added support for if elif else statements by returning a boolean

from the identifier syntax parsing

server/src/parsing/keyword_parse.rs

@@ -12,6 +12,7 @@ use crate::
 	info,
 	mpsc::Receiver,
 };
+use super::identifier_parse;
 
 pub fn keyword_parse(
 	tokens: &[tokenise::Token],
@@ -19,6 +20,7 @@ pub fn keyword_parse(
 	mut index: usize,
 	happening_queue: &Arc<Mutex<VecDeque<api::DataToSend>>>,
 	labels: &HashMap<String, usize>,
+	variables: &mut HashMap<String, tokenise::Value>,
 	rx: &Receiver<(usize,String)>,
 )
 -> Result<usize, String>
@@ -41,6 +43,60 @@ pub fn keyword_parse(
 			};
 			index = choice;
 		},
+		"if" =>
+		{
+			// TODO can this go in a function?
+			let mut keyword = "if".to_string();
+			while keyword == "if".to_string() || keyword == "elif".to_string() || keyword == "else".to_string() // TODO less beefy??
+			{
+				index += 1;
+				let mut result: bool = true;
+				if keyword != "else"
+				{
+					let identifier = tokenise::get_identifier_token(tokens, index)
+						.map(|err| err)?;
+					(index,result) = match identifier_parse::identifier_parse(index+1, &identifier, tokens, variables)
+					{
+						Ok((increment, result)) => (increment,result),
+						Err((err,increment)) =>
+						{
+							warn!("{err}");
+							(increment,false)
+						}
+					}
+				}
+				if result { index += 1; break; }
+				else
+				{
+					index = tokenise::get_closing_index(tokens, index)
+						.map(|err| err)?;
+					index += 1;
+					keyword = match tokenise::get_keyword_token(tokens,index)
+					{
+						Ok(keyword) => keyword,
+						Err(_) => break,
+					}
+				}
+			}
+		},
+		"else" =>
+		{
+			index += 1;
+			index = tokenise::get_closing_index(tokens, index)
+				.map(|err| err)?;
+		},
+		"elif" =>
+		{
+			let current = "elif".to_string();
+			loop
+			{
+				index += 1;
+				let Ok(new_index) = tokenise::get_closing_index(tokens, index)
+				else { continue; };
+				index = new_index;
+				break
+			}
+		},
 		"or" =>
 		{
 			info!("OR command, jumping over");