Mon 21 Jul 22:43:21 CEST 2025

js/top/module.js

@@ -0,0 +1,133 @@
+/**
+ **      ==============================
+ **       O           O      O   OOOO
+ **       O           O     O O  O   O
+ **       O           O     O O  O   O
+ **       OOOO   OOOO O     OOO  OOOO
+ **       O   O       O    O   O O   O
+ **       O   O       O    O   O O   O
+ **       OOOO        OOOO O   O OOOO
+ **      ==============================
+ **      Dr. Stefan Bosse http://www.bsslab.de
+ **
+ **      COPYRIGHT: THIS SOFTWARE, EXECUTABLE AND SOURCE CODE IS OWNED
+ **                 BY THE AUTHOR(S).
+ **                 THIS SOURCE CODE MAY NOT BE COPIED, EXTRACTED,
+ **                 MODIFIED, OR OTHERWISE USED IN A CONTEXT
+ **                 OUTSIDE OF THE SOFTWARE SYSTEM.
+ **
+ **    $AUTHORS:     Stefan Bosse
+ **    $INITIAL:     (C) 2006-2017 bLAB
+ **    $CREATED:     sbosse on 23-12-15
+ **    $VERSION:     1.3.1
+ **    $RCS:         $Id: module.js,v 1.3 2020/02/03 09:45:01 sbosse Exp sbosse $
+ **
+ **    $INFO:
+ *
+ *      Module management for bundled applications.
+ *
+ *     $ENDINFO
+ */
+
+var CoreModule={};
+CoreModule['buffer']='buffer';
+CoreModule['events']='events';
+CoreModule['util']='util';
+CoreModule['http']='http';
+CoreModule['fs']='fs';
+CoreModule['os']='os';
+CoreModule['net']='net';
+CoreModule['http']='http';
+CoreModule['dgram']='dgram';
+CoreModule['path']='path';
+CoreModule['zlib']='zlib';
+CoreModule['assert']='assert';
+CoreModule['child_process']='child_process';
+CoreModule['string_decoder']='string_decoder';
+
+module.exports= function (paths) {
+  var Fs = require('fs');
+  var Modules = [];
+  var Files = [];
+  var Objects = [];
+  global.FilesEmbedded = [];
+  /*
+  ** Search paths
+  */
+  global.PATH=paths;
+  function FileExtension(filename) {
+    return filename.split('.').pop();
+  }
+  /*
+  ** Search a file
+  */
+  function search(index,file) {
+    if (PATH.length==index) return file;
+    var path=PATH[index];
+    if (Fs.existsSync(path+'/'+file+'.js')) return path+'/'+file+'.js';
+    else if (Fs.existsSync(path+'/'+file)) return path+'/'+file;
+    else return search(index+1,file);
+  }
+  /*
+  ** Load either an embedded (tried first) or an external module.
+  */
+  global.Require = function (module) {
+   try {
+    //console.log(module)
+    if (CoreModule[module]) return require(module);
+    if (Modules[module]) return Modules[module];
+    var file=search(0,module);
+    var filepath=Fs.realpathSync(file);
+    Files.push([module,filepath]);
+    if (FileExtension(filepath)=='json') {
+      var Object = require(file);
+      Objects[module]=Object;
+      return Object;    
+    } else {
+      var Module = require(file);
+      Modules[module]=Module;
+      return Module;
+    }
+   } catch (e) {
+      console.log('Require import of module '+module+' ['+filepath+']  failed: '+e);
+      if (e.name==='SyntaxError' && filepath) {
+         var src=Fs.readFileSync(filepath,'utf8');
+         var Esprima = Require('parser/esprima');
+         try {
+           var ast = Esprima.parse(src, { tolerant: true, loc:true });
+           if (ast.errors && ast.errors.length>0) console.log(" .. "+ast.errors[0]);
+         } catch (e) {
+           if (e.lineNumber) console.log('.. in line '+e.lineNumber) 
+         }
+      }
+      if (e.stack) console.log(e.stack);
+   }
+  };
+  /*
+  ** Look-up an embedded file
+  */
+  global.FileEmbedded = function (path,format) {
+    return FilesEmbedded[path];
+  };
+  /*
+  ** Embedd a file.  Only performed in makeapp...
+  */
+  global.FileEmbedd = function (path,format) {};
+
+  global.open = function(name,context,as) {
+    var module = Require(name);
+    if (!context) context=global;
+    for (var p in module) {
+      context[p] = module[p];
+    };
+    if (as) context[as]=module;
+  }
+  
+  return {
+    Files:Files,
+    FilesEmbedded:FilesEmbedded,
+    Modules:Modules,
+    Objects:Objects
+  }
+}
+