Xol_num_mgr__commafy_5.java

/*
XOWA: the XOWA Offline Wiki Application
Copyright (C) 2012-2017 gnosygnu@gmail.com

XOWA is licensed under the terms of the General Public License (GPL) Version 3,
or alternatively under the terms of the Apache License Version 2.0.

You may use XOWA according to either of these licenses as is most appropriate
for your project on a case-by-case basis.

The terms of each license can be found in the source code repository:

GPLv3 License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-GPLv3.txt
Apache License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-APACHE2.txt
*/
package gplx.xowa.langs.numbers; import gplx.*; import gplx.xowa.*; import gplx.xowa.langs.*;
class Xol_num_mgr__commafy_5 extends Xol_num_mgr { 	@Override public byte[] Commafy(byte[] num) {
		if (Bry_.Len_eq_0(num)) return num;	// bounds check
		int num_len = num.length;
		int num_bgn = 0;
		byte b = num[num_bgn];
		if (b == Byte_ascii.Dash) {
			if (num_len == 1) return num;	// bounds check
			b = num[++num_bgn];				// skip negative sign
		}
		if (Byte_ascii.Is_num(b)) {			// check for preg_match( '/^-?\d{1,4}(\.\d+)?$/', $_ )
			int num_end = Bry_find_.Find_fwd_while_num(num, num_bgn, num_len);
			if (num_end - num_bgn < 5) {	// 1-4 digits
				if (num_end == num_len) return num; // no decimal; exit
				b = num[num_end];
				if (	b == Byte_ascii.Dot	
					&&	num_end != num_len - 1) {	// if dot at end, then no match on above regx; fall-thru to below
					num_end = Bry_find_.Find_fwd_while_num(num, num_end + 1, num_len);
					if (num_end == num_len) return num;	// only numbers after dot; matches regx;
				}
			}
		}
		return this.Num_grp_fmtr().Fmt_regx(tmp_bfr, num);	// otherwise do default grouping; '/(\d{3})(?=\d)(?!\d*\.)/', '$1,'
	}
}
class Xol_num_mgr__noop extends Xol_num_mgr { 	@Override public byte[] Commafy(byte[] num) {return num;}
}