From 607c2c5ba2c19f29c94690c5cc1e28c894286f70 Mon Sep 17 00:00:00 2001 From: Max Kellermann Date: Fri, 16 Oct 2015 19:15:30 +0200 Subject: util/StringUtil: add StringAfterPrefix() --- src/util/WStringUtil.cxx | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'src/util/WStringUtil.cxx') diff --git a/src/util/WStringUtil.cxx b/src/util/WStringUtil.cxx index b70a7749e..19e4fc68d 100644 --- a/src/util/WStringUtil.cxx +++ b/src/util/WStringUtil.cxx @@ -42,6 +42,21 @@ StringEndsWith(const wchar_t *haystack, const wchar_t *needle) StringIsEqual(haystack + haystack_length - needle_length, needle); } +const wchar_t * +StringAfterPrefix(const wchar_t *string, const wchar_t *prefix) +{ +#if !CLANG_CHECK_VERSION(3,6) + /* disabled on clang due to -Wtautological-pointer-compare */ + assert(string != nullptr); + assert(prefix != nullptr); +#endif + + size_t prefix_length = StringLength(prefix); + return StringIsEqual(string, prefix, prefix_length) + ? string + prefix_length + : nullptr; +} + const wchar_t * FindStringSuffix(const wchar_t *p, const wchar_t *suffix) { -- cgit v1.2.3