From e693acaa66831640ac2df1993401d2bf81a96de1 Mon Sep 17 00:00:00 2001
From: kroimon <kroimon@726aef4b-f618-498e-8847-2d620e286838>
Date: Sun, 28 Sep 2008 16:59:28 +0000
Subject: [PATCH] Added CString::TrimPrefix() and CString::TrimSuffix() These
 functions remove prefix/suffix strings if possible.

git-svn-id: https://znc.svn.sourceforge.net/svnroot/znc/trunk@1224 726aef4b-f618-498e-8847-2d620e286838
---
 ZNCString.cpp | 31 +++++++++++++++++++++++++++++++
 ZNCString.h   |  5 +++++
 2 files changed, 36 insertions(+)

diff --git a/ZNCString.cpp b/ZNCString.cpp
index 440ab782..a0a558b7 100644
--- a/ZNCString.cpp
+++ b/ZNCString.cpp
@@ -965,6 +965,37 @@ CString CString::TrimRight_n(const CString& s) const {
 	return sRet;
 }
 
+bool CString::TrimPrefix(const CString& sPrefix) {
+	if (CaseCmp(sPrefix, sPrefix.length()) == 0) {
+		LeftChomp(sPrefix.length());
+		return true;
+	} else {
+		return false;
+	}
+}
+
+bool CString::TrimSuffix(const CString& sSuffix) {
+	if (Right(sSuffix.length()).CaseCmp(sSuffix) == 0) {
+		RightChomp(sSuffix.length());
+		return true;
+	} else {
+		return false;
+	}
+}
+
+
+CString CString::TrimPrefix_n(const CString& sPrefix) const {
+	CString sRet = *this;
+	sRet.TrimPrefix(sPrefix);
+	return sRet;
+}
+
+CString CString::TrimSuffix_n(const CString& sSuffix) const {
+	CString sRet = *this;
+	sRet.TrimSuffix(sSuffix);
+	return sRet;
+}
+
 CString CString::LeftChomp_n(unsigned int uLen) const {
 	CString sRet = *this;
 	sRet.LeftChomp(uLen);
diff --git a/ZNCString.h b/ZNCString.h
index 66baae83..683e0356 100644
--- a/ZNCString.h
+++ b/ZNCString.h
@@ -147,6 +147,11 @@ public:
 	CString TrimLeft_n(const CString& s = " \t\r\n") const;
 	CString TrimRight_n(const CString& s = " \t\r\n") const;
 
+	bool TrimPrefix(const CString& sPrefix);
+	bool TrimSuffix(const CString& sSuffix);
+	CString TrimPrefix_n(const CString& sPrefix) const;
+	CString TrimSuffix_n(const CString& sSuffix) const;
+
 	bool LeftChomp(unsigned int uLen = 1);
 	bool RightChomp(unsigned int uLen = 1);
 	CString LeftChomp_n(unsigned int uLen = 1) const;