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]
  • Character class intersection
    [\w&&[^\d]]
  • 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

Generated Code

// include the latest version of the regex crate in your Cargo.toml extern crate regex; use regex::Regex; fn main() { let regex = Regex::new(r"(?m)<script([\s\S]*?)>([\s\S]*?)<\/script>").unwrap(); let string = "<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>"; // result will be an iterator over tuples containing the start and end indices for each match in the string let result = regex.captures_iter(string); for mat in result { println!("{:?}", mat); } }

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 Rust, please visit: https://docs.rs/regex/latest/regex/