regex.md

• https://regex101.com/

Sublime text

Swap lines like that

- "name": docker.domain.tld
  "login": docker

• Ctrl+H
• Find what: ^- ("login": [^\n]*)\n^..("name": [^\n]*)\n
• Replace with: - $2\n $1\n 💡 $1 and $2 are references to capturing groups
• check Regular expression
• UNcheck case sensitive
• check Wrap
• Replace all
• source: https://stackoverflow.com/questions/48455198/swap-line-text-in-sublime-text-3/48460185#48460185

Python

Python's re is painfully slow for replacements in relatively large (~900k) buffers. Use Google's RE2

• https://github.com/google/re2/wiki/Syntax

pip3 install google-re2

import re2

options = re2.Options()
# [!!] Looks like posix_syntax is not needed. Tried it to make \S work. But looks it works by default
# # Without posix_syntax, perl_classes and one_line have no effect
# # https://github.com/google/re2/blob/6dcd83d60f7944926bfd308cc13979fc53dd69ca/re2/re2.h#L634
# options.posix_syntax = True
# # Enables (among others) \S
# options.perl_classes = True
# options.one_line = False

config, subs_num = re2.subn(pattern, replace, config, options=options)

for match in re2.finditer(pattern, config, options=options):
  pass