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notepad-plus-plus/scintilla/test/unit/testRESearch.cxx

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/** @file testRESearch.cxx
** Unit Tests for Scintilla internal data structures
**/
#include <cstddef>
#include <cstring>
#include <stdexcept>
#include <string>
#include <string_view>
#include <vector>
#include <array>
#include <optional>
#include <algorithm>
#include <memory>
#include "ScintillaTypes.h"
#include "Debugging.h"
#include "Position.h"
#include "SplitVector.h"
#include "Partitioning.h"
#include "RunStyles.h"
#include "CellBuffer.h"
#include "CharClassify.h"
#include "RESearch.h"
#include "catch.hpp"
using namespace Scintilla;
using namespace Scintilla::Internal;
class StringCI : public CharacterIndexer {
std::string s;
public:
StringCI(std::string_view sv_) : s(sv_) {
}
Sci::Position Length() const noexcept {
return s.length();
}
char CharAt(Sci::Position index) const override {
return s.at(index);
}
std::string GetCharRange(Sci::Position position, Sci::Position lengthRetrieve) const {
return s.substr(position, lengthRetrieve);
}
};
// Test RESearch.
TEST_CASE("RESearch") {
CharClassify cc;
constexpr std::string_view sTextSpace = "Scintilla ";
constexpr std::string_view pattern = "[a-z]+";
SECTION("Compile") {
std::unique_ptr<RESearch> re = std::make_unique<RESearch>(&cc);
const char *msg = re->Compile(pattern.data(), pattern.length(), true, false);
REQUIRE(nullptr == msg);
}
SECTION("Execute") {
std::unique_ptr<RESearch> re = std::make_unique<RESearch>(&cc);
re->Compile(pattern.data(), pattern.length(), true, false);
StringCI sci(sTextSpace);
const int x = re->Execute(sci, 0, sci.Length());
REQUIRE(x == 1);
REQUIRE(re->bopat[0] == 1);
REQUIRE(re->eopat[0] == sci.Length() - 1);
}
SECTION("Grab") {
std::unique_ptr<RESearch> re = std::make_unique<RESearch>(&cc);
re->Compile(pattern.data(), pattern.length(), true, false);
StringCI sci(sTextSpace);
re->Execute(sci, 0, sci.Length());
std::string pat = sci.GetCharRange(re->bopat[0], re->eopat[0] - re->bopat[0]);
REQUIRE(pat == "cintilla");
}
}