Initial testing, cerxes-npm

cfg/util/read-args.js

@@ -0,0 +1,46 @@
+function readArgs(args){
+    let result = {
+        switches: new Set(),// Single letter toggles
+        params: new Map(),// Named params/toggles
+        args: [],
+        get: function(...keys){
+            let value;
+            for (let k of keys) {
+                let newValue = result.params.get(k);
+                if(newValue!==undefined) {
+                    value = newValue;
+                } else if (result.switches.has(k)){
+                    value = true;
+                }
+            }
+            return value;
+        }
+    };
+    for(let arg of args){
+        if(arg[0]==='-'){
+            if(arg[1]==='-'){
+                // Full name
+                let argName  = arg.slice(2);
+                let argValue = true;
+                let eqIndex = argName.indexOf("=");
+                if(eqIndex>0){
+                    argValue = argName.slice(eqIndex+1);
+                    try{
+                        argValue = JSON.parse(argValue);
+                    }catch(ex){}
+                    argName = argName.slice(0,eqIndex);
+                }
+                result.params.set(argName, argValue);
+            }else{
+                // Switches
+                let switches = arg.slice(1);
+                for(let l of switches){result.switches.add(l);}
+            }
+        }else{
+            result.args.push(arg);
+        }
+    }
+    return result;
+}
+
+module.exports = readArgs;