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  • C# Regex stops after first line matched

    - by JD Guzman
    Ok so I have a regex and I need it to find matches in a multiline string. This is the string I am using: Device Identifier: disk0 Device Node: /dev/disk0 Part of Whole: disk0 Device / Media Name: OCZ-VERTEX2 Media Volume Name: Not applicable (no file system) Mounted: Not applicable (no file system) File System: None Content (IOContent): GUID_partition_scheme OS Can Be Installed: No Media Type: Generic Protocol: SATA SMART Status: Verified Total Size: 240.1 GB (240057409536 Bytes) (exactly 468862128 512-Byte-Blocks) Volume Free Space: Not applicable (no file system) Device Block Size: 512 Bytes Read-Only Media: No Read-Only Volume: Not applicable (no file system) Ejectable: No Whole: Yes Internal: Yes Solid State: Yes OS 9 Drivers: No Low Level Format: Not supported Basically I need to separate each line into two groups with the colon as the separator. The regex I am using is: @"([A-Za-z0-9\(\) \-\/]+):([A-Za-z0-9\(\) \-\/]+).*" It does work but only picks up the first line and separates it into the two groups like I want but it stops at that point. I have tried the Multiline option but it doesn't make any difference. I must admit I am new to the regex world. Any help is appreciated.

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  • PCRE/PHP regex not matching last "item"

    - by superbarney
    Here's a regex that I've cobbled up: /(.*={76}\s)?\s*(.*?)\s\-\-\s(\d{2}\/\d{2}\-\d{2}\s\d{2}:\d{2})\s\s(.*?)\s(http:\/\/service.*?)\s(\-{76})/is and here's the text I will be parsing: http://p.linode.com/7015 and here's the replacement for the matched text: <item>\n\t<title>$2</title>\n\t<pubDate>$pubDate</pubDate>\n\t<description>$4</description>\n\t<link>$5</link>\n</item>\n\n I have almost come up with a regex needed to parse a block of text into RSS 2.0 XML markup. I've tested it with RegExr and RegexBuddy and it works perfectly except for the last "item" where there is no line breaks after the link (Line 269). In short, the problem is the "iProperty" article in the text is not matched. Any regex gurus willing to help me troubleshoot what's wrong? I've tried /(.*={76}\s)?\s*(.*?)\s\-\-\s(\d{2}\/\d{2}\-\d{2}\s\d{2}:\d{2})\s\s(.*?)\s(http:\/\/service.*?)\s*(\-{76})/is Here's the output that I get: http://p.linode.com/7016 but that didn't work as I expected (i.e. a newline would be optional). Thanks!

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  • Regex to ensure group match doesn't end with a specific character

    - by AJ
    I'm having trouble coming up with a regular expression to match a particular case. I have a list of tv shows in about 4 formats: Name.Of.Show.S01E01 Name.Of.Show.0101 Name.Of.Show.01x01 Name.Of.Show.101 What I want to match is the show name. My main problem is that my regex matches the name of the show with a preceding '.'. My regex is the following: "^([0-9a-zA-Z\.]+)(S[0-9]{2}E[0-9]{2}|[0-9]{4}|[0-9]{2}x[0-9]{2}|[0-9]{3})" Some Examples: >>> import re >>> SHOW_INFO = re.compile("^([0-9a-zA-Z\.]+)(S[0-9]{2}E[0-9]{2}|[0-9]{4}|[0-9]{2}x[0-9]{2}|[0-9]{3})") >>> match = SHOW_INFO.match("Name.Of.Show.S01E01") >>> match.groups() ('Name.Of.Show.', 'S01E01') >>> match = SHOW_INFO.match("Name.Of.Show.0101") >>> match.groups() ('Name.Of.Show.0', '101') >>> match = SHOW_INFO.match("Name.Of.Show.01x01") >>> match.groups() ('Name.Of.Show.', '01x01') >>> match = SHOW_INFO.match("Name.Of.Show.101") >>> match.groups() ('Name.Of.Show.', '101') So the question is how do I avoid the first group ending with a period? I realize I could simply do: var.strip(".") However, that doesn't handle the case of "Name.Of.Show.0101". Is there a way I could improve the regex to handle that case better? Thanks in advance.

