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strtok.c
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strtok.c
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#include "shell.h"
/**
* _strtok3 - This function breaks a string into a sequence of zero or more
* nonempty tokens
* @str: Pointer to a string
* @delim: String of delimeters
*
* Return: Pointer to the next token or NULL if theres no more tokens
*/
char *_strtok3(char *str, const char *delim)
{
static char *tokn;
if (str == NULL)
{
str = tokn;
if (str == NULL)
return (NULL);
}
str += strspn(str, delim);
if (*str == '\0')
{
tokn = NULL;
return (tokn);
}
tokn = str + strcspn(str, delim);
if (tokn[0] != '\0')
{
tokn[0] = '\0';
tokn++;
}
else
tokn = NULL;
return (str);
}
/**
* _strtok2 - This function breaks a string into a sequence of zero or more
* nonempty tokens
* @str: Pointer to a string
* @delim: String of delimeters
*
* Return: Pointer to the next token or NULL if theres no more tokens
*/
char *_strtok2(char *str, const char *delim)
{
static char *tokn;
if (str == NULL)
{
str = tokn;
if (str == NULL)
return (NULL);
}
str += strspn(str, delim);
if (*str == '\0')
{
tokn = NULL;
return (tokn);
}
tokn = str + strcspn(str, delim);
if (tokn[0] != '\0')
{
tokn[0] = '\0';
tokn++;
}
else
tokn = NULL;
return (str);
}
/**
* _strtok1 - This function breaks a string into a sequence of zero or more
* nonempty tokens
* @str: Pointer to a string
* @delim: String of delimeters
*
* Return: Pointer to the next token or NULL if theres no more tokens
*/
char *_strtok1(char *str, const char *delim)
{
static char *tokn;
if (str == NULL)
{
str = tokn;
if (str == NULL)
return (NULL);
}
str += strspn(str, delim);
if (*str == '\0')
{
tokn = NULL;
return (tokn);
}
tokn = str + strcspn(str, delim);
if (tokn[0] != '\0')
{
tokn[0] = '\0';
tokn++;
}
else
tokn = NULL;
return (str);
}
/**
* _strtok - This function breaks a string into a sequence of zero or more
* nonempty tokens
* @str: Pointer to a string
* @delim: String of delimeters
*
* Return: Pointer to the next token or NULL if theres no more tokens
*/
char *_strtok(char *str, const char *delim)
{
static char *tokn;
if (str == NULL)
{
str = tokn;
if (str == NULL)
return (NULL);
}
str += strspn(str, delim);
if (*str == '\0')
{
tokn = NULL;
return (tokn);
}
tokn = str + strcspn(str, delim);
if (tokn[0] != '\0')
{
tokn[0] = '\0';
tokn++;
}
else
tokn = NULL;
return (str);
}