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  • regular expression help

    - by JPro
    I always get confused using regular expressions. Can anyone please suggest me a tutorial? I need help with checking for a string which, cannot contain any wild characters except colon, comma, full stop. It will be better to replace these if found. Any help? Thanks.

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  • What does this regex expression do?

    - by Ranjeet
    Hi All, I am looking after fixing a bug and there I find this expression:- directoryPath = Regex.Replace(directoryPath, "[^\\w\\.@-]", ""); but as a result of the expression all the high ascii characters in directory path are messed up, I am not good at regex and dont know about it but for now I have to fix the issue . Can someone please explain me what this regular expression does?

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  • jquery autocomplete

    - by richzilla
    Does anyone know if theres a jquery autocomplete library that works similar to the one here: http://www.thetrainline.com (try and select a station to see what i mean) The one on here is a prototype library. Basically all the ones ive found will only match characters if they appear at the beginning of a string, for example, if i typed 'ear' it would not match the word 'hear'. However this one seems to do that. If anyone has any ideas id be very grateful.

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  • jquery ajax encoding problem!

    - by teMkaa
    hi, i send ajax requests with jquery, and i have a function: $('input').ajaxSuccess(function(e, xhr, settings) { console.log(xhr.responseText); }); Ajax response ara russian letters in utf-8, all server (apache, php) and files are in utf-8 but response text is something like this: \u0421\u043b\u0438\u0448\u043a\u043e\u043c \u043c\u0430\u043b\u043e \u0431\u0443\u043a\u0432! how could i decode this characters to normal words? Thanks for help!

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  • Read variable-length records from a buffer - weird memory issues

    - by bsg
    Hi, I'm trying to implement an i/o intensive quicksort (C++ qsort) on a very large dataset. In the interests of speed, I'd like to read in a chunk of data at a time into a buffer and then use qsort to sort it inside the buffer. (I am currently working with text files but would like to move to binary soon.) However, my data is composed of variable-length records, and qsort needs to be told the length of the record in order to sort. Is there any way to standardize this? The only thing I could think of was rather convoluted: my program currently reads from the buffer until it hits a linefeed character ('10' in ascii), transferring each character over to another array. When it finds a linefeed (the delimiter in the input file), it fills the number of spaces remaining in the buffer for that record (record size is set to 30) with null characters. This way, I should end up with a buffer full of fixed-size records to give qsort. I know there are several problems with my approach, one being that it's just clumsy, another that the record size might conceivably be larger than 30, but is generally much less. Is there a better way of doing this? As well, my current code doesn't even work. When I debug it, it seems to be transferring characters from one buffer to the other, but when I try to print out the buffer, it contains only the first record. Here is my code: FILE *fp; unsigned char *buff; unsigned char *realbuff; FILE *inputFiles[NUM_INPUT_FILES]; buff = (unsigned char *) malloc(2048); realbuff = (unsigned char *) malloc(NUM_RECORDS * RECORD_SIZE); fp = fopen("postings0.txt", "r"); if(fp) { fread(buff, 1, 2048, fp); /*for(int i=0; i <30; i++) cout << buff[i] <<endl;*/ int y=0; int recordcounter = 0; //cout << buff; for(int i=0;i <100; i++) { if(buff[i] != char(10)) { realbuff[y] = buff[i]; y++; recordcounter++; } else { if(recordcounter < RECORD_SIZE) for(int j=recordcounter; j < RECORD_SIZE;j++) { realbuff[y] = char(0); y++; } recordcounter = 0; } } cout << realbuff <<endl; cout << buff; } else cout << "sorry"; Thank you very much, bsg

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  • printf and formatting rules

    - by Stringer Bell
    I'd like to know if all formatting rules of printf functions currently work (or are implemented) in F# ? For instance, if I want to align arguments on 9 characters (padding with spaces or 0), I would use: printfn "%9A %9A" arg1 arg2 //don't seem to work Thanks!

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  • How to display arabic in Javascript?

    - by vishnu
    Hi Guys, I am using utf-8 in my jsp page. I have set the page pageEncoding="UTF-8" contentType="text/html;" <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> But when i try to alert a UTF-8 value then its coming as same utf-8 characters.

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  • Java equivalent of C# @

    - by Simon Rigby
    Hi all, Quick question. Is there an equivalent of @ as applied to strings in Java: For example I can do @"c:\afolder\afile" in C# and have it ignore the escape characters when processing instead of having to do "c:\afolder\aFile". Is there a Java equivalent? hmmm: stackoverflow is escaping on me .. lol. The second example should read: c:(double-backslash)afolder(double-backslash)aFile

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  • Is there a generic class to write structured Text Files?

    - by Burnsys
    I have several projects that need to write structured Textfiles, some with fixed size fields, other delimited by characters. Is there a .net class that could be used for that? I know there is a "Microsoft.VisualBasic.FileIO.TextFieldParser" that is useful for reading textfiles, i am actually searching for a ""Microsoft.VisualBasic.FileIO.TextFieldWriter" Related: http://stackoverflow.com/questions/34182/reading-text-files-using-net

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  • How to find error in TCL code

    - by Adi
    Hi all, I am learning TCL and wanted to know how can I find out errors in my code. I mean what line no is error happening or how can I debug it. Following is the code which I am trying : proc ldelete {list value}{ set ix [lsearch -exact $list $value] if{$ix >=0}{ return [lreplace $list $ix $ix] } else { return $list } } Following is the error i am getting : extra characters after close-brace I will appreciate the help. Thanks aditya

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  • Given a trace of packets, how would you group them into flows?