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  • UNIX-style RegExp Replace running extremely slowly under windows. Help? EDIT: Negative lookahead ass

    - by John Sullivan
    I'm trying to run a unix regEXP on every log file in a 1.12 GB directory, then replace the matched pattern with ''. Test run on a 4 meg file is took about 10 minutes, but worked. Obviously something is murdering performance by several orders of magnitude. Find: ^(?!.*155[0-2][0-9]{4}\s.*).*$ -- NOTE: match any line NOT starting 155[0-2]NNNN where in is a number 0-9. Replace with: ''. Is there some justifiable reason for my regExp to take this long to replace matching text, or is the program I am using (this is windows / a program called "grepWin") most likely poorly optimized? Thanks. UPDATE: I am noticing that searching for ^(155[0-2]).$ takes ~7 seconds in a 5.6 MB file with 77 matches. Adding the Negative Lookahead Assertion, ?=, so that the regExp becomes ^(?!155[0-2]).$ is causing it to take at least 5-10 minutes; granted, there will be thousands and thousands of matches. Should the negative lookahead assertion be extremely detrimental to performance, and/or a large quantity of matches?

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  • UNIX-style RegExp Replace running extremely slowly under windows. Help?

    - by John Sullivan
    I'm trying to run a unix regEXP on every log file in a 1.12 GB directory, then replace the matched pattern with ''. Test run on a 4 meg file is took about 10 minutes, but worked. Obviously something is murdering performance by several orders of magnitude. Find: ^(?!.*155[0-2][0-9]{4}\s.*).*$ -- NOTE: match any line NOT starting 152[0-2]NNNN where in is a number 0-9. Replace with: ''. Is there some justifiable reason for my regExp to take this long to replace matching text, or is the program I am using (this is windows / a program called "grepWin") most likely poorly optimized? Thanks.

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  • Regular expression, how to find all tags A which do not contain tag IMG inside it?

    - by Kirzilla
    Hello, Let's suppose that we have such HTML code. We need to get all <a href=""></a> tags which DO NOT contain img tag inside it. <a href="http://domain1.com"><span>Here is link</span></a> <a href="http://domain2.com" title="">Hello</a> <a href="http://domain3.com" title=""><img src="" /></a> <a href="http://domain4" title=""> I'm the image <img src="" /> yeah</a> I'm using this regular expression to find out all links preg_match_all("!<a[^>]+href=\"?'?([^ \"'>]+)\"?'?[^>]*>(.*?)</a>!is", $content, $out); I can modify it preg_match_all("!<a[^>]+href=\"?'?([^ \"'>]+)\"?'?[^>]*>([^<>]+?)</a>!is", $content, $out); But how can I tell to exclude results containing <img substring inside of <a href=""></a>? Thank you

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  • what is regular expression not generated over {a,b}?

    - by Loop
    Hello all, I am really stuck with these 2 question for over 2 days now. trying to figure out what the question means.... my tutor is out of town too.... write a regular expression for the only strings that are not generated over {a,b} by the expression: (a+b)*a(a+b)*. explain your reasoning. and i tried the second question, do you think is there any better answer than this one? what is regular expression of set of string that contain an odd number of a's or exactly two b's................(a((a|b)(a|b))*|bb).... coz i know to represent any odd length of a's, the RE is a((a|b)(a|b))*

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  • Intelligencia URL ReWriter mapping with regex

    - by alex
    I am using the Intelligencia URL rewriter in my asp.net web application. I use the web.config mappings I'm trying to map the following url: www.mydomain.com/product-deals/manufacturer-model_PRODUCTId.aspx To: www.mydomain.com/ProductInfo.aspx?productID=xxx obviously in the above example, xxx is replaced from the "productId" from the "friendly" url. In my web.config, I've got so far: <rewrite url="~/contract-deals/([\w-_]+)/_(.+).aspx" to="~/ProductInfo.aspx?productId=$1"/> This isn't working however. I need the correct regex to use for my requirements (regex really isn't my strong point!!)

