1 /**************************************************************************** 2 * Copyright (c) 2009-2010,2011 Free Software Foundation, Inc. * 3 * * 4 * Permission is hereby granted, free of charge, to any person obtaining a * 5 * copy of this software and associated documentation files (the * 6 * "Software"), to deal in the Software without restriction, including * 7 * without limitation the rights to use, copy, modify, merge, publish, * 8 * distribute, distribute with modifications, sublicense, and/or sell * 9 * copies of the Software, and to permit persons to whom the Software is * 10 * furnished to do so, subject to the following conditions: * 11 * * 12 * The above copyright notice and this permission notice shall be included * 13 * in all copies or substantial portions of the Software. * 14 * * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 22 * * 23 * Except as contained in this notice, the name(s) of the above copyright * 24 * holders shall not be used in advertising or otherwise to promote the * 25 * sale, use or other dealings in this Software without prior written * 26 * authorization. * 27 ****************************************************************************/ 28 29 /**************************************************************************** 30 * Author: Thomas E. Dickey * 31 ****************************************************************************/ 32 #include <progs.priv.h> 33 #include <string.h> 34 35 #include <transform.h> 36 37 MODULE_ID("$Id: transform.c,v 1.3 2011/05/14 22:41:17 tom Exp $") 38 39 #ifdef SUFFIX_IGNORED 40 static void 41 trim_suffix(const char *a, size_t *len) 42 { 43 const char ignore[] = SUFFIX_IGNORED; 44 45 if (sizeof(ignore) != 0) { 46 bool trim = FALSE; 47 size_t need = (sizeof(ignore) - 1); 48 49 if (*len > need) { 50 size_t first = *len - need; 51 size_t n; 52 trim = TRUE; 53 for (n = first; n < *len; ++n) { 54 if (tolower(UChar(a[n])) != tolower(UChar(ignore[n - first]))) { 55 trim = FALSE; 56 break; 57 } 58 } 59 if (trim) { 60 *len -= need; 61 } 62 } 63 } 64 } 65 #else 66 #define trim_suffix(a, len) /* nothing */ 67 #endif 68 69 bool 70 same_program(const char *a, const char *b) 71 { 72 size_t len_a = strlen(a); 73 size_t len_b = strlen(b); 74 75 trim_suffix(a, &len_a); 76 trim_suffix(b, &len_b); 77 78 return (len_a == len_b) && (strncmp(a, b, len_a) == 0); 79 } 80