/******************************************************************** * COPYRIGHT: * Copyright (c) 2002-2007, International Business Machines Corporation and * others. All Rights Reserved. ********************************************************************/ // // regextst.cpp // // ICU Regular Expressions test, part of intltest. // #include "intltest.h" #if !UCONFIG_NO_REGULAR_EXPRESSIONS #include "unicode/regex.h" #include "unicode/uchar.h" #include "unicode/ucnv.h" #include "regextst.h" #include "uvector.h" #include "util.h" #include #include #include //--------------------------------------------------------------------------- // // Test class boilerplate // //--------------------------------------------------------------------------- RegexTest::RegexTest() { } RegexTest::~RegexTest() { } void RegexTest::runIndexedTest( int32_t index, UBool exec, const char* &name, char* /*par*/ ) { if (exec) logln("TestSuite RegexTest: "); switch (index) { case 0: name = "Basic"; if (exec) Basic(); break; case 1: name = "API_Match"; if (exec) API_Match(); break; case 2: name = "API_Replace"; if (exec) API_Replace(); break; case 3: name = "API_Pattern"; if (exec) API_Pattern(); break; case 4: name = "Extended"; if (exec) Extended(); break; case 5: name = "Errors"; if (exec) Errors(); break; case 6: name = "PerlTests"; if (exec) PerlTests(); break; default: name = ""; break; //needed to end loop } } //--------------------------------------------------------------------------- // // Error Checking / Reporting macros used in all of the tests. // //--------------------------------------------------------------------------- #define REGEX_CHECK_STATUS {if (U_FAILURE(status)) {errln("RegexTest failure at line %d. status=%s\n", \ __LINE__, u_errorName(status)); return;}} #define REGEX_ASSERT(expr) {if ((expr)==FALSE) {errln("RegexTest failure at line %d.\n", __LINE__);};} #define REGEX_ASSERT_FAIL(expr, errcode) {UErrorCode status=U_ZERO_ERROR; (expr);\ if (status!=errcode) {errln("RegexTest failure at line %d. Expected status=%s, got %s\n", \ __LINE__, u_errorName(errcode), u_errorName(status));};} #define REGEX_CHECK_STATUS_L(line) {if (U_FAILURE(status)) {errln( \ "RegexTest failure at line %d, from %d. status=%d\n",__LINE__, (line), status); }} #define REGEX_ASSERT_L(expr, line) {if ((expr)==FALSE) { \ errln("RegexTest failure at line %d, from %d.", __LINE__, (line)); return;}} //--------------------------------------------------------------------------- // // REGEX_TESTLM Macro + invocation function to simplify writing quick tests // for the LookingAt() and Match() functions. // // usage: // REGEX_TESTLM("pattern", "input text", lookingAt expected, matches expected); // // The expected results are UBool - TRUE or FALSE. // The input text is unescaped. The pattern is not. // // //--------------------------------------------------------------------------- #define REGEX_TESTLM(pat, text, looking, match) doRegexLMTest(pat, text, looking, match, __LINE__); UBool RegexTest::doRegexLMTest(const char *pat, const char *text, UBool looking, UBool match, int32_t line) { const UnicodeString pattern(pat); const UnicodeString inputText(text); UErrorCode status = U_ZERO_ERROR; UParseError pe; RegexPattern *REPattern = NULL; RegexMatcher *REMatcher = NULL; UBool retVal = TRUE; UnicodeString patString(pat); REPattern = RegexPattern::compile(patString, 0, pe, status); if (U_FAILURE(status)) { errln("RegexTest failure in RegexPattern::compile() at line %d. Status = %s\n", line, u_errorName(status)); return FALSE; } if (line==376) { RegexPatternDump(REPattern);} UnicodeString inputString(inputText); UnicodeString unEscapedInput = inputString.unescape(); REMatcher = REPattern->matcher(unEscapedInput, status); if (U_FAILURE(status)) { errln("RegexTest failure in REPattern::matcher() at line %d. Status = %s\n", line, u_errorName(status)); return FALSE; } UBool actualmatch; actualmatch = REMatcher->lookingAt(status); if (U_FAILURE(status)) { errln("RegexTest failure in lookingAt() at line %d. Status = %s\n", line, u_errorName(status)); retVal = FALSE; } if (actualmatch != looking) { errln("RegexTest: wrong return from lookingAt() at line %d.\n", line); retVal = FALSE; } status = U_ZERO_ERROR; actualmatch = REMatcher->matches(status); if (U_FAILURE(status)) { errln("RegexTest failure in matches() at line %d. Status = %s\n", line, u_errorName(status)); retVal = FALSE; } if (actualmatch != match) { errln("RegexTest: wrong return from matches() at line %d.\n", line); retVal = FALSE; } if (retVal == FALSE) { RegexPatternDump(REPattern); } delete REPattern; delete REMatcher; return retVal; } //--------------------------------------------------------------------------- // // regex_find(pattern, inputString, lineNumber) // // function to simplify writing tests regex tests. // // The input text is unescaped. The pattern is not. // The input text is marked with the expected match positions // <0>text <1> more text // The tags are removed before trying the match. // The tags mark the start and end of the match and of any capture groups. // // //--------------------------------------------------------------------------- // Set a value into a UVector at position specified by a decimal number in // a UnicodeString. This is a utility function needed by the actual test function, // which follows. static void set(UVector &vec, int32_t val, UnicodeString index) { UErrorCode status=U_ZERO_ERROR; int32_t idx = 0; for (int32_t i=0; i= 0) { // 'i' flag bflags |= UREGEX_CASE_INSENSITIVE; } if (flags.indexOf((UChar)0x78) >= 0) { // 'x' flag bflags |= UREGEX_COMMENTS; } if (flags.indexOf((UChar)0x73) >= 0) { // 's' flag bflags |= UREGEX_DOTALL; } if (flags.indexOf((UChar)0x6d) >= 0) { // 'm' flag bflags |= UREGEX_MULTILINE; } callerPattern = RegexPattern::compile(pattern, bflags, pe, status); if (status != U_ZERO_ERROR) { #if UCONFIG_NO_BREAK_ITERATION==1 // 'v' test flag means that the test pattern should not compile if ICU was configured // to not include break iteration. RBBI is needed for Unicode word boundaries. if (flags.indexOf((UChar)0x76) >= 0 /*'v'*/ && status == U_UNSUPPORTED_ERROR) { goto cleanupAndReturn; } #endif errln("Line %d: error %s compiling pattern.", line, u_errorName(status)); goto cleanupAndReturn; } if (flags.indexOf((UChar)'d') >= 0) { RegexPatternDump(callerPattern); } // // Number of times find() should be called on the test string, default to 1 // numFinds = 1; for (i=2; i<=9; i++) { if (flags.indexOf((UChar)(0x30 + i)) >= 0) { // digit flag if (numFinds != 1) { errln("Line %d: more than one digit flag. Scanning %d.", line, i); goto cleanupAndReturn; } numFinds = i; } } // // Find the tags in the input data, remove them, and record the group boundary // positions. // parsePat = RegexPattern::compile("<(/?)