
    Mhk                    r   S r SSKJr  SSKJr  SSKJrJr  SSKrSSKJ	r	  SSK
rSSKJrJrJrJrJr  SSKJrJr  SS	KJr  SS
KJr  SSKrSSKJrJrJr  SSKJr  SSK J!s  J"s  J#r$  SSK%J&r&  \	(       a
  SSK'J(r(J)r)J*r*  \" S5      r+\" S5      r,SS jr-SS jr. " S S5      r/ " S S\&\R`                  5      r1g)a  
Read SAS7BDAT files

Based on code written by Jared Hobbs:
  https://bitbucket.org/jaredhobbs/sas7bdat

See also:
  https://github.com/BioStatMatt/sas7bdat

Partial documentation of the file format:
  https://cran.r-project.org/package=sas7bdat/vignettes/sas7bdat.pdf

Reference for binary data compression:
  http://collaboration.cmc.ec.gc.ca/science/rpn/biblio/ddj/Website/articles/CUJ/1992/9210/ross/ross.htm
    )annotations)abc)datetime	timedeltaN)TYPE_CHECKING)read_double_with_byteswapread_float_with_byteswapread_uint16_with_byteswapread_uint32_with_byteswapread_uint64_with_byteswap)Parserget_subheader_index)cast_from_unit_vectorized)EmptyDataError)	DataFrame	Timestampisna)
get_handle)
ReaderBase)CompressionOptionsFilePath
ReadBufferz
1970-01-01z
1960-01-01c                    [        U 5      (       a  [        R                  $ US:X  a  [        SSS5      [	        U S9-   $ US:X  a  [        SSS5      [	        U S9-   $ [        S5      e)Ns     )secondsd)dayszunit must be 'd' or 's')r   pdNaTr   r   
ValueError)sas_datetimeunits     H/var/www/html/env/lib/python3.13/site-packages/pandas/io/sas/sas7bdat.py_parse_datetimer&   A   sd    Lvvs{a#i&EEE	a#i\&BBB 233    c                H   [         [        -
  R                  S5      nUS:X  aH  [        U R                  SSS9nUR                  S5      U-   n[        R                  " X@R                  SS9$ [        R                  " U SS9U-   n[        R                  " US	U R                  SS
9$ )a  
Convert to Timestamp if possible, otherwise to datetime.datetime.
SAS float64 lacks precision for more than ms resolution so the fit
to datetime.datetime is ok.

Parameters
----------
sas_datetimes : {Series, Sequence[float]}
   Dates or datetimes in SAS
unit : {'d', 's'}
   "d" if the floats represent dates, "s" for datetimes

Returns
-------
Series
   Series of datetime64 dtype or datetime.datetime.
r   ms)r$   out_unitzM8[ms]FindexcopyzM8[D]dtypezM8[s]r/   r,   r-   )_sas_origin_unix_originas_unitr   _valuesviewr    Seriesr,   nparray)sas_datetimesr$   tdmillisdt64msvalss         r%   _convert_datetimesr>   O   s    $ 
$	-	-c	2Bs{*!!d
 X&+yy':':GGxxW5:yyWM4G4GeTTr'   c                  x    \ rS rSr% S\S'   S\S'   S\S'   S\S'   S\S	'   S\S
'                 SS jrSrg)_Columnm   intcol_idstr | bytesnamelabelformatbytesctypelengthc                L    Xl         X l        X0l        X@l        XPl        X`l        g N)rC   rE   rF   rG   rI   rJ   )selfrC   rE   rF   rG   rI   rJ   s          r%   __init___Column.__init__u   s"     	

r'   )rC   rI   rG   rF   rJ   rE   N)rC   rB   rE   rD   rF   rD   rG   rD   rI   rH   rJ   rB   returnNone)__name__
__module____qualname____firstlineno____annotations__rN   __static_attributes__ r'   r%   r@   r@   m   sl    K
LK 	
     
r'   r@   c                  x   \ rS rSr% SrS\S'   S\S'           S%                 S&S jjrS'S	 jrS'S
 jrS'S jr	S(S jr
S(S jrS)S jrS*S jrS+S jrS,S jrS-S jrS(S jrS.S jrS(S jrS(S jrS/S jrS/S jrS/S jrS/S jrS/S jrS/S jrS/S jrS/S jrS0S1S jjrS  rS)S! jrS" r S2S# jr!S$r"g)3SAS7BDATReader   a_  
Read SAS files in SAS7BDAT format.

