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

/
/
g

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 = "(?<! {5})(\\\".+?\\\": [^\\\\[\\{\\n]+(?:,|\\n))|(?<! {5})(\".+?\": \\{[\\S\\s]+?\\},)|(?<! {5})(\".+?\": \\[[\\S\\s]+?\\],)"; final String string = "{\n" + " \"applicationId\": \"id651979466\",\n" + " \"lastestVersion\": \"19.10.03\",\n" + " \"originalUrlBottomTitle\": \"Nguồn <publisherName>\",\n" + " \"titleUpdate\": \"Bạn đã sử dụng phiên bản cũ!!!\",\n" + " \"messageUpdate\": \"Hãy cập nhật ứng dụng để trải nghiệm các tính năng mới, hấp dẫn.\",\n" + " \"linkUpdate\": \"https://itunes.apple.com/app/id651979466\",\n" + " \"introduce\": {\n" + " \"title\": \"Đối tác chính thức\",\n" + " \"introduceURL\": \"https://app.baomoi.com/publisher/list\"\n" + " },\n" + " \"buttonYes\": \"Cập nhật\",\n" + " \"buttonNo\": \"Để sau\",\n" + " \"statusUpdate\": 0,\n" + " \"enableParse\": true,\n" + " \"enableCrashlytics\": true,\n" + " \"livescoreUrl\": \"https://baomoi.com/soccer/app\",\n" + " \"commentCollapseMin\": 7,\n" + " \"shareZalo\": true,\n" + " \"loginFacebook\": false,\n" + " \"shareFacebook\": true,\n" + " \"shareFacebookMess\": true,\n" + " \"zal\": true,\n" + " \"zalInterval\": 259200,\n" + " \"userLoZalInterval\": 86400,\n" + " \"show_comment_time_limit\": 86400,\n" + " \"enableWebm\": true,\n" + " \"enableRenderAvatarUserName\": true,\n" + " \"avatarDefaultNames\": [\n" + " \"default\"\n" + " ],\n" + " \"logArticles\": 3,\n" + " \"logVideos\": 2,\n" + " \"show_feed_article_des\": false,\n" + " \"inapp_noti_default_headline\": \"Báo Mới\",\n" + " \"QoSLogReqLimit\": 50,\n" + " \"QoSLogTimeLimit\": 0,\n" + " \"QoSLogTimeLimitImages\": 0,\n" + " \"impsLogTime\": 1000,\n" + " \"impsLogSize\": 20,\n" + " \"impsPollLogSize\": 1,\n" + " \"timeReloadAds\": 5,\n" + " \"defaultMode\": 0,\n" + " \"defaultModeTablet\": 0,\n" + " \"defaultModeIP5\": 1,\n" + " \"maxArticles\": 1000,\n" + " \"maxVideos\": 200,\n" + " \"maxHotComments\": 3,\n" + " \"timeReloadApp\": 1800,\n" + " \"smallPreset\": \"a300,w200_r4x3,a400x\",\n" + " \"mediumPreset\": \"a400,w200_r4x3,a500x\",\n" + " \"largePreset\": \"a500,w300_r4x3,a700x\",\n" + " \"iPadPreset\": \"a700,w400_r4x3,a800x\",\n" + " \"iPX_listArticleFontSize\": \"18,20,22\",\n" + " \"iPX_feedArticleFontSize\": \"18,20,22\",\n" + " \"iPX_listTitleFontSize\": 17,\n" + " \"iPX_feedTitleFontSize\": 19,\n" + " \"iP6_listArticleFontSize\": \"18,20,22\",\n" + " \"iP6_feedArticleFontSize\": \"18,20,22\",\n" + " \"iP6_listTitleFontSize\": 18,\n" + " \"iP6_feedTitleFontSize\": 20,\n" + " \"iP6P_listArticleFontSize\": \"18,20,22\",\n" + " \"iP6P_feedArticleFontSize\": \"18,20,22\",\n" + " \"iP6P_listTitleFontSize\": 18,\n" + " \"iP6P_feedTitleFontSize\": 