    - by zxcvbnm
    I've tried it these ways so far: 1) Make a hash with the source IP/port and destination IP/port as keys. Each position in the hash is a list of packets. The hash is then saved in a file, with each flow separated by some special characters/line. Problem: Not enough memory for large traces. 2) Make a hash with the same key as above, but only keep in memory the file handles. Each packet is then put into the hash[key] that points to the right file. Problems: Too many flows/files (~200k) and it might run out of memory as well. 3) Hash the source IP/port and destination IP/port, then put the info inside a file. The difference between 2 and 3 is that here the files are opened and closed for each operation, so I don't have to worry about running out of memory because I opened too many at the same time. Problems: WAY too slow, same number of files as 2 so also impractical. 4) Make a hash of the source IP/port pairs and then iterate over the whole trace for each flow. Take the packets that are part of that flow and place them into the output file. Problem: Suppose I have a 60 MB trace that has 200k flows. This way, I would process, say, a 60 MB file 200k times. Maybe removing the packets as I iterate would make it not so painful, but so far I'm not sure this would be a good solution. 5) Split them by IP source/destination and then create a single file for each one, separating the flows by special characters. Still too many files (+50k). Right now I'm using Ruby to do it, which might've been a bad idea, I guess. Currently I've filtered the traces with tshark so that they only have relevant info, so I can't really make them any smaller. I thought about loading everything in memory as described in 1) using C#/Java/C++, but I was wondering if there wouldn't be a better approach here, especially since I might also run out of memory later on even with a more efficient language if I have to use larger traces. In summary, the problem I'm facing is that I either have too many files or that I run out of memory. I've also tried searching for some tool to filter the info, but I don't think there is one. The ones I've found only return some statistics and wouldn't scan for every flow as I need.

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  • Exact match in regex character sets

    - by Dominik
    Hi all Consider the following string '35=_-235-b-35=35-35=2-135=a-35=123-235=2-35=a-53=1-53=a-553=b' I'd like to extract everything that matches 35= followed by 1 or 2 characters. What I came up with is the following regex \d[35]=[A-Za-z0-9]{1,2} The problem is the character set [35] matches both 35= and 53=. How can I achieve an exact match for a character set? Any suggestions, or different approaches are very much appreciated!

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  • Want to show <embed> and <object> tags from YUI editor as a text rather then a video.

    - by user208678
    I am using YUI rich text editor on my website (php/mysql), so that a user may enter textual matter/articles through it. But if a user copies and paste some embed code in the textarea, from any video sites like youtube, it should get saved as a text block and not as a playing video when showing the text content on the browser. Now YUI automatically converts the characters into html entities which ever is needed. Please note that if I put a new line in the yui editor (by pressing "Enter" key), it will be converted into a "<br>" tag in the background and this will not get html entity encoded when passing the value to my backend PHP script. But If I copy and paste any embed tag or for that reason any valid html tags in the textarea, it will be html entity encoded by YUI. Now to support UTF-8 characters, I am using a function (DBVarConv) in my php script before saving it into my database. The code for the function is given below function DBVarConv($var,$isEncoded = false) { if($isEncoded) return addslashes(htmlentities($var, ENT_QUOTES, 'UTF-8', false)); else return htmlentities ($var, ENT_QUOTES, 'UTF-8', false); } $myeditorData = DBVarConv($myeditorData, true); // Save $myeditorData in database. While showing the data in the browser, I am using another function called "smart_html_entity_decode". The code is given below. function smart_html_entity_decode($text, $isAddslashesUsed = false) { if($isAddslashesUsed) $tmp = stripslashes(html_entity_decode($text, ENT_QUOTES, 'UTF-8')); else $tmp = html_entity_decode($text, ENT_QUOTES, 'UTF-8'); if ($tmp == $text) return $tmp; return smart_html_entity_decode($tmp, $isAddslashesUsed); } // Get $myData from database $myData=smart_html_entity_decode($myData, true); echo $myData; The problem is that in doing so, it is also decoding the embed and object tags from their html encoded entities and as a result my obejct tags are shown as a video and not as a simple text. Try using the text editor at tumblr.com. If you paste an embed code in the editor, it will be shown as a text block not as a video. I am trying to build the same functionality on my website with UTF-8 support. Any help will be highly appreciated.

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  • Java encryption : with method can get me a shorter message ?

    - by Frank
    I don't know too much about encryption, I just want to ask, which method can get me the shortest result message ? For instance, the message looks like this : "This is the secret input message", I wonder if the encrypted message can be shorter then the above 32 characters long ? Maybe something like "dfkfjkvf12". Frank

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  • How to generate a mixed-case hash in Python?

    - by pyrony
    I am having a hard time figuring out a reasonable way to generate a mixed-case hash in Python. I want to generate something like: aZeEe9E Right now I'm using MD5, which doesn't generate case-sensitive hashes. What is a good way to generate a hash value consisting of upper- and lower- case characters + numbers?

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  • Rails validates_format_of

    - by squids
    Hi, I want to use validates_format_of to validate a comma separated string with only letters (small and caps), and numbers. So. example1, example2, 22example44, ex24 not: ^&*, < , asfasfsdafas<#%$# Basically I want to have users enter comma separated words(incl numbers) without special characters. I'll use it to validate tags from acts_as_taggable_on. (i don't want to be a valid tag for example. Thanks in advance.

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