mirror of
https://github.com/chenasraf/mudblock.git
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Color parser (#1)
* wip: color parser * feat: better color parsing * feat: color parser working
This commit is contained in:
Chen Asraf
@@ -1,22 +1,361 @@
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import 'package:flutter/foundation.dart';
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import 'package:mudblock/core/consts.dart';
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import 'parser/parser.dart';
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class ColorUtils {
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static stripColor(String text) {
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return text
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// esc
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// .replaceAll(esc, '')
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// .replaceAll(r'^[', '')
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// color
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.replaceAll(RegExp(esc + r'\[\d*m'), '')
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// esc
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// .replaceAll(esc, '')
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// .replaceAll(r'^[', '')
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// color
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.replaceAll(RegExp(esc + colorPatternRaw), '')
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// color
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// .replaceAll(RegExp(r'\[\d+m'), '')
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// esc
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// .replaceAll(String.fromCharCode(0xff), '');
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// color
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// .replaceAll(RegExp(r'\[\d+m'), '')
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// esc
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// .replaceAll(String.fromCharCode(0xff), '');
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//
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;
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//
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;
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}
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static Iterable<ColoredText> split(String line) {
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// return line.split(RegExp(esc + colorPatternRaw)).map(
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// (raw) => ColoredText(
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// text: stripColor(raw),
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// color: 0,
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// raw: raw,
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// ),
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// );
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try {
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final result = <ColoredText>[];
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// final tokenizer = Tokenizer(StringReader(line));
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// var lexer = Lexer(tokenizer);
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// final tokens = lexer.lex();
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// for (var i = 0; i < tokens.length; i++) {
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// final token = tokens[i];
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// result.add(
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// ColoredText(
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// text: token.text,
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// fgColor: token.fgColor,
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// bgColor: token.bgColor,
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// raw: token.text,
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// ),
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// );
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// }
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final tokens = ColorParser(line).parse();
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for (final token in tokens) {
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result.add(
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ColoredText(
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text: token.text,
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fgColor: token.fgColor,
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bgColor: token.bgColor,
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raw: token.text,
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),
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);
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}
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debugPrint('line: $line');
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debugPrint('split: $result');
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return result;
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} catch (e, stack) {
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debugPrint('error at line: $line');
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debugPrint('split error: $e $stack');
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return [
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ColoredText(
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text: line,
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fgColor: 0,
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bgColor: 0,
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raw: line,
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)
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];
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}
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}
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}
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class ColoredText {
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final String text;
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final int fgColor;
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final int bgColor;
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final String raw;
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ColoredText({
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required this.text,
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required this.fgColor,