20,\n" + " \"iPad_listArticleFontSize\": \"22,24,26\",\n" + " \"iPad_feedArticleFontSize\": \"24,26,28\",\n" + " \"iPad_listTitleFontSize\": 24,\n" + " \"iPad_feedTitleFontSize\": 26,\n" + " \"iP5_listArticleFontSize\": \"18,20,22\",\n" + " \"iP5_feedArticleFontSize\": \"20,22,24\",\n" + " \"iP5_listTitleFontSize\": 18,\n" + " \"iP5_feedTitleFontSize\": 22,\n" + " \"pageRequestCounter\": 15,\n" + " \"showCounter\": true,\n" + " \"showLastestNewsButton\": true,\n" + " \"showSlideBanner\": false,\n" + " \"videoFormat\": 0,\n" + " \"allowPreloadVideo\": true,\n" + " \"wifi_chunkPreloadVideo\": 1,\n" + " \"3g_chunkPreloadVideo\": 0,\n" + " \"commentHints\": \"Bình luận phải có ít nhất 3 chữ|Bình luận phải dùng tiếng Việt có dấu.|Bình luận không nói tục, chửi bậy.|Bình luận không chứa liên kết, quảng cáo.\",\n" + " \"feedName\": \"Theo dõi\",\n" + " \"feedThumbURL\": [\n" + " \"https://baomoi-static.zadn.vn/Uploaded/AppFeedThumb/feedthumb1.jpg\",\n" + " \"https://baomoi-static.zadn.vn/Uploaded/AppFeedThumb/feedthumb2.jpg\",\n" + " \"https://baomoi-static.zadn.vn/Uploaded/AppFeedThumb/feedthumb3.jpg\"\n" + " ],\n" + " \"feedEmptyScreenMsg\": \"Theo dõi thêm nguồn \\nđể có thêm tin trong danh sách\",\n" + " \"defaultZoneNewsTab\": \"c_0\",\n" + " \"fixedZones\": \"Tin nóng|c_0,Tin mới|c_-1\",\n" + " \"defaultZones\": \"Bóng đá VN|c_87,Bóng đá QT|c_86,Độc & Lạ|c_79,Tình yêu|c_139,Giải trí|c_52,Thế giới|c_119,Pháp luật|c_58,Xe 360|c_145,Công Nghệ|c_53,Ẩm thực|c_84,Làm đẹp|c_138,Sức khỏe|c_82,Du lịch|c_137\",\n" + " \"allZones\": \"Tin mới|c_-1,Bóng đá VN|c_87,Bóng đá QT|c_86,Độc & Lạ|c_79,Tình yêu|c_139,Giải trí|c_52,Thế giới|c_119,Pháp luật|c_58,Xe 360|c_145,Công Nghệ|c_53,Ẩm thực|c_84,Làm đẹp|c_138,Sức khỏe|c_82,Du lịch|c_137,Nhà đất|c_147,Thời sự|c_144,Thiết bị - Phần cứng|c_136,Kinh tế|c_45,Giáo dục|c_59,Không gian - Kiến trúc|c_150,Thời trang|c_72\",\n" + " \"updatedZones\": \"Bóng đá VN|c_87\",\n" + " \"excludedZones\": \"\",\n" + " \"changedZones\": \"k_Biển Đông|top_228,st_5|top_228\",\n" + " \"regions\": \"Hà Nội|r_Hà Nội|29,TP. HCM|r_TP. HCM|50,An Giang|r_An Giang|67,Bắc Giang|r_Bắc Giang|98,Bắc Kạn|r_Bắc Kạn|97,Bạc Liêu|r_Bạc Liêu|94,Bắc Ninh|r_Bắc Ninh|99,Bến Tre|r_Bến Tre|71,Bình Định|r_Bình Định|77,Bình Dương|r_Bình Dương|61,Bình Phước|r_Bình Phước|93,Bình Thuận|r_Bình Thuận|86,BR-VT|r_BR-VT|72,Cà Mau|r_Cà Mau|69,Cần Thơ|r_Cần Thơ|65,Cao Bằng|r_Cao Bằng|11,Đà Nẵng|r_Đà Nẵng|43,Đăk Lăk|r_Đăk Lăk|47,Đăk Nông|r_Đăk Nông|48,Điện Biên|r_Điện Biên|27,Đồng Nai|r_Đồng Nai|60,Đồng Tháp|r_Đồng Tháp|66,Gia Lai|r_Gia Lai|81,Hà Giang|r_Hà Giang|23,Hà Nam|r_Hà Nam|90,Hà Tĩnh|r_Hà Tĩnh|38,Hải Dương|r_Hải Dương|34,Hải Phòng|r_Hải Phòng|15,Hậu Giang|r_Hậu Giang|95,Hòa