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Answer 1

+2 A:

I use Vim to do this all the time. It doesn't handle HTML very well, but it does the others. It's easy to use the Vim commands to automate running it on a number of files.

rmeador 2008-10-30 20:33:01

I use gvim too, though I'm no ninja. How exactly do you get it format the source code, and how do you set the number of tabs/spaces to use for indents?

Don 2008-10-30 20:36:46

Indent spacing is set with: :set ts=4 sw=4 (to set tabstops to 4 and shiftwidth to 4). Include in an .vimrc file or an environment variable.

Jonathan Leffler 2008-10-30 21:28:01

Thanks, any idea how you do pretty printing?

Don 2008-10-31 02:44:00

the autoformatting is done by pressing the = key in command mode. Highlight the entire buffer with ggVG then tap = (you may need to do it twice). You can also do it on smaller selections of the buffer, but sometimes it assumes your selection should start at indent level 0.

rmeador 2008-10-31 16:46:32

Answer 2

A:

I use UltraEdit and find it's generally pretty good. It's not free, but it's also not that expensive.

Elie 2008-10-30 20:37:53

Answer 3

+2 A:

Wikipedia has a good-sized list. I'm interested to see what consensus might emerge here, though.

Several handle multiple languages; e.g.

PrettyPrinter, (an Open Source beautifier for every programming language)

UniversalIndentGUI (A graphical user interface for any pretty printer with live preview for the formatting settings)

prettyprinter.de, (an online beautifier for PHP, Java, C++, C, Perl, JavaScript, CSS)

le dorfier 2008-10-30 20:45:28

What I'm looking for is one pretty-printer that can do multiple languages, not one for each language.

Don 2008-10-30 20:48:27

There are several that handle multiple languages.

le dorfier 2008-10-30 20:52:18

Answer 4

+1 A:

Emacs is a personal favorite of mine. There are add-ons that allow for almost every language you can thing of.

2008-10-30 20:53:45

Answer 5

+1 A:

For Haskell, I have this in ~/bin/pp.hs:

#!/usr/bin/env runhaskell
module Main (main) where
import Language.Haskell.Parser
import Language.Haskell.Pretty
import System.Environment
pp f = case parseModule f
        of ParseOk m -> prettyPrint m
           a -> show a
main = do args <- getArgs
          mapM_ (>>= putStrLn . pp) $
            if null args then [getContents] else map readFile args

In Vim, :set equalprg=~/bin/pp.hs, select a region, hit =, and boom, it gets prettified.

Okay, it's not very general. But I figure it has a small chance of helping somebody if I add it here.

ephemient 2008-10-30 21:24:43

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one pretty printer "to rule them all"

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