Run code directly from vim (#594)

Author: pratyaypande

README.md

@@ -364,6 +364,13 @@ Shortcuts using `<leader>` instead of special characters:
     map <leader>sa zg
     map <leader>s? z=
 
+### Running Code
+To run code directly from vim, press `F5`. The currently open code will execute without you having to type anything.
+
+Can be used to execute code written in C, C++, Java, Python, Go, Octave, Bash scripts and HTML. To edit how you want your code to be executed, make changes in the file 
+```
+~/vim_runtime/vimrcs/extended.vim
+```
 
 ### Cope
 Query `:help cope` if you are unsure what cope is. It's super useful!

install_awesome_vimrc.sh

@@ -12,7 +12,6 @@ source ~/.vim_runtime/vimrcs/basic.vim
 source ~/.vim_runtime/vimrcs/filetypes.vim
 source ~/.vim_runtime/vimrcs/plugins_config.vim
 source ~/.vim_runtime/vimrcs/extended.vim
-
 try
   source ~/.vim_runtime/my_configs.vim
 catch

vimrcs/extended.vim

@@ -172,3 +172,59 @@ endfunc
 func! CurrentFileDir(cmd)
     return a:cmd . " " . expand("%:p:h") . "/"
 endfunc
+
+"=================================================================================
+"
+"   Following file contains the commands on how to run the currently open code.
+"   The default mapping is set to F5 like most code editors.
+"   Change it as you feel comfortable with, keeping in mind that it does not
+"   clash with any other keymapping.
+"
+"   NOTE: Compilers for different systems may differ. For example, in the case
+"   of C and C++, we have assumed it to be gcc and g++ respectively, but it may
+"   not be the same. It is suggested to check first if the compilers are installed
+"   before running the code, or maybe even switch to a different compiler.
+"
+"   NOTE: Adding support for more programming languages
+"
+"   Just add another elseif block before the 'endif' statement in the same
+"   way it is done in each case. Take care to add tabbed spaces after each
+"   elseif block (similar to python). For example:
+"
+"   elseif &filetype == '<your_file_extension>'
+"       exec '!<your_compiler> %'
+"
+"   NOTE: The '%' sign indicates the name of the currently open file with extension.
+"         The time command displays the time taken for execution. Remove the
+"         time command if you dont want the system to display the time
+"
+"=================================================================================
+
+map <F5> :call CompileRun()<CR>
+imap <F5> <Esc>:call CompileRun()<CR>
+vmap <F5> <Esc>:call CompileRun()<CR>
+
+func! CompileRun()
+exec "w"
+if &filetype == 'c'
+    exec "!gcc % -o %<"
+    exec "!time ./%<"
+elseif &filetype == 'cpp'
+    exec "!g++ % -o %<"
+    exec "!time ./%<"
+elseif &filetype == 'java'
+    exec "!javac %"
+    exec "!time java %"
+elseif &filetype == 'sh'
+    exec "!time bash %"
+elseif &filetype == 'python'
+    exec "!time python3 %"
+elseif &filetype == 'html'
+    exec "!google-chrome % &"
+elseif &filetype == 'go'
+    exec "!go build %<"
+    exec "!time go run %"
+elseif &filetype == 'matlab'
+    exec "!time octave %"
+endif
+endfunc