Bình|r_Hòa Bình|28,Hưng Yên|r_Hưng Yên|89,Khánh Hòa|r_Khánh Hòa|79,Kiên Giang|r_Kiên Giang|68,Kon Tum|r_Kon Tum|82,Lai Châu|r_Lai Châu|25,Lâm Đồng|r_Lâm Đồng|49,Lạng Sơn|r_Lạng Sơn|12,Lào Cai|r_Lào Cai|24,Long An|r_Long An|62,Nam Định|r_Nam Định|18,Nghệ An|r_Nghệ An|37,Ninh Bình|r_Ninh Bình|35,Ninh Thuận|r_Ninh Thuận|85,Phú Thọ|r_Phú Thọ|19,Phú Yên|r_Phú Yên|78,Quảng Bình|r_Quảng Bình|73,Quảng Nam|r_Quảng Nam|92,Quảng Ngãi|r_Quảng Ngãi|76,Quảng Ninh|r_Quảng Ninh|14,Quảng Trị|r_Quảng Trị|74,Sóc Trăng|r_Sóc Trăng|83,Sơn La|r_Sơn La|26,Tây Ninh|r_Tây Ninh|70,Thái Bình|r_Thái Bình|17,Thái Nguyên|r_Thái Nguyên|20,Thanh Hóa|r_Thanh Hóa|36,Tiền Giang|r_Tiền Giang|63,Trà Vinh|r_Trà Vinh|84,TT Huế|r_TT Huế|75,Tuyên Quang|r_Tuyên Quang|22,Vĩnh Long|r_Vĩnh Long|64,Vĩnh Phúc|r_Vĩnh Phúc|88,Yên Bái|r_Yên Bái|21\",\n" + " \"domainIcon\": \"https://baomoi-static.zadn.vn/icon_publishers\",\n" + " \"topPublishers\": \"VietnamNet|p_23,Tiền Phong|p_20,VTC News|p_83,Zing|p_119,VOV|p_65,VietnamPlus|p_293,PLO|p_114,Infonet|p_240\",\n" + " \"defaultVideoZones\": [\n" + " {\n" + " \"zoneName\": \"Mới\",\n" + " \"zoneId\": \"v_-1\",\n" + " \"images\": [\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/New/v_-1_1_20181031.jpg\",\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/New/v_-1_2_20181031.jpg\",\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/New/v_-1_3_20181031.jpg\"\n" + " ]\n" + " },\n" + " {\n" + " \"zoneName\": \"Ahihi\",\n" + " \"zoneId\": \"v_12\",\n" + " \"images\": [\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/Ahihi/v_12_1_20181031_fixed.jpg\",\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/Ahihi/v_12_2_20181031_fixed.jpg\",\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/Ahihi/v_12_3_20181031_fixed.jpg\"\n" + " ]\n" + " },\n" + " {\n" + " \"zoneName\": \"OMG\",\n" + " \"zoneId\": \"v_47\",\n" + " \"images\": [\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/OMG/v_47_1_20181031.jpg\",\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/OMG/v_47_2_20181031.jpg\",\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/OMG/v_47_3_20181031.jpg\"\n" + " ]\n" + " },\n" + " {\n" + " \"zoneName\": \"2Tek\",\n" + " \"zoneId\": \"v_43\",\n" + " \"images\": [\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/Hightek/v_43_1_20181031.jpg\",\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/Hightek/v_43_2_20181031.jpg\",\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/Hightek/v_43_3_20181031.jpg\"\n" + " ]\n" + " },\n" + " {\n" + " \"zoneName\": \"Bóng