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  • Django URL regex question

    - by shawnjan
    Hey all! I had a quick question about Django URL configuration, and I guess REGEX as well. I have a small configuration application that takes in environments and artifacts in the following way: url(r'^env/(?P<env>\w+)/artifact/(?P<artifact>\w+)/$', 'config.views.ipview', name="bothlist"), Now, this works fine, but what I would like to do is have it be able to have additional parameters that are optional, such as a verbose mode or no formating mode. I know how to do this just fine in the views, but I can't wrap my head around the regex. the call would be something like GET /env/<env>/artifact/<artifact>/<opt:verbose>/<opt:noformat> Any help would be appreciated, thanks! -Shawn

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  • Trying to parse links in an HTML directory listing using Java regex

    - by DiskCrasher
    Ok I know everyone is going to tell me not to use RegEx for parsing HTML, but I'm programming on Android and don't have ready access to an HTML parser (that I'm aware of). Besides, this is server generated HTML which should be more consistent than user-generated HTML. The regex looks like this: Pattern patternMP3 = Pattern.compile( "<A HREF=\"[^\"]+.+\\.mp3</A>", Pattern.CASE_INSENSITIVE | Pattern.UNICODE_CASE); Matcher matcherMP3 = patternMP3.matcher(HTML); while (matcherMP3.find()) { ... } The input HTML is all on one line, which is causing the problem. When the HTML is on separate lines this pattern works. Any suggestions?

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  • Regex: replace inner string

    - by AllenG
    I'm working with X12 EDI Files (Specifialy 835s for those of you in Health Care), and I have a particular vendor who's using a non-HIPAA compliant version (3090, I think). The problem is that in a particular segment (PLB- again, for those who care) they're sending a code which is no longer supported by the HIPAA Standard. I need to locate the specific code, and update it with a corrected code. I think a Regex would be best for this, but I'm still very new to Regex, and I'm not sure where to begin. My current methodology is to turn the file into an array of strings, find the array that starts with "PLB", break that into an array of strings, find the code, and change it. As you can guess, that's very verbose code for something which should be (I'd think) fairly simple. Here's a sample of what I'm looking for: ~PLB|1902841224|20100228|49KC15X078001104|.08~ And here's what I want to change it to: ~PLB|1902841224|20100228|CSKC15X078001104|.08~ Any suggestions?

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  • R regex to validate user input is correct.

    - by John
    I'm trying to practice writing better code, so I wanted to validate my input sequence with regex to make sure that the first thing I get is a single letter A to H only, and the second is a number 1 to 12 only. I'm new to regex and not sure what the expression should look like. I'm also not sure what type of error R would throw if this is invalidated? In Perl it would be something like this I think: =~ m/([A-M]?))/) Here is what I have so far for R: input_string = "A1" first_well_row = unlist(strsplit(input_string, ""))[1] # get the letter out first_well_col = unlist(strsplit(input_string, ""))[2] # get the number out

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  • Basic Boost Regex question

    - by shuttle87
    I'm trying to write some c++ code that tests if a string is in a particular format. In this program there is a height followed by some decimal numbers: for example "height 123.45" or "height 12" would return true but "SomeOtherString 123.45" would return false. My first attempt at this was to write the following: string action; cin >> action; boost::regex EXPR( "^height \\d*(\\.\\d{1,2})?$/" ) ;//height format regex bool height_format_matches = boost::regex_match( action, EXPR ) ; if(height_format_matches==true){ \\do some stuff } However height_format_matches never seemed to be true. Any help is greatly appreciated!

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  • boost's regex won't compile

    - by myeviltacos
    Hi everyone. I am using boost 1.45.0 on Ubuntu with Code::Blocks as my IDE, and I can't get basic_regex.hpp to compile. I'm pretty sure I set up boost correctly, because I can compile programs using boost::format without any errors. But I'm getting this annoying error, and I don't know how to get rid of it. The code that is provoking the error: boost::regex e("\"http:\\\\/\\\\/localhostr.com\\\\/files\\\\/.+?\""); Compiler output (GCC): obj/Debug/main.o In function `boost::basic_regex<char, boost::regex_traits<char, boost::cpp_regex_traits<char> > >::assign(char const*, char const*, unsigned int)' /home/neal/Documents/boost_1_45_0/boost/regex/v4/basic_regex.hpp|379| undefined reference to `boost::basic_regex<char, boost::regex_traits<char, boost::cpp_regex_traits<char> > >::do_assign(char const*, char const*, unsigned int)'| ||=== Build finished: 1 errors, 0 warnings ===| Did I miss a step when setting up boost, or should I downgrade to another version of boost?

