loc_env_var_handler_utils.c File Reference

#include "tokens.h"

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Functions
char *	ev_loop (char **start, t_ms_data *data, char *str_start, char *expanded_str)
char *	expand_variable (char **start, t_ms_data *data)
void	handle_local_vars (t_ms_data *data, char *arg)

Function Documentation

ev_loop()

char * ev_loop	(	char **	start,
		t_ms_data *	data,
		char *	str_start,
		char *	expanded_str
	)

Definition at line 15 of file loc_env_var_handler_utils.c.

{
    char    *var_name;
    char    *var_start;
    char    *expanded_var;
    char    *tmp;
    int     len_before_var;
 
    var_start = *start;
    (*start)++;
    while (**start && (ft_isalnum(**start) || **start == '_'))
        (*start)++;
    var_name = ft_substr(var_start, 0, *start - var_start);
    expanded_var = expand_env_and_loc_var(var_name, data);
    free(var_name);
    len_before_var = var_start - str_start;
    tmp = ft_substr(str_start, 0, len_before_var);
    expanded_str = ft_strjoin_free(expanded_str, tmp);
    free(tmp);
    expanded_str = ft_strjoin_free(expanded_str, expanded_var);
    free(expanded_var);
    return (expanded_str);
}

References expand_env_and_loc_var(), ft_isalnum(), ft_strjoin_free(), and ft_substr().

Referenced by expand_variable().

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expand_variable()

char * expand_variable	(	char **	start,
		t_ms_data *	data
	)

Definition at line 40 of file loc_env_var_handler_utils.c.

{
    char    *expanded_str;
    char    *str_start;
    char    *result;
 
    result = NULL;
    str_start = *start;
    expanded_str = ft_strdup("");
    while (**start && **start != '\0')
    {
        if (**start == '$')
        {
            expanded_str = ev_loop(start, data, str_start, expanded_str);
            str_start = *start;
            str_start = str_start_adj(str_start);
        }
        else
            (*start)++;
    }
    if (str_start != *start)
    {
        result = ft_substr(str_start, 0, *start - str_start);
        expanded_str = ft_strjoin_free(expanded_str, result);
        free(result);
    }
    return (expanded_str);
}

References ev_loop(), ft_strdup(), ft_strjoin_free(), ft_substr(), and str_start_adj().

Referenced by process_argument(), and process_single_token().

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handle_local_vars()

void handle_local_vars	(	t_ms_data *	data,
		char *	arg
	)

Definition at line 69 of file loc_env_var_handler_utils.c.

{
    char    *p;
    int     valid_var;
 
    p = arg;
    valid_var = 1;
    if (arg[0] != '=' && ft_strchr(arg, '='))
    {
        while (p < ft_strchr(arg, '='))
        {
            if (!ft_isalnum(*p++))
            {
                valid_var = 0;
                break ;
            }
        }
        if (valid_var)
            handle_add_set_shell_variable(&data->shell_variables, arg);
    }
}

References ft_isalnum(), ft_strchr(), handle_add_set_shell_variable(), and s_ms_data::shell_variables.

Referenced by post_process_command_args().

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