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LibCpp: Add library for working with c++ code

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Moved the C++ Lexer we have from LibGUI to here, so that other
components could use it without linking with LibGUI.
This commit is contained in:
Itamar 2020-09-28 16:21:25 +03:00 • committed by Andreas Kling
parent fec4152220
commit bf53d7ff64
8 changed files with 132 additions and 126 deletions
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50
Libraries/LibGUI/CppSyntaxHighlighter.cpp
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@ -24,7 +24,7 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <LibGUI/CppLexer.h>
#include <LibCpp/Lexer.h>
#include <LibGUI/CppSyntaxHighlighter.h>
#include <LibGUI/TextEditor.h>
#include <LibGfx/Font.h>
@ -32,30 +32,30 @@
namespace GUI {
static TextStyle style_for_token_type(Gfx::Palette palette, CppToken::Type type)
static TextStyle style_for_token_type(Gfx::Palette palette, Cpp::Token::Type type)
{
switch (type) {
case CppToken::Type::Keyword:
case Cpp::Token::Type::Keyword:
return { palette.syntax_keyword(), &Gfx::Font::default_bold_fixed_width_font() };
case CppToken::Type::KnownType:
case Cpp::Token::Type::KnownType:
return { palette.syntax_type(), &Gfx::Font::default_bold_fixed_width_font() };
case CppToken::Type::Identifier:
case Cpp::Token::Type::Identifier:
return { palette.syntax_identifier() };
case CppToken::Type::DoubleQuotedString:
case CppToken::Type::SingleQuotedString:
case CppToken::Type::RawString:
case Cpp::Token::Type::DoubleQuotedString:
case Cpp::Token::Type::SingleQuotedString:
case Cpp::Token::Type::RawString:
return { palette.syntax_string() };
case CppToken::Type::Integer:
case CppToken::Type::Float:
case Cpp::Token::Type::Integer:
case Cpp::Token::Type::Float:
return { palette.syntax_number() };
case CppToken::Type::IncludePath:
case Cpp::Token::Type::IncludePath:
return { palette.syntax_preprocessor_value() };
case CppToken::Type::EscapeSequence:
case Cpp::Token::Type::EscapeSequence:
return { palette.syntax_keyword(), &Gfx::Font::default_bold_fixed_width_font() };
case CppToken::Type::PreprocessorStatement:
case CppToken::Type::IncludeStatement:
case Cpp::Token::Type::PreprocessorStatement:
case Cpp::Token::Type::IncludeStatement:
return { palette.syntax_preprocessor_statement() };
case CppToken::Type::Comment:
case Cpp::Token::Type::Comment:
return { palette.syntax_comment() };
default:
return { palette.base_text() };
@ -64,21 +64,21 @@ static TextStyle style_for_token_type(Gfx::Palette palette, CppToken::Type type)
bool CppSyntaxHighlighter::is_identifier(void* token) const
{
auto cpp_token = static_cast<GUI::CppToken::Type>(reinterpret_cast<size_t>(token));
return cpp_token == GUI::CppToken::Type::Identifier;
auto cpp_token = static_cast<Cpp::Token::Type>(reinterpret_cast<size_t>(token));
return cpp_token == Cpp::Token::Type::Identifier;
}
bool CppSyntaxHighlighter::is_navigatable(void* token) const
{
auto cpp_token = static_cast<GUI::CppToken::Type>(reinterpret_cast<size_t>(token));
return cpp_token == GUI::CppToken::Type::IncludePath;
auto cpp_token = static_cast<Cpp::Token::Type>(reinterpret_cast<size_t>(token));
return cpp_token == Cpp::Token::Type::IncludePath;
}
void CppSyntaxHighlighter::rehighlight(Gfx::Palette palette)
{
ASSERT(m_editor);
auto text = m_editor->text();
CppLexer lexer(text);
Cpp::Lexer lexer(text);
auto tokens = lexer.lex();
Vector<GUI::TextDocumentSpan> spans;
@ -92,7 +92,7 @@ void CppSyntaxHighlighter::rehighlight(Gfx::Palette palette)
auto style = style_for_token_type(palette, token.m_type);
span.color = style.color;
span.font = style.font;
span.is_skippable = token.m_type == CppToken::Type::Whitespace;
span.is_skippable = token.m_type == Cpp::Token::Type::Whitespace;
span.data = reinterpret_cast<void*>(token.m_type);
spans.append(span);
}
@ -108,16 +108,16 @@ Vector<SyntaxHighlighter::MatchingTokenPair> CppSyntaxHighlighter::matching_toke
{
static Vector<SyntaxHighlighter::MatchingTokenPair> pairs;
if (pairs.is_empty()) {
pairs.append({ reinterpret_cast<void*>(CppToken::Type::LeftCurly), reinterpret_cast<void*>(CppToken::Type::RightCurly) });
pairs.append({ reinterpret_cast<void*>(CppToken::Type::LeftParen), reinterpret_cast<void*>(CppToken::Type::RightParen) });
pairs.append({ reinterpret_cast<void*>(CppToken::Type::LeftBracket), reinterpret_cast<void*>(CppToken::Type::RightBracket) });
pairs.append({ reinterpret_cast<void*>(Cpp::Token::Type::LeftCurly), reinterpret_cast<void*>(Cpp::Token::Type::RightCurly) });
pairs.append({ reinterpret_cast<void*>(Cpp::Token::Type::LeftParen), reinterpret_cast<void*>(Cpp::Token::Type::RightParen) });
pairs.append({ reinterpret_cast<void*>(Cpp::Token::Type::LeftBracket), reinterpret_cast<void*>(Cpp::Token::Type::RightBracket) });
}
return pairs;
}
bool CppSyntaxHighlighter::token_types_equal(void* token1, void* token2) const
{
return static_cast<GUI::CppToken::Type>(reinterpret_cast<size_t>(token1)) == static_cast<GUI::CppToken::Type>(reinterpret_cast<size_t>(token2));
return static_cast<Cpp::Token::Type>(reinterpret_cast<size_t>(token1)) == static_cast<Cpp::Token::Type>(reinterpret_cast<size_t>(token2));
}
CppSyntaxHighlighter::~CppSyntaxHighlighter()