regex

问题 From this string: dfasd {{test}} asdhfj {{te{st2}} asdfasd {{te}st3}} I would like to get the following substrings: test, te{st2, te}st3 In other words I want keep everything inside double curly braces including single curly braces . I can't use this pattern: {{(.*)}} because it matches the whole thing between first {{ and last }}: test}} asdhfj {{te{st2}} asdfasd {{te}st3 I managed to get the first two with this regex pattern: {{([^}]*)}} Is there any way to get all three using regex? 回答1:

问题 From this string: dfasd {{test}} asdhfj {{te{st2}} asdfasd {{te}st3}} I would like to get the following substrings: test, te{st2, te}st3 In other words I want keep everything inside double curly braces including single curly braces . I can't use this pattern: {{(.*)}} because it matches the whole thing between first {{ and last }}: test}} asdhfj {{te{st2}} asdfasd {{te}st3 I managed to get the first two with this regex pattern: {{([^}]*)}} Is there any way to get all three using regex? 回答1:

问题 The below regex statement matches when using perl, but it doesn't match when using c++. After reading the "std::regex" class information on cplusplus.com, I might have to use regex_search instead. That's unless, I use the flags within the regex_match. Using the regex_search seems to over complicate a simple match I want to perform. I would like to have the match on 1 line similar to perl. Is there another 1 line approach for performing regex matches in c++? c++ std::string line1 = "interface

问题 Consider the following: $text = 'c c++ c# and other text'; $skills = array('c','c++','c#','java',...); foreach ($skill as $skill) { if (preg_match('/\b'.$skill.'\b/', $text)) { echo $skill.' is matched'; } } In the case of 'c', it matches 'c', 'c#', and 'c++'. I've tried appending assertion (?=\s) or [\s|.] in place of \b towards the end but it needs something similar to \b. I've checked out other posts but doesn't seem to have the exact situation. Thanks! 回答1: The problem is that \b matches

问题 Consider the following: $text = 'c c++ c# and other text'; $skills = array('c','c++','c#','java',...); foreach ($skill as $skill) { if (preg_match('/\b'.$skill.'\b/', $text)) { echo $skill.' is matched'; } } In the case of 'c', it matches 'c', 'c#', and 'c++'. I've tried appending assertion (?=\s) or [\s|.] in place of \b towards the end but it needs something similar to \b. I've checked out other posts but doesn't seem to have the exact situation. Thanks! 回答1: The problem is that \b matches

问题 I have some strings in a python script, they look like <tag1> thisIsSomeText <otherTag>, <tag1>! I want to parse these lines, and replace every tag by a string from a dictionary. Assume my dict looks like: tag1: Hello otherTag: Goodbye Then the output line should look like: Hello thisIsSomeText Goodbye, Hello! As one can see, the tags (and its braces) are replaced. Multiple occurences are possible. In C, I would search for '<', remember its position, search for the '>', do some ugly string

问题 I have some strings in a python script, they look like <tag1> thisIsSomeText <otherTag>, <tag1>! I want to parse these lines, and replace every tag by a string from a dictionary. Assume my dict looks like: tag1: Hello otherTag: Goodbye Then the output line should look like: Hello thisIsSomeText Goodbye, Hello! As one can see, the tags (and its braces) are replaced. Multiple occurences are possible. In C, I would search for '<', remember its position, search for the '>', do some ugly string

问题 Forgive me if this is super simple, but I googled and googled and couldn't find a good example. I'm not that great with regex and just need to valid that an input has more than 1 character (i.e. is not blank). I'm using Angular ng-pattern. <input type="text" ng-model="username" ng-pattern="/regex/"> I need to verify that there as something in the input (not empty). I've used a couple of example, but the issue is once you clear the input, angular is still seeing the pattern as valid. I need it

问题 I have a domain www.domain.com redirected to / in my server. Next I have index.php whith code: header("Location: http://domain.com/v3/"); When I enter mydomain.com I have mydomain.com/v3/ in url. How to remove v3 from Url 回答1: Remove header line from your PHP code since it is doing a redirect and have this lookahead based rule in your root .htaccess : RewriteEngine On RewriteCond %{THE_REQUEST} ^[A-Z]{3,}\s/+v3/([^?\s]*) [NC] RewriteRule ^ /%1 [R=302,L,NE] RewriteRule ^((?!v3/).*)$ /v3/$1 [L

问题 I'm trying to match <!-- Start Comment content spanning several lines here End Comment --> And I figured something like this would do the trick: (<!-- Start Comment).*(End Comment -->) but the . is not matching newlines. How do I get it to recognize my entire block which contains a host of different characters including newlines? 回答1: It doesn't seem that Notepad++ handles newlines very well. This page has some creative workarounds, though: http://www.powercram.com/2009/08/notepad-guide-to