| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 | 1 1 121 15 391 2 389 64 64 64 64 64 64 64 64 7 3 3 3 3 1 1 2 3 3 3 3 4 26 2 2 2 270 270 270 270 270 20 2 2 2 2 2 2 2 104 104 57 57 57 47 8 8 3 3 3 3 3 1 1 1 1 5 8 8 39 13 13 26 26 26 5 5 5 5 26 3 3 3 3 3 3 104 45 45 13 32 28 4 45 104 45 45 45 4 45 2 2 2 2 | /*! * Copyright (C) 2017 Glayzzle (BSD3 License) * @authors https://github.com/glayzzle/php-parser/graphs/contributors * @url http://glayzzle.com */ var specialChar = { '\\r': "\r", '\\n': "\n", '\\t': "\t", '\\v': String.fromCharCode(11), '\\e': String.fromCharCode(27), '\\f': String.fromCharCode(12), "\\\\": "\\", '\\$': "$", '\\"': '"', '\\\'': "'" }; module.exports = { /** * Unescape special chars */ resolve_special_chars: function(text) { return text.replace( /\\[rntvef"'\\\$]/g, function(seq) { return specialChar[seq]; } ); }, /** * ```ebnf * scalar ::= T_MAGIC_CONST * | T_LNUMBER | T_DNUMBER * | T_START_HEREDOC T_ENCAPSED_AND_WHITESPACE? T_END_HEREDOC * | '"' encaps_list '"' * | T_START_HEREDOC encaps_list T_END_HEREDOC * | namespace_name (T_DOUBLE_COLON T_STRING)? * ``` */ read_scalar: function() { if (this.is('T_MAGIC_CONST')) { return this.get_magic_constant(); } else { switch(this.token) { // TEXTS case this.tok.T_CONSTANT_ENCAPSED_STRING: var value = this.node('string'); var text = this.text(); var isDoubleQuote = text[0] === '"'; text = text.substring(1, text.length - 1); this.next(); value = value(isDoubleQuote, this.resolve_special_chars(text)); Iif (this.token === this.tok.T_DOUBLE_COLON) { // https://github.com/php/php-src/blob/master/Zend/zend_language_parser.y#L1151 return this.read_static_getter(value); } else { // dirrect string return value; } case this.tok.T_START_HEREDOC: if (this.lexer.curCondition === 'ST_NOWDOC') { var node = this.node('nowdoc'); var value = this.next().text(); // strip the last line return char var lastCh = value[value.length-1]; if (lastCh === '\n') { Eif (value[value.length-2] === '\r') { // windows style value = value.substring(0, value.length - 2); } else { // linux style value = value.substring(0, value.length - 1); } } else Iif (lastCh === '\r') { // mac style value = value.substring(0, value.length - 1); } this.expect(this.tok.T_ENCAPSED_AND_WHITESPACE) && this.next(); node = node(value, this.lexer.heredoc_label); this.expect(this.tok.T_END_HEREDOC) && this.next(); return node; } else { return this.next().read_encapsed_string( this.tok.T_END_HEREDOC ); } case '"': return this.next().read_encapsed_string('"'); case 'b"': case 'B"': var node = this.node('cast'); var what = this.next().read_encapsed_string('"'); return node('binary', what); // NUMERIC case this.tok.T_LNUMBER: // long case this.tok.T_DNUMBER: // double var result = this.node('number'); var value = this.text(); this.next(); result = result(value); return result; // ARRAYS case this.tok.T_ARRAY: // array parser case '[': // short array format return this.read_array(); default: var err = this.error('SCALAR'); // graceful mode : ignore token & return error node this.next(); return err; } } } /** * Handles the dereferencing */ ,read_dereferencable: function(expr) { var result; var node = this.node('offsetlookup'); Eif (this.token === '[') { var offset = this.next().read_expr(); Eif (this.expect(']')) this.next(); result = node(expr, offset); } else if (this.token === this.tok.T_DOLLAR_OPEN_CURLY_BRACES) { var offset = this.read_encapsed_string_item(); result = node(expr, offset); } return result; } /** * Reads and