mboxc: support for multiple mbox files

Widget takes a table with full paths to mbox files as an argument.

README

@@ -168,8 +168,8 @@ vicious.widgets.mbox
   - takes the full path to the mbox as an argument
 
 vicious.widgets.mboxc
-  - provides the count of total, old and new messages in a mbox
-  - takes the full path to the mbox as an argument
+  - provides the count of total, old and new messages in mbox files
+  - takes a table with full paths to mbox files as an argument
 
 vicious.widgets.mdir
   - provides a number of new and unread messages in a Maildir

mboxc.lua

@@ -10,44 +10,49 @@ local string = { find = string.find }
 -- }}}
 
 
--- Mboxc: provides the count of total, old and new messages in a mbox
+-- Mboxc: provides the count of total, old and new messages in mbox files
 module("vicious.mboxc")
 
 
 -- {{{ Mbox count widget type
 local function worker(format, mbox)
     -- Initialise counters
-    local old = 0
-    local total = 0
+    local count = {
+        old   = 0,
+        total = 0,
+        new   = 0
+    }
 
-    -- Open the mbox
-    local f = io.open(mbox)
+    -- Get data from mbox files
+    for i=1, #mbox do
+        local f = io.open(mbox[i])
 
-    while true do
-      -- Read the mbox line by line, if we are going to read some
-      -- *HUGE* folders then switch to reading chunks
-      local lines = f:read("*line")
-      if not lines then break end
+        while true do
+          -- Read the mbox line by line, if we are going to read some
+          -- *HUGE* folders then switch to reading chunks
+          local lines = f:read("*line")
+          if not lines then break end
 
-      -- Find all messages
-      --  * http://www.jwz.org/doc/content-length.html
-      local _, from = string.find(lines, "^From[%s]")
-      if from ~= nil then total = total + 1 end
+          -- Find all messages
+          --  * http://www.jwz.org/doc/content-length.html
+          local _, from = string.find(lines, "^From[%s]")
+          if from ~= nil then count.total = count.total + 1 end
 
-      -- Read messages have the Status header
-      local _, status = string.find(lines, "^Status:[%s]RO$")
-      if status ~= nil then old = old + 1 end
+          -- Read messages have the Status header
+          local _, status = string.find(lines, "^Status:[%s]RO$")
+          if status ~= nil then count.old = count.old + 1 end
 
-      -- Skip the folder internal data
-      local _, intdata = string.find(lines, "^Subject:[%s].*FOLDER[%s]INTERNAL[%s]DATA")
-      if intdata ~= nil then total = total -1 end
+          -- Skip the folder internal data
+          local _, intdata = string.find(lines, "^Subject:[%s].*FOLDER[%s]INTERNAL[%s]DATA")
+          if intdata ~= nil then count.total = count.total - 1 end
+        end
+        f:close()
     end
-    f:close()
 
     -- Substract total from old to get the new count
-    local new = total - old
+    count.new = count.total - count.old
 
-    return {total, old, new}
+    return {count.total, count.old, count.new}
 end
 -- }}}