1 // Copyright 2014 The PDFium Authors
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6
7 #ifndef CORE_FXCRT_FX_STRING_H_
8 #define CORE_FXCRT_FX_STRING_H_
9
10 #include <stdint.h>
11
12 #include <string>
13 #include <vector>
14
15 #include "core/fxcrt/bytestring.h"
16 #include "core/fxcrt/span.h"
17 #include "core/fxcrt/widestring.h"
18
FXBSTR_ID(uint8_t c1,uint8_t c2,uint8_t c3,uint8_t c4)19 constexpr uint32_t FXBSTR_ID(uint8_t c1, uint8_t c2, uint8_t c3, uint8_t c4) {
20 return static_cast<uint32_t>(c1) << 24 | static_cast<uint32_t>(c2) << 16 |
21 static_cast<uint32_t>(c3) << 8 | static_cast<uint32_t>(c4);
22 }
23
24 ByteString FX_UTF8Encode(WideStringView wsStr);
25 std::u16string FX_UTF16Encode(WideStringView wsStr);
26
27 float StringToFloat(ByteStringView str);
28 float StringToFloat(WideStringView wsStr);
29
30 double StringToDouble(ByteStringView str);
31 double StringToDouble(WideStringView wsStr);
32
33 namespace fxcrt {
34
35 template <typename StrType>
Split(const StrType & that,typename StrType::CharType ch)36 std::vector<StrType> Split(const StrType& that, typename StrType::CharType ch) {
37 std::vector<StrType> result;
38 StringViewTemplate<typename StrType::CharType> remaining(that.span());
39 while (true) {
40 std::optional<size_t> index = remaining.Find(ch);
41 if (!index.has_value())
42 break;
43 result.emplace_back(remaining.First(index.value()));
44 remaining = remaining.Last(remaining.GetLength() - index.value() - 1);
45 }
46 result.emplace_back(remaining);
47 return result;
48 }
49
50 extern template std::vector<ByteString> Split<ByteString>(
51 const ByteString& that,
52 ByteString::CharType ch);
53 extern template std::vector<WideString> Split<WideString>(
54 const WideString& that,
55 WideString::CharType ch);
56
57 } // namespace fxcrt
58
59 #endif // CORE_FXCRT_FX_STRING_H_
60