter in this short lived utility */
return 1;
}
/*
* dooptions is called to process command line arguments (-Detc).
* It is called only at cpp startup.
*/
int dooptions(int argc, char** argv)
{
char* ap;
DEFBUF* dp;
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 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 (0 != (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 (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_UNIX)
signal(SIGINT, (void (*)(int)) 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];
char* poptbuff;
int fargc=0;
int back;
char* fargv[PARALIMIT];
char** 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++ = (char)c;
if( c == '"' )
bInQuotes = ~bInQuotes;
}
else
{
if( c != EOF && bInQuotes )
*poptbuff++ = (char)c;
else
{
*poptbuff = EOS;
if (optbuff[0] != '\0')
{
pfa[fargc + 1] = strdup(optbuff);
fargc++;
pfa[fargc + 1] = NULL;
poptbuff = &optbuff[0];
}
}
}
}
while ( c != EOF );
fclose(fp);
back=dooptions(fargc+1,pfa);
return (back);
}
#if HOST != SYS_UNIX
/*
* 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().
*/
FILE_LOCAL void zap_uc(char* ap)
{
while (*ap != EOS)
{
/*
* Don't use islower() here so it works with Multinational
*/
if (*ap >= 'a' && *ap <= 'z')
*ap = (char)toupper(*ap);
ap++;
}
}
#endif
/*
* 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 suppressed by the -N option.
* __LINE__, __FILE__, and __DATE__ are always present.
*/
void initdefines()
{
char** pp;
char* tp;
DEFBUF* dp;
int i;
time_t tvec;
/*
* 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;
time( &tvec);
*tp++ = '"';
strcpy(tp, ctime(&tvec));
tp[24] = '"'; /* Overwrite newline */
#endif
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */