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/*
* Copyright (C) 2005 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_STRING8_H
#define ANDROID_STRING8_H
#include <iostream>
#include <utils/Errors.h>
#include <utils/Unicode.h>
#include <utils/TypeHelpers.h>
#include <string.h> // for strcmp
#include <stdarg.h>
#if __has_include(<string>)
#include <string>
#define HAS_STRING
#endif
#if __has_include(<string_view>)
#include <string_view>
#define HAS_STRING_VIEW
#endif
// ---------------------------------------------------------------------------
namespace android {
class String16;
// DO NOT USE: please use std::string
//! This is a string holding UTF-8 characters. Does not allow the value more
// than 0x10FFFF, which is not valid unicode codepoint.
class String8
{
public:
String8();
String8(const String8& o);
explicit String8(const char* o);
explicit String8(const char* o, size_t numChars);
explicit String8(const String16& o);
explicit String8(const char16_t* o);
explicit String8(const char16_t* o, size_t numChars);
explicit String8(const char32_t* o);
explicit String8(const char32_t* o, size_t numChars);
~String8();
static String8 format(const char* fmt, ...) __attribute__((format (printf, 1, 2)));
static String8 formatV(const char* fmt, va_list args);
inline const char* c_str() const;
inline const char* string() const;
inline size_t size() const;
inline size_t bytes() const;
inline bool empty() const;
size_t length() const;
void clear();
void setTo(const String8& other);
status_t setTo(const char* other);
status_t setTo(const char* other, size_t numChars);
status_t setTo(const char16_t* other, size_t numChars);
status_t setTo(const char32_t* other,
size_t length);
status_t append(const String8& other);
status_t append(const char* other);
status_t append(const char* other, size_t numChars);
status_t appendFormat(const char* fmt, ...)
__attribute__((format (printf, 2, 3)));
status_t appendFormatV(const char* fmt, va_list args);
inline String8& operator=(const String8& other);
inline String8& operator=(const char* other);
inline String8& operator+=(const String8& other);
inline String8 operator+(const String8& other) const;
inline String8& operator+=(const char* other);
inline String8 operator+(const char* other) const;
inline int compare(const String8& other) const;
inline bool operator<(const String8& other) const;
inline bool operator<=(const String8& other) const;
inline bool operator==(const String8& other) const;
inline bool operator!=(const String8& other) const;
inline bool operator>=(const String8& other) const;
inline bool operator>(const String8& other) const;
inline bool operator<(const char* other) const;
inline bool operator<=(const char* other) const;
inline bool operator==(const char* other) const;
inline bool operator!=(const char* other) const;
inline bool operator>=(const char* other) const;
inline bool operator>(const char* other) const;
inline operator const char*() const;
#ifdef HAS_STRING_VIEW
inline explicit operator std::string_view() const;
#endif
char* lockBuffer(size_t size);
void unlockBuffer();
status_t unlockBuffer(size_t size);
// return the index of the first byte of other in this at or after
// start, or -1 if not found
ssize_t find(const char* other, size_t start = 0) const;
inline ssize_t find(const String8& other, size_t start = 0) const;
// return true if this string contains the specified substring
inline bool contains(const char* other) const;
inline bool contains(const String8& other) const;
// removes all occurrence of the specified substring
// returns true if any were found and removed
bool removeAll(const char* other);
inline bool removeAll(const String8& other);
void toLower();
private:
String8 getPathDir(void) const;
String8 getPathExtension(void) const;
status_t real_append(const char* other, size_t numChars);
const char* mString;
// These symbols are for potential backward compatibility with prebuilts. To be removed.
#ifdef ENABLE_STRING8_OBSOLETE_METHODS
public:
#else
private:
#endif
inline bool isEmpty() const;
};
// String8 can be trivially moved using memcpy() because moving does not
// require any change to the underlying SharedBuffer contents or reference count.
ANDROID_TRIVIAL_MOVE_TRAIT(String8)
static inline std::ostream& operator<<(std::ostream& os, const String8& str) {
os << str.c_str();
return os;
}
// ---------------------------------------------------------------------------
// No user servicable parts below.
inline int compare_type(const String8& lhs, const String8& rhs)
{
return lhs.compare(rhs);
}
inline int strictly_order_type(const String8& lhs, const String8& rhs)
{
return compare_type(lhs, rhs) < 0;
}
inline const char* String8::c_str() const
{
return mString;
}
inline const char* String8::string() const
{
return mString;
}
inline size_t String8::size() const
{
return length();
}
inline bool String8::empty() const
{
return length() == 0;
}
inline bool String8::isEmpty() const
{
return length() == 0;
}
inline size_t String8::bytes() const
{
return length();
}
inline ssize_t String8::find(const String8& other, size_t start) const
{
return find(other.c_str(), start);
}
inline bool String8::contains(const char* other) const
{
return find(other) >= 0;
}
inline bool String8::contains(const String8& other) const
{
return contains(other.c_str());
}
inline bool String8::removeAll(const String8& other)
{
return removeAll(other.c_str());
}
inline String8& String8::operator=(const String8& other)
{
setTo(other);
return *this;
}
inline String8& String8::operator=(const char* other)
{
setTo(other);
return *this;
}
inline String8& String8::operator+=(const String8& other)
{
append(other);
return *this;
}
inline String8 String8::operator+(const String8& other) const
{
String8 tmp(*this);
tmp += other;
return tmp;
}
inline String8& String8::operator+=(const char* other)
{
append(other);
return *this;
}
inline String8 String8::operator+(const char* other) const
{
String8 tmp(*this);
tmp += other;
return tmp;
}
inline int String8::compare(const String8& other) const
{
return strcmp(mString, other.mString);
}
inline bool String8::operator<(const String8& other) const
{
return strcmp(mString, other.mString) < 0;
}
inline bool String8::operator<=(const String8& other) const
{
return strcmp(mString, other.mString) <= 0;
}
inline bool String8::operator==(const String8& other) const
{
return strcmp(mString, other.mString) == 0;
}
inline bool String8::operator!=(const String8& other) const
{
return strcmp(mString, other.mString) != 0;
}
inline bool String8::operator>=(const String8& other) const
{
return strcmp(mString, other.mString) >= 0;
}
inline bool String8::operator>(const String8& other) const
{
return strcmp(mString, other.mString) > 0;
}
inline bool String8::operator<(const char* other) const
{
return strcmp(mString, other) < 0;
}
inline bool String8::operator<=(const char* other) const
{
return strcmp(mString, other) <= 0;
}
inline bool String8::operator==(const char* other) const
{
return strcmp(mString, other) == 0;
}
inline bool String8::operator!=(const char* other) const
{
return strcmp(mString, other) != 0;
}
inline bool String8::operator>=(const char* other) const
{
return strcmp(mString, other) >= 0;
}
inline bool String8::operator>(const char* other) const
{
return strcmp(mString, other) > 0;
}
inline String8::operator const char*() const
{
return mString;
}
#ifdef HAS_STRING_VIEW
inline String8::operator std::string_view() const
{
return {mString, length()};
}
#endif
} // namespace android
// ---------------------------------------------------------------------------
#undef HAS_STRING
#undef HAS_STRING_VIEW
#endif // ANDROID_STRING8_H