FreeCalypso > hg > freecalypso-tools

annotate rvinterf/asyncshell/parse.c @ 416:30f6d1c32c6f

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doc/Flash-boot-defect article removed (no longer relevant) This article is no longer relevant because the issue in question only affected one (1) defective FCDEV3B board which was not and never will be sold.
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 26 Oct 2018 07:11:08 +0000
parents e7502631a0f9
children
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1 /*
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2 * This module implements the parser helper function that allows
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3 * the same code to be reused between interactive and one-shot
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4 * versions of the same command.
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5 */
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6
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7 #include <stdio.h>
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8 #include <ctype.h>
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9 #include <string.h>
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10 #include <strings.h>
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11 #include <stdlib.h>
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12
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13 parse_interactive_command_into_argv(argstr, argv, min_arg, max_arg, argcp)
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14 char *argstr, **argv;
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15 int min_arg, max_arg, *argcp;
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16 {
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17 char *cp, **ap;
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18
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19 cp = argstr;
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20 for (ap = argv; ; ) {
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21 while (isspace(*cp))
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22 cp++;
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23 if (!*cp || *cp == '#')
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24 break;
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25 if (ap - argv >= max_arg) {
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26 printf("error: too many arguments\n");
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27 return(-1);
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28 }
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29 if (*cp == '"') {
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30 *ap++ = ++cp;
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31 while (*cp && *cp != '"')
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32 cp++;
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33 if (*cp != '"') {
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34 printf("error: unterminated quoted string\n");
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35 return(-1);
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36 }
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37 *cp++ = '\0';
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38 } else {
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39 *ap++ = cp;
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40 while (*cp && !isspace(*cp))
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41 cp++;
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42 if (*cp)
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43 *cp++ = '\0';
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44 }
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45 }
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46 if (ap - argv < min_arg) {
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47 printf("error: too few arguments\n");
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48 return(-1);
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49 }
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50 *ap = 0;
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51 *argcp = ap - argv;
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52 return(0);
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53 }