Hi,
After trawling through the archives for a simple quote aware split
implementation (ie string.split-alike that only splits outside of
matching quote) and coming up short, I implemented a quick and dirty
function that suits my purposes.
It's ugly and it doesn't use a stack, it only supports a single
character as a 'sep' function, only supports one type of quote (ie '
or " but not both), but it does the job, and since there have been a
few appeals over the years for something of this sort I have decided
to post what I have:
--- BEGIN ---
#!/usr/bin/env python
def qsplit(chars, sep, quote="'"):
""" Quote aware split """
qcount = 0
splitpoints = [-1] # ie. seperator char found before first letter ;)
for index, c in enumerate(chars ):
if c is quote:
qcount += 1
if c is sep and qcount % 2 == 0:
splitpoints.app end(index)
# slice chars by splitpoints *omitting the separator*
slices = [chars[splitpoints[i]+1:splitpoints[i+1]]
for i in range(len(split points)-1)]
# last slice will be of the form chars[last:] which we couldnt do above
slices.append(c hars[splitpoints[-1]+1:])
return slices
if __name__ == "__main__":
test = "This is gonna be in quotes ';' and this is not; lets see
how we split"
test2 = """
A more complex example; try this on for size:
create function blah '
split me once;
split me twice; '
end;
'one more time;'
and again;
"""
print "*--split--*".join(qsplit( test, ';'))
print "*--split--*".join(qsplit( test2, ';'))
# vim:tabstop=4:s hiftwidth=4:exp andtab
--- END ---
Regards,
Ondrej Baudys
After trawling through the archives for a simple quote aware split
implementation (ie string.split-alike that only splits outside of
matching quote) and coming up short, I implemented a quick and dirty
function that suits my purposes.
It's ugly and it doesn't use a stack, it only supports a single
character as a 'sep' function, only supports one type of quote (ie '
or " but not both), but it does the job, and since there have been a
few appeals over the years for something of this sort I have decided
to post what I have:
--- BEGIN ---
#!/usr/bin/env python
def qsplit(chars, sep, quote="'"):
""" Quote aware split """
qcount = 0
splitpoints = [-1] # ie. seperator char found before first letter ;)
for index, c in enumerate(chars ):
if c is quote:
qcount += 1
if c is sep and qcount % 2 == 0:
splitpoints.app end(index)
# slice chars by splitpoints *omitting the separator*
slices = [chars[splitpoints[i]+1:splitpoints[i+1]]
for i in range(len(split points)-1)]
# last slice will be of the form chars[last:] which we couldnt do above
slices.append(c hars[splitpoints[-1]+1:])
return slices
if __name__ == "__main__":
test = "This is gonna be in quotes ';' and this is not; lets see
how we split"
test2 = """
A more complex example; try this on for size:
create function blah '
split me once;
split me twice; '
end;
'one more time;'
and again;
"""
print "*--split--*".join(qsplit( test, ';'))
print "*--split--*".join(qsplit( test2, ';'))
# vim:tabstop=4:s hiftwidth=4:exp andtab
--- END ---
Regards,
Ondrej Baudys
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