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required this.bgColor,
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required this.raw,
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});
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int get themedFgColor => _colorMap[fgColor] ?? fgColor;
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int get themedBgColor => _colorMap[bgColor] ?? bgColor;
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@override
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String toString() => 'ColoredText($text, $fgColor, $bgColor, $raw)';
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}
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/// map of xterm 256 colors to flutter color ints
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const _colorMap = {
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// 0: 0xFF000000,
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0: 0xFFFFFFFF,
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1: 0xFF800000,
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2: 0xFF008000,
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3: 0xFF808000,
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4: 0xFF000080,
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5: 0xFF800080,
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6: 0xFF008080,
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7: 0xFFC0C0C0,
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8: 0xFF808080,
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9: 0xFFFF0000,
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10: 0xFF00FF00,
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11: 0xFFFFFF00,
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12: 0xFF0000FF,
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13: 0xFFFF00FF,
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14: 0xFF00FFFF,
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15: 0xFFFFFFFF,
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16: 0xFF000000,
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17: 0xFF00005F,
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18: 0xFF000087,
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19: 0xFF0000AF,
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20: 0xFF0000D7,
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21: 0xFF0000FF,
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22: 0xFF005F00,
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23: 0xFF005F5F,
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24: 0xFF005F87,
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25: 0xFF005FAF,
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26: 0xFF005FD7,
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27: 0xFF005FFF,
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28: 0xFF008700,
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29: 0xFF00875F,
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30: 0xFF008787,
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31: 0xFF0087AF,
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32: 0xFF0087D7,
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33: 0xFF0087FF,
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34: 0xFF00AF00,
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35: 0xFF00AF5F,
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36: 0xFF00AF87,
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37: 0xFF00AFAF,
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38: 0xFF00AFD7,
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39: 0xFF00AFFF,
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40: 0xFF00D700,
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41: 0xFF00D75F,
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42: 0xFF00D787,
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43: 0xFF00D7AF,
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44: 0xFF00D7D7,
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45: 0xFF00D7FF,
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46: 0xFF00FF00,
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47: 0xFF00FF5F,
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48: 0xFF00FF87,
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49: 0xFF00FFAF,
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50: 0xFF00FFD7,
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51: 0xFF00FFFF,
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52: 0xFF5F0000,
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53: 0xFF5F005F,
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54: 0xFF5F0087,
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55: 0xFF5F00AF,
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56: 0xFF5F00D7,
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57: 0xFF5F00FF,
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58: 0xFF5F5F00,
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59: 0xFF5F5F5F,
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60: 0xFF5F5F87,
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61: 0xFF5F5FAF,
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62: 0xFF5F5FD7,
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63: 0xFF5F5FFF,
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64: 0xFF5F8700,
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65: 0xFF5F875F,
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66: 0xFF5F8787,
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67: 0xFF5F87AF,
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68: 0xFF5F87D7,
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69: 0xFF5F87FF,
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70: 0xFF5FAF00,
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71: 0xFF5FAF5F,
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72: 0xFF5FAF87,
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73: 0xFF5FAFAF,
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74: 0xFF5FAFD7,
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75: 0xFF5FAFFF,
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76: 0xFF5FD700,
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77: 0xFF5FD75F,
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78: 0xFF5FD787,
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79: 0xFF5FD7AF,
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80: 0xFF5FD7D7,
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81: 0xFF5FD7FF,
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82: 0xFF5FFF00,
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83: 0xFF5FFF5F,
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84: 0xFF5FFF87,
