mirror of
https://github.com/qinglong-app/qinglong_app.git
synced 2025-10-09 16:48:19 +08:00
update config_page.dart
This commit is contained in:
jyuesong
384
lib/base/ui/syntax_highlighter.dart
Normal file
384
lib/base/ui/syntax_highlighter.dart
Normal file
@@ -0,0 +1,384 @@
|
||||
// Copyright 2016 The Chromium Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:string_scanner/string_scanner.dart';
|
||||
|
||||
class SyntaxHighlighterStyle {
|
||||
SyntaxHighlighterStyle(
|
||||
{this.baseStyle,
|
||||
this.numberStyle,
|
||||
this.commentStyle,
|
||||
this.keywordStyle,
|
||||
this.stringStyle,
|
||||
this.punctuationStyle,
|
||||
this.classStyle,
|
||||
this.constantStyle});
|
||||
|
||||
static SyntaxHighlighterStyle lightThemeStyle() => SyntaxHighlighterStyle(
|
||||
baseStyle: const TextStyle(color: const Color(0xFF000000),height: 1,),
|
||||
numberStyle: const TextStyle(color: const Color(0xFF1565C0)),
|
||||
commentStyle: const TextStyle(color: const Color(0xFF9E9E9E)),
|
||||
keywordStyle: const TextStyle(color: const Color(0xFF9C27B0)),
|
||||
stringStyle: const TextStyle(color: const Color(0xFF43A047)),
|
||||
punctuationStyle: const TextStyle(color: const Color(0xFF000000)),
|
||||
classStyle: const TextStyle(color: const Color(0xFF512DA8)),
|
||||
constantStyle: const TextStyle(color: const Color(0xFF795548)),
|
||||
);
|
||||
|
||||
static SyntaxHighlighterStyle darkThemeStyle() => SyntaxHighlighterStyle(
|
||||
baseStyle: const TextStyle(color: const Color(0xFFFFFFFF)),
|
||||
numberStyle: const TextStyle(color: const Color(0xFF1565C0)),
|
||||
commentStyle: const TextStyle(color: const Color(0xFF9E9E9E)),
|
||||
keywordStyle: const TextStyle(color: const Color(0xFF80CBC4)),
|
||||
stringStyle: const TextStyle(color: const Color(0xFF009688)),
|
||||
punctuationStyle: const TextStyle(color: const Color(0xFFFFFFFF)),
|
||||
classStyle: const TextStyle(color: const Color(0xFF009688)),
|
||||
constantStyle: const TextStyle(color: const Color(0xFF795548)),
|
||||
);
|
||||
|
||||
SyntaxHighlighterStyle copyWith({
|
||||
TextStyle? baseStyle,
|
||||
TextStyle? numberStyle,
|
||||
TextStyle? commentStyle,
|
||||
TextStyle? keywordStyle,
|
||||
TextStyle? stringStyle,
|
||||
TextStyle? punctuationStyle,
|
||||
TextStyle? classStyle,
|
||||
TextStyle? constantStyle,
|
||||
}) =>
|
||||
SyntaxHighlighterStyle(
|
||||
baseStyle: baseStyle ?? this.baseStyle,
|
||||
numberStyle: numberStyle ?? this.numberStyle,
|
||||
commentStyle: commentStyle ?? this.commentStyle,
|
||||
keywordStyle: keywordStyle ?? this.keywordStyle,
|
||||
stringStyle: stringStyle ?? this.stringStyle,
|
||||
punctuationStyle: punctuationStyle ?? this.punctuationStyle,
|
||||
classStyle: classStyle ?? this.classStyle,
|
||||
constantStyle: constantStyle ?? this.constantStyle,
|
||||
);
|
||||
|
||||
final TextStyle? baseStyle;
|
||||
final TextStyle? numberStyle;
|
||||
final TextStyle? commentStyle;
|
||||
