1BSON::Regex(3) User Contributed Perl Documentation BSON::Regex(3)
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6 BSON::Regex - BSON type wrapper for regular expressions
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9 version v1.12.2
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12 use BSON::Types ':all';
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14 $regex = bson_regex( $pattern );
15 $regex = bson_regex( $pattern, $flags );
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18 This module provides a BSON type wrapper for a PCRE regular expression
19 and optional flags.
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22 pattern
23 A string containing a PCRE regular expression pattern (not a "qr"
24 object and without slashes). Default is the empty string.
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26 flags
27 A string with regular expression flags. Flags will be sorted and
28 duplicates will be removed during object construction. Supported flags
29 include "imxlsu". Invalid flags will cause an exception. Default is
30 the empty string.
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33 try_compile
34 my $qr = $regexp->try_compile;
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36 Tries to compile the "pattern" and "flags" into a reference to a
37 regular expression. If the pattern or flags can't be compiled, a
38 exception will be thrown.
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40 SECURITY NOTE: Executing a regular expression can evaluate arbitrary
41 code if the re 'eval' pragma is in force. You are strongly advised to
42 read re and never to use untrusted input with "try_compile".
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44 TO_JSON
45 If the "BSON_EXTJSON" option is true, returns a hashref compatible with
46 MongoDB's extended JSON
47 <https://github.com/mongodb/specifications/blob/master/source/extended-
48 json.rst> format, which represents it as a document as follows:
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50 {"$regularExpression" : { pattern: "<pattern>", "options" : "<flags>"} }
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52 If the "BSON_EXTJSON" option is false, an error is thrown, as this
53 value can't otherwise be represented in JSON.
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56 • David Golden <david@mongodb.com>
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58 • Stefan G. <minimalist@lavabit.com>
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61 This software is Copyright (c) 2020 by Stefan G. and MongoDB, Inc.
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63 This is free software, licensed under:
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65 The Apache License, Version 2.0, January 2004
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69perl v5.34.0 2021-07-22 BSON::Regex(3)