I couldn't find a nice completion plugin to handle Delphi and/or Object Pascal, so I've decided to write my own.
There's nothing particularly fancy here, this plugin simply adds a completion function that is bound to omnifunc
for *.pas files.
The only requirement for the completion function to work is a tags file that describes which source file each of the
classes/record exist in, so that it can quickly parse the definition of the given class/record.
ctags can be used to generate a tags file.
The following command should be enough to get you started:
ctags --langdef=Delphi --langmap=Delphi:.pas --regex-Delphi=/(\w+)\s*=\s*class/\1/c,class/ --regex-Delphi=/(\w+)\s*=\s*record/\1/r,record/ -R <<path_to_source_directory>>
If you're interested in having more symbols than just classes and records recognised by ctags, then you can use my
.ctags file, which I've left below:
--langdef=Delphi
--langmap=Delphi:.pas
--regex-Delphi=/(\w+)\s*=\s*class/\1/c,class/
--regex-Delphi=/(\w+)\s*=\s*record/\1/r,record/
--regex-Delphi=/(\w+)\s*=\s*\(/\1/e,enum/
--regex-Delphi=/function\s*(\w+)\s*[;\(]/\1/f,function/
--regex-Delphi=/function\s*\w+\.(\w+)\s*[;\(]/\1/f,function/
--regex-Delphi=/procedure\s*(\w+)\s*[;\(]/\1/p,procedure/
--regex-Delphi=/procedure\s*\w+\.(\w+)\s*[;\(]/\1/p,procedure/
Having these extra symbols won't improve the completion function (though it may make it slower since it has to go
through more symbols to find the relevant class/record), it's pretty handy for navigating code with ctrl-], :tag,
and/or :tselect to jump directly to a tag.
When in insert mode in a file with the .pas extension, ctrl-x ctrl-o can be used to invoke the completion function.
If you want to try this plugin, without having to generate a tags file, I have set up an example with a tags file
already in the example directory. If you open example/src/Example.pas in vim after installing this plugin, then you
should be able to invoke the completion function on the incomplete lines.
- Generics are not handled.
- Multiline declarations are not handled.