
:>"^$                 @   s   d  Z  d d l m Z d d l m Z d d l m Z d d l m Z d d l	 m
 Z
 d d l m Z d d l m Z m Z e d	 d
  Z Gd d   d e  Z d d   Z e d k r d d l m Z e d d  d S)a!  Bio.SeqIO support for the "tab" (simple tab separated) file format.

You are expected to use this module via the Bio.SeqIO functions.

The "tab" format is an ad-hoc plain text file format where each sequence is
on one (long) line.  Each line contains the identifier/description, followed
by a tab, followed by the sequence.  For example, consider the following
short FASTA format file::

    >ID123456 possible binding site?
    CATCNAGATGACACTACGACTACGACTCAGACTAC
    >ID123457 random sequence
    ACACTACGACTACGACTCAGACTACAAN

Apart from the descriptions, this can be represented in the simple two column
tab separated format as follows::

    ID123456(tab)CATCNAGATGACACTACGACTACGACTCAGACTAC
    ID123457(tab)ACACTACGACTACGACTCAGACTACAAN

When reading this file, "ID123456" or "ID123457" will be taken as the record's
.id and .name property.  There is no other information to record.

Similarly, when writing to this format, Biopython will ONLY record the record's
.id and .seq (and not the description or any other information) as in the
example above.
    )print_function)single_letter_alphabet)	as_handle)Seq)	SeqRecord)SequentialSequenceWriter)_clean_get_seq_stringc             c   s   t  |  d   }  x |  D] } y | j d  \ } } WnJ t k
 r | j   d k r] w t d d | j d  | f   Yn X| j   } | j   } t t | |  d | d | d d Vq WWd	 QRXd	 S)
a,  Iterate over tab separated lines as SeqRecord objects.

    Each line of the file should contain one tab only, dividing the line
    into an identifier and the full sequence.

    Arguments:
     - handle - input file
     - alphabet - optional alphabet

    The first field is taken as the record's .id and .name (regardless of
    any spaces within the text) and the second field is the sequence.

    Any blank lines are ignored.

    Examples
    --------
    >>> with open("GenBank/NC_005816.tsv") as handle:
    ...     for record in TabIterator(handle):
    ...         print("%s length %i" % (record.id, len(record)))
    gi|45478712|ref|NP_995567.1| length 340
    gi|45478713|ref|NP_995568.1| length 260
    gi|45478714|ref|NP_995569.1| length 64
    gi|45478715|ref|NP_995570.1| length 123
    gi|45478716|ref|NP_995571.1| length 145
    gi|45478717|ref|NP_995572.1| length 357
    gi|45478718|ref|NP_995573.1| length 138
    gi|45478719|ref|NP_995574.1| length 312
    gi|45478720|ref|NP_995575.1| length 99
    gi|45478721|ref|NP_995576.1| length 90

    rU	 z,Each line should have one tab separating thez. title and sequence, this line has %i tabs: %ridnamedescriptionN)r   split
ValueErrorstripcountr   r   )handleZalphabetlinetitleseq r   4/tmp/pip-build-ww9dw3qa/biopython/Bio/SeqIO/TabIO.pyTabIterator-   s     r   c               @   s"   e  Z d  Z d Z d d   Z d S)	TabWriteraL  Class to write simple tab separated format files (OBSOLETE).

    Each line consists of "id(tab)sequence" only.

    Any description, name or other annotation is not recorded.

    This class is now obsolete. Please use the function ``as_tab`` instead,
    or the top level ``Bio.SeqIO.write()`` function with ``format="tab"``.
    c             C   sB   |  j  s t  |  j s t  d |  _ |  j j t |   d S)z$Write a single tab line to the file.TN)Z_header_writtenAssertionErrorZ_footer_writtenZ_record_writtenr   writeas_tab)selfrecordr   r   r   write_recordj   s    	zTabWriter.write_recordN)__name__
__module____qualname____doc__r!   r   r   r   r   r   _   s   	r   c             C   s   t  |  j  } t |   } d | k s- t  d | k s? t  d | k sQ t  d | k sc t  d | k su t  d | k s t  d | | f S)z3Return record as tab separated (id(tab)seq) string.r   
z%s	%s
)r   r   r	   r   )r    r   r   r   r   r   r   r   s    r   __main__)run_doctestverboseN)r%   
__future__r   ZBio.Alphabetr   ZBio.Filer   ZBio.Seqr   ZBio.SeqRecordr   ZBio.SeqIO.Interfacesr   r   r	   r   r   r   r"   Z
Bio._utilsr)   r   r   r   r   <module>!   s   2