([0-9]+)>", 0, pe, status); REGEX_CHECK_STATUS_L(line); unEscapedInput = inputString.unescape(); parseMatcher = parsePat->matcher(unEscapedInput, status); REGEX_CHECK_STATUS_L(line); while(parseMatcher->find()) { parseMatcher->appendReplacement(deTaggedInput, "", status); REGEX_CHECK_STATUS; UnicodeString groupNum = parseMatcher->group(2, status); if (parseMatcher->group(1, status) == "/") { // close tag set(groupEnds, deTaggedInput.length(), groupNum); } else { set(groupStarts, deTaggedInput.length(), groupNum); } } parseMatcher->appendTail(deTaggedInput); REGEX_ASSERT_L(groupStarts.size() == groupEnds.size(), line); // // Do a find on the de-tagged input using the caller's pattern // matcher = callerPattern->matcher(deTaggedInput, status); REGEX_CHECK_STATUS_L(line); if (flags.indexOf((UChar)'t') >= 0) { matcher->setTrace(TRUE); } for (i=0; ifind(); } matcher->setTrace(FALSE); // // Match up the groups from the find() with the groups from the tags // // number of tags should match number of groups from find operation. // matcher->groupCount does not include group 0, the entire match, hence the +1. // G option in test means that capture group data is not available in the // expected results, so the check needs to be suppressed. if (isMatch == FALSE && groupStarts.size() != 0) { errln("Error at line %d: Match expected, but none found.\n", line); failed = TRUE; goto cleanupAndReturn; } if (flags.indexOf((UChar)0x47 /*G*/) >= 0) { // Only check for match / no match. Don't check capture groups. if (isMatch && groupStarts.size() == 0) { errln("Error at line %d: No match expected, but one found.\n", line); failed = TRUE; } goto cleanupAndReturn; } for (i=0; i<=matcher->groupCount(); i++) { int32_t expectedStart = (i >= groupStarts.size()? -1 : groupStarts.elementAti(i)); if (matcher->start(i, status) != expectedStart) { errln("Error at line %d: incorrect start position for group %d. Expected %d, got %d", line, i, expectedStart, matcher->start(i, status)); failed = TRUE; goto cleanupAndReturn; // Good chance of subsequent bogus errors. Stop now. } int32_t expectedEnd = (i >= groupEnds.size()? -1 : groupEnds.elementAti(i)); if (matcher->end(i, status) != expectedEnd) { errln("Error at line %d: incorrect end position for group %d. Expected %d, got %d", line, i, expectedEnd, matcher->end(i, status)); failed = TRUE; // Error on end position; keep going; real error is probably yet to come as group // end positions work from end of the input data towards the front. } } if ( matcher->groupCount()+1 < groupStarts.size()) { errln("Error at line %d: Expected %d capture groups, found %d.", line, groupStarts.size()-1, matcher->groupCount()); failed = TRUE; } cleanupAndReturn: if (failed) { errln((UnicodeString)"\""+pattern+(UnicodeString)"\" " +flags+(UnicodeString)" \""+inputString+(UnicodeString)"\""); // callerPattern->dump(); } delete parseMatcher; delete parsePat; delete matcher; delete callerPattern; } //--------------------------------------------------------------------------- // // REGEX_ERR Macro + invocation function to simplify writing tests // regex tests for incorrect patterns // // usage: // REGEX_ERR("pattern", expected error line, column, expected status); // //--------------------------------------------------------------------------- #define REGEX_ERR(pat, line, col, status) regex_err(pat, line, col, status, __LINE__); void RegexTest::regex_err(const char *pat, int32_t errLine, int32_t errCol, UErrorCode expectedStatus, int32_t line) { UnicodeString pattern(pat); UErrorCode status = U_ZERO_ERROR; UParseError pe; RegexPattern *callerPattern = NULL; // // Compile the caller's pattern // UnicodeString patString(pat); callerPattern = RegexPattern::compile(patString, 0, pe, status); if (status != expectedStatus) { errln("Line %d: unexpected error %s compiling pattern.", line, u_errorName(status)); } else { if (status != U_ZERO_ERROR) { if (pe.line != errLine || pe.offset != errCol) { errln("Line %d: incorrect line/offset from UParseError. Expected %d/%d; got %d/%d.\n", line, errLine, errCol, pe.line, pe.offset); } } } delete callerPattern; } //--------------------------------------------------------------------------- // // Basic Check for basic functionality of regex pattern matching. // Avoid the use of REGEX_FIND test macro, which has // substantial dependencies on basic Regex functionality. // //--------------------------------------------------------------------------- void RegexTest::Basic() { // // Debug - slide failing test cases early // #if 0 { // REGEX_TESTLM("a\N{LATIN SMALL LETTER B}c", "abc", FALSE, FALSE); UParseError pe; UErrorCode status = U_ZERO_ERROR; RegexPattern::compile("^(?:a?b?)*$", 0, pe, status); // REGEX_FIND("(?>(abc{2,4}?))(c*)", "<0>ab<1>cc<2>cccddd"); // REGEX_FIND("(X([abc=X]+)+X)|(y[abc=]+)", "=XX===================="); } exit(1); #endif // // Pattern with parentheses // REGEX_TESTLM("st(abc)ring", "stabcring thing", TRUE, FALSE); REGEX_TESTLM("st(abc)ring", "stabcring", TRUE, TRUE); REGEX_TESTLM("st(abc)ring", "stabcrung", FALSE, FALSE); // // Patterns with * // REGEX_TESTLM("st(abc)*ring", "string", TRUE, TRUE); REGEX_TESTLM("st(abc)*ring", "stabcring", TRUE, TRUE); REGEX_TESTLM("st(abc)*ring", "stabcabcring", TRUE, TRUE); REGEX_TESTLM("st(abc)*ring", "stabcabcdring", FALSE, FALSE); REGEX_TESTLM("st(abc)*ring", "stabcabcabcring etc.", TRUE, FALSE); REGEX_TESTLM("a*", "", TRUE, TRUE); REGEX_TESTLM("a*", "b", TRUE, FALSE); // // Patterns with "." // REGEX_TESTLM(".", "abc", TRUE, FALSE); REGEX_TESTLM("...", "abc", TRUE, TRUE); REGEX_TESTLM("....", "abc", FALSE, FALSE); REGEX_TESTLM(".*", "abcxyz123", TRUE, TRUE); REGEX_TESTLM("ab.*xyz", "abcdefghij", FALSE, FALSE); REGEX_TESTLM("ab.*xyz", "abcdefg...wxyz", TRUE, TRUE); REGEX_TESTLM("ab.*xyz", "abcde...wxyz...abc..xyz", TRUE, TRUE); REGEX_TESTLM("ab.*xyz", "abcde...wxyz...abc..xyz...", TRUE, FALSE); // // Patterns with * applied to chars at end of literal string // REGEX_TESTLM("abc*", "ab", TRUE, TRUE); REGEX_TESTLM("abc*", "abccccc", TRUE, TRUE); // // Supplemental chars match as single chars, not a pair of surrogates. // REGEX_TESTLM(".", "\\U00011000", TRUE, TRUE); REGEX_TESTLM("...", "\\U00011000x\\U00012002", TRUE, TRUE); REGEX_TESTLM("...", "\\U00011000x\\U00012002y", TRUE, FALSE); // // UnicodeSets in the pattern // REGEX_TESTLM("[1-6]", "1", TRUE, TRUE); REGEX_TESTLM("[1-6]", "3", TRUE, TRUE); REGEX_TESTLM("[1-6]", "7", FALSE, FALSE); REGEX_TESTLM("a[1-6]", "a3", TRUE, TRUE); REGEX_TESTLM("a[1-6]", "a3", TRUE, TRUE); REGEX_TESTLM("a[1-6]b", "a3b", TRUE, TRUE); REGEX_TESTLM("a[0-9]*b", "a123b", TRUE, TRUE); REGEX_TESTLM("a[0-9]*b", "abc", TRUE, FALSE); REGEX_TESTLM("[\\p{Nd}]*", "123456", TRUE, TRUE); REGEX_TESTLM("[\\p{Nd}]*", "a123456", TRUE, FALSE); // note that * matches 0 occurences. REGEX_TESTLM("[a][b][[:Zs:]]*", "ab ", TRUE, TRUE); // // OR operator in patterns // REGEX_TESTLM("(a|b)", "a", TRUE, TRUE); REGEX_TESTLM("(a|b)", "b", TRUE, TRUE); REGEX_TESTLM("(a|b)", "c", FALSE, FALSE); REGEX_TESTLM("a|b", "b", TRUE, TRUE); REGEX_TESTLM("(a|b|c)*", "aabcaaccbcabc", TRUE, TRUE); REGEX_TESTLM("(a|b|c)*", "aabcaaccbcabdc", TRUE, FALSE); REGEX_TESTLM("(a(b|c|d)(x|y|z)*|123)", "ac", TRUE, TRUE); REGEX_TESTLM("(a(b|c|d)(x|y|z)*|123)", "123", TRUE, TRUE); REGEX_TESTLM("(a|(1|2)*)(b|c|d)(x|y|z)*|123", "123", TRUE, TRUE); REGEX_TESTLM("(a|(1|2)*)(b|c|d)(x|y|z)*|123", "222211111czzzzw", TRUE, FALSE); // // + // REGEX_TESTLM("ab+", "abbc", TRUE, FALSE); REGEX_TESTLM("ab+c", "ac", FALSE, FALSE); REGEX_TESTLM("b+", "", FALSE, FALSE); REGEX_TESTLM("(abc|def)+", "defabc", TRUE, TRUE); REGEX_TESTLM(".