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1 /*
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2 ** support.c
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3 **
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4 ** Author: Pr Emanuelsson <pell@lysator.liu.se>
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5 ** Hacked by: Peter Eriksson <pen@lysator.liu.se>
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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
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10 #ifdef HAVE_ANSIHEADERS
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11 # include <stdlib.h>
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12 # include <string.h>
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13 #else
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14 # define strchr(str, c) index(str, c)
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15 #endif
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16
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17 #define IN_LIBIDENT_SRC
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18 #include "ident.h"
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19
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20
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21 char *id_strdup __P1(char *, str)
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22 {
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23 char *cp;
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24
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25 cp = (char *) malloc(strlen(str)+1);
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26 if (cp == NULL)
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27 {
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28 #ifdef DEBUG
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29 perror("libident: malloc");
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30 #endif
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31 return NULL;
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32 }
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33
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34 strcpy(cp, str);
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35
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36 return cp;
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37 }
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38
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39
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40 char *id_strtok __P3(char *, cp,
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41 char *, cs,
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42 char *, dc)
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43 {
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44 static char *bp = 0;
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45
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46 if (cp)
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47 bp = cp;
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48
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49 /*
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50 ** No delimitor cs - return whole buffer and point at end
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51 */
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52 if (!cs)
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53 {
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54 while (*bp)
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55 bp++;
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56 return cs;
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57 }
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58
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59 /*
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60 ** Skip leading spaces
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61 */
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62 while (isspace(*bp))
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63 bp++;
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64
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65 /*
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66 ** No token found?
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67 */
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68 if (!*bp)
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69 return 0;
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70
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71 cp = bp;
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72 while (*bp && !strchr(cs, *bp))
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73 bp++;
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74
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75 /*
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76 ** Remove trailing spaces
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77 */
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78 *dc = *bp;
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79 for (dc = bp-1; dc > cp && isspace(*dc); dc--)
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80 ;
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81 *++dc = '\0';
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82
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83 bp++;
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84
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85 return cp;
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86 }
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