main()
{
char reg[132];
char *ireg;
char str[132];
char *match;
char matstr[132];
char c;
while (1) {
printf ("\nexpr: ");
scanf ("%s", reg);
ireg = convexp(reg);
match = ireg;
while(*match) {
switch (*match) {
case '\\':
case '(':
case ')':
case '|':
printf ("%c", *match);
break;
default:
if (isalnum(*match))
printf("%c", *match);
else
printf ("<%03o>", *match);
break;
}
match++;
}
printf("\n");
getchar();
while(1) {
printf ("string: ");
match = str;
while ((c = getchar()) != '\n')
*match++ = c;
*match = 0;
if (str[0] == '#')
break;
matstr[0] = 0;
_start = str;
_escaped = 0;
match = expmatch (str, ireg, matstr);
if (match == 0)
printf ("FAILED\n");
else
printf ("match\nmatstr = %s\n", matstr);
}
}
}
int
main(int argc, char **argv)
{
const char *fname = "";
struct stat stbuf;
char buf[BUFSIZ];
char *defs;
int needbp = 0;
argc--, argv++;
do {
char *cp;
int i;
if (argc > 0) {
if (!strcmp(argv[0], "-h")) {
if (argc == 1) {
printf("'ds =H\n");
argc = 0;
goto rest;
}
printf("'ds =H %s\n", argv[1]);
argc--, argv++;
argc--, argv++;
if (argc > 0)
continue;
goto rest;
}
/* act as a filter like eqn */
if (!strcmp(argv[0], "-f")) {
filter = true;
argv[0] = argv[argc-1];
argv[argc-1] = minus;
continue;
}
/* take input from the standard place */
if (!strcmp(argv[0], "-")) {
argc = 0;
goto rest;
}
/* build an index */
if (!strcmp(argv[0], "-x")) {
idx = true;
argv[0] = minusn;
}
/* indicate no keywords */
if (!strcmp(argv[0], "-n")) {
nokeyw = true;
argc--, argv++;
continue;
}
/* specify the font size */
if (!strncmp(argv[0], "-s", 2)) {
i = 0;
cp = argv[0] + 2;
while (*cp)
i = i * 10 + (*cp++ - '0');
printf("'ps %d\n'vs %d\n", i, i+1);
argc--, argv++;
continue;
}
/* specify the language */
if (!strncmp(argv[0], "-l", 2)) {
language = argv[0]+2;
argc--, argv++;
continue;
}
/* specify the language description file */
if (!strncmp(argv[0], "-d", 2)) {
defsfile[0] = argv[1];
argc--, argv++;
argc--, argv++;
continue;
}
/* open the file for input */
if (freopen(argv[0], "r", stdin) == NULL)
err(1, "%s", argv[0]);
if (idx)
printf("'ta 4i 4.25i 5.5iR\n'in .5i\n");
fname = argv[0];
argc--, argv++;
}
rest:
/*
* get the language definition from the defs file
*/
i = cgetent(&defs, defsfile, language);
if (i == -1) {
fprintf (stderr, "no entry for language %s\n", language);
exit(0);
} else if (i == -2) { fprintf(stderr,
"cannot find vgrindefs file %s\n", defsfile[0]);
exit(0);
} else if (i == -3) { fprintf(stderr,
"potential reference loop detected in vgrindefs file %s\n",
defsfile[0]);
exit(0);
}
if (cgetustr(defs, "kw", &cp) == -1)
nokeyw = true;
else {
char **cpp;
cpp = l_keywds;
while (*cp) {
while (*cp == ' ' || *cp =='\t')
*cp++ = '\0';
if (*cp)
*cpp++ = cp;
while (*cp != ' ' && *cp != '\t' && *cp)
cp++;
}
*cpp = NULL;
}
cgetustr(defs, "pb", &cp);
l_prcbeg = convexp(cp);
cgetustr(defs, "cb", &cp);
l_combeg = convexp(cp);
cgetustr(defs, "ce", &cp);
l_comend = convexp(cp);
cgetustr(defs, "ab", &cp);
l_acmbeg = convexp(cp);
cgetustr(defs, "ae", &cp);
l_acmend = convexp(cp);
cgetustr(defs, "sb", &cp);
l_strbeg = convexp(cp);
cgetustr(defs, "se", &cp);
l_strend = convexp(cp);
cgetustr(defs, "bb", &cp);
l_blkbeg = convexp(cp);
cgetustr(defs, "be", &cp);
l_blkend = convexp(cp);
cgetustr(defs, "lb", &cp);
l_chrbeg = convexp(cp);
cgetustr(defs, "le", &cp);
l_chrend = convexp(cp);
if (cgetustr(defs, "nc", &cp) >= 0)
l_nocom = convexp(cp);
l_escape = '\\';
l_onecase = (cgetcap(defs, "oc", ':') != NULL);
l_toplex = (cgetcap(defs, "tl", ':') != NULL);
/* initialize the program */
incomm = false;
instr = false;
inchr = false;
_escaped = false;
blklevel = 0;
for (psptr=0; psptr<PSMAX; psptr++) {
pstack[psptr][0] = '\0';
plstack[psptr] = 0;
}
psptr = -1;
ps("'-F\n");
if (!filter) {
printf(".ds =F %s\n", fname);
ps("'wh 0 vH\n");
ps("'wh -1i vF\n");
}
if (needbp) {
needbp = 0;
printf(".()\n");
printf(".bp\n");
}
if (!filter) {
fstat(fileno(stdin), &stbuf);
cp = ctime(&stbuf.st_mtime);
cp[16] = '\0';
cp[24] = '\0';
printf(".ds =M %s %s\n", cp+4, cp+20);
}
/*
* MAIN LOOP!!!
*/
while (fgets(buf, sizeof buf, stdin) != NULL) {
if (buf[0] == '\f') {
printf(".bp\n");
}
if (buf[0] == '.') {
printf("%s", buf);
if (!strncmp (buf+1, "vS", 2))
pass = true;
if (!strncmp (buf+1, "vE", 2))
pass = false;
continue;
}
prccont = false;
if (!filter || pass)
putScp(buf);
else
printf("%s", buf);
if (prccont && (psptr >= 0)) {
ps("'FC ");
ps(pstack[psptr]);
ps("\n");
}
#ifdef DEBUG
printf ("com %o str %o chr %o ptr %d\n", incomm, instr, inchr, psptr);
#endif
margin = 0;
}
needbp = 1;
} while (argc > 0);
exit(0);
}
