Added Tab-completion to Lua Command Entry.

1 files changed, 36 insertions, 0 deletions

diff --git a/core/ext/command_entry.lua b/core/ext/command_entry.lua
new file mode 100644
index 00000000..8c796610
--- /dev/null
+++ b/core/ext/command_entry.lua
@@ -0,0 +1,36 @@
+-- Copyright 2007-2008 Mitchell mitchell<att>caladbolg.net. See LICENSE.
+
+local ce = textadept.command_entry
+
+---
+-- Gets completions for the current command_entry text.
+-- This function is called internally and shouldn't be called by script.
+-- @param command The command to complete.
+-- @return sorted table of completions
+function ce.get_completions_for(command)
+  local textadept = textadept
+  local substring = command:match('[%w_.:]+$') or ''
+  local path, o, prefix = substring:match('^([%w_.:]-)([.:]?)([%w_]*)$')
+  local ret, tbl = pcall(loadstring('return ('..path..')'))
+  if not ret then tbl = getfenv(0) end
+  if type(tbl) ~= 'table' then return end
+  local cmpls = {}
+  for k in pairs(tbl) do
+    if type(k) == 'string' and k:match('^'..prefix) then
+      cmpls[#cmpls + 1] = k
+    end
+  end
+  if path == 'buffer' then
+    if o == ':' then
+      for f in pairs(textadept.buffer_functions) do
+        if f:match('^'..prefix) then cmpls[#cmpls + 1] = f end
+      end
+    else
+      for p in pairs(textadept.buffer_properties) do
+        if p:match('^'..prefix) then cmpls[#cmpls + 1] = p end
+      end
+    end
+  end
+  table.sort(cmpls)
+  return cmpls
+end