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1 files changed, 187 insertions, 0 deletions
| -rw-r--r-- | homework/81709/JSCompiler.SyntaxHighlighter/SyntaxHighlighter.cs | 187 |
diff --git a/homework/81709/JSCompiler.SyntaxHighlighter/SyntaxHighlighter.cs b/homework/81709/JSCompiler.SyntaxHighlighter/SyntaxHighlighter.cs new file mode 100644 index 0000000..fd8572f --- /dev/null +++ b/homework/81709/JSCompiler.SyntaxHighlighter/SyntaxHighlighter.cs @@ -0,0 +1,187 @@ +using System; +using System.Collections.Generic; +using System.Linq; +using System.Text; +using System.Threading.Tasks; +using System.IO; +using JSCompiler.Core; + +namespace JSCompiler.SyntaxHighlighter +{ + public static class SyntaxHighlighter + { + private static readonly string HTML = + @"<!DOCTYPE html> +<html> +<head> +{0} +<title> {1} </title> +</head> +<body> {2} </body></html>"; + + private static readonly string DEFAULT_CSS = + @"<style> +body { + font-size: 20px; + font-family: ""Verdana""; +} +.number { + color: Orange; +} +.string { + color: Gray; + white-space: pre-wrap; +} +.keyword { + color: Blue; +} +.identifier { + color: Black; +} +.operator { + color: DarkBlue; +} +.comment { + color: Green; + font-style: italic; + white-space: pre-wrap; +} + +.reserved { + color: MediumVioletRed; +} + +.undefined{ + color: Black; +} + +.default { + color: DarkBlue; +} +</style>"; + + private static IEnumerable<TokenType> KEYWORDS = ReservedStrings.KeywordsAsMap().Values; + + private static IEnumerable<TokenType> OTHER_RESERVED = ReservedStrings.OthersAsMap().Values; + + private static IEnumerable<TokenType> ONE_SYMBOL_OPERATORS = new List<TokenType> + { + TokenType.Minus, // - + TokenType.Plus, // + + TokenType.Star, // * + TokenType.Division, // / + TokenType.Modulo, // % + TokenType.BitwiseNot, // ~ + TokenType.BitwiseAnd, // & + TokenType.BitwiseXor, // ^ + TokenType.BitwiseOr, // | + TokenType.QuestionMark, // ? + TokenType.Bang, // ! + TokenType.Equal, // = + TokenType.Greater, // > + TokenType.Less, // < + TokenType.Backslash, // \ + }; + + private static IEnumerable<TokenType> MULT_SYMBOL_OPERATORS = new List<TokenType> + { + TokenType.NotEqual, // != + TokenType.EqualEqual, // == + TokenType.StrictEqual, // === + TokenType.StrictNotEqual, // !== + TokenType.GreaterEqual, // >= + TokenType.LessEqual, // <= + TokenType.MinusMinus, // -- + TokenType.PlusPlus, // ++ + TokenType.LeftShift, // << + TokenType.RightShift, // >> + TokenType.LogicalAnd, // && + TokenType.LogicalOr, // || + TokenType.StarEqual, // *= + TokenType.DivideEqual, // /= + TokenType.ModuloEqual, // %= + TokenType.PlusEqual, // += + TokenType.MinusEqual, // -= + TokenType.LeftShiftEqual, // <<= + TokenType.RightShiftEqual, // >>= + TokenType.BitwiseAndEqual, // &= + TokenType.BitwiseXorEqual, // ^= + TokenType.BitwiseOrEqual, // |= + }; + + public static void GenerateHtml(IEnumerable<Token> tokens, string fileName, string css = null) + { + if (css == null) css = DEFAULT_CSS; + + string code = ""; + IEnumerator<Token> tokenEnum = tokens.GetEnumerator(); + if (!tokenEnum.MoveNext()) return; + Token cur; + do + { + cur = tokenEnum.Current; + TokenType type = cur.Type; + + switch (type) + { + case TokenType.Whitespace: + code += " "; + break; + case TokenType.Tab: + code += " " + " " + " " + " "; + break; + case TokenType.NewLine: + code += "<br>"; + break; + case TokenType.Number: + code += "<span class=\"number\">" + ((NumToken)cur).Num + "</span>"; + break; + case TokenType.String: + code += "<span class=\"string\">" + ((WordToken)cur).Lexeme + "</span>"; + break; + case TokenType.Identifier: + code += "<span class=\"identifier\">" + ((WordToken)cur).Lexeme + "</span>"; + break; + case TokenType.Comment: + code += "<span class=\"comment\">" + ((WordToken)cur).Lexeme + "</span>"; + break; + case TokenType.Error: + code += "<span class=\"undefined\">" + ((WordToken)cur).Lexeme + "</span>"; + break; + + default: + if (KEYWORDS.Contains(type)) + { + code += "<span class=\"keyword\">" + ((WordToken)cur).Lexeme + "</span>"; + } + else if(OTHER_RESERVED.Contains(type)) + { + code += "<span class=\"reserved\">" + ((WordToken)cur).Lexeme + "</span>"; + } + else if (ONE_SYMBOL_OPERATORS.Contains(type)) + { + code += "<span class=\"operator\">" + cur.ToString() + "</span>"; + } + else if (MULT_SYMBOL_OPERATORS.Contains(type)) + { + code += "<span class=\"operator\">" + ((WordToken)cur).Lexeme + "</span>"; + } + else + { + code += "<span class=\"default\">" + cur.ToString() + "</span>"; + break; + } + break; + } + } + while (tokenEnum.MoveNext() && tokenEnum.Current.Type != TokenType.EOF); + + string shouldWrite = string.Format(HTML, css, fileName, code); + + using (StreamWriter writer = new StreamWriter(fileName)) + { + writer.Write(shouldWrite); + } + } + } +} |