{"id":7665,"date":"2013-04-26T10:55:25","date_gmt":"2013-04-26T15:55:25","guid":{"rendered":"http:\/\/jianmingli.com\/wp\/?p=7665"},"modified":"2021-09-10T11:11:28","modified_gmt":"2021-09-10T16:11:28","slug":"regular-expression-2","status":"publish","type":"post","link":"https:\/\/jianmingli.com\/wp\/?p=7665","title":{"rendered":"Regular Expression"},"content":{"rendered":"
\n

Contents<\/h2>\n
    \n\t
  1. \n\t\tSimple<\/a>\n\t<\/li>\n\t
  2. \n\t\tCharacters<\/a>\n\t<\/li>\n\t
  3. \n\t\tRepetitions<\/a>\n\t<\/li>\n\t
  4. \n\t\tGroups<\/a>\n\t<\/li>\n\t
  5. \n\t\tSpecial Characters<\/a>\n\t<\/li>\n\t
  6. \n\t\tPositions<\/a>\n\t<\/li>\n\t
  7. \n\t\tAlternatives<\/a>\n\t<\/li>\n\t
  8. \n\t\tSubstitutions<\/a>\n\t<\/li>\n\t
  9. \n\t\tRegEx Tools<\/a>\n\t<\/li>\n\t
  10. \n\t\tReferences<\/a>\n\t<\/li>\n<\/ol>\n<\/ol>\n<\/ol>\n<\/div>\n
     <\/div>\n

    Simple<\/h3><\/span>\n
    \r\n*\tany string, 0 or more\r\n+\tone or more\r\n?\tany single character\r\n.\tany one char\r\n^\tbeginning of line\r\n$\tend of line\r\n^$\tblank line\r\n[  ]\tset of characters\r\n[^]\tnot in set of characters\r\n\\\tescape character\r\n\\{\\}\t# of occurances [0-9]\\{5\\}\r\n\\{min,max\\}\r\n()\tencloses groups of REs\r\n|\tor\r\n<\/pre>\n
    Characters<\/h3><\/span>\n
    \"\"<\/a><\/h6><\/span>\n
    Repetitions<\/h3><\/span>\n
    \"\"<\/a><\/h6><\/span>\n
    Groups<\/h3><\/span>\n
    \"\"<\/a><\/h6><\/span>\n
    * Back reference a group:<\/p>\n
    \"\"<\/a><\/h6><\/span>\n
    Special Characters<\/h3><\/span>\n
    \"\"<\/a><\/h6><\/span>\n
    Positions<\/h3><\/span>\n
    \"\"<\/a><\/h6><\/span>\n
    Alternatives<\/h3><\/span>\n
    * One or Two<\/p>\n
    \r\nOne|Two\r\n<\/pre>\n
    Substitutions<\/h3><\/span>\n
    \"\"<\/a><\/h6><\/span>\n
    RegEx Tools<\/h3><\/span>\n
    * regexstorm.net\/tester<\/a>
    \n*     http:\/\/gskinner.com\/RegExr\/<\/a>
    \n*     Expresso<\/a><\/p>\n
    References<\/h3><\/span>\n
    * http:\/\/regexstorm.net\/reference<\/a>
    \n*     http:\/\/www.regular-expressions.info<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
    Simple * any string, 0 or more + one or more ? any single character . any one char ^ beginning of line $ end of line ^$ blank line [ ] set of characters [^] not in set of … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[133],"tags":[607],"class_list":["post-7665","post","type-post","status-publish","format-standard","hentry","category-regex","tag-regex"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p8cRUO-1ZD","_links":{"self":[{"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=\/wp\/v2\/posts\/7665","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7665"}],"version-history":[{"count":5,"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=\/wp\/v2\/posts\/7665\/revisions"}],"predecessor-version":[{"id":12765,"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=\/wp\/v2\/posts\/7665\/revisions\/12765"}],"wp:attachment":[{"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7665"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7665"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7665"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}