1 cbeb0b26 2006-04-01 devnull #define _BSD_SOURCE 1	/* strdup, mkstemp */
  2 5cedca1b 2004-05-15 devnull #include <stdio.h>
  3 5cedca1b 2004-05-15 devnull #include <signal.h>
  4 5cedca1b 2004-05-15 devnull #include <math.h>
  5 5cedca1b 2004-05-15 devnull #include <stdlib.h>
  6 b237df90 2004-05-16 devnull #include <unistd.h>
  7 5cedca1b 2004-05-15 devnull #include <string.h>
  8 5cedca1b 2004-05-15 devnull #include "grap.h"
  9 5cedca1b 2004-05-15 devnull #include "y.tab.h"
 10 5cedca1b 2004-05-15 devnull 
 11 5cedca1b 2004-05-15 devnull int	dbg	= 0;
 12 5cedca1b 2004-05-15 devnull 
 13 1e1cea29 2004-05-17 devnull #ifndef GRAPDEFINES
 14 d16cfe24 2004-08-16 devnull #define GRAPDEFINES "#9/lib/grap.defines"
 15 1e1cea29 2004-05-17 devnull #endif
 16 b237df90 2004-05-16 devnull char	*lib_defines;
 17 5cedca1b 2004-05-15 devnull 
 18 5cedca1b 2004-05-15 devnull int	lib	= 1;		/* 1 to include lib_defines */
 19 5cedca1b 2004-05-15 devnull FILE	*tfd	= NULL;
 20 b237df90 2004-05-16 devnull char	*tempfile;
 21 5cedca1b 2004-05-15 devnull 
 22 5cedca1b 2004-05-15 devnull int	synerr	= 0;
 23 5cedca1b 2004-05-15 devnull int	codegen	= 0;   		/* 1=>output for this picture; 0=>no output */
 24 5cedca1b 2004-05-15 devnull char	*cmdname;
 25 5cedca1b 2004-05-15 devnull 
 26 5cedca1b 2004-05-15 devnull Obj	*objlist = NULL;	/* all names stored here */
 27 5cedca1b 2004-05-15 devnull 
 28 5cedca1b 2004-05-15 devnull #define	BIG	1e30
 29 5cedca1b 2004-05-15 devnull Point	ptmin	= { NULL, -BIG, -BIG };
 30 5cedca1b 2004-05-15 devnull Point	ptmax	= { NULL, BIG, BIG };
 31 5cedca1b 2004-05-15 devnull 
 32 5cedca1b 2004-05-15 devnull char	*version = "version Dec 30, 1995";
 33 5cedca1b 2004-05-15 devnull 
 34 5cedca1b 2004-05-15 devnull extern int yyparse(void);
 35 5cedca1b 2004-05-15 devnull extern void setdefaults(void);
 36 5cedca1b 2004-05-15 devnull extern void getdata(void);
 37 5cedca1b 2004-05-15 devnull 
 38 b237df90 2004-05-16 devnull /* extern	int	unlink(char *); */ /* in unistd.h */
 39 b237df90 2004-05-16 devnull 
 40 b237df90 2004-05-16 devnull int
 41 5cedca1b 2004-05-15 devnull main(int argc, char *argv[])
 42 5cedca1b 2004-05-15 devnull {
 43 5cedca1b 2004-05-15 devnull 	extern void onintr(int), fpecatch(int);
 44 5cedca1b 2004-05-15 devnull 
 45 1e1cea29 2004-05-17 devnull 	lib_defines = unsharp(GRAPDEFINES);
 46 b237df90 2004-05-16 devnull 
 47 5cedca1b 2004-05-15 devnull 	if (signal(SIGINT, SIG_IGN) != SIG_IGN)
 48 5cedca1b 2004-05-15 devnull 		signal(SIGINT, onintr);
 49 5cedca1b 2004-05-15 devnull 	signal(SIGFPE, fpecatch);
 50 5cedca1b 2004-05-15 devnull 	cmdname = argv[0];
 51 b237df90 2004-05-16 devnull 	tempfile = strdup("grap.XXXXXX");
 52 b237df90 2004-05-16 devnull 	mkstemp(tempfile);
 53 5cedca1b 2004-05-15 devnull 	while (argc > 1 && *argv[1] == '-') {
 54 5cedca1b 2004-05-15 devnull 		switch (argv[1][1]) {
 55 5cedca1b 2004-05-15 devnull 		case 'd':
 56 5cedca1b 2004-05-15 devnull 			dbg = 1;
 57 5cedca1b 2004-05-15 devnull 			tfd = stdout;
