quoted args are optional

core.lua

@@ -7,6 +7,9 @@ local tools = require 'api.tools'
 local api   = require 'api.api'
 api.__index = api
 
+api.parseArgs   = tools.parseArgs
+api.unparseArgs = tools.unparseArgs
+
 function api:_ev(t, i, name, ...)
   local v = t[i]
   if v.name == name then
@@ -37,38 +40,8 @@ local function receiveUpdate(self, update)
 
       -- remove needn't text
       msg.text = msg.text:sub(#cmd + #(to or '') + 3)
-
-      -- "quoted" and not quoted args support
-      -- inside quotes, buffer and final args
-      local iq, buf, args = false, '', {}
-      local qt, esc = nil, false -- quote type and escape, addition
-
-      -- helper function, add args and clean buffer
-      local function psh()
-        if #buf > 0 then table.insert(args, buf) end
-        buf = ''
-        qt = nil
-      end
-
-      for i = 1, #msg.text do
-        local v = msg.text:sub(i, i)
-        print(v, buf, iq)
-        -- if space and not inside quotes
-        if (v == ' ' or v == '\n' or v == '\t')
-        and not iq then psh()
-
-        elseif esc then esc, buf = false, buf.. v
-        elseif v == '\\' then esc = true
-        
-        elseif (not qt or qt == v)
-        and (v == '"' or v == "'") then
-          psh()
-          qt, iq = v, not iq -- quote type, inside quote
-
-        else buf = buf.. v -- append buffer
-        end
-      end
-      psh() -- if has something
+      local args = {}
+      for v in msg.text:gmatch '%S+' do table.insert(args, v) end
 
       msg.cmd  = cmd
       msg.args = args

tools.lua

@@ -18,6 +18,57 @@ function tools.fetchCmd(text)
     text:match '/[%w_]+@([%w_]+)' -- to
 end
 
+function tools.parseArgs(text)
+  -- inside quotes, buffer and final args
+  local iq, buf, args = false, '', {}
+  local qt, esc = nil, false -- quote type and escape, addition
+
+  -- helper functin, add args and clear buffer
+  local function psh()
+    if #buf > 0 then table.insert(args, buf) end
+    buf, qt = '', nil
+  end
+
+  for i = 1, #text + 1 do
+    local v = text:sub(i, i)
+    -- if space and inside quotes, or end of string
+    if ((v == ' ' or v == '\n' or v == '\t') and not iq)
+    or v == ''
+    then psh()
+
+    elseif esc then esc, buf = false, buf.. v
+    elseif v == '\\' then esc = true
+
+    -- if (no current quote or same quote) and quote is supported
+    elseif (not qt or qt == v)
+    and (v == '"' or v == "'")
+    then psh()
+      qt, iq = v, not iq -- quote type, inside quote
+
+    else buf = buf.. v -- append buffer
+    end
+  end
+
+  return args
+end
+
+function tools.unparseArgs(args)
+  -- args to string
+  local text = ''
+
+  for i = 1, #args do
+    local v = args[i]
+    if type(v) == 'string' then
+      if v:match '%s'
+      then text = text.. '"'.. v ..'" '
+      else text = text.. v ..' '
+      end
+    end
+  end
+
+  return text
+end
+
 function tools._req(url, meth, data, ctype)
   assert(url,  'Provide URL!')
   assert(meth, 'Provide method!')