books

packages/components/lib/toly_ui/code_view/code/code.dart

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+export 'code_widget.dart';
+export 'high_light_code.dart';
+export 'highlighter_style.dart';
+export 'language/language.dart';
+export 'language/dart_languge.dart';

packages/components/lib/toly_ui/code_view/code/code_widget.dart

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+
+/// create by 张风捷特烈 on 2020-04-15
+/// contact me by email 1981462002@qq.com
+/// 说明: 
+import 'package:flutter/material.dart';
+
+import 'high_light_code.dart';
+import 'highlighter_style.dart';
+import 'language/dart_languge.dart';
+
+class CodeWidget extends StatelessWidget {
+   CodeWidget({Key? key, required this.code,required this.style, this.fontSize = 13,this.fontFamily})
+      : super(key: key);
+
+  final String code;
+  final HighlighterStyle style;
+  final double fontSize;
+  final String? fontFamily;
+
+  @override
+  Widget build(BuildContext context) {
+    Widget body;
+    Widget _codeWidget;
+      try {
+        _codeWidget = RichText(
+          text: TextSpan(
+            style: TextStyle(fontSize: fontSize,fontFamily: fontFamily),
+            children: <TextSpan>[
+              CodeHighlighter(
+                style: style,
+                language: const DartLanguage()
+            ).format(code)],
+          ),
+        );
+      } catch (err) {
+        print(err);
+        _codeWidget = Text(code);
+      }
+      body = SingleChildScrollView(
+        child: Container(
+          child: _codeWidget,
+          padding: const EdgeInsets.all(10),
+          decoration: BoxDecoration(
+              color: style.backgroundColor ?? const Color(0xffF6F8FA),
+              borderRadius: const BorderRadius.all(Radius.circular(5.0))),
+        ),
+      );
+    return body;
+  }
+}

