From 6c927109ecec502d5554ce22c9fe6c87018755ae Mon Sep 17 00:00:00 2001
From: mrbesen <y.g.2@gmx.de>
Date: Tue, 29 Sep 2020 15:12:46 +0200
Subject: [PATCH] start/endsWith

---
 inc/util.h          |  4 ++++
 src/Util.cpp        | 16 ++++++++++++++++
 tests/main.cpp      |  3 ++-
 tests/utilstest.cpp | 21 +++++++++++++++++++++
 4 files changed, 43 insertions(+), 1 deletion(-)

diff --git a/inc/util.h b/inc/util.h
index da2aa52..ec6b5ea 100644
--- a/inc/util.h
+++ b/inc/util.h
@@ -12,4 +12,8 @@ void toLower(const std::string& in, std::string& out); //copy toLower
 
 void toLower(std::string& in); //inplace toLower
 
+bool endsWith(const std::string& str, const std::string& ending);
+
+bool startsWith(const std::string& str, const std::string& start);
+
 }
\ No newline at end of file
diff --git a/src/Util.cpp b/src/Util.cpp
index d759bf1..e13c9b4 100644
--- a/src/Util.cpp
+++ b/src/Util.cpp
@@ -54,3 +54,19 @@ void mrbesen::Util::toLower(std::string& in) {
 		in[p] = std::tolower(in[p]);
 	}
 }
+
+bool mrbesen::Util::endsWith(const std::string& str, const std::string& ending) {
+	size_t es = ending.size();
+	size_t ss = str.size();
+	if(es > ss) return false;
+	if(es == 0) return true;
+
+	return str.rfind(ending) == (ss - es);
+}
+
+bool mrbesen::Util::startsWith(const std::string& str, const std::string& start) {
+	if(start.size() > str.size()) return false;
+	if(start.size() == 0) return true;
+
+	return str.find(start) == 0;
+}
diff --git a/tests/main.cpp b/tests/main.cpp
index 9e0774a..1e2e9f6 100644
--- a/tests/main.cpp
+++ b/tests/main.cpp
@@ -9,8 +9,9 @@ int testFiles_extention();
 int testUtil_Count();
 int testUtil_equalsIgnoreCase();
 int testUtil_toLower();
+int testUtil_start_endWith();
 
-test_t tests[] = {testFiles_parent, testFiles_file, testFiles_extention, testUtil_Count, testUtil_equalsIgnoreCase, testUtil_toLower, NULL};
+test_t tests[] = {testFiles_parent, testFiles_file, testFiles_extention, testUtil_Count, testUtil_equalsIgnoreCase, testUtil_toLower, testUtil_start_endWith, NULL};
 
 int main(int argc, char** argv) {
 
diff --git a/tests/utilstest.cpp b/tests/utilstest.cpp
index 8712d9e..c0fe73d 100644
--- a/tests/utilstest.cpp
+++ b/tests/utilstest.cpp
@@ -68,3 +68,24 @@ int testUtil_toLower() {
 
 	return TESTGOOD;
 }
+
+
+int testUtil_start_endWith() {
+	std::string a = "abcdefghijklm";
+	
+	ASSERT(startsWith(a, ""), "");
+	ASSERT(startsWith(a, "a"), "");
+	ASSERT(!startsWith(a, "b"), "");
+	ASSERT(!startsWith(a, "abcdefghijklmn"), "");
+	ASSERT(!startsWith(a, "abcdefhhijklm"), "");
+	ASSERT(startsWith(a, a), "");
+
+	ASSERT(endsWith(a, ""), "");
+	ASSERT(endsWith(a, "m"), "");
+	ASSERT(!endsWith(a, "n"), "");
+	ASSERT(!endsWith(a, "abcdefghijklmn"), "");
+	ASSERT(!endsWith(a, "abcdefhhijklm"), "");
+	ASSERT(endsWith(a, a), "");
+
+	return TESTGOOD;
+}
\ No newline at end of file