| liubin | 281ac46 | 2023-07-19 14:22:54 +0800 | [diff] [blame^] | 1 | /*==============================================================================
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| 2 |
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| 3 | ds_ASString.h
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| 4 |
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| 5 | GENERAL DESCRIPTION
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| 6 | A string class with utility functions for parsing AS.
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| 7 |
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| 8 | EXTERNALIZED FUNCTIONS
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| 9 |
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| 10 | INITIALIZATION AND SEQUENCING REQUIREMENTS
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| 11 |
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| 12 | Copyright (c) 2014 by Qualcomm Technologies Incorporated. All Rights Reserved.
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| 13 | ==============================================================================*/
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| 14 |
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| 15 | /*==============================================================================
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| 16 | EDIT HISTORY FOR MODULE
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| 17 |
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| 18 | This section contains comments describing changes made to the module.
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| 19 | Notice that changes are listed in reverse chronological order.
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| 20 |
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| 21 | when who what, where, why
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| 22 | -------- --- ----------------------------------------------------------
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| 23 | 04/21/14 ml Created file/Initial version.
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| 24 | ==============================================================================*/
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| 25 | #ifndef DS_AS_STRING_H
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| 26 | #define DS_AS_STRING_H
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| 27 |
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| 28 | //#include "comdef.h"
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| 29 | #include "mbtk_type.h"
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| 30 |
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| 31 | /*==============================================================================
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| 32 | CLASS ASString
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| 33 |
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| 34 | DESCRIPTION
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| 35 | A string class with utility functions for parsing AS.
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| 36 | ==============================================================================*/
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| 37 | class ASString
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| 38 | {
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| 39 | public:
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| 40 | /*===========================================================================
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| 41 | FUNCTION ASString CONSTRUCTOR
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| 42 |
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| 43 | DESCRIPTION
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| 44 | Creates a new ASString. Default constructor will create an empty string.
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| 45 | The other constructors will make a copy of the given string.
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| 46 |
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| 47 | DEPENDENCIES
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| 48 | None
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| 49 |
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| 50 | SIDE EFFECTS
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| 51 | None
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| 52 | ===========================================================================*/
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| 53 | ASString();
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| 54 | ASString(const char* src);
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| 55 | ASString(const char* src, uint32 len);
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| 56 |
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| 57 | // copy constructor
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| 58 | ASString(ASString& src);
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| 59 | ASString(const ASString& src);
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| 60 |
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| 61 | ~ASString();
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| 62 |
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| 63 |
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| 64 | ASString& operator=(const ASString& rhs);
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| 65 | ASString& operator=(const char* rhs);
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| 66 | char operator[](const int index) const;
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| 67 | char& operator[](const int index);
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| 68 |
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| 69 |
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| 70 | /*============================================================================
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| 71 | FUNCTION ASString::c_str
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| 72 |
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| 73 | DESCRIPTION
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| 74 | Returns the raw c-string
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| 75 |
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| 76 | PARAMETERS
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| 77 | None
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| 78 |
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| 79 | DEPENDENCIES
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| 80 | None
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| 81 |
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| 82 | SIDE EFFECTS
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| 83 | None
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| 84 | ============================================================================*/
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| 85 | const char* c_str() const;
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| 86 |
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| 87 | /*============================================================================
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| 88 | FUNCTION ASString::size
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| 89 | FUNCTION ASString::length
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| 90 |
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| 91 | DESCRIPTION
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| 92 | Returns the length of the string
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| 93 |
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| 94 | PARAMETERS
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| 95 | None
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| 96 |
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| 97 | DEPENDENCIES
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| 98 | None
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| 99 |
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| 100 | SIDE EFFECTS
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| 101 | None
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| 102 | ============================================================================*/
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| 103 | uint32 size() const;
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| 104 | uint32 length() const;
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| 105 |
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| 106 | /*============================================================================
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| 107 | FUNCTION ASString::empty
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| 108 |
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| 109 | DESCRIPTION
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| 110 | Returns true if the string is empty or NULL
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| 111 |
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| 112 | PARAMETERS
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| 113 | None
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| 114 |
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| 115 | DEPENDENCIES
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| 116 | None
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| 117 |
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| 118 | SIDE EFFECTS
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| 119 | None
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| 120 | ============================================================================*/
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| 121 | bool empty() const;
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| 122 |
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| 123 | /*============================================================================
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| 124 | FUNCTION ASString::remove_trailing_spaces
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| 125 |
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| 126 | DESCRIPTION
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| 127 | Removes all whiltespace, including tabs and newlines, at the end of the string.