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  • Regex - find and replace complete string occurrences only (not partial matches)

    - by vittore
    I'm not very good at regex but maybe there's a simple way to achieve this task. I'm given a string like "bla @a bla @a1 bla" I'm also given pairs like {"a", "a2"} , {"a1", "a13"}, and I need to replace @a with @a2 for the first pair, and @a1 with @a13 for the second one. The problem is when i use String.Replace and look for @a, it also replaces @a1 but it should not. I need it to completely match @a and avoid partially matching it in other places. Note: the given string could also be brackets, commas, dots and so on. However, pairs will always be [a-z]*[0-9]+ Help me with regex replace, please. Cheers

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  • Poorly performing regex

    - by Kieron
    I've a really poorly performing piece of regex, currently it makes Firefox, Chrome and IE hang for a period of time. Here's the reg-ex: ^([a-zA-Z0-9]+[/]?)+[a-zA-Z0-9]+$ It's kind of a url matcher, but should only match the requested path (not starting with or ending with a slash). Valid examples: Segment Segment/Segment segment/segment/Segment (etc) Invalid examples: /Segment Segment/ Segment/Segment/ Using the regex above over all three browsers and using two or more slashes causes the browsers to hang. It's obviously a poorly formed reg-ex, but can anyone help build a better one? Thanks,

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  • regex search a mysql text column

    - by Ian
    Okay, I thought my head hurt with regular regex, but I can't seem to find what I'm looking for with regexp in mysql. I'm trying to look for situations in news articles where a Textile-formatted url has not ended with a slash so: "Catherine Zeta-Jones":/cr/catherinezeta-jones/ visited stack overflow is ok but "Catherine Zeta-Jones":/cr/catherinezeta-jones visited stack overflow is not. [just used Catherine as an example because I'm assuming an alpha search wouldn't catch the hyphen] One of these days I'll have to do that goat sacrifice so I can gain the proper knowledge of regex. Thanks everyone!

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  • perl regex groups

    - by Aaron Moodie
    I've currenly trying to pull out dates from a file and feed them directly into an array. My regex is working, but I have 6 groups in it, all of which are being added to the array, when I only want the first one. @dates = (@dates, ($line =~ /((0[1-9]|[12][0-9]|3[01])(\/|\-)(0[1-9]|1[0-2])(\/|\-)([0-9][0-9][0-9][0-9]|[0-9][0-9]))/g )); is there a simple way to grab the $1 group of a perl regex? my output is looking like this: 13/04/2009, 13, /, 04, /, 2009, 14-12-09, 14, -, 12, -, 09

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  • PHP DateTime Regex

    - by CogitoErgoSum
    Hey, long story short I have inherited some terrible code. As a result a string comparison is buggy when comparing dates due to the format of the date. I am trying to convert the date to a valid DateFormat syntax so I can run a proper comparison. These are some samples of the current format: 12/01/10 at 8:00PM 12/31/10 at 12:00PM 12/10/09 at 5:00AM and so forth. I'd like to convert this to a YYYYMMDDHHMM format i.e 201012012000 for comparison purposes. If anyone can give me a quick regex snippet to do this that'd be appreciated as right now i'm hitting a brick wall for a regex. I can do it by exploding the string over several times etc but I'd rather do it in a more efficient manner. Thanks!

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  • How can I customise Zend_Form regex error messages?

    - by Matt
    I have the following code: $postcode = $form-createElement('text', 'postcode'); $postcode-setLabel('Post code:'); $postcode-addValidator('regex', false, array('/^[a-z]{1,3}[0-9]{1,3} ?[0-9]{1,3}[a-z]{1,3}$/i')); $postcode-addFilters(array('StringToUpper')); $postcode-setRequired(true); It creates an input field in a form and sets a regex validation rule and works just fine. The problem is that the error message it displays when a user enters an invalid postcode is this: 'POSTCODE' does not match against pattern '/^[a-z]{1,3}[0-9]{1,3} ?[0-9]{1,3}[a-z]{1,3}$/i' (where input was POSTCODE) How can I change this message to be a little more friendly?

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  • regex to filter all but whitelisted characters from a multi-language string

    - by jeroen
    I am trying to cleanup a string coming from a search box on a multi-language site. Normally I would use a regex like: $allowed = "-+?!,.;:\w\s"; $txt_search = preg_replace("/[^" . $allowed . "]?(.*?)[^" . $allowed . "]?/iu", "$1", $_GET['txt_search']); and that works fine for English texts. However, now I need to do the same when the texts entered can be in any language (Russian now, Chinese in the future). How can I clean up the string while preserving "normal texts" in the original language? I though about switching to a blacklist (although I´d rather not...) but at this moment the regex just completely destroys all original input.

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