basic parser impl, and basic client impl

parser.go

@@ -0,0 +1,108 @@
+// gorc project
+// Copyright (C) 2021 IllusionMan1212 and contributors
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this program; if not, see https://www.gnu.org/licenses.
+
+package main
+
+import (
+	"fmt"
+	"strings"
+)
+
+func parseIRCMessage(line string) IRCMessage {
+	ircMessage := &IRCMessage{}
+
+	switch line[0] {
+	case '@':
+		substrs := strings.SplitN(line, " ", 4)
+
+		tagsSlice := make(map[string]string)
+
+		tags := strings.Split(substrs[0][1:], ";")
+
+		for _, tag := range tags {
+			splitTag := strings.Split(tag, "=")
+
+			// TOOD: some tags don't have an "=" and they're basically considered "true"
+			tagsSlice[splitTag[0]] = splitTag[1]
+		}
+
+		ircMessage := IRCMessage{
+			Tags:    tagsSlice,
+			Source:  substrs[1][1:],
+			Command: substrs[2],
+		}
+
+		ircMessage.Tags = tagsSlice
+		ircMessage.Source = substrs[1][1:]
+		ircMessage.Command = substrs[2]
+
+		fmt.Printf("%s\n", ircMessage.Tags)
+		fmt.Printf("%s\n", ircMessage.Source)
+		fmt.Printf("%s\n", ircMessage.Command)
+		fmt.Printf("%s\n", ircMessage.Parameters)
+		// TODO:
+
+		break
+	case ':':
+		substrs := strings.SplitN(line, " ", 3)
+
+		parameters := make([]string, 0)
+
+		// if parameters exist
+		if len(substrs) > 2 {
+			params := strings.SplitN(substrs[2], " :", 2)
+
+			parameters = strings.Split(params[0], " ")
+			// TODO: parameters can be empty. this is denoted by a ":"
+
+			// if there's a final space-included param
+			if len(params) > 1 {
+				parameters = append(parameters, params[1])
+			}
+		}
+
+		ircMessage.Source = substrs[0][1:]
+		ircMessage.Command = substrs[1]
+		ircMessage.Parameters = parameters
+
+		break
+	default:
+		substrs := strings.SplitN(line, " ", 2)
+
+		parameters := make([]string, 0)
+
+		// if parameters exist
+		if len(substrs) > 1 {
+			params := strings.SplitN(substrs[1], " :", 2)
+
+			parameters = strings.Split(params[0], " ")
+			// TODO: parameters can be empty. this is denoted by a ":"
+
+			// if there's a trailing parameter
+			if len(params) > 1 {
+				parameters = append(parameters, params[1])
+			}
+		}
+
+		ircMessage.Source = ""
+		ircMessage.Command = substrs[0]
+		ircMessage.Parameters = parameters
+
+		break
+	}
+
+	return *ircMessage
+}