Better parser error messages

Author: zmoazeni

CHANGELOG.md

@@ -1,6 +1,7 @@
 ## (Unreleased) ##
 
 * Allows the user to specify ignored properties and selectors
+* Better parse error messages
 
 ## 0.2.1 - 3/28/2013 ##
 

lib/csscss/cli.rb

@@ -65,8 +65,13 @@ def execute
       end
 
     rescue Parslet::ParseFailed => e
-      puts "Had a problem parsing the css"
-      puts e.cause.ascii_tree
+      line, column = e.cause.source.line_and_column
+      puts "Had a problem parsing the css at line: #{line}, column: #{column}".red
+      if ENV['CSSCSS_DEBUG'] == 'true'
+        puts e.cause.ascii_tree.red
+      else
+        puts "Run with CSSCSS_DEBUG=true for verbose parser errors".red
+      end
       exit 1
     end