dwtt/Command.py
2011-01-01 17:34:08 -05:00

113 lines
3.7 KiB
Python

from datetime import datetime, timedelta
import re
class Command:
def __init__(self, default_time, cmdline):
self.time = default_time
self.command = 'start'
self.argstr = ''
self.parseCommandLine(cmdline)
def __str__(self):
return "{'time' => '%s', 'command' => '%s', 'argstr' => '%s'}" % \
(self.time, self.command, self.argstr)
def parseCommandLine(self, cmdline):
COMMANDS = {
'out' : 1,
'report' : 1,
'status' : 1,
'fill' : 1,
'adjust' : 1,
'start' : 1
}
ALIASES = {
'rpt' : 'report',
'adj' : 'adjust',
'end' : 'out',
'st' : 'status',
'show' : 'status',
'f' : 'fill'
}
args = []
foundArgs = False
while True:
cmdline = cmdline.strip()
if len(cmdline) < 1:
break
parts = cmdline.split(None, 1)
token = parts[0]
if not foundArgs:
if self.parseDate(token):
pass
elif self.parseTime(token):
pass
elif token in COMMANDS:
self.command = token
foundArgs = True
elif token in ALIASES:
self.command = ALIASES[token]
foundArgs = True
else:
foundArgs = True
args.append(token)
else:
args.append(token)
if len(parts) < 2:
break
cmdline = parts[1]
self.argstr = ' '.join(args)
def parseDate(self, dt):
if dt.lower() == "yesterday":
today = datetime.today()
y = today - timedelta(days = 1)
self.time = self.time.replace(
year = y.year, month = y.month, day = y.day)
return True
m = re.match('^(?:(\d{4})[-/])?(\d{1,2})[-/](\d{1,2})$', dt)
if m is not None:
# dt was a date string
if m.group(1) is not None:
self.time = self.time.replace(year = int(m.group(1)))
month, day = int(m.group(2)), int(m.group(3))
self.time = self.time.replace(month = month, day = day)
return True
return False
def parseTime(self, timespec):
m = re.match('^(\d{1,2}):?(\d{2})?(am?|pm?)?$', timespec, re.I)
if m is not None:
# an absolute time was given
h = int(m.group(1))
mins = 0 if m.group(2) is None else int(m.group(2))
am_pm = '' if m.group(3) is None else m.group(3)[0].lower()
if am_pm == 'p' and h < 12:
h += 12
elif am_pm == 'a' and h == 12:
h = 0
self.time = self.time.replace(hour = h, minute = mins, second = 0)
return True
m = re.match('^([-+])(\d+(?:\.\d+)?)([hms])?$', timespec, re.I)
if m is not None:
# a relative time was given
plus_minus = m.group(1)
hms = '' if m.group(3) is None else m.group(3)
count = int(m.group(2))
if hms == 'm':
seconds = count * 60
elif hms == 's':
seconds = count
else: # hours
seconds = count * 60 * 60
delta = timedelta(seconds = seconds)
if plus_minus == '-':
self.time -= delta
else:
self.time += delta
return True
return False