匹配模式的有效方法 - python

Question

I wondering how to do properly a matching model or something similar.

Here is my matching data.

CFI Code ESMA Type  
DB****  RFOBLIGAC   
E*****  RV  
R*****  DERECHOEMIS 
O**S*S  FUTOPRV 
O**S*N  SWAPRV               
O**I*S  FUTOPR

For the first example 'DB****' I want to obtain the world 'RFOBLIGAC', but here is the problem, the **** can be whatever character.

For example if my CFI is 'DB4902' is the same as 'DB****' so the result would be 'RFOBLIGAC'.

The problem is for the last 3 examples, as you can see they change only letter 4, and last one.

I want an idea how to plain what is the best solution to solve it.

I just posted 6 lines, but I have more than 30 matching patterns.

Any idea?

Answer 1

The simplest solution is to just write a regular expression for each pattern, and test each in sequence. Here, you'd probably want a list of (CFI-regex, ESMA-type) pairs.

There are more elegant solutions (eg. a trie), but for 30 patterns, this is probably fine and almost no work.