final TextStyle? keywordStyle;
|
||||
final TextStyle? stringStyle;
|
||||
final TextStyle? punctuationStyle;
|
||||
final TextStyle? classStyle;
|
||||
final TextStyle? constantStyle;
|
||||
}
|
||||
|
||||
abstract class SyntaxHighlighter {
|
||||
// ignore: one_member_abstracts
|
||||
TextSpan format(String src);
|
||||
}
|
||||
|
||||
class DartSyntaxHighlighter extends SyntaxHighlighter {
|
||||
DartSyntaxHighlighter([this._style]) {
|
||||
_spans = <_HighlightSpan>[];
|
||||
_style ??= SyntaxHighlighterStyle.darkThemeStyle();
|
||||
}
|
||||
|
||||
SyntaxHighlighterStyle? _style;
|
||||
|
||||
static const List<String> _keywords = const <String>[
|
||||
'abstract',
|
||||
'as',
|
||||
'assert',
|
||||
'async',
|
||||
'await',
|
||||
'break',
|
||||
'case',
|
||||
'catch',
|
||||
'class',
|
||||
'const',
|
||||
'continue',
|
||||
'default',
|
||||
'deferred',
|
||||
'do',
|
||||
'dynamic',
|
||||
'else',
|
||||
'enum',
|
||||
'export',
|
||||
'external',
|
||||
'extends',
|
||||
'factory',
|
||||
'false',
|
||||
'final',
|
||||
'finally',
|
||||
'for',
|
||||
'get',
|
||||
'if',
|
||||
'implements',
|
||||
'import',
|
||||
'in',
|
||||
'is',
|
||||
'library',
|
||||
'new',
|
||||
'null',
|
||||
'operator',
|
||||
'part',
|
||||
'rethrow',
|
||||
'return',
|
||||
'set',
|
||||
'static',
|
||||
'super',
|
||||
'switch',
|
||||
'sync',
|
||||
'this',
|
||||
'throw',
|
||||
'true',
|
||||
'try',
|
||||
'typedef',
|
||||
'var',
|
||||
'void',
|
||||
'while',
|
||||
'with',
|
||||
'yield'
|
||||
];
|
||||
|
||||
static const List<String> _builtInTypes = const <String>[
|
||||
'int',
|
||||
'double',
|
||||
'num',
|
||||
'bool'
|
||||
];
|
||||
|
||||
late String _src;
|
||||
late StringScanner _scanner;
|
||||
|
||||
late List<_HighlightSpan> _spans;
|
||||
|
||||
@override
|
||||
TextSpan format(String src) {
|
||||
_src = src;
|
||||
_scanner = StringScanner(_src);
|
||||
|
||||
if (_generateSpans()) {
|
||||
// Successfully parsed the code
|
||||
final List<TextSpan> formattedText = <TextSpan>[];
|
||||
int currentPosition = 0;
|
||||
|
||||
for (_HighlightSpan span in _spans) {
|
||||
if (currentPosition != span.start)
|
||||
formattedText
|
||||
.add(TextSpan(text: _src.substring(currentPosition, span.start)));
|
||||
|
||||
formattedText.add(TextSpan(
|
||||
style: span.textStyle(_style), text: span.textForSpan(_src)));
|
||||
|
||||
currentPosition = span.end;
|
||||
}
|
||||
|
||||
if (currentPosition != _src.length)
|
||||
formattedText
|
||||
.add(TextSpan(text: _src.substring(currentPosition, _src.length)));
|
||||
|
||||
return TextSpan(style: _style!.baseStyle, children: formattedText);
|
||||
} else {
|
||||
// Parsing failed, return with only basic formatting
|
||||
return TextSpan(style: _style!.baseStyle, text: src);
|
||||
}
|
||||
}
|
||||
|
||||
bool _generateSpans() {
|
||||
int lastLoopPosition = _scanner.position;
|
||||
|
||||
while (!_scanner.isDone) {
|
||||
// Skip White space
