g_filename_display_name()

[muppet <scott asofyet org>]

squentin pointed out in irc that there is no bindings for  
g_filename_display_name()[1], or for its recommended brother,  
g_filename_display_basename()[2].

Now, looking at this for a few minutes, there are several observations:

- We have gperl_sv_from_filename() and gperl_filename_from_sv(), and  
Glib::filename_to_unicode() and Glib::filename_from_unicode().  These  
use g_filename_(to|from)_utf8() internally.

- g_filename_to_utf8() can fail if the filename is hosed, making  
filename_to_unicode() rather annoying to use.  This is why the  
display* variants were introduced -- to try really hard to recover  
from those failures and make a reasonable conversion.

- We can add bindings for g_filename_display_(base)?name(), but how  
would we add them?  Glib::filename_display_name() looks wrong.   
Glib::Filename::display_name() looks alright, and may make more sense.

- We could just change gperl_filename_from_sv() to use  
g_filename_display_name().  What would this mean for compatibility?   
You'd still have the problem of having a full path to truncate when  
you just wanted to display a basename.


Thoughts?



[1] http://developer.gnome.org/doc/API/2.0/glib/glib-Character-Set- 
Conversion.html#id2810046
[2] http://developer.gnome.org/doc/API/2.0/glib/glib-Character-Set- 
Conversion.html#id2810157

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