src/main/c/StringUtil.cpp

// Copyright (c) 2013, Matt Godbolt
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.

#include "seasocks/StringUtil.h"

#include <cctype>
#include <cerrno>
#include <cstddef>
#include <cstdio>
#include <cstring>

namespace seasocks {

char* skipWhitespace(char* str) {
    while (isspace(*str)) ++str;
    return str;
}

char* skipNonWhitespace(char* str) {
    while (*str && !isspace(*str)) {
        ++str;
    }
    return str;
}

char* shift(char*& str) {
    if (str == NULL) {
        return NULL;
    }
    char* startOfWord = skipWhitespace(str);
    if (*startOfWord == 0) {
        str = startOfWord;
        return NULL;
    }
    char* endOfWord = skipNonWhitespace(startOfWord);
    if (*endOfWord != 0) {
        *endOfWord++ = 0;
    }
    str = endOfWord;
    return startOfWord;
}

std::string getLastError(){
    char errbuf[1024];
    return strerror_r(errno, errbuf, sizeof(errbuf));
}

std::string formatAddress(const sockaddr_in& address) {
    char ipBuffer[24];
    sprintf(ipBuffer,
            "%d.%d.%d.%d:%d",
            (address.sin_addr.s_addr >> 0) & 0xff,
            (address.sin_addr.s_addr >> 8) & 0xff,
            (address.sin_addr.s_addr >> 16) & 0xff,
            (address.sin_addr.s_addr >> 24) & 0xff,
            htons(address.sin_port));
    return ipBuffer;
}

std::vector<std::string> split(const std::string& input, char splitChar) {
    if (input.empty()) return std::vector<std::string>();
    std::vector<std::string> result;
    size_t pos = 0;
    size_t newPos;
    while ((newPos = input.find(splitChar, pos)) != std::string::npos) {
        result.push_back(input.substr(pos, newPos - pos));
        pos = newPos + 1;
    }
    result.push_back(input.substr(pos));
    return result;
}

void replace(std::string& string, const std::string& find, const std::string& replace) {
    size_t pos = 0;
    const size_t findLen = find.length();
    const size_t replaceLen = replace.length();
    while ((pos = string.find(find, pos)) != std::string::npos) {
        string = string.substr(0, pos) + replace + string.substr(pos + findLen);
        pos += replaceLen;
    }
}

bool caseInsensitiveSame(const std::string &lhs, const std::string &rhs) {
    return strcasecmp(lhs.c_str(), rhs.c_str()) == 0;
}

}