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lex.ts
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lex.ts
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/**
* vim: set nomodifiable : DO NOT EDIT - edit "build.ts", run "make lexer" instead
*
* @generated
*/
import Token from './Token';
const REJECT = -1;
const START = 0;
export class Lexer {
input: string;
state: number;
tokenStart: number;
index: number;
/**
* @param {string} input
*/
constructor(input: string) {
this.input = input;
this.state = START;
this.tokenStart = 0;
this.index = 0;
}
/**
* @param {string} name
* @param {number} end
* @param {string} input
*/
emit(name: string, end: number, input: string) {
const token = new Token(name, this.tokenStart, end, input);
this.tokenStart = end;
this.index = end;
return token;
}
next() {
const input = this.input;
const length = input.length;
while (this.index <= length) {
const state = this.state;
let ch = this.index < length ? input.charCodeAt(this.index) : -1;
if (state === START) {
if (ch === 0x09 || ch === 0x20) {
this.state = 1;
} else if (ch === 0x0a || ch === 0x2c || ch === 0xfeff) {
this.state = 2;
} else if (ch === 0x0d) {
this.state = 3;
} else if (ch === 0x21) {
return this.emit('BANG', this.index + 1, input);
} else if (ch === 0x22) {
this.state = 5;
} else if (ch === 0x23) {
this.state = 6;
} else if (ch === 0x24) {
return this.emit('DOLLAR', this.index + 1, input);
} else if (ch === 0x26) {
return this.emit('AMPERSAND', this.index + 1, input);
} else if (ch === 0x28) {
return this.emit('OPENING_PAREN', this.index + 1, input);
} else if (ch === 0x29) {
return this.emit('CLOSING_PAREN', this.index + 1, input);
} else if (ch === 0x2d) {
this.state = 11;
} else if (ch === 0x2e) {
this.state = 12;
} else if (ch === 0x30) {
this.state = 13;
} else if (ch >= 0x31 && ch <= 0x39) {
this.state = 14;
} else if (ch === 0x3a) {
return this.emit('COLON', this.index + 1, input);
} else if (ch === 0x3d) {
return this.emit('EQUALS', this.index + 1, input);
} else if (ch === 0x40) {
return this.emit('AT', this.index + 1, input);
} else if (ch >= 0x41 && ch <= 0x5a || ch === 0x5f || ch >= 0x61 && ch <= 0x65 || ch >= 0x67 && ch <= 0x6e || ch >= 0x70 && ch <= 0x7a) {
this.state = 18;
} else if (ch === 0x5b) {
return this.emit('OPENING_BRACKET', this.index + 1, input);
} else if (ch === 0x5d) {
return this.emit('CLOSING_BRACKET', this.index + 1, input);
} else if (ch === 0x66) {
this.state = 21;
} else if (ch === 0x6f) {
this.state = 22;
} else if (ch === 0x7b) {
return this.emit('OPENING_BRACE', this.index + 1, input);
} else if (ch === 0x7c) {
return this.emit('BAR', this.index + 1, input);
} else if (ch === 0x7d) {
return this.emit('CLOSING_BRACE', this.index + 1, input);
} else {
this.state = REJECT;
}
} else if (state === 1) {
while (ch === 0x09 || ch === 0x20) {
this.index++;
ch = this.index < length ? input.charCodeAt(this.index) : -1;
}
// IGNORED token.
this.tokenStart = this.index;
this.state = START;
continue;
} else if (state === 2) {
// IGNORED token.
this.tokenStart = this.index;
this.state = START;
continue;
} else if (state === 3) {
if (ch === 0x0a) {
this.state = 2;
} else {
// IGNORED token.
this.tokenStart = this.index;
this.state = START;
continue;
}
} else if (state === 5) {
if (ch === 0x09 || ch >= 0x20 && ch <= 0x21 || ch >= 0x23 && ch <= 0x5b || ch >= 0x5d && ch <= 0xffff) {
this.state = 26;
} else if (ch === 0x22) {
this.state = 27;
} else if (ch === 0x5c) {
this.state = 28;
} else {
this.state = REJECT;
}
} else if (state === 6) {
while (ch === 0x09 || ch >= 0x20 && ch <= 0xffff) {
this.index++;
ch = this.index < length ? input.charCodeAt(this.index) : -1;
}
// IGNORED token.
