lunr.QueryLexer.lexText = function()

in assets/js/lunr/lunr.js [3145:3199]

• 40 lines of code
• 14 McCabe index (conditional complexity)

lunr.QueryLexer.lexText = function (lexer) {
  while (true) {
    var char = lexer.next()

    if (char == lunr.QueryLexer.EOS) {
      return lunr.QueryLexer.lexEOS
    }

    // Escape character is '\'
    if (char.charCodeAt(0) == 92) {
      lexer.escapeCharacter()
      continue
    }

    if (char == ":") {
      return lunr.QueryLexer.lexField
    }

    if (char == "~") {
      lexer.backup()
      if (lexer.width() > 0) {
        lexer.emit(lunr.QueryLexer.TERM)
      }
      return lunr.QueryLexer.lexEditDistance
    }

    if (char == "^") {
      lexer.backup()
      if (lexer.width() > 0) {
        lexer.emit(lunr.QueryLexer.TERM)
      }
      return lunr.QueryLexer.lexBoost
    }

    // "+" indicates term presence is required
    // checking for length to ensure that only
    // leading "+" are considered
    if (char == "+" && lexer.width() === 1) {
      lexer.emit(lunr.QueryLexer.PRESENCE)
      return lunr.QueryLexer.lexText
    }

    // "-" indicates term presence is prohibited
    // checking for length to ensure that only
    // leading "-" are considered
    if (char == "-" && lexer.width() === 1) {
      lexer.emit(lunr.QueryLexer.PRESENCE)
      return lunr.QueryLexer.lexText
    }

    if (char.match(lunr.QueryLexer.termSeparator)) {
      return lunr.QueryLexer.lexTerm
    }
  }
}