+y", "zippity dooy dah ", TRUE, FALSE); REGEX_TESTLM(".+y", "zippity dooy", TRUE, TRUE); // // ? // REGEX_TESTLM("ab?", "ab", TRUE, TRUE); REGEX_TESTLM("ab?", "a", TRUE, TRUE); REGEX_TESTLM("ab?", "ac", TRUE, FALSE); REGEX_TESTLM("ab?", "abb", TRUE, FALSE); REGEX_TESTLM("a(b|c)?d", "abd", TRUE, TRUE); REGEX_TESTLM("a(b|c)?d", "acd", TRUE, TRUE); REGEX_TESTLM("a(b|c)?d", "ad", TRUE, TRUE); REGEX_TESTLM("a(b|c)?d", "abcd", FALSE, FALSE); REGEX_TESTLM("a(b|c)?d", "ab", FALSE, FALSE); // // Escape sequences that become single literal chars, handled internally // by ICU's Unescape. // // REGEX_TESTLM("\101\142", "Ab", TRUE, TRUE); // Octal TODO: not implemented yet. REGEX_TESTLM("\\a", "\\u0007", TRUE, TRUE); // BEL REGEX_TESTLM("\\cL", "\\u000c", TRUE, TRUE); // Control-L REGEX_TESTLM("\\e", "\\u001b", TRUE, TRUE); // Escape REGEX_TESTLM("\\f", "\\u000c", TRUE, TRUE); // Form Feed REGEX_TESTLM("\\n", "\\u000a", TRUE, TRUE); // new line REGEX_TESTLM("\\r", "\\u000d", TRUE, TRUE); // CR REGEX_TESTLM("\\t", "\\u0009", TRUE, TRUE); // Tab REGEX_TESTLM("\\u1234", "\\u1234", TRUE, TRUE); REGEX_TESTLM("\\U00001234", "\\u1234", TRUE, TRUE); REGEX_TESTLM(".*\\Ax", "xyz", TRUE, FALSE); // \A matches only at the beginning of input REGEX_TESTLM(".*\\Ax", " xyz", FALSE, FALSE); // \A matches only at the beginning of input // Escape of special chars in patterns REGEX_TESTLM("\\\\\\|\\(\\)\\[\\{\\~\\$\\*\\+\\?\\.", "\\\\|()[{~$*+?.", TRUE, TRUE); } //--------------------------------------------------------------------------- // // API_Match Test that the API for class RegexMatcher // is present and nominally working, but excluding functions // implementing replace operations. // //--------------------------------------------------------------------------- void RegexTest::API_Match() { UParseError pe; UErrorCode status=U_ZERO_ERROR; int32_t flags = 0; // // Debug - slide failing test cases early // #if 0 { } return; #endif // // Simple pattern compilation // { UnicodeString re("abc"); RegexPattern *pat2; pat2 = RegexPattern::compile(re, flags, pe, status); REGEX_CHECK_STATUS; UnicodeString inStr1 = "abcdef this is a test"; UnicodeString instr2 = "not abc"; UnicodeString empty = ""; // // Matcher creation and reset. // RegexMatcher *m1 = pat2->matcher(inStr1, status); REGEX_CHECK_STATUS; REGEX_ASSERT(m1->lookingAt(status) == TRUE); REGEX_ASSERT(m1->input() == inStr1); m1->reset(instr2); REGEX_ASSERT(m1->lookingAt(status) == FALSE); REGEX_ASSERT(m1->input() == instr2); m1->reset(inStr1); REGEX_ASSERT(m1->input() == inStr1); REGEX_ASSERT(m1->lookingAt(status) == TRUE); m1->reset(empty); REGEX_ASSERT(m1->lookingAt(status) == FALSE); REGEX_ASSERT(m1->input() == empty); REGEX_ASSERT(&m1->pattern() == pat2); // // reset(pos, status) // m1->reset(inStr1); m1->reset(4, status); REGEX_CHECK_STATUS; REGEX_ASSERT(m1->input() == inStr1); REGEX_ASSERT(m1->lookingAt(status) == TRUE); m1->reset(-1, status); REGEX_ASSERT(status == U_INDEX_OUTOFBOUNDS_ERROR); status = U_ZERO_ERROR; m1->reset(0, status); REGEX_CHECK_STATUS; status = U_ZERO_ERROR; int32_t len = m1->input().length(); m1->reset(len-1, status); REGEX_CHECK_STATUS; status = U_ZERO_ERROR; m1->reset(len, status); REGEX_ASSERT(status == U_INDEX_OUTOFBOUNDS_ERROR); status = U_ZERO_ERROR; // // match(pos, status) // m1->reset(instr2); REGEX_ASSERT(m1->matches(4, status) == TRUE); m1->reset(); REGEX_ASSERT(m1->matches(3, status) == FALSE); m1->reset(); REGEX_ASSERT(m1->matches(5, status) == FALSE); REGEX_ASSERT(m1->matches(4, status) == TRUE); REGEX_ASSERT(m1->matches(-1, status) == FALSE); REGEX_ASSERT(status == U_INDEX_OUTOFBOUNDS_ERROR); // Match() at end of string should fail, but should not // be an error. status = U_ZERO_ERROR; len = m1->input().length(); REGEX_ASSERT(m1->matches(len, status) == FALSE); REGEX_CHECK_STATUS; // Match beyond end of string should fail with an error. status = U_ZERO_ERROR; REGEX_ASSERT(m1->matches(len+1, status) == FALSE); REGEX_ASSERT(status == U_INDEX_OUTOFBOUNDS_ERROR); // Successful match at end of string. { status = U_ZERO_ERROR; RegexMatcher m("A?", 0, status); // will match zero length string. REGEX_CHECK_STATUS; m.reset(inStr1); len = inStr1.length(); REGEX_ASSERT(m.matches(len, status) == TRUE); REGEX_CHECK_STATUS; m.reset(empty); REGEX_ASSERT(m.matches(0, status) == TRUE); REGEX_CHECK_STATUS; } // // lookingAt(pos, status) // status = U_ZERO_ERROR; m1->reset(instr2); // "not abc" REGEX_ASSERT(m1->lookingAt(4, status) == TRUE); REGEX_ASSERT(m1->lookingAt(5, status) == FALSE); REGEX_ASSERT(m1->lookingAt(3, status) == FALSE); REGEX_ASSERT(m1->lookingAt(4, status) == TRUE); REGEX_ASSERT(m1->lookingAt(-1, status) == FALSE); REGEX_ASSERT(status == U_INDEX_OUTOFBOUNDS_ERROR); status = U_ZERO_ERROR; len = m1->input().length(); REGEX_ASSERT(m1->lookingAt(len, status) == FALSE); REGEX_CHECK_STATUS; REGEX_ASSERT(m1->lookingAt(len+1, status) == FALSE); REGEX_ASSERT(status == U_INDEX_OUTOFBOUNDS_ERROR); delete m1; delete pat2; } // // Capture Group. // RegexMatcher::start(); // RegexMatcher::end(); // RegexMatcher::groupCount(); // { int32_t flags=0; UParseError pe; UErrorCode status=U_ZERO_ERROR; UnicodeString re("01(23(45)67)(.*)"); RegexPattern *pat = RegexPattern::compile(re, flags, pe, status); REGEX_CHECK_STATUS; UnicodeString data = "0123456789"; RegexMatcher *matcher = pat->matcher(data, status); REGEX_CHECK_STATUS; REGEX_ASSERT(matcher->lookingAt(status) == TRUE); static const int32_t matchStarts[] = {0, 2, 4, 8}; static const int32_t matchEnds[] = {10, 8, 6, 10}; int32_t i; for (i=0; i<4; i++) { int32_t actualStart = matcher->start(i, status); REGEX_CHECK_STATUS; if (actualStart != matchStarts[i]) { errln("RegexTest failure at line %d, index %d. Expected %d, got %d\n", __LINE__, i, matchStarts[i], actualStart); } int32_t actualEnd = matcher->end(i, status); REGEX_CHECK_STATUS; if (actualEnd != matchEnds[i]) { errln("RegexTest failure at line %d index %d. Expected %d, got %d\n", __LINE__, i, matchEnds[i], actualEnd); } } REGEX_ASSERT(matcher->start(0, status) == matcher->start(status)); REGEX_ASSERT(matcher->end(0, status) == matcher->end(status)); REGEX_ASSERT_FAIL(matcher->start(-1, status), U_INDEX_OUTOFBOUNDS_ERROR); REGEX_ASSERT_FAIL(matcher->start( 4, status), U_INDEX_OUTOFBOUNDS_ERROR); matcher->reset(); REGEX_ASSERT_FAIL(matcher->start( 0, status), U_REGEX_INVALID_STATE); matcher->lookingAt(status); REGEX_ASSERT(matcher->group(status) == "0123456789"); REGEX_ASSERT(matcher->group(0, status) == "0123456789"); REGEX_ASSERT(matcher->group(1, status) == "234567" ); REGEX_ASSERT(matcher->group(2, status) == "45" ); REGEX_ASSERT(matcher->group(3, status) == "89" ); REGEX_CHECK_STATUS; REGEX_ASSERT_FAIL(matcher->group(-1, status), U_INDEX_OUTOFBOUNDS_ERROR); REGEX_ASSERT_FAIL(matcher->group( 4, status), U_INDEX_OUTOFBOUNDS_ERROR); matcher->reset(); REGEX_ASSERT_FAIL(matcher->group( 0, status), U_REGEX_INVALID_STATE); delete matcher; delete pat; } // // find // { int32_t flags=0; UParseError pe; UErrorCode status=U_ZERO_ERROR; UnicodeString re("abc"); RegexPattern *pat = RegexPattern::compile(re, flags, pe, status); REGEX_CHECK_STATUS; UnicodeString data = ".abc..abc...abc.."; // 012345678901234567 RegexMatcher *matcher = pat->matcher(data, status); REGEX_CHECK_STATUS; REGEX_ASSERT(matcher->find()); REGEX_ASSERT(matcher->start(status) == 1); REGEX_ASSERT(matcher->find()); REGEX_ASSERT(matcher->start(status) == 6); REGEX_ASSERT(matcher->find()); REGEX_ASSERT(matcher->start(status) == 12); REGEX_ASSERT(matcher->find() == FALSE); REGEX_ASSERT(matcher->find() == FALSE); matcher->reset(); REGEX_ASSERT(matcher->find()); REGEX_ASSERT(matcher->start(status) == 1); REGEX_ASSERT(matcher->find(0, status)); REGEX_ASSERT(matcher->start(status) == 1); REGEX_ASSERT(matcher->find(1, status)); REGEX_ASSERT(matcher->start(status) == 1); REGEX_ASSERT(matcher->find(2, status)); REGEX_ASSERT(matcher->start(status) == 6); REGEX_ASSERT(matcher->find(12, status)); REGEX_ASSERT(matcher->start(status) == 12); REGEX_ASSERT(matcher->find(13, status) == FALSE); REGEX_ASSERT(matcher->find(16, status) == FALSE); REGEX_ASSERT(matcher->find(17, status) == FALSE); REGEX_ASSERT_FAIL(matcher->start(status), U_REGEX_INVALID_STATE); status = U_ZERO_ERROR; REGEX_ASSERT_FAIL(matcher->find(-1, status), U_INDEX_OUTOFBOUNDS_ERROR); status = U_ZERO_ERROR; REGEX_ASSERT_FAIL(matcher->find(18, status), U_INDEX_OUTOFBOUNDS_ERROR); REGEX_ASSERT(matcher->groupCount() == 0); delete matcher; delete pat; } // // find, with \G in pattern (true if at the end of a previous match). // { int32_t flags=0; UParseError pe; UErrorCode status=U_ZERO_ERROR; UnicodeString re(".*?(?:(\\Gabc)|(abc))"); RegexPattern *pat = RegexPattern::compile(re, flags, pe, status); REGEX_CHECK_STATUS; UnicodeString data = ".abcabc.abc.."; // 012345678901234567 RegexMatcher *matcher = pat->matcher(data, status); REGEX_CHECK_STATUS; REGEX_ASSERT(matcher->find()); REGEX_ASSERT(matcher->start(status) == 0); REGEX_ASSERT(matcher->start(1, status) == -1); REGEX_ASSERT(matcher->start(2, status) == 1); REGEX_ASSERT(matcher->find()); REGEX_ASSERT(matcher->start(status) == 4); REGEX_ASSERT(matcher->start(1, status) == 4); REGEX_ASSERT(matcher->start(2, status) == -1); REGEX_CHECK_STATUS; delete matcher; delete pat; } // // find with zero length matches, match position should bump ahead // to prevent loops. // { int32_t i; UErrorCode status=U_ZERO_ERROR; RegexMatcher m("(?= ?)", 0, status); // This pattern will zero-length matches anywhere, // using an always-true look-ahead. REGEX_CHECK_STATUS; UnicodeString s(" "); m.reset(s); for (i=0; ; i++) { if (m.find() == FALSE) { break; } REGEX_ASSERT(m.start(status) == i); REGEX_ASSERT(m.end(status) == i); } REGEX_ASSERT(i==5); // Check that the bump goes over surrogate pairs OK s = "\\U00010001\\U00010002\\U00010003\\U00010004"; s = s.unescape(); m.reset(s); for (i=0; ; i+=2) { if (m.find() == FALSE) { break; } REGEX_ASSERT(m.start(status) == i); REGEX_ASSERT(m.end(status) == i); } REGEX_ASSERT(i==10); } { // find() loop breaking test. // with pattern of /.?/, should see a series of one char matches, then a single // match of zero length at the end of the input string. int32_t i; UErrorCode status=U_ZERO_ERROR; RegexMatcher m(".?", 0, status); REGEX_CHECK_STATUS; UnicodeString s(" "); m.reset(s); for (i=0; ; i++) { if (m.find() == FALSE) { break; } REGEX_ASSERT(m.start(status) == i); REGEX_ASSERT(m.end(status) == (i<4 ? i+1 : i)); } REGEX_ASSERT(i==5); } // // Matchers with no input string behave as if they had an empty input string. // { UErrorCode status = U_ZERO_ERROR; RegexMatcher m(".?", 0, status); REGEX_CHECK_STATUS; REGEX_ASSERT(m.find()); REGEX_ASSERT(m.start(status) == 0); REGEX_ASSERT(m.input() == ""); } { UErrorCode status = U_ZERO_ERROR; RegexPattern *p = RegexPattern::compile(".", 0, status); RegexMatcher *m = p->matcher(status); REGEX_CHECK_STATUS; REGEX_ASSERT(m->find() == FALSE); REGEX_ASSERT(m->input() == ""); delete m; delete p; } // // Compilation error on reset with UChar * // These were a hazard that people were stumbling over with runtime errors. // Changed them to compiler errors by adding private methods that more closely // matched the incorrect use of the functions. // #if 0 { UErrorCode status = U_ZERO_ERROR; UChar ucharString[20]; RegexMatcher m(".", 0, status); m.reset(ucharString); // should not compile. RegexPattern *p = RegexPattern::compile(".", 0, status); RegexMatcher *m2 = p->matcher(ucharString, status); // should not compile. RegexMatcher m3(".", ucharString, 0, status); // Should not compile } #endif } //--------------------------------------------------------------------------- // // API_Replace API test for class RegexMatcher, testing the // Replace family of functions. // //--------------------------------------------------------------------------- void RegexTest::API_Replace() { // // Replace // int32_t flags=0; UParseError pe; UErrorCode status=U_ZERO_ERROR; UnicodeString re("abc"); RegexPattern *pat = RegexPattern::compile(re, flags, pe, status); REGEX_CHECK_STATUS; UnicodeString data = ".abc..abc...abc.."; // 012345678901234567 RegexMatcher *matcher = pat->matcher(data, status); // // Plain vanilla matches. // UnicodeString dest; dest = matcher->replaceFirst("yz", status); REGEX_CHECK_STATUS; REGEX_ASSERT(dest == ".yz..abc...abc.."); dest = matcher->replaceAll("yz", status); REGEX_CHECK_STATUS; REGEX_ASSERT(dest == ".yz..yz...yz.."); // // Plain vanilla non-matches. // UnicodeString d2 = ".abx..abx...abx.."; matcher->reset(d2); dest = matcher->replaceFirst("yz", status); REGEX_CHECK_STATUS; REGEX_ASSERT(dest == ".abx..abx...abx.."); dest = matcher->replaceAll("yz", status); REGEX_CHECK_STATUS; REGEX_ASSERT(dest == ".abx..abx...abx.."); // // Empty source string // UnicodeString d3 = ""; matcher->reset(d3); dest = matcher->replaceFirst("yz", status); REGEX_CHECK_STATUS; REGEX_ASSERT(dest == ""); dest = matcher->replaceAll("yz", status); REGEX_CHECK_STATUS; REGEX_ASSERT(dest == ""); // // Empty substitution string // matcher->reset(data); // ".abc..abc...abc.." dest = matcher->replaceFirst("", status); REGEX_CHECK_STATUS; REGEX_ASSERT(dest == "...abc...abc.."); dest = matcher->replaceAll("", status); REGEX_CHECK_STATUS; REGEX_ASSERT(dest == "........"); // // match whole string // UnicodeString d4 = "abc"; matcher->reset(d4); dest = matcher->replaceFirst("xyz", status); REGEX_CHECK_STATUS; REGEX_ASSERT(dest == "xyz"); dest = matcher->replaceAll("xyz", status); REGEX_CHECK_STATUS; REGEX_ASSERT(dest == "xyz"); // // Capture Group, simple case // UnicodeString re2("a(..)"); RegexPattern *pat2 = RegexPattern::compile(re2, flags, pe, status); REGEX_CHECK_STATUS; UnicodeString d5 = "abcdefg"; RegexMatcher *matcher2 = pat2->matcher(d5, status); REGEX_CHECK_STATUS; dest = matcher2->replaceFirst("$1$1", status); REGEX_CHECK_STATUS; REGEX_ASSERT(dest == "bcbcdefg"); dest = matcher2->replaceFirst("The value of \\$1 is $1.", status); REGEX_CHECK_STATUS; REGEX_ASSERT(dest == "The value of $1 is bc.defg"); dest = matcher2->replaceFirst("$ by itself, no group number $$$", status); REGEX_CHECK_STATUS; REGEX_ASSERT(dest == "$ by itself, no group number $$$defg"); UnicodeString replacement = "Supplemental