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WIP parsing expansions

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This commit is contained in:
LuckyLaszlo
2021-11-07 04:41:17 +01:00
parent b9fc6a9bc4
commit 0a5c7545c1
18 changed files with 631 additions and 355 deletions
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96
srcs/parsing/valid_syntax/valid_command.c Normal file
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@@ -0,0 +1,96 @@
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* valid_command.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lperrey <lperrey@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2021/10/24 18:52:05 by lperrey #+# #+# */
/* Updated: 2021/10/24 19:21:28 by lperrey ### ########.fr */
/* */
/* ************************************************************************** */
#include "minishell.h"
int valid_io_redirect(t_token **token_list);
static int valid_command_rule1(t_token **token_list);
static int valid_command_rule2(t_token **token_list);
static int valid_command_rule3(t_token **token_list);
static int valid_command_rule4(t_token **token_list);
int valid_command(t_token **token_list)
{
t_token *cmd_start;
cmd_start = *token_list;
if (valid_command_rule1(token_list))
return (1);
*token_list = cmd_start;
if (valid_command_rule2(token_list))
return (1);
*token_list = cmd_start;
if (valid_command_rule3(token_list))
return (1);
*token_list = cmd_start;
if (valid_command_rule4(token_list))
return (1);
return (0);
}
// cmd_prefix cmd_name cmd_suffix
static int valid_command_rule1(t_token **token_list)
{
while (valid_io_redirect(token_list))
{
if (valid_token(token_list, T_WORD))
{
while (valid_token(token_list, T_WORD)
|| valid_io_redirect(token_list))
{
if (valid_command_separator(*token_list))
return (1);
}
}
}
return (0);
}
// cmd_prefix cmd_name
static int valid_command_rule2(t_token **token_list)
{
while (valid_io_redirect(token_list))
{
if (valid_token(token_list, T_WORD))
{
if (valid_command_separator(*token_list))
return (1);
}
}
return (0);
}
// cmd_name cmd_suffix
static int valid_command_rule3(t_token **token_list)
{
if (valid_token(token_list, T_WORD))
{
while (valid_token(token_list, T_WORD) || valid_io_redirect(token_list))
{
if (valid_command_separator(*token_list))
return (1);
}
}
return (0);
}
// cmd_name
static int valid_command_rule4(t_token **token_list)
{
if (valid_token(token_list, T_WORD))
{
if (valid_command_separator(*token_list))
return (1);
}
return (0);
}

44
srcs/parsing/valid_syntax/valid_io_redirect.c Normal file
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@@ -0,0 +1,44 @@
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* valid_io_redirect.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lperrey <lperrey@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2021/10/24 18:52:42 by lperrey #+# #+# */
/* Updated: 2021/10/24 19:21:35 by lperrey ### ########.fr */
/* */
/* ************************************************************************** */
#include "minishell.h"
static int valid_io_file(t_token **token_list);
static int valid_io_here(t_token **token_list);
int valid_io_redirect(t_token **token_list)
{
if (valid_io_file(token_list) || valid_io_here(token_list))
return (1);
return (0);
}
static int valid_io_file(t_token **token_list)
{
if (valid_token(token_list, '<') || valid_token(token_list, '>')
|| valid_token(token_list, T_DGREAT))
{
if (valid_token(token_list, T_WORD))
return (1);
}
return (0);
}
static int valid_io_here(t_token **token_list)
{
if (valid_token(token_list, T_DLESS))
{
if (valid_token(token_list, T_WORD))
return (1);
}
return (0);
}

28
srcs/parsing/valid_syntax/valid_pipeline.c Normal file
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@@ -0,0 +1,28 @@
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* valid_pipeline.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lperrey <lperrey@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2021/10/24 18:51:35 by lperrey #+# #+# */
/* Updated: 2021/10/24 19:35:16 by lperrey ### ########.fr */
/* */
/* ************************************************************************** */
#include "minishell.h"
int valid_command(t_token **token_list);
int valid_pipeline(t_token **token_list)
{
while (valid_command(token_list))
{
if (*token_list == NULL)
return (1);
else if ((*token_list)->id != '|' || (*token_list)->next == NULL)
return (0);
valid_token(token_list, '|');
}
return (0);
}

45
srcs/parsing/valid_syntax/valid_syntax.c Normal file
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@@ -0,0 +1,45 @@
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* valid_syntax.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lperrey <lperrey@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2021/10/24 13:01:10 by lperrey #+# #+# */
/* Updated: 2021/10/24 19:40:23 by lperrey ### ########.fr */
/* */
/* ************************************************************************** */
#include "minishell.h"
int valid_pipeline(t_token **token_list);
int valid_syntax(t_token *token_list)
{
if (valid_pipeline(&token_list))
return (1);
else
{
ft_putstr_fd("minishell: syntax error near unexpected token \'", 2);
ft_putstr_fd(token_list->content, 2);
ft_putstr_fd("\'\n", 2);
}
return (0);
}
int valid_token(t_token **token_list, enum e_token_id token_id)
{
if (*token_list != NULL && (*token_list)->id == token_id)
{
*token_list = (*token_list)->next;
return (1);
}
return (0);
}
int valid_command_separator(const t_token *token_list)
{
if (token_list == NULL || token_list->id == '|')
return (1);
return (0);
}