Parameters
----------
path_or_buf : path name or buffer
    Name of SAS file or file-like object pointing to SAS file
    contents.
index : column identifier, defaults to None
    Column to use as index.
convert_dates : bool, defaults to True
    Attempt to convert dates to Pandas datetime values.  Note that
    some rarely used SAS date formats may be unsupported.
blank_missing : bool, defaults to True
    Convert empty strings to missing values (SAS uses blanks to
    indicate missing character variables).
chunksize : int, defaults to None
    Return SAS7BDATReader object for iterations, returns chunks
    with given number of lines.
encoding : str, 'infer', defaults to None
    String encoding acc. to Python standard encodings,
    encoding='infer' tries to detect the encoding from the file header,
    encoding=None will leave the data in binary format.
convert_text : bool, defaults to True
    If False, text variables are left as raw bytes.
convert_header_text : bool, defaults to True
    If False, header text, including column names, are left as raw
    bytes.
rB   _int_lengthzbytes | None_cached_pageNc
           	        X l         X0l        X@l        XPl        X`l        Xpl        Xl        SU l        SU l        / U l	        / U l
        / U l        / U l        / U l        S U l        / U l        / U l        / U l        SU l        SU l        SU l        [)        USSU	S9U l        U R*                  R,                  U l        U R0                  U R2                  U R4                  U R6                  U R8                  U R:                  U R<                  U R>                  S /	U l          U RC                  5         U RE                  5         g ! [F         a    U RI                  5         e f = f)Nzlatin-1r'   r   rbF)is_textcompression)%r,   convert_datesblank_missing	chunksizeencodingconvert_textconvert_header_textdefault_encodingra   column_names_rawcolumn_namescolumn_formatscolumns%_current_page_data_subheader_pointersr]   _column_data_lengths_column_data_offsets_column_types_current_row_in_file_index_current_row_on_page_indexr   handleshandle_path_or_buf_process_rowsize_subheader_process_columnsize_subheader_process_subheader_counts_process_columntext_subheader_process_columnname_subheader#_process_columnattributes_subheader_process_format_subheader_process_columnlist_subheader_subheader_processors_get_properties_parse_metadata	Exceptionclose)
rM   path_or_bufr,   rb   rc   rd   re   rf   rg   ra   s
             r%   rN   SAS7BDATReader.__init__   sR    
**" (#6  )-//113&(LN2 /1!/1!*,*+'*+'*+'!u+
 !LL// ++..**....44**..
&
"	  "  " 	JJL	s    D; ;Ec                \    [         R                  " U R                  [         R                  S9$ )z5Return a numpy int64 array of the column data lengthsr.   )r7   asarrayrn   int64rM   s    r%   column_data_lengths"SAS7BDATReader.column_data_lengths       zz$33288DDr'   c                \    [         R                  " U R                  [         R                  S9$ )z0Return a numpy int64 array of the column offsetsr.   )r7   r   ro   r   r   s    r%   column_data_offsets"SAS7BDATReader.column_data_offsets   r   r'   c                h    [         R                  " U R                  [         R                  " S5      S9$ )zR
Returns a numpy character array of the column types:
   s (string) or d (double)
S1r.   )r7   r   rp   r/   r   s    r%   column_typesSAS7BDATReader.column_types   s#    
 zz$,,BHHTNCCr'   c                8    U R                   R                  5         g rL   )rs   r   r   s    r%   r   SAS7BDATReader.close   s    r'   c                
   U R                   R                  S5        U R                   R                  S5      U l        U R                  S[	        [
        R                  5       [
        R                  :w  a  [        S5      eU R                  [
        R                  [
        R                  5      nU[
        R                  :X  a9  SU l        SU l        [
        R                  U l        [
        R                   U l        O8SU l        [
        R$                  U l        [
        R&                  U l        SU l        U R                  [
        R(                  [
        R*                  5      nU[
        R,                  :X  a  [
        R.                  nOSnU R                  [
        R0                  [
        R2                  5      nUS:X  a   S	U l        [6        R8                  S
:H  U l        OSU l        [6        R8                  S:H  U l        U R                  [
        R<                  [
        R>                  5      S   nU[
        R@                  ;   a:  [
        R@                  U   U l!        U RD                  S:X  a  U RB                  U l"        OSU S3U l!        [G        SSS5      nU RI                  [
        RJ                  U-   [
        RL                  5      nU[N        RP                  " USS9-   U l)        U RI                  [
        RT                  U-   [
        RV                  5      nU[N        RP                  " USS9-   U l,        U R[                  [
        R\                  U-   [
        R^                  5      U l0        U R                   R                  U R`                  S-
  5      nU =R                  U-  sl        [	        U R                  5      U R`                  :w  a  [        S5      eU R[                  [
        Rb                  U-   [
        Rd                  5      U l3        g )Nr   i   z'magic number mismatch (not a SAS file?)T   F      <big>littleinferzunknown (code=)r   r   r   )r$   z*The SAS7BDAT file appears to be truncated.)4ru   seekreadr]   lenconstmagicr"   _read_bytesalign_1_offsetalign_1_lengthu64_byte_checker_valueU64r\   page_bit_offset_x64_page_bit_offsetsubheader_pointer_length_x64_subheader_pointer_lengthpage_bit_offset_x86subheader_pointer_length_x86align_2_offsetalign_2_lengthalign_1_checker_valuealign_2_valueendianness_offsetendianness_length
byte_ordersys	byteorderneed_byteswapencoding_offsetencoding_lengthencoding_namesinferred_encodingre   r   _read_floatdate_created_offsetdate_created_lengthr    to_timedeltadate_createddate_modified_offsetdate_modified_lengthdate_modified
_read_uintheader_size_offsetheader_size_lengthheader_lengthpage_size_offsetpage_size_length_page_length)rM   bufalign1epochxs        r%   r   SAS7BDATReader._get_properties   s   q! --2237QU[[!12ekkAFGG u33U5I5IJ%...DH D$)$=$=D!-2-O-OD*DH$)$=$=D!-2-O-OD* Du33U5I5IJ%---((FF u668O8OP'>!DO!$%!7D!DO!$(!:D u44e6K6KLQO%&&&%*%9%9#%>D"}}' $ 6 6'5cU!%<D" q!$%%.0I0I
 "BOOAC$@@&&/1K1K
 #R__QS%AA!__$$v-u/G/G

