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Add a Chomp feature to String construction that removes a trailing newline.

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This will be useful in many situations.
This commit is contained in:
Andreas Kling 2018-11-07 00:19:35 +01:00
parent 90bab5ea71
commit 8135952832
Notes: sideshowbarker 2024-07-19 18:32:52 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/81359528321
4 changed files with 19 additions and 9 deletions
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2
AK/String.cpp
View File

@ -65,6 +65,8 @@ Vector<String> String::split(const char separator) const
size_t taillen = length() - substart; size_t taillen = length() - substart;
if (taillen != 0) if (taillen != 0)
v.append(substring(substart, taillen)); v.append(substring(substart, taillen));
if (characters()[length() - 1] == separator)
v.append(empty());
return v; return v;
} }

8
AK/String.h
View File

@ -24,13 +24,13 @@ public:
{ {
} }
String(const char* cstring) String(const char* cstring, ShouldChomp shouldChomp = NoChomp)
: m_impl(StringImpl::create(cstring)) : m_impl(StringImpl::create(cstring, shouldChomp))
{ {
} }
String(const char* cstring, size_t length) String(const char* cstring, size_t length, ShouldChomp shouldChomp = NoChomp)
: m_impl(StringImpl::create(cstring, length)) : m_impl(StringImpl::create(cstring, length, shouldChomp))
{ {
} }

11
AK/StringImpl.cpp
View File

@ -42,7 +42,7 @@ RetainPtr<StringImpl> StringImpl::createUninitialized(size_t length, char*& buff
return newStringImpl; return newStringImpl;
} }
RetainPtr<StringImpl> StringImpl::create(const char* cstring, size_t length) RetainPtr<StringImpl> StringImpl::create(const char* cstring, size_t length, ShouldChomp shouldChomp)
{ {
if (!cstring) if (!cstring)
return nullptr; return nullptr;
@ -54,15 +54,20 @@ RetainPtr<StringImpl> StringImpl::create(const char* cstring, size_t length)
auto newStringImpl = createUninitialized(length, buffer); auto newStringImpl = createUninitialized(length, buffer);
memcpy(buffer, cstring, length * sizeof(char)); memcpy(buffer, cstring, length * sizeof(char));
if (shouldChomp && buffer[length - 1] == '\n') {
buffer[length - 1] = '\0';
--newStringImpl->m_length;
}
return newStringImpl; return newStringImpl;
} }
RetainPtr<StringImpl> StringImpl::create(const char* cstring) RetainPtr<StringImpl> StringImpl::create(const char* cstring, ShouldChomp shouldChomp)
{ {
if (!cstring) if (!cstring)
return nullptr; return nullptr;
return create(cstring, strlen(cstring)); return create(cstring, strlen(cstring), shouldChomp);
} }
static inline bool isASCIILowercase(char c) static inline bool isASCIILowercase(char c)

7
AK/StringImpl.h
View File

@ -6,11 +6,13 @@
namespace AK { namespace AK {
enum ShouldChomp { NoChomp, Chomp };
class StringImpl : public Retainable<StringImpl> { class StringImpl : public Retainable<StringImpl> {
public: public:
static RetainPtr<StringImpl> createUninitialized(size_t length, char*& buffer); static RetainPtr<StringImpl> createUninitialized(size_t length, char*& buffer);
static RetainPtr<StringImpl> create(const char* cstring); static RetainPtr<StringImpl> create(const char* cstring, ShouldChomp = NoChomp);
static RetainPtr<StringImpl> create(const char* cstring, size_t length); static RetainPtr<StringImpl> create(const char* cstring, size_t length, ShouldChomp = NoChomp);
RetainPtr<StringImpl> toLowercase() const; RetainPtr<StringImpl> toLowercase() const;
RetainPtr<StringImpl> toUppercase() const; RetainPtr<StringImpl> toUppercase() const;
@ -50,3 +52,4 @@ private:
} }
using AK::StringImpl; using AK::StringImpl;
using AK::Chomp;