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feat(parser): redirections types handled in grammar init

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This commit is contained in:
Matteo Flebus 2026-01-26 18:35:48 +01:00
parent 787b1aed35
commit 23f6815162
1 changed files with 17 additions and 6 deletions
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23
src/parser/grammar.c
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@ -73,6 +73,20 @@ static bool init_firsts_map(void)
return true; return true;
} }
/* @brief: add all the redirection token_types to the first of [rule].
* this also contains IONUMBER
*/
static void add_first_redir(enum rule rule)
{
add_first(rule, TOKEN_IONUMBER);
add_first(rule, TOKEN_REDIR_LEFT);
add_first(rule, TOKEN_REDIR_RIGHT);
add_first(rule, TOKEN_REDIR_LEFT_RIGHT);
add_first(rule, TOKEN_REDIR_DOUBLE_RIGHT);
add_first(rule, TOKEN_REDIR_LEFT_AMP);
add_first(rule, TOKEN_REDIR_RIGHT_PIPE);
}
// === Functions // === Functions
bool grammar_init(void) bool grammar_init(void)
@ -114,14 +128,11 @@ bool grammar_init(void)
add_first(RULE_ELSE_CLAUSE, TOKEN_ELIF); add_first(RULE_ELSE_CLAUSE, TOKEN_ELIF);
add_first(RULE_ELEMENT, TOKEN_WORD); add_first(RULE_ELEMENT, TOKEN_WORD);
add_first(RULE_ELEMENT, TOKEN_IONUMBER); add_first_redir(RULE_ELEMENT);
add_first(RULE_ELEMENT, TOKEN_REDIRECTION);
add_first(RULE_REDIRECTION, TOKEN_IONUMBER); add_first_redir(RULE_REDIRECTION);
add_first(RULE_REDIRECTION, TOKEN_REDIRECTION);
add_first(RULE_PREFIX, TOKEN_IONUMBER); add_first_redir(RULE_PREFIX);
add_first(RULE_PREFIX, TOKEN_REDIRECTION);
return true; return true;
} }