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476 lines
17 KiB
476 lines
17 KiB
// © 2016 and later: Unicode, Inc. and others.
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// License & terms of use: http://www.unicode.org/copyright.html
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/*
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**********************************************************************
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* Copyright (C) 1999-2016, International Business Machines
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* Corporation and others. All Rights Reserved.
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**********************************************************************
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* Date Name Description
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* 12/09/99 aliu Ported from Java.
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**********************************************************************
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*/
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#include "unicode/utypes.h"
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#if !UCONFIG_NO_COLLATION
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#include "thcoll.h"
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#include "unicode/utypes.h"
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#include "unicode/coll.h"
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#include "unicode/localpointer.h"
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#include "unicode/sortkey.h"
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#include "unicode/tblcoll.h"
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#include "unicode/ustring.h"
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#include "cmemory.h"
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#include "cstring.h"
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#include "filestrm.h"
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#include "textfile.h"
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/**
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* The TestDictionary test expects a file of this name, with this
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* encoding, to be present in the directory $ICU/source/test/testdata.
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*/
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//#define TEST_FILE "th18057.txt"
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/**
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* This is the most failures we show in TestDictionary. If this number
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* is < 0, we show all failures.
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*/
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#define MAX_FAILURES_TO_SHOW -1
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CollationThaiTest::CollationThaiTest() {
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UErrorCode status = U_ZERO_ERROR;
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coll = Collator::createInstance(Locale("th", "TH", ""), status);
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if (coll && U_SUCCESS(status)) {
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//coll->setStrength(Collator::TERTIARY);
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} else {
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delete coll;
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coll = 0;
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}
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}
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CollationThaiTest::~CollationThaiTest() {
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delete coll;
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}
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void CollationThaiTest::runIndexedTest(int32_t index, UBool exec, const char* &name,
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char* /*par*/) {
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if((!coll) && exec) {
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dataerrln(__FILE__ " cannot test - failed to create collator.");
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name = "some test";
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return;
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}
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switch (index) {
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TESTCASE(0,TestDictionary);
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TESTCASE(1,TestCornerCases);
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TESTCASE(2,TestNamesList);
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TESTCASE(3,TestInvalidThai);
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TESTCASE(4,TestReordering);
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default: name = ""; break;
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}
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}
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/**
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* Read the external names list, and confirms that the collator
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* gets the same results when comparing lines one to another
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* using regular and iterative comparison.
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*/
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void CollationThaiTest::TestNamesList(void) {
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if (coll == 0) {
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errln("Error: could not construct Thai collator");
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return;
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}
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UErrorCode ec = U_ZERO_ERROR;
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TextFile names("TestNames_Thai.txt", "UTF16LE", ec);
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if (U_FAILURE(ec)) {
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logln("Can't open TestNames_Thai.txt: %s; skipping test",
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u_errorName(ec));
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return;
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}
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//
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// Loop through each word in the dictionary and compare it to the previous
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// word. They should be in sorted order.
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//
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UnicodeString lastWord, word;
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//int32_t failed = 0;
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int32_t wordCount = 0;
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while (names.readLineSkippingComments(word, ec, FALSE) && U_SUCCESS(ec)) {
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// Show the first 8 words being compared, so we can see what's happening
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++wordCount;
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if (wordCount <= 8) {
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UnicodeString str;
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logln((UnicodeString)"Word " + wordCount + ": " + IntlTest::prettify(word, str));
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}
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if (lastWord.length() > 0) {
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Collator::EComparisonResult result = coll->compare(lastWord, word);
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doTest(coll, lastWord, word, result);
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}
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lastWord = word;
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}
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assertSuccess("readLine", ec);
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logln((UnicodeString)"Words checked: " + wordCount);
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}
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/**
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* Read the external dictionary file, which is already in proper
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* sorted order, and confirm that the collator compares each line as
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* preceding the following line.