 $$T%7%7#%=>S  t  !T%7%77IJJ OO""V+U-C-C
r'   c                    U R                  U R                  =(       d    SS9nUR                  (       a  U R                  5         [        eU$ )Nr   )nrows)r   rd   emptyr   StopIteration)rM   das     r%   __next__SAS7BDATReader.__next__A  s6    YYT^^0qY188JJL	r'   c                    U R                   c   eUS:X  a   [        U R                   XR                  5      $ US:X  a   [        U R                   XR                  5      $ U R	                  5         [        S5      e)Nr   r   zinvalid float width)r]   r	   r   r   r   r"   rM   offsetwidths      r%   r   SAS7BDATReader._read_floatI  sw      ,,,A:+!!6+=+=  aZ,!!6+=+=  JJL233r'   c                p   U R                   c   eUS:X  a  U R                  US5      S   $ US:X  a   [        U R                   XR                  5      $ US:X  a   [	        U R                   XR                  5      $ US:X  a   [        U R                   XR                  5      $ U R                  5         [        S5      e)Nr   r      r   r   zinvalid int width)r]   r   r
   r   r   r   r   r"   r   s      r%   r   SAS7BDATReader._read_uintX  s      ,,,A:##FA.q11aZ,!!6+=+=  aZ,!!6+=+=  aZ,!!6+=+=  JJL011r'   c                    U R                   c   eX-   [        U R                   5      :  a  U R                  5         [        S5      eU R                   XU-    $ )NzThe cached page is too small.)r]   r   r   r"   rM   r   rJ   s      r%   r   SAS7BDATReader._read_bytesl  sS      ,,,?S!2!233JJL<==  6/::r'   c                `    U R                  U R                  X5      R                  S5      5      $ )N     )_convert_header_textr   rstripr   s      r%   _read_and_convert_header_text,SAS7BDATReader._read_and_convert_header_texts  s.    ((V,33H=
 	
r'   c                .   SnU(       d  U R                   R                  U R                  5      U l        [	        U R                  5      S::  a  g [	        U R                  5      U R                  :w  a  [        S5      eU R                  5       nU(       d  M  g g )NFr   z2Failed to read a meta data page from the SAS file.)ru   r   r   r]   r   r"   _process_page_meta)rM   dones     r%   r   SAS7BDATReader._parse_metadatax  sy     $ 1 1 6 6t7H7H ID4$$%*4$$%):):: !UVV**,D $r'   c                   U R                  5         [        R                  [        R                  [        R                  /-   nU R
                  U;   a  U R                  5         U R
                  [        R                  :H  nU R
                  [        R                  :H  n[        U=(       d    U=(       d    U R                  / :g  5      $ rL   )
_read_page_headerr   page_meta_typespage_amd_typepage_mix_type_current_page_type_process_page_metadatapage_data_typeboolrm   )rM   ptis_data_pageis_mix_pages       r%   r   !SAS7BDATReader._process_page_meta  s     ""e&9&95;N;N%OO""b('')..%2F2FF--1D1DD @@99R?
 	
r'   c                   U R                   n[        R                  U-   nU R                  U[        R                  5      [        R
                  -  U l        [        R                  U-   nU R                  U[        R                  5      U l	        [        R                  U-   nU R                  U[        R                  5      U l        g rL   )r   r   page_type_offsetr   page_type_lengthpage_type_mask2r   block_count_offsetblock_count_length_current_page_block_countsubheader_count_offsetsubheader_count_length_current_page_subheaders_count)rM   
bit_offsettxs      r%   r    SAS7BDATReader._read_page_header  s    **
##j0OOB 6 67%:O:OO 	 %%
2)-U=U=U)V&))J6.2oo,,/
+r'   c                V   U R                   n[        U R                  5       GH  n[        R                  U-   nX0R
                  U-  -   nU R                  X@R                  5      nX@R                  -  nU R                  X@R                  5      nX@R                  -  nU R                  US5      nUS-  nU R                  US5      nUS:X  d  U[        R                  :X  a  M  U R                  XPR                  5      n	[        U	5      n
U R                  U
   nUc  U[        R                  S4;   nU[        R                  :H  nU R                  (       a-  U(       a&  U(       a  U R                  R!                  XV45        GM]  U R#                  5         [%        SU	 35      eU" XV5        GM     g )Nr   r   zUnknown subheader signature )r   ranger  r   subheader_pointers_offsetr   r   r\   truncated_subheader_idr   r   r~   compressed_subheader_idcompressed_subheader_typera   rm   appendr   r"   )rM   r  ir   total_offsetsubheader_offsetsubheader_lengthsubheader_compressionsubheader_typesubheader_signaturesubheader_indexsubheader_processorf1f2s                 r%   r   %SAS7BDATReader._process_page_metadata  s   **
t::;A44zAF!$B$BQ$FFL#|=M=MN,,,L#|=M=MN,,,L$(OOL!$D!AL!__\1=N !A%(E,H,HH"&"2"23CEUEU"V12EFO"&"<"<_"M"**u/L/La.PP#u'F'FF##r>>EE)< JJL$67J6KL  $$4GM <r'   c                |   U R                   nUnUnU R                  (       a  US-  nUS-  nO
US-  nUS-  nU R                  U[        R                  U-  -   U5      U l        U R                  U[        R                  U-  -   U5      U l        U R                  U[        R                  U-  -   U5      U l	        U R                  U[        R                  U-  -   U5      U l        [        R                  U-  nU R                  X-   U5      U l        U R                  US5      U l        U R                  US5      U l        g )Ni  i  ib  iz  r   )r\   r   r   r   row_length_offset_multiplier
row_lengthrow_count_offset_multiplier	row_countcol_count_p1_multipliercol_count_p1col_count_p2_multipliercol_count_p2'row_count_on_mix_page_offset_multiplier_mix_page_row_count_lcs_lcp)rM   r   rJ   int_len
lcs_offset
lcp_offsetmxs          r%   rv   )SAS7BDATReader._process_rowsize_subheader  s/   ""

