feat: toujours les mêmes qui font les pipes. Plus de assert dans ASTs (pour des raisons évidentes de stabilité du code) et nouveaux types (AST_PIPE et AST_NEG), + modifs random dans le parser

src/lexer/lexer.h

@@ -4,6 +4,12 @@
 #include <sys/types.h>
 
 #include "lexer_utils.h"
+
+/*
+ * @brief returns true if token is a redir type, false otherwise
+ */
+bool is_token_redir(struct token *token);
+
 /*
  * @brief: returns the next (newly allocated) token without consuming it.
  *         if end of input is reached, returns a token of type TOKEN_EOF.

src/lexer/lexer_utils.c

@@ -178,6 +178,25 @@ static bool is_end_of_line(char c)
     return c == EOF || c == '\n';
 }
 
+// === Functions
+
+bool is_token_redir(struct token *token)
+{
+    switch (token->type)
+    {
+    case TOKEN_REDIR_LEFT:
+    case TOKEN_REDIR_RIGHT:
+    case TOKEN_REDIR_LEFT_RIGHT:
+    case TOKEN_REDIR_DOUBLE_RIGHT:
+    case TOKEN_REDIR_LEFT_AMP:
+    case TOKEN_REDIR_RIGHT_AMP:
+    case TOKEN_REDIR_RIGHT_PIPE:
+        return true;
+    default:
+        return false;
+    }
+}
+
 bool is_special_char(char *stream, ssize_t i)
 {
     char c = stream[i];

src/lexer/lexer_utils.h

@@ -31,16 +31,13 @@ enum lexing_mode
 
 enum token_type
 {
-    // Special characters
+    // Blanks
     TOKEN_NULL = 0,
     TOKEN_EOF,
     TOKEN_WORD,
     TOKEN_NEWLINE,
 
-    // WARNING: quote and double quote should never be used inside a token.
-    TOKEN_QUOTE,
-    TOKEN_DOUBLE_QUOTE,
-
+    // SPecial characters
     TOKEN_GRAVE,
     TOKEN_SEMICOLON,
     TOKEN_COMMENT,
@@ -51,8 +48,14 @@ enum token_type
     TOKEN_RIGHT_PAREN,
     TOKEN_LEFT_BRACKET,
     TOKEN_RIGHT_BRACKET,
+    TOKEN_PIPE,
+    TOKEN_NEGATION, // TODO handle
 
-    // redirections
+    // TODO merge into one and use the data field
+    // (Too difficult to handle in the parser because of firsts)
+    // TOKEN_REDIRECTION
+    // 
+    // Redirections
     TOKEN_REDIR_LEFT,
     TOKEN_REDIR_RIGHT,
     TOKEN_REDIR_LEFT_RIGHT,
@@ -62,7 +65,6 @@ enum token_type
     TOKEN_REDIR_RIGHT_PIPE,
 
     TOKEN_IONUMBER,
-    TOKEN_PIPE,
 
     // Keywords
     TOKEN_IF,