o
    hJ                     @   s   d Z ddlZddlZddlmZ ddlmZmZm	Z	 g dZ
G dd deZG d	d
 d
eZdd ZG dd dZdddZdd Zdd ZG dd dZG dd dZdd ZdddZdS )a  
Implementation of Harwell-Boeing read/write.

At the moment not the full Harwell-Boeing format is supported. Supported
features are:

    - assembled, non-symmetric, real matrices
    - integer for pointer/indices
    - exponential format for float values, and int format

    N)
csc_matrix   )FortranFormatParser	IntFormat	ExpFormat)MalformedHeaderhb_readhb_writeHBInfoHBFileHBMatrixTypec                   @      e Zd ZdS )r   N__name__
__module____qualname__ r   r   V/var/www/html/scripts/venv/lib/python3.10/site-packages/scipy/io/_harwell_boeing/hb.pyr          r   c                   @   r   )LineOverflowNr   r   r   r   r   r   #   r   r   c                 C   s   | j | j d |d  S )zcReturn the number of bytes to read to get every full lines for the
    given parsed fortran format.r   )repeatwidth)fmtnlinesr   r   r   _nbytes_full'   s   r   c                   @   s:   e Zd ZedddZedd Z	dd	d
Zdd ZdS )r
   Default title0Nc                 C   s  |j dd}|j}|j}|j}|j\}	}
|j}|du rctt	|d }tt	|d }|j
jtjd v rEtt	t| }n"|j
jtjd v r[tt	t| }ntd|j
j td|du rt|sttd	|j
jtjd v rd
}n|j
jtjd v rd}ntd|j
 t|dd}ntddd }|||j}|||j}|||j}|| | }| ||||||||	|
||j|j|jS )a  Create a HBInfo instance from an existing sparse matrix.

        Parameters
        ----------
        m : sparse matrix
            the HBInfo instance will derive its parameters from m
        title : str
            Title to put in the HB header
        key : str
            Key
        mxtype : HBMatrixType
            type of the input matrix
        fmt : dict
            not implemented

        Returns
        -------
        hb_info : HBInfo instance
        FcopyNr   AllFloat
AllIntegerztype %s not implemented yetzfmt argument not supported yet.z Complex values not supported yetintegerrealz"type %s for values not implementedunsymmetric	assembledz mxtype argument not handled yet.c                 S   s$   || j  }|| j  |kr|d7 }|S )Nr   )r   )r   sizer   r   r   r   _nlinesi   s   
z!HBInfo.from_data.<locals>._nlines)tocscindptrindicesdatashapennzr   from_numbernpmaxdtypekind	typecodesr   absNotImplementedError	isrealobj
ValueErrorr   r%   fortran_format)clsmtitlekeymxtyper   pointerr)   valuesnrowsncols
nnon_zerospointer_fmtindices_fmt
values_fmttpr&   pointer_nlinesindices_nlinesvalues_nlinestotal_nlinesr   r   r   	from_data.   sL   

zHBInfo.from_datac                 C   s@  |  d}t|dkstd| |dd }|dd }|  d}t| dks4td| t|dd }t|dd }t|dd	 }t|d	d }|dd  }	|	d
krcd}	nt|	}	|	dksotd|  d}t|dkstd| |dd  }
t|
dkstdt|
}|j	dvrtd| |j
dkstd| |jdkstd|dd dkstd| t|dd }t|dd	 }t|d	d }t|dd }|dkstd| |  d}| }t|dkstd| | |||||||||||d |d |d |	|S )a6  Create a HBInfo instance from a file object containing a matrix in the
        HB format.

        Parameters
        ----------
        fid : file-like matrix
            File or file-like object containing a matrix in the HB format.

        Returns
        -------
        hb_info : HBInfo instance
        
H   z8Expected at least 72 characters for first line, got: 
%sN8   z9Expected at least 56 characters for second line, got: 
%s      *    r   z5Only files without right hand side supported for now.F   z6Expected at least 72 character for third line, got:
%s   z'mxtype expected to be 3 characters long)r"   r!   z=Only real or integer matrices supported for now (detected %s)r#   z9Only unsymmetric matrices supported for now (detected %s)r$   z)Only assembled matrices supported for nowz           z!Malformed data for third line: %sz4Unexpected value %d for nltvl (last entry of line 3)zExpected 3 formats, got %sr      )readlinestriplenr6   rstrip_expect_intupperr   from_fortran
value_type	structurestoragesplit)r8   fidliner:   r;   rI   rF   rG   rH   
rhs_nlinesmxtype_sr<   r?   r@   rA   nelementalsctr   r   r   	from_file{   sz   



