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/* soin: inline troff .so requests */
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#define LNLEN 2048
static int soin(char *path);
static int soin_cmd(char *s)
{
char path[LNLEN];
char *d = path;
if (s[0] != '.' || s[1] != 's' || s[2] != 'o' || s[3] != ' ')
return 1;
s += 3;
while (isspace((unsigned char) *s))
s++;
if (s[0] == '"') {
s++;
while (*s && *s != '\n' && *s != '"')
*d++ = *s++;
} else {
while (*s && *s != ' ' && *s != '\n')
*d++ = *s++;
}
*d = '\0';
return soin(path);
}
static int soin(char *path)
{
FILE *fp = path ? fopen(path, "r") : stdin;
int lineno = 1;
char ln[LNLEN];
if (!fp) {
fprintf(stderr, "soin: cannot open <%s>\n", path);
return 1;
}
printf(".lf %d %s\n", lineno, path ? path : "stdin");
while (fgets(ln, sizeof(ln), fp)) {
lineno++;
if (!soin_cmd(ln))
printf(".lf %d %s\n", lineno, path ? path : "stdin");
else
fputs(ln, stdout);
if (ln[0] == '.' && ln[1] == 'l' && ln[2] == 'f')
sscanf(ln, ".lf %d", &lineno);
}
if (path)
fclose(fp);
return 0;
}
int main(void)
{
soin(NULL);
return 0;
}
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