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1 /* printsw.c - print switches */
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2
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3 #include "../h/mh.h"
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4
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5
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6 void printsw (substr, swp, prefix)
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7 register char *substr,
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8 *prefix;
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9 register struct swit *swp;
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10 {
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11 int len,
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12 optno;
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13 register int i;
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14 register char *cp,
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15 *cp1,
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16 *sp;
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17 char buf[128];
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18
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19 len = strlen (substr);
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20 for (; swp -> sw; swp++) {
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21 if (!*substr || /* null matches all strings */
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22 (ssequal (substr, swp -> sw) && len >= swp -> minchars)) {
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23 optno = 0;
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24 if (sp = (&swp[1]) -> sw) /* next switch */
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25 if (!*substr && sp[0] == 'n' && sp[1] == 'o' &&
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26 strcmp (&sp[2], swp -> sw) == 0 && (
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27 ((&swp[1]) -> minchars == 0 && swp -> minchars == 0) ||
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28 ((&swp[1]) -> minchars == (swp -> minchars) + 2)))
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29 optno++;
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30 if (swp -> minchars > 0) {
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31 cp = buf;
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32 *cp++ = '(';
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33 if (optno) {
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34 (void) strcpy (cp, "[no]");
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35 cp += strlen (cp);
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36 }
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37 for (cp1 = swp -> sw, i = 0; i < swp -> minchars; i++)
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38 *cp++ = *cp1++;
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39 *cp++ = ')';
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40 while (*cp++ = *cp1++);
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41 printf (" %s%s\n", prefix, buf);
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42 }
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43 else
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44 if (swp -> minchars == 0)
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45 printf (optno ? " %s[no]%s\n" : " %s%s\n",
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46 prefix, swp -> sw);
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47 if (optno)
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48 swp++; /* skip -noswitch */
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49 }
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50 }
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51 }
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