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///////////////////////////////////////////////////////////////////////////////
// Name: tests/regex/wxregex.cpp
// Purpose: Test wxRegEx
// Author: Vadim Zeitlin, Mike Wetherell
// Copyright: Vadim Zeitlin, Mike Wetherell
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#include "testprec.h"
#ifndef WX_PRECOMP
# include "wx/wx.h"
#endif
#if wxUSE_REGEX
#include "wx/regex.h"
#include "wx/tokenzr.h"
#include <string>
using std::string;
// Display string for the flags
//
static wxString FlagStr(int flags)
{
wxString str;
if (!flags)
return str;
for (int i = 0; (unsigned)flags >> i; i++) {
switch (flags & (1 << i)) {
case 0: break;
#ifdef wxHAS_REGEX_ADVANCED
case wxRE_ADVANCED: str += wxT(" | wxRE_ADVANCED"); break;
#endif
case wxRE_BASIC: str += wxT(" | wxRE_BASIC"); break;
case wxRE_ICASE: str += wxT(" | wxRE_ICASE"); break;
case wxRE_NOSUB: str += wxT(" | wxRE_NOSUB"); break;
case wxRE_NEWLINE: str += wxT(" | wxRE_NEWLINE"); break;
case wxRE_NOTBOL: str += wxT(" | wxRE_NOTBOL"); break;
case wxRE_NOTEOL: str += wxT(" | wxRE_NOTEOL"); break;
default: wxFAIL; break;
}
}
return wxT(" (") + str.Mid(3) + wxT(")");
}
TEST_CASE("wxRegEx::Compile", "[regex][compile]")
{
wxRegEx re;
CHECK ( re.Compile("foo") );
CHECK_FALSE( re.Compile("foo(") );
CHECK_FALSE( re.Compile("foo(bar") );
CHECK ( re.Compile("foo(bar)") );
CHECK_FALSE( re.Compile("foo[") );
CHECK_FALSE( re.Compile("foo[bar") );
CHECK ( re.Compile("foo[bar]") );
// Not invalid for PCRE: CHECK_FALSE( re.Compile("foo{1") );
CHECK ( re.Compile("foo{1}") );
CHECK ( re.Compile("foo{1,2}") );
CHECK ( re.Compile("foo*") );
CHECK ( re.Compile("foo+") );
CHECK ( re.Compile("foo?") );
// Valid even if unusual, used to trigger a bug in wxRegEx::Compile().
CHECK ( re.Compile("\\0\\Q\\") );
}
static void
CheckMatch(const char* pattern,
const char* text,
const char* expected = NULL,
int compileFlags = wxRE_DEFAULT,
int matchFlags = 0)
{
INFO( "Pattern: "
<< pattern << FlagStr(static_cast<int>(compileFlags) | matchFlags)
<< ", match: " << text );
wxRegEx re(pattern, compileFlags);
if ( !re.IsValid() )
{
FAIL("Regex compilation failed");
return;
}
if ( !re.Matches(text, matchFlags) )
{
CHECK( !expected );
return;
}
CHECK( expected );
if ( !expected )
return;
wxStringTokenizer tkz(wxString(expected, *wxConvCurrent),
wxT("\t"), wxTOKEN_RET_EMPTY);
size_t i;
for (i = 0; i < re.GetMatchCount() && tkz.HasMoreTokens(); i++) {
INFO( "Match #" << i );
CHECK( re.GetMatch(text, i) == tkz.GetNextToken() );
}
if ((compileFlags & wxRE_NOSUB) == 0)
CHECK(re.GetMatchCount() == i);
}
TEST_CASE("wxRegEx::Match", "[regex][match]")
{
// Match tests
// pattern, text, expected results (match, followed by submatches
// tab separated, or NULL for no match expected)
CheckMatch("foo", "bar");
CheckMatch("foo", "foobar", "foo");
CheckMatch("^foo", "foobar", "foo");
CheckMatch("^foo", "barfoo");
CheckMatch("bar$", "barbar", "bar");
CheckMatch("bar$", "barbar ");
CheckMatch("OoBa", "FoObAr", "oObA", wxRE_ICASE);
