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feat: adding APPEND option to mp_binarycopy.sas, and a new test (mp_binarycopy.test.sas). Closes #66

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Allan Bowe
2021-08-24 13:43:31 +03:00
parent ada9192337
commit d0bde62594
3 changed files with 167 additions and 12 deletions
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40
base/mp_binarycopy.sas
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@@ -9,10 +9,29 @@
%mp_binarycopy(inloc="/home/me/blah.txt", outref=_webout)
@param inloc full, quoted "path/and/filename.ext" of the object to be copied
@param outloc full, quoted "path/and/filename.ext" of object to be created
@param inref can override default input fileref to avoid naming clash
@param outref an override default output fileref to avoid naming clash
To append to a file, use the mode option, eg:
filename tmp1 temp;
filename tmp2 temp;
data _null_;
file tmp1;
put 'stacking';
run;
%mp_binarycopy(inref=tmp1, outref=tmp2, mode=APPEND)
%mp_binarycopy(inref=tmp1, outref=tmp2, mode=APPEND)
@param [in] inloc quoted "path/and/filename.ext" of the file to be copied
@param [out] outloc quoted "path/and/filename.ext" of the file to be created
@param [in] inref (____in) If provided, this fileref will take precedence over
the `inloc` parameter
@param [out] outref (____in) If provided, this fileref will take precedence
over the `outloc` parameter. It must already exist!
@param [in] mode (CREATE) Valid values:
@li CREATE - Create the file (even if it already exists)
@li APPEND - Append to the file (don't overwrite)
@returns nothing
@version 9.2
@@ -24,20 +43,29 @@
,outloc= /* full path and filename of object to be created */
,inref=____in /* override default to use own filerefs */
,outref=____out /* override default to use own filerefs */
,mode=CREATE
)/*/STORE SOURCE*/;
%local mod outmode;
%if &mode=APPEND %then %do;
%let mod=mod;
%let outmode='a';
%end;
%else %do;
%let outmode='o';
%end;
/* these IN and OUT filerefs can point to anything */
%if &inref = ____in %then %do;
filename &inref &inloc lrecl=1048576 ;
%end;
%if &outref=____out %then %do;
filename &outref &outloc lrecl=1048576 ;
filename &outref &outloc lrecl=1048576 &mod;
%end;
/* copy the file byte-for-byte */
data _null_;
length filein 8 fileid 8;
filein = fopen("&inref",'I',1,'B');
fileid = fopen("&outref",'O',1,'B');
fileid = fopen("&outref",&outmode,1,'B');
rec = '20'x;
do while(fread(filein)=0);
rc = fget(filein,rec,1);