Data commit

Task/Rot-13/Jsish/rot-13.jsish

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+#!/usr/local/bin/jsish
+/* ROT-13 in Jsish */
+function rot13(msg:string) {
+    return msg.replace(/([a-m])|([n-z])/ig, function(m,p1,p2,ofs,str) {
+        return String.fromCharCode(
+            p1 ? p1.charCodeAt(0) + 13 : p2 ? p2.charCodeAt(0) - 13 : 0) || m;
+    });
+}
+provide('rot13', Util.verConvert("1.0"));
+
+/* rot13 command line utility */
+if (isMain()) {
+    /* Unit testing */
+    if (Interp.conf('unitTest') > 0) {
+;       rot13('ABJURER nowhere 123!');
+;       rot13(rot13('Same old same old'));
+        return;
+    }
+
+    /* rot-13 of data lines from given filenames or stdin, to stdout */
+    function processFile(fname:string) {
+        var str;
+        if (fname == "stdin") fname = "./stdin";
+        if (fname == "-") fname = "stdin";
+        var fin = new Channel(fname, 'r');
+        while (str = fin.gets()) puts(rot13(str));
+        fin.close();
+    }
+
+    if (console.args.length == 0) console.args.push('-');
+    for (var fn of console.args) {
+        try { processFile(fn); } catch(err) { puts(err, "processing", fn); }
+    }
+}
+
+/*
+=!EXPECTSTART!=
+rot13('ABJURER nowhere 123!') ==> NOWHERE abjurer 123!
+rot13(rot13('Same old same old')) ==> Same old same old
+=!EXPECTEND!=
+*/