Programming :: Isatty - Terminal Emulators Don't Render Right To Left Languages Properly
Oct 13, 2010
I'm new to Linux and these forums, but programmed in C++ on other systems. I discovered several Linux terminal emulators don't render Right to Left languages properly and so as an exercise I writing my own. It based on GtkTextView widget. Basically is working, but the shell won't issue prompts because it doesn't think my terminal emulator is actually a terminal (isatty returns false)
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Jun 10, 2011
I cannot get some html files on my pc to render properly, Epiphany and Iceweasel show some non-latin characters as garbage but shows others of the same language correctly although Gedit shows the same files, with or without the html code, correctly. I have all the locales installed. Can someone point me to a solution? I am misleading you when I say "garbage", it is always a pair of question marks.
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May 30, 2011
For some reason, gnome-terminal, terminator, mrxvt, rxvt, tilda and a few other terminal applications I downloaded are unable to register the 'a' key on my keyboard. However, every other application is able to register my keypresses perfectly. Does anybody know what might be causing this, or what logs/diagnostic tools I could use to find out the reason for this odd behavior?
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Nov 21, 2010
I'm looking for a terminal emulator that does the same thing as gnome-terminal or konsole, except written in Java.
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Oct 12, 2010
installpkg stopped working in my terminal emulators in any window manager.
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May 4, 2011
I just installed Ubuntu 11.04 with unity. Occasionally I will have text in firefox that doesn't render properly. It will have horizontal lines through it. I have attached an example of the problem I am having.
Is this a bug in 11.04?
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Jun 26, 2010
I just installed Xubuntu 10.04 Lucid Lynx on an Intel 1.5GHz, 500 MB RAM, 128 MB video card system, 80 GB hard drive (it's a 5 year old system)....My system meets the requirements according to this [URL]
But for some reason, things aren't displaying correctly. The best way to describe it is that it's almost like Xubuntu can't "repaint" the graphics correctly. So I see distorted lines or text that doesn't render completely.
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Feb 12, 2011
It seems that I have been running Firefox unbeknownst to me with a broken configuration. It seems that if I enable the Quote: Allow pages to choose their own fonts, instead of my selections above in Edit->Preferences->Content->Fonts&Colors->Advanced, pages will no longer be render properly -- they are mostly blank.When running on the command line, I notice that I get errors from Pango (whatever that is) and think there may be a connection.
I tried doing sudo aptitude reinstall libpango-perl libpango1.0-0 libpango1.0-common libpangomm-1.4-1 but it didn't fix the problems. (I haven't yet tried uninstalling pango since it looks like it removes some crucial components.)I also tried sudo dpkg-reconfigure fontconfig and it didn't help.I'm guessing that the fonts cannot be scaled.This otherwise wouldn't be an issue, but it seems that some Firefox addons forcibly ignore the configured fonts and those pop-up windows are mostly blank/empty and therefore useless.
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Oct 10, 2010
So far, as a former Chrome user on Windows, I am enjoying Chromium. However, there is one glaring problem that is bugging me, and is disrupting my usage of the browser.
Chromium will not show Japanese fonts properly. It's not that everything shows up as boxes. The problem is that certain characters will show in Japanese, and certain will show in Korean, thereby making the Japanese text unreadable. Copying and pasting into gedit allows me to read the Japanese text, and Firefox never had this problem, however, within Chromium, this is unreadable.
Here is a picture to show you what I mean:
Has anyone else had this problem, and fixed it? I have installed the language packs and have tried setting things to different unicode fonts and changing the encoding to unicode and even Japanese, and continue to get these errors.
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Aug 14, 2011
I upgraded from 10.10 to 11.04Most things appear to work, however I can not use my terminalI can open the terminal (the standard terminal, as well as guake)however it will not render on the screen.It appears as an invisible window. I can type into the terminal area and the commands will process, but I can't see what im typing.Fspot is another window which will not render, however chromium and other programs open fine.I have changed my nvidia driver several times (the default one, nvidia's one and nouveau's manual compile), but this doesn't resolve the issue.Ive tried editing my grub conf file /etc/default/grub and un-commented GRUB_GFXMODE=1024X768
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Nov 2, 2010
My question is: what option can I set in vim to see the colouring inside the editor as I would get it in my terminal (and switch off any additional syntax highlighting)?
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Jan 20, 2011
The first is about implementing function calls. The way I currently have it is that functions are called with a C++ std::vector of nodes as the parameters. How would I turn a comma-seperated list of expressions into a C++ vector in the grammar?Second, how do you implement left-associative operators in a parser that does not allow left recursion?
