From b1da06dc11f358f0180f0776a92f3f3579a9d963 Mon Sep 17 00:00:00 2001
From: Mauro Junior <45118493+jetrotal@users.noreply.github.com>
Date: Fri, 10 Nov 2023 09:18:03 -0300
Subject: [PATCH] Multiline interpreter + major refactor

Managed to make it work, but the code is a bit messy and its syntax is not very flexible;

Update dynrpg_easyrpg.cpp
---
 src/dynrpg_easyrpg.cpp | 81 ++++++++++++++++++++++++++++++++----------
 src/game_dynrpg.cpp    | 39 +++++++++++++++++++-
 2 files changed, 100 insertions(+), 20 deletions(-)

diff --git a/src/dynrpg_easyrpg.cpp b/src/dynrpg_easyrpg.cpp
index 57f24aad01a..726e181bb6b 100644
--- a/src/dynrpg_easyrpg.cpp
+++ b/src/dynrpg_easyrpg.cpp
@@ -17,6 +17,7 @@
 
 // Headers
 #include <map>
+#include <numeric>
 
 #include "dynrpg_easyrpg.h"
 #include "string_view.h"
@@ -99,42 +100,84 @@ bool DynRpg::EasyRpgPlugin::EasyRaw(dyn_arg_list args, Game_Interpreter* interpr
 	Constants constList;
 
 	const std::string func = "easyrpg_raw";
-	bool okay = false;
+	
 	int codeArgIndex = 0;
 	int stringArgIndex = 1;
+	int indentArgIndex = -1;
+
+	std::string tempArg;
 	bool endOfLine = false;
+	bool okay = false;
 
 	lcf::rpg::EventCommand cmd;
+	lcf::rpg::EventCommand _cmd;
 	std::vector<int32_t> outputArgs;
 	std::vector<lcf::rpg::EventCommand> cmdList;
 
 	for (size_t i = 0; i < args.size(); ++i) {
-		if (i == args.size() - 1) {
-			if (args[i].back() == ';') args[i] = args[i].substr(0, args[i].length() - 1);
-			endOfLine = true;
+		
+		bool valid = !args[i].empty();
+
+		if (valid && args[i].front() == '[') args[i] = args[i].substr(1);
+		if (valid && args[i].back() == ']') {
+			args[i] = args[i].substr(0, args[i].length() - 1);
+			indentArgIndex = i + 1;
 		}
 
-		// TODO: Implement multi-line command interpretation split by ';'.
+		if (i == args.size() - 1) endOfLine = true;
+		
 
-		if (i == codeArgIndex) {
-			if (args[i].front() == '@') args[i] = constList.get("EventCode", args[i].substr(1));
-			std::tie(cmd.code) = DynRpg::ParseArgs<int>(func, args, &okay);
-		}
-		else if (i == stringArgIndex) {
-			auto [stringArg] = DynRpg::ParseArgs<std::string>(func, args.subspan(i), &okay);
-			cmd.string = lcf::DBString(stringArg);
-		}
-		else {
-			if (args[i].front() == '@') args[i] = constList.get("DestinyScript", args[i].substr(1));
-			auto [intArg] = DynRpg::ParseArgs<int>(func, args.subspan(i), &okay);
-			outputArgs.push_back(intArg);
+		else if (args[i] == ";") {
+			endOfLine = !args[i + 1].empty();
+			valid = 0;
 		}
 
+		if (valid) {
+			if (i == codeArgIndex)
+			{
+				size_t start_pos = args[i].find_first_not_of(" \t\r\n");
+				if (start_pos != std::string::npos)
+					args[i] = args[i].substr(start_pos);
+
+				Output::Debug("code ----> {}", args[i]);
+
+				if (args[i].front() == '@')
+					args[i] = constList.get("EventCode", args[i].substr(1));
+				std::tie(cmd.code) = DynRpg::ParseArgs<int>(func, args.subspan(i), &okay);
+			}
+			else if (i == stringArgIndex)
+			{
+				Output::Debug("str ----> {}", args[i]);
+				auto [stringArg] = DynRpg::ParseArgs<std::string>(func, args.subspan(i), &okay);
+				cmd.string = lcf::DBString(stringArg);
+			}
+			else
+			{
+				if (args[i].front() == '@')
+					args[i] = constList.get("DestinyScript", args[i].substr(1));
+				auto [intArg] = DynRpg::ParseArgs<int>(func, args.subspan(i), &okay);
+
+				if (indentArgIndex == i) {
+					Output::Debug("idt ----> {}", args[i]);
+					indentArgIndex = -1;
+					cmd.indent = intArg;
+				}
+				else
+					Output::Debug("pls ----> {}", args[i]), outputArgs.push_back(intArg);
+			}
+		}
 		if (endOfLine) {
-			codeArgIndex = i + 1;
-			stringArgIndex = i + 2;
+			Output::Debug("com ----> {}\n\n", cmd.code);
 			cmd.parameters = lcf::DBArray<int32_t>(outputArgs.begin(), outputArgs.end());
 			cmdList.push_back(cmd);
+			outputArgs.clear();
+
+			cmd = _cmd;
+
+			codeArgIndex = i + 1;
+			stringArgIndex = i + 2;
+			
+			endOfLine = false;
 		}
 
 		if (!okay) return true;
diff --git a/src/game_dynrpg.cpp b/src/game_dynrpg.cpp
index 2b9e65e8d7a..68ba7087a08 100644
--- a/src/game_dynrpg.cpp
+++ b/src/game_dynrpg.cpp
@@ -314,7 +314,44 @@ std::string DynRpg::ParseCommand(std::string command, std::vector<std::string>&
 					token.str("");
 					break;
 			}
-		} else {
+		}
+		else if (chr == ';') {
+			switch (mode) {
+			case ParseMode_Function:
+				// End of function token
+				function_name = Utils::LowerCase(token.str());
+				if (function_name.empty()) {
+					// empty function name
+					Output::Warning("Empty DynRPG function name");
+					return {};
+				}
+				token.str("");
+				// Empty arg
+				args.emplace_back("");
+				mode = ParseMode_WaitForArg;
+				break;
+			case ParseMode_WaitForComma:
+				mode = ParseMode_WaitForArg;
+				break;
+			case ParseMode_WaitForArg:
+				
+				// Empty arg
+				args.emplace_back("");
+				break;
+			case ParseMode_String:
+				token << chr;
+				break;
+			case ParseMode_Token:
+				tmp = ParseToken(token.str(), function_name);
+				args.emplace_back(tmp);
+				if (function_name == "easyrpg_raw") args.emplace_back(";");
+				// already on a comma
+				mode = ParseMode_WaitForArg;
+				token.str("");
+				break;
+			}
+		}
+		else {
 			// Anything else that isn't special purpose
 			switch (mode) {
 				case ParseMode_Function: