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Detailed match information will be displayed here automatically.
  • All Tokens
  • Common Tokens
  • General Tokens
  • Anchors
  • Meta Sequences
  • Quantifiers
  • Group Constructs
  • Character Classes
  • Flags/Modifiers
  • Substitution
  • A single character of: a, b or c
    [abc]
  • A character except: a, b or c
    [^abc]
  • A character in the range: a-z
    [a-z]
  • A character not in the range: a-z
    [^a-z]
  • A character in the range: a-z or A-Z
    [a-zA-Z]
  • Any single character
    .
  • Alternate - match either a or b
    a|b
  • Any whitespace character
    \s
  • Any non-whitespace character
    \S
  • Any digit
    \d
  • Any non-digit
    \D
  • Any word character
    \w
  • Any non-word character
    \W
  • Non-capturing group
    (?:...)
  • Capturing group
    (...)
  • Zero or one of a
    a?
  • Zero or more of a
    a*
  • One or more of a
    a+
  • Exactly 3 of a
    a{3}
  • 3 or more of a
    a{3,}
  • Between 3 and 6 of a
    a{3,6}
  • Start of string
    ^
  • End of string
    $
  • A word boundary
    \b
  • Non-word boundary
    \B

Regular Expression
Processing...

Test String

Code Generator

Language

Generated Code

import re regex = re.compile(r"desc\s*\"(((?!\").)*)((?!\n).)*\n{1}task\s*:(((?!\n).)*)do(((?!\nend).)*)\nend", flags=re.DOTALL) test_str = ("import 'cloud2/cloud2.rb'\n" "desc \"transfer db from current location to local and new dev\"\n" "task :fulldbtransfer => [ \n" " :dbdown, :dbup, \n" " :dbup_live,]\n" "$comps_db = ['prube_yalecomps']\n" "$tnew_dbs = [ 'prube_yaletnew_drama_prod',\n" " 'prube_yaletnew_summer_cabaret_prod',\n" " 'prube_yaletnew_cabaret_prod',\n" " 'prube_yaletnew_music_prod',\n" " 'prube_yaletnew_rep_prod']\n" "$new_tnew_dbs = [ 'prube_yaletnew_drama',\n" " 'prube_yaletnew_summer_cabaret',\n" " 'prube_yaletnew_cabaret',\n" " 'prube_yaletnew_music',\n" " 'prube_yaletnew_rep']\n" "all_erube_dbs = $comps_db + $tnew_dbs\n" "desc \"Transfer Database, complete with tunnel setup and teardown\"\n" "task :dbdown do\n" " all_erube_dbs.each do |database_name|\n" " cloud2_mysqldump do tunnel_host 'cumulus-www-master-pub.rs.lynch2.com'\n" " tunnel_user 'www' db_host 'cumulus-db-master.rs.lynch2.com' skip_secure_auth true \n" " db_user 'mysql'\n" " db_pass 'mysql'\n" " db_name \" file_prefix 'SOURCE_'\n" " ignored_tables ['cache','hits','debug','sessionvars','sessions']\n" " end \n" " end\n" "end\n\n" "task :dbsandr do\n" " dbname = \"prube_yalecomps\"\n" " bucket_prefix = \"comps\"\n" " cloud2_sed do\n" " source_file \"db-tools/SOURCE_mysqldump_ dest_file \"db-tools/CLOUD2_ \n" " find_str [ ]\n\n" " replace_str [ ] end\n\n" " dbname = \"prube_yaletnew_drama_prod\"\n" " bucket_prefix = \"drame\"\n" " cloud2_sed do\n" " source_file \"db-tools/SOURCE_mysqldump_ dest_file \"db-tools/CLOUD2_ \n" " find_str [\n" " 'prube_yaletnew_drama_prod', ]\n\n" " replace_str [\n" " \"prube_yaletnew_drama\", ] end\n\n" " dbname = \"prube_yaletnew_summer_cabaret_prod\"\n" " bucket_prefix = \"summer-cabaret\"\n" " cloud2_sed do\n" " source_file \"db-tools/SOURCE_mysqldump_ dest_file \"db-tools/CLOUD2_ \n" " find_str [\n" " 'prube_yaletnew_summer_cabaret_prod', ]\n\n" " replace_str [\n" " 'prube_yaletnew_summer_cabaret', ] end\n\n\n" " dbname = \"prube_yaletnew_cabaret_prod\"\n" " bucket_prefix = \"cabaret\"\n" " cloud2_sed do\n" " source_file \"db-tools/SOURCE_mysqldump_ dest_file \"db-tools/CLOUD2_ \n" " find_str [\n" " 'prube_yaletnew_cabaret_prod', ]\n\n" " replace_str [\n" " 'prube_yaletnew_cabaret', ] end\n\n" " dbname = \"prube_yaletnew_music_prod\"\n" " bucket_prefix = \"music\"\n" " cloud2_sed do\n" " source_file \"db-tools/SOURCE_mysqldump_ dest_file \"db-tools/CLOUD2_ \n" " find_str [\n" " 'prube_yaletnew_music_prod', ]\n\n" " replace_str [\n" " 'prube_yaletnew_music', ] end\n\n" " dbname = \"prube_yaletnew_rep_prod\"\n" " bucket_prefix = \"rep\"\n" " cloud2_sed do\n" " source_file \"db-tools/SOURCE_mysqldump_ dest_file \"db-tools/CLOUD2_ \n" " find_str [\n" " 'prube_yaletnew_rep_prod', ]\n\n" " replace_str [\n" " 'prube_yaletnew_rep', ] end\n\n" "end\n\n\n\n" "desc \"Send Database to tigard-dev-rds\"\n" "task :dbup do\n" " upload_dbs \"reston-dev-rds.aws.lynch2.com\"\n" "end\n\n" "desc \"Send Database to tigard-mail2-rds\"\n" "task :dbup_live do\n" " upload_dbs \"reston-live-rds.aws.lynch2.com\"\n" "end\n\n" "def upload_dbs (dbhost)\n" " $comps_db.each do |database_name| \n" " cloud2_mysql do db_host dbhost\n" " db_user 'mysql'\n" " db_pass 'mysql'\n" " db_name \"mysql\" sql_files [\"CLOUD2_ end \n" " cloud2_mysql do db_host dbhost\n" " db_user 'mysql'\n" " db_pass 'mysql'\n" " db_name \" sql_files [\"erube_upgrade.sql\"]\n" " end \n" " end\n" " $new_tnew_dbs.each do |database_name| \n" " cloud2_mysql do db_host dbhost\n" " db_user 'mysql'\n" " db_pass 'mysql'\n" " db_name \"mysql\" sql_files [\"CLOUD2_ end \n" " cloud2_mysql do db_host dbhost\n" " db_user 'mysql'\n" " db_pass 'mysql'\n" " db_name \" sql_files [\"tnew_erube_upgrade.sql\"]\n" " end \n" " end\n" "end\n") match = regex.search(test_str) if match: print(f"Match was found at {match.start()}-{match.end()}: {match.group()}") for group_num, group in enumerate(match.groups(), start=1): print(f"Group {group_num} found at {match.start(group_num)}-{match.end(group_num)}: {group}")

Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Python, please visit: https://docs.python.org/3/library/re.html