GUI Editors for D

[Chris Williams]

On Linux, Mono-D seems to be pretty decent if you can actually 
figure out how to install the thing.

Personally, I go with Geany+KDbg.

Geany is lightweight, supports D syntax, provides tabs, file 
browsing, projects, built-in command promp, folder search, and 
regex search and replace. If you want it to build or debug, you 
can set up some command line statements that you apply to buttons 
in the toolbar. Note: You need to install an extra plugin to gain 
project abilities.

Though not listed as one of the D-capable debuggers, KDbg seemed 
to just straight off work out of the box, giving me better 
control of the location of breakpoints, more watchable variables, 
and the ability to see the address of pointers at the same time 
as being able to edit the location of the View Memory panel 
(unfortunately, no debugger seemed to support the ability to copy 
and paste memory addresses). Working on Phobos, it was able to 
successfully find and accept source files from both my test 
application and Phobos. Other debuggers seemed to only be able to 
find one or the other.