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#include <stdio.h>
#include <ctype.h>
#include "parse.h"
static char copyright[] = "Copyright (C) Ken Yap 1988";
static char zerostring[] = "0";
static char onestring[] = "1";
charinfo global = {
-1, -1,
onestring, onestring,
};
charinfo perchar;
static char *skipblanks(p)
char *p;
{
while (isspace(*p) || *p == ',') /* , is also space */
++p;
return (p);
}
static char *skipnonblanks(p)
char *p;
{
while (*p != '\0' && !(isspace(*p) || *p == ','))
++p;
return (p);
}
static char *skippast(p, c)
char *p, c;
{
while (*p != '\0' && *p != c)
++p;
return (*p == c ? p + 1 : p);
}
static int match(p, word)
char *p, *word;
{
register int l;
l = strlen(word);
return (strncmp(p, word, l) == 0);
}
static int getparams(p, ci)
char *p;
charinfo *ci;
{
if (*p == '\'') /* collect ascii index */
{
if (*++p != '\\')
ci->asciiindex = (int)*p;
else if (*++p == '\\')
ci->asciiindex = (int)*p;
else if (sscanf(p, "%o", &ci->asciiindex) != 1)
{
(void)fprintf(stderr, "Bad char index spec %s", p);
return (0);
}
p = skippast(p+1, ',');
p = skipblanks(p);
if (!isdigit(*p))
{
(void)fprintf(stderr, "Missing Hershey index %s", p);
return (0);
}
ci->hersheyindex = atoi(p);
p = skippast(p, ',');
}
else if (isdigit(*p))
{
if (*p == '0')
{
if (sscanf(p, "%o", &ci->asciiindex) != 1)
{
(void)fprintf(stderr, "Bad char index spec %s", p);
return (0);
}
}
else
{
if (sscanf(p, "%d", &ci->asciiindex) != 1)
{
(void)fprintf(stderr, "Bad char index spec %s", p);
return (0);
}
}
p = skippast(p+1, ',');
p = skipblanks(p);
if (!isdigit(*p))
{
(void)fprintf(stderr, "Missing Hershey index %s", p);
return (0);
}
ci->hersheyindex = atoi(p);
p = skippast(p, ',');
}
p = skipblanks(p);
while (*p != '\0')
{
if (match(p, "hoff"))
{
p = skippast(p, '=');
p = skipblanks(p);
ci->hoff = p;
}
if (match(p, "voff"))
{
p = skippast(p, '=');
p = skipblanks(p);
ci->voff = p;
}
if (match(p, "hratio"))
{
p = skippast(p, '=');
p = skipblanks(p);
ci->hratio = p;
}
if (match(p, "vratio"))
{
p = skippast(p, '=');
p = skipblanks(p);
ci->vratio = p;
}
p = skipnonblanks(p);
if (*p != '\0')
{
*p = '\0';
p = skipblanks(p+1);
}
}
return (1);
}
int parsespecs(line)
char *line;
{
register int l;
register char *p;
char *malloc();
line = skipblanks(line);
if (*line == '\'')
{
perchar = global; /* copy globals */
return (getparams(line, &perchar));
}
else
{
l = strlen(line) + 1;
if ((p = malloc(l)) == NULL)
{
perror("malloc");
exit(1);
}
(void)strcpy(p, line);
if (!getparams(p, &global))
(void)fprintf(stderr, "Bad global spec %s", line);
return (0);
}
/*NOTREACHED*/
}
#ifdef STANDALONE
main()
{
char line[256];
while (fgets(line, sizeof(line), stdin) != NULL)
parsespecs(line);
exit(0);
}
#endif STANDALONE
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