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--- lemon.c Tue Dec 5 20:52:24 2000
+++ lemon.c Mon Jul 14 18:43:15 2003
@@ -27,13 +27,14 @@
*/
#include <stdio.h>
-#include <varargs.h>
+#include <stdarg.h>
#include <string.h>
#include <ctype.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/param.h>
extern void qsort();
extern double strtod();
extern long strtol();
-extern void free();
-extern int access();
extern int atoi();
@@ -54,5 +55,4 @@
char *msort();
-extern void *malloc();
/******** From the file "action.h" *************************************/
@@ -90,5 +90,5 @@
/********* From the file "error.h" ***************************************/
-void ErrorMsg( /* char *, int, char *, ... */ );
+static void ErrorMsg(const char *, int, const char *, ... );
/****** From the file "option.h" ******************************************/
@@ -1109,10 +1109,7 @@
#define LINEWIDTH 79 /* Max width of any output line */
#define PREFIXLIMIT 30 /* Max width of the prefix on each line */
-void ErrorMsg(va_alist)
-va_dcl
+static void
+ErrorMsg(const char *filename, int lineno, const char *format, ...)
{
- char *filename;
- int lineno;
- char *format;
char errmsg[ERRMSGSIZE];
char prefix[PREFIXLIMIT+10];
@@ -1123,8 +1120,5 @@
int end, restart, base;
- va_start(ap);
- filename = va_arg(ap,char*);
- lineno = va_arg(ap,int);
- format = va_arg(ap,char*);
+ va_start(ap, format);
/* Prepare a prefix to be prepended to every output line */
if( lineno>0 ){
@@ -1168,4 +1162,26 @@
}
+static char *lempar_locations[] = {
+ NULL, "lempar.c", LEMPAR
+};
+
+void setlempar(lempar)
+char *lempar;
+{
+ if (access(lempar, R_OK)) {
+ perror(lempar);
+ exit(1);
+ }
+ lempar_locations[0] = lempar;
+}
+
+static char *output_file = NULL;
+
+void setoutput(base)
+char *base;
+{
+ if (output_file = malloc(strlen(base) + 1))
+ sprintf(output_file, "%s.", base);
+}
/* The main program. Parse the command line and do it... */
@@ -1185,7 +1201,12 @@
{OPT_FLAG, "c", (char*)&compress, "Don't compress the action table."},
{OPT_FLAG, "g", (char*)&rpflag, "Print grammar without actions."},
- {OPT_FLAG, "m", (char*)&mhflag, "Output a makeheaders compatible file"},
+ {OPT_FLAG, "m", (char*)&mhflag, "Output a makeheaders compatible file."},
+ {OPT_FSTR, "o", (char*)setoutput, "Set the dirname/basename for the "
+ "output file(s)."},
{OPT_FLAG, "q", (char*)&quiet, "(Quiet) Don't print the report file."},
{OPT_FLAG, "s", (char*)&statistics, "Print parser stats to standard output."},
+ {OPT_FSTR, "t", (char*)setlempar, "An alternative template -- instead of"
+ " ``./lempar.c''\n\t\tor the system wide ``"
+ LEMPAR"''."},
{OPT_FLAG, "x", (char*)&version, "Print the version number."},
{OPT_FLAG,0,0,0}
@@ -2305,4 +2326,5 @@
}
}
+
/*********************** From the file "report.c" **************************/
/*
@@ -2318,13 +2340,14 @@
char *suffix;
{
- char *name;
- char *cp;
+ char *name = NULL;
+ char *cp, *fname;
- name = malloc( strlen(lemp->filename) + strlen(suffix) + 5 );
+ fname = output_file ? output_file : lemp->filename;
+ name = malloc( strlen(fname) + strlen(suffix));
if( name==0 ){
fprintf(stderr,"Can't allocate space for a filename.\n");
exit(1);
}
- strcpy(name,lemp->filename);
+ strcpy(name, fname);
cp = strrchr(name,'.');
if( cp ) *cp = 0;
@@ -2524,47 +2547,14 @@
}
-/* Search for the file "name" which is in the same directory as
-** the exacutable */
-PRIVATE char *pathsearch(argv0,name,modemask)
-char *argv0;
-char *name;
-int modemask;
+PRIVATE const char *pathsearch()
{
- char *pathlist;
- char *path,*cp;
- char c;
- extern int access();
+ int i;
+ const char *path = NULL;
-#ifdef __WIN32__
- cp = strrchr(argv0,'\\');
-#else
- cp = strrchr(argv0,'/');
-#endif
- if( cp ){
- c = *cp;
- *cp = 0;
- path = (char *)malloc( strlen(argv0) + strlen(name) + 2 );
- if( path ) sprintf(path,"%s/%s",argv0,name);
- *cp = c;
- }else{
- extern char *getenv();
- pathlist = getenv("PATH");
- if( pathlist==0 ) pathlist = ".:/bin:/usr/bin";
- path = (char *)malloc( strlen(pathlist)+strlen(name)+2 );
- if( path!=0 ){
- while( *pathlist ){
- cp = strchr(pathlist,':');
- if( cp==0 ) cp = &pathlist[strlen(pathlist)];
- c = *cp;
- *cp = 0;
- sprintf(path,"%s/%s",pathlist,name);
- *cp = c;
- if( c==0 ) pathlist = "";
- else pathlist = &cp[1];
- if( access(path,modemask)==0 ) break;
- }
- }
- }
- return path;
+ for (i = 0; i < sizeof(lempar_locations)/sizeof(char *); i++)
+ if (lempar_locations[i] && access(lempar_locations[i], R_OK) == 0)
+ return lempar_locations[i];
+
+ return(NULL);
}
@@ -2630,8 +2620,7 @@
struct lemon *lemp;
{
- static char templatename[] = "lempar.c";
- char buf[1000];
+ char buf[MAXPATHLEN];
FILE *in;
- char *tpltname;
+ const char *tpltname;
char *cp;
@@ -2642,12 +2631,11 @@
sprintf(buf,"%s.lt",lemp->filename);
}
- if( access(buf,004)==0 ){
+ if( access(buf, R_OK)==0 ){
tpltname = buf;
}else{
- tpltname = pathsearch(lemp->argv0,templatename,0);
+ tpltname = pathsearch();
}
if( tpltname==0 ){
- fprintf(stderr,"Can't find the parser driver template file \"%s\".\n",
- templatename);
+ fprintf(stderr,"Can't find the parser driver template file.\n");
lemp->errorcnt++;
return 0;
@@ -2655,5 +2643,5 @@
in = fopen(tpltname,"r");
if( in==0 ){
- fprintf(stderr,"Can't open the template file \"%s\".\n",templatename);
+ fprintf(stderr,"Can't open the template file \"%s\".\n", tpltname);
lemp->errorcnt++;
return 0;
|
