From 8b6b51b15f2223994a4c25e4e30b612a9f292de0 Mon Sep 17 00:00:00 2001
From: NanthR <61490162+NanthR@users.noreply.github.com>
Date: Sat, 3 Oct 2020 00:56:46 +0530
Subject: [PATCH] grex: add command (#4396)

---
 pages/common/grex.md | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 pages/common/grex.md

diff --git a/pages/common/grex.md b/pages/common/grex.md
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+# grex
+
+> Simple command line tool to generate regular expressions.
+> More information: <https://github.com/pemistahl/grex>.
+
+- Generate a simple regular expression:
+
+` grex {{space_separated_strings}}`
+
+- Generate a case-insensitive regex:
+
+`grex -i {{space_separated_strings}}`
+
+- Replace digits with '\d':
+
+`grex -d {{space_separated_strings}}`
+
+- Replace unicode word character with '\w':
+
+`grex -w {{space_separated_strings}}`
+
+- Replace spaces with '\s':
+
+`grex -s {{space_separated_strings}}`
+
+- Add {min, max} quantifier representation for repeating sub-strings:
+
+`grex -r {{space_separated_strings}}`