January 2004 - Posts

• RegexHelper - a javascript wrapper for regex usage

  This is a bit of a code dump but... I started working on a set of javascript helper modules for using and displaying regular expressions; here is the code for the RegexHelper module, code for the RegexResultsRenderer will come later: ///////////////////////////////////////////////////////////////////////////// Read More... Posted Friday, January 23, 2004 9:14 PM by digory | 9 Comments Filed under: Tools and Sites, Samples

• 3 resources about Text

  ASCII vs ANSI Encoding http://weblogs.asp.net/ahoffman/archive/2004/01/19/60094.aspx Determining the Character Set Used by a Font http://msdn.microsoft.com/library/en-us/dnaskdr/html/askgui12302003.asp?frame=true Rich Text Format (RTF) Specification, Read More... Posted Friday, January 23, 2004 8:02 PM by digory | 1 Comments Filed under: Resources

• RegexLib.com minor site alterations

  Last night I added a couple of new features to the RegexLib.com site: Client-side javascript testing for patterns Contact Us feedback form The regex testing tool can be accessed from anywhere within the site via the "Test" link on both the top and side Read More... Posted Friday, January 23, 2004 8:02 AM by digory | 1 Comments Filed under: RegexLib

• Happy days...

  Wayne has started blogging :-) http://regexadvice.com/blogs/WayneKing/archive/2004/01/12/318.aspx Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it! Read More... Posted Tuesday, January 20, 2004 8:47 AM by digory | 3 Comments Filed under: Blogs

• Mark-up tool - new workspace

  I've created a new workspace to work on and improve the mark-up tool that I wrote about in a recent article for Msdn . I'm hoping to end up with lots of efficiencies in the parsing and tokenizing as well as extracting the part that does the actual conversion Read More... Posted Monday, January 19, 2004 9:27 AM by digory | 0 Comments Filed under: Tools and Sites

• fixing buggy shortcuts with dodgy hacks

  UPDATE: I should add that, the pattern below is a good example of “greedy“ matching. That is, I always want to “slurp“ as much text as possible. Bon Apetite! I while back I decided - somewhat short-sightedly - that I'd make the Read More... Posted Sunday, January 18, 2004 10:57 AM by digory | 0 Comments Filed under: RegexLib, Samples

• Create a regex to strip javascript from Html (PART II)

  I fixed up an issue that I discovered about yesterdays script, that is that the closing marker for an HtmlComment can be written with spaces between the "--" and the ">", refer: http://www.w3.org/TR/REC-html40/intro/sgmltut.html#h-3.2.4 . Another issue Read More... Posted Saturday, January 17, 2004 10:46 PM by digory | 2 Comments Filed under: Samples

• RegexLib.com - thinking about features

  There's 2 major items that are currently sitting on my TODO: list for RegexLib.com but haven't progressed yet because I haven't fully specc'ed them: Improve the Tester tool , probably offer an Advanced mode which would allow the user to see a Tree representation Read More... Posted Saturday, January 17, 2004 8:57 AM by digory | 0 Comments Filed under: RegexLib

• CSV Expression

  Today I was reminded about a cool regex that was posted on the “Early and Adopter” blog last February: ,(?=([^"]*"[^"]*")*(?![^"]*")) Here's the original link to that entry which also has sample usage: http://weblogs.asp.net/prieck/archive/2004/01/16/59457.aspx Read More... Posted Saturday, January 17, 2004 8:46 AM by digory | 0 Comments Filed under: Blogs

• Create a regex to strip javascript from Html

  Well, it's done; the challenge was laid down and accepted so now there's work to be done. I'll start by summarizing the problem: First up, J$ issued a challenge for people to provide Html parsing regex's that could not be broken Then I accepted Then I Read More... Posted Saturday, January 17, 2004 6:57 AM by digory | 4 Comments Filed under: Samples

• You've gotta love a challege :-)

  There's a regex challenge on here: Bring Me Your Regexs! I Will Create HTML To Break Them! -- via kayodeok's Weblog Now, I'm certainly not advocating that regex is the best way to parse Html but... you've gotta love a challenge eh? In all seriousness Read More... Posted Thursday, January 15, 2004 10:09 PM by digory | 4 Comments Filed under: Blogs, Articles

• Five Habits for Successful Regular Expressions

  With a title like that this article was bound to catch my attention :-) Five Habits for Successful Regular Expressions I'm forever being e-mailed by people asking about “the basics” of regex construction... I think that this article is concise Read More... Posted Tuesday, January 13, 2004 7:59 PM by digory | 0 Comments Filed under: Articles

