1 // 2 // Copyright 2015 The ANGLE Project Authors. All rights reserved. 3 // Use of this source code is governed by a BSD-style license that can be 4 // found in the LICENSE file. 5 // 6 // string_utils: 7 // String helper functions. 8 // 9 10 #ifndef LIBANGLE_STRING_UTILS_H_ 11 #define LIBANGLE_STRING_UTILS_H_ 12 13 #include <string> 14 #include <vector> 15 16 #include "common/Optional.h" 17 18 namespace angle 19 { 20 21 extern const char kWhitespaceASCII[]; 22 23 enum WhitespaceHandling 24 { 25 KEEP_WHITESPACE, 26 TRIM_WHITESPACE, 27 }; 28 29 enum SplitResult 30 { 31 SPLIT_WANT_ALL, 32 SPLIT_WANT_NONEMPTY, 33 }; 34 35 std::vector<std::string> SplitString(const std::string &input, 36 const std::string &delimiters, 37 WhitespaceHandling whitespace, 38 SplitResult resultType); 39 40 void SplitStringAlongWhitespace(const std::string &input, std::vector<std::string> *tokensOut); 41 42 std::string TrimString(const std::string &input, const std::string &trimChars); 43 44 // Return the substring starting at offset and up to the first occurance of the |delimeter|. 45 std::string GetPrefix(const std::string &input, size_t offset, const char *delimiter); 46 std::string GetPrefix(const std::string &input, size_t offset, char delimiter); 47 48 bool HexStringToUInt(const std::string &input, unsigned int *uintOut); 49 50 bool ReadFileToString(const std::string &path, std::string *stringOut); 51 52 // Check if the string str begins with the given prefix. 53 // The comparison is case sensitive. 54 bool BeginsWith(const std::string &str, const std::string &prefix); 55 56 // Check if the string str begins with the given prefix. 57 // Prefix may not be NULL and needs to be NULL terminated. 58 // The comparison is case sensitive. 59 bool BeginsWith(const std::string &str, const char *prefix); 60 61 // Check if the string str begins with the given prefix. 62 // str and prefix may not be NULL and need to be NULL terminated. 63 // The comparison is case sensitive. 64 bool BeginsWith(const char *str, const char *prefix); 65 66 // Check if the string str begins with the first prefixLength characters of the given prefix. 67 // The length of the prefix string should be greater than or equal to prefixLength. 68 // The comparison is case sensitive. 69 bool BeginsWith(const std::string &str, const std::string &prefix, const size_t prefixLength); 70 71 // Check if the string str ends with the given suffix. 72 // The comparison is case sensitive. 73 bool EndsWith(const std::string &str, const std::string &suffix); 74 75 // Check if the string str ends with the given suffix. 76 // Suffix may not be NULL and needs to be NULL terminated. 77 // The comparison is case sensitive. 78 bool EndsWith(const std::string &str, const char *suffix); 79 80 // Check if the string str ends with the given suffix. 81 // str and suffix may not be NULL and need to be NULL terminated. 82 // The comparison is case sensitive. 83 bool EndsWith(const char *str, const char *suffix); 84 85 // Check if the given token string contains the given token. 86 // The tokens are separated by the given delimiter. 87 // The comparison is case sensitive. 88 bool ContainsToken(const std::string &tokenStr, char delimiter, const std::string &token); 89 90 // Convert to lower-case. 91 void ToLower(std::string *str); 92 93 // Convert to upper-case. 94 void ToUpper(std::string *str); 95 96 // Replaces the substring 'substring' in 'str' with 'replacement'. Returns true if successful. 97 bool ReplaceSubstring(std::string *str, 98 const std::string &substring, 99 const std::string &replacement); 100 101 // Replaces all substrings 'substring' in 'str' with 'replacement'. Returns count of replacements. 102 int ReplaceAllSubstrings(std::string *str, 103 const std::string &substring, 104 const std::string &replacement); 105 106 // Takes a snake_case string and turns it into camelCase. 107 std::string ToCamelCase(const std::string &str); 108 109 // Split up a string parsed from an environment variable. 110 std::vector<std::string> GetStringsFromEnvironmentVarOrAndroidProperty(const char *varName, 111 const char *propertyName, 112 const char *separator); 113 114 // Split up a string parsed from environment variable or via Android property, use cached result if 115 // available. 116 std::vector<std::string> GetCachedStringsFromEnvironmentVarOrAndroidProperty( 117 const char *varName, 118 const char *propertyName, 119 const char *separator); 120 121 // glob can have * as wildcard 122 bool NamesMatchWithWildcard(const char *glob, const char *name); 123 } // namespace angle 124 125 #endif // LIBANGLE_STRING_UTILS_H_ 126