123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141 |
- /*
- * 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>
- 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<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
|