Flex & Bison in Ubuntu

Instruction for flex & bison in Debian Linux (Ubuntu/Linux Mint)

PRE-REQUISITE

(A) Install flex from terminal: sudo apt-get install flex
(B) Install bison from terminal: sudo apt-get install bison
(C) If you dont have gcc installed, you can get it using sudo apt-get install gcc

+ +++++++++++++++++++++ +
+ PROCESSING +
+ +++++++++++++++++++++ +

(1) Process the .lex file with flex
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flex filename.lex
>> lex.yy.c will be created

(2) Process .y file with bison
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bison -yd filename.y
>> Two files: y.tab.c and y.tab.h will be created

(3) Compile all files with gcc
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gcc -Wall y.tab.c y.tab.h -ly lex.yy.c -lfl -o myexecutable
>> myexecutable is your desired executable file, run in in the terminal using command: ./myexecutable

Ubuntu 12.04 Quick User Review

Using Ubuntu 12.04 and quite satisfactory so far! I’ll update this post regularly as I continue using it!

Pros (+)

1. It’s cool! My Notebook was getting extremely hot and was getting turned off in Ubuntu 11.10. The notebook (Dell Inspiron 14z) is remaining cool most of the time. Even if when it get’s hot, it cools down after some time.
2. The Network Manager is improved. In previous versions of Ubuntu, network manager could not re-establish a connection if my wireless router was turned off by power failure. But in 12.04, network manager can re-establish WiFi connection after it gets disconnected from wireless router.
3. The look-&-feel is improved. Window movement, animations are catchy. It’s really looks cool!

Cons (-)

1. Like previous versions, it happens to freeze – so far it happened once in the week. Everything in the screen just freezes and I have to restart using Power switch.
2. Skype hangs some time when starting, and after that, it closes. And the whole OS acts weird. I can not find apps searching in the launcher, the problem only solves after I log-out & log-in again.

Failed to convert @drawable/ into a drawable Error in eclipse

If it’s an issue with rendering,

Close and then restart Ecplise :p

 

Type Bangla/Bengali in Google Chrome

You can write Bangla in Google Chrome installing Automatic Bangla Typing extension I’ve developed! Previously, it had full support for Firefox, but the thing was not working in Google Chrome. Now I’ve fixed some bugs & it’s fully compatible in Google Chrome (16.0.912.77)

If you’re familiar with “Phonetic” layout, you can easily type Bangla.

How to Use

Download the extension from the link above. Then in any website, click a text-field where you want to type Bangla. After that, press Control + Y to start typing Bangla. You can press Control + Y again to switch back to English.

Check out this post for more details!

Fix Bangla Font in Google Chrome in Ubuntu

You need Solaimanlipi 2.0 for rendering font correctly in Google Chrome. You can download a copy of the font (customized by Saif Hassan) from the link below:

 

Download SolaimanLipi 2.0

 

The font above was “customized for Linux” – I don’t know much about this customization. So If you’re interested visit Saif Hassan’s post and download the font’s versions for Windows/Mac, if the font above does not work!

 

Install the Font

Double-click on the font and click “Install”

 

Enable the font in Chrome

 

Open Google Chrome and select the downloaded font as the screenshot below suggests: