DZone Snippets: manipulation code

Java: RegEx: Splitting a space-, comma-, and semi-colon separated list

thitiv (Thiti V. Sintopchai) — Sun, 05 Aug 2007 05:28:17 GMT

// Greedy RegEx quantifier used
// X+ = X, one or more times
// [\\s,;]+ = one or more times of either \s , or ;



    String test_data = "hello world, this is a test, ;again";

    _logger.debug("Source: " + test_data);

    

    for (String tag : test_data.split("[\\s,;]+"))

    {

      _logger.debug("Received tag: [" + tag + "]");

    }

Java: RegEx to Remove HTML Tags

thitiv (Thiti V. Sintopchai) — Tue, 15 May 2007 04:19:12 GMT

// Ref: https://jalbum.net/forum/thread.jspa?forumID=7&threadID=971&messageID=6907



String noHTMLString = htmlString.replaceAll("\\<.*?\\>", "");

JavaScript: String Tokenization and Substring

thitiv (Thiti V. Sintopchai) — Thu, 01 Mar 2007 11:01:14 GMT

// Tokenize a comma-separated string
// then recreate the comma-separated list



  var currentTagTokens = currentTags.split( "," );

  var existingTags = "";



  for ( var i = 0; i < currentTagTokens.length; i++ )

  {

    existingTags = existingTags + currentTagTokens[ i ] + ", ";

  }



  // Remove the trailing ", " from existingTags

  existingTags = existingTags.substring( 0, existingTags.length - 3 );

JavaScript String Tokenization

thitiv (Thiti V. Sintopchai) — Fri, 09 Feb 2007 15:50:40 GMT

//
// String Tokenization with JavaScript
// From http://www.thescripts.com/forum/thread91795.html
//



function makeArray( strLongString )

{

  return strLongString.split( "," );

}

image manipulation in linux

nevadalife (nevada) — Sat, 23 Sep 2006 18:19:58 GMT



for file in *.jpg

      do

      cp $file $file.orig

      convert -resize 800x600 $file.orig $file

done

smart plaintext wrapping

MattScilipoti (Matt Scilipoti) — Wed, 13 Sep 2006 19:48:26 GMT

From http://blog.evanweaver.com/articles/2006/09/03/smart-plaintext-wrapping:
>>>
Very often you need to break plaintext at a specific width while retaining readability.



#!/opt/local/bin/ruby



class String



  def wrap(width, hanging_indent = 0, magic_lists = false)

    lines = self.split(/\n/)



    lines.collect! do |line|



      if magic_lists 

        line =~ /^([\s\-\d\.\:]*\s)/

      else 

        line =~ /^([\s]*\s)/

      end



      indent = $1.length + hanging_indent rescue hanging_indent



      buffer = ""

      first = true



      while line.length > 0

        first ? (i, first = 0, false) : i = indent              

        pos = width - i



        if line.length > pos and line[0..pos] =~ /^(.+)\s/

          subline = $1

        else 

          subline = line[0..pos]

        end

        buffer += " " * i + subline + "\n"

        line.tail!(subline.length)

      end

      buffer[0..-2]

    end



    lines.join("\n")



  end



  def tail!(pos)

    self[0..pos] = ""

    strip!

  end



end



if __FILE__ == $0

  File.open(ARGV[0]) do |f|

    puts f.read.wrap(ARGV[1].to_i, ARGV[2].to_i, ARGV[3] == "true")

  end

end

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