Digit 1 $\\U0001D7CF."; replacement = replacement.unescape(); dest = matcher2->replaceFirst(replacement, status); REGEX_CHECK_STATUS; REGEX_ASSERT(dest == "Supplemental Digit 1 bc.defg"); REGEX_ASSERT_FAIL(matcher2->replaceFirst("bad capture group number $5...",status), U_INDEX_OUTOFBOUNDS_ERROR); // // Replacement String with \u hex escapes // { UnicodeString src = "abc 1 abc 2 abc 3"; UnicodeString substitute = "--\\u0043--"; matcher->reset(src); UnicodeString result = matcher->replaceAll(substitute, status); REGEX_CHECK_STATUS; REGEX_ASSERT(result == "--C-- 1 --C-- 2 --C-- 3"); } { UnicodeString src = "abc !"; UnicodeString substitute = "--\\U00010000--"; matcher->reset(src); UnicodeString result = matcher->replaceAll(substitute, status); REGEX_CHECK_STATUS; UnicodeString expected = UnicodeString("--"); expected.append((UChar32)0x10000); expected.append("-- !"); REGEX_ASSERT(result == expected); } // TODO: need more through testing of capture substitutions. // Bug 4057 // { status = U_ZERO_ERROR; UnicodeString s = "The matches start with ss and end with ee ss stuff ee fin"; RegexMatcher m("ss(.*?)ee", 0, status); REGEX_CHECK_STATUS; UnicodeString result; // Multiple finds do NOT bump up the previous appendReplacement postion. m.reset(s); m.find(); m.find(); m.appendReplacement(result, "ooh", status); REGEX_CHECK_STATUS; REGEX_ASSERT(result == "The matches start with ss and end with ee ooh"); // After a reset into the interior of a string, appendReplacemnt still starts at beginning. status = U_ZERO_ERROR; result.truncate(0); m.reset(10, status); m.find(); m.find(); m.appendReplacement(result, "ooh", status); REGEX_CHECK_STATUS; REGEX_ASSERT(result == "The matches start with ss and end with ee ooh"); // find() at interior of string, appendReplacemnt still starts at beginning. status = U_ZERO_ERROR; result.truncate(0); m.reset(); m.find(10, status); m.find(); m.appendReplacement(result, "ooh", status); REGEX_CHECK_STATUS; REGEX_ASSERT(result == "The matches start with ss and end with ee ooh"); m.appendTail(result); REGEX_ASSERT(result == "The matches start with ss and end with ee ooh fin"); } delete matcher2; delete pat2; delete matcher; delete pat; } //--------------------------------------------------------------------------- // // API_Pattern Test that the API for class RegexPattern is // present and nominally working. // //--------------------------------------------------------------------------- void RegexTest::API_Pattern() { RegexPattern pata; // Test default constructor to not crash. RegexPattern patb; REGEX_ASSERT(pata == patb); REGEX_ASSERT(pata == pata); UnicodeString re1("abc[a-l][m-z]"); UnicodeString re2("def"); UErrorCode status = U_ZERO_ERROR; UParseError pe; RegexPattern *pat1 = RegexPattern::compile(re1, 0, pe, status); RegexPattern *pat2 = RegexPattern::compile(re2, 0, pe, status); REGEX_CHECK_STATUS; REGEX_ASSERT(*pat1 == *pat1); REGEX_ASSERT(*pat1 != pata); // Assign patb = *pat1; REGEX_ASSERT(patb == *pat1); // Copy Construct RegexPattern patc(*pat1); REGEX_ASSERT(patc == *pat1); REGEX_ASSERT(patb == patc); REGEX_ASSERT(pat1 != pat2); patb = *pat2; REGEX_ASSERT(patb != patc); REGEX_ASSERT(patb == *pat2); // Compile with no flags. RegexPattern *pat1a = RegexPattern::compile(re1, pe, status); REGEX_ASSERT(*pat1a == *pat1); REGEX_ASSERT(pat1a->flags() == 0); // Compile with different flags should be not equal RegexPattern *pat1b = RegexPattern::compile(re1, UREGEX_CASE_INSENSITIVE, pe, status); REGEX_CHECK_STATUS; REGEX_ASSERT(*pat1b != *pat1a); REGEX_ASSERT(pat1b->flags() == UREGEX_CASE_INSENSITIVE); REGEX_ASSERT(pat1a->flags() == 0); delete pat1b; // clone RegexPattern *pat1c = pat1->clone(); REGEX_ASSERT(*pat1c == *pat1); REGEX_ASSERT(*pat1c != *pat2); delete pat1c; delete pat1a; delete pat1; delete pat2; // // Verify that a matcher created from a cloned pattern works. // (Jitterbug 3423) // { UErrorCode status = U_ZERO_ERROR; RegexPattern *pSource = RegexPattern::compile("\\p{L}+", 0, status); RegexPattern *pClone = pSource->clone(); delete pSource; RegexMatcher *mFromClone = pClone->matcher(status); REGEX_CHECK_STATUS; UnicodeString s = "Hello World"; mFromClone->reset(s); REGEX_ASSERT(mFromClone->find() == TRUE); REGEX_ASSERT(mFromClone->group(status) == "Hello"); REGEX_ASSERT(mFromClone->find() == TRUE); REGEX_ASSERT(mFromClone->group(status) == "World"); REGEX_ASSERT(mFromClone->find() == FALSE); delete mFromClone; delete pClone; } // // matches convenience API // REGEX_ASSERT(RegexPattern::matches(".*", "random input", pe, status) == TRUE); REGEX_CHECK_STATUS; REGEX_ASSERT(RegexPattern::matches("abc", "random input", pe, status) == FALSE); REGEX_CHECK_STATUS; REGEX_ASSERT(RegexPattern::matches(".*nput", "random input", pe, status) == TRUE); REGEX_CHECK_STATUS; REGEX_ASSERT(RegexPattern::matches("random input", "random input", pe, status) == TRUE); REGEX_CHECK_STATUS; REGEX_ASSERT(RegexPattern::matches(".*u", "random input", pe, status) == FALSE); REGEX_CHECK_STATUS; status = U_INDEX_OUTOFBOUNDS_ERROR; REGEX_ASSERT(RegexPattern::matches("abc", "abc", pe, status) == FALSE); REGEX_ASSERT(status == U_INDEX_OUTOFBOUNDS_ERROR); // // Split() // status = U_ZERO_ERROR; pat1 = RegexPattern::compile(" +", pe, status); REGEX_CHECK_STATUS; UnicodeString fields[10]; int32_t n; n = pat1->split("Now is the time", fields, 10, status); REGEX_CHECK_STATUS; REGEX_ASSERT(n==4); REGEX_ASSERT(fields[0]=="Now"); REGEX_ASSERT(fields[1]=="is"); REGEX_ASSERT(fields[2]=="the"); REGEX_ASSERT(fields[3]=="time"); REGEX_ASSERT(fields[4]==""); n = pat1->split("Now is the time", fields, 2, status); REGEX_CHECK_STATUS; REGEX_ASSERT(n==2); REGEX_ASSERT(fields[0]=="Now"); REGEX_ASSERT(fields[1]=="is the time"); REGEX_ASSERT(fields[2]=="the"); // left over from previous test fields[1] = "*"; status = U_ZERO_ERROR; n = pat1->split("Now is the time", fields, 1, status); REGEX_CHECK_STATUS; REGEX_ASSERT(n==1); REGEX_ASSERT(fields[0]=="Now is the time"); REGEX_ASSERT(fields[1]=="*"); status = U_ZERO_ERROR; n = pat1->split(" Now is the time ", fields, 10, status); REGEX_CHECK_STATUS; REGEX_ASSERT(n==5); REGEX_ASSERT(fields[0]==""); REGEX_ASSERT(fields[1]=="Now"); REGEX_ASSERT(fields[2]=="is"); REGEX_ASSERT(fields[3]=="the"); REGEX_ASSERT(fields[4]=="time"); REGEX_ASSERT(fields[5]==""); n = pat1->split(" ", fields, 10, status); REGEX_CHECK_STATUS; REGEX_ASSERT(n==1); REGEX_ASSERT(fields[0]==""); fields[0] = "foo"; n = pat1->split("", fields, 10, status); REGEX_CHECK_STATUS; REGEX_ASSERT(n==0); REGEX_ASSERT(fields[0]=="foo"); delete pat1; // split, with a pattern with (capture) pat1 = RegexPattern::compile("<(\\w*)>", pe, status); REGEX_CHECK_STATUS; status = U_ZERO_ERROR; n = pat1->split("Now is the time", fields, 10, status); REGEX_CHECK_STATUS; REGEX_ASSERT(n==6); REGEX_ASSERT(fields[0]==""); REGEX_ASSERT(fields[1]=="a"); REGEX_ASSERT(fields[2]=="Now is "); REGEX_ASSERT(fields[3]=="b"); REGEX_ASSERT(fields[4]=="the time"); REGEX_ASSERT(fields[5]=="c"); REGEX_ASSERT(fields[6]==""); REGEX_ASSERT(status==U_ZERO_ERROR); n = pat1->split(" Now is the time", fields, 