By default, |:CheckSyntax| is mapped to <F5>. The |:CheckSyntax| command 
takes one optional argument: the mode (default: &filetype). The 
following modes are pre-defined (and maybe some more):

    c, cpp :: Check syntax via splint
    html :: Check syntax via tidy
    javascript :: Check syntax via jsl or gjslint
    java :: Check syntax via jlint or javaCheckstyle
    lua :: Parse file (luac -p)
    php  :: Check syntax (php -l)
    phpp :: Parse a file (php -f)
    ruby :: Check syntax (ruby -c; no auto-checks)
    tex, latex :: Parse file (chktex -q -v0; no auto-checks)
    xml, docbk :: Check syntax via xmllint

See |g:checksyntax| for how to define your own syntax checkers.

This plugin was originally based on Klaus Horsten's php_console 
(vimscript #779) and it is the successor of php_check_syntax.vim 
(vimscript #1272). In opposition to php_console, it is not a php 
ftplugin but a general solution for checking the syntax when saving a 
file (using the appropriate interpreter, lint or whatsoever).


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Status:  Works for me (there may be some minor quirks)
Install: See http://github.com/tomtom/vimtlib/blob/master/INSTALL.TXT
See http://github.com/tomtom for related plugins.