this.tokenStart = this.index;
this.state = START;
continue;
} else if (state === 11) {
if (ch === 0x30) {
this.state = 13;
} else if (ch >= 0x31 && ch <= 0x39) {
this.state = 14;
} else {
this.state = REJECT;
}
} else if (state === 12) {
if (ch === 0x2e) {
this.state = 29;
} else {
this.state = REJECT;
}
} else if (state === 13) {
if (ch === 0x2e) {
this.state = 30;
} else if (ch === 0x45 || ch === 0x65) {
this.state = 31;
} else {
this.state = START;
return this.emit('NUMBER', this.index, input);
}
} else if (state === 14) {
while (ch >= 0x30 && ch <= 0x39) {
this.index++;
ch = this.index < length ? input.charCodeAt(this.index) : -1;
}
if (ch === 0x2e) {
this.state = 30;
} else if (ch === 0x45 || ch === 0x65) {
this.state = 31;
} else {
this.state = START;
return this.emit('NUMBER', this.index, input);
}
} else if (state === 18) {
while (ch >= 0x30 && ch <= 0x39 || ch >= 0x41 && ch <= 0x5a || ch === 0x5f || ch >= 0x61 && ch <= 0x7a) {
this.index++;
ch = this.index < length ? input.charCodeAt(this.index) : -1;
}
this.state = START;
return this.emit('NAME', this.index, input);
} else if (state === 21) {
if (ch >= 0x30 && ch <= 0x39 || ch >= 0x41 && ch <= 0x5a || ch === 0x5f || ch >= 0x61 && ch <= 0x71 || ch >= 0x73 && ch <= 0x7a) {
this.state = 18;
} else if (ch === 0x72) {
this.state = 32;
} else {
this.state = START;
return this.emit('NAME', this.index, input);
}
} else if (state === 22) {
if (ch >= 0x30 && ch <= 0x39 || ch >= 0x41 && ch <= 0x5a || ch === 0x5f || ch >= 0x61 && ch <= 0x6d || ch >= 0x6f && ch <= 0x7a) {
this.state = 18;
} else if (ch === 0x6e) {
this.state = 33;
} else {
this.state = START;
return this.emit('NAME', this.index, input);
}
} else if (state === 26) {
while (ch === 0x09 || ch >= 0x20 && ch <= 0x21 || ch >= 0x23 && ch <= 0x5b || ch >= 0x5d && ch <= 0xffff) {
this.index++;
ch = this.index < length ? input.charCodeAt(this.index) : -1;
}
if (ch === 0x5c) {
this.state = 28;
} else if (ch === 0x22) {
this.state = START;
return this.emit('STRING_VALUE', this.index + 1, input);
} else {
this.state = REJECT;
}
} else if (state === 27) {
if (ch === 0x22) {
this.state = 35;
} else {
this.state = START;
return this.emit('STRING_VALUE', this.index, input);
}
} else if (state === 28) {
if (ch === 0x22 || ch === 0x2f || ch === 0x62 || ch === 0x66 || ch === 0x6e || ch === 0x72 || ch === 0x74) {
this.state = 26;
} else if (ch === 0x5c) {
this.state = 36;
} else if (ch === 0x75) {
this.state = 37;
} else {
this.state = REJECT;
}
} else if (state === 29) {
if (ch === 0x2e) {
this.state = START;
return this.emit('ELLIPSIS', this.index + 1, input);
} else {
this.state = REJECT;
}
} else if (state === 30) {
if (ch >= 0x30 && ch <= 0x39) {
this.state = 39;
} else {
this.state = REJECT;
}
} else if (state === 31) {
if (ch === 0x2b || ch === 0x2d) {
this.state = 40;
} else if (ch >= 0x30 && ch <= 0x39) {
this.state = 41;
} else {
this.state = REJECT;
}
} else if (state === 32) {
