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/** @file testDocument.cxx
** Unit Tests for Scintilla internal data structures
**/
#include <cstddef>
#include <cstring>
#include <stdexcept>
#include <string_view>
#include <vector>
#include <optional>
#include <algorithm>
#include <memory>
#include "ScintillaTypes.h"
#include "ILoader.h"
#include "ILexer.h"
#include "Debugging.h"
#include "CharacterCategoryMap.h"
#include "Position.h"
#include "SplitVector.h"
#include "Partitioning.h"
#include "RunStyles.h"
#include "CellBuffer.h"
#include "CharClassify.h"
#include "Decoration.h"
#include "CaseFolder.h"
#include "Document.h"
#include "catch.hpp"
using namespace Scintilla;
using namespace Scintilla::Internal;
// Test Document.
struct DocPlus {
Document document;
DocPlus(std::string_view svInitial, int codePage) : document(DocumentOption::Default) {
document.SetDBCSCodePage(codePage);
if (codePage == CpUtf8) {
document.SetCaseFolder(std::make_unique<CaseFolderUnicode>());
} else {
// This case folder will not handle many DBCS cases. Scintilla uses platform-specific code for DBCS
// case folding which can not easily be inserted in platform-independent tests.
std::unique_ptr<CaseFolderTable> pcft = std::make_unique<CaseFolderTable>();
pcft->StandardASCII();
document.SetCaseFolder(std::move(pcft));
}
document.InsertString(0, svInitial.data(), svInitial.length());
}
};
TEST_CASE("Document") {
const char sText[] = "Scintilla";
const Sci::Position sLength = static_cast<Sci::Position>(strlen(sText));
SECTION("InsertOneLine") {
DocPlus doc("", 0);
const Sci::Position length = doc.document.InsertString(0, sText, sLength);
REQUIRE(sLength == doc.document.Length());
REQUIRE(length == sLength);
REQUIRE(1 == doc.document.LinesTotal());
REQUIRE(0 == doc.document.LineStart(0));
REQUIRE(0 == doc.document.LineFromPosition(0));
REQUIRE(sLength == doc.document.LineStart(1));
REQUIRE(0 == doc.document.LineFromPosition(static_cast<int>(sLength)));
REQUIRE(doc.document.CanUndo());
REQUIRE(!doc.document.CanRedo());
}
SECTION("SearchInUTF8") {
DocPlus doc("ab\xCE\x93" "d", CpUtf8); // a b gamma d
std::string finding = "b";
Sci::Position lengthFinding = finding.length();
Sci::Position location = doc.document.FindText(0, doc.document.Length(), finding.c_str(), FindOption::MatchCase, &lengthFinding);
REQUIRE(location == 1);
location = doc.document.FindText(doc.document.Length(), 0, finding.c_str(), FindOption::MatchCase, &lengthFinding);
REQUIRE(location == 1);
}
SECTION("SearchInShiftJIS") {
// {CJK UNIFIED IDEOGRAPH-9955} is two bytes: {0xE9, 'b'} in Shift-JIS
// The 'b' can be incorrectly matched by the search string 'b' when the search
// does not iterate the text correctly.
DocPlus doc("ab\xe9" "b ", 932); // a b {CJK UNIFIED IDEOGRAPH-9955} {space}
std::string finding = "b";
// Search forwards
Sci::Position lengthFinding = finding.length();
Sci::Position location = doc.document.FindText(0, doc.document.Length(), finding.c_str(), FindOption::MatchCase, &lengthFinding);
REQUIRE(location == 1);
// Search backwards
lengthFinding = finding.length();
location = doc.document.FindText(doc.document.Length(), 0, finding.c_str(), FindOption::MatchCase, &lengthFinding);
REQUIRE(location == 1);
}
SECTION("GetCharacterAndWidth") {
Document doc(DocumentOption::Default);
doc.SetDBCSCodePage(932);
REQUIRE(doc.CodePage() == 932);
const Sci::Position length = doc.InsertString(0, "\x84\xff=", 3);
REQUIRE(3 == length);
REQUIRE(3 == doc.Length());
Sci::Position width = 0;
int ch = doc.GetCharacterAndWidth(0, &width);
REQUIRE(width == 1);
REQUIRE(ch == 0x84);
width = 0;
ch = doc.GetCharacterAndWidth(1, &width);
REQUIRE(width == 1);
REQUIRE(ch == 0xff);
width = 0;
ch = doc.GetCharacterAndWidth(2, &width);
REQUIRE(width == 1);
REQUIRE(ch == '=');
}
}
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