--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/implab/text/format.js	Thu Jun 01 13:20:03 2017 +0300
@@ -0,0 +1,85 @@
+define([
+    "./safe",
+    "./format-compile",
+    "dojo/number",
+    "dojo/date/locale",
+    "dojo/_base/array" ], function(safe, compile, number, date, array) {
+
+    // {short,medium,full,long}-{date,time}
+    var convert = function(value, pattern) {
+        if (!pattern)
+            return value.toString();
+
+        if (pattern.toLocaleLowerCase() == "json") {
+            var cache = [];
+            return JSON.stringify(value, function(k, v) {
+                if (!safe.isPrimitive(v)) {
+                    var id = array.indexOf(cache, v);
+                    if (id >= 0)
+                        return "@ref-" + id;
+                    else
+                        return v;
+                } else {
+                    return v;
+                }
+            });
+        }
+
+        if (safe.isNumber(value)) {
+            var nopt = {};
+            if (pattern.indexOf("!") === 0) {
+                nopt.round = -1;
+                pattern = pattern.substr(1);
+            }
+            nopt.pattern = pattern;
+            return number.format(value, nopt);
+        } else if (value instanceof Date) {
+            var m = pattern.match(/^(\w+)-(\w+)$/);
+            if (m)
+                return date.format(value, {
+                    selector : m[2],
+                    formatLength : m[1]
+                });
+            else
+                return date.format(value, {
+                    selector : "date",
+                    datePattern : pattern
+                });
+        } else {
+            return value.toString(pattern);
+        }
+    };
+
+    function formatter(format) {
+        var data;
+
+        if (arguments.length <= 1)
+            return format;
+
+        data = Array.prototype.slice.call(arguments, 1);
+
+        var template = compile(format);
+
+        return template(function(name, pattern) {
+            var value = data[name];
+            return !safe.isNull(value) ? convert(value, pattern) : "";
+        });
+    }
+
+    formatter.compile = function(format) {
+        var template = compile(format);
+
+        return function() {
+            var data = arguments;
+
+            return template(function(name, pattern) {
+                var value = data[name];
+                return !safe.isNull(value) ? convert(value, pattern) : "";
+            });
+        };
+    };
+
+    formatter.convert = convert;
+
+    return formatter;
+});
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