init

2024-02-27 16:54:41 +08:00
commit 76f10255fe
51 changed files with 14240 additions and 0 deletions
@@ -0,0 +1,78 @@
+module.exports = class CliCmdLine {
+
+    /**
+     * 带值的命令格式
+     * @param parser 解析器
+     * @param cmdLine 命令描述格式
+     * @param flags 标记
+     * @param params 参数
+     * @param position 位置参数
+     */
+    constructor(parser, cmdLine, flags, params, position) {
+        this.parser = parser
+        this.cmdline = cmdLine
+        this.flags = new Set([])
+        this.params = {}
+
+        let i = 0;
+        for ( let pname in cmdLine.params ) {
+            let param = cmdLine.params[pname];
+            if ( param.isFlag ) {
+                if ( param.needValue ){
+                    if ( params[pname] ) {
+                        this.params[pname] = params[pname]
+                    } else {
+                        if ( ! param.isOptional ) {
+                            throw "命令解析错误，缺少必填标记参数。" + pname
+                        }
+                    }
+                } else {
+                    if ( flags.has(pname) ) {
+                        this.flags.add( pname )
+                    } else {
+                        if ( ! param.isOptional ) {
+                            throw "命令解析错误，缺少必填标记。" + pname
+                        }
+                    }
+                }
+            } else {
+                if (  i < position.length ) {
+                    this.params[ pname ] = position[ i++ ] ;
+                } else  {
+                    if ( ! param.isOptional ) {
+                        throw "命令解析错误，缺少必填位置参数。" + pname;
+                    }
+                }
+            }
+        }
+    }
+
+
+    /**
+     * 是否已经绑定了回调函数？
+     */
+    canEval(){
+        return this.parser.canEval( this )
+    }
+
+    async eval(params){
+        return this.parser.eval( this )
+    }
+
+    getParamValue(name, def){
+        if ( name.startsWith("--") ) {
+            name = name.substring(2);
+        }
+        let v = this.params[ name ];
+        if ( null == v ) {
+            return def
+        } else {
+            return v;
+        }
+    }
+
+    hasFlag(name){
+        return this.flags.has(name)
+    }
+
+}