| /* |
| * Copyright 2017 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "SkSLString.h" |
| |
| #include "SkSLUtil.h" |
| #include <errno.h> |
| #include <limits.h> |
| #include <locale> |
| #include <sstream> |
| #include <string> |
| |
| #if defined(STARBOARD) |
| #include "starboard/client_porting/poem/stdio_leaks_poem.h" |
| #include "starboard/client_porting/poem/stdlib_poem.h" |
| #endif |
| |
| namespace SkSL { |
| |
| String String::printf(const char* fmt, ...) { |
| va_list args; |
| va_start(args, fmt); |
| String result; |
| result.vappendf(fmt, args); |
| va_end(args); |
| return result; |
| } |
| |
| #ifdef SKSL_STANDALONE |
| void String::appendf(const char* fmt, ...) { |
| va_list args; |
| va_start(args, fmt); |
| this->vappendf(fmt, args); |
| va_end(args); |
| } |
| #endif |
| |
| void String::vappendf(const char* fmt, va_list args) { |
| #ifdef SKSL_BUILD_FOR_WIN |
| #define VSNPRINTF _vsnprintf |
| #else |
| #define VSNPRINTF vsnprintf |
| #endif |
| #define BUFFER_SIZE 256 |
| char buffer[BUFFER_SIZE]; |
| va_list reuse; |
| va_copy(reuse, args); |
| size_t size = VSNPRINTF(buffer, BUFFER_SIZE, fmt, args); |
| if (BUFFER_SIZE >= size) { |
| this->append(buffer, size); |
| } else { |
| auto newBuffer = std::unique_ptr<char[]>(new char[size + 1]); |
| VSNPRINTF(newBuffer.get(), size + 1, fmt, reuse); |
| this->append(newBuffer.get(), size); |
| } |
| va_end(reuse); |
| } |
| |
| |
| bool String::startsWith(const char* s) const { |
| return !strncmp(c_str(), s, strlen(s)); |
| } |
| |
| bool String::endsWith(const char* s) const { |
| size_t len = strlen(s); |
| if (size() < len) { |
| return false; |
| } |
| return !strncmp(c_str() + size() - len, s, len); |
| } |
| |
| String String::operator+(const char* s) const { |
| String result(*this); |
| result.append(s); |
| return result; |
| } |
| |
| String String::operator+(const String& s) const { |
| String result(*this); |
| result.append(s); |
| return result; |
| } |
| |
| bool String::operator==(const String& s) const { |
| return this->size() == s.size() && !memcmp(c_str(), s.c_str(), this->size()); |
| } |
| |
| bool String::operator!=(const String& s) const { |
| return !(*this == s); |
| } |
| |
| bool String::operator==(const char* s) const { |
| return this->size() == strlen(s) && !memcmp(c_str(), s, this->size()); |
| } |
| |
| bool String::operator!=(const char* s) const { |
| return !(*this == s); |
| } |
| |
| String operator+(const char* s1, const String& s2) { |
| String result(s1); |
| result.append(s2); |
| return result; |
| } |
| |
| bool operator==(const char* s1, const String& s2) { |
| return s2 == s1; |
| } |
| |
| bool operator!=(const char* s1, const String& s2) { |
| return s2 != s1; |
| } |
| |
| String to_string(int32_t value) { |
| return SkSL::String::printf("%d", value); |
| } |
| |
| String to_string(uint32_t value) { |
| return SkSL::String::printf("%u", value); |
| } |
| |
| String to_string(int64_t value) { |
| std::stringstream buffer; |
| buffer << value; |
| return String(buffer.str().c_str()); |
| } |
| |
| String to_string(uint64_t value) { |
| std::stringstream buffer; |
| buffer << value; |
| return String(buffer.str().c_str()); |
| } |
| |
| String to_string(double value) { |
| std::stringstream buffer; |
| buffer.imbue(std::locale::classic()); |
| buffer.precision(17); |
| buffer << value; |
| bool needsDotZero = true; |
| const std::string str = buffer.str(); |
| for (int i = str.size() - 1; i >= 0; --i) { |
| char c = str[i]; |
| if (c == '.' || c == 'e') { |
| needsDotZero = false; |
| break; |
| } |
| } |
| if (needsDotZero) { |
| buffer << ".0"; |
| } |
| return String(buffer.str().c_str()); |
| } |
| |
| int stoi(String s) { |
| char* p; |
| SKSL_DEBUGCODE(errno = 0;) |
| long result = strtoul(s.c_str(), &p, 0); |
| ASSERT(*p == 0); |
| ASSERT(!errno); |
| return (int) result; |
| } |
| |
| double stod(String s) { |
| double result; |
| std::string str(s.c_str(), s.size()); |
| std::stringstream buffer(str); |
| buffer.imbue(std::locale::classic()); |
| buffer >> result; |
| ASSERT(!buffer.fail()); |
| return result; |
| } |
| |
| long stol(String s) { |
| char* p; |
| SKSL_DEBUGCODE(errno = 0;) |
| long result = strtoul(s.c_str(), &p, 0); |
| ASSERT(*p == 0); |
| ASSERT(!errno); |
| return result; |
| } |
| |
| } // namespace |