Regular Expressions 101

Save & Share

Flavor

  • PCRE2 (PHP >=7.3)
  • PCRE (PHP <7.3)
  • ECMAScript (JavaScript)
  • Python
  • Golang
  • Java 8
  • .NET 7.0 (C#)
  • Rust
  • Regex Flavor Guide

Function

  • Match
  • Substitution
  • List
  • Unit Tests

Tools

Sponsors
There are currently no sponsors. Become a sponsor today!
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

import java.util.regex.Matcher; import java.util.regex.Pattern; public class Example { public static void main(String[] args) { final String regex = "(?:\\@)(?<key>[\\w\\s-]*)(?:\\:\\s*)(?<value>[0-9]+)+(?<unit>[\\w\\s-]*)(?:\\;)"; final String string = "//\n" + "// Variables\n" + "// --------------------------------------------------\n\n\n" + "//== Colors\n" + "//\n" + "//## Gray and brand colors for use across Bootstrap.\n\n" + "@gray-base: #000;\n" + "@gray-darker: lighten(@gray-base, 13.5%); // #222\n" + "@gray-dark: lighten(@gray-base, 20%); // #333\n" + "@gray: lighten(@gray-base, 33.5%); // #555\n" + "@gray-light: lighten(@gray-base, 46.7%); // #777\n" + "@gray-lighter: lighten(@gray-base, 93.5%); // #eee\n\n" + "@brand-primary: darken(#428bca, 6.5%); // #337ab7\n" + "@brand-success: #5cb85c;\n" + "@brand-info: #5bc0de;\n" + "@brand-warning: #f0ad4e;\n" + "@brand-danger: #d9534f;\n\n\n" + "//== Scaffolding\n" + "//\n" + "//## Settings for some of the most global styles.\n\n" + "//** Background color for `<body>`.\n" + "@body-bg: #fff;\n" + "//** Global text color on `<body>`.\n" + "@text-color: @gray-dark;\n\n" + "//** Global textual link color.\n" + "@link-color: @brand-primary;\n" + "//** Link hover color set via `darken()` function.\n" + "@link-hover-color: darken(@link-color, 15%);\n" + "//** Link hover decoration.\n" + "@link-hover-decoration: underline;\n\n\n" + "//== Typography\n" + "//\n" + "//## Font, line-height, and color for body text, headings, and more.\n\n" + "@font-family-sans-serif: \"Helvetica Neue\", Helvetica, Arial, sans-serif;\n" + "@font-family-serif: Georgia, \"Times New Roman\", Times, serif;\n" + "//** Default monospace fonts for `<code>`, `<kbd>`, and `<pre>`.\n" + "@font-family-monospace: Menlo, Monaco, Consolas, \"Courier New\", monospace;\n" + "@font-family-base: @font-family-sans-serif;\n\n" + "@font-size-base: 14px;\n" + "@font-size-large: ceil((@font-size-base * 1.25)); // ~18px\n" + "@font-size-small: ceil((@font-size-base * 0.85)); // ~12px\n\n" + "@font-size-h1: floor((@font-size-base * 2.6)); // ~36px\n" + "@font-size-h2: floor((@font-size-base * 2.15)); // ~30px\n" + "@font-size-h3: ceil((@font-size-base * 1.7)); // ~24px\n" + "@font-size-h4: ceil((@font-size-base * 1.25)); // ~18px\n" + "@font-size-h5: @font-size-base;\n" + "@font-size-h6: ceil((@font-size-base * 0.85)); // ~12px\n\n" + "//** Unit-less `line-height` for use in components like buttons.\n" + "@line-height-base: 1.428571429; // 20/14\n" + "//** Computed \"line-height\" (`font-size` * `line-height`) for use with `margin`, `padding`, etc.\n" + "@line-height-computed: floor((@font-size-base * @line-height-base)); // ~20px\n\n" + "//** By default, this inherits from the `<body>`.\n" + "@headings-font-family: inherit;\n" + "@headings-font-weight: 500;\n" + "@headings-line-height: 1.1;\n" + "@headings-color: inherit;\n\n\n" + "//== Iconography\n" + "//\n" + "//## Specify custom location and filename of the included Glyphicons icon font. Useful for those including Bootstrap via Bower.\n\n" + "//** Load fonts from this directory.\n" + "@icon-font-path: \"../fonts/\";\n" + "//** File name for all font files.