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Module: genbank Bio/expressions/genbank.py

Martel based parser to read GenBank formatted files.

This is a huge regular regular expression for GenBank, built using the regular expressiona on steroids capabilities of Martel.

Documentation for GenBank format that I found:

  • GenBank/EMBL feature tables are described at: http://www.ebi.ac.uk/embl/Documentation/FT_definitions/feature_table.html

  • There are also descriptions of different GenBank lines at: http://www.ibc.wustl.edu/standards/gbrel.txt

Imported modules   
from Bio import Std
import Martel
from Martel import RecordReader
import string
Functions   
define_block
  define_block  
define_block (
        identifier,
        block_tag,
        block_data,
        )

Define a Martel grouping which can parse a block of text.

Many of the GenBank lines we'll want to process are grouped into a block like:

IDENTIFIER Blah blah blah

Where blah blah blah can wrap for multiple lines. This function makes it easy to consistently define a definition for these blocks.

Arguments: o identifier - The identifier that begins the block (like DEFINITION). o block_tag - A callback tag for the entire block. o block_data - A callback tag for the data in the block (ie. the stuff you are interested in).

  • useful functions

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