Detailed explanation

Minimatch is a lightweight string mode matching library, which is often used in the mode matching of the file path.It is inspired by a similar pattern matching library -GLOB.This article will introduce the Java class library technical principles of the MINIMATCH framework in detail and provide the necessary Java code examples. The core of Minimatch is to achieve pattern matching by parsing the pattern string into an abstract syntax tree.This grammar tree consists of a series of nodes, and each node represents different parts of a model.Users can define their own pattern rules as needed and use minimatch matching string. In minimatch, there are the following main nodes:: 1. Charnode: It represents a character that can be letters, numbers or symbols.Character nodes can match the corresponding characters or represent the range of characters. 2. WildcardNode: Represents a passing character, including `*`, `?`等.The node of the psychedelic symbol can match any character (`*`) or a single character (`? `). 3. Group node (groupNode): represents a combination of multiple characters or sub -mode.The group node is surrounded by a pair of brackets `()`, which can be used to define priority between mode and sub -mode. 4. NegateNode: It represents a negative operation, start with `!"The reverse node is used to eliminate the matching of certain characters or subcuits. When matching with Minimatch, it matches the string to be matched with the abstract syntax tree.The matching process is realized by recursively traversing the node of the grammar tree. Below is a simple example, showing how to use Minimatch for pattern matching.Suppose we have the following path list: List<String> paths = Arrays.asList( "/usr/local/bin/java", "/var/lib/documents/file.txt", "/usr/local/bin/python", "/usr/local/includes/header.h", "/etc/config.properties" ); Now, we want to find all the paths that start with `/usr/local/bin` and end with` .java`.We can use Minimatch's Java class libraries to facilitate this demand: import com.minimatch.Minimatch; public class Main { public static void main(String[] args) { String pattern = "/usr/local/bin/*.java"; for (String path : paths) { if (Minimatch.match(path, pattern)) { System.out.println(path); } } } } Run the above code, and will output the `/usr/local/bin/java` to meet our mode matching requirements. Through the Java library of Minimatch, we can easily match the string mode.Its simple and easy -to -use interface and flexible pattern definition allows us to quickly match the string matching operations according to different needs.Whether in file path processing or other string mode matching scenarios, Minimatch is a very valuable tool. It is hoped that this article will be helpful to understand the technical principles of Java -class library technology that understands the MINIMATCH framework and can bring some inspiration to your actual development.