Re: Help with Regex (was Re: Switch, Case and wild-cards?)
From my own experience; if you are trying to parse ANY SQL statement that someone might enter, then NO, regex alone is not going to be your solution. If on the other hand you are dealing with a relatively small subset of SQL statements, maybe SELECT, UPDATE, DELETE, then regex would be able to very quickly break these down into table/column names and values, etc etc. Because SQL is so structured and strict (more so say than the 4.0 version of html which is fairly loose in what it allows) it does lend itself to be manipulated with regex. HTH On Sun, Dec 30, 2012 at 3:02 PM, Peter Haworth p...@lcsql.com wrote: Thanks Mark, more good resources. A question in the back of my mind now that I know enough about regexp to be dangerous. Is parsing a language something that can be done with regular expressions? I have a program in which I jumped though all sorts of hoops to parse SQL statements. It works quite well but maintaining it is a pain. It feels like I could use regexps to separate the various clauses of a command, followed by other regexps to parse those clauses depending on type. Pete lcSQL Software http://www.lcsql.com On Sat, Dec 29, 2012 at 7:47 PM, Mark Laffoon mark.laff...@gmail.com wrote: I've always found RegExhibit from http://roger-jolly.nl/software/#regexhibithelpful. Also, for reference material, http://www.regular-expressions.info/ has been of great help. Just my 2 cents. Mark -- I am CDO. This is a lot like OCD, except the letters are in alphabetical order... as they should be. ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Help with Regex (was Re: Switch, Case and wild-cards?)
These would be guaranteed valid SQLite statements so their syntax would be exactly as documented, no errors. SOunds like it might be worthwhile spending a couple of hours with regex as an exercise to do this. Pete lcSQL Software http://www.lcsql.com On Tue, Jan 1, 2013 at 5:10 AM, Kay C Lan lan.kc.macm...@gmail.com wrote: From my own experience; if you are trying to parse ANY SQL statement that someone might enter, then NO, regex alone is not going to be your solution. If on the other hand you are dealing with a relatively small subset of SQL statements, maybe SELECT, UPDATE, DELETE, then regex would be able to very quickly break these down into table/column names and values, etc etc. Because SQL is so structured and strict (more so say than the 4.0 version of html which is fairly loose in what it allows) it does lend itself to be manipulated with regex. HTH On Sun, Dec 30, 2012 at 3:02 PM, Peter Haworth p...@lcsql.com wrote: Thanks Mark, more good resources. A question in the back of my mind now that I know enough about regexp to be dangerous. Is parsing a language something that can be done with regular expressions? I have a program in which I jumped though all sorts of hoops to parse SQL statements. It works quite well but maintaining it is a pain. It feels like I could use regexps to separate the various clauses of a command, followed by other regexps to parse those clauses depending on type. Pete lcSQL Software http://www.lcsql.com On Sat, Dec 29, 2012 at 7:47 PM, Mark Laffoon mark.laff...@gmail.com wrote: I've always found RegExhibit from http://roger-jolly.nl/software/#regexhibithelpful. Also, for reference material, http://www.regular-expressions.info/has been of great help. Just my 2 cents. Mark -- I am CDO. This is a lot like OCD, except the letters are in alphabetical order... as they should be. ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Help with Regex (was Re: Switch, Case and wild-cards?)
Depends on the language. I tried making a Foxpro to Livecode parser once. I encountered situations where there was no good way to accomplish the translation. Also there are commands and functions in each language that have no equivalent in the other, and only another custom or function could accomplish the task. I gave up on it as either impossible, or else impractical. SQL is something that is quite parseable in simpler forms. Parsing complex joins would require a genius far beyond my paltry skills. If you have a good SQL parser that might be something you could make into a plugin. Bob On Dec 29, 2012, at 11:02 PM, Peter Haworth wrote: Thanks Mark, more good resources. A question in the back of my mind now that I know enough about regexp to be dangerous. Is parsing a language something that can be done with regular expressions? I have a program in which I jumped though all sorts of hoops to parse SQL statements. It works quite well but maintaining it is a pain. It feels like I could use regexps to separate the various clauses of a command, followed by other regexps to parse those clauses depending on type. Pete lcSQL Software http://www.lcsql.com On Sat, Dec 29, 2012 at 7:47 PM, Mark Laffoon mark.laff...@gmail.comwrote: I've always found RegExhibit from http://roger-jolly.nl/software/#regexhibithelpful. Also, for reference material, http://www.regular-expressions.info/ has been of great help. Just my 2 cents. Mark -- I am CDO. This is a lot like OCD, except the letters are in alphabetical order... as they should be. ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Help with Regex (was Re: Switch, Case and wild-cards?)
