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.
3
votes
2answers
57 views
Parsing a URL from a document and matching it from an array
I need help in improving this script that I have written to parse a URL and check it from an array.
This is what I have done till now: (fiddle)
This is working fine. Was this done correctly? What ...
1
vote
0answers
64 views
Page Spider in PHP
I have a working spider, however, it runs fairly slowly thanks to Australia's horrible internet. Can anyone give me some tips on speeding this up?
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6
votes
2answers
192 views
Removing Asterisks and neighbors from a string
I am going through the CodingBat exercises for Java. I got to this problem:
Return a version of the given string, where for every star (*) in the string the star and the chars immediately to its ...
1
vote
2answers
68 views
Match all youtube links in a string of text
I'm looking to pull all the youtube links from a string of text and was wondering how does this look?
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2
votes
1answer
32 views
2
votes
1answer
41 views
Regex in combination with file compare
I have made a funtion to compare text files line by line, where timestamps and jobnumbers are replaced for a identical string. By lack of experience I'm not sure if this is the best way to do this.
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7
votes
1answer
94 views
Finding Pattern score
You are given 3 strings: text, pre_text and post_text. Let L be a
substring of text. For each substring L of text, we define
pattern_score as follows:
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8
votes
3answers
963 views
Transform snake_case to camelCase
I want to convert db columns such as is_deleted or product_code which consist of xx_xx to ...
4
votes
2answers
61 views
Normalizing strings using PHP preg_replace and regex expressions
I needed a way to normalize nearly any given input for a configuration parameter on a dashboard. Server side code is in PHP so I wrote a test script to experiment with ...
4
votes
1answer
55 views
Evaluating an expression with integers, +, and *, as well as -, / - revision 3
The original question came from this web site.
Revision 1
Revision 2
And this is the third revision. I delete spaces and validate an equation before computing.
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2
votes
2answers
91 views
Converting file from Markdown-like markup into HTML using repeated substitutions
The following code reads a file, splits its data, replaces some characters in the data, and then joins the data again (I added more details in the comments):
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5
votes
1answer
54 views
Parsing error messages using regular expressions in Java 8
I have a below method in Java 8 which checks for message pattern and finds the line number from the message.
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1
vote
1answer
29 views
Parsing logs in sed efficiently
I have an application which log file has most lines start with a time/date, followed by a debugging level and the actual log message. Often I want to watch the output live and colors make it a lot ...
4
votes
1answer
49 views
Link to WinRT XAML code optimization
I need a method which will parse text to RichTextBlock-compatible XAML markup with clickable links.
Example:
Input:
...
-2
votes
1answer
34 views
Conditionally splitting a string [closed]
My requirement is:
dest = comp ; jump // Either the dest or jump fields may be empty. If
dest is empty, the "=" is omitted; If jump is empty, the ";" is
omitted.
So I may have something like ...
1
vote
1answer
46 views
Filename interpreter for TV shows
I have small class which interprets TV show filenames to extract the show title and episode number. Due to the nature of the filenames, I have chosen for a cleaning approach: I clean the filename ...
1
vote
1answer
36 views
10
votes
3answers
241 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
34 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
99 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
44 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
183 views
1
vote
1answer
46 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:
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1
vote
2answers
32 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
103 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
48 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.
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5
votes
1answer
63 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
48 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:
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4
votes
1answer
77 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
34 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
...
5
votes
3answers
160 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
70 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.
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3
votes
3answers
298 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
1k 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?
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5
votes
1answer
191 views
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):
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-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
56 views
Regex to Match Email address
I have the below regex to match email address with atleast one @ and one .
...
3
votes
1answer
85 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
32 views
Dynamically display relevant form elements
Here is a group of questions (hidden by default except the first one) with yes|no buttons
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5
votes
3answers
146 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
69 views
2
votes
1answer
195 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
57 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
179 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
0answers
141 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.
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0
votes
2answers
68 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
56 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
64 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.
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5
votes
1answer
330 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 ...
