Press n or j to go to the next uncovered block, b, p or k for the previous block.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 | 3x 3x 3x 3x 5926x 5926x 463x 463x 3x 1610x 3x 1x 1x 1x 3x 552x 552x 1476x 1476x 1472x 552x 3x 292x 292x 292x 3x 2457x 3x 1882x 1043x 255x 1627x 3x 3x 1527x 1182x 1x 3x 1526x 338x 3x 292x 3x 1198x 1185x 1410x 1410x 207x 207x 20x 20x 1183x 1183x 3x 1514x 1514x 316x 1198x 1198x 5926x 5926x 3x 292x 292x 3x 552x 552x 552x 1819x 1819x 1819x 209x 209x 1610x 1282x 15x 15x 1267x 1267x 1267x 328x 328x 552x 3x 13x 13x 13x 142x 142x 142x 6x 6x 136x 13x 13x 13x 123x 123x 13x 13x 3x 1527x 1527x 1527x 1527x 1526x 1526x 217x 3x 1198x 1198x 2x 1196x 13x 1183x 18x 18x 1165x 18x 18x 1147x 77x 77x 1070x 31x 31x 1039x 211x 211x 828x 41x 41x 13x 13x 28x 787x 10x 10x 777x 27x 27x 750x 50x 50x 700x 50x 50x 650x 74x 74x 576x 24x 24x 552x 3x | import { Token, nameTok, colonTok, dotTok, starTok, bangTok, bracketLTok, bracketRTok, bracketDRTok, expandTok, parenLTok, parenRTok, commaTok, eofTok, ignoreTok, braceLTok, braceRTok, bracketDLTok, } from './tokens' import { bracketDContext, Context } from './contexts' const nonASCIIwhitespace = /[\u1680\u180e\u2000-\u200a\u202f\u205f\u3000\ufeff]/ const fullCharCodeAtPos = (input: string, pos: number) => { const code = input.charCodeAt(pos) if (code <= 0xd7ff || code >= 0xe000) return code const next = input.charCodeAt(pos + 1) return (code << 10) + next - 0x35fdc00 } const isRewordCode = (code: number) => code === 42 || code === 46 || code === 33 || code === 91 || code === 93 || code === 40 || code === 41 || code === 44 || code === 58 || code === 126 || code === 123 || code === 125 const getError = (message?: string, props?: any) => { const err = new Error(message) Object.assign(err, props) return err } const slice = (string: string, start: number, end: number) => { let str = '' for (let i = start; i < end; i++) { let ch = string.charAt(i) if (ch !== '\\') { str += ch } } return str } export class Tokenizer { public input: string public state: { context: Context[] type: Token pos: number value?: any } public type_: Token constructor(input: string) { this.input = input this.state = { context: [], type: null, pos: 0, } this.type_ = null } curContext() { return this.state.context[this.state.context.length - 1] } includesContext(context: Context) { for (let len = this.state.context.length - 1; len >= 0; len--) { if (this.state.context[len] === context) { return true } } return false } unexpect(type?: Token) { type = type || this.state.type return getError( `Unexpect token "${type.flag}" in ${this.state.pos} char.`, { pos: this.state.pos, } ) } expectNext(type?: Token, next?: Token) { if (type && type.expectNext) { if (next && !type.expectNext.call(this, next)) { throw getError( `Unexpect token "${next.flag}" token should not be behind "${type.flag}" token.(${this.state.pos}th char)`, { pos: this.state.pos, } ) } } } expectPrev(type?: Token, prev?: Token) { if (type && type.expectPrev) { Iif (prev && !type.expectPrev.call(this, prev)) { throw getError( `Unexpect token "${type.flag}" should not be behind "${prev.flag}"(${this.state.pos}th char).