đá\",\n" + " \"zoneId\": \"v_21\",\n" + " \"images\": [\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/BongDa/v_21_1_20181108.jpg\",\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/BongDa/v_21_2_20181108.jpg\",\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/BongDa/v_21_3_20181108.jpg\"\n" + " ]\n" + " },\n" + " {\n" + " \"zoneName\": \"Cute\",\n" + " \"zoneId\": \"v_40\",\n" + " \"images\": [\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/Cute/v_40_1_20181031.jpg\",\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/Cute/v_40_2_20181031.jpg\",\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/Cute/v_40_3_20181031.jpg\"\n" + " ]\n" + " },\n" + " {\n" + " \"zoneName\": \"Showbiz\",\n" + " \"zoneId\": \"v_6\",\n" + " \"images\": [\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/Showbiz/v_6_1_20181226.jpg\",\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/Showbiz/v_6_2_20181226.jpg\",\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/Showbiz/v_6_3_20181226.jpg\"\n" + " ]\n" + " },\n" + " {\n" + " \"zoneName\": \"Sống\",\n" + " \"zoneId\": \"v_37\",\n" + " \"images\": [\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/Ngam/v_37_1_20181031.jpg\",\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/Ngam/v_37_2_20181031.jpg\",\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/Ngam/v_37_3_20181031.jpg\"\n" + " ]\n" + " },\n" + " {\n" + " \"zoneName\": \"Lifestyle\",\n" + " \"zoneId\": \"v_16\",\n" + " \"images\": [\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/LifeStyle/v_16_1_20181031.jpg\",\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/LifeStyle/v_16_2_20181031.jpg\",\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/LifeStyle/v_16_3_20181031.jpg\"\n" + " ]\n" + " },\n" + " {\n" + " \"zoneName\": \"News\",\n" + " \"zoneId\": \"v_1\",\n" + " \"images\": [\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/News/v_1_1_20181031.jpg\",\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/News/v_1_2_20181031.jpg\",\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/News/v_1_3_20181031.jpg\"\n" + " ]\n" + " },\n" + " {\n" + " \"zoneName\": \"Top\",\n" + " \"zoneId\": \"v_0\",\n" + " \"images\": [\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/Top/v_0_1_20181031.jpg\",\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/Top/v_0_2_20181031.jpg\",\n" + " \"https://baomoi-static.zadn.vn/Uploaded/VideoSubTabImgs/Top/v_0_3_20181031.jpg\"\n" + " ]\n" + " }\n" + " ],\n" + " \"pubProfileTabsName\": \"1|Tổng hợp,9|Video,13|Poll,15|Q&A\",\n" + " \"logChannels\": 2,\n" + " \"maxChannelContents\": 10,\n" + " \"channelFontSize\": \"13,14,14\",\n" + " \"articleVideoMode\": 1,\n" + " \"articleViewMode\": 1,\n" + " \"tapForSoundShowingTime\": 1,\n" + " \"tapForSoundText\": \"Bấm video để mở tiếng\",\n" + " \"numberOfInsertedArticles\": 3,\n" + " \"recommendListRefreshInterval\": 