\n" + "@icon-font-name: \"glyphicons-halflings-regular\";\n" + "//** Element ID within SVG icon file.\n" + "@icon-font-svg-id: \"glyphicons_halflingsregular\";\n\n\n" + "//== Components\n" + "//\n" + "//## Define common padding and border radius sizes and more. Values based on 14px text and 1.428 line-height (~20px to start).\n\n" + "@padding-base-vertical: 6px;\n" + "@padding-base-horizontal: 12px;\n\n" + "@padding-large-vertical: 10px;\n" + "@padding-large-horizontal: 16px;\n\n" + "@padding-small-vertical: 5px;\n" + "@padding-small-horizontal: 10px;\n\n" + "@padding-xs-vertical: 1px;\n" + "@padding-xs-horizontal: 5px;\n\n" + "@line-height-large: 1.3333333; // extra decimals for Win 8.1 Chrome\n" + "@line-height-small: 1.5;\n\n" + "@border-radius-base: 4px;\n" + "@border-radius-large: 6px;\n" + "@border-radius-small: 3px;\n\n" + "//** Global color for active items (e.g., navs or dropdowns).\n" + "@component-active-color: #fff;\n" + "//** Global background color for active items (e.g., navs or dropdowns).\n" + "@component-active-bg: @brand-primary;\n\n" + "//** Width of the `border` for generating carets that indicator dropdowns.\n" + "@caret-width-base: 4px;\n" + "//** Carets increase slightly in size for larger components.\n" + "@caret-width-large: 5px;\n\n\n" + "//== Tables\n" + "//\n" + "//## Customizes the `.table` component with basic values, each used across all table variations.\n\n" + "//** Padding for `<th>`s and `<td>`s.\n" + "@table-cell-padding: 8px;\n" + "//** Padding for cells in `.table-condensed`.\n" + "@table-condensed-cell-padding: 5px;\n\n" + "//** Default background color used for all tables.\n" + "@table-bg: transparent;\n" + "//** Background color used for `.table-striped`.\n" + "@table-bg-accent: #f9f9f9;\n" + "//** Background color used for `.table-hover`.\n" + "@table-bg-hover: #f5f5f5;\n" + "@table-bg-active: @table-bg-hover;\n\n" + "//** Border color for table and cell borders.\n" + "@table-border-color: #ddd;\n\n\n" + "//== Buttons\n" + "//\n" + "//## For each of Bootstrap's buttons, define text, background and border color.\n\n" + "@btn-font-weight: normal;\n\n" + "@btn-default-color: #333;\n" + "@btn-default-bg: #fff;\n" + "@btn-default-border: #ccc;\n\n" + "@btn-primary-color: #fff;\n" + "@btn-primary-bg: @brand-primary;\n" + "@btn-primary-border: darken(@btn-primary-bg, 5%);\n\n" + "@btn-success-color: #fff;\n" + "@btn-success-bg: @brand-success;\n" + "@btn-success-border: darken(@btn-success-bg, 5%);\n\n" + "@btn-info-color: #fff;\n" + "@btn-info-bg: @brand-info;\n" + "@btn-info-border: darken(@btn-info-bg, 5%);\n\n" + "@btn-warning-color: #fff;\n" + "@btn-warning-bg: @brand-warning;\n" + "@btn-warning-border: darken(@btn-warning-bg, 5%);\n\n" + "@btn-danger-color: #fff;\n" + "@btn-danger-bg: @brand-danger;\n" + "@btn-danger-border: darken(@btn-danger-bg, 5%);\n\n" + "@btn-link-disabled-color: @gray-light;\n\n\n" + "//== Forms\n" + "//\n" + "//##\n\n" + "//** `<input>` background color\n" + "@input-bg: #fff;\n" + "//** `<input disabled>` background color\n" + "@input-bg-disabled: @gray-lighter;\n\n" + "//** Text color for `<input>`s\n" + "@input-color: @gray;\n" + "//** `<input>` border color\n" + "@input-border: #ccc;\n\n" + "// TODO: Rename `@input-border-radius` to `@input-border-radius-base` in v4\n" + "//** Default `.form-control` border radius\n" + "// This has no effect on `<select>`s in some browsers, due to the limited stylability of `<select>`s in CSS.