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1 // Copyright (C) 2011 Google Inc. | |
2 // | |
3 // Licensed under the Apache License, Version 2.0 (the "License"); | |
4 // you may not use this file except in compliance with the License. | |
5 // You may obtain a copy of the License at | |
6 // | |
7 // http://www.apache.org/licenses/LICENSE-2.0 | |
8 // | |
9 // Unless required by applicable law or agreed to in writing, software | |
10 // distributed under the License is distributed on an "AS IS" BASIS, | |
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
12 // See the License for the specific language governing permissions and | |
13 // limitations under the License. | |
14 | |
15 // Author: Philippe Liard | |
16 | |
17 #ifndef I18N_PHONENUMBERS_STRINGUTIL_H_ | |
18 #define I18N_PHONENUMBERS_STRINGUTIL_H_ | |
19 | |
20 #include <cstddef> | |
21 #include <string> | |
22 | |
23 #include "base/basictypes.h" | |
24 | |
25 namespace i18n { | |
26 namespace phonenumbers { | |
27 | |
28 using std::string; | |
29 | |
30 // Supports string("hello") + 10. | |
31 string operator+(const string& s, int n); | |
32 | |
33 // Converts integer to string. | |
34 string SimpleItoa(uint64 n); | |
35 string SimpleItoa(int n); | |
36 | |
37 // Replaces any occurrence of the character 'remove' (or the characters | |
38 // in 'remove') with the character 'replacewith'. | |
39 void StripString(string* s, const char* remove, char replacewith); | |
40 | |
41 // Returns true if 'in' starts with 'prefix' and writes 'in' minus 'prefix' into | |
42 // 'out'. | |
43 bool TryStripPrefixString(const string& in, const string& prefix, string* out); | |
44 | |
45 // Returns true if 's' ends with 'suffix'. | |
46 bool HasSuffixString(const string& s, const string& suffix); | |
47 | |
48 // Converts string to int32. | |
49 void safe_strto32(const string& s, int32 *n); | |
50 | |
51 // Converts string to uint64. | |
52 void safe_strtou64(const string& s, uint64 *n); | |
53 | |
54 // Remove all occurrences of a given set of characters from a string. | |
55 void strrmm(string* s, const string& chars); | |
56 | |
57 // Holds a reference to a std::string or C string. It can also be constructed | |
58 // from an integer which is converted to a string. | |
59 class StringHolder { | |
60 public: | |
61 // Don't make the constructors explicit to make the StrCat usage convenient. | |
62 StringHolder(const string& s); | |
63 StringHolder(const char* s); | |
64 StringHolder(uint64 n); | |
65 ~StringHolder(); | |
66 | |
67 const string* GetString() const { | |
68 return string_; | |
69 } | |
70 | |
71 const char* GetCString() const { | |
72 return cstring_; | |
73 } | |
74 | |
75 size_t Length() const { | |
76 return len_; | |
77 } | |
78 | |
79 private: | |
80 const string converted_string_; // Stores the string converted from integer. | |
81 const string* const string_; | |
82 const char* const cstring_; | |
83 const size_t len_; | |
84 }; | |
85 | |
86 string& operator+=(string& lhs, const StringHolder& rhs); | |
87 | |
88 // Efficient string concatenation. | |
89 | |
90 string StrCat(const StringHolder& s1, const StringHolder& s2); | |
91 | |
92 string StrCat(const StringHolder& s1, const StringHolder& s2, | |
93 const StringHolder& s3); | |
94 | |
95 string StrCat(const StringHolder& s1, const StringHolder& s2, | |
96 const StringHolder& s3, const StringHolder& s4); | |
97 | |
98 string StrCat(const StringHolder& s1, const StringHolder& s2, | |
99 const StringHolder& s3, const StringHolder& s4, | |
100 const StringHolder& s5); | |
101 | |
102 string StrCat(const StringHolder& s1, const StringHolder& s2, | |
103 const StringHolder& s3, const StringHolder& s4, | |
104 const StringHolder& s5, const StringHolder& s6); | |
105 | |
106 string StrCat(const StringHolder& s1, const StringHolder& s2, | |
107 const StringHolder& s3, const StringHolder& s4, | |
108 const StringHolder& s5, const StringHolder& s6, | |
109 const StringHolder& s7); | |
110 | |
111 string StrCat(const StringHolder& s1, const StringHolder& s2, | |
112 const StringHolder& s3, const StringHolder& s4, | |
113 const StringHolder& s5, const StringHolder& s6, | |
114 const StringHolder& s7, const StringHolder& s8, | |
115 const StringHolder& s9, const StringHolder& s10, | |
116 const StringHolder& s11); | |
117 | |
118 void StrAppend(string* dest, const StringHolder& s1); | |
119 | |
120 void StrAppend(string* dest, const StringHolder& s1, const StringHolder& s2); | |
121 | |
122 } // namespace phonenumbers | |
123 } // namespace i18n | |
124 | |
125 #endif // I18N_PHONENUMBERS_STRINGUTIL_H_ | |
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