/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* main.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lyao-che <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/04/12 07:17:44 by lyao-che #+# #+# */
/* Updated: 2022/04/12 07:25:47 by lyao-che ### ########.fr */
/* */
/* ************************************************************************** */
#include <stdio.h>
char *ft_strcpy(char *dest, char *src);
int main(void)
{
char srcS []= "Source string";
char destS [] = "Destination string";
char *pdest;
printf("Before:\n\tSource String: %s\n", srcS);
printf("\tDestination String: %s\n", destS);
pdest = ft_strcpy(destS, srcS);
printf("After: \n\tSource String: %s\n", srcS);
printf("\tDestination String: %s\n", pdest);
}/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strcpy.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lyao-che <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/04/11 17:46:15 by lyao-che #+# #+# */
/* Updated: 2022/04/12 07:17:35 by lyao-che ### ########.fr */
/* */
/* ************************************************************************** */
char *ft_strcpy(char *dest, char *src)
{
int counter;
counter = 0;
while (src[counter] != '\0')
{
dest[counter] = src[counter];
counter++;
}
dest[counter] = '\0';
return (dest);
}/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* main.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lyao-che <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/04/12 07:17:44 by lyao-che #+# #+# */
/* Updated: 2022/04/12 14:52:30 by lyao-che ### ########.fr */
/* */
/* ************************************************************************** */
#include <stdio.h>
char *ft_strncpy(char *dest, char *src, unsigned int n);
int main(void)
{
char srcS []= "Source string";
char destS [] = "Destination string";
char *pdest;
unsigned int n = 3;
printf("Before:\n\tSource String: %s\n", srcS);
printf("\tDestination String: %s\n", destS);
pdest = ft_strncpy(destS, srcS, n);
printf("After: \n\tSource String: %s\n", srcS);
printf("\tDestination String: %s\n", pdest);
}/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strncpy.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lyao-che <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/04/11 17:46:15 by lyao-che #+# #+# */
/* Updated: 2022/04/12 17:47:33 by lyao-che ### ########.fr */
/* */
/* ************************************************************************** */
char *ft_strncpy(char *dest, char *src, unsigned int n)
{
unsigned int counter;
counter = 0;
while (src[counter] != '\0' && counter < n)
{
dest[counter] = src[counter];
counter++;
}
while (counter < n)
{
dest[counter] = '\0';
counter++;
}
return (dest);
}/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* main.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lyao-che <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/04/12 08:24:53 by lyao-che #+# #+# */
/* Updated: 2022/04/12 09:10:37 by lyao-che ### ########.fr */
/* */
/* ************************************************************************** */
#include <stdio.h>
int ft_str_is_alpha(char *str);
int main(void)
{
char alphac[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
char specialc[] = "ABC abc áéíóú àèìòù âêîôû äëïöü \'\"(){}[]!?@#$&* wxyz WXYZ";
char emptyc[] = "";
char *palphac = alphac;
char *pspecialc = specialc;
char *pempty = emptyc;
printf("String ONLY contains alphabet characters: 1\n");
printf("String does not contains only alpahabet characters: 0\n");
printf("String contains empty character: 1\n");
printf("\nAlphabet characters: %d", ft_str_is_alpha(palphac));
printf("\nNon-alphabet: %d", ft_str_is_alpha(pspecialc));
printf("\nEmpty character: %d", ft_str_is_alpha(pempty));
}/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_str_is_alpha.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lyao-che <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/04/12 08:16:50 by lyao-che #+# #+# */
/* Updated: 2022/04/12 09:11:07 by lyao-che ### ########.fr */
/* */
/* ************************************************************************** */
int ft_str_is_alpha(char *str)
{
int c;
c = 0;
while (str[c] != '\0')
{
if ((str[c] < 'A' || str[c] > 'Z') && (str[c] < 'a' || str[c] > 'z'))
return (0);
c++;
}
return (1);
}/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* main.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lyao-che <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/04/12 08:24:53 by lyao-che #+# #+# */
/* Updated: 2022/04/12 09:24:23 by lyao-che ### ########.fr */
/* */
