/* * 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 #include #include 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; 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 { 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 { size_t operator()(const SkSL::String& s) const { return hash{}(s); } }; } // namespace std #endif