Regular Expressions 101

Community Patterns

1...34567...884

Parse @ACTIONTAG from text containing params as JSON

1

Regular Expression
PCRE2 (PHP >=7.3)

/
(?(DEFINE) (?<tagnames> @CUSTOM-AT-1 | @CUSTOM-AT-2) (?<number> -? (?= [1-9]|0(?!\d) ) \d+ (\.\d+)? ([eE] [+-]? \d+)? ) (?<boolean> true | false | null ) (?<string> \" ([^\"\\\\]* | \\\\ [\"\\\\bfnrt\/] | \\\\ u [0-9a-f]{4} )* \" ) (?<array> \[ (?: (?&json) (?: , (?&json) )* )? \s* \] ) (?<pair> \s* (?&string) \s* : (?&json) ) (?<object> \{ (?: (?&pair) (?: , (?&pair) )* )? \s* \} ) (?<fieldname> [a-zA-Z0-9\_\-]+ ) (?<json> \s* (?: (?&number) | (?&boolean) | (?&string) | (?&array) | (?&object) ) ) (?<fieldlist> (?: (?&fieldname) (?: , (?&fieldname) )+ )+ ) ) (?<actiontag> (?&tagnames) ) (?:\= (?'params' (?: (?'match_list'(?&fieldlist)) | (?'match_json'(?&json)) | (?'match_string'(?:[[:alnum:]\_\-]+)) ) ) )
/
mixg

Description

A parser for actiontags (in the format of <code>@FOO=BAR or @FOO={"param":"bar"}</code>. Returns the match array with the key equal to the tag and an array containing keys of 'params, params_json and params_text'

Based on: https://regex101.com/r/fL2rM8/5

Submitted by anonymous - 3 months ago