88#J#J#J#J//U77'AA
 U66@@
 !OOU22W<<g
 !OOU22W<<g
 ::WD#'??6;#H OOJ2	OOJ2	r'   c           	        U R                   nX-  nU R                  X5      U l        U R                  U R                  -   U R                  :w  a4  [        SU R                   SU R                   SU R                   S35        g g )Nz Warning: column count mismatch (z + z != z)
)r\   r   column_countr   r"  print)rM   r   rJ   r'  s       r%   rw   ,SAS7BDATReader._process_columnsize_subheader  s    "" OOF<t000D4E4EE243D3D2ES$$%T$*;*;)<CA Fr'   c                    g rL   rX   r   s      r%   rx   (SAS7BDATReader._process_subheader_counts  s    r'   c                   XR                   -  nU R                  U[        R                  5      nU R	                  X5      nUSU R                  S5      nU R                  R                  U5        [        U R                  5      S:X  Ga  Sn[        R                   H  nXu;   d  M
  UnM     X`l
        XR                   -  nUS-   nU R                  (       a  US-  nU R	                  XR                  5      nUR                  S5      nUS:X  aR  SU l        US-   nU R                  (       a  US-  nU R	                  XR                  5      nUSU R                   U l        OU[        R                  :X  aK  US	-   nU R                  (       a  US-  nU R	                  XR                  5      nUSU R                   U l        OaU R                  S:  aQ  SU l        US-   nU R                  (       a  US-  nU R	                  XR                  5      nUSU R                   U l        [!        U S
5      (       a!  U R#                  U R                  5      U l        g g g )Nr   r   r   r'      r           (   creator_proc)r\   r   r   text_block_size_lengthr   r   ri   r  r   compression_literalsra   r   r&  r%  r7  rle_compressionhasattrr   )	rM   r   rJ   text_block_sizer   	cname_rawcompression_literalcloffset1s	            r%   ry   ,SAS7BDATReader._process_columntext_subheader  s   """//&%2N2NOv7/*11(;	$$Y/t$$%*"%00?*,' 1  3&&&FrkGxx1""7II6C"%**W"5"c)	 2+88qLG&&w		:$'DII$6!$(=(== 2+88qLG&&w		:$'DII$6!Q	 2+88qLG&&w		:$'DII$6!t^,,$($=$=d>O>O$P! -E +r'   c                   U R                   nX-  nUSU-  -
  S-
  S-  n[        U5       GH!  nU[        R                  US-   -  -   [        R                  -   nU[        R                  US-   -  -   [        R
                  -   nU[        R                  US-   -  -   [        R                  -   nU R                  U[        R                  5      n	U R                  U[        R                  5      n
U R                  U[        R                  5      nU R                  U	   nXX-    nU R                  R                  U R                  U5      5        GM$     g )Nr      r   r   )r\   r  r   column_name_pointer_length!column_name_text_subheader_offsetcolumn_name_offset_offsetcolumn_name_length_offsetr   !column_name_text_subheader_lengthcolumn_name_offset_lengthcolumn_name_length_lengthri   rj   r  r   )rM   r   rJ   r'  column_name_pointers_countr  text_subheadercol_name_offsetcol_name_lengthidx
col_offsetcol_lenname_rawcnames                 r%   rz   ,SAS7BDATReader._process_columnname_subheader   sS   ""&,q7{&:R&?A%E"12A22a!e<=99:  22a!e<=112  22a!e<=112  // G GC !@!@J ooou7V7VWG,,S1H**>?E$$T%>%>u%EF7 3r'   c                x   U R                   nUSU-  -
  S-
  US-   -  n[        U5       GH  nX-   [        R                  -   XSS-   -  -   nUSU-  -   [        R                  -   XSS-   -  -   nUSU-  -   [        R
                  -   XSS-   -  -   nU R                  Xc5      n	U R                  R                  U	5        U R                  U[        R                  5      n	U R                  R                  U	5        U R                  U[        R                  5      n	U R                  R                  U	S:X  a  SOS5        GM     g )Nr   rC  r   r      d   s)r\   r  r   column_data_offset_offsetcolumn_data_length_offsetcolumn_type_offsetr   ro   r  column_data_length_lengthrn   column_type_lengthrp   )
rM   r   rJ   r'  column_attributes_vectors_countr  col_data_offsetcol_data_len	col_typesr   s
             r%   r{   2SAS7BDATReader._process_columnattributes_subheaderA  s>   ""+1AK+?"+D'TU+*V'67A 5#B#BBQTU+EVV  g+112 {#$  W$u'?'??!QR{BSS  9A%%,,Q/e.M.MNA%%,,Q/	5+C+CDA%%a1fd$?+ 8r'   c                    g rL   rX   r   s      r%   r}   ,SAS7BDATReader._process_columnlist_subheader[  s    r'   c           	        U R                   nU[        R                  -   SU-  -   nU[        R                  -   SU-  -   nU[        R                  -   SU-  -   nU[        R
                  -   SU-  -   nU[        R                  -   SU-  -   nU[        R                  -   SU-  -   n	U R                  U[        R                  5      n
[        U
[        U R                  5      S-
  5      nU R                  U[        R                  5      nU R                  U[        R                  5      nU R                  U[        R                  5      n[        U[        U R                  5      S-
  5      nU R                  U[        R                   5      nU R                  U	[        R"                  5      nU R                  U   nU R%                  UXU-    5      nU R                  U   nU R%                  UXU-    5      n[        U R&                  5      n[)        UU R*                  U   UUU R,                  U   U R.                  U   5      nU R0                  R3                  U5        U R&                  R3                  U5        g )N   r   )r\   r   )column_format_text_subheader_index_offsetcolumn_format_offset_offsetcolumn_format_length_offset(column_label_text_subheader_index_offsetcolumn_label_offset_offsetcolumn_label_length_offsetr   )column_format_text_subheader_index_lengthminr   ri   column_format_offset_lengthcolumn_format_length_length(column_label_text_subheader_index_lengthcolumn_label_offset_lengthcolumn_label_length_lengthr   rl   r@   rj   rp   rn   rk   r  )rM   r   rJ   r'  text_subheader_formatcol_format_offsetcol_format_lentext_subheader_labelcol_label_offsetcol_label_lenr   
format_idxformat_start
format_len	label_idxlabel_start	label_lenlabel_namescolumn_labelformat_namescolumn_formatcurrent_column_numbercols                          r%   r|   (SAS7BDATReader._process_format_subheader_  sT   ""UDDDq7{R 	 #U%F%FFWT%"C"CCa'kQUCCCa'kQ 	 "E$D$DDq7{R!A!AAAKOOO!5#R#R
 C 5 56:;
u@@
 __^U5V5VW
OO %"P"P
	 	3t'<'<#=#AB	ooe>>
 OOM53S3ST	++I600I&=>
 ,,Z811z(AB
 !$DLL 1!3445%%&;<
 	""=1C r'   c                   Uc  U R                   b  U R                   nOUc  U R                  n[        U R                  5      S:X  a  U R	                  5         [        S5      eUS:  a$  U R                  U R                  :  a
  [        5       $ [        XR                  U R                  -
  5      nU R                  R                  S5      nU R                  R                  S5      n[        R                  " X14[        S9U l        [        R                  " USU-  4[        R                  S9U l        SU l        [%        U 5      nUR'                  U5        U R)                  5       nU R*                  b  UR-                  U R*                  5      nU$ )Nr   zNo columns to parse from filerV  rW  r.   r   )rd   r  r   rp   r   r   rq   r   rm  countr7   r   object_string_chunkzerosuint8_byte_chunk_current_row_in_chunk_indexr   r   _chunk_to_dataframer,   	set_index)rM   r   ndnsprslts         r%   r   SAS7BDATReader.read  s3   M :NNE]NNEt!!"a'JJL !@AA1988DNNJ;E>>D,K,KKL%%d+%%d+XXrk@88RUO288D+,(4L	u'')::!>>$**-Dr'   c                   / U l         U R                  R                  U R                  5      U l        [        U R                  5      S::  a  g[        U R                  5      U R                  :w  aC  U R                  5         S[        U R                  5      S SU R                  S S3n[        U5      eU R                  5         U R                  [        R                  ;   a  U R                  5         U R                  [        R                  [        R                  [        R                  /-   ;  a  U R                  5       $ g)Nr   Tz-failed to read complete page from file (read r   z of z bytes)F)rm   ru   r   r   r]   r   r   r"   r   r   r   r   r   r   r   _read_next_page)rM   msgs     r%   r  SAS7BDATReader._read_next_page  s   572 --2243D3DEt  !Q&""#t'8'88JJL?t(()!,D1B1B10EWN  S/! ""e&;&;;'')""%*?*?  C
 +
 
