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/*
* SOFTWARE RIGHTS
*
* We reserve no LEGAL rights to the Purdue Compiler Construction Tool
* Set (PCCTS) -- PCCTS is in the public domain. An individual or
* company may do whatever they wish with source code distributed with
* PCCTS or the code generated by PCCTS, including the incorporation of
* PCCTS, or its output, into commerical software.
*
* We encourage users to develop software with PCCTS. However, we do ask
* that credit is given to us for developing PCCTS. By "credit",
* we mean that if you incorporate our source code into one of your
* programs (commercial product, research project, or otherwise) that you
* acknowledge this fact somewhere in the documentation, research report,
* etc... If you like PCCTS and have developed a nice tool with the
* output, please mention that you developed it using PCCTS. In
* addition, we ask that this header remain intact in our source code.
* As long as these guidelines are kept, we expect to continue enhancing
* this system and expect to make other tools available as they are
* completed.
*
* DLG 1.33
* Will Cohen
* With mods by Terence Parr; AHPCRC, University of Minnesota
* 1989-2001
*/
#include <stdio.h>
#include <string.h>
#include "dlg.h"
#ifdef MEMCHK
#include "trax.h"
#else
#ifdef __STDC__
#include <stdlib.h>
#else
#include <malloc.h>
#endif /* __STDC__ */
#endif
int err_found = 0; /* indicates whether problem found */
#ifdef __USE_PROTOS
void internal_error(char *s, char *file,int line) /* MR9 23-Sep-97 */
#else
void internal_error(s,file,line) /* MR9 23-Sep-97 */
char *s,*file;
int line;
#endif
{
fprintf(stderr,s,file,line);
exit(PCCTS_EXIT_FAILURE);
}
#ifdef __USE_PROTOS
char *dlg_malloc(int bytes,char *file,int line)
#else
char *dlg_malloc(bytes,file,line)
int bytes;
char *file;
int line;
#endif
{
char *t;
t = (char *) malloc(bytes);
if (!t){
/* error */
internal_error("%s(%d): unable to allocate memory\n",
file,line);
}
return t;
}
#ifdef __USE_PROTOS
char *dlg_calloc(int n,int bytes,char *file,int line)
#else
char *dlg_calloc(n,bytes,file,line)
int n,bytes;
char *file;
int line;
#endif
{
char *t;
t = (char *) calloc(n,bytes);
if (!t){
/* error */
internal_error("%s(%d): unable to allocate memory\n",
file,line);
}
return t;
}
#ifdef __USE_PROTOS
FILE *read_stream(char *name)
#else
FILE *read_stream(name)
char *name;
#endif
{
FILE *f;
if (name){
if (name[0] == '-') {
fprintf(stderr, "dlg: invalid option: '%s'\n", name);
f = NULL;
}else{
f = fopen(name, "r");
if (f == NULL){
/* couldn't open file */
fprintf(stderr,
"dlg: Warning: Can't read file %s.\n",
name);
}
}
}else{
/* open stdin if nothing there */
f = stdin;
}
return f;
}
#ifdef __USE_PROTOS
FILE *write_stream(char *name)
#else
FILE *write_stream(name)
char *name;
#endif
{
FILE *f;
if (name){
if (name[0] == '-') {
fprintf(stderr, "dlg: invalid option: '%s'\n", name);
f = NULL;
}else{
f = fopen(OutMetaName(name), "w");
if (f == NULL){
/* couldn't open file */
fprintf(stderr,
"dlg: Warning: Can't write to file %s.\n",
name);
}
else
#ifdef SPECIAL_FOPEN
special_fopen_actions(OutMetaName(name)); /* MR1 */
#else
; /* MR1 */
#endif
}
}else{
/* open stdout if nothing there */
f = stdout;
}
return f;
}
#ifdef __USE_PROTOS
void fatal(char *message,int line_no)
#else
void fatal(message,line_no)
char *message;
int line_no;
#endif
{
fprintf(stderr,ErrHdr,
(file_str[0] ? file_str[0] : "stdin"), line_no);
fprintf(stderr, " Fatal: %s\n", message);
exit(PCCTS_EXIT_FAILURE);
}
#ifdef __USE_PROTOS
void error(char *message,int line_no)
#else
void error(message,line_no)
char *message;
int line_no;
#endif
{
fprintf(stderr,ErrHdr,
(file_str[0] ? file_str[0] : "stdin"), line_no);
fprintf(stderr, " Error: %s\n", message);
err_found = 1;
}
#ifdef __USE_PROTOS
void warning(char *message,int line_no)
#else
void warning(message,line_no)
char *message;
int line_no;
#endif
{
fprintf(stderr,ErrHdr,
(file_str[0] ? file_str[0] : "stdin"), line_no);
fprintf(stderr, " Warning: %s\n", message);
}
/* MR10: Jeff Vincent
MR10: Changed to remove directory information from n only if
MR10: if OutputDirectory was changed by user (-o option)
*/
#ifdef __USE_PROTOS
char *OutMetaName(char *n)
#else
char *OutMetaName(n)
char *n;
#endif
{
static char *dir_sym = DirectorySymbol;
static char newname[MaxFileName+1];
char *p;
/* If OutputDirectory is same as TopDirectory (platform default) then leave n alone. */
if (strcmp(OutputDirectory, TopDirectory) == 0)
return n;
/* p will point to filename without path information */
if ((p = strrchr(n, *dir_sym)) != NULL)
p++;
else
p = n;
/* Copy new output directory into newname[] */
strcpy(newname, OutputDirectory);
/* if new output directory does not have trailing dir_sym, add it! */
if (newname[strlen(newname)-1] != *dir_sym)
strcat(newname, dir_sym);
/* contatenate FILE NAME ONLY to new output directory */
strcat(newname, p);
return newname;
}
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