in static/api/python/3.2.x/lunr.js [3136:3190]
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
}
}
}