Regular expressions are a declarative language, mainly used for pattern matching within strings. Please include a tag specifying the programming language you are using, together with this tag.

learn more… | top users | synonyms

10
votes
3answers
185 views

Empty Line delimiter, single line output

I'm used to only processing, at most, one line of a file at a time. This is my first time changing the delimiter, and the objective here is to take a file containing lines such as: ...
1
vote
0answers
19 views

Efficient Strip Special Characters

I have a private function in PHP that takes a given URL string and just leave the Alpha or numeric and certain punctuation left. I need the stripping of string due to having it match against ...
3
votes
0answers
54 views

Efficient JavaScript/jQuery typewriter effect that handles HTML5, entities, and text

How should this code be improved? For instance: How could it be shorter, clearer, deal with memory better, use a plugin/library, better prepared for web input? I can break up and clarify the regex ...
2
votes
0answers
28 views

Search/sort/create functionality, implements bubblesort and sequential search

I've moved my main() to the bottom of the code block in order to fit it all in one class for this submission. If there is a better way to do it? ...
2
votes
2answers
123 views

Vowels in a string, patterns

Checking if all five vowels are present in a string. ...
1
vote
1answer
41 views

Find free username based on schema

Hopefully this is not too complicated. I have this code that will generate a username based on the pre-configured schema the admin types in. The fields they can use are: ...
1
vote
2answers
27 views

Repeatedly fetching a URL until the response contains “state: INIT”

I am working on a project in which I need to make a URL call to one of my servers from a bash shell script. http://hostname.domain.com:8080/beat After hitting the above URL, I will be getting ...
4
votes
2answers
84 views

Press any login button on any site

I'm working on a script that will be able to press the login button on any site for an app I'm working on. I have it working (still a few edge cases to work out such as multiple submit buttons and ...
1
vote
1answer
42 views

A simple Ruby EmailAddress class

I wrote this short, plain Ruby lib to handle email address validation inside and outside of Rails applications, and I would like to know what you think. ...
5
votes
1answer
45 views

Regex to parse URIs for their correctness according to RFC 3986

I recently came to write a regex to parse URIs. Now I wonder, did I miss something? Did I make a mistake or could I have written it cleaner? That's why I'm here. In order to write the regex, I took ...
2
votes
1answer
35 views

SMS relay --> MySQL database

The main purpose of my program is to extract GPS information from text messages sent to several GSM modems send from various GPS tracking devices. The main flow of my program loops in three steps: ...
4
votes
1answer
53 views

Multiplying Lists

Challenge: Given 2 lists of positive integers. Write a program which multiplies corresponding elements in these lists Specifications: Your program should accept as its first argument a ...
1
vote
2answers
33 views

Redirecting all pages under a certain directory to a single file

I want to redirect all pages under a certain directory to a single file, like so: /dir/a/dir/new ...
0
votes
0answers
19 views

Matching characters in different languages [migrated]

Is this a right way to check for characters (both English and non English characters like umlauts in German and others)? ...
5
votes
3answers
145 views

Optimize huge text file search

I have several huge 100MB text files that I need to scan through to pick out certain frame numbers which relate to a specific log packet of interest. My plan was to scan for these frame numbers and ...
2
votes
2answers
54 views

Pulling thread data from Invision power board from an external java application

What I am planning on doing is pulling the first post of my news section, this was made for V bulletin and now I need to add it for IPb. ...
3
votes
3answers
168 views

Inserting persons in file into SQLite

I've just started working with SQLite in C# to test various features of an application. In building my first SQLite example I wanted to insert a large .csv into a table (Person) with two columns, A ...
13
votes
1answer
487 views

Capitalize the first character of all words (even when following a '-')

I got it working, all variations are displayed Sint-Anna as should be, but I wonder, is there a simpler way to this, since it looks very cluttered? ...
5
votes
1answer
114 views

Regex for matching a US phone number

I have written my first regex: ...
1
vote
1answer
59 views

An easier way to test a valid username

I have the following requirement for valid usernames: Only alphanumeric characters and - Must not start with a - I wrote this regex (on Rubular): ...
-3
votes
1answer
41 views

Regex for allowing only alphanumerical characters [closed]

This is my first regex: ^[a-zA-Z0-9][a-zA-Z0-9\/]*[\/]$ I want to: Only match alphanumeric at the beginning The last character must be a "/" Only alphanumeric ...
1
vote
2answers
47 views

Regex to Match Email address

I have the below regex to match email address with atleast one @ and one . ...
3
votes
1answer
60 views

Regex for curly quotes and apostrophes

After years of fear and procrastination I decided to learn regular expressions. This is the result: CoffeScript: ...
0
votes
0answers
31 views

Dynamically display relevant form elements

Here is a group of questions (hidden by default except the first one) with yes|no buttons ...
5
votes
3answers
113 views

