def tag_message(msg):
"""
Insert serialization tag in msg
where we anticipate a fragmentation.
Note: fragmentation has many rules, i.e.
seemingly fragmentation does not break words.
But if you have ({ without whitespace- then fragmentation
can happen along those.
Documentation is also non-existent,
maybe look in GSM standard
"""
MSG_LEN = 160
#Tag Format is @@XXXX -> can order upto 9999 messages
# = 9999 bytes
TAG_LEN = 6
#The step size while iterating over msg
STEP = MSG_LEN - TAG_LEN
#Get tag
# index -> @@XXXX
get_tag = lambda i: "@@" + str(i).zfill(4)
#Get tagged chunk
get_tagged = lambda i, chunk: get_tag(i) + chunk
offset = STEP - len(prologue)
chunks = []
for i, chunk in enumerate(chunk_iter_offset(msg, size=STEP,
offset=offset)):
#print "byte_len is {}\n{}\n{}\n{}\n\n".format(byte_len(chunk), "-"*40, chunk, "="*40)
chunks.append(get_tagged(i, chunk))
#Use an end-tag to indicate end,
#and track total number of chars sent
#end tag format @@EXXXX -> XXXX=string len (not byte length)
#of untagged message
#can be from 1 to 9999*160 ~ 1,600,000
tagged_msg = "".join(chunks)
tagged_msg = tagged_msg + "@@E" + str(len(msg)) + "E@@"
return tagged_msg
def tag_message(msg):
"""
Insert serialization tag in msg
where we anticipate a fragmentation.
Note: fragmentation has many rules, i.e.
seemingly fragmentation does not break words.
But if you have ({ without whitespace- then fragmentation
can happen along those.
Documentation is also non-existent,
maybe look in GSM standard
"""
MSG_LEN = 160
#Tag Format is @@XXXX -> can order upto 9999 messages
# = 9999 bytes
TAG_LEN = 6
#The step size while iterating over msg
STEP = MSG_LEN - TAG_LEN
#Get tag
# index -> @@XXXX
get_tag = lambda i: "@@" + str(i).zfill(4)
#Get tagged chunk
get_tagged = lambda i, chunk: get_tag(i) + chunk
offset = STEP - len(prologue)
chunks = []
for i, chunk in enumerate(chunk_iter_offset(msg, size=STEP, offset=offset)):
#print "byte_len is {}\n{}\n{}\n{}\n\n".format(byte_len(chunk), "-"*40, chunk, "="*40)
chunks.append(get_tagged(i, chunk))
#Use an end-tag to indicate end,
#and track total number of chars sent
#end tag format @@EXXXX -> XXXX=string len (not byte length)
#of untagged message
#can be from 1 to 9999*160 ~ 1,600,000
tagged_msg = "".join(chunks)
tagged_msg = tagged_msg + "@@E" + str(len(msg)) + "E@@"
return tagged_msg
def test2():
data = "012345678[9"
for sms in chunk_iter_offset(data, size=5, offset=3):
print '"{}", byte_len is {}'.format(sms, byte_len(sms))
print "------------------"
def test2():
data = "012345678[9"
for sms in chunk_iter_offset(data, size=5, offset=3):
print '"{}", byte_len is {}'.format(sms, byte_len(sms))
print "------------------"