if (ch >= 0x30 && ch <= 0x39 || ch >= 0x41 && ch <= 0x5a || ch === 0x5f || ch >= 0x62 && ch <= 0x7a) {
this.state = 18;
} else if (ch === 0x61) {
this.state = 42;
} else {
this.state = START;
return this.emit('NAME', this.index, input);
}
} else if (state === 33) {
if (ch >= 0x30 && ch <= 0x39 || ch >= 0x41 && ch <= 0x5a || ch === 0x5f || ch >= 0x61 && ch <= 0x7a) {
this.state = 18;
} else {
this.state = START;
return this.emit('ON', this.index, input);
}
} else if (state === 35) {
while (ch >= 0x09 && ch <= 0x0a || ch === 0x0d || ch >= 0x20 && ch <= 0x21 || ch >= 0x23 && ch <= 0x5b || ch >= 0x5d && ch <= 0xffff) {
this.index++;
ch = this.index < length ? input.charCodeAt(this.index) : -1;
}
if (ch === 0x22) {
this.state = 43;
} else if (ch === 0x5c) {
this.state = 44;
} else {
this.state = REJECT;
}
} else if (state === 36) {
while (ch === 0x5c) {
this.index++;
ch = this.index < length ? input.charCodeAt(this.index) : -1;
}
if (ch === 0x2f || ch === 0x62 || ch === 0x66 || ch === 0x6e || ch === 0x72 || ch === 0x74) {
this.state = 26;
} else if (ch === 0x75) {
this.state = 37;
} else {
this.state = REJECT;
}
} else if (state === 37) {
if (ch >= 0x30 && ch <= 0x39 || ch >= 0x41 && ch <= 0x46 || ch >= 0x61 && ch <= 0x66) {
this.state = 45;
} else {
this.state = REJECT;
}
} else if (state === 39) {
while (ch >= 0x30 && ch <= 0x39) {
this.index++;
ch = this.index < length ? input.charCodeAt(this.index) : -1;
}
if (ch === 0x45 || ch === 0x65) {
this.state = 31;
} else {
this.state = START;
return this.emit('NUMBER', this.index, input);
}
} else if (state === 40) {
if (ch >= 0x30 && ch <= 0x39) {
this.state = 41;
} else {
this.state = REJECT;
}
} else if (state === 41) {
while (ch >= 0x30 && ch <= 0x39) {
this.index++;
ch = this.index < length ? input.charCodeAt(this.index) : -1;
}
this.state = START;
return this.emit('NUMBER', this.index, input);
} else if (state === 42) {
if (ch >= 0x30 && ch <= 0x39 || ch >= 0x41 && ch <= 0x5a || ch === 0x5f || ch >= 0x61 && ch <= 0x66 || ch >= 0x68 && ch <= 0x7a) {
this.state = 18;
} else if (ch === 0x67) {
this.state = 46;
} else {
this.state = START;
return this.emit('NAME', this.index, input);
}
} else if (state === 43) {
if (ch >= 0x09 && ch <= 0x0a || ch === 0x0d || ch >= 0x20 && ch <= 0x21 || ch >= 0x23 && ch <= 0x5b || ch >= 0x5d && ch <= 0xffff) {
this.state = 35;
} else if (ch === 0x5c) {
this.state = 44;
} else if (ch === 0x22) {
this.state = 47;
} else {
this.state = REJECT;
}
} else if (state === 44) {
while (ch === 0x5c) {
this.index++;
ch = this.index < length ? input.charCodeAt(this.index) : -1;
}
if (ch >= 0x09 && ch <= 0x0a || ch === 0x0d || ch >= 0x20 && ch <= 0x21 || ch >= 0x23 && ch <= 0x5b || ch >= 0x5d && ch <= 0xffff) {
this.state = 35;
} else if (ch === 0x22) {
this.state = 48;
} else {
this.state = REJECT;
}
} else if (state === 45) {
if (ch >= 0x30 && ch <= 0x39 || ch >= 0x41 && ch <= 0x46 || ch >= 0x61 && ch <= 0x66) {
this.state = 49;
} else {
this.state = REJECT;
}
} else if (state === 46) {