\n" + "@input-border-radius: @border-radius-base;\n" + "//** Large `.form-control` border radius\n" + "@input-border-radius-large: @border-radius-large;\n" + "//** Small `.form-control` border radius\n" + "@input-border-radius-small: @border-radius-small;\n\n" + "//** Border color for inputs on focus\n" + "@input-border-focus: #66afe9;\n\n" + "//** Placeholder text color\n" + "@input-color-placeholder: #999;\n\n" + "//** Default `.form-control` height\n" + "@input-height-base: (@line-height-computed + (@padding-base-vertical * 2) + 2);\n" + "//** Large `.form-control` height\n" + "@input-height-large: (ceil(@font-size-large * @line-height-large) + (@padding-large-vertical * 2) + 2);\n" + "//** Small `.form-control` height\n" + "@input-height-small: (floor(@font-size-small * @line-height-small) + (@padding-small-vertical * 2) + 2);\n\n" + "//** `.form-group` margin\n" + "@form-group-margin-bottom: 15px;\n\n" + "@legend-color: @gray-dark;\n" + "@legend-border-color: #e5e5e5;\n\n" + "//** Background color for textual input addons\n" + "@input-group-addon-bg: @gray-lighter;\n" + "//** Border color for textual input addons\n" + "@input-group-addon-border-color: @input-border;\n\n" + "//** Disabled cursor for form controls and buttons.\n" + "@cursor-disabled: not-allowed;\n\n\n" + "//== Dropdowns\n" + "//\n" + "//## Dropdown menu container and contents.\n\n" + "//** Background for the dropdown menu.\n" + "@dropdown-bg: #fff;\n" + "//** Dropdown menu `border-color`.\n" + "@dropdown-border: rgba(0,0,0,.15);\n" + "//** Dropdown menu `border-color` **for IE8**.\n" + "@dropdown-fallback-border: #ccc;\n" + "//** Divider color for between dropdown items.\n" + "@dropdown-divider-bg: #e5e5e5;\n\n" + "//** Dropdown link text color.\n" + "@dropdown-link-color: @gray-dark;\n" + "//** Hover color for dropdown links.\n" + "@dropdown-link-hover-color: darken(@gray-dark, 5%);\n" + "//** Hover background for dropdown links.\n" + "@dropdown-link-hover-bg: #f5f5f5;\n\n" + "//** Active dropdown menu item text color.\n" + "@dropdown-link-active-color: @component-active-color;\n" + "//** Active dropdown menu item background color.\n" + "@dropdown-link-active-bg: @component-active-bg;\n\n" + "//** Disabled dropdown menu item background color.\n" + "@dropdown-link-disabled-color: @gray-light;\n\n" + "//** Text color for headers within dropdown menus.\n" + "@dropdown-header-color: @gray-light;\n\n" + "//** Deprecated `@dropdown-caret-color` as of v3.1.0\n" + "@dropdown-caret-color: #000;\n\n\n" + "//-- Z-index master list\n" + "//\n" + "// Warning: Avoid customizing these values. They're used for a bird's eye view\n" + "// of components dependent on the z-axis and are designed to all work together.\n" + "//\n" + "// Note: These variables are not generated into the Customizer.\n\n" + "@zindex-navbar: 1000;\n" + "@zindex-dropdown: 1000;\n" + "@zindex-popover: 1060;\n" + "@zindex-tooltip: 1070;\n" + "@zindex-navbar-fixed: 1030;\n" + "@zindex-modal-background: 1040;\n" + "@zindex-modal: 1050;\n\n\n" + "//== Media queries breakpoints\n" + "//\n" + "//## Define the breakpoints at which your layout will change, adapting to different screen sizes.