packages/components/lib/toly_ui/code_view/code/high_light_code.dart

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+/// create by 张风捷特烈 on 2020-04-15
+/// contact me by email 1981462002@qq.com
+/// 说明:
+
+// 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';
+
+import 'highlighter_style.dart';
+import 'language/dart_languge.dart';
+import 'language/language.dart';
+
+/// final SyntaxHighlighterStyle style = SyntaxHighlighterStyle.lightThemeStyle();
+/// DartSyntaxHighlighter(style).format(source)
+
+abstract class Highlighter {
+  // ignore: one_member_abstracts
+  Language language;
+
+
+  Highlighter({required this.language});
+
+  TextSpan format(String src);
+}
+
+//暗黑模式下的高亮样式
+class CodeHighlighter extends Highlighter {
+  CodeHighlighter(
+      {Language language = const DartLanguage(), HighlighterStyle? style}):super(language: language) {
+    _spans = <_HighlightSpan>[];
+    _style = style ?? HighlighterStyle.fromColors(HighlighterStyle.lightColor);
+  }
+
+ late HighlighterStyle _style;
+
+  String _src='';
+  late StringScanner _scanner;
+
+  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??0, _scanner.lastMatch?.end??0));
+        continue;
+      }
+
+      // Line comments
+      if (_scanner.scan(RegExp(r'//'))) {
+        final int startComment = _scanner.lastMatch?.start??0;
+        bool eof = false;
+        int endComment;
+        if (_scanner.scan(RegExp(r'(.*\r\n)|(.*\n)'))) {
+          int? end = _scanner.lastMatch?.end;
+          endComment = end==null?0: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??0, _scanner.lastMatch?.end??0));
+        continue;
+      }
+
+      // Raw r'String'
+      if (_scanner.scan(RegExp(r"r'.*'"))) {
+        _spans.add(_HighlightSpan(_HighlightType.string,
+            _scanner.lastMatch?.start??0, _scanner.lastMatch?.end??0));
+        continue;
+      }
+
+      // Multiline """String"""
+      if (_scanner.scan(RegExp(r'"""(?:[^"\\]|\\(.|\n))*"""'))) {
+        _spans.add(_HighlightSpan(_HighlightType.string,
+            _scanner.lastMatch?.start??0, _scanner.lastMatch?.end??0));
+        continue;
+      }
+
+      // Multiline '''String'''
+      if (_scanner.scan(RegExp(r"'''(?:[^'\\]|\\(.|\n))*'''"))) {
+        _spans.add(_HighlightSpan(_HighlightType.string,
+            _scanner.lastMatch?.start??0, _scanner.lastMatch?.end??0));
+        continue;
+      }
+
+      // "String"
+      if (_scanner.scan(RegExp(r'"(?:[^"\\]|\\.)*"'))) {
+        _spans.add(_HighlightSpan(_HighlightType.string,
+            _scanner.lastMatch?.start??0, _scanner.lastMatch?.end??0));
+        continue;
+      }
+
+      // 'String'
+      if (_scanner.scan(RegExp(r"'(?:[^'\\]|\\.)*'"))) {
+        _spans.add(_HighlightSpan(_HighlightType.string,
+            _scanner.lastMatch?.start??0, _scanner.lastMatch?.end??0));
+        continue;
+      }
+
+      // Double
+      if (_scanner.scan(RegExp(r'\d+\.\d+'))) {
+        _spans.add(_HighlightSpan(_HighlightType.number,
+            _scanner.lastMatch?.start??0, _scanner.lastMatch?.end??0));
+        continue;
+      }
+
+      // Integer
+      if (_scanner.scan(RegExp(r'\d+'))) {
+        _spans.add(_HighlightSpan(_HighlightType.number,
+            _scanner.lastMatch?.start??0, _scanner.lastMatch?.end??0));
+        continue;
+      }
+
+      // Punctuation
+      if (_scanner.scan(RegExp(r'[\[\]{}().!=<>&\|\?\+\-\*/%\^~;:,]'))) {
+        _spans.add(_HighlightSpan(_HighlightType.punctuation,
+            _scanner.lastMatch?.start??0, _scanner.lastMatch?.end??0));
+        continue;
+      }
+
+      // Meta data
+      if (_scanner.scan(RegExp(r'@\w+'))) {
+        _spans.add(_HighlightSpan(_HighlightType.keyword,
+            _scanner.lastMatch?.start??0, _scanner.lastMatch?.end??0));
+        continue;
+      }
+
+      // Words
+      if (_scanner.scan(RegExp(r'\w+'))) {
+        _HighlightType? type;
+        String word = _scanner.lastMatch?[0]??'';
+
+        if (word.startsWith('_')) word = word.substring(1);
+
+        if (language.containsKeywords(word)) {
+          type = _HighlightType.keyword;
+        } else if (language.containsInTypes(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??0, _scanner.lastMatch?.end??0));
+        }
+      }
+      // 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(HighlighterStyle? 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;
+    }
+  }
+}