1800000,\n" + " \"showRecommendGroup\": false,\n" + " \"recommendGroupName\": \"CÓ THỂ BẠN QUAN TÂM\",\n" + " \"recommendGroupBtnText\": \"Xem thêm\",\n" + " \"suggestReplyCondition\": 3,\n" + " \"hideArticleReasonsDefault\": \"Bạo lực|content,Đồi trụy|content,Phản cảm|content,Xuyên tạc|content,Kỳ thị địa phương|content\",\n" + " \"popupHideArticleMsg\": \"Vui lòng chọn các nguyên nhân khiến bạn không thích bài viết này để chúng tôi có thể đề xuất tin cho bạn tốt hơn\",\n" + " \"reportArticleReasons\": \"Tin gốc đã gỡ|original_removed,Tin gốc đã cập nhật|original_updated,Bạo lực|content,Đồi trụy|content,Phản cảm|content,Xuyên tạc|content,Kỳ thị địa phương|content,Ý kiến khác...|other\",\n" + " \"popupReportArticleMsg\": \"Vui lòng chọn các nguyên nhân bạn muốn báo cáo nội dung bài viết này\",\n" + " \"reportVideoReasons\": \"Tin gốc đã gỡ|original_removed,Tin gốc đã cập nhật|original_updated,Bạo lực|content,Đồi trụy|content,Phản cảm|content,Xuyên tạc|content,Kỳ thị địa phương|content,Ý kiến khác...|other\",\n" + " \"popupReportVideoMsg\": \"Vui lòng chọn các nguyên nhân bạn muốn báo cáo nội dung video này\",\n" + " \"reportCommentReasons\": \"Bạo lực|comment,Đồi trụy|comment,Phản cảm|comment,Xuyên tạc|comment,Kỳ thị địa phương|comment,Spam|comment,Ý kiến khác...|other\",\n" + " \"popupReportCommentMsg\": \"Vui lòng chọn các nguyên nhân báo xấu bình luận này của người dùng %s\",\n" + " \"stepToShowTripleCell\": 0,\n" + " \"appNavBarBg\": \"https://baomoi-static.zadn.vn/Uploaded/Bao_BD/nav_bar_bg_default@3x.png\",\n" + " \"nativeAdsReportMessage\": \"Chúng tôi sẽ cố gắng hạn chế hiển thị quảng cáo này đến bạn.\",\n" + " \"nativeAdsReportPopupMsg\": \"Vui lòng chọn các nguyên nhân báo xấu quảng cáo này\",\n" + " \"articleVideoAutoPlay\": true,\n" + " \"listVideoAutoPlay\": true,\n" + " \"listVideoAutoPlayNext\": true,\n" + " \"listTopCmtArticleCondition\": \"50,200,500\",\n" + " \"replyLoadMoreAmount\": 10,\n" + " \"articleTopCommentGroup\": true,\n" + " \"coverageEnable\": true,\n" + " \"articleCmtBoxHiddenEnable\": true,\n" + " \"articleViewCloseBtnCondition\": 2,\n" + " \"sectionBoxesEnable\": [\n" + " 0,\n" + " 1,\n" + " 2,\n" + " 3,\n" + " 4,\n" + " 10,\n" + " 11,\n" + " 20,\n" + " 30,\n" + " 40\n" + " ],\n" + " \"content_type\": {\n" + " \"article\": [\n" + " 1\n" + " ],\n" + " \"video\": [\n" + " 9\n" + " ],\n" + " \"topic\": [\n" + " 5,\n" + " 6,\n" + " 7\n" + " ],\n" + " \"qaQuestion\": [\n" + " 15\n" + " ],\n" + " \"qaAnswer\": [\n" + " 16\n" + " ],\n" + " \"poll\": [\n" + " 13\n" + " ],\n" + " \"comment\": [\n" + " 18\n" + " ]\n" + " },\n" + " \"qaHistorySize\": 40\n" + " }"; final Pattern pattern = Pattern.compile(regex); 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