@param advanceFromLastStart @param run @return Whether it read and appended at least 1 character.

It sets this.input to String which is a subsequence of previous this.input. @return Whether it read and appended at least 1 character.

@return mutable map

@param int maxSlice Number of version 'slices' to check, as they were separated in version string. 1 means checking the first (leftmost) slice only.

Get the value of this field. Used by Run#get(Field), which caches the values. Default implementation gets it from run.parsed() for this.name().

This may return StringBuilder, StringBuffer or String.

@overrides FilterReplace.pattern(App,Run)

@overrides Filter.process(App,Run,int)

@param pastMatcheable 0-based index of first character (if any) past matcheable range. If we are at the end of input, then it's equal to input.length(

Each subclass that wants to parse commandline parameters should use override this method. It will be called once on each instance, and that's how the

@return Replacement pattern that has back-references to groups captured by pattern returned from pattern(), e.g. "$1". It must also include the last

@return maximum number of bytes that can be used by each of input/output sequence buffer (each of those two can uses as much bytes, separately). If th