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

Generated Code

re = /<script([\s\S]*?)>([\s\S]*?)<\/script>/m str = '<template> <div :class="classObj" class="app-wrapper"> <div v-if="device===\'mobile\'&&sidebar.opened" class="drawer-bg" @click="handleClickOutside" /> <sidebar class="sidebar-container" /> <div :class="{hasTagsView:needTagsView}" class="main-container"> <div :class="{\'fixed-header\':fixedHeader}"> <navbar /> <tags-view v-if="needTagsView" /> </div> <app-main /> <right-panel v-if="showSettings"> <settings /> </right-panel> </div> </div> </template> <script> import RightPanel from \'@/components/RightPanel\' import { AppMain, Navbar, Settings, Sidebar, TagsView } from \'./components\' import ResizeMixin from \'./mixin/ResizeHandler\' import { mapState } from \'vuex\' export default { name: \'Layout\', components: { AppMain, Navbar, RightPanel, Settings, Sidebar, TagsView }, mixins: [ResizeMixin], computed: { ...mapState({ sidebar: state => state.app.sidebar, device: state => state.app.device, showSettings: state => state.settings.showSettings, needTagsView: state => state.settings.tagsView, fixedHeader: state => state.settings.fixedHeader }), classObj() { return { hideSidebar: !this.sidebar.opened, openSidebar: this.sidebar.opened, withoutAnimation: this.sidebar.withoutAnimation, mobile: this.device === \'mobile\' } } }, methods: { handleClickOutside() { this.$store.dispatch(\'app/closeSideBar\', { withoutAnimation: false }) } } } </script> <style lang="scss" scoped> @import "~@/styles/mixin.scss"; @import "~@/styles/variables.scss"; .app-wrapper { @include clearfix; position: relative; height: 100%; width: 100%; &.mobile.openSidebar { position: fixed; top: 0; } } .drawer-bg { background: #000; opacity: 0.3; width: 100%; top: 0; height: 100%; position: absolute; z-index: 999; } .fixed-header { position: fixed; top: 0; right: 0; z-index: 9; width: calc(100% - #{$sideBarWidth}); transition: width 0.28s; } .hideSidebar .fixed-header { width: calc(100% - 54px) } .mobile .fixed-header { width: 100%; } </style>' # Print the match result str.scan(re) do |match| puts match.to_s end

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 Ruby, please visit: http://ruby-doc.org/core-2.2.0/Regexp.html