/* ************************************************************************** */
#include <stdio.h>
int ft_str_is_numeric(char *str);
int main(void)
{
char numeric[] = "0123456789";
char specialc[] = "0123456789_";
char emptyc[] = "";
char *pnumeric = numeric;
char *pspecialc = specialc;
char *pempty = emptyc;
printf("String ONLY contains numeric characters: 1\n");
printf("String does not contains only numeric characters: 0\n");
printf("String contains empty character: 1\n");
printf("\nNumeric characters: %d", ft_str_is_numeric(pnumeric));
printf("\nNon-numeric: %d", ft_str_is_numeric(pspecialc));
printf("\nEmpty character: %d", ft_str_is_numeric(pempty));
}/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_str_is_numeric.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lyao-che <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/04/12 09:17:21 by lyao-che #+# #+# */
/* Updated: 2022/04/12 09:22:23 by lyao-che ### ########.fr */
/* */
/* ************************************************************************** */
int ft_str_is_numeric(char *str)
{
int c;
c = 0;
while (str[c] != '\0')
{
if (str[c] < '0' || str[c] > '9')
return (0);
c++;
}
return (1);
}/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* main.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lyao-che <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/04/12 09:38:13 by lyao-che #+# #+# */
/* Updated: 2022/04/12 09:40:43 by lyao-che ### ########.fr */
/* */
/* ************************************************************************** */
#include <stdio.h>
int ft_str_is_lowercase(char *str);
int main(void)
{
char alphac[] = "abcdefghijklmnopqrstuvwxyz";
char specialc[] = "ABcdefghijklmnopqrstuvwxyz_";
char emptyc[] = "";
char *palphac = alphac;
char *pspecialc = specialc;
char *pempty = emptyc;
printf("String ONLY contains numeric characters: 1\n");
printf("String does not contains only numeric characters: 0\n");
printf("String contains empty character: 1\n");
printf("\nNumeric characters: %d", ft_str_is_lowercase(palphac));
printf("\nNon-numeric: %d", ft_str_is_lowercase(pspecialc));
printf("\nEmpty character: %d", ft_str_is_lowercase(pempty));
}/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_str_is_lowercase.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lyao-che <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/04/12 09:36:55 by lyao-che #+# #+# */
/* Updated: 2022/04/12 09:41:43 by lyao-che ### ########.fr */
/* */
/* ************************************************************************** */
int ft_str_is_lowercase(char *str)
{
int c;
c = 0;
while (str[c] != '\0')
{
if (str[c] < 'a' || str[c] > 'z')
return (0);
c++;
}
return (1);
}/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* main.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lyao-che <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/04/12 09:51:01 by lyao-che #+# #+# */
/* Updated: 2022/04/12 09:52:57 by lyao-che ### ########.fr */
/* */
/* ************************************************************************** */
#include <stdio.h>
int ft_str_is_uppercase(char *str);
int main(void)
{
char alphac[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
char specialc[] = "abcdefghijklmnopqrstuvwxyz_";
char emptyc[] = "";
char *palphac = alphac;
char *pspecialc = specialc;
char *pempty = emptyc;
printf("String ONLY contains numeric characters: 1\n");
printf("String does not contains only numeric characters: 0\n");
printf("String contains empty character: 1\n");
printf("\nNumeric characters: %d", ft_str_is_uppercase(palphac));
printf("\nNon-numeric: %d", ft_str_is_uppercase(pspecialc));
printf("\nEmpty character: %d", ft_str_is_uppercase(pempty));
}/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_str_is_uppercase.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lyao-che <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/04/12 09:50:13 by lyao-che #+# #+# */
/* Updated: 2022/04/12 09:50:41 by lyao-che ### ########.fr */
/* */
/* ************************************************************************** */
int ft_str_is_uppercase(char *str)
{
int c;
c = 0;
while (str[c] != '\0')
{
if (str[c] < 'A' || str[c] > 'Z')
return (0);
c++;
}
return (1);
}/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* main.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lyao-che <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/04/12 10:04:40 by lyao-che #+# #+# */
/* Updated: 2022/04/12 10:07:37 by lyao-che ### ########.fr */
/* */
/* ************************************************************************** */