And third, what would be the best internal representation of integers? A C++ int seems simplest, but limited. Using GMP seems more versatile, but I'm afraid it might seriously slow down the interpreter compared to C++ ints.
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Jun 28, 2009
I've been working in the real world for a year making some money to go back and finish my masters, and now I'm coming to the end of my contract and am realising how little i remember and how small my scope has become; i basically do shell scripts and perl these days, and its making me uneasy. So instead of bitching about it , I'm going to endevor to complete Project Euler Using randomly generated programming languages for each problem, selected from
And post the fruits of my attempts at my blog (shameless plug) aswell as opening up my svn repository when I'm done. (altho i need to ask in another thread about svn permissions....)To my shame i havent ever touched C#, JavaScript, Ruby or Python, so all in all its going to be very interesting how much i screw up.Anyone have any additional ideas, or languages I'm missing or such? I was considering TCL or Haskell or Erlang at a strech, but i dont know how useful these three would be.
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Jun 10, 2010
I want to know your opinions on the best combination of programming languages to learn if you want to learn more than one. An explanation of your choices would be real nice. I've included a multiple-choice poll that has the langauges from the Member's Choice Awards 2009 list of best programming languages on it. Please vote for your choice of languages also. It should be interesting to see what the numbers are like when people can vote this way, and choose more than one language.I'm voting for Python/C just as an "overall" opinion. It's what I'm going to learn. I've done quite a bit of reading and experimenting and this is what I've personally settled on. My opinion is just a personal "overall" opinion. You can also pick just a single language, and vote for just a single language if you think it's better to learn just one.
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May 30, 2009
Forgive me if this question displays volumes of ignorance, but which programming languages can/do run natively in linux/the various linux distributions?I'm not exactly new to programming, but all of my work so far has been done in .NET and Java environments, and as such, has involved using Windows native-running programs or programs that run in the JRE.If this is a stupid question, please help me to ask a better one.
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Mar 28, 2011
I've installed Fedora 14 in a PC. It runs an application where particular event execute by clicking the left mouse button.Problem is that, left button click doesn't work properly. Sometime event executes with simple double click and sometimes after 5-7 double clicks only, event execute.
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Aug 13, 2010
I am going to school for Network Engineering and hope to one day be a systems administrator or something similar. I was wondering what some good scripting languages would be to learn. I know the obvious, Python, Perl, Shell Scripting and PHP, but what else?
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Mar 25, 2010
have a previous background in internet programming languages such as XHTML, DHTML, CSS and javacsript. I would like to start programming and managing my linux system (like an expert) and starting on linux projects also. My question is which is the best programming language to learn: C, C++ (may b even C+), python, Perl etc... I'm learning BASH right now cause I know its a necessity for linux systems. but what would you guys suggest after that I learn.
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May 4, 2011
I am just starting to learn Linux and am interested in a career in Linux. Actually I wanna go for RHCE, which is the first step for Sys Admin..right?? Basically I do NOT want to go into programming/developing as I don't feel it's my cup of tea (and also may be it sort of boggles me). Still, from what I gather I am having confusions regarding whether I should learn any programming language for a career in Linux.
Here I am avoiding programming..and now I get to hear that Linux career uses programming..That's sort of frustrating...My friend told me I need to "master" C. Do I need to learn some programming language?? If yes, then to how much extent?
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Aug 18, 2009
Well I have been interested in programming for a while, and just found out about Linux and Unix. I started out with Java, but now I know I bunch: Flash, C++, C and others. I was working on a mac so I made a few flash games then started to work on iPhone games. I was board one day and I found out about Unix and I thought that would be something else to try.So in an attempt to learn about Unix I have been reading different articles about it, and have heard of using different languages in one program. The article I was reading didn't give any examples, and it assumed the reader has programmed Unix before.
So how do you write programs in multiple languages, which languages would you use, and why would you want to do that?
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Oct 15, 2010
I have recently graduated from uni and during my time there I have developed an interest in HDL, specifically Verilog. As my current job doesn't lend itself to doing anything in verilog so I decided to keep myself sharp by designing a 32 bit processor that is similar to (but not the same as) the MIPS processor it will certainly be RISC. While starting work on it I have decided to start a blog detailing what I have done including the source file as I am entering my work into the wide world I think it needs a licence but I am not looking to make any money or even to derive any fame from what I'm doing. Like I said the main reason to do it is to keep me active in using HDLs.
