comparison mercurial/util.py @ 26126:7b625baed995

util: extract function that parses timezone string

It will be used to parse a timezone argument passed to a template function.

26125:c990afab2243

def shortdate(date=None):
    """turn (timestamp, tzoff) tuple into iso 8631 date."""
    return datestr(date, format='%Y-%m-%d')

def strdate(string, format, defaults=[]):
    """parse a localized time string and return a (unixtime, offset) tuple.
    if the string cannot be parsed, ValueError is raised."""
    def timezone(string):
        tz = string.split()[-1]
        if tz[0] in "+-" and len(tz) == 5 and tz[1:].isdigit():
            sign = (tz[0] == "+") and 1 or -1
            hours = int(tz[1:3])
            minutes = int(tz[3:5])
            return -sign * (hours * 60 + minutes) * 60
        if tz == "GMT" or tz == "UTC":
            return 0
        return None

    # NOTE: unixtime = localunixtime + offset
    offset, date = timezone(string), string
    if offset is not None:
        date = " ".join(string.split()[:-1])

    # add missing elements from defaults
    usenow = False # default to using biased defaults

26126:7b625baed995

def shortdate(date=None):
    """turn (timestamp, tzoff) tuple into iso 8631 date."""
    return datestr(date, format='%Y-%m-%d')

def parsetimezone(tz):
    """parse a timezone string and return an offset integer"""
    if tz[0] in "+-" and len(tz) == 5 and tz[1:].isdigit():
        sign = (tz[0] == "+") and 1 or -1
        hours = int(tz[1:3])
        minutes = int(tz[3:5])
        return -sign * (hours * 60 + minutes) * 60
    if tz == "GMT" or tz == "UTC":
        return 0
    return None

def strdate(string, format, defaults=[]):
    """parse a localized time string and return a (unixtime, offset) tuple.
    if the string cannot be parsed, ValueError is raised."""
    # NOTE: unixtime = localunixtime + offset
    offset, date = parsetimezone(string.split()[-1]), string
    if offset is not None:
        date = " ".join(string.split()[:-1])

    # add missing elements from defaults
    usenow = False # default to using biased defaults