1 files changed, 106 insertions, 0 deletions
diff --git a/static/admin/js/timeparse.js b/static/admin/js/timeparse.js
new file mode 100644
index 0000000..3cdc7ec
--- /dev/null
+++ b/static/admin/js/timeparse.js
@@ -0,0 +1,106 @@
+(function() {
+    'use strict';
+    var timeParsePatterns = [
+        // 9
+        {
+            re: /^\d{1,2}$/i,
+            handler: function(bits) {
+                if (bits[0].length === 1) {
+                    return '0' + bits[0] + ':00';
+                } else {
+                    return bits[0] + ':00';
+                }
+            }
+        },
+        // 13:00
+        {
+            re: /^\d{2}[:.]\d{2}$/i,
+            handler: function(bits) {
+                return bits[0].replace('.', ':');
+            }
+        },
+        // 9:00
+        {
+            re: /^\d[:.]\d{2}$/i,
+            handler: function(bits) {
+                return '0' + bits[0].replace('.', ':');
+            }
+        },
+        // 3 am / 3 a.m. / 3am
+        {
+            re: /^(\d+)\s*([ap])(?:.?m.?)?$/i,
+            handler: function(bits) {
+                var hour = parseInt(bits[1]);
+                if (hour === 12) {
+                    hour = 0;
+                }
+                if (bits[2].toLowerCase() === 'p') {
+                    if (hour === 12) {
+                        hour = 0;
+                    }
+                    return (hour + 12) + ':00';
+                } else {
+                    if (hour < 10) {
+                        return '0' + hour + ':00';
+                    } else {
+                        return hour + ':00';
+                    }
+                }
+            }
+        },
+        // 3.30 am / 3:15 a.m. / 3.00am
+        {
+            re: /^(\d+)[.:](\d{2})\s*([ap]).?m.?$/i,
+            handler: function(bits) {
+                var hour = parseInt(bits[1]);
+                var mins = parseInt(bits[2]);
+                if (mins < 10) {
+                    mins = '0' + mins;
+                }
+                if (hour === 12) {
+                    hour = 0;
+                }
+                if (bits[3].toLowerCase() === 'p') {
+                    if (hour === 12) {
+                        hour = 0;
+                    }
+                    return (hour + 12) + ':' + mins;
+                } else {
+                    if (hour < 10) {
+                        return '0' + hour + ':' + mins;
+                    } else {
+                        return hour + ':' + mins;
+                    }
+                }
+            }
+        },
+        // noon
+        {
+            re: /^no/i,
+            handler: function(bits) {
+                return '12:00';
+            }
+        },
+        // midnight
+        {
+            re: /^mid/i,
+            handler: function(bits) {
+                return '00:00';
+            }
+        }
+    ];
+
+    function parseTimeString(s) {
+        for (var i = 0; i < timeParsePatterns.length; i++) {
+            var re = timeParsePatterns[i].re;
+            var handler = timeParsePatterns[i].handler;
+            var bits = re.exec(s);
+            if (bits) {
+                return handler(bits);
+            }
+        }
+        return s;
+    }
+
+    window.parseTimeString = parseTimeString;
+})();