How to easily create a parser for custom formatted data in Python

Question

The formatted data in file is similar to YAML and would like to create a grammer and parser for it. What is the easies way to do this in Python? Is there a tool that let you define a grammer for your data and parses according to the grammer?

P.S. I know the easier way to do this might be to change the data formate into JSON or other type but right now it can't be changed

pyparsing is a common answer.

Katriel
– Katriel

2012-04-03 20:18:12 +00:00
Commented Apr 3, 2012 at 20:18 — Katriel
– Katriel, Commented Apr 3, 2012 at 20:18

Platinum Azure · Accepted Answer · 2012-04-03 20:14:40Z

3

Look into pyparsing. It's a pretty simple library, but it is also quite powerful.

answered Apr 3, 2012 at 20:14

Platinum Azure

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toriningen · Accepted Answer · 2012-04-03 20:17:36Z

1

I have used PLY in conjunction with easyply earlier, and liked it - maybe, you will find it neat to use with your custom format.

answered Apr 3, 2012 at 20:17

toriningen

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9000 · Accepted Answer · 2012-04-03 20:36:00Z

0

Maybe you'd find funcparselib worthy. It has easy syntax both for tokenization and syntax definitions.

PyParsing is probably slower, but powerful and well-known.

answered Apr 3, 2012 at 20:36

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