| /* |
| * 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: |
| using std::string::string; |
| |
| String(StringFragment s) : INHERITED(s.fChars, s.fLength) {} |
| |
| static String printf(const char* fmt, ...); |
| void appendf(const char* fmt, ...); |
| void vappendf(const char* fmt, va_list va); |
| |
| bool startsWith(const char* prefix) const; |
| bool endsWith(const char* suffix) 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 |