Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

wcswidth_l(3) [osx man page]

WCSWIDTH(3)						   BSD Library Functions Manual 					       WCSWIDTH(3)

wcswidth, wcswidth_l -- number of column positions in wide-character string LIBRARY
Standard C Library (libc, -lc) SYNOPSIS
#include <wchar.h> int wcswidth(const wchar_t *pwcs, size_t n); #include <wchar.h> #include <xlocale.h> int wcswidth_l(const wchar_t *pwcs, size_t n, locale_t loc); DESCRIPTION
The wcswidth() function determines the number of column positions required for the first n characters of pwcs, or until a null wide character (L'') is encountered. Although the wcswidth() function uses the current locale, the wcswidth_l() function may be passed a locale directly. See xlocale(3) for more information. RETURN VALUES
The wcswidth() function returns 0 if pwcs is an empty string (L""), -1 if a non-printing wide character is encountered; otherwise, it returns the number of column positions occupied. SEE ALSO
iswprint(3), wcwidth(3), xlocale(3) STANDARDS
The wcswidth() function conforms to IEEE Std 1003.1-2001 (``POSIX.1''). BSD
August 20, 2002 BSD

Check Out this Related Man Page

wcswidth(3)						     Library Functions Manual						       wcswidth(3)

wcswidth - Determines the display width of wide-character strings LIBRARY
Standard C Library (libc) SYNOPSIS
#include <wchar.h> int wcswidth( const wchar_t *pwcs, size_t n); STANDARDS
Interfaces documented on this reference page conform to industry standards as follows: wcswidth(): XSH5.0 Refer to the standards(5) reference page for more information about industry standards and associated tags. PARAMETERS
Contains a pointer to the wide-character string. Specifies the maximum number of wide characters whose display width is to be determined. DESCRIPTION
The wcswidth() function determines the number of display columns to be occupied by the number of wide characters specified by the n parame- ter in the string pointed to by the pwcs parameter. The behavior of the wcswidth() function is affected by the LC_CTYPE category. Fewer than the number of wide characters specified by the n parameter are counted if a null wide character is encountered first. EXAMPLES
The following example finds the display column width of a wide-character string: #include <wchar.h> #include <locale.h> main() { wchar_t *pwcs; int retval, n ; (void)setlocale(LC_ALL, ""); /* Let pwcs point to a wide-character null-terminated ** string. Let n be the number of wide characters whose ** display column width is to be determined. */ retval= wcswidth( pwcs, n ); if(retval == -1){ /* Error handling. Invalid wide-character code ** encountered in the wide-character string pwcs. */ } } RETURN VALUES
The wcswidth() function returns the number of display columns to be occupied by the specified number of wide characters or (if a null wide character is encountered first) by the number of wide characters encountered before the null. The function returns a value of 0 (zero) if the pwcs parameter is a null pointer or a pointer to a null pointer (that is, if either pwcs or *pwcs is null. The function returns -1 if the pwcs parameter points to a nonprinting wide character. RELATED INFORMATION
Functions: mblen(3), wcslen(3), wcwidth(3) Standards: standards(5) delim off wcswidth(3)
Man Page

13 More Discussions You Might Find Interesting

1. AIX

AIX Links

Manufacturer Links General Information Home Page: IBM United States Documentation/Information: IBM System p - UNIX servers: Support and services pSeries and AIX Information Center Developerworks AIX Wiki: AIX Wiki AIX for System Administrators In-depth information from IBM: IBM... (0 Replies)
Discussion started by: Perderabo
0 Replies

2. OS X (Apple)

Mac OS X: Based on UNIX - Solid As a Rock

See this threads: Page Not Found - Apple Open Source - Apple (0 Replies)
Discussion started by: Neo
0 Replies

3. Shell Programming and Scripting

At A Glance Coloured Real Time Bargraph Generator...