|
||||
_scanner.scan(RegExp(r'\s+'));
|
||||
|
||||
// Block comments
|
||||
if (_scanner.scan(RegExp(r'/\*(.|\n)*\*/'))) {
|
||||
_spans.add(_HighlightSpan(_HighlightType.comment,
|
||||
_scanner.lastMatch!.start, _scanner.lastMatch!.end));
|
||||
continue;
|
||||
}
|
||||
|
||||
// Line comments
|
||||
if (_scanner.scan('##')) {
|
||||
final int startComment = _scanner.lastMatch!.start;
|
||||
|
||||
bool eof = false;
|
||||
int endComment;
|
||||
if (_scanner.scan(RegExp(r'.*\n'))) {
|
||||
endComment = _scanner.lastMatch!.end - 1;
|
||||
} else {
|
||||
eof = true;
|
||||
endComment = _src.length;
|
||||
}
|
||||
|
||||
_spans.add(
|
||||
_HighlightSpan(_HighlightType.comment, startComment, endComment));
|
||||
|
||||
if (eof) break;
|
||||
|
||||
continue;
|
||||
}
|
||||
|
||||
// Raw r"String"
|
||||
if (_scanner.scan(RegExp(r'r".*"'))) {
|
||||
_spans.add(_HighlightSpan(_HighlightType.string,
|
||||
_scanner.lastMatch!.start, _scanner.lastMatch!.end));
|
||||
continue;
|
||||
}
|
||||
|
||||
// Raw r'String'
|
||||
if (_scanner.scan(RegExp(r"r'.*'"))) {
|
||||
_spans.add(_HighlightSpan(_HighlightType.string,
|
||||
_scanner.lastMatch!.start, _scanner.lastMatch!.end));
|
||||
continue;
|
||||
}
|
||||
|
||||
// Multiline """String"""
|
||||
if (_scanner.scan(RegExp(r'"""(?:[^"\\]|\\(.|\n))*"""'))) {
|
||||
_spans.add(_HighlightSpan(_HighlightType.string,
|
||||
_scanner.lastMatch!.start, _scanner.lastMatch!.end));
|
||||
continue;
|
||||
}
|
||||
|
||||
// Multiline '''String'''
|
||||
if (_scanner.scan(RegExp(r"'''(?:[^'\\]|\\(.|\n))*'''"))) {
|
||||
_spans.add(_HighlightSpan(_HighlightType.string,
|
||||
_scanner.lastMatch!.start, _scanner.lastMatch!.end));
|
||||
continue;
|
||||
}
|
||||
|
||||
// "String"
|
||||
if (_scanner.scan(RegExp(r'"(?:[^"\\]|\\.)*"'))) {
|
||||
_spans.add(_HighlightSpan(_HighlightType.string,
|
||||
_scanner.lastMatch!.start, _scanner.lastMatch!.end));
|
||||
continue;
|
||||
}
|
||||
|
||||
// 'String'
|
||||
if (_scanner.scan(RegExp(r"'(?:[^'\\]|\\.)*'"))) {
|
||||
_spans.add(_HighlightSpan(_HighlightType.string,
|
||||
_scanner.lastMatch!.start, _scanner.lastMatch!.end));
|
||||
continue;
|
||||
}
|
||||
|
||||
// Double
|
||||
if (_scanner.scan(RegExp(r'\d+\.\d+'))) {
|
||||
_spans.add(_HighlightSpan(_HighlightType.number,
|
||||
_scanner.lastMatch!.start, _scanner.lastMatch!.end));
|
||||
continue;
|
||||
}
|
||||
|
||||
// Integer
|
||||
if (_scanner.scan(RegExp(r'\d+'))) {
|
||||
_spans.add(_HighlightSpan(_HighlightType.number,
|
||||
_scanner.lastMatch!.start, _scanner.lastMatch!.end));
|
||||
continue;
|
||||
}
|
||||
|
||||
// Punctuation
|
||||
if (_scanner.scan(RegExp(r'[\[\]{}().!=<>&\|\?\+\-\*/%\^~;:,]'))) {
|
||||
_spans.add(_HighlightSpan(_HighlightType.punctuation,
|
||||
_scanner.lastMatch!.start, _scanner.lastMatch!.end));
|
||||
continue;
|
||||
}
|
||||
|
||||
// Meta data
|
||||
if (_scanner.scan(RegExp(r'@\w+'))) {
|
||||