Richmond wrote: Maybe I'm missing something (nothing particularly unusual there), but . . . I don't really get REGEX. And,frankly, why on earth would I, or anyone else for that matter, want to read through some awfully long, wordy and obscure load of b*mf about it? There's nothing regular about regular expressions, and like so many things in computing they seem to have come about through a series of evolutionary steps which may well be characterized as accidents. But it's the cryptic nature of regex that makes it so useful, providing a uniquely compact way of handling a vast range of text parsing in ways that would take many dozens of lines of code to do by any other means. So whether we like regex or not, it's here to stay, useful and ubiquitous enough to be worth the learning curve. That said, being a very generalized subsystem it's often not the fastest in execution speed in spite of being fast to type. In many cases, writing a pull-parser or other offset-based function for a specific need will yield a much faster result than using regex. The downside of not using regex, though, is the time required to write such functions every time you need 'em. For performance-critical operations it's often well worth it, but for less critical routines regex may be the more productive option. -- Richard Gaskin Fourth World LiveCode training and consulting: http://www.fourthworld.com Webzine for LiveCode developers: http://www.LiveCodeJournal.com Follow me on Twitter: http://twitter.com/FourthWorldSys ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Help with Regex (was Re: Switch, Case and wild-cards?)
Peter- Saturday, December 29, 2012, 11:25:09 PM, you wrote: In this book I'm going to subversively teach you parsing, but I'm going to be very practical and straight forward about it. No NFA to DFA conversion. Actually, I think NFA/DFA conversion is where regex gets really interesting, but it's seriously arcane and mind-bogglingly difficult to unravel. -- -Mark Wieder mwie...@ahsoftware.net ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Help with Regex (was Re: Switch, Case and wild-cards?)
I ran into a similar problem doing search and replace in word to clean up text from some data system destined for excel. My solution was often to replace a character or string I wanted to preserve with a placeholder, replace or remove what remains, then restore my placeholders with the original values. In situations like this, work with bigger strings first, and sometimes you need to work it end to beginning, especially if you are using a word or character counter to keep track of where you are. Bob Sneidar IT Manager Calvary Chapel CM Sent from iPhone On Dec 30, 2012, at 2:23, Richmond richmondmathew...@gmail.com wrote: Those of you who don't want to feel faintly queasy had better tune out now. Theoretical / Pedagogical rant follows. Maybe I'm missing something (nothing particularly unusual there), but . . . I don't really get REGEX. And,frankly, why on earth would I, or anyone else for that matter, want to read through some awfully long, wordy and obscure load of b*mf about it? -- And the Wikipedia article: http://en.wikipedia.org/wiki/Regex starts off by describing the blindingly obvious, and then tries to dress the whole thing up in a load of jargon so some fancy academic can draw a fat salary for understanding the blindingly obvious, and/or being capable of thinking in a straight line . . . but, hey, that seems to be a universal problem. -- What I do understand is that one needs a script(s) that looks for patterns in a string and replaces them with other patterns, and that there needs to be a hierarchy of patterns. Consider my problem (apart from all the other ones, that is): I have a line of text in some funny language that goes like this; 1aQngh1swnpQavh now there are the following considerations I have to deal with: 1. Every time I encounter a '1' it has to be shunted after the char it precedes. 2. Every time I encounter a 'Q' it has to be shunted before a char it comes after. 3. 1aQ (this is what is known as the squirrel in the wood-pile (and I'm sorry if I have offended any squirrels). Now a hierarchy of pattern recognition means I have to trap '1aQ' before I trap '1' and 'Q', because if I do things the other way round everything is going to be stewed squirrel to coin a phrase. Obviously there is the possibility that one might have to trap for '1*Q', where '*' may be anything, and that adds a certain frisson to the whole thing. Now, where I come from, that is not called REGEX, that is called either 'logic' or 'getting things done in the right order'. -- So, I sat down at my kitchen table with a pile of chess pieces (I have about 5 identical sets lying around) and lined them up in an order rather like '1aQngh1swnpQavh' and then, with some more as 'my second text field' tried switching the things around - and after about 10 minutes everything made reasonably good sense. And, as most programming seems to consist of getting things in the right order (or, as a friend of mine once remarked getting things in the right ordure) that is about all there is to things. -- Now you might be quite accurate in describing me as: 1. Child-like. 2. Not very good at abstract thought. But when one considers that about 95% of people are pretty much like that, then maybe chess pieces on the kitchen table, and/or plastic cups with beans, are not a bad way to go. Richmond. ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Help with Regex (was Re: Switch, Case and wild-cards?)