\n\n" + "// Extra small screen / phone\n" + "//** Deprecated `@screen-xs` as of v3.0.1\n" + "@screen-xs: 480px;\n" + "//** Deprecated `@screen-xs-min` as of v3.2.0\n" + "@screen-xs-min: @screen-xs;\n" + "//** Deprecated `@screen-phone` as of v3.0.1\n" + "@screen-phone: @screen-xs-min;\n\n" + "// Small screen / tablet\n" + "//** Deprecated `@screen-sm` as of v3.0.1\n" + "@screen-sm: 768px;\n" + "@screen-sm-min: @screen-sm;\n" + "//** Deprecated `@screen-tablet` as of v3.0.1\n" + "@screen-tablet: @screen-sm-min;\n\n" + "// Medium screen / desktop\n" + "//** Deprecated `@screen-md` as of v3.0.1\n" + "@screen-md: 992px;\n" + "@screen-md-min: @screen-md;\n" + "//** Deprecated `@screen-desktop` as of v3.0.1\n" + "@screen-desktop: @screen-md-min;\n\n" + "// Large screen / wide desktop\n" + "//** Deprecated `@screen-lg` as of v3.0.1\n" + "@screen-lg: 1200px;\n" + "@screen-lg-min: @screen-lg;\n" + "//** Deprecated `@screen-lg-desktop` as of v3.0.1\n" + "@screen-lg-desktop: @screen-lg-min;\n\n" + "// So media queries don't overlap when required, provide a maximum\n" + "@screen-xs-max: (@screen-sm-min - 1);\n" + "@screen-sm-max: (@screen-md-min - 1);\n" + "@screen-md-max: (@screen-lg-min - 1);\n\n\n" + "//== Grid system\n" + "//\n" + "//## Define your custom responsive grid.\n\n" + "//** Number of columns in the grid.\n" + "@grid-columns: 12;\n" + "//** Padding between columns. Gets divided in half for the left and right.\n" + "@grid-gutter-width: 30px;\n" + "// Navbar collapse\n" + "//** Point at which the navbar becomes uncollapsed.\n" + "@grid-float-breakpoint: @screen-sm-min;\n" + "//** Point at which the navbar begins collapsing.\n" + "@grid-float-breakpoint-max: (@grid-float-breakpoint - 1);\n\n\n" + "//== Container sizes\n" + "//\n" + "//## Define the maximum width of `.container` for different screen sizes.\n\n" + "// Small screen / tablet\n" + "@container-tablet: (720px + @grid-gutter-width);\n" + "//** For `@screen-sm-min` and up.\n" + "@container-sm: @container-tablet;\n\n" + "// Medium screen / desktop\n" + "@container-desktop: (940px + @grid-gutter-width);\n" + "//** For `@screen-md-min` and up.\n" + "@container-md: @container-desktop;\n\n" + "// Large screen / wide desktop\n" + "@container-large-desktop: (1140px + @grid-gutter-width);\n" + "//** For `@screen-lg-min` and up.\n" + "@container-lg: @container-large-desktop;\n\n\n" + "//== Navbar\n" + "//\n" + "//##\n\n" + "// Basics of a navbar\n" + "@navbar-height: 50px;\n" + "@navbar-margin-bottom: @line-height-computed;\n" + "@navbar-border-radius: @border-radius-base;\n" + "@navbar-padding-horizontal: floor((@grid-gutter-width / 2));\n" + "@navbar-padding-vertical: ((@navbar-height - @line-height-computed) / 2);\n" + "@navbar-collapse-max-height: 340px;\n\n" + "@navbar-default-color: #777;\n" + "@navbar-default-bg: #f8f8f8;\n" + "@navbar-default-border: darken(@navbar-default-bg, 6.5%);\n\n" + "// Navbar links\n" + "@navbar-default-link-color: #777;\n" + "@navbar-default-link-hover-color: #333;\n" + "@navbar-default-link-hover-bg: transparent;\n" + "@navbar-default-link-active-color: #555;\n" + "@navbar-default-link-active-bg: darken(@navbar-default-bg, 6.5%);\n" + "@navbar-default-link-disabled-color: #ccc;\n" + "@navbar-default-link-disabled-bg: transparent;\n\n" + "// Navbar brand label\n" + "@navbar-default-brand-color: @navbar-default-link-color;\n" + "@navbar-default-brand-hover-color: darken(@navbar-default-brand-color, 10%);\n" + "@navbar-default-brand-hover-bg: transparent;\n\n" + "// Navbar toggle\n" + "@navbar-default-toggle-hover-bg: #ddd;\n" + "@navbar-default-toggle-icon-bar-bg: #888;\n" + "@navbar-default-toggle-border-color: #ddd;\n\n\n" + "// Inverted navbar\n" + "// Reset inverted navbar basics\n" + "@navbar-inverse-color: lighten(@gray-light, 15%);\n" + "@navbar-inverse-bg: #222;\n" + "@navbar-inverse-border: darken(@navbar-inverse-bg, 10%);\n\n" + "// Inverted navbar