packages/components/lib/toly_ui/code_view/code/highlighter_style.dart

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+/// create by 张风捷特烈 on 2020-04-15
+/// contact me by email 1981462002@qq.com
+/// 说明: 
+
+import 'package:flutter/material.dart';
+
+/// create by 张风捷特烈 on 2020-04-11
+/// contact me by email 1981462002@qq.com
+/// 说明:
+
+class HighlighterStyle {
+  //句法高亮样式
+  const HighlighterStyle(
+      { //构造函数
+        this.baseStyle, //基础样式
+        this.numberStyle, //数字的样式
+        this.commentStyle, //注释样式
+        this.keywordStyle, //关键字样式
+        this.stringStyle, //字符串样式
+        this.punctuationStyle, //标点符号样式
+        this.classStyle, //类名
+        this.backgroundColor,
+        this.constantStyle});
+
+  static List<int> get lightColor => [
+    0xFF000000, //基础
+    0xFF00b0e8, //数字
+    0xFF9E9E9E, //注释
+    0xFF9C27B0, //关键
+    0xFF43A047, //字符串
+    0xFF000000, //标点符号
+    0xFF3D62F5, //类名
+    0xFF795548, //常量
+    0xffF6F8FA, //背景
+  ];
+
+  static List<int> get darkColor => [
+    0xFFFFFFFF, //基础
+    0xFFDF935F, //数字
+    0xFF9E9E9E, //注释
+    0xFF80CBC4, //关键字
+    0xFFB9CA4A, //字符串
+    0xFFFFFFFF, //标点符号
+    0xFF7AA6DA, //类名
+    0xFF795548, //常量
+    0xFF1D1F21, //背景
+  ];
+
+  static List<int> get gitHub =>
+      [
+        0xFF333333, //基础
+        0xFF008081, //数字
+        0xFF9D9D8D, //注释
+        0xFF009999, //关键字
+        0xFFDD1045, //字符串
+        0xFF333333, //标点符号
+        0xFF6F42C1, //类名
+        0xFF795548, //常量
+        0xFFF8F8F8, //背景
+      ];
+
+  static List<int> get zenburn => [
+    0xFFDCDCDC, //普通字
+    0xFF87C5C8, //数字
+    0xFF8F8F8F, //注释
+    0xFFE4CEAB, //关键字
+    0xFFCC9493, //字符串
+    0xFFDCDCDC, //标点符号
+    0xFFEFEF90, //类名
+    0xFFEF5350, //常量
+    0xFF3F3F3F, //背景
+  ];
+
+  static List<int> get mf =>[
+    0xFF707D95, //基础
+    0xFF6897BB, //数字
+    0xFF629755, //注释
+    0xFFCC7832, //关键
+    0xFFF14E9F, //字符串
+    0xFFFFBB33, //标点符号
+    0xFF66CCFF, //类名
+    0xFF9876AA, //常量
+    0xFF2B2B2B  //背景
+  ];
+
+  static List<int> get solarized =>[
+    0xFF657B83,  // 普通字
+    0xFFD33682,  // 数字
+    0xFF93A1A1,  // 注释
+    0xFF859900,  // 关键字
+    0xFF2AA198,  // 字符串
+    0xFF859900,  // 标点符号
+    0xFF268BD2,  // 类名
+    0xFF268BD2,  //常量
+    0xFFDDD6C1,  // 背景
+  ];
+
+  factory HighlighterStyle.fromColors(List<int> colors) => HighlighterStyle(
+    baseStyle: TextStyle(
+      color: Color(colors[0]),
+    ),
+    numberStyle: TextStyle(
+      color: Color(colors[1]),
+    ),
+    commentStyle: TextStyle(
+        color: Color(
+          colors[2],
+        ),
+        fontStyle: FontStyle.italic),
+    keywordStyle: TextStyle(
+      fontWeight: FontWeight.bold,
+      color: Color(
+        colors[3],
+      ),
+    ),
+    stringStyle: TextStyle(
+      color: Color(colors[4]),
+    ),
+    punctuationStyle: TextStyle(
+      color: Color(colors[5]),
+    ),
+    classStyle: TextStyle(
+      color: Color(colors[6]),
+    ),
+    constantStyle: TextStyle(
+      color: Color(colors[7]),
+    ),
+    backgroundColor: Color(colors[8]),
+  );
+  final TextStyle? baseStyle;
+  final TextStyle? numberStyle;
+  final TextStyle? commentStyle;
+  final TextStyle? keywordStyle;
+  final TextStyle? stringStyle;
+  final TextStyle? punctuationStyle;
+  final TextStyle? classStyle;
+  final TextStyle? constantStyle;
+  final Color? backgroundColor;
+}

packages/components/lib/toly_ui/code_view/code/language/dart_languge.dart

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+
+import 'language.dart';
+
+/// create by 张风捷特烈 on 2021/1/21
+/// contact me by email 1981462002@qq.com
+/// 说明:
+
+class DartLanguage extends Language{
+
+  const DartLanguage() : super('Dart');
+
+  static const List<String> _kDartKeywords = [
+  '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>  _kDartInTypes = [
+    'int', 'double', 'num', 'bool'
+  ];
+
+  @override
+  List<String> get keywords => _kDartKeywords;
+
+  @override
+  List<String> get inTypes => <String>[
+    'int', 'double', 'num', 'bool'
+  ];
+
+  @override
+  bool containsInTypes(String word) =>_kDartKeywords.contains(word);
+
+  @override
+  bool containsKeywords(String word)=>_kDartInTypes.contains(word);
+
+
+
+}

packages/components/lib/toly_ui/code_view/code/language/language.dart

@@ -0,0 +1,17 @@
+/// create by 张风捷特烈 on 2021/1/21
+/// contact me by email 1981462002@qq.com
+/// 说明:
+
+abstract class Language {
+  final String name;
+
+  const Language(this.name);
+
+  bool containsKeywords(String word);
+
+  bool containsInTypes(String word);
+
+  List<String> get keywords;
+
+  List<String> get inTypes;
+}