_spans.add(_HighlightSpan(_HighlightType.keyword,
|
||||
_scanner.lastMatch!.start, _scanner.lastMatch!.end));
|
||||
continue;
|
||||
}
|
||||
|
||||
// Words
|
||||
if (_scanner.scan(RegExp(r'\w+'))) {
|
||||
_HighlightType? type;
|
||||
|
||||
String word = _scanner.lastMatch![0]!;
|
||||
if (word.startsWith('_')) word = word.substring(1);
|
||||
|
||||
if (_keywords.contains(word))
|
||||
type = _HighlightType.keyword;
|
||||
else if (_builtInTypes.contains(word))
|
||||
type = _HighlightType.keyword;
|
||||
else if (_firstLetterIsUpperCase(word))
|
||||
type = _HighlightType.klass;
|
||||
else if (word.length >= 2 &&
|
||||
word.startsWith('k') &&
|
||||
_firstLetterIsUpperCase(word.substring(1)))
|
||||
type = _HighlightType.constant;
|
||||
|
||||
if (type != null) {
|
||||
_spans.add(_HighlightSpan(
|
||||
type, _scanner.lastMatch!.start, _scanner.lastMatch!.end));
|
||||
}
|
||||
}
|
||||
|
||||
// Check if this loop did anything
|
||||
if (lastLoopPosition == _scanner.position) {
|
||||
// Failed to parse this file, abort gracefully
|
||||
return false;
|
||||
}
|
||||
lastLoopPosition = _scanner.position;
|
||||
}
|
||||
|
||||
_simplify();
|
||||
return true;
|
||||
}
|
||||
|
||||
void _simplify() {
|
||||
for (int i = _spans.length - 2; i >= 0; i -= 1) {
|
||||
if (_spans[i].type == _spans[i + 1].type &&
|
||||
_spans[i].end == _spans[i + 1].start) {
|
||||
_spans[i] =
|
||||
_HighlightSpan(_spans[i].type, _spans[i].start, _spans[i + 1].end);
|
||||
_spans.removeAt(i + 1);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
bool _firstLetterIsUpperCase(String str) {
|
||||
if (str.isNotEmpty) {
|
||||
final String first = str.substring(0, 1);
|
||||
return first == first.toUpperCase();
|
||||
}
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
enum _HighlightType {
|
||||
number,
|
||||
comment,
|
||||
keyword,
|
||||
string,
|
||||
punctuation,
|
||||
klass,
|
||||
constant
|
||||
}
|
||||
|
||||
class _HighlightSpan {
|
||||
_HighlightSpan(this.type, this.start, this.end);
|
||||
final _HighlightType type;
|
||||
final int start;
|
||||
final int end;
|
||||
|
||||
String textForSpan(String src) {
|
||||
return src.substring(start, end);
|
||||
}
|
||||
|
||||
TextStyle? textStyle(SyntaxHighlighterStyle? style) {
|
||||
if (type == _HighlightType.number)
|
||||
return style!.numberStyle;
|
||||
else if (type == _HighlightType.comment)
|
||||
return style!.commentStyle;
|
||||
else if (type == _HighlightType.keyword)
|
||||
return style!.keywordStyle;
|
||||
else if (type == _HighlightType.string)
|
||||
return style!.stringStyle;
|
||||
else if (type == _HighlightType.punctuation)
|
||||
return style!.punctuationStyle;
|
||||
else if (type == _HighlightType.klass)
|
||||
return style!.classStyle;
|
||||
else if (type == _HighlightType.constant)
|
||||
return style!.constantStyle;
|
||||
else
|
||||
return style!.baseStyle;
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user