Advances the current character position without any error checking. Consuming beyond the end of the string can only happen if this parser contains a b

Returns the character index after expansion.

Returns the raw pattern without expanding keys; only useful for debugging. Does not pass through to {@link #format()} because doing so would drop all

check if the pattern has legal separators @return

cut the pattern with the separators and linked them with double link structure;

Replace text in {@code target} with this token's associated value.

Returns the text after replacing all keys with values. @throws IllegalArgumentException if any keys are not replaced.

Entry point into this API. @throws IllegalArgumentException if pattern contains any syntax errors.

Returns the number of characters after expansion.

init the innerColor @param _innerColor @return

Consumes and returns a token representing two consecutive curly brackets.

Returns the next character in the input pattern without advancing.

Consumes and returns a token for a sequence of text.

init the outerColor @param _outerColor @return

Returns the next token from the input pattern, or null when finished parsing.

set the separator of the target，called after from() method. @param _separator @return