__init__.py
3.94 KB
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import sys
import traceback
from datetime import (
datetime,
date,
time,
)
from ..waktu import (
dmy,
dmyhms,
)
try:
from StringIO import StringIO
except ImportError:
from io import StringIO
def clean(s):
r = ''
for ch in s:
ascii = ord(ch)
if ascii > 126 or ascii < 32:
ch = ' '
r += ch
return r
def to_str(v):
if isinstance(v, date):
if isinstance(v, datetime):
return dmyhms(v)
return dmy(v)
if v == 0:
return '0'
if isinstance(v, bytes):
return v.encode('utf-8')
if sys.version_info.major == 2 and isinstance(v, unicode):
v = str(v)
if isinstance(v, str):
return v.strip()
elif isinstance(v, bool):
return v and '1' or '0'
return v and str(v) or ''
def dict_to_str(d):
r = {}
for key in d:
val = d[key]
r[key] = to_str(val)
return r
def left(s, width):
s = to_str(s)
return s.ljust(width)[:width]
def right(s, width):
s = to_str(s)
return s.zfill(width)[:width]
class FixLength:
def __init__(self, struct):
self.set_struct(struct)
def set_struct(self, struct):
self.struct = []
self.fields = {}
for s in struct:
name = s[0]
size = s[1:] and s[1] or 1
typ = s[2:] and s[2] or 'A' # N: numeric, A: alphanumeric
self.fields[name] = {'value': None, 'type': typ, 'size': size}
self.struct.append((name, size, typ))
def set(self, name, value):
self.fields[name]['value'] = value
def get(self, name):
return self.fields[name]['value'] or ''
def __setitem__(self, name, value):
self.set(name, value)
def __getitem__(self, name):
return self.get(name)
def get_raw(self):
s = ''
for name, size, typ in self.struct:
v = self.fields[name]['value']
pad_func = typ == 'N' and right or left
if v and typ == 'N':
i = int(v)
if v == i:
v = i
s += pad_func(v, size)
return s
def set_raw(self, raw):
awal = 0
for t in self.struct:
name = t[0]
size = t[1:] and t[1] or 1
akhir = awal + size
value = raw[awal:akhir]
if not value:
return
self.set(name, value)
awal += size
return True
def from_dict(self, d):
for name in d:
value = d[name]
self.set(name, value)
class DateVar(FixLength):
def __init__(self):
FixLength.__init__(self, [
['month', 2, 'N'],
['day', 2, 'N'],
])
def get_value(self, year=None):
year = year or date.today().year
return date(year, self.get('month'), self.get('day'))
class DateTimeVar(FixLength):
def __init__(self):
FixLength.__init__(self, [
['month', 2, 'N'],
['day', 2, 'N'],
['hour', 2, 'N'],
['minute', 2, 'N'],
['second', 2, 'N'],
])
def get_value(self, year=None):
year = year or date.today().year
return datetime(year, self.get('month'), self.get('day'),
self.get('hour'), self.get('minute'),
self.get('second'))
class TimeVar(FixLength):
def __init__(self):
FixLength.__init__(self, [
['hour', 2, 'N'],
['minute', 2, 'N'],
['second', 2, 'N'],
])
def get_value(self):
return time(self.get('hour'), self.get('minute'), self.get('second'))
def exception_message():
f = StringIO()
traceback.print_exc(file=f)
s = f.getvalue()
f.close()
return s