zHBInfo.from_filer   c                 C   s  || _ || _|du rd}t|dkrtd|du rd}t|dkr*td| t || _|| _|| _	|| _
t }||}t|tsItd| ||}t|tsYtd	| ||}t|trt|jd
vrptd||tj}nt|tr|jdvrtd||t}ntd||| _|| _|| _tj| _tj| _|| _|| _t||| _|| _	t||| _|| _
t||| _|| _ |	| _!|
| _"|| _#|| _$dS )z@Do not use this directly, but the class ctrs (from_* functions).NzNo TitlerL   ztitle cannot be > 72 charactersz|No Key   z!key is > 8 characters (key is %s)z.Expected int format for pointer format, got %sz.Expected int format for indices format, got %s)r"   complexz6Inconsistency between matrix type {} and value type {})r!   zUnsupported format for values )%r:   r;   rW   r6   warningswarnr   rI   rF   rG   rH   r   parse
isinstancer   r   r\   formatr.   float64intpointer_formatindices_formatvalues_formatint32pointer_dtypeindices_dtypevalues_dtyper   pointer_nbytes_fullindices_nbytes_fullvalues_nbytes_fullr?   r@   rA   rd   r<   )selfr:   r;   rI   rF   rG   rH   r<   r?   r@   rA   pointer_format_strindices_format_strvalues_format_strright_hand_sides_nlinesrd   parserrp   rq   rr   rv   r   r   r   __init__   sp   









zHBInfo.__init__c                 C   s   | j d| jd g}|d| j| j| j| jf  |d| jj	d| j
| j| jdf  | jj	}| jj	}| jj	}|d|d|d|d	f  d
|S )z<Gives the header corresponding to this instance as a string.rL   rg   z%14d%14d%14d%14dz%14s%14d%14d%14d%14drN   r   z%16s%16s%20s      rK   )r:   ljustr;   appendrI   rF   rG   rH   r<   r7   r?   r@   rA   rp   rq   rr   join)rz   headerpffmtiffmtvffmtr   r   r   dump  s$   

zHBInfo.dump)r   r   NN)r   r   )r   r   r   classmethodrJ   rf   r   r   r   r   r   r   r
   -   s    L
X
Hr
   c              
   C   s>   zt | W S  ty } z|d u rd}t||  |d }~ww )NzExpected an int, got %s)ro   r6   )valuemsger   r   r   rY   +  s   
rY   c           	   
   C   s   d | |j|  g}tj|tdd}d | |j|  g}tj|tdd}d | |j|  g}tj||j	dd}zt
||d |d f|j|jfdW S  ty` } z|d }~ww )NrQ    )r0   sepr   )r+   )r   readrw   rU   r.   
fromstringro   rx   ry   rv   r   r?   r@   r6   )	contentr   
ptr_stringptr
ind_stringind
val_stringvalr   r   r   r   _read_hb_data4  s4   
r   c                 C   st   | j dd} dd }||  |d ||| jd |j|j ||| jd |j|j ||| j	|j
|j d S )NFr   c           	      S   s   |j }||j }|d |d |j  }||d |jfD ]}| |t| d  q|j|j }|dkrK| || t||j| d   d  d S d S )Nr   rK   r   )python_formatr   reshapewritetupler%   )	farr   r   pyfmt
pyfmt_fullfullrownremainr   r   r   write_arrayO  s   
,z _write_data.<locals>.write_arrayrK   r   )r'   r   r   r(   rF   rp   r)   rG   rq   r*   rH   rr   )r9   r`   r   r   r   r   r   _write_dataL  s   
r   c                   @   s   e Zd ZdZdddddZddd	d
ddZdddZdd e D Zdd e D Z	dd e D Z
edd ZdddZedd Zdd ZdS )r   zClass to hold the matrix type.RCPI)r"   rh   patternr!   SUHZ)	symmetricr#   	hermitianskewsymmetricrectangularAE)r$   	elementalc                 C      i | ]\}}||qS r   r   .0ijr   r   r   
<dictcomp>~      zHBMatrixType.<dictcomp>c                 C   r   r   r   r   r   r   r   r     r   c                 C   r   r   r   r   r   r   r   r     r   c              
   C   st   t |dks
tdz| j|d  }| j|d  }| j|d  }| |||W S  ty9 } ztd| |d }~ww )NrS   z:Fortran format for matrix type should be 3 characters longr   r   rT   zUnrecognized format %s)rW   r6   	_f2q_type_f2q_structure_f2q_storageKeyError)r8   r   r\   r]   r^   r   r   r   r   r[     s   zHBMatrixType.from_fortranr$   c                 C   sX   || _ || _|| _|| jvrtd| || jvrtd| || jvr*td| d S )NzUnrecognized type %szUnrecognized structure %szUnrecognized storage %s)r\   r]   r^   	_q2f_typer6   _q2f_structure_q2f_storage)rz   r\   r]   r^   r   r   r   r     s   