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*/
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void CollationThaiTest::TestDictionary(void) {
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if (coll == 0) {
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errln("Error: could not construct Thai collator");
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return;
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}
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UErrorCode ec = U_ZERO_ERROR;
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TextFile riwords("riwords.txt", "UTF8", ec);
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if (U_FAILURE(ec)) {
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logln("Can't open riwords.txt: %s; skipping test",
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u_errorName(ec));
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return;
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}
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//
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// Loop through each word in the dictionary and compare it to the previous
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// word. They should be in sorted order.
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//
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UnicodeString lastWord, word;
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int32_t failed = 0;
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int32_t wordCount = 0;
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while (riwords.readLineSkippingComments(word, ec, FALSE) && U_SUCCESS(ec)) {
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// Show the first 8 words being compared, so we can see what's happening
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++wordCount;
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if (wordCount <= 8) {
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UnicodeString str;
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logln((UnicodeString)"Word " + wordCount + ": " + IntlTest::prettify(word, str));
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}
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if (lastWord.length() > 0) {
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int32_t result = coll->compare(lastWord, word);
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if (result > 0) {
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failed++;
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if (MAX_FAILURES_TO_SHOW < 0 || failed <= MAX_FAILURES_TO_SHOW) {
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UnicodeString str;
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UnicodeString msg =
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UnicodeString("--------------------------------------------\n")
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+ riwords.getLineNumber()
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+ " compare(" + IntlTest::prettify(lastWord, str);
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msg += UnicodeString(", ")
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+ IntlTest::prettify(word, str) + ") returned " + result
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+ ", expected -1\n";
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UErrorCode status = U_ZERO_ERROR;
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CollationKey k1, k2;
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coll->getCollationKey(lastWord, k1, status);
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coll->getCollationKey(word, k2, status);
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if (U_FAILURE(status)) {
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errln((UnicodeString)"Fail: getCollationKey returned " + u_errorName(status));
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return;
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}
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msg.append("key1: ").append(prettify(k1, str)).append("\n");
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msg.append("key2: ").append(prettify(k2, str));
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errln(msg);
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}
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}
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}
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lastWord = word;
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}
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assertSuccess("readLine", ec);
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if (failed != 0) {
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if (failed > MAX_FAILURES_TO_SHOW) {
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errln((UnicodeString)"Too many failures; only the first " +
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MAX_FAILURES_TO_SHOW + " failures were shown");
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}
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errln((UnicodeString)"Summary: " + failed + " of " + (riwords.getLineNumber() - 1) +
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" comparisons failed");
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}
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logln((UnicodeString)"Words checked: " + wordCount);
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}
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/**
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* Odd corner conditions taken from "How to Sort Thai Without Rewriting Sort",
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* by Doug Cooper, http://seasrc.th.net/paper/thaisort.zip
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*/
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void CollationThaiTest::TestCornerCases(void) {
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const char* TESTS[] = {
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// Shorter words precede longer
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"\\u0e01", "<", "\\u0e01\\u0e01",
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// Tone marks are considered after letters (i.e. are primary ignorable)
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"\\u0e01\\u0e32", "<", "\\u0e01\\u0e49\\u0e32",
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// ditto for other over-marks
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"\\u0e01\\u0e32", "<", "\\u0e01\\u0e32\\u0e4c",
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// commonly used mark-in-context order.
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// In effect, marks are sorted after each syllable.
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"\\u0e01\\u0e32\\u0e01\\u0e49\\u0e32", "<", "\\u0e01\\u0e48\\u0e32\\u0e01\\u0e49\\u0e32",
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// Hyphens and other punctuation follow whitespace but come before letters
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"\\u0e01\\u0e32", "=", "\\u0e01\\u0e32-",
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"\\u0e01\\u0e32-", "<", "\\u0e01\\u0e32\\u0e01\\u0e32",
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// Doubler follows an indentical word without the doubler
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"\\u0e01\\u0e32", "=", "\\u0e01\\u0e32\\u0e46",
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"\\u0e01\\u0e32\\u0e46", "<", "\\u0e01\\u0e32\\u0e01\\u0e32",
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// \\u0e45 after either \\u0e24 or \\u0e26 is treated as a single
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// combining character, similar to "c < ch" in traditional spanish.