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85: 0xFF5FFFAF,
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86: 0xFF5FFFD7,
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87: 0xFF5FFFFF,
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88: 0xFF870000,
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89: 0xFF87005F,
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90: 0xFF870087,
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91: 0xFF8700AF,
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92: 0xFF8700D7,
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93: 0xFF8700FF,
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94: 0xFF875F00,
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95: 0xFF875F5F,
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96: 0xFF875F87,
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97: 0xFF875FAF,
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98: 0xFF875FD7,
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99: 0xFF875FFF,
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100: 0xFF878700,
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101: 0xFF87875F,
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102: 0xFF878787,
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103: 0xFF8787AF,
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104: 0xFF8787D7,
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105: 0xFF8787FF,
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106: 0xFF87AF00,
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107: 0xFF87AF5F,
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108: 0xFF87AF87,
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109: 0xFF87AFAF,
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110: 0xFF87AFD7,
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111: 0xFF87AFFF,
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112: 0xFF87D700,
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113: 0xFF87D75F,
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114: 0xFF87D787,
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115: 0xFF87D7AF,
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116: 0xFF87D7D7,
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117: 0xFF87D7FF,
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118: 0xFF87FF00,
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119: 0xFF87FF5F,
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120: 0xFF87FF87,
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121: 0xFF87FFAF,
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122: 0xFF87FFD7,
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123: 0xFF87FFFF,
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124: 0xFFAF0000,
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125: 0xFFAF005F,
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126: 0xFFAF0087,
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127: 0xFFAF00AF,
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128: 0xFFAF00D7,
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129: 0xFFAF00FF,
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130: 0xFFAF5F00,
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131: 0xFFAF5F5F,
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132: 0xFFAF5F87,
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133: 0xFFAF5FAF,
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134: 0xFFAF5FD7,
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135: 0xFFAF5FFF,
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136: 0xFFAF8700,
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137: 0xFFAF875F,
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138: 0xFFAF8787,
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139: 0xFFAF87AF,
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140: 0xFFAF87D7,
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141: 0xFFAF87FF,
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142: 0xFFAFAF00,
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143: 0xFFAFAF5F,
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144: 0xFFAFAF87,
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145: 0xFFAFAFAF,
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146: 0xFFAFAFD7,
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147: 0xFFAFAFFF,
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148: 0xFFAFD700,
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149: 0xFFAFD75F,
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150: 0xFFAFD787,
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151: 0xFFAFD7AF,
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152: 0xFFAFD7D7,
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153: 0xFFAFD7FF,
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154: 0xFFAFFF00,
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155: 0xFFAFFF5F,
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156: 0xFFAFFF87,
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157: 0xFFAFFFAF,
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158: 0xFFAFFFD7,
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159: 0xFFAFFFFF,
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160: 0xFFD70000,
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161: 0xFFD7005F,
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162: 0xFFD70087,
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163: 0xFFD700AF,
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164: 0xFFD700D7,
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165: 0xFFD700FF,
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166: 0xFFD75F00,
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167: 0xFFD75F5F,
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168: 0xFFD75F87,
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169: 0xFFD75FAF,
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170: 0xFFD75FD7,
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171: 0xFFD75FFF,
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172: 0xFFD78700,
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173: 0xFFD7875F,
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174: 0xFFD78787,
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175: 0xFFD787AF,
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176: 0xFFD787D7,
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177: 0xFFD787FF,
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178: 0xFFD7AF00,
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179: 0xFFD7AF5F,
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180: 0xFFD7AF87,