On 12/30/2012 10:08 PM, Robert Sneidar wrote: I ran into a similar problem doing search and replace in word to clean up text from some data system destined for excel. My solution was often to replace a character or string I wanted to preserve with a placeholder, replace or remove what remains, then restore my placeholders with the original values. In situations like this, work with bigger strings first, and sometimes you need to work it end to beginning, especially if you are using a word or character counter to keep track of where you are. Bob Sneidar IT Manager Calvary Chapel CM Sent from iPhone Well, I am doing perfectly alright with the pattern searching routine I worked out with Unicode; as long as one works out which pattern to search for first, second and so forth everything is comparatively straightforward. This does not involve placeholders, nor anything else as bizarre. Here's a text: | abcdGfEhijGkElmnopGqrstuEvwxfyz | and I know that I have to move 'E' forwards to before the letter that precedes it, I know that I have to move 'G' to after the letter it follows, and, I know that I have to replace 'f' with ''. Now as 'G' and 'E' sometimes occur as 'doublets', vis 'GkE' I know that they have to swap before worrying about single instances of either 'G' or 'E', and that, as 'f' sometimes occurs in relation to either 'G' or 'E', or both of them, I have to replace 'f' with '' after the other operations, otherwise they won't work. So: 1. swap 'G' and 'E' when they surround one character. 2. move 'E' forwards by 1 when it occurs in isolation, and make sure that precludes those 'E' chars that have already been swapped by rule #1. 3. Ditto for 'G'. 4. replace every instance of 'a' by ''. One of the ways of avoiding falling over the results of rule #1 while implementing #2 and #3 is to encode 'G' and 'E' in rule #1 as different symbols, say '%' and '@' after processing so that rules #2 and #3 don't pick them up (one can always have some rules #5 and #6 to replace '%' and '@' with 'G' and 'E' after running through rules #2, #3 and #4). Now the fun of the whole thing is that I have to do that sort of thing with texts that contain about 20 patterns of the swap X with Y type. Having worked out a way to do this in 2010 (and then being fairly stupid and forgetting the whole thing) with Unicode putting the whole thing into practise has nothing at all to do with the strengths or short-comings of Livecode, but the limitations of the human mind to get itself wrapped around the underlying logic needed to work out the correct sequence of transformations. Richmond. ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Help with Regex (was Re: Switch, Case and wild-cards?)
That is what I meant by placeholders. So long as you are 99.998% sure your placeholders cannot naturally occur in the source string, you're good. Bob Sneidar IT Manager Calvary Chapel CM Sent from iPhone On Dec 30, 2012, at 12:31, Richmond richmondmathew...@gmail.com wrote: One of the ways of avoiding falling over the results of rule #1 while implementing #2 and #3 is to encode 'G' and 'E' in rule #1 as different symbols, say '%' and '@' after processing so that rules #2 and #3 don't pick them up (one can always have some rules #5 and #6 to replace '%' and '@' with 'G' and 'E' after running through rules #2, #3 and #4). ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Help with Regex (was Re: Switch, Case and wild-cards?)
