Regular Expressions 101

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An explanation of your regex will be automatically generated as you type.
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
No Match

/
/
gm

Test String

Code Generator

Language

Generated Code

#include <StringConstants.au3> ; to declare the Constants of StringRegExp #include <Array.au3> ; UDF needed for _ArrayDisplay and _ArrayConcatenate Local $sRegex = "(?m)\.populate_tasks\[(arc|buck|build|hg|phabricator|source_control)," Local $sString = "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[arc,diff]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[arc,fix]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[arc,focus]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[arc,lint]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[arc,pull]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[arc,refocus]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[buck,build]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[buck,install]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[buck,project]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[buck,run]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[buck,test]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[build,arc_rebuild]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[build,buck_build]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[build,entschema]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[build,fbios_noextensions]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[build,instagram_ios_noextensions]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[build,messenger_ios_noextensions]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[build,multifeed]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[build,unicorn]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[build,wakizashi]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[build,wakizashi_s2p]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[devserver,arc_fix]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[devserver,fixmyserver]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[devserver,flow_oom]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[devserver,hack_oom]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[devserver,hhserver_oom]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[hack,hh_healthy_minutes]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[hg,amend]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[hg,bookmarks]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[hg,branch]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[hg,commit]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[hg,diff]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[hg,log]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[hg,pull]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[hg,rebase]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[hg,smartlog]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[hg,status]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[hg,update]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[ide,flow_check]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[ide,flow_init]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[ide,hh_full_check]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[ide,hh_lazy_check]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[ide,hh_server_init]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[ide,intellij_file_to_intellisense]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[ide,intellij_project_to_intellisense]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[land,clean_lands]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[land,landcastle]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[phabricator,diffusion_pageload]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[phabricator,gql_client_duration]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[phabricator,gql_mutation_duration]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[phabricator,jf_submit_set_dependencies]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[phabricator,jf_submit_set_diffproperty]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[phabricator,jf_submit_total_elapsed]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[phabricator,jf_submit_update_diff]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[phabricator,jf_submit_update_revision]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[presto,adhoc_queue]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[source_control,hg]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[source_control,jellyfish]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[test,local_www]" & @CRLF & _ "── infrastructure.devspeed.error_rates.devspeed_raw_cost_events.populate_tasks[test,mobilelab]" Local $aArray = StringRegExp($sString, $sRegex, $STR_REGEXPARRAYGLOBALFULLMATCH) Local $aFullArray[0] For $i = 0 To UBound($aArray) -1 _ArrayConcatenate($aFullArray, $aArray[$i]) Next $aArray = $aFullArray ; Present the entire match result _ArrayDisplay($aArray, "Result")

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 AutoIt, please visit: https://www.autoitscript.com/autoit3/docs/functions/StringRegExp.htm