antlr-ng/dist/src/tree/TreePatternLexer.js

Next generation ANTLR Tool

var __defProp = Object.defineProperty;
var __name = (target, value) => __defProp(target, "name", { value, configurable: true });
class TreePatternLexer {
  static {
    __name(this, "TreePatternLexer");
  }
  static EOF = -1;
  static BEGIN = 1;
  static END = 2;
  static ID = 3;
  static ARG = 4;
  static PERCENT = 5;
  static COLON = 6;
  static DOT = 7;
  /** Set when token type is ID or ARG. */
  stringValue = "";
  /** Index into input string */
  currentPosition = -1;
  /** Current char */
  c;
  /** The input pattern as a sequence of code points. */
  input;
  constructor(pattern) {
    this.input = new Uint16Array(pattern.length);
    for (let i = 0; i < pattern.length; ++i) {
      this.input[i] = pattern.charCodeAt(i);
    }
    this.consume();
  }
  nextToken() {
    this.stringValue = "";
    while (this.currentPosition < this.input.length) {
      if (this.c === 32 || this.c === 13 || this.c === 10 || this.c === 9) {
        this.consume();
        continue;
      }
      if (this.c >= 97 && this.c <= 122 || this.c >= 65 && this.c <= 90 || this.c === 95) {
        this.stringValue += String.fromCodePoint(this.c);
        this.consume();
        while (this.c >= 97 && this.c <= 122 || this.c >= 65 && this.c <= 90 || this.c >= 48 && this.c <= 57 || this.c === 95) {
          this.stringValue += String.fromCodePoint(this.c);
          this.consume();
        }
        return TreePatternLexer.ID;
      }
      if (this.c === 40) {
        this.consume();
        return TreePatternLexer.BEGIN;
      }
      if (this.c === 41) {
        this.consume();
        return TreePatternLexer.END;
      }
      if (this.c === 37) {
        this.consume();
        return TreePatternLexer.PERCENT;
      }
      if (this.c === 58) {
        this.consume();
        return TreePatternLexer.COLON;
      }
      if (this.c === 46) {
        this.consume();
        return TreePatternLexer.DOT;
      }
      if (this.c === 91) {
        this.consume();
        while (this.c !== 93) {
          if (this.c === 92) {
            this.consume();
            this.stringValue += "\\";
            this.stringValue += String.fromCodePoint(this.c);
          } else {
            this.stringValue += String.fromCodePoint(this.c);
          }
          this.consume();
        }
        this.consume();
        return TreePatternLexer.ARG;
      }
      this.consume();
      return TreePatternLexer.EOF;
    }
    return TreePatternLexer.EOF;
  }
  consume() {
    ++this.currentPosition;
    if (this.currentPosition >= this.input.length) {
      this.c = TreePatternLexer.EOF;
    } else {
      this.c = this.input[this.currentPosition];
    }
  }
}
export {
  TreePatternLexer
};