`, { pos: this.state.pos, } ) } } } match(type?: Token) { return this.state.type === type } skipSpace() { if (this.curContext() === bracketDContext) return loop: while (this.state.pos < this.input.length) { const ch = this.input.charCodeAt(this.state.pos) switch (ch) { case 32: case 160: ++this.state.pos break case 13: if (this.input.charCodeAt(this.state.pos + 1) === 10) { ++this.state.pos } case 10: case 8232: case 8233: ++this.state.pos break default: Iif ( (ch > 8 && ch < 14) || (ch >= 5760 && nonASCIIwhitespace.test(String.fromCharCode(ch))) ) { ++this.state.pos } else { break loop } } } } next() { this.type_ = this.state.type if (this.input.length <= this.state.pos) { return this.finishToken(eofTok) } this.skipSpace() this.readToken( this.getCode(), this.state.pos > 0 ? this.getCode(this.state.pos - 1) : -Infinity ) } getCode(pos = this.state.pos) { return fullCharCodeAtPos(this.input, pos) } eat(type) { Iif (this.match(type)) { this.next() return true } else { return false } } readKeyWord() { let startPos = this.state.pos, string = '' while (true) { let code = this.getCode() let prevCode = this.getCode(this.state.pos - 1) if (this.input.length === this.state.pos) { string = slice(this.input, startPos, this.state.pos + 1) break } if (!isRewordCode(code) || prevCode === 92) { if ( code === 32 || code === 160 || code === 10 || code === 8232 || code === 8233 ) { string = slice(this.input, startPos, this.state.pos) break } Iif (code === 13 && this.input.charCodeAt(this.state.pos + 1) === 10) { string = slice(this.input, startPos, this.state.pos) break } Iif ( (code > 8 && code < 14) || (code >= 5760 && nonASCIIwhitespace.test(String.fromCharCode(code))) ) { string = slice(this.input, startPos, this.state.pos) break } this.state.pos++ } else { string = slice(this.input, startPos, this.state.pos) break } } this.finishToken(nameTok, string) } readIngoreString() { let startPos = this.state.pos, prevCode, string = '' while (true) { let code = this.getCode() Iif (this.state.pos >= this.input.length) break if ((code === 91 || code === 93) && prevCode === 92) { this.state.pos++ prevCode = '' } else if (code == 93 && prevCode === 93) { string = this.input .slice(startPos, this.state.pos - 1) .replace(/\\([\[\]])/g, '$1') this.state.pos++ break } else { this.state.pos++ prevCode = code } } this.finishToken(ignoreTok, string) this.finishToken(bracketDRTok) } finishToken(type: Token, value?: any) { const preType = this.state.type this.state.type = type if (value !== undefined) this.state.value = value this.expectNext(preType, type) this.expectPrev(type, preType) if (type.updateContext) { type.updateContext.call(this, preType) } } readToken(code: number, prevCode: number) { Iif (prevCode === 92) { return this.readKeyWord() } if (this.input.length <= this.state.pos) { this.finishToken(eofTok) } else if (this.curContext() === bracketDContext) { this.readIngoreString() } else if (code === 123) { this.state.pos++ this.finishToken(braceLTok) } else if (code === 125) { this.state.pos++ this.finishToken(braceRTok) } else if (code === 42) { this.state.pos++ this.finishToken(starTok) } else if (code === 33) { this.state.pos++ this.finishToken(bangTok) } else if (code === 46) { this.state.pos++ this.finishToken(dotTok) } else if (code === 91) { this.state.pos++ if (this.getCode() === 91) { this.state.pos++ return this.finishToken(bracketDLTok) } this.finishToken(bracketLTok) } else if (code === 126) { this.state.pos++ this.finishToken(expandTok) } else if (code === 93) { this.state.pos++ this.finishToken(bracketRTok) } else if (code === 40) { this.state.pos++ this.finishToken(parenLTok) } else if (code === 41) { this.state.pos++ this.finishToken(parenRTok) } else if (code === 44) { this.state.pos++ this.finishToken(commaTok) } else if (code === 58) { this.state.pos++ this.finishToken(colonTok) } else { this.readKeyWord() } } } |