125 lines
5 KiB
C++
125 lines
5 KiB
C++
/*
|
|
* Copyright (c) 2020, the SerenityOS developers.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice, this
|
|
* list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <AK/Debug.h>
|
|
#include <LibCpp/Lexer.h>
|
|
#include <LibCpp/SyntaxHighlighter.h>
|
|
#include <LibGUI/TextEditor.h>
|
|
#include <LibGfx/Font.h>
|
|
#include <LibGfx/Palette.h>
|
|
|
|
namespace Cpp {
|
|
|
|
static Syntax::TextStyle style_for_token_type(const Gfx::Palette& palette, Cpp::Token::Type type)
|
|
{
|
|
switch (type) {
|
|
case Cpp::Token::Type::Keyword:
|
|
return { palette.syntax_keyword(), true };
|
|
case Cpp::Token::Type::KnownType:
|
|
return { palette.syntax_type(), true };
|
|
case Cpp::Token::Type::Identifier:
|
|
return { palette.syntax_identifier(), false };
|
|
case Cpp::Token::Type::DoubleQuotedString:
|
|
case Cpp::Token::Type::SingleQuotedString:
|
|
case Cpp::Token::Type::RawString:
|
|
return { palette.syntax_string(), false };
|
|
case Cpp::Token::Type::Integer:
|
|
case Cpp::Token::Type::Float:
|
|
return { palette.syntax_number(), false };
|
|
case Cpp::Token::Type::IncludePath:
|
|
return { palette.syntax_preprocessor_value(), false };
|
|
case Cpp::Token::Type::EscapeSequence:
|
|
return { palette.syntax_keyword(), true };
|
|
case Cpp::Token::Type::PreprocessorStatement:
|
|
case Cpp::Token::Type::IncludeStatement:
|
|
return { palette.syntax_preprocessor_statement(), false };
|
|
case Cpp::Token::Type::Comment:
|
|
return { palette.syntax_comment(), false };
|
|
default:
|
|
return { palette.base_text(), false };
|
|
}
|
|
}
|
|
|
|
bool SyntaxHighlighter::is_identifier(void* token) const
|
|
{
|
|
auto cpp_token = static_cast<Cpp::Token::Type>(reinterpret_cast<size_t>(token));
|
|
return cpp_token == Cpp::Token::Type::Identifier;
|
|
}
|
|
|
|
bool SyntaxHighlighter::is_navigatable(void* token) const
|
|
{
|
|
auto cpp_token = static_cast<Cpp::Token::Type>(reinterpret_cast<size_t>(token));
|
|
return cpp_token == Cpp::Token::Type::IncludePath;
|
|
}
|
|
|
|
void SyntaxHighlighter::rehighlight(const Palette& palette)
|
|
{
|
|
auto text = m_client->get_text();
|
|
Cpp::Lexer lexer(text);
|
|
auto tokens = lexer.lex();
|
|
|
|
Vector<GUI::TextDocumentSpan> spans;
|
|
for (auto& token : tokens) {
|
|
dbgln_if(SYNTAX_HIGHLIGHTING_DEBUG, "{} @ {}:{} - {}:{}", token.to_string(), token.start().line, token.start().column, token.end().line, token.end().column);
|
|
GUI::TextDocumentSpan span;
|
|
span.range.set_start({ token.start().line, token.start().column });
|
|
span.range.set_end({ token.end().line, token.end().column });
|
|
auto style = style_for_token_type(palette, token.type());
|
|
span.attributes.color = style.color;
|
|
span.attributes.bold = style.bold;
|
|
span.is_skippable = token.type() == Cpp::Token::Type::Whitespace;
|
|
span.data = reinterpret_cast<void*>(token.type());
|
|
spans.append(span);
|
|
}
|
|
m_client->do_set_spans(move(spans));
|
|
|
|
m_has_brace_buddies = false;
|
|
highlight_matching_token_pair();
|
|
|
|
m_client->do_update();
|
|
}
|
|
|
|
Vector<SyntaxHighlighter::MatchingTokenPair> SyntaxHighlighter::matching_token_pairs() const
|
|
{
|
|
static Vector<SyntaxHighlighter::MatchingTokenPair> pairs;
|
|
if (pairs.is_empty()) {
|
|
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 SyntaxHighlighter::token_types_equal(void* token1, void* token2) const
|
|
{
|
|
return static_cast<Cpp::Token::Type>(reinterpret_cast<size_t>(token1)) == static_cast<Cpp::Token::Type>(reinterpret_cast<size_t>(token2));
|
|
}
|
|
|
|
SyntaxHighlighter::~SyntaxHighlighter()
|
|
{
|
|
}
|
|
|
|
}
|