plaintext.rb in remote_table-2.0.1

- old
+ new

@@ -1,6 +1,7 @@
 require 'fileutils'
+require 'unix_utils'
 
 class RemoteTable
   # Helper methods that act on plaintext files before they are parsed
   module Plaintext      
     CONSIDERED_HARMFUL = [
@@ -13,15 +14,19 @@
     # Remove bytes that are both useless and harmful in the vast majority of cases.
     def delete_harmful!
       local_copy.in_place :perl, "s/#{CONSIDERED_HARMFUL.join('//g; s/')}//g"
     end
     
-    # No matter what the file encoding is SUPPOSED to be, run it through iconv to make sure it's UTF-8
+    # No matter what the file encoding is SUPPOSED to be, run it through the system iconv binary to make sure it's UTF-8
     #
     # @example
     #   iconv -c -t UTF-8//TRANSLIT -f WINDOWS-1252
     def transliterate_whole_file_to_utf8!
-      local_copy.in_place :iconv, RemoteTable::EXTERNAL_ENCODING_ICONV, internal_encoding
+      if ::UnixUtils.available?('iconv')
+        local_copy.in_place :iconv, RemoteTable::EXTERNAL_ENCODING_ICONV, internal_encoding
+      else
+        ::Kernel.warn %{[remote_table] iconv not available in your $PATH, not performing transliteration}
+      end
       # now that we've force-transliterated to UTF-8, act as though this is what the user had specified
       @internal_encoding = RemoteTable::EXTERNAL_ENCODING
     end
     
     # No matter what the EOL are SUPPOSED to be, run it through Perl with a regex that will convert all EOLS to \n