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LibWeb+LibSyntax: Implement nested syntax highlighters

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And use them to highlight javascript in HTML source.
This commit also changes how TextDocumentSpan::data is interpreted,
as it used to be an opaque pointer, but everyone stuffed an enum value
inside it, which made the values not unique to each highlighter;
that field is now a u64 serial id.
The syntax highlighters don't need to change their ways of stuffing
token types into that field, but a highlighter that calls another
nested highlighter needs to register the nested types for use with
token pairs.
This commit is contained in:
Ali Mohammad Pur 2021-06-07 12:03:09 +04:30 • committed by Ali Mohammad Pur
parent 3bac14e19e
commit 71b4433b0d
18 changed files with 219 additions and 104 deletions
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14
Userland/Libraries/LibGUI/GMLSyntaxHighlighter.cpp
View file

@ -33,9 +33,9 @@ static Syntax::TextStyle style_for_token_type(const Gfx::Palette& palette, GMLTo
}
}
bool GMLSyntaxHighlighter::is_identifier(void* token) const
bool GMLSyntaxHighlighter::is_identifier(u64 token) const
{
auto ini_token = static_cast<GUI::GMLToken::Type>(reinterpret_cast<size_t>(token));
auto ini_token = static_cast<GUI::GMLToken::Type>(token);
return ini_token == GUI::GMLToken::Type::Identifier;
}
@ -54,7 +54,7 @@ void GMLSyntaxHighlighter::rehighlight(const Palette& palette)
span.attributes.color = style.color;
span.attributes.bold = style.bold;
span.is_skippable = false;
span.data = reinterpret_cast<void*>(token.m_type);
span.data = static_cast<u64>(token.m_type);
spans.append(span);
}
m_client->do_set_spans(move(spans));
@ -65,18 +65,18 @@ void GMLSyntaxHighlighter::rehighlight(const Palette& palette)
m_client->do_update();
}
Vector<GMLSyntaxHighlighter::MatchingTokenPair> GMLSyntaxHighlighter::matching_token_pairs() const
Vector<GMLSyntaxHighlighter::MatchingTokenPair> GMLSyntaxHighlighter::matching_token_pairs_impl() const
{
static Vector<MatchingTokenPair> pairs;
if (pairs.is_empty()) {
pairs.append({ reinterpret_cast<void*>(GMLToken::Type::LeftCurly), reinterpret_cast<void*>(GMLToken::Type::RightCurly) });
pairs.append({ static_cast<u64>(GMLToken::Type::LeftCurly), static_cast<u64>(GMLToken::Type::RightCurly) });
}
return pairs;
}
bool GMLSyntaxHighlighter::token_types_equal(void* token1, void* token2) const
bool GMLSyntaxHighlighter::token_types_equal(u64 token1, u64 token2) const
{
return static_cast<GUI::GMLToken::Type>(reinterpret_cast<size_t>(token1)) == static_cast<GUI::GMLToken::Type>(reinterpret_cast<size_t>(token2));
return static_cast<GUI::GMLToken::Type>(token1) == static_cast<GUI::GMLToken::Type>(token2);
}
GMLSyntaxHighlighter::~GMLSyntaxHighlighter()

6
Userland/Libraries/LibGUI/GMLSyntaxHighlighter.h
View file

@ -15,14 +15,14 @@ public:
GMLSyntaxHighlighter() { }
virtual ~GMLSyntaxHighlighter() override;
virtual bool is_identifier(void*) const override;
virtual bool is_identifier(u64) const override;
virtual Syntax::Language language() const override { return Syntax::Language::GML; }
virtual void rehighlight(const Palette&) override;
protected:
virtual Vector<MatchingTokenPair> matching_token_pairs() const override;
virtual bool token_types_equal(void*, void*) const override;
virtual Vector<MatchingTokenPair> matching_token_pairs_impl() const override;
virtual bool token_types_equal(u64, u64) const override;
};
}

14
Userland/Libraries/LibGUI/INISyntaxHighlighter.cpp
View file

@ -32,9 +32,9 @@ static Syntax::TextStyle style_for_token_type(const Gfx::Palette& palette, IniTo
}
}
bool IniSyntaxHighlighter::is_identifier(void* token) const
bool IniSyntaxHighlighter::is_identifier(u64 token) const
{
auto ini_token = static_cast<GUI::IniToken::Type>(reinterpret_cast<size_t>(token));
auto ini_token = static_cast<GUI::IniToken::Type>(token);
return ini_token == GUI::IniToken::Type::Name;
}
@ -53,7 +53,7 @@ void IniSyntaxHighlighter::rehighlight(const Palette& palette)
span.attributes.color = style.color;
span.attributes.bold = style.bold;
span.is_skippable = token.m_type == IniToken::Type::Whitespace;
span.data = reinterpret_cast<void*>(token.m_type);
span.data = static_cast<u64>(token.m_type);
spans.append(span);
}
m_client->do_set_spans(move(spans));
@ -64,18 +64,18 @@ void IniSyntaxHighlighter::rehighlight(const Palette& palette)
m_client->do_update();
}
Vector<IniSyntaxHighlighter::MatchingTokenPair> IniSyntaxHighlighter::matching_token_pairs() const
Vector<IniSyntaxHighlighter::MatchingTokenPair> IniSyntaxHighlighter::matching_token_pairs_impl() const
{
static Vector<MatchingTokenPair> pairs;
if (pairs.is_empty()) {
pairs.append({ reinterpret_cast<void*>(IniToken::Type::LeftBracket), reinterpret_cast<void*>(IniToken::Type::RightBracket) });
pairs.append({ static_cast<u64>(IniToken::Type::LeftBracket), static_cast<u64>(IniToken::Type::RightBracket) });
}
return pairs;
}
bool IniSyntaxHighlighter::token_types_equal(void* token1, void* token2) const
bool IniSyntaxHighlighter::token_types_equal(u64 token1, u64 token2) const
{
return static_cast<GUI::IniToken::Type>(reinterpret_cast<size_t>(token1)) == static_cast<GUI::IniToken::Type>(reinterpret_cast<size_t>(token2));
return static_cast<GUI::IniToken::Type>(token1) == static_cast<GUI::IniToken::Type>(token2);
}
IniSyntaxHighlighter::~IniSyntaxHighlighter()

6
Userland/Libraries/LibGUI/INISyntaxHighlighter.h
View file

@ -15,14 +15,14 @@ public:
IniSyntaxHighlighter() { }
virtual ~IniSyntaxHighlighter() override;
virtual bool is_identifier(void*) const override;
virtual bool is_identifier(u64) const override;
virtual Syntax::Language language() const override { return Syntax::Language::INI; }
virtual void rehighlight(const Palette&) override;
protected:
virtual Vector<MatchingTokenPair> matching_token_pairs() const override;
virtual bool token_types_equal(void*, void*) const override;
virtual Vector<MatchingTokenPair> matching_token_pairs_impl() const override;
virtual bool token_types_equal(u64, u64) const override;
};
}

2
Userland/Libraries/LibGUI/TextDocument.h
View file

@ -26,7 +26,7 @@ namespace GUI {
struct TextDocumentSpan {
TextRange range;
Gfx::TextAttributes attributes;
void* data { nullptr };
u64 data { 0 };
bool is_skippable { false };
};