Functions for tokenizing the input string and creating a lexer list. More...

#include "minishell.h"

Include dependency graph for tokenize.c:

Functions
t_token	assign_type (char tok)
	Assign a type based on the input char.

t_token	which_type (char *s)
	Set the type of token.

t_lexer_list *	create_lexer_list (char **input_array)
	Allocates memory for the lexer list.

t_lexer_list *	fill_lexer_list (char **input_array)
	Fills the lexer list using the input array.

t_lexer_list *	tokenize (t_shell *shell)
	Tokenizes the input string and creates the lexer list.

Detailed Description

Functions for tokenizing the input string and creating a lexer list.

Function Documentation

◆ assign_type()

t_token assign_type ( char tok )

Assign a type based on the input char.

Parameters

tok	The input char to assign a tyoe for.

Returns: The assigned type for the the input char.

◆ create_lexer_list()

t_lexer_list * create_lexer_list ( char ** input_array )

Allocates memory for the lexer list.

Creates a double-linked list using the size of the input array. Calculates size of input array. and allocates memory for the lexer list. If malloc fails, displays error message, returns NULL.

Parameters

input_array The array with the substrings('tokens').

Returns: A pointer to the head of the allocated list, or NULL if allocation failed.

◆ fill_lexer_list()

t_lexer_list * fill_lexer_list ( char ** input_array )

Fills the lexer list using the input array.

Calls create_lexer_list() to allocates a double-linked list with as many nodes as substrings in input_array. Fills each node of the list with information about each 'token'.

Parameters

input_array The array with the substrings('tokens').

Returns: A pointer to the head of the filled lexer list, or NULL on failure.

◆ tokenize()

t_lexer_list * tokenize ( t_shell * shell )

Tokenizes the input string and creates the lexer list.

Tokenizes the input by creating an array of substrings. Creates a linked list of lexer tokens using the substrings. Returns a pointer to the head of the lexer linked list. if malloc fails for input_array or lexer list, display message and return NULL.

Parameters

shell The shell data structure (main data structure). @ return The head of the lexer list if successful, otherwise NULL.

◆ which_type()

t_token which_type ( char * s )

Set the type of token.

Takes an input string('token') and chooses the type of token it represents. Only sets if the token is a pipe or some redirection, otherwise sets type to NONE.

Parameters

s	The input string ('token') to identify the type for.

Returns: The type of token identified.