This commit is contained in:
Victor Shcherb
parent
3b56cb449d
commit
32bf8e7c35
1 changed files with 80 additions and 38 deletions
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@ -1,6 +1,7 @@
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package net.osmand;
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import java.io.UnsupportedEncodingException;
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import java.util.Arrays;
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import org.apache.commons.logging.Log;
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@ -20,61 +21,62 @@ public class Reshaper {
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}
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}
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public static String reshape(String s) {
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// if(true) {
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// return s;
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// }
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try {
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ArabicShaping as = new ArabicShaping(ArabicShaping.LETTERS_SHAPE | ArabicShaping.LENGTH_GROW_SHRINK
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);
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ArabicShaping as = new ArabicShaping(ArabicShaping.LETTERS_SHAPE |ArabicShaping.LENGTH_GROW_SHRINK);
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try {
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s = as.shape(s);
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} catch (ArabicShapingException e) {
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LOG.error(e.getMessage(), e);
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}
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Bidi line = new Bidi(s.length(), s.length());
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line.setPara(s, Bidi.LEVEL_DEFAULT_LTR, null);
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line.setPara(s, Bidi.LEVEL_DEFAULT_LTR, null);
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// line.setPara(s, Bidi.LEVEL_DEFAULT_LTR, null);
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// s = line.writeReordered(Bidi.DO_MIRRORING);
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// s = reordered;
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byte direction = line.getDirection();
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if (direction != Bidi.MIXED) {
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// unidirectional
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if(line.isLeftToRight()) {
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return s;
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} else {
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if (line.isLeftToRight()) {
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return s;
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} else {
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char[] chs = new char[s.length()];
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for(int i = 0; i< chs.length ; i++) {
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chs[i] = s.charAt(chs.length - i - 1);
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// chs[i] = s.charAt(chs.length - i - 1);
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chs[i] = mirror(s.charAt(chs.length - i - 1));
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}
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return new String(chs);
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}
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} else {
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// // mixed-directional
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// mixed-directional
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// System.out.println(s);
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// printSplit("Split", s);
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int count = line.countRuns();
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// if (styleRunCount <= 1) {
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// int style = styleRuns[0].style;
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// // iterate over directional runs
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// for (i = 0; i < count; ++i) {
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// run = line.getVisualRun(i);
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// renderRun(text, run.getStart(), run.getLimit(),
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// run.getDirection(), style);
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// }
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// }
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StringBuilder res = new StringBuilder();
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// iterate over both directional and style runs
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for (int i = 0; i < count; ++i) {
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StringBuilder runs = new StringBuilder();
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BidiRun run = line.getVisualRun(i);
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int st = run.getStart();
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int e = run.getLimit();
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int j = run.getDirection() == Bidi.LTR ? st : e - 1;
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int l = run.getDirection() == Bidi.LTR ? e : st - 1;
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boolean plus = run.getDirection() == Bidi.LTR;
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while (j != l) {
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res.append(s.charAt(j));
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if (plus) {
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j++;
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} else {
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j--;
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boolean ltr = run.getDirection() == Bidi.LTR;
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int start = run.getStart();
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int limit = run.getLimit();
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int begin = ltr ? start : limit - 1;
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int end = ltr ? limit : start - 1;
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int ind = begin;
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while (ind != end) {
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char ch = s.charAt(ind);
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if (!ltr) {
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ch = mirror(ch);
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}
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res.append(ch);
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runs.append(ch);
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if (ltr) {
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ind++;
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} else {
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ind--;
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}
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}
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printSplit(run.getDirection() + " " + run.getEmbeddingLevel(), runs.toString());
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}
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return res.toString();
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}
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@ -84,6 +86,15 @@ public class Reshaper {
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}
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}
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private static char mirror(char ch) {
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switch (ch) {
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case '(': ch = ')'; break;
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case ')': ch = '('; break;
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case '[': ch = ']'; break;
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case ']': ch = '['; break;
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}
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return ch;
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}
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public static void main(String[] args) {
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// char[] c = new char[] {'א', 'ד','ם', ' ', '1', '2'} ;
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// String reshape = "אדם";
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@ -93,25 +104,56 @@ public class Reshaper {
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// System.out.println(reshape.charAt(i));
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// }
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test2();
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// test3();
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test3();
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test4();
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test5();
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}
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private static void test3() {
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String s = "מרכז מסחרי/השלום (40050)";
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String reshape = reshape(s);
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String expected = "(40050) םולשה/ירחסמ זכרמ";
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check(s, reshape, expected);
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}
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private static void test5() {
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String s = "מרכז מסחרי/השלום (מרז)";
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String reshape = reshape(s);
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String expected = "(זרמ) םולשה/ירחסמ זכרמ";
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check(s, reshape, expected);
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}
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private static void check(String source, String reshape, String expected) {
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printSplit("Source ", source);
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printSplit("Expected", expected);
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printSplit("Reshaped", reshape);
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System.out.println(reshape);
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if (!reshape.equals(expected)) {
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throw new IllegalArgumentException(String.format("Bug: expected '%s', reshaped '%s'", expected, reshape));
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}
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}
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private static void printSplit(String p, String source) {
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System.out.print(p);
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System.out.print(": \u2066");
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for(int i = 0; i < source.length(); i++) {
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System.out.print(source.charAt(i));
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System.out.print(" \u200e");
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}
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// System.out.println(Arrays.toString(source.toCharArray()));
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System.out.println();
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System.out.flush();
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}
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private static void test2() {
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String s = "گچ پژ نمکی باللغة العربي";
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String reshape = reshape(s);
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String expected = "ﻲﺑﺮﻌﻟﺍ ﺔﻐﻠﻟﺎﺑ ﯽﮑﻤﻧ ﮋﭘ ﭻﮔ";
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if (!reshape.equals(expected)) {
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throw new IllegalArgumentException(String.format("Bug: expected '%s', reshaped '%s'", expected, reshape));
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}
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String expected1 = "ﻲﺑﺮﻌﻟﺍ ﺔﻐﻠﻟﺎﺑ ﯽﮑﻤﻧ ﮋﭘ ﭻﮔ";
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String expected2 = "ﻲﺑﺮﻌﻟﺍ ﺔﻐﻠﻟﺎﺑ یکﻤﻧ ژپ چگ";
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check(s, reshape, expected1);
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}
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private static void test4() {
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String s = "Abc (123)";
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check(s, reshape(s), s);
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}
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}
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}
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