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// Copyright (C) Filippo Cucchetto <filippocucchetto@gmail.com>
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
#include "nimhighlighter.h"
#include "../tools/nimlexer.h"
#include <texteditor/textdocument.h>
#include <texteditor/texteditorconstants.h>
#include <utils/qtcassert.h>
namespace Nim {
NimHighlighter::NimHighlighter()
{
setDefaultTextFormatCategories();
}
void NimHighlighter::highlightBlock(const QString &text)
{
setCurrentBlockState(highlightLine(text, previousBlockState()));
}
TextEditor::TextStyle NimHighlighter::styleForToken(const NimLexer::Token &token,
const QString &tokenValue)
{
switch (token.type) {
case NimLexer::TokenType::Keyword:
return TextEditor::C_KEYWORD;
case NimLexer::TokenType::Identifier:
return styleForIdentifier(token, tokenValue);
case NimLexer::TokenType::Comment:
return TextEditor::C_COMMENT;
case NimLexer::TokenType::Documentation:
return TextEditor::C_DOXYGEN_COMMENT;
case NimLexer::TokenType::StringLiteral:
return TextEditor::C_STRING;
case NimLexer::TokenType::MultiLineStringLiteral:
return TextEditor::C_STRING;
case NimLexer::TokenType::Operator:
return TextEditor::C_OPERATOR;
case NimLexer::TokenType::Number:
return TextEditor::C_NUMBER;
default:
return TextEditor::C_TEXT;
}
}
TextEditor::TextStyle NimHighlighter::styleForIdentifier(const NimLexer::Token &token,
const QString &tokenValue)
{
Q_UNUSED(token)
QTC_ASSERT(token.type == NimLexer::TokenType::Identifier, return TextEditor::C_TEXT);
static QSet<QString> nimBuiltInValues {
"true", "false"
};
static QSet<QString> nimBuiltInFunctions {
"echo", "isMainModule"
};
static QSet<QString> nimBuiltInTypes {
"bool", "cbool", "string",
"cstring", "int", "cint",
"uint", "cuint", "long",
"clong", "double", "cdouble",
"table", "RootObj"
};
if (nimBuiltInFunctions.contains(tokenValue))
return TextEditor::C_TYPE;
if (nimBuiltInValues.contains(tokenValue))
return TextEditor::C_KEYWORD;
if (nimBuiltInTypes.contains(tokenValue))
return TextEditor::C_TYPE;
return TextEditor::C_TEXT;
}
int NimHighlighter::highlightLine(const QString &text, int initialState)
{
NimLexer lexer(text.constData(),
text.size(),
static_cast<NimLexer::State>(initialState));
NimLexer::Token tk;
while ((tk = lexer.next()).type != NimLexer::TokenType::EndOfText) {
TextEditor::TextStyle style = styleForToken(tk, text.mid(tk.begin, tk.length));
setFormat(tk.begin, tk.length, formatForCategory(style));
}
return lexer.state();
}
}
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