On 12/30/2012 10:44 PM, Robert Sneidar wrote: That is what I meant by placeholders. Aha; well we of little brain need a more explicit explanation :) So long as you are 99.998% sure your placeholders cannot naturally occur in the source string, you're good. Bob Sneidar IT Manager Calvary Chapel CM Sent from iPhone On Dec 30, 2012, at 12:31, Richmond richmondmathew...@gmail.com wrote: One of the ways of avoiding falling over the results of rule #1 while implementing #2 and #3 is to encode 'G' and 'E' in rule #1 as different symbols, say '%' and '@' after processing so that rules #2 and #3 don't pick them up (one can always have some rules #5 and #6 to replace '%' and '@' with 'G' and 'E' after running through rules #2, #3 and #4). ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Help with Regex (was Re: Switch, Case and wild-cards?)
On Sun, Dec 30, 2012 at 12:08 PM, Robert Sneidar slylab...@me.com wrote: I ran into a similar problem doing search and replace in word to clean up text from some data system destined for excel. Also, when you need to do this, open in OpenOffice, which has most of regexp search/replace. -- Richard E. Hawkins, Esq. (702) 508-8462 ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Help with Regex (was Re: Switch, Case and wild-cards?)
Firefox plugin is decent. A tutorial, very basic to start, but excellent and getting more sophisticated as it goes along, here: http://regex.learncodethehardway.org/book/ Recommended, even though it does start out assuming minimal knowledge. Peter -- View this message in context: http://runtime-revolution.278305.n4.nabble.com/Help-with-Regex-was-Re-Switch-Case-and-wild-cards-tp4658429p4658457.html Sent from the Revolution - User mailing list archive at Nabble.com. ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Help with Regex (was Re: Switch, Case and wild-cards?)
Thanks Peter, another weapon to add to my learning arsenal. Pete lcSQL Software http://www.lcsql.com On Sat, Dec 29, 2012 at 12:14 PM, Peter Alcibiades palcibiades-fi...@yahoo.co.uk wrote: Firefox plugin is decent. A tutorial, very basic to start, but excellent and getting more sophisticated as it goes along, here: http://regex.learncodethehardway.org/book/ Recommended, even though it does start out assuming minimal knowledge. Peter -- View this message in context: http://runtime-revolution.278305.n4.nabble.com/Help-with-Regex-was-Re-Switch-Case-and-wild-cards-tp4658429p4658457.html Sent from the Revolution - User mailing list archive at Nabble.com. ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Help with Regex (was Re: Switch, Case and wild-cards?)
I've always found RegExhibit from http://roger-jolly.nl/software/#regexhibithelpful. Also, for reference material, http://www.regular-expressions.info/ has been of great help. Just my 2 cents. Mark -- I am CDO. This is a lot like OCD, except the letters are in alphabetical order... as they should be. ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Help with Regex (was Re: Switch, Case and wild-cards?)
Thanks Mark, more good resources. A question in the back of my mind now that I know enough about regexp to be dangerous. Is parsing a language something that can be done with regular expressions? I have a program in which I jumped though all sorts of hoops to parse SQL statements. It works quite well but maintaining it is a pain. It feels like I could use regexps to separate the various clauses of a command, followed by other regexps to parse those clauses depending on type. Pete lcSQL Software http://www.lcsql.com On Sat, Dec 29, 2012 at 7:47 PM, Mark Laffoon mark.laff...@gmail.comwrote: I've always found RegExhibit from http://roger-jolly.nl/software/#regexhibithelpful. Also, for reference material, http://www.regular-expressions.info/ has been of great help. Just my 2 cents. Mark -- I am CDO. This is a lot like OCD, except the letters are in alphabetical order... as they should be. ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Help with Regex (was Re: Switch, Case and wild-cards?)