links\n" + "@navbar-inverse-link-color: lighten(@gray-light, 15%);\n" + "@navbar-inverse-link-hover-color: #fff;\n" + "@navbar-inverse-link-hover-bg: transparent;\n" + "@navbar-inverse-link-active-color: @navbar-inverse-link-hover-color;\n" + "@navbar-inverse-link-active-bg: darken(@navbar-inverse-bg, 10%);\n" + "@navbar-inverse-link-disabled-color: #444;\n" + "@navbar-inverse-link-disabled-bg: transparent;\n\n" + "// Inverted navbar brand label\n" + "@navbar-inverse-brand-color: @navbar-inverse-link-color;\n" + "@navbar-inverse-brand-hover-color: #fff;\n" + "@navbar-inverse-brand-hover-bg: transparent;\n\n" + "// Inverted navbar toggle\n" + "@navbar-inverse-toggle-hover-bg: #333;\n" + "@navbar-inverse-toggle-icon-bar-bg: #fff;\n" + "@navbar-inverse-toggle-border-color: #333;\n\n\n" + "//== Navs\n" + "//\n" + "//##\n\n" + "//=== Shared nav styles\n" + "@nav-link-padding: 10px 15px;\n" + "@nav-link-hover-bg: @gray-lighter;\n\n" + "@nav-disabled-link-color: @gray-light;\n" + "@nav-disabled-link-hover-color: @gray-light;\n\n" + "//== Tabs\n" + "@nav-tabs-border-color: #ddd;\n\n" + "@nav-tabs-link-hover-border-color: @gray-lighter;\n\n" + "@nav-tabs-active-link-hover-bg: @body-bg;\n" + "@nav-tabs-active-link-hover-color: @gray;\n" + "@nav-tabs-active-link-hover-border-color: #ddd;\n\n" + "@nav-tabs-justified-link-border-color: #ddd;\n" + "@nav-tabs-justified-active-link-border-color: @body-bg;\n\n" + "//== Pills\n" + "@nav-pills-border-radius: @border-radius-base;\n" + "@nav-pills-active-link-hover-bg: @component-active-bg;\n" + "@nav-pills-active-link-hover-color: @component-active-color;\n\n\n" + "//== Pagination\n" + "//\n" + "//##\n\n" + "@pagination-color: @link-color;\n" + "@pagination-bg: #fff;\n" + "@pagination-border: #ddd;\n\n" + "@pagination-hover-color: @link-hover-color;\n" + "@pagination-hover-bg: @gray-lighter;\n" + "@pagination-hover-border: #ddd;\n\n" + "@pagination-active-color: #fff;\n" + "@pagination-active-bg: @brand-primary;\n" + "@pagination-active-border: @brand-primary;\n\n" + "@pagination-disabled-color: @gray-light;\n" + "@pagination-disabled-bg: #fff;\n" + "@pagination-disabled-border: #ddd;\n\n\n" + "//== Pager\n" + "//\n" + "//##\n\n" + "@pager-bg: @pagination-bg;\n" + "@pager-border: @pagination-border;\n" + "@pager-border-radius: 15px;\n\n" + "@pager-hover-bg: @pagination-hover-bg;\n\n" + "@pager-active-bg: @pagination-active-bg;\n" + "@pager-active-color: @pagination-active-color;\n\n" + "@pager-disabled-color: @pagination-disabled-color;\n\n\n" + "//== Jumbotron\n" + "//\n" + "//##\n\n" + "@jumbotron-padding: 30px;\n" + "@jumbotron-color: inherit;\n" + "@jumbotron-bg: @gray-lighter;\n" + "@jumbotron-heading-color: inherit;\n" + "@jumbotron-font-size: ceil((@font-size-base * 1.5));\n" + "@jumbotron-heading-font-size: ceil((@font-size-base * 4.5));\n\n\n" + "//== Form states and alerts\n" + "//\n" + "//## Define colors for form feedback states and, by default, alerts.\n\n" + "@state-success-text: #3c763d;\n" + "@state-success-bg: #dff0d8;\n" + "@state-success-border: darken(spin(@state-success-bg, -10), 5%);\n\n" + "@state-info-text: #31708f;\n" + "@state-info-bg: #d9edf7;\n" + "@state-info-border: darken(spin(@state-info-bg, -10), 7%);\n\n" + "@state-warning-text: #8a6d3b;\n" + "@state-warning-bg: #fcf8e3;\n" + "@state-warning-border: darken(spin(@state-warning-bg, -10), 5%);\n\n" + "@state-danger-text: #a94442;\n" + "@state-danger-bg: #f2dede;\n" + "@state-danger-border: darken(spin(@state-danger-bg, -10), 5%);\n\n\n" + "//== Tooltips\n" + "//\n" + "//##\n\n" + "//** Tooltip