/****************************************************************************** * * utilstr.cpp - String utility functions * * $Id$ * * Copyright 1997-2013 CrossWire Bible Society (http://www.crosswire.org) * CrossWire Bible Society * P. O. Box 2528 * Tempe, AZ 85280-2528 * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation version 2. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * */ #include #include #include #include #include #include SWORD_NAMESPACE_START const unsigned char SW_toupper_array[256] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, 0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xf7, 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xff }; /****************************************************************************** * strstrip - Removes leading and trailing spaces from a string * * ENT: istr - string pointer to strip * * RET: *istr */ char *strstrip(char *istr) { char *tmp = istr; char *rtmp; int len = (int)strlen(istr); if (len < 1) return istr; rtmp = istr + (len - 1); while ((rtmp > istr)&&((*rtmp == ' ')||(*rtmp == '\t')||(*rtmp == 10)||(*rtmp == 13))) *(rtmp--) = 0; while ((*tmp == ' ')||(*tmp == '\t')||(*tmp == 10)||(*tmp == 13)) tmp++; memmove(istr, tmp, (rtmp - tmp) + 1); istr[(rtmp - tmp) + 1] = 0; return istr; } /****************************************************************************** * stristr - Scans a string for the occurrence of a given substring, no case * * ENT: scans s1 for the first occurrence of the substring s2, ingnoring case * * RET: a pointer to the element in s1, where s2 begins (points to s2 in s1). * If s2 does not occur in s1, returns null. */ const char *stristr(const char *s1, const char *s2) { int tLen = (int)strlen(s2); int cLen = (int)strlen(s1); char *target = new char [ tLen + 1 ]; int i, j; const char *retVal = 0; strcpy(target, s2); for (i = 0; i < tLen; i++) target[i] = SW_toupper(target[i]); for (i = 0; i < (cLen - tLen)+1; i++) { if (SW_toupper(s1[i]) == (unsigned char)*target) { for (j = 1; j < tLen; j++) { if (SW_toupper(s1[i+j]) != (unsigned char)target[j]) break; } if (j == tLen) { retVal = s1+i; break; } } } delete [] target; return retVal; } /****************************************************************************** * strnicmp - compares the first n bytes of 2 strings ignoring case * * ENT: compares s1 to s2 comparing the first n byte ingnoring case * * RET: same as strcmp */ int strnicmp(const char *s1, const char *s2, int len) { int tLen = (int)strlen(s2); int cLen = (int)strlen(s1); char diff; int i; for (i = 0; ((i < len) && (i < tLen) && (i < cLen)); i++) { if ((diff = SW_toupper(*s1) - SW_toupper(*s2))) return diff; s1++; s2++; } return (i < len) ? cLen - tLen : 0; } int stricmp(const char *s1, const char *s2) { #if defined(__GNUC__) return ::strcasecmp(s1, s2); #else #if defined(_WIN32_WCE) return ::_stricmp(s1, s2); #else return ::stricmp(s1, s2); #endif #endif } SWBuf assureValidUTF8(const char *buf) { SWBuf myCopy = buf; const unsigned char *b = (const unsigned char *)myCopy.c_str(); const unsigned char *q = 0; bool invalidChar = false; while (*b) { q = b; if (!getUniCharFromUTF8(&b)) { long len = b - q; if (len) { invalidChar = true; for (long start = q - (const unsigned char *)myCopy.c_str(); len; len--) { myCopy[start+len-1] = 0x1a; // unicode replacement character } } } } if (invalidChar) { // SWLog::getSystemLog()->logWarning("Changing invalid UTF-8 string (%s) to (%s)\n", buf, myCopy.c_str()); } return myCopy; } /**** * This can be called to convert a UTF8 stream to an SWBuf which manages * a wchar_t[] * access buffer with (wchar_t *)SWBuf::getRawData(); * */ SWBuf utf8ToWChar(const char *buf) { const char *q = 0; SWBuf wcharBuf; while (*buf) { q = buf; wchar_t wc = getUniCharFromUTF8((const unsigned char **)&buf); if (!wc) { // if my buffer was advanced but nothing was converted, I had invalid data if (buf - q) { // invalid bytes in UTF8 stream wcharBuf.append((wchar_t)0x1a); // unicode replacement character } } else wcharBuf.append(wc); } return wcharBuf; } /**** * This can be called to convert a wchar_t[] to a UTF-8 SWBuf * */ SWBuf wcharToUTF8(const wchar_t *buf) { SWBuf utf8Buf; while (*buf) { getUTF8FromUniChar(*buf++, &utf8Buf); } return utf8Buf; } SWORD_NAMESPACE_END