gnosygnu_xowa/400_xowa/src/gplx/langs/jsons/Json_doc.java

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

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
package gplx.langs.jsons; import gplx.*; import gplx.langs.*;
import gplx.core.primitives.*;
public class Json_doc {
	private final    byte[][] tmp_qry_bry = new byte[1][];
	public void Ctor(byte[] src, Json_grp new_root) {
		this.src = src;
		this.root_grp = new_root;
		switch (root_grp.Tid()) {
			case Json_itm_.Tid__nde:	this.root_ary = null; this.root_nde = (Json_nde)root_grp; break;
			case Json_itm_.Tid__ary:	this.root_nde = null; this.root_ary = (Json_ary)root_grp; break;
			default:					throw Err_.new_unhandled(root_grp.Tid());
		}
	}
	public byte[] Src() {return src;} private byte[] src;
	public Json_grp Root_grp() {return root_grp;} private Json_grp root_grp;
	public Json_nde Root_nde() {return root_nde;} private Json_nde root_nde;
	public Json_ary Root_ary() {return root_ary;} private Json_ary root_ary;
	public Bry_bfr Bfr() {return bfr;} private final    Bry_bfr bfr = Bry_bfr_.New();
	public Gfo_number_parser Utl_num_parser() {return utl_num_parser;} private final    Gfo_number_parser utl_num_parser = new Gfo_number_parser();
	public byte[] Tmp_u8_bry() {return tmp_u8_bry;} private final    byte[] tmp_u8_bry = new byte[6];	// tmp bry[] for decoding sequences like \u0008
	public byte[] Get_val_as_bry_or(byte[]   qry_bry, byte[] or) {tmp_qry_bry[0] = qry_bry; return Get_val_as_bry_or(tmp_qry_bry, or);}
	public byte[] Get_val_as_bry_or(byte[][] qry_bry, byte[] or) {
		Json_itm nde = Find_nde(root_nde, qry_bry, qry_bry.length - 1, 0);
		return nde == null || nde.Tid() != Json_itm_.Tid__str ? or : nde.Data_bry();
	}
	public String Get_val_as_str_or(byte[]   qry_bry, String or) {tmp_qry_bry[0] = qry_bry; return Get_val_as_str_or(tmp_qry_bry, or);}
	public String Get_val_as_str_or(byte[][] qry_bry, String or) {
		Json_itm nde = Find_nde(root_nde, qry_bry, qry_bry.length - 1, 0);
		return nde == null || nde.Tid() != Json_itm_.Tid__str ? or : (String)nde.Data();
	}
	public Json_grp Get_grp(byte[] qry_bry) {
		tmp_qry_bry[0] = qry_bry;
		Json_itm rv = Find_nde(root_nde, tmp_qry_bry, 0, 0); if (rv == null) return null;
		return (Json_grp)rv;
	}
	public Json_grp Get_grp_many(String... qry_ary) {return Get_grp_many(Bry_.Ary(qry_ary));}
	public Json_grp Get_grp_many(byte[]... qry_bry) {
		Json_itm rv = Find_nde(root_nde, qry_bry, qry_bry.length - 1, 0); if (rv == null) return null;
		return (Json_grp)rv;
	}
	public Json_itm Find_nde(byte[] key) {
		tmp_qry_bry[0] = key;
		return Find_nde(root_nde, tmp_qry_bry, 0, 0);
	}
	private Json_itm Find_nde(Json_nde owner, byte[][] paths, int paths_last, int paths_idx) {
		byte[] path = paths[paths_idx];
		int subs_len = owner.Len();
		for (int i = 0; i < subs_len; i++) {
			Json_kv itm = Json_kv.cast(owner.Get_at(i)); if (itm == null) continue;	// ignore simple props, arrays, ndes
			if (!itm.Key_eq(path)) continue;
			if (paths_idx == paths_last) return itm.Val();
			Json_nde sub_nde = Json_nde.cast(itm.Val()); if (sub_nde == null) return null;	// match, but has not a nde; exit
			return Find_nde(sub_nde, paths, paths_last, paths_idx + 1);
		}
		return null;
	}
	public static String Make_str_by_apos(String... ary) {return String_.Replace(String_.Concat_lines_nl_skip_last(ary), "'", "\"");}
	public static String[] Make_str_ary_by_apos(String... ary) {
		int len = ary.length;
		for (int i = 0; i < len; ++i) {
			String itm = ary[i];
			if (String_.Has(itm, "'"))
				ary[i] = String_.Replace(itm, "'", "\"");
		}
		return ary;
	}
}