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s_string.cpp

/*
 * s_string.cpp
 *
 * Copyright (c) 2008, eFTE SF Group (see AUTHORS file)
 *
 * You may distribute under the terms of either the GNU General Public
 * License or the Artistic License, as specified in the README file.
 *
 */

#include "fte.h"
#include <string.h>

int UnTabStr(char *dest, int maxlen, const char *source, int slen) {
    char *p = dest;
    int i;
    int pos = 0;

    maxlen--;
    for (i = 0; i < slen; i++) {
        if (maxlen > 0) {
            if (source[i] == '\t') {
                do {
                    if (maxlen > 0) {
                        *p++ = ' ';
                        maxlen--;
                    }
                    pos++;
                } while (pos & 0x7);
            } else {
                *p++ = source[i];
                pos++;
                maxlen--;
            }
        } else
            break;
    }

    //dest[pos] = 0;
    *p = '\0';
    return pos;
}

#if !defined(HAVE_STRLCPY)
size_t strlcpy(char *dst, const char *src, size_t size) {
    size_t ret = strlen(src);

    if (size) {
        size_t len = (ret >= size) ? size - 1 : ret;
        memcpy(dst, src, len);
        dst[len] = '\0';
    }

    return ret;
}
#endif // !HAVE_STRLCPY

#if !defined(HAVE_STRLCAT)
size_t strlcat(char *dst, const char *src, size_t size) {
    size_t dst_len = strlen(dst);
    size_t src_len = strlen(src);

    if (size) {
        size_t len = (src_len >= size - dst_len) ? (size - dst_len - 1) : src_len;
        memcpy(&dst[dst_len], src, len);
        dst[dst_len + len] = '\0';
    }

    return dst_len + src_len;
}
#endif // !HAVE_STRLCAT

#if !defined(HAVE_STRICMP)
int stricmp(const char *a, const char *b) {
    if (a != NULL && b == NULL) return  1;
    if (a == NULL && b != NULL) return -1;
    if (a == NULL && b == NULL) return  0;

    int aLen = strlen(a);
    int bLen = strlen(b);

    int minLen = aLen < bLen ? aLen : bLen;

    for (int idx=0; idx < minLen; idx++) {
        char aC = toupper(a[idx]);
        char bC = toupper(b[idx]);

        if (aC > bC)      return  1;
        else if (aC < bC) return -1;
    }

    if (aLen < bLen)      return -1;
    else if (aLen > bLen) return  1;
    else                  return  0;
}
#endif // !HAVE_STRICMP

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