Regular Expressions 101

gtgtg

Simple prefix matcher for validating URI Schemes according to [RFC2396, Section 3.1]( http://www.faqs.org/rfcs/rfc2396.html#3.5:~:text=well%20as%20%22http%22%29.-,scheme%20%20%20%20%20%20%20%20%3D%20alpha%20*%28%20alpha%20%7C%20digit%20%7C%20%22%2B%22%20%7C%20%22%2D%22%20%7C%20%22.%22%20%29,-Relative%20URI%20references) Go Playground: https://go.dev/play/p/vtYEugsNAfo

match: #aabbcc #abc (255,255,255) (255,255,255,255) 255,255,255 no match: #gggggg #ggg 256,256,256

https://regex101.com/r/hIak43/1

W alpha/

Parse the typical connection string address like 123.123.123.123:123, supports the correct port and octet range

regex of challenge

Simple Regex to *validate * (no extraction!) an IPv4 Range which can be a comma separated mixture of IPv4 addresses IPv4 CIDRs IPv4 Ranges like 1.1.1.1-1.1.1.10 Examples : 192.168.1.1,255.255.255.255/32,10.10.10.10/24,0.0.0.0/24 192.168.1.1/32 192.168.1.1 192.168.1.1/32 192.168.1.1/12 192.168.1.1/24 192.168.1.1/24 192.168.1.1/0,192.168.1.1/0 10.0.0.0/24 172.16.0.1-172.16.0.255 192.168.1.1,10.0.0.1/24,172.16.0.1-172.16.0.10 64.33.232.212 64.33.232.210/24

This is made to validate an ISO 8601 input in a Terraform variable validation block: validation { condition = can(regex("^P(\\d+Y)?(\\d+M)?(\\d+D)?(T(\\d+H)?(\\d+M)?(\\d+S)?)?$", var.value)) error_message = "The value must be a valid ISO 8601 duration string representing time. (e.g. PT1M, PT1H30M, PT30S, etc.)" }

...

Splits a Docker image string into the separate parts: image, tag, digest tag and digest are optional

Kafka loki parser

0x28C6A6DdF8fF8A47A90A69bfE75cd89904a14d71

Matching for mikrotik ROS 7 Used in promtail and grafana

Every valid line will be of the form: . . . NOTE: the distribution tag is expected to start with at least one letter and be followed by at least one digit.

Dj dus er geen je een je aan je enige eerst een he we er

see https://stackoverflow.com/questions/76228402/regex-to-extract-n-where-n-is-digit

Testing Authelia subdomain / path rules. You can read more at the Authelia Docs By default, this regex101 page is shown a test for a generic API path domain: "some-sub.drpranavmishra.com" resources: "^/api([/?].*)?$" # API paths "^/healthz.*$" # Health check "^/\?[\S]{40,70}$" # PrivateBin policy: bypass`

Trying to get digits

walter1976LastClean

匹配.mka后缀名的文件，忽略大小写

匹配.mkv和.mp4后缀名中包含menu或sp或.sample，忽略大小写

Aquivalent solution for golang's unsupported negative lookahead in re2 flavor of go's regex. This example provides a negative lookahead similar to (?!/api/) ignoring routes with the /api/ prefix at the start.

plcnext version strings

ss

"1.2.3" Group 1: 1 Group 2: 2 Group 3: 3

kt SDKV2

Go SDK v2

React SDK V3

Parse XDCC filename strings for a name and episode. Appears to work for most major bots but unreliable for any data other than name and episode number/version

extract time stamp from log entry

This re2 (using Go in my case) matches the APRS-IS header. The format of the APRS-IS packet is TNC2 standard: SOURCE>DESTINATION,PATH:PACKET This regex matches the Q construct format used by APRS-IS: `SOURCE>DESTINATION,PATH,QCON,FROMCALL: The result is a series of capturable groups: Group 1: Src SSID Group 2: Dest SSID Group 3: Path Group 4: Q construct Group 5: From Calll

To get

Date String ISO Pattern matcher

VLAN ID Validation Regex Please use first segment or second depending on the Extended VLAN usage such as "1-256" or "1-4096" : Non-extended VLAN IDs (1-256), check v2 of the regex entry ^(25[0-6]|(2[0-4]|1\d|[1-9])\d|[1-9])$ Extended VLAN IDs (1-4096), check v3 of the regex entry ^(409[0-6]|(40[0-8]|[1-3]\d\d|[1-9]\d|[1-9])\d|[1-9])$

IPv4 Address Validation Regex

Get every word ending with dot using Regex/VBA

Useful for validating services in TF

Used by Zarf to obtain the name of a repository when given a git URL.

S3 Path with ending .json

Determine the version value in a gemspec configuration file

11

Match Date From DateTime ISO 8601

nginx access log regex

find/replace oracle package body new type

Substitui tudo que não for letra, número e traço

[A-Za-z0-9]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)

Regex para uso com Grafana Loki Log feito via Mangle, com prefix $user do freeradius.

Simple search of string length with the regexp