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// TODO: beef up this case
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"\\u0e24\\u0e29\\u0e35", "<", "\\u0e24\\u0e45\\u0e29\\u0e35",
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"\\u0e26\\u0e29\\u0e35", "<", "\\u0e26\\u0e45\\u0e29\\u0e35",
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// Vowels reorder, should compare \\u0e2d and \\u0e34
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"\\u0e40\\u0e01\\u0e2d", "<", "\\u0e40\\u0e01\\u0e34",
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// Tones are compared after the rest of the word (e.g. primary ignorable)
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"\\u0e01\\u0e32\\u0e01\\u0e48\\u0e32", "<", "\\u0e01\\u0e49\\u0e32\\u0e01\\u0e32",
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// Periods are ignored entirely
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"\\u0e01.\\u0e01.", "<", "\\u0e01\\u0e32",
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};
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const int32_t TESTS_length = UPRV_LENGTHOF(TESTS);
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if (coll == 0) {
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errln("Error: could not construct Thai collator");
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return;
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}
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compareArray(*coll, TESTS, TESTS_length);
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}
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//------------------------------------------------------------------------
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// Internal utilities
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//------------------------------------------------------------------------
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void CollationThaiTest::compareArray(Collator& c, const char* tests[],
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int32_t testsLength) {
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for (int32_t i = 0; i < testsLength; i += 3) {
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Collator::EComparisonResult expect;
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if (tests[i+1][0] == '<') {
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expect = Collator::LESS;
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} else if (tests[i+1][0] == '>') {
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expect = Collator::GREATER;
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} else if (tests[i+1][0] == '=') {
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expect = Collator::EQUAL;
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} else {
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// expect = Integer.decode(tests[i+1]).intValue();
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errln((UnicodeString)"Error: unknown operator " + tests[i+1]);
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return;
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}
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UnicodeString s1, s2;
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parseChars(s1, tests[i]);
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parseChars(s2, tests[i+2]);
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doTest(&c, s1, s2, expect);
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#if 0
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UErrorCode status = U_ZERO_ERROR;
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int32_t result = c.compare(s1, s2);
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if (sign(result) != sign(expect))
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{
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UnicodeString t1, t2;
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errln(UnicodeString("") +
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i/3 + ": compare(" + IntlTest::prettify(s1, t1)
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+ " , " + IntlTest::prettify(s2, t2)
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+ ") got " + result + "; expected " + expect);
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CollationKey k1, k2;
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c.getCollationKey(s1, k1, status);
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c.getCollationKey(s2, k2, status);
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if (U_FAILURE(status)) {
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errln((UnicodeString)"Fail: getCollationKey returned " + u_errorName(status));
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return;
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}
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errln((UnicodeString)" key1: " + prettify(k1, t1) );
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errln((UnicodeString)" key2: " + prettify(k2, t2) );
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}
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else
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{
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// Collator.compare worked OK; now try the collation keys
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CollationKey k1, k2;
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c.getCollationKey(s1, k1, status);
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c.getCollationKey(s2, k2, status);
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if (U_FAILURE(status)) {
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errln((UnicodeString)"Fail: getCollationKey returned " + u_errorName(status));
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return;
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}
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result = k1.compareTo(k2);
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if (sign(result) != sign(expect)) {
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UnicodeString t1, t2;
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errln(UnicodeString("") +
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i/3 + ": key(" + IntlTest::prettify(s1, t1)
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+ ").compareTo(key(" + IntlTest::prettify(s2, t2)
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+ ")) got " + result + "; expected " + expect);
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errln((UnicodeString)" " + prettify(k1, t1) + " vs. " + prettify(k2, t2));
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}
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}
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#endif
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}
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}
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int8_t CollationThaiTest::sign(int32_t i) {
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if (i < 0) return -1;
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if (i > 0) return 1;
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return 0;
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}
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/**
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* Set a UnicodeString corresponding to the given string. Use
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* UnicodeString and the default converter, unless we see the sequence
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* "\\u", in which case we interpret the subsequent escape.
