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AK: Add String::equals_ignoring_case(StringView)

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This commit is contained in:
Andreas Kling 2019-12-18 12:43:53 +01:00
parent 413618454b
commit e3c0e75055
Notes: sideshowbarker 2024-07-19 10:49:31 +09:00
2 changed files with 21 additions and 0 deletions
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19
AK/String.cpp
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@ -7,6 +7,13 @@
extern "C" char* strstr(const char* haystack, const char* needle); extern "C" char* strstr(const char* haystack, const char* needle);
#endif #endif
static inline char to_lowercase(char c)
{
if (c >= 'A' && c <= 'Z')
return c | 0x20;
return c;
}
namespace AK { namespace AK {
bool String::operator==(const String& other) const bool String::operator==(const String& other) const
@ -322,5 +329,17 @@ bool String::contains(const String& needle) const
return strstr(characters(), needle.characters()); return strstr(characters(), needle.characters());
} }
bool String::equals_ignoring_case(const StringView& other) const
{
if (other.m_impl == impl())
return true;
if (length() != other.length())
return false;
for (size_t i = 0; i < length(); ++i) {
if (::to_lowercase(characters()[i]) != ::to_lowercase(other.characters_without_null_termination()[i]))
return false;
}
return true;
} }
}

2
AK/String.h
View file

@ -110,6 +110,8 @@ public:
return m_impl->to_uppercase(); return m_impl->to_uppercase();
} }
bool equals_ignoring_case(const StringView&) const;
bool contains(const String&) const; bool contains(const String&) const;
Vector<String> split_limit(char separator, size_t limit) const; Vector<String> split_limit(char separator, size_t limit) const;