Ejemplo n.º 1
0
int ZLSearchUtil::find(const char *text, size_t length, const ZLSearchPattern &pattern, int pos) {
	if (pattern.ignoreCase()) {
		if (pos < 0) {
			pos = 0;
		}
		const std::string &lower = pattern.lowerCasePattern();
		const std::string &upper = pattern.upperCasePattern();
		const char *last = text + length - pattern.lowerCasePattern().length();
		const char *patternLast = lower.data() + lower.length() - 1;
		for (const char *i = text + pos; i <= last; ++i) {
			const char *j0 = lower.data();
			const char *j1 = upper.data();
			const char *k = i;
			for (; j0 <= patternLast; ++j0, ++j1, ++k) {
				if ((*j0 != *k) && (*j1 != *k)) {
					break;
				}
			}
			if (j0 > patternLast) {
				return i - text;
			}
		}
		return -1;
	} else {
		if (pos < 0) {
			pos = 0;
		}
		const std::string &lower = pattern.lowerCasePattern();
		const char *last = text + length - pattern.lowerCasePattern().length();
		const char *patternLast = lower.data() + lower.length() - 1;
		for (const char *i = text + pos; i <= last; ++i) {
			const char *j0 = lower.data();
			const char *k = i;
			for (; j0 <= patternLast; ++j0, ++k) {
				if (*j0 != *k) {
					break;
				}
			}
			if (j0 > patternLast) {
				return i - text;
			}
		}
		return -1;
	}
}
Ejemplo n.º 2
0
int ZLSearchUtil::find(const char *text, size_t length, const ZLSearchPattern &pattern, int pos) {
	if (pattern.ignoreCase()) {
		if (pos < 0) {
			pos = 0;
		}
		const std::string &lower = pattern.lowerCasePattern();
		const std::string &upper = pattern.upperCasePattern();
		const char *last = text + length - pattern.lowerCasePattern().length();
		const char *patternLast = lower.data() + lower.length() - 1;
		for (const char *i = text + pos; i <= last; ++i) {
			const char *j0 = lower.data();
			const char *j1 = upper.data();
			const char *k = i;
			for (; j0 <= patternLast; ++j0, ++j1, ++k) {
				if ((*j0 != *k) && (*j1 != *k)) {
					break;
				}
                                else
                                {
                                    if ((unsigned char)(*k) > 127)
                                    {
                                        if (j0 == patternLast)
                                            break;
                                        //check lower case
                                        if (*j0 == *k) {                                                 
                                                    if ((unsigned char)(*(j0 + 1)) != (unsigned char)(*(k + 1)))
                                                    {
                                                        goto check_upper_case;
                                                    }
                                                    ++j0, ++j1, ++k;
                                                    continue;
                                        }
                                        //check upper case
                                        check_upper_case:
                                        if (*j1 == *k) {
                                            if ((unsigned char)(*(j1 + 1)) != (unsigned char)(*(k + 1)))
                                            {
                                                break;
                                            }
                                            ++j0, ++j1, ++k;
                                            continue;
                                        }
                                    }
                                }
			}
			if (j0 > patternLast) {
				return i - text;
			}
		}
		return -1;
	} else {
		if (pos < 0) {
			pos = 0;
		}
		const std::string &lower = pattern.lowerCasePattern();
		const char *last = text + length - pattern.lowerCasePattern().length();
		const char *patternLast = lower.data() + lower.length() - 1;
		for (const char *i = text + pos; i <= last; ++i) {
			const char *j0 = lower.data();
			const char *k = i;
			for (; j0 <= patternLast; ++j0, ++k) {
				if (*j0 != *k) {
					break;
				}
			}
			if (j0 > patternLast) {
				return i - text;
			}
		}
		return -1;
	}
}