10, status); REGEX_CHECK_STATUS; REGEX_ASSERT(n==6); REGEX_ASSERT(fields[0]==" "); REGEX_ASSERT(fields[1]=="a"); REGEX_ASSERT(fields[2]=="Now is "); REGEX_ASSERT(fields[3]=="b"); REGEX_ASSERT(fields[4]=="the time"); REGEX_ASSERT(fields[5]=="c"); REGEX_ASSERT(fields[6]==""); status = U_ZERO_ERROR; fields[6] = "foo"; n = pat1->split(" Now is the time", fields, 6, status); REGEX_CHECK_STATUS; REGEX_ASSERT(n==6); REGEX_ASSERT(fields[0]==" "); REGEX_ASSERT(fields[1]=="a"); REGEX_ASSERT(fields[2]=="Now is "); REGEX_ASSERT(fields[3]=="b"); REGEX_ASSERT(fields[4]=="the time"); REGEX_ASSERT(fields[5]=="c"); REGEX_ASSERT(fields[6]=="foo"); status = U_ZERO_ERROR; fields[5] = "foo"; n = pat1->split(" Now is the time", fields, 5, status); REGEX_CHECK_STATUS; REGEX_ASSERT(n==5); REGEX_ASSERT(fields[0]==" "); REGEX_ASSERT(fields[1]=="a"); REGEX_ASSERT(fields[2]=="Now is "); REGEX_ASSERT(fields[3]=="b"); REGEX_ASSERT(fields[4]=="the time"); REGEX_ASSERT(fields[5]=="foo"); status = U_ZERO_ERROR; fields[5] = "foo"; n = pat1->split(" Now is the time", fields, 5, status); REGEX_CHECK_STATUS; REGEX_ASSERT(n==5); REGEX_ASSERT(fields[0]==" "); REGEX_ASSERT(fields[1]=="a"); REGEX_ASSERT(fields[2]=="Now is "); REGEX_ASSERT(fields[3]=="b"); REGEX_ASSERT(fields[4]=="the time"); REGEX_ASSERT(fields[5]=="foo"); status = U_ZERO_ERROR; n = pat1->split(" Now is the time", fields, 4, status); REGEX_CHECK_STATUS; REGEX_ASSERT(n==4); REGEX_ASSERT(fields[0]==" "); REGEX_ASSERT(fields[1]=="a"); REGEX_ASSERT(fields[2]=="Now is "); REGEX_ASSERT(fields[3]=="the time"); status = U_ZERO_ERROR; delete pat1; pat1 = RegexPattern::compile("([-,])", pe, status); REGEX_CHECK_STATUS; n = pat1->split("1-10,20", fields, 10, status); REGEX_CHECK_STATUS; REGEX_ASSERT(n==5); REGEX_ASSERT(fields[0]=="1"); REGEX_ASSERT(fields[1]=="-"); REGEX_ASSERT(fields[2]=="10"); REGEX_ASSERT(fields[3]==","); REGEX_ASSERT(fields[4]=="20"); delete pat1; // // RegexPattern::pattern() // pat1 = new RegexPattern(); REGEX_ASSERT(pat1->pattern() == ""); delete pat1; pat1 = RegexPattern::compile("(Hello, world)*", pe, status); REGEX_CHECK_STATUS; REGEX_ASSERT(pat1->pattern() == "(Hello, world)*"); delete pat1; // // classID functions // pat1 = RegexPattern::compile("(Hello, world)*", pe, status); REGEX_CHECK_STATUS; REGEX_ASSERT(pat1->getDynamicClassID() == RegexPattern::getStaticClassID()); REGEX_ASSERT(pat1->getDynamicClassID() != NULL); UnicodeString Hello("Hello, world."); RegexMatcher *m = pat1->matcher(Hello, status); REGEX_ASSERT(pat1->getDynamicClassID() != m->getDynamicClassID()); REGEX_ASSERT(m->getDynamicClassID() == RegexMatcher::getStaticClassID()); REGEX_ASSERT(m->getDynamicClassID() != NULL); delete m; delete pat1; } //--------------------------------------------------------------------------- // // Extended A more thorough check for features of regex patterns // The test cases are in a separate data file, // source/tests/testdata/regextst.txt // A description of the test data format is included in that file. // //--------------------------------------------------------------------------- const char * RegexTest::getPath(char buffer[2048], const char *filename) { UErrorCode status=U_ZERO_ERROR; const char *testDataDirectory = IntlTest::getSourceTestData(status); if (U_FAILURE(status)) { errln("ERROR: loadTestData() failed - %s", u_errorName(status)); return NULL; } strcpy(buffer, testDataDirectory); strcat(buffer, filename); return buffer; } void RegexTest::Extended() { char tdd[2048]; const char *srcPath; UErrorCode status = U_ZERO_ERROR; int32_t lineNum = 0; // // Open and read the test data file. // srcPath=getPath(tdd, "regextst.txt"); if(srcPath==NULL) { return; /* something went wrong, error already output */ } int32_t len; UChar *testData = ReadAndConvertFile(srcPath, len, status); if (U_FAILURE(status)) { return; /* something went wrong, error already output */ } // // Put the test data into a UnicodeString // UnicodeString testString(FALSE, testData, len); RegexMatcher quotedStuffMat("\\s*([\\'\\\"/])(.*?)\\1", 0, status); RegexMatcher commentMat ("\\s*(#.*)?$", 0, status); RegexMatcher flagsMat ("\\s*([ixsmdtGv2-9]*)([:letter:]*)", 0, status); RegexMatcher lineMat("(.*?)\\r?\\n", testString, 0, status); UnicodeString testPattern; // The pattern for test from the test file. UnicodeString testFlags; // the flags for a test. UnicodeString matchString; // The marked up string to be used as input if (U_FAILURE(status)){ dataerrln("Construct RegexMatcher() error."); delete [] testData; return; } // // Loop over the test data file, once per line. // while (lineMat.find()) { lineNum++; if (U_FAILURE(status)) { errln("line %d: ICU Error \"%s\"", lineNum, u_errorName(status)); } status = U_ZERO_ERROR; UnicodeString testLine = lineMat.group(1, status); if (testLine.length() == 0) { continue; } // // Parse the test line. Skip blank and comment only lines. // Separate out the three main fields - pattern, flags, target. // commentMat.reset(testLine); if (commentMat.lookingAt(status)) { // This line is a comment, or blank. continue; } // // Pull out the pattern field, remove it from the test file line. // quotedStuffMat.reset(testLine); if (quotedStuffMat.lookingAt(status)) { testPattern = quotedStuffMat.group(2, status); testLine.remove(0, quotedStuffMat.end(0, status)); } else { errln("Bad pattern (missing quotes?) at test file line %d", lineNum); continue; } // // Pull out the flags from the test file line. // flagsMat.reset(testLine); flagsMat.lookingAt(status); // Will always match, possibly an empty string. testFlags = flagsMat.group(1, status); if (flagsMat.group(2, status).length() > 0) { errln("Bad Match flag at line %d. Scanning %c\n", lineNum, flagsMat.group(2, status).charAt(0)); continue; } testLine.remove(0, flagsMat.end(0, status)); // // Pull out the match string, as a whole. // We'll process the later. // quotedStuffMat.reset(testLine); if (quotedStuffMat.lookingAt(status)) { matchString = quotedStuffMat.group(2, status); testLine.remove(0, quotedStuffMat.end(0, status)); } else { errln("Bad match string at test file line %d", lineNum); continue; } // // The only thing left from the input line should be an optional trailing comment. // commentMat.reset(testLine); if (commentMat.lookingAt(status) == FALSE) { errln("Line %d: unexpected characters at end of test line.", lineNum); continue; } // // Run the test // regex_find(testPattern, testFlags, matchString, lineNum); } delete [] testData; } //--------------------------------------------------------------------------- // // Errors Check for error handling in patterns. // //--------------------------------------------------------------------------- void RegexTest::Errors() { // \escape sequences that aren't implemented yet. //REGEX_ERR("hex format \\x{abcd} not implemented", 1, 13, U_REGEX_UNIMPLEMENTED); // Missing close parentheses REGEX_ERR("Comment (?# with no close", 1, 25, U_REGEX_MISMATCHED_PAREN); REGEX_ERR("Capturing Parenthesis(...", 1, 25, U_REGEX_MISMATCHED_PAREN); REGEX_ERR("Grouping only parens (?: blah blah", 1, 34, U_REGEX_MISMATCHED_PAREN); // Extra close paren REGEX_ERR("Grouping only parens (?: blah)) blah", 1, 31, U_REGEX_MISMATCHED_PAREN); REGEX_ERR(")))))))", 1, 1, U_REGEX_MISMATCHED_PAREN); REGEX_ERR("(((((((", 1, 7, U_REGEX_MISMATCHED_PAREN); // Look-ahead, Look-behind // TODO: add tests for unbounded length look-behinds. REGEX_ERR("abc(?