• PDF on Python's Unicode support

  PDF on Python's Unicode support -- via Keith's Weblog Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it! Read More... Posted Monday, January 12, 2004 7:33 PM by digory | 0 Comments Filed under: Resources

• RegexLib : new activity and a plug for the feeds

  Tonight when I arrived home and fired up my aggregator I noticed a couple of nice new patterns submitted by fellow regex afficionado Michael Ash http://www.regexlib.com/REDetails.aspx?regexp_id=524 http://www.regexlib.com/REDetails.aspx?regexp_id=523 Read More... Posted Monday, January 12, 2004 7:31 PM by digory | 0 Comments Filed under: Tools and Sites, RegexLib, Samples

• Some regex related books

  Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it! Read More... Posted Saturday, January 10, 2004 11:51 AM by digory | 0 Comments Filed under: Books

• More regex reading - RegExplanations

  I just received a comment on my last blog entry from John Kemp pointing me toward some further regex readings - thanks John, I actually linked to that article a couple of months back. Mark (^zhurnal) also read it and wrote some follow-up thoughts of his Read More... Posted Saturday, January 10, 2004 7:21 AM by digory | 1 Comments Filed under: Articles

• Regular expressions: Automata theory applied

  Looks like I found me some weekend reading :-) http://www.zefhemel.com/559.php#story Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it! Read More... Posted Friday, January 09, 2004 5:52 PM by digory | 2 Comments Filed under: Articles

• Fun with Substitutions

  An e-mail today on the regex list enquired about the .NET equivalent of javascript's RegExp.rightContext property. http://msdn.microsoft.com/library/en-us/script56/html/js56jsprorightcontext.asp?frame=true As per that page, the rightContext property is Read More... Posted Wednesday, January 07, 2004 9:16 PM by digory | 0 Comments Filed under: Samples

• 4 regex tools

  (click on the images to visit each site)... Visual REGEXP Blurb: Tired of debugging your regular expressions ? Do you want to quickly build efficient regexps ? Visual REGEXP is for you ! This software will let you design your regexps by letting you type Read More... Posted Tuesday, January 06, 2004 8:33 PM by digory | 0 Comments Filed under: Tools and Sites

• The perils of being too greedy

  I blogged earlier about a posting that I'd read about an unexpected regex matching behaviour . To summarize the problem, consider the following string and 2 patterns (that I'll call good pattern and nasty pattern): The evil string declaration: string Read More... Posted Monday, January 05, 2004 7:07 PM by digory | 2 Comments Filed under: Articles

• Reports of a .NET Regex perf bug

  Stumbled across this posting today: http://weblogs.asp.net/ptorr/archive/2004/01/05/47580.aspx Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it! Read More... Posted Monday, January 05, 2004 4:40 PM by digory | 0 Comments Filed under: Blogs

• Regex Power articles

  I came across a couple of interesting, per-centric, regex articles today: http://www.perl.com/pub/a/2003/06/06/regexps.html http://www.perl.com/pub/a/2003/07/01/regexps.html?page=1 The first article runs through some of the "basics" and covers the semantics Read More... Posted Monday, January 05, 2004 4:29 PM by digory | 0 Comments Filed under: Articles

• regexadvice.com/blogs is now on version 0.95 of .Text

  Thanks to Jeff Julian who upgraded .Text to version 0.95 today. If you notice any errors please let me know :-) Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it! Read More... Posted Monday, January 05, 2004 10:56 AM by digory | 0 Comments Filed under: Blogs

• Rotor Source

  Here's a link to the (syntax colored) rotor source for the classes found within the System.Text.RegularExpressions namespace: http://www.123aspx.com/rotor/default.aspx?n=System.Text.RegularExpressions Share this post: email it! | bookmark it! | digg it! Read More... Posted Sunday, January 04, 2004 8:48 PM by digory | 0 Comments Filed under: Tools and Sites, Samples

• Match WinXP Filepaths

  I've re-written my filepath pattern on RegexLib.com using a different idiom. The pattern had previously read as: ^[a-zA-Z]\:\\([\.\+\-\@\w\d]+\\)*[\.\+\-\@\w\d]+\.\w+ As you can see, my logic was based on using a character class to determine which characters Read More... Posted Thursday, January 01, 2004 9:20 AM by digory | 5 Comments Filed under: Samples