From 04fd13b801c8b44b105da412a0dfaebe908b2851 Mon Sep 17 00:00:00 2001
From: Ahurac <ahurac@mailbox.org>
Date: Sun, 14 Apr 2024 12:07:42 +0200
Subject: [PATCH] parser : gestion des whitespaces

---
 src/parser.rs | 25 ++++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/src/parser.rs b/src/parser.rs
index d258fbb..4e9a378 100644
--- a/src/parser.rs
+++ b/src/parser.rs
@@ -1,8 +1,31 @@
 use crate::command::command_builder::CommandBuilder;
 use crate::command::command_sequence::CommandSequence;
 
+fn build_argv(characters: &mut Vec<char>, current_arg: &mut String) -> Vec<String> {
+    if characters.is_empty() {
+        vec![]
+    } else {
+        let current_char = characters.pop().unwrap();
+
+        if current_char.is_whitespace() {
+            if !current_arg.is_empty() {
+                let mut argv: Vec<String> = vec![current_arg.clone()];
+                argv.append(&mut build_argv(characters, &mut String::from("")));
+
+                argv
+            } else {
+                build_argv(characters, current_arg)
+            }
+        } else {
+            current_arg.push(current_char);
+            build_argv(characters, current_arg)
+        }
+    }
+}
+
 pub fn parse_command_line(line: String) -> Option<CommandSequence> {
-    let argv: Vec<String> = line.split_whitespace().map(|s| s.to_string()).collect();
+    let mut characters: Vec<char> = line.chars().rev().collect();
+    let argv = build_argv(&mut characters, &mut String::from(""));
 
     if !argv.is_empty() {
         let command = CommandBuilder::new(argv).build();