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Full Discussion: How to read extended ASCII characters from stdin?
Top Forums Programming How to read extended ASCII characters from stdin? Post 302932095 by sanzee007 on Monday 19th of January 2015 04:16:12 AM
Old 01-19-2015
In the below code I tried to read the entered text in a buffer and showing the length of data read from stdin.

Code:
#include <stdio.h>
#include <wchar.h>
#include <stdlib.h>
#include <locale.h>

#define BUFSIZE  256

wchar_t* readFromStdin(const wchar_t *);

wchar_t m_buf[BUFSIZE];

int main()
{
        const wchar_t *pwch;
        char *pbuf = NULL;
        setlocale(LC_ALL, "");
        printf("Enter the word having extended characters:");
        pwch = readFromStdin(L"Word: ");
        printf("The Wide char string is: %S\n", pwch);
        wcstombs(pbuf, pwch, wcslen(pwch)+1); // I have to convert the wchar_t data to char* for further processing

return 0;
}

wchar_t *readFromStdin(const wchar_t *ptr) // Though this function is not doing what its name suggests
{
        unsigned int size;
        scanf("%ls",m_buf);
        size = wcslen(m_buf);

        printf("Size of buf = %d\n", size);
        return (m_buf);

}

Whether this code will properly read any word having extended ascii characters and be able to show the desired length of the word.?

Thanks,
Moderator's Comments:
Mod Comment Please use CODE tags (not ICODE tags) for multi-line input, output, and code samples.
Last edited by Don Cragun; 01-19-2015 at 05:24 AM.. Reason: Change ICODE tags to CODE tags for multi-line data.
 

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LEARN ABOUT FREEBSD

wcsrchr

WMEMCHR(3)						   BSD Library Functions Manual 						WMEMCHR(3)

NAME

     wmemchr, wmemcmp, wmemcpy, wmemmove, wmemset, wcpcpy, wcpncpy, wcscasecmp, wcscat, wcschr, wcscmp, wcscpy, wcscspn, wcsdup, wcslcat, wcslcpy,
     wcslen, wcsncasecmp, wcsncat, wcsncmp, wcsncpy, wcsnlen, wcspbrk, wcsrchr, wcsspn, wcsstr -- wide character string manipulation operations

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <wchar.h>

     wchar_t *
     wmemchr(const wchar_t *s, wchar_t c, size_t n);

     int
     wmemcmp(const wchar_t *s1, const wchar_t *s2, size_t n);

     wchar_t *
     wmemcpy(wchar_t * restrict s1, const wchar_t * restrict s2, size_t n);

     wchar_t *
     wmemmove(wchar_t *s1, const wchar_t *s2, size_t n);

     wchar_t *
     wmemset(wchar_t *s, wchar_t c, size_t n);

     wchar_t *
     wcpcpy(wchar_t *s1, wchar_t *s2);

     wchar_t *
     wcpncpy(wchar_t *s1, wchar_t *s2, size_t n);

     int
     wcscasecmp(const wchar_t *s1, const wchar_t *s2);

     wchar_t *
     wcscat(wchar_t * restrict s1, const wchar_t * restrict s2);

     wchar_t *
     wcschr(const wchar_t *s, wchar_t c);

     int
     wcscmp(const wchar_t *s1, const wchar_t *s2);

     wchar_t *
     wcscpy(wchar_t * restrict s1, const wchar_t * restrict s2);

     size_t
     wcscspn(const wchar_t *s1, const wchar_t *s2);

     wchar_t *
     wcsdup(const wchar_t *s);

     size_t
     wcslcat(wchar_t *s1, const wchar_t *s2, size_t n);

     size_t
     wcslcpy(wchar_t *s1, const wchar_t *s2, size_t n);

     size_t
     wcslen(const wchar_t *s);

     int
     wcsncasecmp(const wchar_t *s1, const wchar_t *s2, size_t n);

     wchar_t *
     wcsncat(wchar_t * restrict s1, const wchar_t * restrict s2, size_t n);

     int
     wcsncmp(const wchar_t *s1, const wchar_t * s2, size_t n);

     wchar_t *
     wcsncpy(wchar_t * restrict s1, const wchar_t * restrict s2, size_t n);

     size_t
     wcsnlen(const wchar_t *s, size_t maxlen);

     wchar_t *
     wcspbrk(const wchar_t *s1, const wchar_t *s2);

     wchar_t *
     wcsrchr(const wchar_t *s, wchar_t c);

     size_t
     wcsspn(const wchar_t *s1, const wchar_t *s2);

     wchar_t *
     wcsstr(const wchar_t * restrict s1, const wchar_t * restrict s2);

DESCRIPTION

     The functions implement string manipulation operations over wide character strings.  For a detailed description, refer to documents for the
     respective single-byte counterpart, such as memchr(3).

SEE ALSO

     memchr(3), memcmp(3), memcpy(3), memmove(3), memset(3), stpcpy(3), stpncpy(3), strcasecmp(3), strcat(3), strchr(3), strcmp(3), strcpy(3),
     strcspn(3), strdup(3), strlcat(3), strlcpy(3), strlen(3), strncat(3), strncmp(3), strncpy(3), strnlen(3), strpbrk(3), strrchr(3), strspn(3),
     strstr(3)

STANDARDS

     These functions conform to ISO/IEC 9899:1999 (``ISO C99''), with the exception of wcpcpy(), wcpncpy(), wcscasecmp(), wcsdup(), wcsncasecmp(),
     and wcsnlen(), which conform to IEEE Std 1003.1-2008 (``POSIX.1''); and wcslcat() and wcslcpy(), which are extensions.

BSD
								   March 4, 2009							       BSD
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