Regular Expressions 101

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1

Kafka loki parser

Golang
Kafka loki parser
Submitted by anonymous - 6 months ago
1

Youtube Video ID

Java 8
Extract youtube video ID
Submitted by anonymous - 6 months ago (Last modified 6 months ago)
1

Extract tag name and its content

Python
Lrc file
Submitted by Cricar - 7 months ago
1

Match each tag

Python
Match each tag in a lrc file
Submitted by Cricar - 7 months ago
1

Group tags and lyrics

Python
Group tags and lyrics in one lrc file, multiple lines
Submitted by Cricar - 7 months ago
3

Placeholder resolving

.NET 7.0 (C#)
.Net regular expression for resolving placeholders in the format of ${rewriter(multilevel:key)?fallback} (+ variations)
Submitted by anonymous - 7 months ago
1

Improvement on Python Print substitution argument matching

Python
Get the python substitution strings from inside of print statements. Replace the whole substitution string with {{ ArgumentName }} for use in a Jinja2 rendering. Supports fstrings...
Submitted by Giles Knap - 7 months ago
1

Python Print String arg extraction

Python
Extract substitution parameters from python print strings works with fstrings old style format strings old style %(variable) strings
Submitted by Giles Knap - 7 months ago
1

Extract text strings from repeating text fields followed by a suffix

Java 8
This regex expression is useful for extracting only the text string from a value in a column that may contain values from individual rows with repeat strings tagged with a suffix. For example - Row 1: "Sales (#1)", Row 2: "Sales Match (#2)". From the shared examples, this regex will extract the text...
Submitted by nilotpalc - 7 months ago
1

groupping math every 2 comma separator

PCRE (PHP <7.3)
i have paste \n after every 2-th comma using sed sed 's/\(\(*,\)\{2\}\)/\1\n/g'
Submitted by sanekmihailow - 7 months ago
1

Remove specific parameter from URL

PCRE (PHP <7.3)
This pattern finds a parameter (sst) key + value in a GET request URL. When replaced with an empty string, effectively removes the parameter. Works with both full URLs and isolated query strings. Works in PCRE and PCRE2. Full use case: if (isset($_GET["sst"])) { // validate...
Submitted by Martin Holt - 8 months ago (Last modified 8 months ago)
1

CSV

Java 8
Crude CSV regex to split only by characters surrounded by non-whitespace characters. Ignore that it dosen't highlight all of the other commas in the editor. If you select the g regex flag it will properly show here, but not work in Java. Credit to @merosity (Merosity#0135) on Discord!
Submitted by Merosity, regice202 - 8 months ago
1

Opportunity Close

PCRE (PHP <7.3)
Prepare batch job for opportunity close
Submitted by wistlo - 8 months ago
1

HGVS - ClinVar Submission

Python
HGVS Nomenclature Check for ClinVar Submissions
Submitted by anonymous - 8 months ago (Last modified 8 months ago)
1

Adds custom prefix to tailwind classes

PCRE (PHP <7.3)
Or any other particular case where given any line that starts with the pattern "@apply" (or any other line heading) and it substitutes any word (list of characters without spaces), with or without puntuation in them, and it adds a custom prefix to all the words in that line but the line heading.
Submitted by @drakopablo.dev - 8 months ago
2

Invalid Windows Filename Chars

PCRE (PHP <7.3)
https://docs.microsoft.com/en-us/windows/win32/fileio/naming-a-file Integer value zero, sometimes referred to as the ASCII NUL character. Characters whose integer representations are in the range from 1 through 31, except for alternate data streams where these characters are allowed. For more info...
Submitted by anonymous - 8 months ago (Last modified 8 months ago)
1

0x28C6A6DdF8fF8A47A90A69bfE75cd89904a14d71

Golang
0x28C6A6DdF8fF8A47A90A69bfE75cd89904a14d71
Submitted by anonymous - 8 months ago
1

Match many cases of 8601

Java 8
This is still a working in progress Need to do Unit Tests and search for more use cases Match partial cases of 8601 such as: missing offset missing time...
Submitted by jpmand - 8 months ago (Last modified 8 months ago)
1

Funny Discord Thing

.NET 7.0 (C#)
Submitted by Deniz-seckin55 - 8 months ago
1

Discord Message JSON

.NET 7.0 (C#)
Regex for a Discord Message as JSON Example JSON for Regex: { "id": "1145344233713188874",...
Submitted by Deniz-seckin55 - 8 months ago (Last modified 8 months ago)
12345...591

Match many cases of 8601

1

Regular Expression
Java 8

"
^(?<year>\d{4})[-\/](?<month>0[1-9]|1[0-2])[-\/](?<day>0[1-9]|[1-2][0-9]|3[0-1])(?:[T\s](?:(?<hour>0[0-9]|1[0-9]|2[0-4]):(?<minute>\d{2}):(?<second>\d{2})(?:\.(?<nano>\d+))?))?(?:(?<offset>[Zz]|(?:[+-])(?:[01]\d|2[0-3])(?::?[0-5]\d)?)?)$
"
gm
Open regex in editor

Description

This is still a working in progress

Need to do Unit Tests and search for more use cases

Match partial cases of 8601 such as:

  • missing offset
  • missing time
  • only date and offset
  • nano present or not (and being from 1 digit to 9 digits)

Also properly captures the data by capturing only: year, month, date, hour, minute, second, nano and offset (be it 'Z' or '+02:00' or' +0200')

Submitted by jpmand - 8 months ago (Last modified 8 months ago)