max width\n" + "@tooltip-max-width: 200px;\n" + "//** Tooltip text color\n" + "@tooltip-color: #fff;\n" + "//** Tooltip background color\n" + "@tooltip-bg: #000;\n" + "@tooltip-opacity: .9;\n\n" + "//** Tooltip arrow width\n" + "@tooltip-arrow-width: 5px;\n" + "//** Tooltip arrow color\n" + "@tooltip-arrow-color: @tooltip-bg;\n\n\n" + "//== Popovers\n" + "//\n" + "//##\n\n" + "//** Popover body background color\n" + "@popover-bg: #fff;\n" + "//** Popover maximum width\n" + "@popover-max-width: 276px;\n" + "//** Popover border color\n" + "@popover-border-color: rgba(0,0,0,.2);\n" + "//** Popover fallback border color\n" + "@popover-fallback-border-color: #ccc;\n\n" + "//** Popover title background color\n" + "@popover-title-bg: darken(@popover-bg, 3%);\n\n" + "//** Popover arrow width\n" + "@popover-arrow-width: 10px;\n" + "//** Popover arrow color\n" + "@popover-arrow-color: @popover-bg;\n\n" + "//** Popover outer arrow width\n" + "@popover-arrow-outer-width: (@popover-arrow-width + 1);\n" + "//** Popover outer arrow color\n" + "@popover-arrow-outer-color: fadein(@popover-border-color, 5%);\n" + "//** Popover outer arrow fallback color\n" + "@popover-arrow-outer-fallback-color: darken(@popover-fallback-border-color, 20%);\n\n\n" + "//== Labels\n" + "//\n" + "//##\n\n" + "//** Default label background color\n" + "@label-default-bg: @gray-light;\n" + "//** Primary label background color\n" + "@label-primary-bg: @brand-primary;\n" + "//** Success label background color\n" + "@label-success-bg: @brand-success;\n" + "//** Info label background color\n" + "@label-info-bg: @brand-info;\n" + "//** Warning label background color\n" + "@label-warning-bg: @brand-warning;\n" + "//** Danger label background color\n" + "@label-danger-bg: @brand-danger;\n\n" + "//** Default label text color\n" + "@label-color: #fff;\n" + "//** Default text color of a linked label\n" + "@label-link-hover-color: #fff;\n\n\n" + "//== Modals\n" + "//\n" + "//##\n\n" + "//** Padding applied to the modal body\n" + "@modal-inner-padding: 15px;\n\n" + "//** Padding applied to the modal title\n" + "@modal-title-padding: 15px;\n" + "//** Modal title line-height\n" + "@modal-title-line-height: @line-height-base;\n\n" + "//** Background color of modal content area\n" + "@modal-content-bg: #fff;\n" + "//** Modal content border color\n" + "@modal-content-border-color: rgba(0,0,0,.2);\n" + "//** Modal content border color **for IE8**\n" + "@modal-content-fallback-border-color: #999;\n\n" + "//** Modal backdrop background color\n" + "@modal-backdrop-bg: #000;\n" + "//** Modal backdrop opacity\n" + "@modal-backdrop-opacity: .5;\n" + "//** Modal header border color\n" + "@modal-header-border-color: #e5e5e5;\n" + "//** Modal footer border color\n" + "@modal-footer-border-color: @modal-header-border-color;\n\n" + "@modal-lg: 900px;\n" + "@modal-md: 600px;\n" + "@modal-sm: 300px;\n\n\n" + "//== Alerts\n" + "//\n" + "//## Define alert colors, border radius, and padding.\n\n" + "@alert-padding: 15px;\n" + "@alert-border-radius: @border-radius-base;\n" + "@alert-link-font-weight: bold;\n\n" + "@alert-success-bg: @state-success-bg;\n" + "@alert-success-text: @state-success-text;\n" + "@alert-success-border: @state-success-border;\n\n" + "@alert-info-bg: @state-info-bg;\n" + "@alert-info-text: @state-info-text;\n" + "@alert-info-border: @state-info-border;\n\n" + "@alert-warning-bg: @state-warning-bg;\n" + "@alert-warning-text: @state-warning-text;\n" + "@alert-warning-border: @state-warning-border;\n\n" + "@alert-danger-bg: @state-danger-bg;\n" + "@alert-danger-text: @state-danger-text;\n" + "@alert-danger-border: @state-danger-border;\n\n\n" + "//== Progress bars\n" + "//\n" + "//##\n\n" + "//** Background color of the whole progress component\n" + "@progress-bg: #f5f5f5;\n" + "//** Progress bar text color\n" + "@progress-bar-color: #fff;\n" + "//** Variable for setting rounded corners on progress bar.