feat: yet another new parser architecture

src/parser/parsing_utils.h

@@ -1,100 +0,0 @@
-#ifndef PARSING_UTILS_H
-#define PARSING_UTILS_H
-
-#include "../lexer/lexer.h"
-
-// === Macros
-
-#define PEEK_TOKEN()                                                           \
-    peek_token(ctx);                                                           \
-    if (token == NULL)                                                         \
-    {                                                                          \
-        puts("Internal error: cannot get the following token");                \
-        return NULL;                                                           \
-    }
-
-#define POP_TOKEN()                                                            \
-    pop_token(ctx);                                                            \
-    if (token == NULL)                                                         \
-    {                                                                          \
-        puts("Internal error: cannot get the following token");                \
-        return NULL;                                                           \
-    }
-
-/* @brief Acts as the entry point of the parser, calls parse_list
- *
- * @code input = list '\n'
- *             | list EOF
- *             | '\n'
- *             | EOF
- *             ;
- */
-struct ast *parse_input(struct lexer_context *ctx);
-
-/* @brief: parses a list of [and_or] rules separated by semicolons and that
- *         ends by a newline
- *
- * @code list = and_or { ';' and_or } [ ';' ] ;
- */
-struct ast *parse_list(struct lexer_context *ctx);
-
-/* @brief Only parses a pipeline rule for the moment
- *
- * @code and_or = pipeline ;
- */
-struct ast *parse_and_or(struct lexer_context *ctx);
-
-/* @brief Only parses a command rule for the moment
- *
- * @code pipeline = command ;
- */
-struct ast *parse_pipeline(struct lexer_context *ctx);
-
-/* @brief Parses a simple command rule or a shell command rule depending on
- *        the first token.
- * @note
- *        TOKEN_WORD => simple_command
- *        TOKEN_IF => shell_command
- *
- * @code command = simple_command
- *               | shell_command
- *               ;
- */
-struct ast *parse_command(struct lexer_context *ctx);
-
-/* @brief Parses a simple list of words (command and arguments)
- *        ending by a separator
- *
- * @code simple_command = WORD { element } ;
- */
-struct ast *parse_simple_command(struct lexer_context *ctx);
-
-/* @brief Only parses if rules for the moment
- *
- * @code shell_command = if_rule ;
- */
-struct ast *parse_shell_command(struct lexer_context *ctx);
-
-/* @brief Parses a if rule (condition, then-clause, elif-clause, else-clause)
- *
- * @code if_rule = 'if' compound_list 'then' compound_list [else_clause] 'fi' ;
- */
-struct ast *parse_if_rule(struct lexer_context *ctx);
-
-/* @brief parses commands inside if/else clauses and returns the corresponding
- * AST list
- *
- * @code compound_list = {'\n'} and_or { ( ';' | '\n' ) {'\n'} and_or } [';']
- * {'\n'} ;
- */
-struct ast *parse_compound_list(struct lexer_context *ctx);
-
-/* @brief
- *
- * @code else_clause = 'else' compound_list
- *                   | 'elif' compound_list 'then' compound_list [else_clause]
- *                   ;
- */
-struct ast *parse_else_clause(struct lexer_context *ctx);
-
-#endif /* ! PARSING_UTILS_H */