bb

Author: hcchengithub

Untitled.ipynb

@@ -0,0 +1,63 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "reDef unknown\n",
+      "reDef \\\n"
+     ]
+    }
+   ],
+   "source": [
+    "import peforth\n",
+    "peforth.dictate(r'''\n",
+    "\\ Now we redefine the 'unknown' command that was do-nothing by default\n",
+    ": unknown ( token -- thing Y|N) // Try to find the unknown token in __main__\n",
+    "  py> getattr(sys.modules['__main__'],pop(),\"Ûnknôwn\") \n",
+    "  py> str(tos())==\"Ûnknôwn\" if drop false else true then ;\n",
+    "  /// here after, when FORTH come accross an unknown token, instead of alerting \n",
+    "  /// it try to find the token in python __main__ module name space.\n",
+    "\n",
+    "\\ Redefine \\ command to print the comment line\n",
+    "code \\ print(nexttoken('\\n')) end-code \n",
+    "''');\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "collapsed": true
+   },
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.6.1"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}