zHBMatrixType.__init__c                 C   s$   | j | j | j| j  | j| j  S N)r   r\   r   r]   r   r^   rz   r   r   r   r7     s
   


zHBMatrixType.fortran_formatc                 C   s   d| j | j| jf S )NzHBMatrixType(%s, %s, %s))r\   r]   r^   r   r   r   r   __repr__  s   zHBMatrixType.__repr__N)r$   )r   r   r   __doc__r   r   r   itemsr   r   r   r   r[   r   propertyr7   r   r   r   r   r   r   i  s2    


r   c                   @   sb   e Zd ZdddZedd Zedd Zedd	 Zed
d Zedd Z	dd Z
dd ZdS )r   Nc                 C   s(   || _ |du rt|| _dS || _dS )a  Create a HBFile instance.

        Parameters
        ----------
        file : file-object
            StringIO work as well
        hb_info : HBInfo, optional
            Should be given as an argument for writing, in which case the file
            should be writable.
        N)_fidr
   rf   _hb_info)rz   filehb_infor   r   r   r     s   
zHBFile.__init__c                 C      | j jS r   )r   r:   r   r   r   r   r:        zHBFile.titlec                 C   r   r   )r   r;   r   r   r   r   r;     r   z
HBFile.keyc                 C   
   | j jjS r   )r   r<   r\   r   r   r   r   type     
zHBFile.typec                 C   r   r   )r   r<   r]   r   r   r   r   r]     r   zHBFile.structurec                 C   r   r   )r   r<   r^   r   r   r   r   r^     r   zHBFile.storagec                 C   s   t | j| jS r   )r   r   r   r   r   r   r   read_matrix  s   zHBFile.read_matrixc                 C   s   t || j| jS r   )r   r   r   )rz   r9   r   r   r   write_matrix  s   zHBFile.write_matrixr   )r   r   r   r   r   r:   r;   r   r]   r^   r   r   r   r   r   r   r     s    





r   c                 C   sN   dd }t | dr|| S t| }||W  d   S 1 s w   Y  dS )a  Read HB-format file.

    Parameters
    ----------
    path_or_open_file : path-like or file-like
        If a file-like object, it is used as-is. Otherwise, it is opened
        before reading.

    Returns
    -------
    data : scipy.sparse.csc_matrix instance
        The data read from the HB file as a sparse matrix.

    Notes
    -----
    At the moment not the full Harwell-Boeing format is supported. Supported
    features are:

        - assembled, non-symmetric, real matrices
        - integer for pointer/indices
        - exponential format for float values, and int format

    Examples
    --------
    We can read and write a harwell-boeing format file:

    >>> from scipy.io import hb_read, hb_write
    >>> from scipy.sparse import csr_matrix, eye
    >>> data = csr_matrix(eye(3))  # create a sparse matrix
    >>> hb_write("data.hb", data)  # write a hb file
    >>> print(hb_read("data.hb"))  # read a hb file
      (0, 0)	1.0
      (1, 1)	1.0
      (2, 2)	1.0

    c                 S   s   t | }| S r   )r   r   r`   hbr   r   r   _get_matrix  s   zhb_read.<locals>._get_matrixr   N)hasattropen)path_or_open_filer   r   r   r   r   r     s   %

$r   c                    st   j dd du rt  fdd}t| dr|| S t| d}||W  d   S 1 s3w   Y  dS )a  Write HB-format file.

    Parameters
    ----------
    path_or_open_file : path-like or file-like
        If a file-like object, it is used as-is. Otherwise, it is opened
        before writing.
    m : sparse-matrix
        the sparse matrix to write
    hb_info : HBInfo
        contains the meta-data for write

    Returns
    -------
    None

    Notes
    -----
    At the moment not the full Harwell-Boeing format is supported. Supported
    features are:

        - assembled, non-symmetric, real matrices
        - integer for pointer/indices
        - exponential format for float values, and int format

    Examples
    --------
    We can read and write a harwell-boeing format file:

    >>> from scipy.io import hb_read, hb_write
    >>> from scipy.sparse import csr_matrix, eye
    >>> data = csr_matrix(eye(3))  # create a sparse matrix
    >>> hb_write("data.hb", data)  # write a hb file
    >>> print(hb_read("data.hb"))  # read a hb file
      (0, 0)	1.0
      (1, 1)	1.0
      (2, 2)	1.0

    Fr   Nc                    s   t |  }|S r   )r   r   r   r   r9   r   r   _set_matrix2  s   

zhb_write.<locals>._set_matrixr   w)r'   r
   rJ   r   r   )r   r9   r   r   r   r   r   r   r	     s   (

$r	   r   )r   ri   numpyr.   scipy.sparser   _fortran_format_parserr   r   r   __all__	Exceptionr   Warningr   r   r
   rY   r   r   r   r   r   r	   r   r   r   r   <module>   s$     
	=/0