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OS/2 Shareware BBS: 10 Tools
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10-Tools.zip
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pccts.zip
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pccts
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dlg
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support.c
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C/C++ Source or Header
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1994-03-31
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3KB
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175 lines
/*
* 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 1.20
* Will Cohen
* With mods by Terence Parr; AHPCRC, University of Minnesota
* 1989-1994
*/
#include <stdio.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 */
internal_error(s,file,line)
char *s,*file;
int line;
{
fprintf(stderr,s,file,line);
exit(1);
}
char *dlg_malloc(bytes,file,line)
int bytes;
char *file;
int line;
{
char *t;
t = (char *) malloc(bytes);
if (!t){
/* error */
internal_error("%s(%d): unable to allocate memory\n",
file,line);
}
return t;
}
char *dlg_calloc(n,bytes,file,line)
int n,bytes;
char *file;
int line;
{
char *t;
t = (char *) calloc(n,bytes);
if (!t){
/* error */
internal_error("%s(%d): unable to allocate memory\n",
file,line);
}
return t;
}
FILE *read_stream(name)
char *name;
{
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;
}
FILE *write_stream(name)
char *name;
{
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{
/* open stdin if nothing there */
f = stdout;
}
return f;
}
void fatal(message,line_no)
char *message;
int line_no;
{
fprintf(stderr,"Fatal : %s, line : %d\n",message,line_no);
exit(2);
}
void error(message,line_no)
char *message;
int line_no;
{
fprintf(stderr,"\"%s\", line %d: %s\n",
(file_str[0] ? file_str[0] : "stdin"), line_no, message);
err_found = 1;
}
void warning(message,line_no)
char *message;
int line_no;
{
fprintf(stderr,"Warning : %s, line : %d\n",message,line_no);
}
char *
#ifdef __STDC__
OutMetaName(char *n)
#else
OutMetaName(n)
char *n;
#endif
{
static char buf[200+1];
if ( strcmp(outdir,".")==0 ) return n;
strcpy(buf, outdir);
strcat(buf, DirectorySymbol);
strcat(buf, n);
return buf;
}