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*/
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UnicodeString& CollationThaiTest::parseChars(UnicodeString& result,
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const char* chars) {
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return result = CharsToUnicodeString(chars);
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}
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UCollator *thaiColl = NULL;
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U_CDECL_BEGIN
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static int U_CALLCONV
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StrCmp(const void *p1, const void *p2) {
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return ucol_strcoll(thaiColl, *(UChar **) p1, -1, *(UChar **)p2, -1);
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}
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U_CDECL_END
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#define LINES 6
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void CollationThaiTest::TestInvalidThai(void) {
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const char *tests[LINES] = {
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"\\u0E44\\u0E01\\u0E44\\u0E01",
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"\\u0E44\\u0E01\\u0E01\\u0E44",
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"\\u0E01\\u0E44\\u0E01\\u0E44",
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"\\u0E01\\u0E01\\u0E44\\u0E44",
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"\\u0E44\\u0E44\\u0E01\\u0E01",
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"\\u0E01\\u0E44\\u0E44\\u0E01",
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};
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UChar strings[LINES][20];
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UChar *toSort[LINES];
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int32_t i = 0, j = 0, len = 0;
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UErrorCode coll_status = U_ZERO_ERROR;
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UnicodeString iteratorText;
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thaiColl = ucol_open ("th_TH", &coll_status);
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if (U_FAILURE(coll_status)) {
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errln("Error opening Thai collator: %s", u_errorName(coll_status));
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return;
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}
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CollationElementIterator* c = ((RuleBasedCollator *)coll)->createCollationElementIterator( iteratorText );
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for(i = 0; i < UPRV_LENGTHOF(tests); i++) {
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len = u_unescape(tests[i], strings[i], 20);
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strings[i][len] = 0;
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toSort[i] = strings[i];
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}
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qsort (toSort, LINES, sizeof (UChar *), StrCmp);
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for (i=0; i < LINES; i++)
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{
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logln("%i", i);
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for (j=i+1; j < LINES; j++) {
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if (ucol_strcoll (thaiColl, toSort[i], -1, toSort[j], -1) == UCOL_GREATER)
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{
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// inconsistency ordering found!
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errln("Inconsistent ordering between strings %i and %i", i, j);
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}
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}
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iteratorText.setTo(toSort[i]);
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c->setText(iteratorText, coll_status);
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backAndForth(*c);
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}
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ucol_close(thaiColl);
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delete c;
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}
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void CollationThaiTest::TestReordering(void) {
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// Until UCA 4.1, the collation code swapped Thai/Lao prevowels with the following consonants,
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// resulting in consonant+prevowel == prevowel+consonant.
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// From UCA 5.0 on, there are order-reversing contractions for prevowel+consonant.
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// From UCA 5.0 until UCA 6.1, there was a tertiary difference between
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// consonant+prevowel and prevowel+consonant.
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// In UCA 6.2, they compare equal again.
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// The test was modified to using a collator with strength=secondary,
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// ignoring possible tertiary differences.
