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102 lines
4.3 KiB
102 lines
4.3 KiB
/*
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XOWA: the XOWA Offline Wiki Application
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Copyright (C) 2012-2017 gnosygnu@gmail.com
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XOWA is licensed under the terms of the General Public License (GPL) Version 3,
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or alternatively under the terms of the Apache License Version 2.0.
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You may use XOWA according to either of these licenses as is most appropriate
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for your project on a case-by-case basis.
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The terms of each license can be found in the source code repository:
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GPLv3 License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-GPLv3.txt
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Apache License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-APACHE2.txt
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*/
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package gplx.gfml; import gplx.*;
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import gplx.core.strings.*;
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class GfmlStringHighlighter {
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public String Raw() {return raw;} public GfmlStringHighlighter Raw_(String v) {raw = v; return this;} private String raw;
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public int ExcerptLen() {return excerptLen;} public GfmlStringHighlighter ExcerptLen_(int v) {excerptLen = v; return this;} int excerptLen = 40;
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public GfmlStringHighlighter Mark_(int pos, char c, String msg) {
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marks.Add(new GfmlStringHighlighterMarker().Pos_(pos).Sym_(c).Msg_(msg));
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return this;
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}
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int XtoBgnPos(int pos, int prvEndPos) {
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int rv = pos - excerptLen;
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if (rv < prvEndPos) rv = prvEndPos; // ensure bgnPos is not < prev end pos; ex: marks of 5,12; at 12, bgnPos = 2 which is less than 5; make 5
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return rv;
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}
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public String[] Gen() {
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String_bldr posBfr = String_bldr_.new_(), rawBfr = String_bldr_.new_(), symBfr = String_bldr_.new_();
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List_adp symList = List_adp_.New();
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int bgnPos = 0, endPos = 0;
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int rawLen = String_.Len(raw); int rawLenDigits = Int_.DigitCount(rawLen);
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int rawBfrBgn = -1, marksLastIdx = marks.Idx_last();
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for (int i = 0; i < marks.Count(); i++) {
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GfmlStringHighlighterMarker curMark = (GfmlStringHighlighterMarker)marks.Get_at(i);
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GfmlStringHighlighterMarker nxtMark = i == marksLastIdx ? GfmlStringHighlighterMarker.Null : (GfmlStringHighlighterMarker)marks.Get_at(i + 1);
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// bgnPos
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bgnPos = XtoBgnPos(curMark.Pos(), endPos);
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if (i == 0) rawBfrBgn = bgnPos;
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// endPos
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int nxtMarkPos = nxtMark == GfmlStringHighlighterMarker.Null ? Int_.Max_value : nxtMark.Pos();
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endPos = curMark.Pos() + excerptLen;
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if (endPos >= nxtMarkPos) endPos = nxtMarkPos;
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if (endPos > rawLen ) endPos = rawLen + 1;
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// build bfrs
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for (int j = bgnPos; j < endPos; j++) {
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char rawChar = j == rawLen ? ' ' : String_.CharAt(raw, j);
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if (rawChar == '\t') {posBfr.Add("t"); rawBfr.Add(" ");}
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else if (rawChar == '\n') {posBfr.Add("n"); rawBfr.Add(" ");}
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else {
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char posChar = j == rawLen ? '>' : ' ';
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posBfr.Add(posChar);
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rawBfr.Add(rawChar);
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}
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char symChar = j == curMark.Pos() ? curMark.Sym() : ' ';
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symBfr.Add(symChar);
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}
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// gap
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int nxtMarkBgn = XtoBgnPos(nxtMark.Pos(), endPos);
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int gap = nxtMarkBgn - endPos;
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if (gap > 0) {
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int gapDigits = Int_.DigitCount(gap);
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posBfr.Add_fmt("[{0}]", Int_.To_str_pad_bgn_zero(gap, gapDigits));
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rawBfr.Add_fmt("[{0}]", String_.Repeat(".", gapDigits));
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symBfr.Add_fmt(" {0} ", String_.Repeat(" ", gapDigits));
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}
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if (curMark.Sym() != ' ')
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symList.Add(String_.Format("[{0}] {1} {2}", Int_.To_str_pad_bgn_zero(curMark.Pos(), rawLenDigits), curMark.Sym(), curMark.Msg()));
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}
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if (rawBfrBgn == 0) {
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posBfr.Add_at(0, "<");
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rawBfr.Add_at(0, " ");
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symBfr.Add_at(0, " ");
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}
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List_adp rv = List_adp_.New();
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rv.Add(posBfr.To_str());
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rv.Add(rawBfr.To_str());
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rv.Add(symBfr.To_str());
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if (symList.Count() > 0)
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rv.Add("");
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for (int i = 0; i < symList.Count(); i++)
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rv.Add((String)symList.Get_at(i));
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return rv.To_str_ary();
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}
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List_adp marks = List_adp_.New();
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public static GfmlStringHighlighter new_() {
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GfmlStringHighlighter rv = new GfmlStringHighlighter();
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return rv;
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} GfmlStringHighlighter() {}
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}
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class GfmlStringHighlighterMarker {
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public int Pos() {return pos;} public GfmlStringHighlighterMarker Pos_(int v) {pos = v; return this;} int pos;
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public char Sym() {return sym;} public GfmlStringHighlighterMarker Sym_(char v) {sym = v; return this;} char sym;
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public String Msg() {return msg;} public GfmlStringHighlighterMarker Msg_(String v) {msg = v; return this;} private String msg;
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public static final GfmlStringHighlighterMarker Null = new GfmlStringHighlighterMarker().Pos_(-1);
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}
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