blob: 99f3dce57a8277c9e61b9c4b2804cc2900fde212 [file] [log] [blame]
/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SKSL_STRING
#define SKSL_STRING
#include "src/sksl/SkSLDefines.h"
#include <cstring>
#include <stdarg.h>
#include <string>
#ifndef SKSL_STANDALONE
#include "include/core/SkString.h"
#endif
namespace SkSL {
// Represents a (not necessarily null-terminated) slice of a string.
struct StringFragment {
StringFragment()
: fChars("")
, fLength(0) {}
StringFragment(const char* chars)
: fChars(chars)
, fLength(strlen(chars)) {}
StringFragment(const char* chars, size_t length)
: fChars(chars)
, fLength(length) {}
char operator[](size_t idx) const {
return fChars[idx];
}
bool operator==(const char* s) const;
bool operator!=(const char* s) const;
bool operator==(StringFragment s) const;
bool operator!=(StringFragment s) const;
bool operator<(StringFragment s) const;
#ifndef SKSL_STANDALONE
operator SkString() const { return SkString(fChars, fLength); }
#endif
const char* fChars;
size_t fLength;
};
bool operator==(const char* s1, StringFragment s2);
bool operator!=(const char* s1, StringFragment s2);
class SK_API String : public std::string {
public:
String() = default;
String(const String&) = default;
String(String&&) = default;
String& operator=(const String&) = default;
String& operator=(String&&) = default;
String(const char* s)
: INHERITED(s) {}
String(const char* s, size_t size)
: INHERITED(s, size) {}
String(StringFragment s)
: INHERITED(s.fChars, s.fLength) {}
static String printf(const char* fmt, ...);
void appendf(const char* fmt, ...);
// For API compatibility with SkString's reset (vs. std:string's clear)
void reset();
// For API compatibility with SkString's findLastOf(vs. find_last_of -> size_t)
int findLastOf(const char c) const;
void vappendf(const char* fmt, va_list va);
bool startsWith(const char* s) const;
bool endsWith(const char* s) const;
int find(const char* substring, int fromPos = 0) const;
int find(const String& substring, int fromPos = 0) const;
String operator+(const char* s) const;
String operator+(const String& s) const;
String operator+(StringFragment s) const;
String& operator+=(char c);
String& operator+=(const char* s);
String& operator+=(const String& s);
String& operator+=(StringFragment s);
bool operator==(const char* s) const;
bool operator!=(const char* s) const;
bool operator==(const String& s) const;
bool operator!=(const String& s) const;
friend String operator+(const char* s1, const String& s2);
friend bool operator==(const char* s1, const String& s2);
friend bool operator!=(const char* s1, const String& s2);
private:
typedef std::string INHERITED;
};
String operator+(const char* s1, const String& s2);
bool operator!=(const char* s1, const String& s2);
String to_string(double value);
String to_string(int32_t value);
String to_string(uint32_t value);
String to_string(int64_t value);
String to_string(uint64_t value);
SKSL_INT stoi(const String& s);
SKSL_FLOAT stod(const String& s);
long stol(const String& s);
} // namespace SkSL
namespace std {
template<> struct hash<SkSL::StringFragment> {
size_t operator()(const SkSL::StringFragment& s) const {
size_t result = 0;
for (size_t i = 0; i < s.fLength; ++i) {
result = result * 101 + s.fChars[i];
}
return result;
}
};
template<> struct hash<SkSL::String> {
size_t operator()(const SkSL::String& s) const {
return hash<std::string>{}(s);
}
};
} // namespace std
#endif