diff options
Diffstat (limited to 'src/parser')
| -rw-r--r-- | src/parser/parsed.c | 18 | ||||
| -rw-r--r-- | src/parser/parser.c | 42 |
2 files changed, 39 insertions, 21 deletions
diff --git a/src/parser/parsed.c b/src/parser/parsed.c index a2b569a..7b82832 100644 --- a/src/parser/parsed.c +++ b/src/parser/parsed.c @@ -6,7 +6,7 @@ /* By: charles <me@cacharle.xyz> +#+ +:+ +#+ */ /* +#+#+#+#+#+ +#+ */ /* Created: 2020/08/27 20:27:42 by charles #+# #+# */ -/* Updated: 2020/10/09 14:08:46 by cacharle ### ########.fr */ +/* Updated: 2020/10/09 16:00:02 by cacharle ### ########.fr */ /* */ /* ************************************************************************** */ @@ -38,3 +38,19 @@ t_parsed *parsed_error(const char *format, ...) ft_putchar_fd('\n', STDERR_FILENO); return (err); } + +t_parsed *parsed_expected(void) +{ + return (parsed_error("syntax error expected token")); +} + +t_parsed *parsed_unexpected(char *content) +{ + return (parsed_error("syntax error near unexpected token `%s'", content)); +} + +void parsed_destroy(t_parsed *parsed) +{ + ast_destroy(parsed->ast); + free(parsed); +} diff --git a/src/parser/parser.c b/src/parser/parser.c index 8d5a0aa..be71097 100644 --- a/src/parser/parser.c +++ b/src/parser/parser.c @@ -6,7 +6,7 @@ /* By: nahaddac <nahaddac@student.42.fr> +#+ +:+ +#+ */ /* +#+#+#+#+#+ +#+ */ /* Created: 2020/06/17 18:09:04 by nahaddac #+# #+# */ -/* Updated: 2020/10/09 14:30:29 by cacharle ### ########.fr */ +/* Updated: 2020/10/09 16:10:31 by cacharle ### ########.fr */ /* */ /* ************************************************************************** */ @@ -20,12 +20,12 @@ static char *g_sep_str_lookup[] = { [TAG_END] = ";", - [TAG_AND] = "&&", [TAG_OR] = "||", - [TAG_PIPE] = "|", [TAG_REDIR_IN] = "<", [TAG_REDIR_APPEND] = ">>", [TAG_PARENT_CLOSE] = ")", + [TAG_AND] = "&&", + [TAG_PIPE] = "|", [TAG_REDIR_OUT] = ">", [TAG_PARENT_OPEN] = "(", }; @@ -38,17 +38,18 @@ static char *g_sep_str_lookup[] = { t_parsed *parse_redir(t_tok_lst *input, t_tok_lst **redirs) { - t_parsed *ret; + t_parsed *ret; tok_lst_push_back(redirs, tok_lst_uncons(&input)); - while (input != NULL && input->tag & TAG_IS_STR && input->tag & TAG_STICK && + while (input != NULL && input->tag & TAG_IS_STR && + input->tag & TAG_STICK && input->next != NULL && input->next->tag & TAG_IS_STR) tok_lst_push_back(redirs, tok_lst_uncons(&input)); if (input == NULL) - return (parsed_error("syntax error near unexpected token `newline'")); + return (parsed_unexpected("newline")); if (!(input->tag & TAG_IS_STR)) { - ret = parsed_error("syntax error near unexpected token `%s'", input->content); + ret = parsed_unexpected(input->content); tok_lst_destroy(&input, free); return (ret); } @@ -60,12 +61,14 @@ t_parsed *parse_cmd(t_tok_lst *input) { t_ast *ast; t_parsed *tmp; + t_parsed *ret; - if (input->tag & TAG_IS_SEP || input->tag == TAG_PIPE || input->tag == TAG_PARENT_CLOSE) + if (input->tag & TAG_IS_SEP || input->tag == TAG_PIPE || + input->tag == TAG_PARENT_CLOSE) { - tmp = parsed_error("syntax error near unexpected token `%s'", input->content); + ret = parsed_unexpected(input->content); tok_lst_destroy(&input, free); - return (tmp); + return (ret); } if ((ast = ast_new(AST_CMD)) == NULL) return (NULL); @@ -99,14 +102,15 @@ t_parsed *parse_pipeline(t_tok_lst *input) t_ast *pipeline_ast; expr = parse_expr(input); - if (expr == NULL || expr->syntax_error || expr->rest == NULL || expr->rest->tag != TAG_PIPE) + if (expr == NULL || expr->syntax_error || + expr->rest == NULL || expr->rest->tag != TAG_PIPE) return (expr); tok_lst_pop_front(&expr->rest, free); if (expr->rest == NULL) { ast_destroy(expr->ast); free(expr); - return (parsed_error("syntax error expected token")); + return (parsed_expected()); } tail = parse_pipeline(expr->rest); if (tail == NULL || tail->syntax_error) @@ -154,8 +158,7 @@ t_parsed *parse_op(t_tok_lst *input) ast_destroy(left->ast); tok_lst_destroy(&left->rest, free); free(left); - return (parsed_error( - "syntax error near unexpected token `%s'", g_sep_str_lookup[sep_tag])); + return (parsed_unexpected(g_sep_str_lookup[sep_tag])); } tok_lst_pop_front(&input, free); if (input == NULL && sep_tag == TAG_END) @@ -167,7 +170,7 @@ t_parsed *parse_op(t_tok_lst *input) { ast_destroy(left->ast); free(left); - return (parsed_error("syntax error expected token")); + return (parsed_expected()); } right = parse_op(input); if (right == NULL || right->syntax_error) @@ -202,7 +205,7 @@ t_parsed *parse_expr(t_tok_lst *input) { tok_lst_pop_front(&input, free); if (input == NULL) - return (parsed_error("syntax error expected token")); + return (parsed_expected()); parsed = parse_op(input); if (parsed == NULL || parsed->syntax_error) return (parsed); @@ -211,7 +214,7 @@ t_parsed *parse_expr(t_tok_lst *input) { ast_destroy(parsed->ast); free(parsed); - return (parsed_error("syntax error expected token")); + return (parsed_expected()); } tok_lst_pop_front(&input, free); if ((ast = ast_new(AST_PARENT)) == NULL) @@ -223,8 +226,8 @@ t_parsed *parse_expr(t_tok_lst *input) tmp = parse_redir(input, &parsed->ast->redirs); if (tmp == NULL || tmp->syntax_error) return (tmp); - input = tmp->rest; free(tmp); + input = tmp->rest; } parsed->rest = input; return (parsed); @@ -244,8 +247,7 @@ t_parsed *parse(t_tok_lst *input) return (parsed); if (parsed->rest != NULL) { - ret = parsed_error( - "syntax error near unexpected token `%s'", parsed->rest->content); + ret = parsed_unexpected(parsed->rest->content); tok_lst_destroy(&parsed->rest, free); ast_destroy(parsed->ast); free(parsed); |