c++ - What is the difference between locale and Encoding ( Terminal ) -


i have tried few ways set terminal 'encoding' c++ program. change locale. or lang variable.

still able enter characters of different encoding lang ( , output of nl_langinfo(codeset) )

but , if go terminal > set character encoding > iso-8859-15 ( or ) allowing iso-8859-15 . can achive same thing ( setting gui ) c++ program ?

i used setlocale(lc_ctype,"") set encoding terminal encoding , uses lang variable.and allows other characters too.

( after terminal > set character encoding > iso-8859-1 ( latin1 ) )

>setenv lang en_us.iso885915 --> latin9 >./a.out  current locale : c lang info : ansi_x3.4-1968 trying change locale c "" current locale : en_us.iso885915  lang info : iso-8859-15 enter string :¤¦¨´¸¼½¾ dfsafas  --> these latin1 charaters !! entered string : ¤¦¨´¸¼½¾ dfsafas --> printed !!

so , brought me down question if understanding locale , encoding correct or not.

can please clarify difference?

encoding part of locale settings , terminals affects how terminal displays , process input.

terminal encoding , locale setting program running withing terminal pretty independent , might not match or can misconfigured.

setlocale() set or query program's current locale.

terminals spawns new shell , setting lang or lc_* environment variables affect programs run withing shell.

also setting locale or encoding not prevent "other" characters entered.

this answer should clarify things.


Comments

Post a Comment

Popular posts from this blog

jquery - How can I dynamically add a browser tab? -

since using iframes house external pages are, accounts "not preferred method" , disallowed sites (flickr, one), want dynamically generate browser tabs. e.g., when user submits form, want dynamically generate tab on browser in response submitted. e.g., might want add new tab url like: http://www.bigsurgarrapata.com/contact how in jquery? you want form target attribute action attribute. http://www.w3schools.com/tags/att_form_target.asp browsers have ultimate control on result of target attribute open new tab value of _blank. <form action="contact_submit.php" target="_blank" method="post">
Read more

node.js - Getting the socket id,user id pair of a logged in user(s) -

i have web application done using node js , in it,i have authentication system requires users log in before can access pages. have 2 pages,the homepage , updates page. from read docs,a new socket id issued when user opens tab in browser. me being admin,i know socket id of logged in user , more so,the socket id,logged in user id pair logged in users. what method can use socket id,logged in user id pair make sure broadcast realtime info users online?.
Read more

keyboard - C++ GetAsyncKeyState alternative -

i using windows.h library's getasynckeystate function define key pushed on keyboard . here program returns int value of pushed key example. #include <iostream> #include <windows.h> using namespace std; int main (){ char i; for(i=8;i<190;i++){ if(getasynckeystate(i)== -32767){ cout<<int (i)<<endl; } } return 0; } but trying make opengl simple game , function appeared slow . there function not need cycle 180 times , if statement . thanks you're trying make opengl game, you're going use glfw. if that's case can away using glfwgetkey() such: if (glfwgetkey(glfw_key_up) == glfw_press) {...} if (glfwgetkey(glfw_key_down) == glfw_press) {...} that method nicely explained in tutorial 6 opengl-tutorial.org . should start first tutorial of beginners tutorials , later intermediate tutorials . if you're going make win32 window can listen wm_keydown or wm_keyup messages , virtua
Read more