From 93cd8cac8a616ae13bd42dcbee0bb9da278eb49d Mon Sep 17 00:00:00 2001
From: Ralitsa Velikova <rherince@gmail.com>
Date: Wed, 7 Nov 2018 14:26:16 +0200
Subject: Solution to first homework (#25)

* Add token types enum for Lexer

* Local test if I've correctly switched from https to ssh

* Adds initial Lexer logic; Reuses JSImpl's Lexer logic; Still needs refactoring;

* Adds README.md

* Adds README.md

* Adds tokenization of  strings and a few operators

* Adds some operators

* Adds highlighter and sample for future testing

* Adds runes & fixes double whitespace bug

* API fix, premake, solution

* Update README.md

* Delete HL.sln

* Delete HL.vcxproj
---
 homework/81013/go2html/Highlighter.cpp | 219 +++++++++++++++++++++++++++++++++
 1 file changed, 219 insertions(+)
 create mode 100644 homework/81013/go2html/Highlighter.cpp

(limited to 'homework/81013/go2html/Highlighter.cpp')

diff --git a/homework/81013/go2html/Highlighter.cpp b/homework/81013/go2html/Highlighter.cpp
new file mode 100644
index 0000000..8295610
--- /dev/null
+++ b/homework/81013/go2html/Highlighter.cpp
@@ -0,0 +1,219 @@
+#include <iostream>
+#include <fstream>
+
+#include "CommonTypes.h"
+#include "Lexer.h"
+#include "Highlighter.h"
+
+#define KEYWORD_COLOR "#ad42f4"
+#define IDENTIFIER_COLOR "#41c4f4"
+#define OPERATOR_COLOR "#f49541"
+#define NUMBER_COLOR "#bab103"
+#define STRING_COLOR "#ff11bf"
+#define RUNE_COLOR "#5abc00"
+#define CONST_COLOR "#f94040"
+#define	COMMENT_COLOR "#0b8700"
+
+namespace
+{
+	void PrintToken(
+			const Token& token,
+			const IPLString& className,
+			std::ostream& out)
+	{
+		switch (token.Type)
+		{
+		case TokenType::Whitespace:
+			out << token.Lexeme;
+			break;
+		case TokenType::Float:
+		case TokenType::DecimalInteger:
+		case TokenType::ImaginaryNum:
+			out << "<span class=\"" << className << "\">" << token.Number << "</span>";
+		default:
+			out << "<span class=\"" << className << "\">" << token.Lexeme << "</span>";
+			break;
+		}
+	}
+}
+
+IPLResult Highlight(std::ifstream& infile, std::ofstream& out)
+{
+	out <<
+	"<html>\n"
+	"<head>\n"
+	"<style>\n"
+		".keyword {\n"
+  			"color: " << KEYWORD_COLOR << ";\n"
+		"}\n"
+		"\n"
+		".identifier {\n"
+  			"color: " << IDENTIFIER_COLOR << ";\n"
+		"}\n"
+		"\n"
+		".operator {\n"
+  			"color: " << OPERATOR_COLOR << ";\n"
+		"}\n"
+		"\n"
+		".number {\n"
+  			"color: " << NUMBER_COLOR << ";\n"
+		"}\n"
+		"\n"
+		".string {\n"
+  			"color: " << STRING_COLOR << ";\n"
+		"}\n"
+		"\n"
+		".rune {\n"
+			"color: " << RUNE_COLOR << ";\n"
+		"}\n"
+		"\n"
+		".const {\n"
+  			"color: " << CONST_COLOR << ";\n"
+		"}\n"
+		"\n"
+		".comment {\n"
+  			"color: " << COMMENT_COLOR << ";\n"
+		"}\n"
+	"</style>\n"
+	"</head>\n"
+	"<body><pre>\n" << std::endl;
+
+	std::string line;
+	std::vector<Token> tokens;
+
+	while (std::getline(infile, line))
+	{
+		IPLResult result = Tokenize(line.c_str(), tokens, {true, true});
+		if (!result.IsSuccessful)
+		{
+			return result;
+		}
+
+		for (auto& token : tokens)
+		{
+			switch (token.Type)
+			{
+				case TokenType::Break:
+				case TokenType::Default:
+				case TokenType::Func:
+				case TokenType::Interface:
+				case TokenType::Select:
+				case TokenType::Case:
+				case TokenType::Defer:
+				case TokenType::Go:
+				case TokenType::Map:
+				case TokenType::Struct:
+				case TokenType::Chan:
+				case TokenType::Else:
+				case TokenType::Goto:
+				case TokenType::Package:
+				case TokenType::Switch:
+				case TokenType::Const:
+				case TokenType::Fallthrough:
+				case TokenType::If:
+				case TokenType::Range:
+				case TokenType::Type:
+				case TokenType::Continue:
+				case TokenType::For:
+				case TokenType::Import:
+				case TokenType::Return:
+				case TokenType::Var:
+
+					PrintToken(token, "keyword", out);
+					break;
+
+				case TokenType::Plus:
+				case TokenType::Minus:
+				case TokenType::Star:
+				case TokenType::Division:
+				case TokenType::Modulo:
+
+				case TokenType::NOT:
+				case TokenType::BitwiseAND:
+				case TokenType::BitwiseOR:
+				case TokenType::BitwiseXOR:
+				case TokenType::BitClear:
+				case TokenType::ShiftLeft:
+				case TokenType::ShiftRight:
+
+				case TokenType::PlusEqual:
+				case TokenType::MinusEqual:
+				case TokenType::MultEqual:
+				case TokenType::DivEqual:
+				case TokenType::ModuloEqual:
+
+				case TokenType::ConditionalAND:
+				case TokenType::ConditionalOR:
+				case TokenType::ReceiveOperator:
+				case TokenType::PlusPlus:
+				case TokenType::MinusMinus:
+
+				case TokenType::Equal:
+				case TokenType::Less:
+				case TokenType::Greater:
+
+				case TokenType::NOTEqual:
+				case TokenType::LessEqual:
+				case TokenType::GreaterEqual:
+
+				case TokenType::Assignment:
+				case TokenType::ShortAssignment:
+
+				case TokenType::Variadic:
+
+				case TokenType::LeftParen:
+				case TokenType::RightParen:
+				case TokenType::LeftSquareBracket:
+				case TokenType::RightSquareBracket:
+				case TokenType::LeftBrace:
+				case TokenType::RightBrace:
+
+				case TokenType::Comma:
+				case TokenType::Dot:
+
+				case TokenType::Semicolon:
+				case TokenType::Colon:
+
+					PrintToken(token, "operator", out);
+					break;
+
+				case TokenType::Float:
+				case TokenType::DecimalInteger:
+				case TokenType::ImaginaryNum:
+
+					PrintToken(token, "number", out);
+					break;
+
+				case TokenType::String:
+
+					PrintToken(token, "string", out);
+					break;
+
+				case TokenType::True:
+				case TokenType::False:
+				case TokenType::Nil:
+
+					PrintToken(token, "const", out);
+					break;
+
+				case TokenType::Comment:
+
+					PrintToken(token, "comment", out);
+					break;
+
+				default:
+					PrintToken(token, "", out);
+					break;
+			}
+		}
+
+		out << std::endl;
+		tokens.clear();
+	}
+
+	out <<
+	"</pre></body>\n"
+	"</html>" << std::endl;
+
+	return {true, IPLError() };
+}
\ No newline at end of file
-- 
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