added erc

erc

@@ -0,0 +1,56 @@
+set_tab(2)
+
+function starts(String,Start)
+   return string.sub(String,1,string.len(Start))==Start
+end
+
+meta_commands["blame"] = function()
+  _, y = get_coords()
+  handle = io.popen("git blame --porcelain -L"..tostring(math.floor(y)+1)..","..tostring(math.floor(y)+1).." "..get_filename())
+  lines = handle:read("*a")
+  handle:close()
+
+  author = string.match(lines, "author (%a+)")
+
+  message(author)
+end
+
+keys["%"] = function()
+  s = get_text()
+  count = 0
+
+  for word in s:gmatch("%w+") do count = count + 1 end
+
+  message(count .. " words")
+end
+
+keys["!"] = function()
+  command = prompt("shell command: %s")
+  command = string.gsub(command, "%$", get_filename())
+  handle = io.popen(command)
+  result = handle:read("*a")
+  handle:close()
+
+  result = string.gsub(result, "\n", " ")
+  message(result)
+end
+
+function get_meta_commands()
+  res = ""
+
+  for k, _ in pairs(meta_commands) do
+    res = res .. k .. ", "
+  end
+
+  return res
+end
+
+function get_keys()
+  res = ""
+
+  for k, _ in pairs(keys) do
+    res = res .. k .. ", "
+  end
+
+  return res
+end