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/* print_sw.c -- print switches
*
* This code is Copyright (c) 2002, by the authors of nmh. See the
* COPYRIGHT file in the root directory of the nmh distribution for
* complete copyright information.
*/
#include "h/mh.h"
#include "sbr/utils.h"
#include "print_sw.h"
void
print_sw (const char *substr, const struct swit *swp, char *prefix, FILE *fp)
{
int len;
bool optno;
int i;
char *cp, *cp1, *sp;
char buf[128];
len = strlen(substr);
for (; swp->sw; swp++) {
/* null matches all strings */
if (!*substr || (has_prefix(swp->sw, substr) && len >= swp->minchars)) {
optno = false;
/* next switch */
if ((sp = (&swp[1])->sw)) {
if (!*substr && sp[0] == 'n' && sp[1] == 'o' &&
strcmp (&sp[2], swp->sw) == 0 && (
((&swp[1])->minchars == 0 && swp->minchars == 0) ||
((&swp[1])->minchars == (swp->minchars) + 2)))
optno = true;
}
if (swp->minchars > 0) {
cp = buf;
*cp++ = '(';
if (optno) {
strcpy (cp, "[no]");
cp += strlen (cp);
}
for (cp1 = swp->sw, i = 0; i < swp->minchars; i++)
*cp++ = *cp1++;
*cp++ = ')';
while ((*cp++ = *cp1++));
fprintf (fp, " %s%s\n", prefix, buf);
} else {
if (!swp->minchars)
fprintf(fp, optno ? " %s[no]%s\n" : " %s%s\n",
prefix, swp->sw);
}
if (optno)
swp++; /* skip -noswitch */
}
}
}
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