Source formatting for long expressions.

[sameer]

why not just do it in xml?

Christopher Armstrong <radix at twistedmatrix.com> wrote in message news:<mailman.1023668414.25769.python-list at python.org>...
> >>>>> "ca" == Christopher Armstrong <radix at twistedmatrix.com> writes:
>  
> >>>>> "mvl" == Martin v Loewis <martin at v.loewis.de> writes:
> 
>     mvl> As you can see, it tries to align further arguments to a function
>     mvl> together with the opening parenthesis. I would assume that any other
>     mvl> auto-formatters use the same style, so you won't get any "sane"
>     mvl> indentation until you drop the nesting level (perhaps in favour of
>     mvl> method invocations).
> 
> [snip..]
>     ca> I'm probably going to end up doing this myself, and I thought of
>     ca> something while reading your message. I could have two steps for
>     ca> formatting: template- generation and indentation. the first step would
>     ca> generate something like a repr() of all of my objects, but with \ns and
>     ca> \ts embedded at strategic locations. Then I could replace all \ts with
>     ca> current_indent_level, calculating current_indent_level by counting (s,
>     ca> {s, and [s. I'm going to try this out now.  :-)
> 
> 
> I got this working. It was fairly easy, once I got a templated source 
> representation::
> 
> def indentify(s):
>     out = []
>     stack = []
>     for ch in s:
>         if ch in ['[', '(', '{']:
>             stack.append(ch)
>         elif ch in [']', ')', '}']:
>             stack.pop()
>         if ch == '\t':
>             out.append('  '*len(stack))
>         else:
>             out.append(ch)
>     return string.join(out, '')
> 
> 
> This is a fairly stupid indenter, but it works for my needs::
> 
> >>> print aot.indentify("Instance('twisted.internet.app.Application', \
> \n\tfoo=bar, \n\tbaz={\n\t'quux': 1, \n\t'spam': \n\tInstance('Eggs', \
> \n\tmore='state')})") #this source will really be generated by my __repr__s.
> Instance('twisted.internet.app.Application', 
>   foo=bar, 
>   baz={
>     'quux': 1, 
>     'spam': 
>     Instance('Eggs', 
>       more='state')})