Functions for creating an array of strings for tokenization. More...

#include "minishell.h"

Include dependency graph for create_input_array.c:

Functions
int	len_substr (char *str)
	Calculates the length of a substring('token') until a delimiter or a token is found.

int	count_elements (char *rl_copy)
	Count the number of elements in the input string.

int	find_token (char input_array, char input, int index)
	Finds predefined tokens in the input string and adds it to the input_array.

char **	fill_input_array (char *input_array, char input)
	Fills the array of strings with substrings('tokens') from the input string.

char **	create_input_array (t_shell *shell)
	Create an array of input strings for tokenization.

Detailed Description

Functions for creating an array of strings for tokenization.

Function Documentation

◆ count_elements()

int count_elements ( char * rl_copy )

Count the number of elements in the input string.

Takes an input and counts the substrings('tokens') in it. Makes use of len_substr() to get the length of each substring. Returns the number of substrings found.

Parameters

rl_copy The string for which to count the number of substrings.

Returns: The number of substrings('tokens') in the input string.

◆ create_input_array()

char ** create_input_array ( t_shell * shell )

Create an array of input strings for tokenization.

Creates an array of tokens from shell->rl_copy(removed leading and trailing whitespaces). Calculates the number of elements needed for the array and allocates for it. Calls fill_input_array() to fill the array with substrings ('tokens').

Parameters

shell The main data structure.

Returns: An array of substrings('tokens').

◆ fill_input_array()

char ** fill_input_array	(	char **	input_array,
		char *	input
	)

Fills the array of strings with substrings('tokens') from the input string.

Takes an input string, splits it into substrings('tokens') and fills the given array of strings with these substrings('tokens'). The function iterates over the input, calls find_token() to find predefined 'tokens' and adds them to the array. Also handles whitespace separated substrings and adds them to the array.

Parameters

input_array	Pointer to the array of strings to fill.
input	The input string.

Returns: input_array The array of strings with the tokens and whitespace separated substrings.

◆ find_token()

int find_token	(	char **	input_array,
		char **	input,
		int	index
	)

Finds predefined tokens in the input string and adds it to the input_array.

Finds tokens in the input string and adds them to the input_array. It calls is_token() and is_token2() to check for existing valid tokens. If a token is found, a substring is created and added to the input_array.

Parameters

input_array	Pointer to the array of strings.
input	Pointer to the input string.
index	Current index in the input_array.

Returns: index The updated index after adding a substring/token to the array of strings.

◆ len_substr()

int len_substr ( char * str )

Calculates the length of a substring('token') until a delimiter or a token is found.

Takes an input string and finds the length of the substring('token') until a delimiter(whitespaces) or token('<', '>', '|') is encountered. Iterates over the string while checking for delimiter and token. If delimiter is not found, call no_delim_found() to modify the len. Returns the len of the substring until the delimiter or token.

Parameters

str	The input string to find the lenght of substring for.

Returns: len The lenght of the substring until the delimiter or token is found.