Tag：Matching @
-
Time：2020-11-26
But the official documents don’t say that. So start the test: the string to be matched is shortened until it is reduced to 1 / 5 of the original, so it is more certain. Google search, and finally found a solution: in the php.ini I put it in the first line pcre.backtrack_limit=-1 Use preg again_ […]
-
Time：2020-10-7
One day, it was monitored that the CPU utilization rate of Mongo database was much higher. After checking, it was found that it was caused by the following statements: db.example_collection.find({ “idField” : { “$regex” : “123456789012345678” } , “dateField” : { “$regex” : “2019/10/10” }}) Usually, when I encounter this situation, my first reaction is […]
-
Time：2020-10-3
This article mainly introduces the Java switch multi value matching operation details, the article introduces in detail through the example code, which has a certain reference learning value for everyone’s study or work, and friends in need can refer to it We all know that switch is used to take process branches, and in most […]
-
Time：2020-9-1
The first time I encountered this problem, I wrote code highlight about two years ago. From then on, there are three generations of solutions. Gaga. I think it’s getting better and better first generation: //At the end of this habit, I didn’t know how to write regular quotation marks //For example, if the literal value […]
-
Time：2020-5-20
In this paper, the example describes JS using regular subexpressions to match the first letter and the last letter of the same word. Share with you for your reference. The specific implementation method is as follows: Copy codeThe code is as follows: <html> <head> <script type=”text/javascript”>//Subexpression instance: find word with same initial and ending function […]
-
Time：2020-4-24
This paper gives an example of the usage of regular expression in go language. To share with you for your reference, as follows: The regular expression of go language is very simple to use. Example code: Copy codeThe code is as follows: package test import ( “fmt” “regexp” ) func RegixBase() { […]
-
Time：2020-2-27
There have been many articles about regular expression introduction. As we use regular expression more and more, we want to optimize performance and reduce our regular expression writing matching bug. We have to learn more about regular expression execution. Let’s learn and analyze the regular expression execution process. We will use the regexbuddy test tool […]
-
Time：2019-12-16
This article is from the ltp.net knowledge base. The form of regular expression is generally as follows: /love/ The part between the “/” delimiters is the pattern to be matched in the target object. The user only needs to put the pattern content of the matching object into the “/” delimiter. In order to enable […]
-
Time：2019-11-17
Python regular expression matches numbers Phone number: \ D {3}- \ D {8}| \ D {4}- \ D {7} QQ No.: [1-9] [0-9] {4,} China Postal Code: [1-9] \ D {5} (?)! (d)ID card: \ D {15}| \ D {18}IP address:+ [1-9] \ d * positive integer-[1-9] \ d * negative integer-? [1-9] \ d […]
-
Time：2019-10-16
A long time ago, articles were migrated. In JavaScript, regular expressions are also objects. This pattern can be used for regexp’s exec and test methods as well as string’s match, replace, search, and split methods. Create regular expression The first uses regular expression literals. //example Var re = / A / I g m; // […]
-
Time：2019-8-3
This article gives an example of how to match a single character in a regular expression tutorial. Share for your reference, as follows: Note: In all examples, the matching results of regular expressions are included in the source text.【and】Among them, some examples will be implemented in Java, if it is the use of regular expressions […]
-
Time：2019-8-2
This paper illustrates the method of matching a set of characters in the regular expression tutorial. Share for your reference, as follows: Note: In all examples, the matching results of regular expressions are included in the source text.【and】Among them, some examples will be implemented in Java, if it is the use of regular expressions in […]
