regex

问题 I want to replace all anchor tags within a text with their href value, but my pattern does not work right. $str = 'This is a text with multiple anchor tags. This is the first one: <a href="https://www.link1.com/" title="Link 1">Link 1</a> and this one the second: <a href="https://www.link2.com/" title="Link 2">Link 2</a> after that a lot of other text. And here the 3rd one: <a href="https://www.link3.com/" title="Link 3">Link 3</a> Some other text.'; $test = preg_replace("/<a\s.+href=['|\"]([

问题 I want to replace all anchor tags within a text with their href value, but my pattern does not work right. $str = 'This is a text with multiple anchor tags. This is the first one: <a href="https://www.link1.com/" title="Link 1">Link 1</a> and this one the second: <a href="https://www.link2.com/" title="Link 2">Link 2</a> after that a lot of other text. And here the 3rd one: <a href="https://www.link3.com/" title="Link 3">Link 3</a> Some other text.'; $test = preg_replace("/<a\s.+href=['|\"]([

问题 I want to replace all anchor tags within a text with their href value, but my pattern does not work right. $str = 'This is a text with multiple anchor tags. This is the first one: <a href="https://www.link1.com/" title="Link 1">Link 1</a> and this one the second: <a href="https://www.link2.com/" title="Link 2">Link 2</a> after that a lot of other text. And here the 3rd one: <a href="https://www.link3.com/" title="Link 3">Link 3</a> Some other text.'; $test = preg_replace("/<a\s.+href=['|\"]([

问题 There is a field which accepts a-zA-Z for which I am using regEx which works fine as /^[a-zA-Z\s]+$/ Now field should also except all chars except &,<,> I have modified the regEx to support this change and new regEx is /^[a-zA-Z\s]+[/!@#$%^&*()]+$/ but looks like its not working.... Can someone advise what is wrong am I doing ? Also, instead of adding all allowed special characters, can we add only special characters which are not allowed in RegEX ? ===========================================

问题 There is a field which accepts a-zA-Z for which I am using regEx which works fine as /^[a-zA-Z\s]+$/ Now field should also except all chars except &,<,> I have modified the regEx to support this change and new regEx is /^[a-zA-Z\s]+[/!@#$%^&*()]+$/ but looks like its not working.... Can someone advise what is wrong am I doing ? Also, instead of adding all allowed special characters, can we add only special characters which are not allowed in RegEX ? ===========================================

问题 This question already has an answer here : What is proper way to test if the input is Korean or Chinese using JavaScript? (1 answer) Closed 2 years ago . How do you find Korean letters using regex in JavaScript? 回答1: You can use the following regex const re = /[\u3131-\uD79D]/ugi This is the code table that I referenced: http://memory.loc.gov/diglib/codetables/9.3.html Try it yourself: const re = /[\u3131-\uD79D]/ugi console.log("abcde".match(re)) // null console.log("안녕".match(re)) // ["안",

问题 This question already has an answer here : What is proper way to test if the input is Korean or Chinese using JavaScript? (1 answer) Closed 2 years ago . How do you find Korean letters using regex in JavaScript? 回答1: You can use the following regex const re = /[\u3131-\uD79D]/ugi This is the code table that I referenced: http://memory.loc.gov/diglib/codetables/9.3.html Try it yourself: const re = /[\u3131-\uD79D]/ugi console.log("abcde".match(re)) // null console.log("안녕".match(re)) // ["안",

问题 I am trying to setup a wiremock stub that will return a 400 error if any field has a null value in the json payload. Basically to simulate a Bad Request. I've been trying with a regex that matches any lowercase string for the json key but it doesn't seem to like it. I can't find any examples of what I want online so not sure if it's even possible. My Bad Request body: { "cat": null, "dog": { "id": 1344 }, "horse": { "id": 1 }, "fish": 1 } My Stub: wireMockServer.stubFor(post(urlEqualTo("

问题 Below is the what I have tried The sed command has to change the 3rd line's 3rd and 4th columns and intent is to change only line starting with sox4d2 . File content : sox4d4 ;/appl/m4d4/current ;TEXTMX40 ;TEXTMX40 ; sox4d5 ;/appl/m4d5/current ;TEXTMX40 ;TEXTMX40 ; sox4d2 ;/appl/m4d2/current ;TEXTMX40 ;TEXTMX40 ; Expected content sox4d4 ;/appl/m4d4/current ;TEXTMX40 ;TEXTMX40 ; sox4d5 ;/appl/m4d5/current ;TEXTMX40 ;TEXTMX40 ; sox4d2 ;/appl/m4d2/current ;TEXTM30 ;TEXTM30 ; I would like to

问题 I have a bizarre situation where positive lookahead works as expected but negative lookahead doesn't. Please take a look at the following code: <?php $tweet = "RT @Startup_Collab: @RiseOfRest is headed to OMA & LNK to #showcase our emerging #startup ecosystem. Learn more! https://example.net #Riseof…"; $patterns=array( '/#\w+(?=…$)/', ); $tweet = preg_replace_callback($patterns,function($m) { switch($m[0][0]) { case "#": return strtoupper($m[0]); break; } },$tweet); echo $tweet; I want to