modifier

How to use a variable as modifier in a substitution

由 别说谁变了你拦得住时间么 提交于 2019-11-26 22:06:23
问题 Is there a way to use a variable as modifier in a substitution? my $search = 'looking'; my $replace = '"find: $1 ="'; my $modifier = 'ee'; s/$search/$replace/$modifier; I need to use an array of hashes to make bulk search-replace with different modifiers. 回答1: Hm, if I had to do it I would do like this: use warnings; use strict; my @stuff = ( { search => "this", replace => "that", modifier => "g", }, { search => "ono", replace => "wendy", modifier => "i", } ); $_ = "this ono boo this\n"; for

How to set a (UTF8) modifier for RegEx of a RegEx Route in Zend Framework 2?

由 回眸只為那壹抹淺笑 提交于 2019-11-26 21:41:23
问题 I'm having troubles with (german) special characters in URIs and want to try to resolve it with a RegEx Route and a PCRE pattern modifier for UTF-8 u . 'router' => array( 'routes' => array( // ... 'city' => array( 'type' => 'regex', 'options' => array( 'regex' => '/catalog/(?<city>[a-zA-Z0-9_-äöüÄÖÜß]*)\/u', 'defaults' => array( 'controller' => 'Catalog\Controller\Catalog', 'action' => 'list-sports', ), 'spec' => '/catalog/%city%', ), 'may_terminate' => true, ), ), ), But when I set it, the

Pros and cons of package private classes in Java?

由 烂漫一生 提交于 2019-11-26 18:51:29
I am learning Java recently, and I came across the notion of package-private classes, which is the default if we don't specify anything. But then I realized: I seldom see the use of package-private class. Is there a reason for this, e.g., it has serious drawbacks, it is redundant, or simply I am not reading enough? Are there strong arguments for/against its usage? If it is really not useful in most cases, why would it be the default? In what situation should we use package-private in the real world? I.e., when would it become irreplaceable? In other words, what are the major pros and cons of

Perl Regex 'e' (eval) modifier with s///

由 醉酒当歌 提交于 2019-11-26 15:56:28
问题 I'm having a little trouble comprehending this simple use of the /e regex modifier. my $var = 'testing'; $_ = 'In this string we are $var the "e" modifier.'; s/(\$\w+)/$1/ee; print; Returns: "In this string we are testing the "e" modifier." I cannot see why two 'e' modifiers are required. As far as I can see, $1 should capture '$var' from the string and a single 'e' modifier should then be able to replace the variable with its value. I must be misunderstanding something however, since trying

Why preg_replace throws me a “Unknown modifier” error? [duplicate]

由 房东的猫 提交于 2019-11-26 14:29:11
问题 This question already has answers here : Warning: preg_replace(): Unknown modifier ']' (3 answers) Closed 5 months ago . I keep getting this error: Warning: preg_match() [function.preg-match]: Unknown modifier 't' in D:\xampp\htdocs\administrator\components\com_smms\functions\plugin.php on line 235 on: $PageContent = preg_replace($result->module_pregmatch, '', $PageContent); I do a var_dump on the $result->module_pregmatch and I get the following: string '/<title>(.*)</title>/Ui' (length=23)

Pros and cons of package private classes in Java?

由 北战南征 提交于 2019-11-26 06:36:54
问题 I am learning Java recently, and I came across the notion of package-private classes, which is the default if we don\'t specify anything. But then I realized: I seldom see the use of package-private class. Is there a reason for this, e.g., it has serious drawbacks, it is redundant, or simply I am not reading enough? Are there strong arguments for/against its usage? If it is really not useful in most cases, why would it be the default? In what situation should we use package-private in the
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