I hope to gain from the blog suggestions for alternative(better) ways to do what I am doing, for people to use what I have done as an example of a medium sized project in verilog and to force me to have some form of documentation on my project. That's enough self publication to the question. Is the GPL (either version 2 or 3) applicable to work in HDL as it is not a traditional programming language but shares many of the same features? It certainly does not feel like I should use a CC license. I'm not sure this is the correct forum for this question but it seems most applicable.
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Jun 29, 2011
i'm wondering which scripting language is better for distro related activity such as cron jobs , startup scripts and similar things.why is bash mostly used ? is it because of efficiency ?what about perl , python or php as potential successors to bash ?
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Aug 26, 2011
I find xcompmgr more than adequate for making a desktop look pretty modern, and I don't like the more extravagentCompiz gimmicks - but there is one thing that irritates when using xcompmgr which someone here might have worked round.
Rounded window borders don't draw and redraw properly when using the Terminal (gnome-terminal and the LXDE and Xfce ones) or system monitor and moving them from their default place. You get this little white botch at the corners. I'm not massively technical and I'm ambivalent about how much more I want to learn as I have plenty of creative outlets already, but I would like to solve this. Somehow xcompmgr is treating these programs as a different class? It's capable of drawing the window borders properly as it is just these two programs that get botched. Possibly this doesn't get noticed as maybe people usually use xcompmgr with openbox and LXDE and their square window borders. I did do a search but there was nothing matching what I saw.
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Feb 19, 2011
I was wondering about a package that can be used to write and compile/run programs in different programming languages. I was also wondering how possible it is to program in Visual Basic 2010 in openSUSE if at all.
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Nov 23, 2010
So a friend and I are new-ish to linux (I am reasonably comfortable with basic /etc text editing, command admin). We are, however, completely new to programming and (x)html. We have a few (what we think are) interesting ideas for dynamic websites.Ideally we would like to develop our own course of study to get to the point where we have a basic understanding of programming so that our adventures in the programming of a dynamic website would be possible. Much of what we need learn to do is the following: use daily updated public-domain data from several other sites, manipulate that data algorithmically, which would then yield updating output on our site. Here is what I would like to do:
1. learn the basics of programming with a language that would teach good code habits and fundamental understanding.
2. become comfortable with (x)html
3. learn another language for the extension of (x)html into a dynamic data-heavy website.
Question could you please suggest a way about going about 1>2>3?Ideally the language of (1) would be something that would not be "wasted" just on web design etc. As a language, C really appeals to me. However, if learning this wouldn't lend itself to being helpful in learning another language for webdesign maybe I shouldn't use it(?).If (1) weren't to be C, what language would be funadmental enough to teach good coding but also be helpful in learning (3)
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Jul 30, 2011
other than Python, which languages are built into most Linux distros, using a real-time interpreter, like the Python prompt, where you can just enter some commands and test out ideas before actually creating a file with your program?
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Aug 30, 2010
I'd like to change the login thing on the left of the terminal: [james@xxxxxx home]$ But can't figure out what it's called to do a search, so figured I'd ask all in one! What is it called, and how do I customise it in bash_profile ?
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Nov 12, 2010
I don't actually have Ubuntu installed to my hard drive yet, I'm still playing with it on the demo CD. I'm new to linux, but the terminal is very familiar to me (iPhone jailbreaker).
Thing is, Terminal is giving me the finger anytime it can. I've yet to successfully do something on it. Simple things like "dpkg" or "cd any directory at all" are being a pain, and I can't put anything in /user/.Is this cause I'm booting it using a "demo CD", or does my computer just hate Ubuntu and I should give up now?
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Mar 5, 2011
I have been using Ubuntu for a week and getting on well with it. After reading reviews I decided to try Kubuntu. I installed it from the terminal and all seemed to go well. Now when I start the computer and select ubuntu it goes to a log in screen. I type in my user name and password and all I get is a terminal screen in the top left. If I close this I go through a 'broken screen' and back to the sign in.
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Apr 14, 2011
When it launches, sometimes a few mins later, the upper left of the screen (where gnome-terminal sits) freezes and becomes unresponsive. The cursor always stays as the 'text entry' cursor when in the region. If I alt-drag the window and close, nothing changes.It only goes away when I right click the area (even if I have moved/closed the terminal window) I have terminal options so I select 'close' then the screen resumes.
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