\n" + "@progress-border-radius: @border-radius-base;\n\n" + "//** Default progress bar color\n" + "@progress-bar-bg: @brand-primary;\n" + "//** Success progress bar color\n" + "@progress-bar-success-bg: @brand-success;\n" + "//** Warning progress bar color\n" + "@progress-bar-warning-bg: @brand-warning;\n" + "//** Danger progress bar color\n" + "@progress-bar-danger-bg: @brand-danger;\n" + "//** Info progress bar color\n" + "@progress-bar-info-bg: @brand-info;\n\n\n" + "//== List group\n" + "//\n" + "//##\n\n" + "//** Background color on `.list-group-item`\n" + "@list-group-bg: #fff;\n" + "//** `.list-group-item` border color\n" + "@list-group-border: #ddd;\n" + "//** List group border radius\n" + "@list-group-border-radius: @border-radius-base;\n\n" + "//** Background color of single list items on hover\n" + "@list-group-hover-bg: #f5f5f5;\n" + "//** Text color of active list items\n" + "@list-group-active-color: @component-active-color;\n" + "//** Background color of active list items\n" + "@list-group-active-bg: @component-active-bg;\n" + "//** Border color of active list elements\n" + "@list-group-active-border: @list-group-active-bg;\n" + "//** Text color for content within active list items\n" + "@list-group-active-text-color: lighten(@list-group-active-bg, 40%);\n\n" + "//** Text color of disabled list items\n" + "@list-group-disabled-color: @gray-light;\n" + "//** Background color of disabled list items\n" + "@list-group-disabled-bg: @gray-lighter;\n" + "//** Text color for content within disabled list items\n" + "@list-group-disabled-text-color: @list-group-disabled-color;\n\n" + "@list-group-link-color: #555;\n" + "@list-group-link-hover-color: @list-group-link-color;\n" + "@list-group-link-heading-color: #333;\n\n\n" + "//== Panels\n" + "//\n" + "//##\n\n" + "@panel-bg: #fff;\n" + "@panel-body-padding: 15px;\n" + "@panel-heading-padding: 10px 15px;\n" + "@panel-footer-padding: @panel-heading-padding;\n" + "@panel-border-radius: @border-radius-base;\n\n" + "//** Border color for elements within panels\n" + "@panel-inner-border: #ddd;\n" + "@panel-footer-bg: #f5f5f5;\n\n" + "@panel-default-text: @gray-dark;\n" + "@panel-default-border: #ddd;\n" + "@panel-default-heading-bg: #f5f5f5;\n\n" + "@panel-primary-text: #fff;\n" + "@panel-primary-border: @brand-primary;\n" + "@panel-primary-heading-bg: @brand-primary;\n\n" + "@panel-success-text: @state-success-text;\n" + "@panel-success-border: @state-success-border;\n" + "@panel-success-heading-bg: @state-success-bg;\n\n" + "@panel-info-text: @state-info-text;\n" + "@panel-info-border: @state-info-border;\n" + "@panel-info-heading-bg: @state-info-bg;\n\n" + "@panel-warning-text: @state-warning-text;\n" + "@panel-warning-border: @state-warning-border;\n" + "@panel-warning-heading-bg: @state-warning-bg;\n\n" + "@panel-danger-text: @state-danger-text;\n" + "@panel-danger-border: @state-danger-border;\n" + "@panel-danger-heading-bg: @state-danger-bg;\n\n\n" + "//== Thumbnails\n" + "//\n" + "//##\n\n" + "//** Padding around the thumbnail image\n" + "@thumbnail-padding: 4px;\n" + "//** Thumbnail background