Follow-up to Morse Code String

This is probably one of the many follow-ups coming. What I have edited: Added equals() and hashCode() Added ...
1
vote
0answers
58 views

HTML to plain text converter

Please, review the code below. Test class: ...
2
votes
1answer
82 views

HTML Compressor with regex

I would like to compress a Magento HTML page using some regex, and this is what I have written: ...
5
votes
3answers
56 views

Extract room sizes & room types from an estate description with regex

I'm trying to extract room types and sizes from a descriptive text utilizing the following scripts as an exercise. Any tips on being more pythonic would be amazing! The script is based off the help I ...
13
votes
2answers
159 views

I think I might be having a regex nightmare

I've been working on the Rubberduck (an add-in for the VBA Editor /"VBE"), specifically here the VBA.Parser namespace. Here's how I ended up implementing the syntax ...
4
votes
1answer
98 views

Parsing Lua 5.2 strings with patterns

I wrote some code to parse Lua 5.2 strings in Lua 5.1, using patterns. It's a bit too slow, but it works fine as far as I tested. ...
0
votes
2answers
49 views

Optimizing regex alternation, ability to view which choice matched?

So I've got a regular expression parsing tcp responses from a music daemon. In case responses pile up I've come up with an expression to separate full responses from the data, however I'd like to also ...
6
votes
2answers
51 views

Perl 6 oneliner to sum up all numbers in a text file

The task is to sum up scores mentioned in a text file. Scores are floating point numbers as defined by the regexp float immediately preceded by a * character to ...
2
votes
0answers
44 views

Replace while loop with sed

I have a script for school that mimics the cp command. Part of the assignment is to modify the script so that the while loop (that assigns stdin to the variable filelist) is instead done with sed. ...
5
votes
1answer
134 views

Regex matching keys in a Dictionary

I have extended this class http://wiki.unity3d.com/index.php/CSharpMessenger_Extended to accept strings containing wildcards as eventTypes, therefore I am able to ...
10
votes
1answer
55 views

Automatic report generation from BibTeX

I wrote the following code for the question I asked here. Are there any catastrophic mistakes? (actually it did not really work with perltex and I am in doubt about having syntax mistake(s)) Also, I ...
5
votes
3answers
58 views

Some simple Perl and Regex

Reads from a flat file of three columns, delimited by at least one tab character. Filters the three columns based on input; returns list of corresponding emails. Arguments passed like ...
6
votes
2answers
351 views

The Bucketizer Script

This code is written in a SSIS Script Component that basically accomplishes what I previously had as a T-SQL script, that was reviewed here. I need to split a 80 character string that contains 20 ...
2
votes
3answers
72 views

Searching text for a string

This is my current code: ...
4
votes
2answers
69 views

Substituting Hebrew letter variants

I have two functions that replace letters. In one function, I'm replacing a regular Hebrew letter with its final form, and the other function undoes this operation. (Consider it like ...
7
votes
2answers
345 views

replace() for translating color names

I have some code to translate some color names, and this is what I did, quick and dirty. But I'm guessing there might be some function to replace arrays with arrays maybe, like in PHP, where you can ...
2
votes
1answer
116 views

Removing stray brackets from in between shortcodes

I was wondering if someone could point me in the right direction for cleaning up this code. WordPress uses shortcodes in the form [shortcode] to add extended functionality to posts and pages. What ...
3
votes
2answers
91 views

Regex to select the last components of a file path

I have a regex sequence that will take the end of a file path and select it for me for example: ...
6
votes
4answers
101 views

Extraction of numbers from currency string

I have the following code; whereas currency and views are in reality many JSON objects from an SAP export, that I can not rely ...
4
votes
3answers
80 views

Regex to find addresses and phone numbers

I am trying to optimize my Java code where I am parsing an address field. Address fields have the format: ...
23
votes
4answers
3k views

Someone thinks poorly of my server log parser

I have just been informed that the following code written by me is extremely poor. I have absolutely no idea why. It is memory efficient, and looks clean to me. But still the feedback is very poor. I ...
3
votes
3answers
662 views

DateTime-like class implementation in modern C++

In modern C++, there is no class like datetime in the standard which can be used in the program. However, with additional of modules like ...
3
votes
1answer
29 views

Faults using mod_rewrite

I never really bothered using mod_rewrite to achieve SEO friendly names but I've always admired from a distance because I've never been good at regex. The below .htaccess file does work, but I'm ...
4
votes
1answer
137 views

Fast regex to extract strings before and after a time

I want to get text1 and text2 by splitting time format Text1 10:24:02 Text2 Of the ...
8
votes
2answers
106 views

Generating and calling code on the fly

Delegate This class module defines what I'm calling, in this context, a Delegate - here a function that can take a number of parameters, evaluate a result, and ...
8
votes
1answer
561 views

Email validation using JavaScript

I have a function where I validate emails via a regex. I was wondering if this is the best regex to use or if there's a better way of doing it. Also is there a ...