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https://github.com/LadybirdBrowser/ladybird.git
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8e8d24fe29
This highlighter just syntax highlights the commented lines in your git commit message. It could potentially be enhanced to handle the rebase UI or other more advanced cases in the future.
83 lines
1.8 KiB
C++
83 lines
1.8 KiB
C++
/*
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* Copyright (c) 2022, Brian Gianforcaro <bgianf@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/CharacterTypes.h>
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#include <AK/Vector.h>
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#include <LibGUI/GitCommitLexer.h>
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namespace GUI {
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GitCommitLexer::GitCommitLexer(StringView input)
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: m_input(input)
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{
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}
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char GitCommitLexer::peek(size_t offset) const
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{
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if ((m_index + offset) >= m_input.length())
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return 0;
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return m_input[m_index + offset];
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}
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char GitCommitLexer::consume()
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{
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VERIFY(m_index < m_input.length());
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char ch = m_input[m_index++];
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if (ch == '\n') {
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m_position.line++;
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m_position.column = 0;
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} else {
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m_position.column++;
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}
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return ch;
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}
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Vector<GitCommitToken> GitCommitLexer::lex()
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{
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Vector<GitCommitToken> tokens;
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size_t token_start_index = 0;
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GitCommitPosition token_start_position;
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auto begin_token = [&] {
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token_start_index = m_index;
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token_start_position = m_position;
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};
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auto commit_token = [&](auto type) {
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GitCommitToken token;
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token.m_view = m_input.substring_view(token_start_index, m_index - token_start_index);
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token.m_type = type;
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token.m_start = token_start_position;
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token.m_end = m_position;
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tokens.append(token);
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};
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while (m_index < m_input.length()) {
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if (is_ascii_space(peek(0))) {
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begin_token();
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while (is_ascii_space(peek()))
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consume();
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continue;
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}
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// Commit comments
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if (peek(0) && peek(0) == '#') {
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begin_token();
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while (peek() && peek() != '\n')
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consume();
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commit_token(GitCommitToken::Type::Comment);
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continue;
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}
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consume();
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commit_token(GitCommitToken::Type::Unknown);
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}
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return tokens;
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}
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}
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