if (ch >= 0x30 && ch <= 0x39 || ch >= 0x41 && ch <= 0x5a || ch === 0x5f || ch >= 0x61 && ch <= 0x6c || ch >= 0x6e && ch <= 0x7a) {
this.state = 18;
} else if (ch === 0x6d) {
this.state = 50;
} else {
this.state = START;
return this.emit('NAME', this.index, input);
}
} else if (state === 47) {
if (ch >= 0x09 && ch <= 0x0a || ch === 0x0d || ch >= 0x20 && ch <= 0x21 || ch >= 0x23 && ch <= 0x5b || ch >= 0x5d && ch <= 0xffff) {
this.state = 35;
} else if (ch === 0x5c) {
this.state = 44;
} else if (ch === 0x22) {
this.state = START;
return this.emit('BLOCK_STRING_VALUE', this.index + 1, input);
} else {
this.state = REJECT;
}
} else if (state === 48) {
if (ch >= 0x09 && ch <= 0x0a || ch === 0x0d || ch >= 0x20 && ch <= 0x21 || ch >= 0x23 && ch <= 0x5b || ch >= 0x5d && ch <= 0xffff) {
this.state = 35;
} else if (ch === 0x5c) {
this.state = 44;
} else if (ch === 0x22) {
this.state = 52;
} else {
this.state = REJECT;
}
} else if (state === 49) {
if (ch >= 0x30 && ch <= 0x39 || ch >= 0x41 && ch <= 0x46 || ch >= 0x61 && ch <= 0x66) {
this.state = 53;
} else {
this.state = REJECT;
}
} else if (state === 50) {
if (ch >= 0x30 && ch <= 0x39 || ch >= 0x41 && ch <= 0x5a || ch === 0x5f || ch >= 0x61 && ch <= 0x64 || ch >= 0x66 && ch <= 0x7a) {
this.state = 18;
} else if (ch === 0x65) {
this.state = 54;
} else {
this.state = START;
return this.emit('NAME', this.index, input);
}
} else if (state === 52) {
if (ch === 0x0a || ch === 0x0d || ch >= 0x20 && ch <= 0x5b || ch >= 0x5d && ch <= 0xffff) {
this.state = 35;
} else if (ch === 0x5c) {
this.state = 44;
} else {
this.state = REJECT;
}
} else if (state === 53) {
if (ch >= 0x30 && ch <= 0x39 || ch >= 0x41 && ch <= 0x46 || ch >= 0x61 && ch <= 0x66) {
this.state = 26;
} else {
this.state = REJECT;
}
} else if (state === 54) {
if (ch >= 0x30 && ch <= 0x39 || ch >= 0x41 && ch <= 0x5a || ch === 0x5f || ch >= 0x61 && ch <= 0x6d || ch >= 0x6f && ch <= 0x7a) {
this.state = 18;
} else if (ch === 0x6e) {
this.state = 55;
} else {
this.state = START;
return this.emit('NAME', this.index, input);
}
} else if (state === 55) {
if (ch >= 0x30 && ch <= 0x39 || ch >= 0x41 && ch <= 0x5a || ch === 0x5f || ch >= 0x61 && ch <= 0x73 || ch >= 0x75 && ch <= 0x7a) {
this.state = 18;
} else if (ch === 0x74) {
this.state = 56;
} else {
this.state = START;
return this.emit('NAME', this.index, input);
}
} else if (state === 56) {
if (ch >= 0x30 && ch <= 0x39 || ch >= 0x41 && ch <= 0x5a || ch === 0x5f || ch >= 0x61 && ch <= 0x7a) {
this.state = 18;
} else {
this.state = START;
return this.emit('FRAGMENT', this.index, input);
}
} else if (state === REJECT) {
throw new Error('Failed to recognize token');
} else {
throw new Error('Unexpected state');
}
this.index++;
}
return null;
}
}
/**
* @param {string} input
* @returns {Generator<Token, void, unknown>}
*/
export default function *lex(input: string) {
const lexer = new Lexer(input);
while (true) {
const token = lexer.next();
if (token === null) {
return;
} else {
yield token;
}
}
}