 58 5cedca1b 2004-05-15 devnull 			strcpy(tempfile, "grap.temp");
 59 5cedca1b 2004-05-15 devnull 			unlink(tempfile);
 60 5cedca1b 2004-05-15 devnull 			fprintf(stderr, "%s\n", version);
 61 5cedca1b 2004-05-15 devnull 			break;
 62 5cedca1b 2004-05-15 devnull 		case 'l':	/* turn off /usr/lib inclusion */
 63 5cedca1b 2004-05-15 devnull 			lib = 0;
 64 5cedca1b 2004-05-15 devnull 			break;
 65 5cedca1b 2004-05-15 devnull 		}
 66 5cedca1b 2004-05-15 devnull 		argc--;
 67 5cedca1b 2004-05-15 devnull 		argv++;
 68 5cedca1b 2004-05-15 devnull 	}
 69 5cedca1b 2004-05-15 devnull 	setdefaults();
 70 5cedca1b 2004-05-15 devnull 	curfile = infile;
 71 5cedca1b 2004-05-15 devnull 	if (argc <= 1) {
 72 5cedca1b 2004-05-15 devnull 		curfile->fin = stdin;
 73 5cedca1b 2004-05-15 devnull 		curfile->fname = tostring("-");
 74 5cedca1b 2004-05-15 devnull 		pushsrc(File, curfile->fname);
 75 5cedca1b 2004-05-15 devnull 		getdata();
 76 5cedca1b 2004-05-15 devnull 	} else
 77 5cedca1b 2004-05-15 devnull 		while (argc-- > 1) {
 78 5cedca1b 2004-05-15 devnull 			if ((curfile->fin = fopen(*++argv, "r")) == NULL) {
 79 5cedca1b 2004-05-15 devnull 				fprintf(stderr, "grap: can't open %s\n", *argv);
 80 5cedca1b 2004-05-15 devnull 				onintr(0);
 81 5cedca1b 2004-05-15 devnull 			}
 82 5cedca1b 2004-05-15 devnull 			curfile->fname = tostring(*argv);
 83 5cedca1b 2004-05-15 devnull 			pushsrc(File, curfile->fname);
 84 5cedca1b 2004-05-15 devnull 			getdata();
 85 5cedca1b 2004-05-15 devnull 			fclose(curfile->fin);
 86 5cedca1b 2004-05-15 devnull 			free(curfile->fname);
 87 5cedca1b 2004-05-15 devnull 		}
 88 5cedca1b 2004-05-15 devnull 	if (!dbg)
 89 5cedca1b 2004-05-15 devnull 		unlink(tempfile);
 90 5cedca1b 2004-05-15 devnull 	exit(0);
 91 5cedca1b 2004-05-15 devnull }
 92 5cedca1b 2004-05-15 devnull 
 93 5cedca1b 2004-05-15 devnull void onintr(int n)
 94 5cedca1b 2004-05-15 devnull {
 95 1e1cea29 2004-05-17 devnull 	if(n){}
 96 1e1cea29 2004-05-17 devnull 	if(!dbg)
 97 5cedca1b 2004-05-15 devnull 		unlink(tempfile);
 98 5cedca1b 2004-05-15 devnull 	exit(1);
 99 5cedca1b 2004-05-15 devnull }
100 5cedca1b 2004-05-15 devnull 
101 5cedca1b 2004-05-15 devnull void fpecatch(int n)
102 5cedca1b 2004-05-15 devnull {
103 5cedca1b 2004-05-15 devnull 	ERROR "floating point exception" WARNING;
104 5cedca1b 2004-05-15 devnull 	onintr(n);
105 5cedca1b 2004-05-15 devnull }
106 5cedca1b 2004-05-15 devnull 
107 5cedca1b 2004-05-15 devnull char *grow(char *ptr, char *name, int num, int size)	/* make array bigger */
108 5cedca1b 2004-05-15 devnull {
109 5cedca1b 2004-05-15 devnull 	char *p;
110 5cedca1b 2004-05-15 devnull 
111 5cedca1b 2004-05-15 devnull 	if (ptr == NULL)
112 5cedca1b 2004-05-15 devnull 		p = malloc(num * size);
113 5cedca1b 2004-05-15 devnull 	else
114 5cedca1b 2004-05-15 devnull 		p = realloc(ptr, num * size);
115 5cedca1b 2004-05-15 devnull 	if (p == NULL)
116 5cedca1b 2004-05-15 devnull 		ERROR "can't grow %s to %d", name, num * size FATAL;
117 5cedca1b 2004-05-15 devnull 	return p;
