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gnosygnu
201
400_xowa/src/gplx/xowa/specials/nearby/Nearby_mgr.java
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201
400_xowa/src/gplx/xowa/specials/nearby/Nearby_mgr.java
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/*
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XOWA: the XOWA Offline Wiki Application
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Copyright (C) 2012 gnosygnu@gmail.com
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as
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published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package gplx.xowa.specials.nearby; import gplx.*; import gplx.xowa.*; import gplx.xowa.specials.*;
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import gplx.core.brys.fmtrs.*;
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import gplx.xowa.parsers.*; import gplx.xowa.parsers.lnkis.*;
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public class Nearby_mgr implements Xow_special_page {
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Xowe_wiki wiki; byte[] trg;
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private Hash_adp_bry excluded = Hash_adp_bry.ci_a7();
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private Hash_adp_bry visited = Hash_adp_bry.ci_a7();
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List_adp trail = List_adp_.New();
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List_adp results = List_adp_.New();
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int results_cur = 0;
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// int depth_max = 5;
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// int pages_count = 0;
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Bry_bfr tmp_bfr = Bry_bfr_.New();
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public int Results_max() {return results_max;} public Nearby_mgr Results_max_(int v) {results_max = v; return this;} private int results_max = 1;
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public Xow_special_meta Special__meta() {return Xow_special_meta_.Itm__nearby;}
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public void Special__gen(Xow_wiki wikii, Xoa_page pagei, Xoa_url url, Xoa_ttl ttl) {
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Xowe_wiki wiki = (Xowe_wiki)wikii; Xoae_page page = (Xoae_page)pagei;
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page.Db().Text().Text_bry_(Bld_html(wiki));
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page.Html_data().Html_restricted_n_(); // [[Special:]] pages allow all HTML
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// wiki.Parser_mgr().Parse(page, false); // do not clear else previous Search_text will be lost
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}
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byte[] Bld_html(Xowe_wiki wiki) {
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form_fmtr.Bld_bfr_many(tmp_bfr);
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List_adp list = Find_from_to(wiki, Bry_.new_a7("Earth"), Bry_.new_a7("Atom"), excluded);
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tmp_bfr.Add_str_a7("<table>");
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int len = list.Count();
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for (int i = 0; i < len; i++) {
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Nearby_rslt rslt = (Nearby_rslt)list.Get_at(i);
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tmp_bfr.Add_str_a7("<tr>");
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int cell_len = rslt.Len();
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for (int j = 0; j < cell_len; j++) {
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Xoa_ttl ttl = (Xoa_ttl)rslt.Get_at(j);
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tmp_bfr.Add_str_a7("<td>[[");
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tmp_bfr.Add(ttl.Page_db());
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tmp_bfr.Add_str_a7("]]</td>");
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}
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tmp_bfr.Add_str_a7("</tr>");
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}
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tmp_bfr.Add_str_a7("</table>");
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return tmp_bfr.To_bry_and_clear();
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}
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Bry_fmtr form_fmtr = Bry_fmtr.new_(String_.Concat_lines_nl
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( "<form id='xowa_nearby_form' action='/wiki/Special:XowaNearby'>"
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, "<table>"
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, " <tr><td>From:</td><td><input name='xowa_bgn' value='Earth' /></td></tr>"
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, " <tr><td>To: </td><td><input name='xowa_end' value='Atom' /></td></tr>"
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, " <tr><td>Max: </td><td><input name='xowa_max' value='1' /></td></tr>"
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, " <tr><td>Skip:</td><td><input name='xowa_skip' value='' /></td></tr>"
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, " <tr><td/><td align='right'><input type='submit' value='go' /></td></tr>"
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, "</table>"
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, "</form>"
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));
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Xoa_ttl trg_ttl;
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Ordered_hash src_pool = Ordered_hash_.New_bry();
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public List_adp Find_from_to(Xowe_wiki wiki, byte[] src_bry, byte[] trg_bry, Hash_adp_bry excluded) {
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this.wiki = wiki; this.excluded = excluded;
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Xoa_ttl src_ttl = Xoa_ttl.Parse(wiki, src_bry); if (src_ttl == null) return List_adp_.Noop;
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trg_ttl = Xoa_ttl.Parse(wiki, trg_bry); if (trg_ttl == null) return List_adp_.Noop;
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trg = trg_ttl.Page_db();
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trail.Clear();
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results.Clear();
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results_cur = 0;
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// pages_count = 0;
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visited.Clear();
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src_pool.Clear();
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src_pool.Add(src_ttl.Page_db(), new Nearby_itmx(trail, src_ttl));
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Examine_page(src_pool);
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return results;
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}
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private void Examine_page(Ordered_hash src_pool){
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int len = src_pool.Count();
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Ordered_hash next_pool = Ordered_hash_.New_bry();
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for (int i = 0; i < len; i++) {
