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annotate lldbg/parseargs.c @ 40:b56928f8c001

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author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 07 May 2017 16:20:07 +0000
parents 75a11d740a02
children
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Mychaela Falconia <falcon@freecalypso.org>
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1 /*
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2 * This module contains the parse_args() function, which parses the "rest"
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3 * part of an entered command into an argc/argv-style argument array.
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4 */
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5
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6 lldbg_parse_args(unparsed, minargs, maxargs, argv, argcp)
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7 char *unparsed;
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8 int minargs, maxargs;
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9 char **argv;
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10 int *argcp;
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11 {
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12 int argc;
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13 char *cp;
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14
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15 argc = 0;
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16 for (cp = unparsed; ; ) {
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17 while (*cp == ' ')
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18 cp++;
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19 if (!*cp)
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20 break;
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21 if (argc >= maxargs) {
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22 lldbg_printf("ERROR: too many arguments\n");
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23 return(-1);
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24 }
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25 argv[argc++] = cp;
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26 while (*cp && *cp != ' ')
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27 cp++;
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28 if (*cp)
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29 *cp++ = '\0';
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30 }
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31 if (argc < minargs) {
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32 lldbg_printf("ERROR: too few arguments\n");
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33 return(-1);
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34 }
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35 argv[argc] = 0;
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36 if (argcp)
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37 *argcp = argc;
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38 return(0);
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39 }