From d35591346c48606697898338c1c01a3d52c520eb Mon Sep 17 00:00:00 2001
From: gcontini <1121667+gcontini@users.noreply.github.com>
Date: 周三, 01 1月 2020 20:23:54 +0800
Subject: [PATCH] update build system and cleanup

---
 src/library/base/StringUtils.cpp |   71 ++++++++++++++++++++++++-----------
 1 files changed, 48 insertions(+), 23 deletions(-)

diff --git a/src/library/base/StringUtils.cpp b/src/library/base/StringUtils.cpp
index 3e34432..b09cdfe 100644
--- a/src/library/base/StringUtils.cpp
+++ b/src/library/base/StringUtils.cpp
@@ -2,61 +2,62 @@
  * StringUtils.cpp
  *
  *  Created on: Apr 8, 2014
- *      
+ *
  */
 
-#include <cctype> //toupper
-#include "StringUtils.h"
+#include <cctype>  //toupper
 #include <iostream>
 #include <string>
 #include <sstream>
 #include <cstring>
 #include <algorithm>
 #include <stdexcept>
+#include <regex>
+#include "StringUtils.h"
 
 #ifdef _WIN32
-#include <time.h> //mktime under windows
+#include <time.h>  //mktime under windows
 #endif
 
 namespace license {
 using namespace std;
 
-string trim_copy(const string& string_to_trim) {
+string trim_copy(const string &string_to_trim) {
 	std::string::const_iterator it = string_to_trim.begin();
-	while (it != string_to_trim.end() && isspace(*it))
-		it++;
-
+	while (it != string_to_trim.end() && isspace(*it)) {
+		++it;
+	}
 	std::string::const_reverse_iterator rit = string_to_trim.rbegin();
-	while (rit.base() != it && isspace(*rit))
-		rit++;
-
+	while (rit.base() != it && isspace(*rit)) {
+		++rit;
+	}
 	return std::string(it, rit.base());
 }
 
-string toupper_copy(const string& lowercase) {
+string toupper_copy(const string &lowercase) {
 	string cp(lowercase);
 	std::transform(cp.begin(), cp.end(), cp.begin(), (int (*)(int))toupper);
 	return cp;
 }
 
-time_t seconds_from_epoch(const char* timeString) {
+time_t seconds_from_epoch(const string &timeString) {
 	int year, month, day;
 	tm tm;
-	if (strlen(timeString) == 8) {
-		const int nfield = sscanf(timeString, "%4d%2d%2d", &year, &month, &day);
+	if (timeString.size() == 8) {
+		const int nfield = sscanf(timeString.c_str(), "%4d%2d%2d", &year, &month, &day);
 		if (nfield != 3) {
 			throw invalid_argument("Date not recognized");
 		}
-	} else if (strlen(timeString) == 10) {
-		const int nfield = sscanf(timeString, "%4d-%2d-%2d", &year, &month, &day);
+	} else if (timeString.size() == 10) {
+		const int nfield = sscanf(timeString.c_str(), "%4d-%2d-%2d", &year, &month, &day);
 		if (nfield != 3) {
-			const int nfield = sscanf(timeString, "%4d/%2d/%2d", &year, &month, &day);
+			const int nfield = sscanf(timeString.c_str(), "%4d/%2d/%2d", &year, &month, &day);
 			if (nfield != 3) {
-				throw invalid_argument("Date not recognized");
+				throw invalid_argument("Date [" + timeString + "] not recognized");
 			}
 		}
-	} else{
-		throw invalid_argument("Date not recognized");
+	} else {
+		throw invalid_argument("Date [" + timeString + "] not recognized");
 	}
 	tm.tm_isdst = -1;
 	tm.tm_year = year - 1900;
@@ -70,8 +71,7 @@
 	return mktime(&tm);
 }
 
-
-const vector<string> split_string(const string& licensePositions,char splitchar) {
+const vector<string> split_string(const string &licensePositions, char splitchar) {
 	std::stringstream streamToSplit(licensePositions);
 	std::string segment;
 	std::vector<string> seglist;
@@ -82,4 +82,29 @@
 	return seglist;
 }
 
+const static regex iniSection("\\[.*?\\]");
+const static regex b64("^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?$");
+
+FILE_FORMAT identify_format(const string &license) {
+	FILE_FORMAT result = UNKNOWN;
+	if (regex_match(license, b64)) {
+		result = BASE64;
+	} else if (regex_search(license, iniSection)) {
+		result = INI;
+	}
+	return result;
+}
+
+// strnln_s is not well supported and strlen is marked unsafe..
+size_t mstrnlen_s(const char *szptr, size_t maxsize) {
+	if (szptr == nullptr) {
+		return 0;
+	}
+	size_t count = 0;
+	while (*szptr++ && maxsize--) {
+		count++;
+	}
+	return count;
+}
+
 } /* namespace license */

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