#include <stdio.h>
int ft_str_is_printable(char *str);
int main(void)
{
char alphac[] = "printable text";
char specialc[] = "unprintable text: \t \a ";
char emptyc[] = "";
char *palphac = alphac;
char *pspecialc = specialc;
char *pempty = emptyc;
printf("String ONLY contains printable characters: 1\n");
printf("String does not contains only printable characters: 0\n");
printf("String contains empty character: 1\n");
printf("\nNumeric characters: %d", ft_str_is_printable(palphac));
printf("\nNon-numeric: %d", ft_str_is_printable(pspecialc));
printf("\nEmpty character: %d", ft_str_is_printable(pempty));
}/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_str_is_printable.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lyao-che <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/04/12 10:02:59 by lyao-che #+# #+# */
/* Updated: 2022/04/12 10:04:03 by lyao-che ### ########.fr */
/* */
/* ************************************************************************** */
int ft_str_is_printable(char *str)
{
int c;
c = 0;
while (str[c] != '\0')
{
if (str[c] < 32 || str[c] > 127)
return (0);
c++;
}
return (1);
}/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* main.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lyao-che <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/04/12 12:04:00 by lyao-che #+# #+# */
/* Updated: 2022/04/12 12:07:40 by lyao-che ### ########.fr */
/* */
/* ************************************************************************** */
#include <stdio.h>
char *ft_strupcase(char *str);
int main(void)
{
char lowcase[] = "abcdefghijklmnopqrstuvwxyz";
char *plowcase = lowcase;
ft_strupcase(plowcase);
printf("to uppercase: %s\n", plowcase);
}/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strupcase.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lyao-che <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/04/12 11:56:00 by lyao-che #+# #+# */
/* Updated: 2022/04/12 12:08:46 by lyao-che ### ########.fr */
/* */
/* ************************************************************************** */
char *ft_strupcase(char *str)
{
int c;
c = 0;
while (str[c] != '\0')
{
if (str[c] >= 'a' && str[c] <= 'z')
str[c] -= 32;
c++;
}
return (str);
}/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* main.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lyao-che <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/04/12 12:20:26 by lyao-che #+# #+# */
/* Updated: 2022/04/12 12:22:35 by lyao-che ### ########.fr */
/* */
/* ************************************************************************** */
#include <stdio.h>
char *ft_strlowcase(char *str);
int main(void)
{
char lowcase[] = "ABCD";
char *plowcase = lowcase;
ft_strlowcase(plowcase);
printf("to lowcase: %s\n", plowcase);
}/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strlowcase.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lyao-che <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/04/12 12:19:29 by lyao-che #+# #+# */
/* Updated: 2022/04/12 12:22:58 by lyao-che ### ########.fr */
/* */
/* ************************************************************************** */
char *ft_strlowcase(char *str)
{
int c;
c = 0;
while (str[c] != '\0')
{
if (str[c] >= 'A' && str[c] <= 'Z')
str[c] += 32;
c++;
}
return (str);
}/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* main.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lyao-che <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/04/12 14:18:22 by lyao-che #+# #+# */
/* Updated: 2022/04/12 14:29:43 by lyao-che ### ########.fr */
/* */
/* ************************************************************************** */
#include <stdio.h>
char *ft_strcapitalize(char *str);
int main(void)
{
char original[] = "salut, comment tu vas ? 42mots quarante-deux; cinquante+et+un";
printf("Original string: %s\n", original);
printf("Changes made: %s\n", ft_strcapitalize(original));
return (0);
}/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strcapitalize.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lyao-che <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/04/12 14:06:51 by lyao-che #+# #+# */
/* Updated: 2022/04/12 17:52:58 by lyao-che ### ########.fr */
/* */
/* ************************************************************************** */
char *ft_strcapitalize(char *str)
{
int c;
int i;
c = 0;
i = 0;
while (str[c] != '\0')
{
if (i == 0 && str[c] >= 'a' && str[c] <= 'z')
{
str[c] -= 32;
i++;
}
else if (i > 0 && str[c] >= 'A' && str[c] <= 'Z')
str[c] += 32;
else if (i > 0 && str[c] == ' ')
i = 0;
else
i++;
c++;
}
return (str);
}