1 // Copyright 2022 The Chromium 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 #ifndef NET_CERT_PKI_STRING_UTIL_H_ 6 #define NET_CERT_PKI_STRING_UTIL_H_ 7 8 #include "net/base/net_export.h" 9 10 #include <stdint.h> 11 12 #include <string_view> 13 #include <vector> 14 15 namespace net::string_util { 16 17 // Returns true if the characters in |str| are all ASCII, false otherwise. 18 NET_EXPORT_PRIVATE bool IsAscii(std::string_view str); 19 20 // Compares |str1| and |str2| ASCII case insensitively (independent of locale). 21 // Returns true if |str1| and |str2| match. 22 NET_EXPORT_PRIVATE bool IsEqualNoCase(std::string_view str1, 23 std::string_view str2); 24 25 // Compares |str1| and |prefix| ASCII case insensitively (independent of 26 // locale). Returns true if |str1| starts with |prefix|. 27 NET_EXPORT_PRIVATE bool StartsWithNoCase(std::string_view str, 28 std::string_view prefix); 29 30 // Compares |str1| and |suffix| ASCII case insensitively (independent of 31 // locale). Returns true if |str1| starts with |suffix|. 32 NET_EXPORT_PRIVATE bool EndsWithNoCase(std::string_view str, 33 std::string_view suffix); 34 35 // Finds and replaces all occurrences of |find| of non zero length with 36 // |replace| in |str|, returning the result. 37 NET_EXPORT_PRIVATE std::string FindAndReplace(std::string_view str, 38 std::string_view find, 39 std::string_view replace); 40 41 // TODO(bbe) transition below to c++20 42 // Compares |str1| and |prefix|. Returns true if |str1| starts with |prefix|. 43 NET_EXPORT_PRIVATE bool StartsWith(std::string_view str, 44 std::string_view prefix); 45 46 // TODO(bbe) transition below to c++20 47 // Compares |str1| and |suffix|. Returns true if |str1| ends with |suffix|. 48 NET_EXPORT_PRIVATE bool EndsWith(std::string_view str, std::string_view suffix); 49 50 // Returns a hexadecimal string encoding |data| of length |length|. 51 NET_EXPORT_PRIVATE std::string HexEncode(const uint8_t* data, size_t length); 52 53 // Returns a decimal string representation of |i|. 54 NET_EXPORT_PRIVATE std::string NumberToDecimalString(int i); 55 56 // Splits |str| on |split_char| returning the list of resulting strings. 57 NET_EXPORT_PRIVATE std::vector<std::string_view> SplitString( 58 std::string_view str, 59 char split_char); 60 61 } // namespace net::string_util 62 63 #endif // NET_CERT_PKI_STRING_UTIL_H_ 64