VirtualTam's bookmarks

1. Elasticsearch - Grok processor 2023-11-19

   tags: observability/elastic/elasticsearch, observability/elastic/logstash, observability/logging, programming/go, programming/java, programming/regular-expressions, programming/rust

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   • Elastic - Grokking Grok
   • Kibana - Debug grok expressions
   • Grok Constructor
   • Elasticsearch Grok Patterns
   • Logstash Grok Patterns

   Alternative implementations:

   • vjeantet/grok - Simple library to use/parse grok patterns with Go
     • GuanceCloud/grok - Fork of the above
     • logrusorgru/grokky - Pure golang grok-like library
     • Telegraf's Grok Parser Plugin
   • Vector Remap Language - Datadog Grok Parser
2. Regex engine internals as a library 2023-07-14

   tags: programming/c++, programming/go, programming/regular-expressions, programming/rust

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   • rust-lang/regex
   • google/re2
   • BurntSushi/rebar - A biased barometer for gauging the relative speed of some regex engines on a curated set of tasks
   • Resources about implementing regular expression search efficiently, Russ Cox
3. POSIX Character Classes and Bracket Expressions 2022-11-29

   tags: command-line, linux, posix, programming/regular-expressions, text

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   • awk: https://www.gnu.org/software/gawk/manual/html_node/Bracket-Expressions.html
   • grep: https://www.gnu.org/software/grep/manual/html_node/Character-Classes-and-Bracket-Expressions.html
   • sed: https://www.gnu.org/software/sed/manual/html_node/Character-Classes-and-Bracket-Expressions.html
   • tr: https://man7.org/linux/man-pages/man1/tr.1p.html
4. hyperscan: High-performance regular expression matching library 2019-12-31

   tags: intel, parser, performance, programming/json, programming/regular-expressions, security

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   • https://www.hyperscan.io
   • https://github.blog/2018-10-17-behind-the-scenes-of-github-token-scanning/
   • https://www.hyperscan.io/2017/06/20/regex-set-scanning-hyperscan-re2set/
5. Regular-Expressions.info - Regex Tutorial, Examples and Reference - Regexp Patterns 2018-09-23

   tags: parser, programming/regular-expressions, text

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6. regexp - The Go Programming Language 2018-09-23

   tags: programming/go, programming/regular-expressions

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   • https://github.com/StefanSchroeder/Golang-Regex-Tutorial
   • https://golang.org/pkg/strconv/
7. Brian Kernighan Remembers the Origins of 'grep' - The New Stack 2018-07-26

   tags: command-line, grep, linux, programming/regular-expressions, unix

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8. Regular Expression HOWTO — Python 3 documentation 2018-05-24

   tags: programming/python, programming/regular-expressions, replace, text

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9. Grok filter plugin | Logstash Reference | Elastic 2018-02-09

   tags: data, observability/elastic, observability/elastic/logstash, observability/logging, parser, programming/regular-expressions

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   • https://www.elastic.co/guide/en/logstash/current/field-extraction.html
   • https://www.elastic.co/guide/en/logstash/current/config-examples.html
   • https://github.com/logstash-plugins/logstash-patterns-core/blob/master/patterns/grok-patterns
   • https://logz.io/blog/logstash-grok/
   • https://github.com/elastic/logstash/issues/2965
10. Understanding sed – Practical Guide – Developers Area 2018-01-19

    tags: command-line, linux, programming/regular-expressions, programming/shell, text, unix

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11. Ripgrep – A new command line search tool | Hacker News 2017-03-03

    tags: grep, linux, performance, programming/regular-expressions, programming/rust, search

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    Open Source collab' done right!

    See comment threads between authors of ag (The Silver Searcher) & ripgrep ;-)

12. AWK: shortened if-then-else with regex - Stack Overflow 2015-07-23

    tags: condition, match, programming/awk, programming/regular-expressions, programming/script, replace

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    Context: replace spaces by dashes in a script-generated HTML file's links

    1awk -F\' 'm = /a href/ { gsub(/ /,'-',$2); print$1'\''$2'\''$3} !m {print $0}'
    

13. Regex Crosswords 2014-12-02

    tags: crossword, game, programming/regular-expressions, web, wtf

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14. Grin | Grep-like pythonic tool! 2014-06-21

    tags: development, find, grep, grin, programming/python, programming/regular-expressions, terminal

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15. Clojurer des regexps avec Java, en Lisp :) - LinuxFr.org 2013-08-27

    tags: clojure, development, dlfp, editor/emacs, leiningen, programming/java, programming/lisp, programming/regular-expressions

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