diff --git a/pret-pas.lua b/pret-pas.lua
index 7508e63..704c011 100644
--- a/pret-pas.lua
+++ b/pret-pas.lua
@@ -1,9 +1,9 @@
 if not modules then modules = { } end modules ['pret-pas'] = {
-    version   = 1.0,
-    comment   = "custom pretty printer for Pascal code",
-    author    = "Stefan Müller, Chemnitz DE",
-    copyright = "Stefan Müller",
-    license   = "see context related readme files"
+	version   = 1.0,
+	comment   = "custom pretty printer for Pascal code",
+	author    = "Stefan Müller, Chemnitz DE",
+	copyright = "Stefan Müller",
+	license   = "see context related readme files"
 }
 
 -- The code formatting is adapted from Lazarus, a Free Pascal RAD IDE, which
@@ -31,7 +31,7 @@ visualizer.reservedwords = {
 	-- "dispose", "exit", "false", "new", "true",
 
 	-- Object Pascal
-    "as", "class", "dispinterface", "except", "exports", "finalization",
+	"as", "class", "dispinterface", "except", "exports", "finalization",
 	"finally", "initialization", "inline", "is", "library", "on", "out",
 	"packed", "property", "raise", "resourcestring", "threadvar", "try",
 
@@ -48,14 +48,14 @@ visualizer.reservedwords = {
 local known_words = { }
 
 for k,v in next, visualizer.reservedwords do
-    known_words[v] = k
+	known_words[v] = k
 end
 
 local colors = {
-    "prettyone", -- red: compiler directive, symbol
-    "prettytwo", -- green: assembler (dark green)
-    "prettythree", -- blue: comment, number (dark blue)
-    "prettyfour", -- yellow
+	"prettyone", -- red: compiler directive, symbol
+	"prettytwo", -- green: assembler (dark green)
+	"prettythree", -- blue: comment, number (dark blue)
+	"prettyfour", -- yellow
 }
 
 local reserved_style = "\{\\bf "
@@ -64,7 +64,7 @@ local comment_style = "\{\\sl "
 local inlongcomment, inlongcomment_alt, incompdirec, inasm = false, 0, false, false
 
 local function flush_pas_word(word, state)
-    if word then
+	if word then
 		local lword = string.lower(word)
         local id = known_words[lword]
         if id then
@@ -88,7 +88,7 @@ local function flush_pas_word(word, state)
 				tex.write(word)
 			end
         else
-            tex.write(word)
+        	tex.write(word)
         end
     end
 	return state
@@ -112,14 +112,14 @@ local function flush_whatever(str)
 end
 
 function visualizer.reset()
-    inlongcomment, inlongcomment_alt, incompdirec, inasm = false, 0, false, false
+	inlongcomment, inlongcomment_alt, incompdirec, inasm = false, 0, false, false
 end
 
 function visualizer.flush_line(str, nested)
-    local state = 0
+	local state = 0
 	local incomment, instring = false, false
 	--local code, comment = nil, nil
-    buffers.currentcolors = colors
+	buffers.currentcolors = colors
 
 	if inlongcomment or (inlongcomment_alt == 2) or incompdirec then
 		incomment = true