<@xyz).*", 1, 7, U_REGEX_RULE_SYNTAX); // illegal construct // Attempt to use non-default flags { UParseError pe; UErrorCode status = U_ZERO_ERROR; int32_t flags = UREGEX_CANON_EQ | UREGEX_COMMENTS | UREGEX_DOTALL | UREGEX_MULTILINE; RegexPattern *pat1= RegexPattern::compile(".*", flags, pe, status); REGEX_ASSERT(status == U_REGEX_UNIMPLEMENTED); delete pat1; } // Quantifiers are allowed only after something that can be quantified. REGEX_ERR("+", 1, 1, U_REGEX_RULE_SYNTAX); REGEX_ERR("abc\ndef(*2)", 2, 5, U_REGEX_RULE_SYNTAX); REGEX_ERR("abc**", 1, 5, U_REGEX_RULE_SYNTAX); // Mal-formed {min,max} quantifiers REGEX_ERR("abc{a,2}",1,5, U_REGEX_BAD_INTERVAL); REGEX_ERR("abc{4,2}",1,8, U_REGEX_MAX_LT_MIN); REGEX_ERR("abc{1,b}",1,7, U_REGEX_BAD_INTERVAL); REGEX_ERR("abc{1,,2}",1,7, U_REGEX_BAD_INTERVAL); REGEX_ERR("abc{1,2a}",1,8, U_REGEX_BAD_INTERVAL); REGEX_ERR("abc{222222222222222222222}",1,14, U_REGEX_NUMBER_TOO_BIG); REGEX_ERR("abc{5,50000000000}", 1, 17, U_REGEX_NUMBER_TOO_BIG); // Overflows int during scan REGEX_ERR("abc{5,687865858}", 1, 16, U_REGEX_NUMBER_TOO_BIG); // Overflows regex binary format REGEX_ERR("abc{687865858,687865859}", 1, 24, U_REGEX_NUMBER_TOO_BIG); // UnicodeSet containing a string REGEX_ERR("abc[{def}]xyz", 1, 10, U_REGEX_SET_CONTAINS_STRING); // Ticket 5389 REGEX_ERR("*c", 1, 1, U_REGEX_RULE_SYNTAX); } //------------------------------------------------------------------------------- // // Read a text data file, convert it to UChars, and return the data // in one big UChar * buffer, which the caller must delete. // //-------------------------------------------------------------------------------- UChar *RegexTest::ReadAndConvertFile(const char *fileName, int32_t &ulen, UErrorCode &status) { UChar *retPtr = NULL; char *fileBuf = NULL; UConverter* conv = NULL; FILE *f = NULL; ulen = 0; if (U_FAILURE(status)) { return retPtr; } // // Open the file. // f = fopen(fileName, "rb"); if (f == 0) { errln("Error opening test data file %s\n", fileName); status = U_FILE_ACCESS_ERROR; return NULL; } // // Read it in // int32_t fileSize; int32_t amt_read; fseek( f, 0, SEEK_END); fileSize = ftell(f); fileBuf = new char[fileSize]; fseek(f, 0, SEEK_SET); amt_read = fread(fileBuf, 1, fileSize, f); if (amt_read != fileSize || fileSize <= 0) { errln("Error reading test data file."); goto cleanUpAndReturn; } // // Look for a Unicode Signature (BOM) on the data just read // int32_t signatureLength; const char * fileBufC; const char* encoding; fileBufC = fileBuf; encoding = ucnv_detectUnicodeSignature( fileBuf, fileSize, &signatureLength, &status); if(encoding!=NULL ){ fileBufC += signatureLength; fileSize -= signatureLength; } // // Open a converter to take the rule file to UTF-16 // conv = ucnv_open(encoding, &status); if (U_FAILURE(status)) { goto cleanUpAndReturn; } // // Convert the rules to UChar. // Preflight first to determine required buffer size. // ulen = ucnv_toUChars(conv, NULL, // dest, 0, // destCapacity, fileBufC, fileSize, &status); if (status == U_BUFFER_OVERFLOW_ERROR) { // Buffer Overflow is expected from the preflight operation. status = U_ZERO_ERROR; retPtr = new UChar[ulen+1]; ucnv_toUChars(conv, retPtr, // dest, ulen+1, fileBufC, fileSize, &status); } cleanUpAndReturn: fclose(f); delete[] fileBuf; ucnv_close(conv); if (U_FAILURE(status)) { errln("ucnv_toUChars: ICU Error \"%s\"\n", u_errorName(status)); delete retPtr; retPtr = 0; ulen = 0; }; return retPtr; } //------------------------------------------------------------------------------- // // PerlTests - Run Perl's regular expression tests // The input file for this test is re_tests, the standard regular // expression test data distributed with the Perl source code. // // Here is Perl's description of the test data file: // // # The tests are in a separate file 't/op/re_tests'. // # Each line in that file is a separate test. // # There are five columns, separated by tabs. // # // # Column 1 contains the pattern, optionally enclosed in C<''>. // # Modifiers can be put after the closing C<'>. // # // # Column 2 contains the string to be matched. // # // # Column 3 contains the expected result: // # y expect a match // # n expect no match // # c expect an error // # B test exposes a known bug in Perl, should be skipped // # b test exposes a known bug in Perl, should be skipped if noamp // # // # Columns 4 and 5 are used only if column 3 contains C or C. // # // # Column 4 contains a string, usually C<$&>. // # // # Column 5 contains the expected result of double-quote // # interpolating that string after the match, or start of error message. // # // # Column 6, if present, contains a reason why the test is skipped. // # This is printed with "skipped", for harness to pick up. // # // # \n in the tests are interpolated, as are variables of the form ${\w+}. // # // # If you want to add a regular expression test that can't be expressed // # in this format, don't add it here: put it in op/pat.t instead. // // For ICU, if field 3 contains an 'i', the test will be skipped. // The test exposes is some known incompatibility between ICU and Perl regexps. // (The i is in addition to whatever was there before.) // //------------------------------------------------------------------------------- void RegexTest::PerlTests() { char tdd[2048]; const char *srcPath; UErrorCode status = U_ZERO_ERROR; UParseError pe; // // Open and read the test data file. // srcPath=getPath(tdd, "re_tests.txt"); if(srcPath==NULL) { return; /* something went wrong, error already output */ } int32_t len; UChar *testData = ReadAndConvertFile(srcPath, len, status); if (U_FAILURE(status)) { return; /* something went wrong, error already output */ } // // Put the test data into a UnicodeString // UnicodeString testDataString(FALSE, testData, len); // // Regex to break the input file into lines, and strip the new lines. // One line per match, capture group one is the desired data. // RegexPattern* linePat = RegexPattern::compile("(.+?)[\\r\\n]+", 0, pe, status); if (U_FAILURE(status)) { dataerrln("RegexPattern::compile() error"); return; } RegexMatcher* lineMat = linePat->matcher(testDataString, status); // // Regex to split a test file line into fields. // There are six fields, separated by tabs. // RegexPattern* fieldPat = RegexPattern::compile("\\t", 0, pe, status); // // Regex to identify test patterns with flag settings, and to separate them. // Test patterns with flags look like 'pattern'i // Test patterns without flags are not quoted: pattern // Coming out, capture group 2 is the pattern, capture group 3 is the flags. // RegexPattern *flagPat = RegexPattern::compile("('?)(.*)\\1(.