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181: 0xFFD7AFAF,
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182: 0xFFD7AFD7,
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183: 0xFFD7AFFF,
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184: 0xFFD7D700,
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185: 0xFFD7D75F,
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186: 0xFFD7D787,
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187: 0xFFD7D7AF,
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188: 0xFFD7D7D7,
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189: 0xFFD7D7FF,
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190: 0xFFD7FF00,
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191: 0xFFD7FF5F,
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192: 0xFFD7FF87,
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193: 0xFFD7FFAF,
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194: 0xFFD7FFD7,
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195: 0xFFD7FFFF,
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196: 0xFFFF0000,
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197: 0xFFFF005F,
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198: 0xFFFF0087,
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199: 0xFFFF00AF,
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200: 0xFFFF00D7,
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201: 0xFFFF00FF,
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202: 0xFFFF5F00,
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203: 0xFFFF5F5F,
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204: 0xFFFF5F87,
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205: 0xFFFF5FAF,
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206: 0xFFFF5FD7,
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207: 0xFFFF5FFF,
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208: 0xFFFF8700,
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209: 0xFFFF875F,
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210: 0xFFFF8787,
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211: 0xFFFF87AF,
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212: 0xFFFF87D7,
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213: 0xFFFF87FF,
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214: 0xFFFFAF00,
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215: 0xFFFFAF5F,
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216: 0xFFFFAF87,
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217: 0xFFFFAFAF,
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218: 0xFFFFAFD7,
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219: 0xFFFFAFFF,
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220: 0xFFFFD700,
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221: 0xFFFFD75F,
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222: 0xFFFFD787,
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223: 0xFFFFD7AF,
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224: 0xFFFFD7D7,
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225: 0xFFFFD7FF,
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226: 0xFFFFFF00,
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227: 0xFFFFFF5F,
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228: 0xFFFFFF87,
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229: 0xFFFFFFAF,
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230: 0xFFFFFFD7,
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231: 0xFFFFFFFF,
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232: 0xFF080808,
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233: 0xFF121212,
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234: 0xFF1C1C1C,
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235: 0xFF262626,
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236: 0xFF303030,
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237: 0xFF3A3A3A,
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238: 0xFF444444,
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239: 0xFF4E4E4E,
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240: 0xFF585858,
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241: 0xFF626262,
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242: 0xFF6C6C6C,
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243: 0xFF767676,
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244: 0xFF808080,
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245: 0xFF8A8A8A,
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246: 0xFF949494,
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247: 0xFF9E9E9E,
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248: 0xFFA8A8A8,
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249: 0xFFB2B2B2,
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250: 0xFFBCBCBC,
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251: 0xFFC6C6C6,
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252: 0xFFD0D0D0,
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253: 0xFFDADADA,
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254: 0xFFE4E4E4,
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255: 0xFFEEEEEE,
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};
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@@ -2,3 +2,4 @@ const newline = '\n';
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// const ansiEscapePattern = r'\x1B\[[0-?]*[ -/]*[@-~]';
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// final esc = String.fromCharCodes([0xff]);
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const esc = '\x1B';
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const colorPatternRaw = r'\[\d*m';
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74
lib/core/parser/interfaces.dart
Normal file
74
lib/core/parser/interfaces.dart
Normal file
@@ -0,0 +1,74 @@
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import '../consts.dart' as consts;
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enum Token {
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esc,
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colorStart,
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colorTerm,
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colorSeparator,
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literal,
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}
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class TokenValue {
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final Token token;
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final String raw;
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const TokenValue(this.token, this.raw);
