Inline a number of simple date computations.

The minifier has been updated to have better recognition of regular
expressions.

Review URL: http://codereview.chromium.org/521057

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3565 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/macros.py

@@ -118,6 +118,14 @@ macro NUMBER_OF_CAPTURES(array) = ((array)[0]);
 # Gets the value of a Date object. If arg is not a Date object
 # a type error is thrown.
 macro DATE_VALUE(arg) = (%_ClassOf(arg) === 'Date' ? %_ValueOf(arg) : ThrowDateTypeError());
+macro DAY(time) = ($floor(time / 86400000));
+macro MONTH_FROM_TIME(time) = (FromJulianDay(($floor(time / 86400000)) + 2440588).month);
+macro DATE_FROM_TIME(time) = (FromJulianDay(($floor(time / 86400000)) + 2440588).date);
+macro YEAR_FROM_TIME(time) = (FromJulianDay(($floor(time / 86400000)) + 2440588).year);
+macro HOUR_FROM_TIME(time) = (Modulo($floor(time / 3600000), 24));
+macro MIN_FROM_TIME(time) = (Modulo($floor(time / 60000), 60));
+macro SEC_FROM_TIME(time) = (Modulo($floor(time / 1000), 60));
+macro MS_FROM_TIME(time) = (Modulo(time, 1000));
 
 # Last input and last subject of regexp matches.
 macro LAST_SUBJECT(array) = ((array)[1]);

tools/jsmin.py

@@ -230,7 +230,9 @@ class JavaScriptMinifier(object):
       # A regexp that matches a literal string surrounded by 'double quotes'.
       single_quoted_string = r"'(?:[^'\\]|\\.)*'"
       # A regexp that matches a regexp literal surrounded by /slashes/.
-      slash_quoted_regexp = r"/(?:[^/\\]|\\.)+/"
+      # Don't allow a regexp to have a ) before the first ( since that's a
+      # syntax error and it's probably just two unrelated slashes.
+      slash_quoted_regexp = r"/(?:(?=\()|(?:[^()/\\]|\\.)+)(?:\([^/\\]|\\.)*/"
       # Replace multiple spaces with a single space.
       line = re.sub("|".join([double_quoted_string,
                               single_quoted_string,