extracts an encapsed item * ```ebnf * encapsed_string_item ::= T_ENCAPSED_AND_WHITESPACE * | T_DOLLAR_OPEN_CURLY_BRACES expr '}' * | T_DOLLAR_OPEN_CURLY_BRACES T_STRING_VARNAME '}' * | T_DOLLAR_OPEN_CURLY_BRACES T_STRING_VARNAME '[' expr ']' '}' * | T_CURLY_OPEN variable '}' * | variable * | variable '[' expr ']' * | variable T_OBJECT_OPERATOR T_STRING * ``` * @return {String|Variable|Expr|Lookup} * @see https://github.com/php/php-src/blob/master/Zend/zend_language_parser.y#L1219 */ ,read_encapsed_string_item: function() { var result = this.node(); // plain text // https://github.com/php/php-src/blob/master/Zend/zend_language_parser.y#L1222 if (this.token === this.tok.T_ENCAPSED_AND_WHITESPACE) { var text = this.text(); this.next(); result = result( 'string', false, this.resolve_special_chars(text) ); } // dynamic variable name // https://github.com/php/php-src/blob/master/Zend/zend_language_parser.y#L1239 else if (this.token === this.tok.T_DOLLAR_OPEN_CURLY_BRACES) { var name = null; if (this.next().token === this.tok.T_STRING_VARNAME) { var varName = this.text(); name = this.node('variable'); this.next(); name = name(varName, false); // check if lookup an offset // https://github.com/php/php-src/blob/master/Zend/zend_language_parser.y#L1243 if (this.token === '[') { var node = this.node('offsetlookup'); var offset = this.next().read_expr(); this.expect(']') && this.next(); name = node(name, offset); } } else { name = this.read_expr(); } this.expect('}') && this.next(); result = result('variable', name, false); } // expression // https://github.com/php/php-src/blob/master/Zend/zend_language_parser.y#L1246 else if (this.token === this.tok.T_CURLY_OPEN) { result = this.next().read_variable(false, false, false); this.expect('}') && this.next(); } // plain variable // https://github.com/php/php-src/blob/master/Zend/zend_language_parser.y#L1231 else Eif (this.token === this.tok.T_VARIABLE) { result = this.read_simple_variable(false); // https://github.com/php/php-src/blob/master/Zend/zend_language_parser.y#L1233 if (this.token === '[') { var node = this.node('offsetlookup'); var offset = this.next().read_encaps_var_offset(); this.expect(']') && this.next(); result = node(result, offset); } // https://github.com/php/php-src/blob/master/Zend/zend_language_parser.y#L1236 if (this.token === this.tok.T_OBJECT_OPERATOR) { var node = this.node('propertylookup'); var what = this.node('constref'); this.next().expect(this.tok.T_STRING); var name = this.text(); this.next(); result = node(result, what(name)); } // error / fallback } else { this.expect(this.tok.T_ENCAPSED_AND_WHITESPACE); var value = this.text(); this.next(); // consider it as string result = result('string', false, value); } return result; } /** * Reads an encapsed string */ ,read_encapsed_string: function(expect) { var node = this.node('encapsed'), value = [], type = null; if (expect === '`') { type = this.ast.encapsed.TYPE_SHELL; } else if (expect === '"') { type = this.ast.encapsed.TYPE_STRING; } else { type = this.ast.encapsed.TYPE_HEREDOC; } // reading encapsed parts while(this.token !== expect && this.token !== this.EOF) { value.push(this.read_encapsed_string_item()); } this.expect(expect) && this.next(); node = node(value, type); if (expect === this.tok.T_END_HEREDOC) { node.label = this.lexer.heredoc_label; } return node; } /** * Constant token */ ,get_magic_constant: function() { var result = this.node('magic'); var name = this.text(); this.next(); return result(name); } }; |