auto commit for import

[pccts] / dlg / support.c

diff --git a/dlg/support.c b/dlg/support.c
new file mode 100755 (executable)
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+++ b/dlg/support.c
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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
+ * 1989-1995
+ */
+
+#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 */
+
+internal_error(s,file,line)
+char *s,*file;
+int line;
+{
+       fprintf(stderr,s,file,line);
+       exit(PCCTS_EXIT_FAILURE);
+}
+
+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
+                special_fopen_actions(OutMetaName(name));
+               }
+       }else{
+               /* open stdout if nothing there */
+               f = stdout;
+       }
+       return f;
+}
+
+
+void fatal(message,line_no)
+char *message;
+int line_no;
+{
+       fprintf(stderr,ErrHdr,
+               (file_str[0] ? file_str[0] : "stdin"), line_no);
+       fprintf(stderr, " Fatal: %s\n", message);
+       exit(PCCTS_EXIT_FAILURE);
+}
+
+void error(message,line_no)
+char *message;
+int line_no;
+{
+       fprintf(stderr,ErrHdr,
+               (file_str[0] ? file_str[0] : "stdin"), line_no);
+       fprintf(stderr, " Error: %s\n", message);
+       err_found = 1;
+}
+
+void warning(message,line_no)
+char *message;
+int line_no;
+{
+       fprintf(stderr,ErrHdr,
+               (file_str[0] ? file_str[0] : "stdin"), line_no);
+       fprintf(stderr, " Warning: %s\n", message);
+}
+
+char *
+#ifdef __STDC__
+OutMetaName(char *n)
+#else
+OutMetaName(n)
+char *n;
+#endif
+{
+       static char buf[200+1];
+
+       if ( strcmp(outdir,TopDirectory)==0 ) return n;
+       strcpy(buf, outdir);
+       if ( strcmp(&buf[strlen(buf) - 1], DirectorySymbol ) )
+               strcat(buf, DirectorySymbol);
+       strcat(buf, n);
+       return buf;
+}