/*
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* StringUtils.cpp
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*
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* Created on: Apr 8, 2014
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*
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*/
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#include <cctype> //toupper
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#include <iostream>
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#include <string>
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#include <sstream>
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#include <cstring>
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#include <algorithm>
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#include <stdexcept>
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#include <regex>
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#include "string_utils.h"
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#ifdef _WIN32
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#include <time.h> //mktime under windows
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#endif
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namespace license {
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using namespace std;
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string trim_copy(const string &string_to_trim) {
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std::string::const_iterator it = string_to_trim.begin();
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while (it != string_to_trim.end() && isspace(*it)) {
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++it;
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}
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std::string::const_reverse_iterator rit = string_to_trim.rbegin();
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while (rit.base() != it && (isspace(*rit) || *rit == 0)) {
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++rit;
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}
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return std::string(it, rit.base());
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}
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string toupper_copy(const string &lowercase) {
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string cp(lowercase);
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std::transform(cp.begin(), cp.end(), cp.begin(), (int (*)(int))toupper);
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return cp;
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}
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time_t seconds_from_epoch(const string &timeString) {
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int year, month, day;
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tm tm;
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if (timeString.size() == 8) {
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const int nfield = sscanf(timeString.c_str(), "%4d%2d%2d", &year, &month, &day);
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if (nfield != 3) {
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throw invalid_argument("Date not recognized");
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}
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} else if (timeString.size() == 10) {
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const int nfield = sscanf(timeString.c_str(), "%4d-%2d-%2d", &year, &month, &day);
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if (nfield != 3) {
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const int nfield = sscanf(timeString.c_str(), "%4d/%2d/%2d", &year, &month, &day);
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if (nfield != 3) {
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throw invalid_argument("Date [" + timeString + "] not recognized");
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}
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}
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} else {
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throw invalid_argument("Date [" + timeString + "] not recognized");
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}
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tm.tm_isdst = -1;
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tm.tm_year = year - 1900;
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tm.tm_mon = month - 1;
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tm.tm_mday = day;
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tm.tm_hour = 0;
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tm.tm_min = 0;
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tm.tm_sec = 0;
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tm.tm_yday = -1;
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tm.tm_wday = -1;
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return mktime(&tm);
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}
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const vector<string> split_string(const string &licensePositions, char splitchar) {
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std::stringstream streamToSplit(licensePositions);
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std::string segment;
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std::vector<string> seglist;
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while (std::getline(streamToSplit, segment, splitchar)) {
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seglist.push_back(segment);
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}
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return seglist;
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}
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const static regex iniSection("\\[.*?\\]");
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const static regex b64("^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?$");
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FILE_FORMAT identify_format(const string &license) {
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FILE_FORMAT result = UNKNOWN;
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if (regex_match(license, b64)) {
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result = BASE64;
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} else if (regex_search(license, iniSection)) {
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result = INI;
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}
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return result;
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}
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// strnln_s is not well supported and strlen is marked unsafe..
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size_t mstrnlen_s(const char *szptr, size_t maxsize) {
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if (szptr == nullptr) {
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return 0;
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}
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size_t count = 0;
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while (*szptr++ && maxsize--) {
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count++;
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}
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return count;
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}
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} /* namespace license */
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