In article <[EMAIL PROTECTED]>,
<[EMAIL PROTECTED]> wrote:
>Hi,
>
>I have a file that contains a "tcl" list stored as a string. The list
>members are
>sql commands ex:
> { begin { select * from foo
> where baz='whatever'}
> {select * from gooble } end
> { insert into bar values('Tom', 25) } }
>
>I would like to parse the tcl list into a python list...
>
>Any suggestions ( I am running Tkinter...)
.
.
.
No correct solution's going to be as elegant as I suspect you imagine.
Here's an example of what's required:
# If you try anything you suspect is simpler, you're going to have to
# teach Python about Tcl treatment of whitespace, or teach Tcl how
# Python quotes, or ...
import Tkinter
tcl_list = """{ begin { select * from foo
where baz='whatever'}
{select * from gooble } end
{ insert into bar values('Tom', 25) } }"""
# Collect the Python list here.
result = []
# Create a single Tcl interpretive context for all the work.
tk_instance = Tkinter.Tk().tk.eval
# Everything Tcl returns is a string; make this value an integer.
tcl_list_length = int(tk_instance(
"set tcl_list %s; llength $tcl_list" % tcl_list))
# With all the set-up done, simply loop over the elements.
for counter in range(tcl_list_length):
# Ask Tcl for each successive list item.
result.append(tk_instance("lindex $tcl_list %d" % counter))
print result
The output is
['begin', " select * from foo\n where baz='whatever'", 'select
* from gooble ', 'end', " insert into bar values('Tom', 25) "]
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