I don't know, but this is what the author of the 'learn regex the hard way' book has to say:- /The key to using regular expressions correctly is to know where their usefulness ends and when you need to bust out a lexer. You also need to know where a lexer falls down and when a parser is the right tool. When you use regular expressions to simplify creating lexers that feed into simple parsers you then have a set of tools for cleaning and accurately parsing text without going insane. In this book I'm going to subversively teach you parsing, but I'm going to be very practical and straight forward about it. No NFA to DFA conversion. No crazy explanations of push down finite state automata. Just practical code that gets you introduced to the basics of parsing, understanding the core theory, and then actually using them to get work done./ Peter Haworth wrote A question in the back of my mind now that I know enough about regexp to be dangerous. Is parsing a language something that can be done with regular expressions? I have a program in which I jumped though all sorts of hoops to parse SQL statements. It works quite well but maintaining it is a pain. It feels like I could use regexps to separate the various clauses of a command, followed by other regexps to parse those clauses depending on type -- View this message in context: http://runtime-revolution.278305.n4.nabble.com/Help-with-Regex-was-Re-Switch-Case-and-wild-cards-tp4658429p4658489.html Sent from the Revolution - User mailing list archive at Nabble.com. ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Help with Regex (was Re: Switch, Case and wild-cards?)
The regex builder plugin in LC is pretty handy too and can help you work things out in lc itself. You can also be pretty sure of it works in the builder, it will work in LC (though in all things, YMMV) On Fri, Dec 28, 2012 at 3:07 PM, James Hale ja...@thehales.id.au wrote: Pete asked: Does anyone have any references to using regular expressions, preferable with lots of examples? If you are using a Mac i suggest getting yourself a copy of BBedit or its free sibling TextWrangler. I have never been much for using terminal commands and the like as I always preferred the Mac GUI so when it came to text manipulation I sought out easier tools. Nisus was my first taste of using regex with its token substitutions but when it when in to abeyance for a while I turned to BBedit. It allows the use of grep ( a command line regex tool) in its find and replace dialog and also does find and replace across multiple files. It's manual provides a good introduction to what you can do with regex, it is blindingly fast and a really easily way to try out different expressions. I found it invaluable when I wrote a web-scrapping app to provide a back end to my DVD collection many years ago. I still have times when I need to do a lot of text manipulation and will inevitably turn to BBedit's regex prowess to do the heavy lifting. As for references, there are lots on the web and O'Reilly have a couple of good books. But BBEDIT (or TextWrangler) will provide an easily accessible interface into using regex and trying out different things. James ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Help with Regex (was Re: Switch, Case and wild-cards?)
Thanks James and Mike. I am on a Mac and I think have TextWrangler installed somewhere so I can take a look at that. The plugin is RegEx Builder, right Mike? The video tutorials I mentioned are really good since they are very interactive and use lots of examples. I already know how to validate an email address and an ip address... not that I need to do either of those things but the examples that show how to do it and explain it are really useful. Pete lcSQL Software http://www.lcsql.com On Fri, Dec 28, 2012 at 2:48 PM, Mike Bonner bonnm...@gmail.com wrote: The regex builder plugin in LC is pretty handy too and can help you work things out in lc itself. You can also be pretty sure of it works in the builder, it will work in LC (though in all things, YMMV) On Fri, Dec 28, 2012 at 3:07 PM, James Hale ja...@thehales.id.au wrote: Pete asked: Does anyone have any references to using regular expressions, preferable with lots of examples? If you are using a Mac i suggest getting yourself a copy of BBedit or its free sibling TextWrangler. I have never been much for using terminal commands and the like as I always preferred the Mac GUI so when it came to text manipulation I sought out easier tools. Nisus was my first taste of using regex with its token substitutions but when it when in to abeyance for a while I turned to BBedit. It allows the use of grep ( a command line regex tool) in its find and replace dialog and also does find and replace across multiple files. It's manual provides a good introduction to what you can do with regex, it is blindingly fast and a really easily way to try out different expressions. I found it invaluable when I wrote a web-scrapping app to provide a back end to my DVD collection many years ago. I still have times when I need to do a lot of text manipulation and will inevitably turn to BBedit's regex prowess to do the heavy lifting. As for references, there are lots on the web and O'Reilly have a couple of good books. But BBEDIT (or TextWrangler) will provide an easily accessible interface into using regex and trying out different things. James ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Help with Regex (was Re: Switch, Case and wild-cards?)
Yeah, its RegEx builder. Feed it some text, and start typing in the regex and you get live feedback. It can be quirky but handy. ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