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const char *tests[] = {
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"\\u0E41c\\u0301", "=", "\\u0E41\\u0107", // composition
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"\\u0E41\\U0001D7CE", "<", "\\u0E41\\U0001D7CF", // supplementaries
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"\\u0E41\\U0001D15F", "=", "\\u0E41\\U0001D158\\U0001D165", // supplementary composition decomps to supplementary
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"\\u0E41\\U0002F802", "=", "\\u0E41\\u4E41", // supplementary composition decomps to BMP
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"\\u0E41\\u0301", "=", "\\u0E41\\u0301", // unsafe (just checking backwards iteration)
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"\\u0E41\\u0301\\u0316", "=", "\\u0E41\\u0316\\u0301",
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"\\u0e24\\u0e41", "=", "\\u0e41\\u0e24", // exiting contraction bug
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"\\u0e3f\\u0e3f\\u0e24\\u0e41", "=", "\\u0e3f\\u0e3f\\u0e41\\u0e24",
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"abc\\u0E41c\\u0301", "=", "abc\\u0E41\\u0107", // composition
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"abc\\u0E41\\U0001D000", "<", "abc\\u0E41\\U0001D001", // supplementaries
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"abc\\u0E41\\U0001D15F", "=", "abc\\u0E41\\U0001D158\\U0001D165", // supplementary composition decomps to supplementary
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"abc\\u0E41\\U0002F802", "=", "abc\\u0E41\\u4E41", // supplementary composition decomps to BMP
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"abc\\u0E41\\u0301", "=", "abc\\u0E41\\u0301", // unsafe (just checking backwards iteration)
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"abc\\u0E41\\u0301\\u0316", "=", "abc\\u0E41\\u0316\\u0301",
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"\\u0E41c\\u0301abc", "=", "\\u0E41\\u0107abc", // composition
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"\\u0E41\\U0001D000abc", "<", "\\u0E41\\U0001D001abc", // supplementaries
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"\\u0E41\\U0001D15Fabc", "=", "\\u0E41\\U0001D158\\U0001D165abc", // supplementary composition decomps to supplementary
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"\\u0E41\\U0002F802abc", "=", "\\u0E41\\u4E41abc", // supplementary composition decomps to BMP
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"\\u0E41\\u0301abc", "=", "\\u0E41\\u0301abc", // unsafe (just checking backwards iteration)
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"\\u0E41\\u0301\\u0316abc", "=", "\\u0E41\\u0316\\u0301abc",
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"abc\\u0E41c\\u0301abc", "=", "abc\\u0E41\\u0107abc", // composition
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"abc\\u0E41\\U0001D000abc", "<", "abc\\u0E41\\U0001D001abc", // supplementaries
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"abc\\u0E41\\U0001D15Fabc", "=", "abc\\u0E41\\U0001D158\\U0001D165abc", // supplementary composition decomps to supplementary
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"abc\\u0E41\\U0002F802abc", "=", "abc\\u0E41\\u4E41abc", // supplementary composition decomps to BMP
|
|
"abc\\u0E41\\u0301abc", "=", "abc\\u0E41\\u0301abc", // unsafe (just checking backwards iteration)
|
|
"abc\\u0E41\\u0301\\u0316abc", "=", "abc\\u0E41\\u0316\\u0301abc",
|
|
};
|
|
|
|
LocalPointer<Collator> coll2(coll->clone());
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
coll2->setAttribute(UCOL_STRENGTH, UCOL_SECONDARY, status);
|
|
if(U_FAILURE(status)) {
|
|
errln("Unable to set the Thai collator clone to secondary strength");
|
|
return;
|
|
}
|
|
compareArray(*coll2, tests, UPRV_LENGTHOF(tests));
|
|
|
|
const char *rule = "& c < ab";
|
|
const char *testcontraction[] = { "\\u0E41ab", ">", "\\u0E41c"}; // After UCA 4.1 Thai are normal so won't break a contraction
|
|
UnicodeString rules;
|
|
parseChars(rules, rule);
|
|
LocalPointer<RuleBasedCollator> rcoll(new RuleBasedCollator(rules, status), status);
|
|
if(U_SUCCESS(status)) {
|
|
compareArray(*rcoll, testcontraction, 3);
|
|
} else {
|
|
errln("Couldn't instantiate collator from rules");
|
|
}
|
|
|
|
}
|
|
|
|
|
|
#endif /* #if !UCONFIG_NO_COLLATION */
|