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| 128 |
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| 129 | PARAMETERS
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| 130 | None
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| 131 |
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| 132 | DEPENDENCIES
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| 133 | None
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| 134 |
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| 135 | SIDE EFFECTS
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| 136 | None
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| 137 | ============================================================================*/
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| 138 | void remove_trailing_spaces();
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| 139 |
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| 140 | /*============================================================================
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| 141 | FUNCTION ASString::resolve_xml_escapes
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| 142 |
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| 143 | DESCRIPTION
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| 144 | Replaces XML escape strings with the corresponding character.
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| 145 |
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| 146 | PARAMETERS
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| 147 | None
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| 148 |
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| 149 | DEPENDENCIES
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| 150 | None
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| 151 |
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| 152 | SIDE EFFECTS
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| 153 | None
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| 154 | ============================================================================*/
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| 155 | bool resolve_xml_escapes();
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| 156 |
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| 157 | /*============================================================================
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| 158 | FUNCTION ASString::to_lower
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| 159 |
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| 160 | DESCRIPTION
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| 161 | Converts all characters in the string to lower case.
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| 162 |
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| 163 | PARAMETERS
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| 164 | None
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| 165 |
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| 166 | DEPENDENCIES
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| 167 | None
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| 168 |
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| 169 | SIDE EFFECTS
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| 170 | None
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| 171 | ============================================================================*/
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| 172 | void to_lower();
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| 173 |
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| 174 | /*============================================================================
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| 175 | FUNCTION ASString::limit_cmp
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| 176 |
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| 177 | DESCRIPTION
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| 178 | Partial string compare up to len. Returns true if same, else false.
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| 179 |
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| 180 | PARAMETERS
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| 181 | [In] cstr - The string to compare
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| 182 | [In] len - The number of characters to compare.
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| 183 |
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| 184 | DEPENDENCIES
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| 185 | None
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| 186 |
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| 187 | SIDE EFFECTS
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| 188 | None
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| 189 | ============================================================================*/
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| 190 | bool limit_cmp(const char* cstr, const uint32 len) const;
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| 191 |
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| 192 | /*============================================================================
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| 193 | FUNCTION ASString::append
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| 194 |
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| 195 | DESCRIPTION
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| 196 | Appends the given string to the string it holds.
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| 197 |
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| 198 | PARAMETERS
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| 199 | [In] append_str - The string to append
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| 200 | [In] len - The number of characters to append
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| 201 |
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| 202 | DEPENDENCIES
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| 203 | None
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| 204 |
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| 205 | SIDE EFFECTS
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| 206 | None
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| 207 | ============================================================================*/
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| 208 | void append(const char* append_str);
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| 209 | void append(const char* append_str, const uint32 len);
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| 210 | void append(const ASString& append_str);
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| 211 |
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| 212 | protected:
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| 213 | /*============================================================================
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| 214 | FUNCTION ASString::copy_string
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| 215 |
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| 216 | DESCRIPTION
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| 217 | Partial string compare up to len. Returns true if same, else false.
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| 218 |
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| 219 | PARAMETERS
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| 220 | [In] src - The string to copy
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| 221 | [In] len - The number of characters to copy
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| 222 |
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| 223 | DEPENDENCIES
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| 224 | None
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| 225 |
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| 226 | SIDE EFFECTS
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| 227 | None
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| 228 | ============================================================================*/
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| 229 | void copy_string(const char* src, uint32 len);
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| 230 |
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| 231 | char* str; // C-string object. Memory dynamically allocated as necessary
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| 232 | };
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| 233 |
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| 234 |
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| 235 |
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| 236 | /*============================================================================
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| 237 | FUNCTION operator==
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| 238 | FUNCTION operator!=
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| 239 | FUNCTION operator<
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| 240 | FUNCTION operator>
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| 241 |
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| 242 | DESCRIPTION
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| 243 | Compares the two strings and returns true/false based on the operator. The
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| 244 | comparison will be case insensitive.
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| 245 |
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| 246 | PARAMETERS
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| 247 | [In] lhs - The string to compare
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| 248 | [In] rhs - The other string to compare
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| 249 |
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| 250 | DEPENDENCIES
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| 251 | None
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| 252 |
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| 253 | SIDE EFFECTS
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| 254 | None
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| 255 | ============================================================================*/
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| 256 | bool operator== (const ASString& lhs, const ASString& rhs);
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| 257 | bool operator!= (const ASString& lhs, const ASString& rhs);
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| 258 |
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| 259 | bool operator== (const ASString& lhs, const char* rhs);
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| 260 | bool operator!= (const ASString& lhs, const char* rhs);
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| 261 |
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| 262 | bool operator< (const ASString& lhs, const ASString& rhs);
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| 263 | bool operator> (const ASString& lhs, const ASString& rhs);
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| 264 |
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| 265 | #endif /* DS_AS_STRING_H */
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