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core/base/mf_writefile.sas

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SAS

/**
@file
@brief Creates a text file using pure macro
@details Creates a text file of up to 10 lines. If further lines are
desired, feel free to [create an issue](
https://github.com/sasjs/core/issues/new), or make a pull request!
The use of PARMBUFF was considered for this macro, but it would have made
things problematic for writing lines containing commas.
Usage:
%mf_writefile(&sasjswork/myfile.txt,l1=some content,l2=more content)
data _null_;
infile "&sasjswork/myfile.txt";
input;
list;
run;
@param [in] fpath Full path to file to be created or appended to
@param [in] mode= (O) Available options are A or O as follows:
@li A APPEND mode, writes new records after the current end of the file.
@li O OUTPUT mode, writes new records from the beginning of the file.
@param [in] l1= () First line
@param [in] l2= () Second line (etc through to l10)
<h4> Related Macros </h4>
@li mf_writefile.test.sas
@version 9.2
@author Allan Bowe
**/
/** @cond */
%macro mf_writefile(fpath,mode=O,l1=,l2=,l3=,l4=,l5=,l6=,l7=,l8=,l9=,l10=
)/*/STORE SOURCE*/;
%local fref rc fid i total_lines;
/* find number of lines by reference to first non-blank param */
%do i=10 %to 1 %by -1;
%if %str(&&l&i) ne %str() %then %goto continue;
%end;
%continue:
%let total_lines=&i;
%if %sysfunc(filename(fref,&fpath)) ne 0 %then %do;
%put &=fref &=fpath;
%put %str(ERR)OR: %sysfunc(sysmsg());
%return;
%end;
%let fid=%sysfunc(fopen(&fref,&mode));
%if &fid=0 %then %do;
%put %str(ERR)OR: %sysfunc(sysmsg());
%return;
%end;
%do i=1 %to &total_lines;
%let rc=%sysfunc(fput(&fid, &&l&i));
%let rc=%sysfunc(fwrite(&fid));
%end;
%let rc=%sysfunc(fclose(&fid));
%let rc=%sysfunc(filename(&fref));
%mend mf_writefile;
/** @endcond */