CheckMatch("^[A-Z].*$", "AA\nbb\nCC", "AA\nbb\nCC");
CheckMatch("^[A-Z].*$", "AA\nbb\nCC", "AA", wxRE_NEWLINE);
CheckMatch("^[a-z].*$", "AA\nbb\nCC", "bb", wxRE_NEWLINE);
CheckMatch("^[A-Z].*$", "AA\nbb\nCC", "CC", wxRE_NEWLINE, wxRE_NOTBOL);
CheckMatch("^[A-Z].*$", "AA\nbb\nCC", NULL, wxRE_NEWLINE, wxRE_NOTBOL | wxRE_NOTEOL);
CheckMatch("([[:alpha:]]+) ([[:alpha:]]+) ([[:digit:]]+).* ([[:digit:]]+)$",
"Fri Jul 13 18:37:52 CEST 2001",
"Fri Jul 13 18:37:52 CEST 2001\tFri\tJul\t13\t2001");
}
static void
CheckReplace(const char* pattern,
const char* original,
const char* replacement,
const char* expected,
size_t numMatches)
{
wxRegEx re(pattern);
wxString text(original);
CHECK( re.Replace(&text, replacement) == static_cast<int>(numMatches) );
CHECK( text == expected );
}
TEST_CASE("wxRegEx::Replace", "[regex][replace]")
{
// Replace tests
// pattern, text, replacement, expected result and number of matches
const char *patn = "([a-z]+)[^0-9]*([0-9]+)";
CheckReplace(patn, "foo123", "bar", "bar", 1);
CheckReplace(patn, "foo123", "\\2\\1", "123foo", 1);
CheckReplace(patn, "foo_123", "\\2\\1", "123foo", 1);
CheckReplace(patn, "123foo", "bar", "123foo", 0);
CheckReplace(patn, "123foo456foo", "&&", "123foo456foo456foo", 1);
CheckReplace(patn, "123foo456foo", "\\0\\0", "123foo456foo456foo", 1);
CheckReplace(patn, "foo123foo123", "bar", "barbar", 2);
CheckReplace(patn, "foo123_foo456_foo789", "bar", "bar_bar_bar", 3);
}
TEST_CASE("wxRegEx::QuoteMeta", "[regex][meta]")
{
CHECK( wxRegEx::QuoteMeta("") == "" );
CHECK( wxRegEx::QuoteMeta("a") == "a" );
CHECK( wxRegEx::QuoteMeta("?") == "\\?" );
CHECK( wxRegEx::QuoteMeta("\\") == "\\\\" );
CHECK( wxRegEx::QuoteMeta("\\?!") == "\\\\\\?!" );
CHECK( wxRegEx::QuoteMeta(":foo.*bar") == ":foo\\.\\*bar" );
}
TEST_CASE("wxRegEx::ConvertFromBasic", "[regex][basic]")
{
CHECK( wxRegEx::ConvertFromBasic("\\(a\\)b") == "(a)b" );
CHECK( wxRegEx::ConvertFromBasic("a\\{0,1\\}b") == "a{0,1}b" );
CHECK( wxRegEx::ConvertFromBasic("*") == "\\*" );
CHECK( wxRegEx::ConvertFromBasic("**") == "\\**" );
CHECK( wxRegEx::ConvertFromBasic("^*") == "^\\*" );
CHECK( wxRegEx::ConvertFromBasic("^^") == "^\\^" );
CHECK( wxRegEx::ConvertFromBasic("x$y") == "x\\$y" );
CHECK( wxRegEx::ConvertFromBasic("$$") == "\\$$" );
CHECK( wxRegEx::ConvertFromBasic("\\(x$\\)") == "(x$)" );
CHECK( wxRegEx::ConvertFromBasic("[^$\\)]") == "[^$\\)]" );
}
TEST_CASE("wxRegEx::Unicode", "[regex][unicode]")
{
const wxString cyrillicCapitalA(L"\u0410");
const wxString cyrillicSmallA(L"\u0430");
wxRegEx re(cyrillicCapitalA, wxRE_ICASE);
REQUIRE( re.IsValid() );
REQUIRE( re.Matches(cyrillicSmallA) );
CHECK( re.GetMatch(cyrillicSmallA) == cyrillicSmallA );
}
// This pseudo test can be used just to see the version of PCRE being used.
TEST_CASE("wxRegEx::GetLibraryVersionInfo", "[.]")
{
const wxVersionInfo ver = wxRegEx::GetLibraryVersionInfo();
WARN("Using " << ver.GetName() << " " << ver.GetDescription()
<< " (major=" << ver.GetMajor()
<< ", minor=" << ver.GetMinor() << ")");
}
#endif // wxUSE_REGEX
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