Not sure if anyone is interested but I am just getting into UNIX like shell scripting... I have great interest in pseudo-animations in text mode and accessing HW like /dev/dsp for example... ... Have fun, I do... ;o) # !/bin/sh # # # # A DEMO 6 bit coloured... (0 Replies)
Discussion started by: wisecracker
0 Replies

4. UNIX for Advanced & Expert Users

When is a _function_ not a _function_?

For a starter I know the braces are NOT in the code... Consider these code snippets:- #!/bin/bash --posix x=0 somefunction() if then echo "I am here." fi # somefunction #!/bin/bash --posix x=0 somefunction() if (2 Replies)
Discussion started by: wisecracker
2 Replies

5. OS X (Apple)

Installing Dash Shell on OS X Lion

For those interested in installing dash shell on OSX Lion to help test POSIX compliancy of shell scripts, it is quite easy. I did it like this: If you don't have gcc on your system: 0. Download and install the Command Line Tools for Xcode package from Sign In - Apple * 1. Download the dash... (2 Replies)
Discussion started by: Scrutinizer
2 Replies

6. OS X (Apple)

Hearing Aid for OSX 10.12.x and greater.

Hearing Aid... Hi folks yet another bizarre piece of code that is Apple OSX 10.12.x to at least 10.14.1 specific. It requires only a default OSX install, and the internal microphone along with an external headphone assembly. Pre-amble, 14-02-2019: For over 3 weeks now I have been suffering a... (3 Replies)
Discussion started by: wisecracker
3 Replies

7. UNIX for Advanced & Expert Users

Shopt -s histappend

What is the point of this? Whenever I close my shell it appends to the history file without adding this. I have never seen it overwrite my history file. # When the shell exits, append to the history file instead of overwriting it shopt -s histappend (3 Replies)
Discussion started by: cokedude
3 Replies

8. OS X (Apple)

Undeletable file

Greetings, I'm trying to delete a file with a weird name from within Terminal on a Mac. It's a very old file (1992) with null characters in the name: ␀␀Word Finder® Plus™. Here are some examples of what I've tried: 12FX009:5 dpontius$ ls ␀␀Word Finder® Plus™ 12FX009:5 dpontius$ rm... (29 Replies)
Discussion started by: dpontius
29 Replies

9. Shell Programming and Scripting

To print diamond asterisk pattern based on inputs

I have to print the number of stars that increases on each line from the minimum number until it reaches the maximum number, and then decreases until it goes back to the minimum number. After printing out the lines of stars, it should also print the total number of stars printed. I have tried... (13 Replies)
Discussion started by: rohit_shinez
13 Replies

10. Programming

My first PERL incarnation... Audio Oscillograph

Hi all... Well guys and gals, I jumped in at the deep end and found things that PERL cannot do by default. Many tricky terminal escape codes are not catered for so I had to create workarounds. One thing I searched for was this: Passing perl variable to shell command AND, @Neo this was... (15 Replies)
Discussion started by: wisecracker
15 Replies

11. Shell Programming and Scripting

A dash to GOTO or a dash from GOTO, that is the question...

Well, guys I saw a question about GOTO for Python. So this gave me the inspiration to attempt a GOTO function for 'dash', (bash and ksh too). Machine: MBP OSX 10.14.3, default bash terminal, calling '#!/usr/local/bin/dash'... This is purely a fun project to see if it is possible in PURE... (3 Replies)
Discussion started by: wisecracker
3 Replies

12. Shell Programming and Scripting

Syntax error in subtraction in Bash

I am sharing a code snippet. for (( i=0; i<=$(( $count -1 )); i++ )) do first=${barr2} search=${barr1} echo $first echo "loop begins" for (( j=0; j<=5000; j++ )) do if } == $search ]]; then echo $j break; fi done second=${harr2} echo $second (2 Replies)
Discussion started by: ngabrani
2 Replies

13. Shell Programming and Scripting

Python: Refer a properties file from different location

Hi All, I'm having a python script: in /path/to/script/ I'm using a properties file: (it is having values as dictionary{}) which is in same DIR as the script. Sample Properties file: params = { 'target_db' : 'a1_db' 'src_db' : ... (15 Replies)
Discussion started by: saps19
15 Replies