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Nearby_itmx itmx = (Nearby_itmx)src_pool.Get_at(i);
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Xoa_ttl ttl = itmx.Ttl();
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byte[] ttl_bry = ttl.Page_db();
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if (excluded.Has(ttl_bry)) continue;
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if (visited.Has(ttl_bry)) continue;
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visited.Add_bry_bry(ttl_bry);
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Xoae_page page = wiki.Data_mgr().Load_page_by_ttl(ttl);
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if (page.Db().Page().Exists_n()) continue;
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wiki.Parser_mgr().Parse(page, true);
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Ordered_hash lnkis = Ordered_hash_.New_bry();
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Collect_lnkis(lnkis, page.Root());
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if (lnkis.Has(trg)) {
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++results_cur;
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results.Add(new Nearby_rslt(itmx.Trail(), trg_ttl));
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if (results_cur == results_max) return;
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}
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int lnkis_len = lnkis.Count();
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for (int j = 0; j < lnkis_len; j++) {
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Xoa_ttl lnki_ttl = (Xoa_ttl)lnkis.Get_at(j);
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if (next_pool.Has(lnki_ttl.Page_db())) continue;
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Nearby_itmx next_itmx = new Nearby_itmx(itmx.Trail(), lnki_ttl);
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next_pool.Add(lnki_ttl.Page_db(), next_itmx);
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}
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}
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if (next_pool.Count() > 0)
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Examine_page(next_pool);
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// ++pages_count;
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// wiki.Parser_mgr().Parse(page, true);
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// Ordered_hash lnkis = Ordered_hash_.New_bry();
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// int len = lnkis.Count();
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// for (int i = 0; i < len; i++) {
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// Xoa_ttl lnki_ttl = (Xoa_ttl)lnkis.Get_at(i);
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// if (!lnki_ttl.Ns().Id_main()) continue;
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// if (Bry_.Eq(lnki_ttl.Page_db(), trg)) continue; // skip trg page
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// trail.Add(lnki_ttl);
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// Examine_page(wiki, lnki_ttl, trail);
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// List_adp_.Del_at_last(trail);
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// if (results_cur == results_max) return;
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// }
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}
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// private void Examine_page(Xowe_wiki wiki, Xoa_ttl ttl, List_adp trail){
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// byte[] ttl_bry = ttl.Page_db();
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// if (excluded.Has(ttl_bry)) return;
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// if (visited.Has(ttl_bry)) return;
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// visited.Add_bry_bry(ttl_bry);
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// Xoae_page page = wiki.Data_mgr().Get_page(ttl, false);
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// if (page.Missing()) return;
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// ++pages_count;
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// wiki.Parser_mgr().Parse(page, true);
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// Ordered_hash lnkis = Ordered_hash_.New_bry();
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// Collect_lnkis(lnkis, page.Root());
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// if (lnkis.Has(trg)) {
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// ++results_cur;
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// results.Add(new Nearby_rslt(trail, trg_ttl));
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// if (results_cur == results_max) return;
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// }
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// int len = lnkis.Count();
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// for (int i = 0; i < len; i++) {
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// Xoa_ttl lnki_ttl = (Xoa_ttl)lnkis.Get_at(i);
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// if (!lnki_ttl.Ns().Id_main()) continue;
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// if (Bry_.Eq(lnki_ttl.Page_db(), trg)) continue; // skip trg page
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// trail.Add(lnki_ttl);
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// Examine_page(wiki, lnki_ttl, trail);
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// List_adp_.Del_at_last(trail);
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// if (results_cur == results_max) return;
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// }
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// }
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private void Collect_lnkis(Ordered_hash lnkis, Xop_tkn_itm tkn) {
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if (tkn.Tkn_tid() == Xop_tkn_itm_.Tid_lnki) {
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Xop_lnki_tkn lnki_tkn = (Xop_lnki_tkn)tkn;
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Xoa_ttl lnki_ttl = lnki_tkn.Ttl();
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if (!lnkis.Has(lnki_ttl.Page_db()))
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lnkis.Add(lnki_ttl.Page_db(), lnki_ttl);
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}
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else {
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int len = tkn.Subs_len();
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for (int i = 0; i < len; i++) {
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Xop_tkn_itm sub = tkn.Subs_get(i);
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Collect_lnkis(lnkis, sub);
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}
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}
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}
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public Xow_special_page Special__clone() {return this;}
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}
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class Nearby_rslt {
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public Nearby_rslt(List_adp trail, Xoa_ttl trg_ttl) {
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int len = trail.Count();
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for (int i = 0; i < len; i++) {
