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Last change
on this file since 689 was 551, checked in by Gregg Young, 19 years ago |
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Indentation cleanup
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-
Property svn:eol-style
set to
native
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Property svn:keywords
set to
Author Date Id Revision
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File size:
1.9 KB
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| 1 | #define INCL_DOS
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| 2 |
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| 3 | #include <os2.h>
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| 4 | #include <stdlib.h>
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| 5 | #include <stdio.h>
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| 6 | #include <string.h>
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| 7 | #include <ctype.h>
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| 8 |
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| 9 | #pragma alloc_text(MISC8,stristr,strnstr,strnistr,findstring)
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| 10 |
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| 11 | CHAR *stristr(register CHAR * t, CHAR * s)
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| 12 | {
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| 13 |
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| 14 | /* case-insensitive strstr() */
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| 15 |
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| 16 | register CHAR *t1, *s1;
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| 17 |
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| 18 | while (*t) {
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| 19 | t1 = t;
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| 20 | s1 = s;
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| 21 | while (*s1) {
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| 22 | if (toupper(*s1) != toupper(*t))
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| 23 | break;
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| 24 | else {
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| 25 | s1++;
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| 26 | t++;
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| 27 | }
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| 28 | }
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| 29 | if (!*s1)
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| 30 | return t1;
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| 31 | t = t1 + 1;
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| 32 | }
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| 33 | return NULL;
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| 34 | }
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| 35 |
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| 36 | CHAR *strnistr(register CHAR * t, CHAR * s, LONG len)
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| 37 | {
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| 38 |
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| 39 | /* case-insensitive strnstr() */
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| 40 |
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| 41 | register CHAR *s1;
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| 42 | register LONG len2;
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| 43 |
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| 44 | len2 = 0;
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| 45 | while (len > len2) {
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| 46 | s1 = s;
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| 47 | while (len2 < len) {
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| 48 | if (toupper(*s1) != toupper(t[len2]))
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| 49 | break;
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| 50 | else {
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| 51 | len2++;
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| 52 | s1++;
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| 53 | }
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| 54 | }
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| 55 | if (!*s1)
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| 56 | return t + (len2 - strlen(s));
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| 57 | len2++;
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| 58 | }
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| 59 | return NULL;
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| 60 | }
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| 61 |
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| 62 | CHAR *strnstr(register CHAR * t, CHAR * s, LONG len)
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| 63 | {
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| 64 |
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| 65 | /* strnstr() */
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| 66 |
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| 67 | register CHAR *s1;
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| 68 | register LONG len2;
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| 69 |
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| 70 | len2 = 0;
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| 71 | while (len > len2) {
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| 72 | s1 = s;
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| 73 | while (len2 < len) {
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| 74 | if (*s1 != t[len2])
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| 75 | break;
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| 76 | else {
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| 77 | len2++;
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| 78 | s1++;
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| 79 | }
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| 80 | }
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| 81 | if (!*s1)
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| 82 | return t + (len2 - strlen(s));
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| 83 | len2++;
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| 84 | }
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| 85 | return NULL;
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| 86 | }
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| 87 |
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| 88 | CHAR *findstring(CHAR * findthis, ULONG lenthis, CHAR * findin,
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| 89 | ULONG lenin, BOOL sensitive)
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| 90 | {
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| 91 |
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| 92 | register CHAR *this, *in;
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| 93 | register ULONG lenthis2, lenin2;
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| 94 |
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| 95 | if (!findthis || !findin || !lenthis || !lenin)
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| 96 | return NULL;
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| 97 | do {
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| 98 | this = findthis;
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| 99 | lenthis2 = lenthis;
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| 100 | in = findin;
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| 101 | lenin2 = lenin;
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| 102 | while (lenthis2 && lenin2) {
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| 103 | if (!sensitive) {
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| 104 | if (toupper(*this) != toupper(*in))
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| 105 | break;
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| 106 | else {
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| 107 | this++;
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| 108 | in++;
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| 109 | lenthis2--;
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| 110 | lenin2--;
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| 111 | }
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| 112 | }
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| 113 | else {
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| 114 | if (*this != *in)
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| 115 | break;
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| 116 | else {
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| 117 | this++;
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| 118 | in++;
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| 119 | lenthis2--;
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| 120 | lenin2--;
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| 121 | }
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| 122 | }
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| 123 | }
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| 124 | if (lenthis2) {
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| 125 | lenin--;
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| 126 | findin++;
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| 127 | }
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| 128 | } while (lenin && lenthis2);
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| 129 | return (lenthis2) ? NULL : in - lenthis;
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| 130 | }
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