Snippet: A sed shell in Python
Here is a very simple shell in Python to test regular expressions with sed.
The shell works by matching the input as a sed command against a given data.
Each input line is evaluated as a Python expression (and it must evaluate to a [base]string) and then sent to sed as a command to be matched against this given data.
So every input is the same as:
echo <data> | sed -r -e <input>
<data> is set by using the d() function:
>> d("My data")
>> r's#^My#Our#'
Our data
To see what <data> contains, simply use the d() function without arguments:
>> d()
My data
(<data> defaults to the alphabet string "abc...z")
To exit, use Ctrl-C (KeyboardInterrupt) or send an EOF to it (Windows: Ctrl-Z+Enter, Linux: Ctrl-D) or yet use the exit() function.