*)", 0, pe, status); RegexMatcher* flagMat = flagPat->matcher(status); // // The Perl tests reference several perl-isms, which are evaluated/substituted // in the test data. Not being perl, this must be done explicitly. Here // are string constants and REs for these constructs. // UnicodeString nulnulSrc("${nulnul}"); UnicodeString nulnul("\\u0000\\u0000"); nulnul = nulnul.unescape(); UnicodeString ffffSrc("${ffff}"); UnicodeString ffff("\\uffff"); ffff = ffff.unescape(); // regexp for $-[0], $+[2], etc. RegexPattern *groupsPat = RegexPattern::compile("\\$([+\\-])\\[(\\d+)\\]", 0, pe, status); RegexMatcher *groupsMat = groupsPat->matcher(status); // regexp for $0, $1, $2, etc. RegexPattern *cgPat = RegexPattern::compile("\\$(\\d+)", 0, pe, status); RegexMatcher *cgMat = cgPat->matcher(status); // // Main Loop for the Perl Tests, runs once per line from the // test data file. // int32_t lineNum = 0; int32_t skippedUnimplementedCount = 0; while (lineMat->find()) { lineNum++; // // Get a line, break it into its fields, do the Perl // variable substitutions. // UnicodeString line = lineMat->group(1, status); UnicodeString fields[7]; fieldPat->split(line, fields, 7, status); flagMat->reset(fields[0]); flagMat->matches(status); UnicodeString pattern = flagMat->group(2, status); pattern.findAndReplace("${bang}", "!"); pattern.findAndReplace(nulnulSrc, "\\u0000\\u0000"); pattern.findAndReplace(ffffSrc, ffff); // // Identify patterns that include match flag settings, // split off the flags, remove the extra quotes. // UnicodeString flagStr = flagMat->group(3, status); if (U_FAILURE(status)) { errln("ucnv_toUChars: ICU Error \"%s\"\n", u_errorName(status)); return; } int32_t flags = 0; const UChar UChar_c = 0x63; // Char constants for the flag letters. const UChar UChar_i = 0x69; // (Damn the lack of Unicode support in C) const UChar UChar_m = 0x6d; const UChar UChar_x = 0x78; const UChar UChar_y = 0x79; if (flagStr.indexOf(UChar_i) != -1) { flags |= UREGEX_CASE_INSENSITIVE; } if (flagStr.indexOf(UChar_m) != -1) { flags |= UREGEX_MULTILINE; } if (flagStr.indexOf(UChar_x) != -1) { flags |= UREGEX_COMMENTS; } // // Compile the test pattern. // status = U_ZERO_ERROR; RegexPattern *testPat = RegexPattern::compile(pattern, flags, pe, status); if (status == U_REGEX_UNIMPLEMENTED) { // // Test of a feature that is planned for ICU, but not yet implemented. // skip the test. skippedUnimplementedCount++; delete testPat; status = U_ZERO_ERROR; continue; } if (U_FAILURE(status)) { // Some tests are supposed to generate errors. // Only report an error for tests that are supposed to succeed. if (fields[2].indexOf(UChar_c) == -1 && // Compilation is not supposed to fail AND fields[2].indexOf(UChar_i) == -1) // it's not an accepted ICU incompatibility { errln("line %d: ICU Error \"%s\"\n", lineNum, u_errorName(status)); } status = U_ZERO_ERROR; delete testPat; continue; } if (fields[2].indexOf(UChar_i) >= 0) { // ICU should skip this test. delete testPat; continue; } if (fields[2].indexOf(UChar_c) >= 0) { // This pattern should have caused a compilation error, but didn't/ errln("line %d: Expected a pattern compile error, got success.", lineNum); delete testPat; continue; } // // replace the Perl variables that appear in some of the // match data strings. // UnicodeString matchString = fields[1]; matchString.findAndReplace(nulnulSrc, nulnul); matchString.findAndReplace(ffffSrc, ffff); // Replace any \n in the match string with an actual new-line char. // Don't do full unescape, as this unescapes more than Perl does, which // causes other spurious failures in the tests. matchString.findAndReplace("\\n", "\n"); // // Run the test, check for expected match/don't match result. // RegexMatcher *testMat = testPat->matcher(matchString, status); UBool found = testMat->find(); UBool expected = FALSE; if (fields[2].indexOf(UChar_y) >=0) { expected = TRUE; } if (expected != found) { errln("line %d: Expected %smatch, got %smatch", lineNum, expected?"":"no ", found?"":"no " ); continue; } // // Interpret the Perl expression from the fourth field of the data file, // building up an ICU string from the results of the ICU match. // The Perl expression will contain references to the results of // a regex match, including the matched string, capture group strings, // group starting and ending indicies, etc. // UnicodeString resultString; UnicodeString perlExpr = fields[3]; groupsMat->reset(perlExpr); cgMat->reset(perlExpr); while (perlExpr.length() > 0) { if (perlExpr.startsWith("$&")) { resultString.append(testMat->group(status)); perlExpr.remove(0, 2); } else if (groupsMat->lookingAt(status)) { // $-[0] $+[2] etc. UnicodeString digitString = groupsMat->group(2, status); int32_t t = 0; int32_t groupNum = ICU_Utility::parseNumber(digitString, t, 10); UnicodeString plusOrMinus = groupsMat->group(1, status); int32_t matchPosition; if (plusOrMinus.compare("+") == 0) { matchPosition = testMat->end(groupNum, status); } else { matchPosition = testMat->start(groupNum, status); } if (matchPosition != -1) { ICU_Utility::appendNumber(resultString, matchPosition); } perlExpr.remove(0, groupsMat->end(status)); } else if (cgMat->lookingAt(status)) { // $1, $2, $3, etc. UnicodeString digitString = cgMat->group(1, status); int32_t t = 0; int32_t groupNum = ICU_Utility::parseNumber(digitString, t, 10); if (U_SUCCESS(status)) { resultString.append(testMat->group(groupNum, status)); status = U_ZERO_ERROR; } perlExpr.remove(0, cgMat->end(status)); } else if (perlExpr.startsWith("@-")) { int32_t i; for (i=0; i<=testMat->groupCount(); i++) { if (i>0) { resultString.append(" "); } ICU_Utility::appendNumber(resultString, testMat->start(i, status)); } perlExpr.remove(0, 2); } else if (perlExpr.startsWith("@+")) { int32_t i; for (i=0; i<=testMat->groupCount(); i++) { if (i>0) { resultString.append(" "); } ICU_Utility::appendNumber(resultString, testMat->end(i, status)); } perlExpr.remove(0, 2); } else if (perlExpr.startsWith("\\")) { // \Escape. Take following char as a literal. // or as an escaped sequence (e.g. \n) if (perlExpr.length() > 1) { perlExpr.remove(0, 1); // Remove the '\', but only if not last char. } UChar c = perlExpr.charAt(0); switch (c) { case 'n': c = '\n'; break; // add any other escape sequences that show up in the test expected results. } resultString.append(c); perlExpr.remove(0, 1); } else { // Any characters from the perl expression that we don't explicitly // recognize before here are assumed to be literals and copied // as-is to the expected results. resultString.append(perlExpr.charAt(0)); perlExpr.remove(0, 1); } if (U_FAILURE(status)) { errln("Line %d: ICU Error \"%s\"", lineNum, u_errorName(status)); break; } } // // Expected Results Compare // UnicodeString expectedS(fields[4]); expectedS.findAndReplace(nulnulSrc, nulnul); expectedS.findAndReplace(ffffSrc, ffff); expectedS.findAndReplace("\\n", "\n"); if (expectedS.compare(resultString) != 0) { err("Line %d: Incorrect perl expression results.", lineNum); errln((UnicodeString)"Expected \""+expectedS+(UnicodeString)"\"; got \""+resultString+(UnicodeString)"\""); } delete testMat; delete testPat; } // // All done. Clean up allocated stuff. // delete cgMat; delete cgPat; delete groupsMat; delete groupsPat; delete flagMat; delete flagPat; delete lineMat; delete linePat; delete fieldPat; delete [] testData; logln("%d tests skipped because of unimplemented regexp features.", skippedUnimplementedCount); } #endif /* !UCONFIG_NO_REGULAR_EXPRESSIONS */