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static const esc = TokenValue(Token.esc, consts.esc);
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static const colorStart = TokenValue(Token.colorStart, '[');
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static const colorSeparator = TokenValue(Token.colorSeparator, ';');
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static const colorTerm = TokenValue(Token.colorTerm, 'm');
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static const empty = TokenValue(Token.literal, '');
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TokenValue.literal(String raw) : this(Token.literal, raw);
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@override
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int get hashCode => raw.hashCode;
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@override
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bool operator ==(Object other) =>
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identical(this, other) ||
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other is TokenValue && runtimeType == other.runtimeType && token == other.token && raw == other.raw;
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@override
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String toString() => token != Token.esc ? '${token.name}($raw)' : token.name;
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}
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class LexerValue {
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String text;
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int fgColor;
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int bgColor;
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LexerValue(this.text, this.fgColor, this.bgColor);
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@override
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int get hashCode => text.hashCode ^ fgColor.hashCode ^ bgColor.hashCode;
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@override
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bool operator ==(Object other) =>
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identical(this, other) ||
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other is LexerValue &&
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runtimeType == other.runtimeType &&
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text == other.text &&
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fgColor == other.fgColor &&
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bgColor == other.bgColor;
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@override
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String toString() => 'Lex("$text", $fgColor:$bgColor)';
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}
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||||
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abstract class IReader<T> {
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T? read();
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T? peek();
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int get length;
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int get index;
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bool get isDone;
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}
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abstract class ITokenizer {
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List<TokenValue> tokenize();
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}
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abstract class ILexer {
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List<LexerValue> lex();
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}
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123
lib/core/parser/parser.dart
Normal file
123
lib/core/parser/parser.dart
Normal file
@@ -0,0 +1,123 @@
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import 'interfaces.dart';
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import 'reader.dart';
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import '../consts.dart' as consts;
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||||
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class ColorToken {
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String text;
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int fgColor;
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int bgColor;
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ColorToken(this.text, this.fgColor, this.bgColor);
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||||
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factory ColorToken.empty() => ColorToken('', 0, 0);
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||||
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bool get isEmpty => text.isEmpty;
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||||
bool get isNotEmpty => !isEmpty;
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||||
@override
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||||
String toString() => 'ColorToken("$text", $fgColor:$bgColor)';
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||||
|
||||
@override
|
||||
int get hashCode => text.hashCode ^ fgColor.hashCode ^ bgColor.hashCode;
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||||
|
||||
@override
|
||||
bool operator ==(Object other) =>
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||||
identical(this, other) ||
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||||
other is ColorToken &&
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runtimeType == other.runtimeType &&
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||||
text == other.text &&
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||||
fgColor == other.fgColor &&
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||||
bgColor == other.bgColor;
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||||
}
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||||
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||||
class ColorParser implements IReader {
|
||||
final IReader reader;
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||||
final _tokens = <TokenValue>[];
|
||||
|
||||
ColorParser._(this.reader);
|
||||
|
||||
factory ColorParser(String text) => ColorParser._(StringReader(text));
|
||||
|
||||
List<ColorToken> parse() {
|
||||
final lexed = <ColorToken>[];
|
||||
while (!reader.isDone) {
|
||||
final token = reader.read();
|
||||
var cur = getToken(token);
|
||||
lexed.add(cur);
|
||||
}
|
||||
return lexed;
|
||||
}
|
||||
|
||||
ColorToken getToken(String char) {