118 5cedca1b 2004-05-15 devnull }
119 5cedca1b 2004-05-15 devnull 
120 5cedca1b 2004-05-15 devnull static struct {
121 5cedca1b 2004-05-15 devnull 	char	*name;
122 5cedca1b 2004-05-15 devnull 	double	val;
123 5cedca1b 2004-05-15 devnull } defaults[] ={
124 b237df90 2004-05-16 devnull 	{ "frameht", FRAMEHT },
125 b237df90 2004-05-16 devnull 	{ "framewid", FRAMEWID },
126 b237df90 2004-05-16 devnull 	{ "ticklen", TICKLEN },
127 b237df90 2004-05-16 devnull 	{ "slop", SLOP },
128 b237df90 2004-05-16 devnull 	{ NULL, 0 }
129 5cedca1b 2004-05-15 devnull };
130 5cedca1b 2004-05-15 devnull 
131 5cedca1b 2004-05-15 devnull void setdefaults(void)	/* set default sizes for variables */
132 5cedca1b 2004-05-15 devnull {
133 5cedca1b 2004-05-15 devnull 	int i;
134 5cedca1b 2004-05-15 devnull 	Obj *p;
135 5cedca1b 2004-05-15 devnull 
136 5cedca1b 2004-05-15 devnull 	for (i = 0; defaults[i].name != NULL; i++) {
137 5cedca1b 2004-05-15 devnull 		p = lookup(defaults[i].name, 1);
138 5cedca1b 2004-05-15 devnull 		setvar(p, defaults[i].val);
139 5cedca1b 2004-05-15 devnull 	}
140 5cedca1b 2004-05-15 devnull }
141 5cedca1b 2004-05-15 devnull 
142 5cedca1b 2004-05-15 devnull void getdata(void)		/* read input */
143 5cedca1b 2004-05-15 devnull {
144 5cedca1b 2004-05-15 devnull 	register FILE *fin;
145 5cedca1b 2004-05-15 devnull 	char buf[1000], buf1[100];
146 5cedca1b 2004-05-15 devnull 	int ln;
147 5cedca1b 2004-05-15 devnull 
148 5cedca1b 2004-05-15 devnull 	fin = curfile->fin;
149 5cedca1b 2004-05-15 devnull 	curfile->lineno = 0;
150 5cedca1b 2004-05-15 devnull 	printf(".lf 1 %s\n", curfile->fname);
151 5cedca1b 2004-05-15 devnull 	while (fgets(buf, sizeof buf, fin) != NULL) {
152 5cedca1b 2004-05-15 devnull 		curfile->lineno++;
153 5cedca1b 2004-05-15 devnull 		if (*buf == '.' && *(buf+1) == 'G' && *(buf+2) == '1') {
154 5cedca1b 2004-05-15 devnull 			setup();
155 5cedca1b 2004-05-15 devnull 			fprintf(stdout, ".PS%s", &buf[3]);	/* maps .G1 [w] to .PS w */
156 5cedca1b 2004-05-15 devnull 			printf("scale = 1\n");	/* defends against cip users */
157 5cedca1b 2004-05-15 devnull 			printf(".lf %d\n", curfile->lineno+1);
158 5cedca1b 2004-05-15 devnull 			yyparse();
159 5cedca1b 2004-05-15 devnull 			fprintf(stdout, ".PE\n");
160 5cedca1b 2004-05-15 devnull 			printf(".lf %d\n", curfile->lineno+1);
161 5cedca1b 2004-05-15 devnull 			fflush(stdout);
162 5cedca1b 2004-05-15 devnull 		} else if (buf[0] == '.' && buf[1] == 'l' && buf[2] == 'f') {
163 5cedca1b 2004-05-15 devnull 			if (sscanf(buf+3, "%d %s", &ln, buf1) == 2) {
164 5cedca1b 2004-05-15 devnull 				free(curfile->fname);
165 5cedca1b 2004-05-15 devnull 				printf(".lf %d %s\n", curfile->lineno = ln, curfile->fname = tostring(buf1));
166 5cedca1b 2004-05-15 devnull 			} else
167 5cedca1b 2004-05-15 devnull 				printf(".lf %d\n", curfile->lineno = ln);
168 5cedca1b 2004-05-15 devnull 		} else
169 5cedca1b 2004-05-15 devnull 			fputs(buf, stdout);
170 5cedca1b 2004-05-15 devnull 	}
171 5cedca1b 2004-05-15 devnull }