Merge pull request #215 from rohieb/fix/task-xml-escape

[etc/awesome.git] / helpers.lua

diff --git a/helpers.lua b/helpers.lua
index 137bd6ab54f4e36bd051f84e1b1cf39cd515b25f..8fb794c1f0e1cb790d02f65e27fb80825ff85b53 100644 (file)
--- a/helpers.lua
+++ b/helpers.lua
@@ -49,13 +49,25 @@ end
 -- list/table if the file does not exist
 function helpers.lines_from(file)
   if not helpers.file_exists(file) then return {} end
-  lines = {}
+  local lines = {}
   for line in io.lines(file) do
     lines[#lines + 1] = line
   end
   return lines
 end
 
+-- match all lines from a file, returns an empty
+-- list/table if the file or match does not exist
+function helpers.lines_match(regexp, file)
+       local lines = {}
+       for index,line in pairs(helpers.lines_from(file)) do
+               if string.match(line, regexp) then 
+                       lines[index] = line
+               end  
+       end
+       return lines
+end
+
 -- get first line of a file, return nil if
 -- the file does not exist
 function helpers.first_line(file)