Partial matching for restrict_sources

[hc-nolan]

Originally discussed in #8.

Expanded the pattern matching expression so it is more precise: "^" .. source .. "~%d+(%.%d+)?$" - so "python" will match directories python, python~3, or python~3.13.

---

Added partial string matching for restrict_sources. Previously, the exact directory name had to be entered, e.g. python~3.13 rather than just python. With the new approach, if restrict_sources contains a value python, any directories starting with python will be considered valid. The motivation for this is demonstrated in the README example - we can now automatically restrict the sources for the language of the current file, and we won't have issues if the language docs have the version in their name:

keys = {
  {
    "<leader>aps",
	function()
	  local lang = vim.bo.filetype
	  require("apidocs").apidocs_search({ restrict_sources = { lang } })
	end,
	desc = "Apidocs: Search, restricted to current file language"			
  },
},

[hc-nolan]

Incorporated your feedback

One thing to note is that I haven't been successful in getting this to work with Telescope's apidocs_open(), and I'm really not sure what the best way would be to go about making it work for that function.

[emmanueltouzery]

for telescope apidocs_open, the modifications in line 40 of lua/apidocs.lua ought to do it. "candidates" is what's fed into the telescope picker?

[hc-nolan]

for telescope apidocs_open, the modifications in line 40 of lua/apidocs.lua ought to do it. "candidates" is what's fed into the telescope picker?

Oh yeah, you're right. I must have switched branches when I looked at Telescope because I remember it not working, but it is indeed working properly in partial-matching branch.