color\n" + "@thumbnail-bg: @body-bg;\n" + "//** Thumbnail border color\n" + "@thumbnail-border: #ddd;\n" + "//** Thumbnail border radius\n" + "@thumbnail-border-radius: @border-radius-base;\n\n" + "//** Custom text color for thumbnail captions\n" + "@thumbnail-caption-color: @text-color;\n" + "//** Padding around the thumbnail caption\n" + "@thumbnail-caption-padding: 9px;\n\n\n" + "//== Wells\n" + "//\n" + "//##\n\n" + "@well-bg: #f5f5f5;\n" + "@well-border: darken(@well-bg, 7%);\n\n\n" + "//== Badges\n" + "//\n" + "//##\n\n" + "@badge-color: #fff;\n" + "//** Linked badge text color on hover\n" + "@badge-link-hover-color: #fff;\n" + "@badge-bg: @gray-light;\n\n" + "//** Badge text color in active nav link\n" + "@badge-active-color: @link-color;\n" + "//** Badge background color in active nav link\n" + "@badge-active-bg: #fff;\n\n" + "@badge-font-weight: bold;\n" + "@badge-line-height: 1;\n" + "@badge-border-radius: 10px;\n\n\n" + "//== Breadcrumbs\n" + "//\n" + "//##\n\n" + "@breadcrumb-padding-vertical: 8px;\n" + "@breadcrumb-padding-horizontal: 15px;\n" + "//** Breadcrumb background color\n" + "@breadcrumb-bg: #f5f5f5;\n" + "//** Breadcrumb text color\n" + "@breadcrumb-color: #ccc;\n" + "//** Text color of current page in the breadcrumb\n" + "@breadcrumb-active-color: @gray-light;\n" + "//** Textual separator for between breadcrumb elements\n" + "@breadcrumb-separator: \"/\";\n\n\n" + "//== Carousel\n" + "//\n" + "//##\n\n" + "@carousel-text-shadow: 0 1px 2px rgba(0,0,0,.6);\n\n" + "@carousel-control-color: #fff;\n" + "@carousel-control-width: 15%;\n" + "@carousel-control-opacity: .5;\n" + "@carousel-control-font-size: 20px;\n\n" + "@carousel-indicator-active-bg: #fff;\n" + "@carousel-indicator-border-color: #fff;\n\n" + "@carousel-caption-color: #fff;\n\n\n" + "//== Close\n" + "//\n" + "//##\n\n" + "@close-font-weight: bold;\n" + "@close-color: #000;\n" + "@close-text-shadow: 0 1px 0 #fff;\n\n\n" + "//== Code\n" + "//\n" + "//##\n\n" + "@code-color: #c7254e;\n" + "@code-bg: #f9f2f4;\n\n" + "@kbd-color: #fff;\n" + "@kbd-bg: #333;\n\n" + "@pre-bg: #f5f5f5;\n" + "@pre-color: @gray-dark;\n" + "@pre-border-color: #ccc;\n" + "@pre-scrollable-max-height: 340px;\n\n\n" + "//== Type\n" + "//\n" + "//##\n\n" + "//** Horizontal offset for forms and lists.\n" + "@component-offset-horizontal: 180px;\n" + "//** Text muted color\n" + "@text-muted: @gray-light;\n" + "//** Abbreviations and acronyms border color\n" + "@abbr-border-color: @gray-light;\n" + "//** Headings small color\n" + "@headings-small-color: @gray-light;\n" + "//** Blockquote small color\n" + "@blockquote-small-color: @gray-light;\n" + "//** Blockquote font size\n" + "@blockquote-font-size: (@font-size-base * 1.25);\n" + "//** Blockquote border color\n" + "@blockquote-border-color: @gray-lighter;\n" + "//** Page header border color\n" + "@page-header-border-color: @gray-lighter;\n" + "//** Width of horizontal description list titles\n" + "@dl-horizontal-offset: @component-offset-horizontal;\n" + "//** Horizontal line color.\n" + "@hr-border: @gray-lighter;"; final Pattern pattern = Pattern.compile(regex, Pattern.MULTILINE); final Matcher matcher = pattern.matcher(string); while (matcher.find()) { System.out.println("Full match: " + matcher.group(0)); for (int i = 1; i <= matcher.groupCount(); i++) { System.out.println("Group " + i + ": " + matcher.group(i)); } } } }

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 Java, please visit: https://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html