|
||||
var token = ColorToken.empty();
|
||||
switch (char) {
|
||||
case consts.esc:
|
||||
String? next;
|
||||
// keep reading until we hit the end of the escape sequence or the end of the string
|
||||
while (!reader.isDone) {
|
||||
next = reader.peek();
|
||||
if (next == consts.esc) {
|
||||
break;
|
||||
}
|
||||
reader.read();
|
||||
if (next == '[') {
|
||||
final color = consumeUntil('m');
|
||||
reader.read();
|
||||
final colors = color.split(';');
|
||||
if (colors.isNotEmpty) {
|
||||
token.fgColor = int.tryParse(colors[0]) ?? 0;
|
||||
}
|
||||
if (colors.length == 2) {
|
||||
token.bgColor = int.tryParse(colors[1]) ?? 0;
|
||||
}
|
||||
token.text = consumeUntil(consts.esc);
|
||||
return token;
|
||||
}
|
||||
if (next == null) {
|
||||
break;
|
||||
}
|
||||
token.text += next;
|
||||
}
|
||||
return token;
|
||||
default:
|
||||
token.text += char;
|
||||
return token;
|
||||
}
|
||||
}
|
||||
|
||||
String consumeUntil(String char) {
|
||||
String? next = reader.peek();
|
||||
if (next == null) {
|
||||
return '';
|
||||
}
|
||||
var result = '';
|
||||
while (!reader.isDone) {
|
||||
if (next == char) {
|
||||
break;
|
||||
}
|
||||
next = reader.peek();
|
||||
if (next == null) {
|
||||
break;
|
||||
}
|
||||
result += reader.read();
|
||||
next = reader.peek();
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
@override
|
||||
int index = 0;
|
||||
|
||||
@override
|
||||
bool get isDone => index >= reader.length;
|
||||
|
||||
@override
|
||||
peek() => _tokens[index];
|
||||
|
||||
@override
|
||||
read() => _tokens[index++];
|
||||
|
||||
@override
|
||||
int get length => _tokens.length;
|
||||
}
|
||||
|
||||
33
lib/core/parser/reader.dart
Normal file
33
lib/core/parser/reader.dart
Normal file
@@ -0,0 +1,33 @@
|
||||
import 'interfaces.dart';
|
||||
|
||||
class StringReader implements IReader<String> {
|
||||
final String input;
|
||||
|
||||
@override
|
||||
int index = 0;
|
||||
|
||||
StringReader(this.input);
|
||||
|
||||
@override
|
||||
int get length => input.length;
|
||||
|
||||
@override
|
||||
bool get isDone => index >= length;
|
||||
|
||||
@override
|
||||
String? peek() {
|
||||
if (isDone) {
|
||||
return null;
|
||||
}
|
||||
return input[index];
|
||||
}
|
||||
|
||||
@override
|
||||
String? read() {
|
||||
if (isDone) {
|
||||
return null;
|
||||
}
|
||||
return input[index++];
|
||||
}
|
||||
}
|
||||
|
||||
@@ -55,6 +55,7 @@ class GameStore extends ChangeNotifier {
|
||||
}
|
||||
|
||||
void onLine(String line) {
|
||||
debugPrint('onLine: $line');
|
||||
addLine(line);
|
||||
}
|
||||
|
||||
|
||||
@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
|
||||
import 'package:mudblock/core/color_utils.dart';
|
||||
import 'package:provider/provider.dart';
|
||||
|
||||
import '../core/consts.dart';
|
||||
import '../core/store.dart';
|
||||
|
||||
class HomePage extends StatefulWidget {
|
||||
@@ -22,6 +23,7 @@ class _HomePageState extends State<HomePage> with GameStoreMixin {
|
||||
final inputStyle = consoleStyle.copyWith(color: Colors.grey);
|
||||
|
||||
return Column(
|
||||
crossAxisAlignment: CrossAxisAlignment.stretch,
|
||||
children: [
|
||||
Expanded(
|
||||
child: Material(
|
||||
@@ -29,22 +31,28 @@ class _HomePageState extends State<HomePage> with GameStoreMixin {
|
||||
child: Consumer<GameStore>(
|
||||
builder: (context, store, child) {
|
||||
final lines = store.lines;
|
||||
return ListView.builder(
|
||||
return SingleChildScrollView(
|
||||
controller: store.scrollController,
|
||||
shrinkWrap: true,
|
||||
itemBuilder: (context, index) {
|
||||
return RichText(
|
||||
text: TextSpan(
|
||||
child: Padding(
|
||||
padding: const EdgeInsets.all(8.0),
|
||||
child: SelectableText.rich(
|
||||
TextSpan(
|
||||
children: [
|
||||
TextSpan(
|
||||
text: ColorUtils.stripColor(lines[index]),
|
||||
style: consoleStyle,
|
||||
),
|
||||
for (final line in lines) ...[
|
||||
for (final segment in ColorUtils.split(line))
|
||||
TextSpan(
|
||||
text: segment.text,
|
||||
style: consoleStyle.copyWith(color: Color(segment.themedFgColor)),
|
||||
),
|
||||
const TextSpan(
|
||||
text: newline,
|
||||
style: consoleStyle,
|
||||
),
|
||||
],
|
||||
],
|
||||
),
|
||||
);
|
||||
},
|
||||
itemCount: lines.length,
|
||||
),
|
||||
),
|
||||
);
|
||||
},
|
||||
),
|
||||
|
||||
24
test/color_parser_test.dart
Normal file
24
test/color_parser_test.dart
Normal file
@@ -0,0 +1,24 @@
|
||||
import 'package:flutter_test/flutter_test.dart';
|
||||
import 'package:mudblock/core/consts.dart';
|
||||
import 'package:mudblock/core/parser/parser.dart';
|
||||
|
||||
const inputs = [
|
||||
'$esc[32mYou are standing in a small clearing.$esc[0m',
|
||||
'You are standing in a small clearing.',
|
||||
'$esc[0m$esc[1m$esc[0m$esc[1m$esc[31mWelcome to SimpleMUD$esc[0m$esc[1m$esc[0m',
|
||||
'$esc[0m$esc[37m$esc[0m$esc[37m$esc[1m[$esc[0m$esc[37m$esc[1m$esc[32m10$esc[0m$esc[37m$esc[1m/10]$esc[0m$esc[37m$esc[0m'
|
||||
];
|
||||
|
||||
void main() {
|
||||
group('ColorParser', () {
|
||||
test('colored output 1', () {
|
||||
final input = inputs[0];
|
||||
final output = ColorParser(input).parse();
|
||||
expect(output, [
|
||||
ColorToken('You are standing in a small clearing.', 32, 0),
|
||||
ColorToken.empty(),
|
||||
]);
|
||||
});
|
||||
});
|
||||
}
|
||||
|
||||
@@ -11,20 +11,20 @@ import 'package:flutter_test/flutter_test.dart';
|
||||
import 'package:mudblock/main.dart';
|
||||
|
||||
void main() {
|
||||
testWidgets('Counter increments smoke test', (WidgetTester tester) async {
|
||||
// testWidgets('Counter increments smoke test', (WidgetTester tester) async {
|
||||
// Build our app and trigger a frame.
|
||||
await tester.pumpWidget(const MyApp());
|
||||
|
||||
// Verify that our counter starts at 0.
|
||||
expect(find.text('0'), findsOneWidget);
|
||||
expect(find.text('1'), findsNothing);
|
||||
|
||||
// Tap the '+' icon and trigger a frame.
|
||||
await tester.tap(find.byIcon(Icons.add));
|
||||
await tester.pump();
|
||||
|
||||
// Verify that our counter has incremented.
|
||||
expect(find.text('0'), findsNothing);
|
||||
expect(find.text('1'), findsOneWidget);
|
||||
});
|
||||
// await tester.pumpWidget(const MyApp());
|
||||
//
|
||||
// // Verify that our counter starts at 0.
|
||||
// expect(find.text('0'), findsOneWidget);
|
||||
// expect(find.text('1'), findsNothing);
|
||||
//
|
||||
// // Tap the '+' icon and trigger a frame.
|
||||
// await tester.tap(find.byIcon(Icons.add));
|
||||
// await tester.pump();
|
||||
//
|
||||
// // Verify that our counter has incremented.
|
||||
// expect(find.text('0'), findsNothing);
|
||||
// expect(find.text('1'), findsOneWidget);
|
||||
// });
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user