 ''))r'   c                
   U R                   nU R                  n[        X!-
  U5      n0 nSu  pV[        U R                  5       GH  nU R                  U   nU R
                  U   S:X  a  U R                  US S 24   R                  U R                  S-   S9n	[        R                  " U	[        R                  USS9XH'   U R                  (       ac  U R                  U   [        R                   ;   a  [#        XH   S5      XH'   O1U R                  U   [        R$                  ;   a  [#        XH   S5      XH'   US-  nM  U R
                  U   S	:X  an  [        R                  " U R&                  US S 24   USS
9XH'   U R(                  (       a,  U R*                  b  U R-                  XH   R.                  5      XH'   US-  nGMv  U R1                  5         [3        S[5        U R
                  U   5       35      e   [7        X@R                  USS9n
U
$ )N)r   r   rV  r   r.   Fr0   r   r   rW  r+   zunknown column type )rl   r,   r-   )r  rq   r  r-  rj   rp   r  r5   r   r    r6   r7   float64rb   rk   r   sas_date_formatsr>   sas_datetime_formatsr  rf   re   _decode_stringstrr   r"   reprr   )rM   nmixr  jsjbjrE   col_arrdfs              r%   r  "SAS7BDATReader._chunk_to_dataframe  s   ,,++15!_t(()A$$Q'D!!!$,**2q5166T__s=R6SYYwbjjQVW
%%**1-1G1GG%7
C%H
,,Q/53M3MM%7
C%H
a##A&$.YYt'9'9"a%'@QVW
$$$--*C!%!4!4TZ^^!DDJa

