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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:
explicit StringCI(std::string_view sv_) : s(sv_) {
}
virtual ~StringCI() = default;
[[nodiscard]] Sci::Position Length() const noexcept {
return s.length();
}
char CharAt(Sci::Position index) const override {
return s.at(index);
}
Sci::Position MovePositionOutsideChar(Sci::Position pos, [[maybe_unused]] Sci::Position moveDir) const noexcept override {
return pos;
}
[[nodiscard]] 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") {
RESearch re(&cc);
const char *msg = re.Compile(pattern.data(), pattern.length(), true, false);
REQUIRE(nullptr == msg);
}
SECTION("Bug2413") {
// Check for https://sourceforge.net/p/scintilla/bugs/2413/
RESearch re(&cc);
constexpr std::string_view BOW = "\\<";
constexpr std::string_view EOW = "\\>";
const char *msg = re.Compile(BOW.data(), BOW.length(), true, false);
REQUIRE(nullptr == msg);
msg = re.Compile(EOW.data(), EOW.length(), true, false);
REQUIRE(nullptr == msg);
}
SECTION("Execute") {
RESearch re(&cc);
re.Compile(pattern.data(), pattern.length(), true, false);
const 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") {
RESearch re(&cc);
re.Compile(pattern.data(), pattern.length(), true, false);
const StringCI sci(sTextSpace);
re.Execute(sci, 0, sci.Length());
const std::string pat = sci.GetCharRange(re.bopat[0], re.eopat[0] - re.bopat[0]);
REQUIRE(pat == "cintilla");
}
}
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