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Xoa_ttl ttl = (Xoa_ttl)trail.Get_at(i);
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list.Add(ttl);
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}
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list.Add(trg_ttl);
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}
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public int Len() {return list.Count();}
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public Xoa_ttl Get_at(int i) {return (Xoa_ttl)list.Get_at(i);}
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List_adp list = List_adp_.New();
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}
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class Nearby_itmx {
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public Nearby_itmx(List_adp v, Xoa_ttl ttl) {
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int len = v.Count();
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for (int i = 0; i < len; i++) {
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Xoa_ttl v_ttl = (Xoa_ttl)v.Get_at(i);
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trail.Add(v_ttl);
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}
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trail.Add(ttl);
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this.ttl = ttl;
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}
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public Xoa_ttl Ttl() {return ttl;} private Xoa_ttl ttl;
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public List_adp Trail() {return trail;} List_adp trail = List_adp_.New();
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}
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77
400_xowa/src/gplx/xowa/specials/nearby/Nearby_mgr_tst.java
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77
400_xowa/src/gplx/xowa/specials/nearby/Nearby_mgr_tst.java
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@@ -0,0 +1,77 @@
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/*
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XOWA: the XOWA Offline Wiki Application
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Copyright (C) 2012 gnosygnu@gmail.com
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as
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published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package gplx.xowa.specials.nearby; import gplx.*; import gplx.xowa.*; import gplx.xowa.specials.*;
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import org.junit.*;
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public class Nearby_mgr_tst {
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@Before public void init() {fxt.Clear();} Nearby_mgr_fxt fxt = new Nearby_mgr_fxt();
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@Test public void Basic() {
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fxt.Init_page("A", "[[B]]");
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fxt.Test_find("A", "B", "A|B");
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}
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@Test public void Shortest() {
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fxt.Init_page("A", "[[B]]");
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fxt.Init_page("B", "[[C]] [[D]]");
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fxt.Init_page("C", "[[D]]");
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fxt.Test_find("A", "D", "A|B|D");
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fxt.Init_results_max(2).Test_find("A", "D", "A|B|D", "A|B|C|D");
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}
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@Test public void Circular() {
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fxt.Init_page("A", "[[B]]");
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fxt.Init_page("B", "[[C]]");
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fxt.Init_page("C", "[[A]]");
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fxt.Test_find("A", "D", "");
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}
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@Test public void Page_doesnt_exist() {
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fxt.Init_page("A", "[[B]]");
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fxt.Test_find("A", "C", "");
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}
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}
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class Nearby_mgr_fxt {
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public Nearby_mgr_fxt Clear() {
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if (fxt == null) {
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fxt = new Xop_fxt();
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nearby_mgr = new Nearby_mgr();
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excluded = Hash_adp_bry.ci_a7();
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tmp_bfr = Bry_bfr_.New();
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}
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fxt.Reset();
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Io_mgr.Instance.InitEngine_mem();
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nearby_mgr.Results_max_(1);
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return this;
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} private Xop_fxt fxt; Nearby_mgr nearby_mgr; Hash_adp_bry excluded; Bry_bfr tmp_bfr;
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public void Init_page(String ttl, String text) {fxt.Init_page_create(ttl, text);}
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public Nearby_mgr_fxt Init_results_max(int v) {nearby_mgr.Results_max_(v); return this;}
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public void Test_find(String src, String trg, String... expd) {
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List_adp actl = nearby_mgr.Find_from_to(fxt.Wiki(), Bry_.new_a7(src), Bry_.new_a7(trg), excluded);
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Tfds.Eq_ary(String_.SplitLines_nl(Xto_str(actl)), expd);
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}
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String Xto_str(List_adp list) {
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int len = list.Count();
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for (int i = 0; i < len; i++) {
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Nearby_rslt rslt = (Nearby_rslt)list.Get_at(i);
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int ttls = rslt.Len();
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if (i != 0) tmp_bfr.Add_byte_nl();
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for (int j = 0; j < ttls; j++) {
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Xoa_ttl ttl = rslt.Get_at(j);
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if (j != 0) tmp_bfr.Add_byte(Byte_ascii.Pipe);
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tmp_bfr.Add(ttl.Page_db());
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}
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}
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return tmp_bfr.To_str_and_clear();
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}
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}
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