 #7T=O=OPQ=R8S7T!UVV' ** t%6%6buM	r'   c                ^    UR                  U R                  =(       d    U R                  5      $ rL   )decodere   rh   rM   bs     r%   r  SAS7BDATReader._decode_string  s     xx>)>)>??r'   c                J    U R                   (       a  U R                  U5      $ U$ rL   )rg   r  r  s     r%   r   #SAS7BDATReader._convert_header_text  s!    ##&&q))Hr'   )1r   r  r]   rn   ro   rp   r   rm   r  r   r  rq   rr   r\   r&  r%  r$  r   r   ru   r  r   r~   rc   r   rd   r   r"  r-  rk   rj   ri   rl   ra   rb   rg   rf   r7  r   r   rh   re   rs   r   r,   r   r   r  r  )NTTNNTTr   )r   zFilePath | ReadBuffer[bytes]rb   r   rc   r   rd   
int | Nonere   z
str | Nonerf   r   rg   r   ra   r   rP   rQ   )rP   z
np.ndarray)rP   rQ   )rP   r   )r   rB   r   rB   )r   rB   r   rB   rP   rB   )r   rB   rJ   rB   )r   rB   rJ   rB   rP   rD   )rP   r   )r   rB   rJ   rB   rP   rQ   rL   )r   r  rP   r   )r  rH   rP   rD   )#rR   rS   rT   rU   __doc__rV   rN   r   r   r   r   r   r   r   r   r   r   r   r   r   r   rv   rw   rx   ry   rz   r{   r}   r|   r   r  r  r  r   rW   rX   r'   r%   rZ   rZ      s"   < 
 "" $#!$(*1=1= 	=
 = = = = "= (= 
=~EEDD
L42(;

-

)HV3<+QZGB@45!n>2>@r'   rZ   )r#   floatr$   r  )r9   	pd.Seriesr$   r  rP   r  )2r  
__future__r   collectionsr   r   r   r   typingr   numpyr7   pandas._libs.byteswapr   r	   r
   r   r   pandas._libs.sasr   r   pandas._libs.tslibs.conversionr   pandas.errorsr   pandasr    r   r   r   pandas.io.commonr   pandas.io.sas.sas_constantsiosassas_constantsr   pandas.io.sas.sasreaderr   pandas._typingr   r   r   r2   r1   r&   r>   r@   IteratorrZ   rX   r'   r%   <module>r     s    #       E (   ( + + .  &%4U< 6l	Z l	r'   