Merge pull request #109 from sasjs/issue108

fix: rebuilding mp_searchdata into data step to avoid SQL warning.

.git-hooks/pre-commit

@@ -1,2 +1,11 @@
 #!/bin/sh
-sasjs lint
+sasjs lint
+
+# Avoid commits to the master branch
+BRANCH=`git rev-parse --abbrev-ref HEAD`
+
+if [[ "$BRANCH" =~ ^(master|main|develop)$ ]]; then
+  echo "You are on branch $BRANCH. Are you sure you want to commit to this branch?"
+  echo "If so, commit with -n to bypass the pre-commit hook."
+  exit 1
+fi

all.sas

@@ -6169,6 +6169,7 @@ create table &outds as
 
   @param [in] libds dataset to hash
   @param [in] salt= Provide a salt (could be, for instance, the dataset name)
+  @param [in] iftrue= A condition under which the macro should be executed.
   @param [out] outds= (work.mf_hashdataset) The output dataset to create. This
   will contain one column (hashkey) with one observation (a hex32.
   representation of the input hash)
@@ -6183,10 +6184,14 @@ create table &outds as
 %macro mp_hashdataset(
   libds,
   outds=,
-  salt=
+  salt=,
+  iftrue=%str(1=1)
 )/*/STORE SOURCE*/;
+
+  %if not(%eval(%unquote(&iftrue))) %then %return;
+
   %if %mf_getattrn(&libds,NLOBS)=0 %then %do;
-    %put %str(WARN)ING: Dataset &libds is empty;, or is not a dataset;
+    %put %str(WARN)ING: Dataset &libds is empty, or is not a dataset;
   %end;
   %else %if %mf_getattrn(&libds,NLOBS)<0 %then %do;
     %put %str(ERR)OR: Dataset &libds is not a dataset;
@@ -6367,15 +6372,15 @@ filename &tempref clear;
     compress=CHAR           /* default is none so ensure we have something!   */
     datastmtchk=ALLKEYWORDS /* protection from overwriting input datasets     */
     errorcheck=STRICT       /* catch errors in libname/filename statements    */
-    fmterr                  /* ensure error when a format cannot be found     */
-    mergenoby=ERROR         /*
+    fmterr                  /* ensure err   when a format cannot be found     */
+    mergenoby=%str(ERR)OR   /* Throw err   when a merge has no BY variables   */
     missing=.    /* some sites change this which causes hard to detect errors */
     noquotelenmax           /* avoid warnings for long strings                */
     noreplace               /* avoid overwriting permanent datasets           */
     ps=max                  /* reduce log size slightly                       */
     validmemname=COMPATIBLE /* avoid special characters etc in table names    */
     validvarname=V7         /* avoid special characters etc in variable names */
-    varlenchk=ERROR         /* fail hard if truncation (data loss) can result */
+    varlenchk=%str(ERR)OR   /* fail hard if truncation (data loss) can result */
   ;
 
 %mend mp_init;/**
@@ -7737,22 +7742,28 @@ drop table &tempds;
   Usage:
 
       %mp_searchdata(lib=sashelp, string=Jan)
-      %mp_searchdata(lib=sashelp, numval=1)
+      %mp_searchdata(lib=sashelp, ds=bird, numval=1)
+      %mp_searchdata(lib=sashelp, ds=class, string=l,outobs=5)
 
 
   Outputs zero or more tables to an MPSEARCH library with specific records.
 
-  @param lib=  the libref to search (should be already assigned)
-  @param ds= the dataset to search (leave blank to search entire library)
-  @param string= the string value to search
-  @param numval= the numeric value to search (must be exact)
-  @param outloc= the directory in which to create the output datasets with
-    matching rows.  Will default to a subfolder in the WORK library.
-  @param outobs= set to a positive integer to restrict the number of
+  @param [in] lib=  The libref to search (should be already assigned)
+  @param [in] ds= The dataset to search (leave blank to search entire library)
+  @param [in] string= String value to search (case sensitive, can be partial)
+  @param [in] numval= Numeric value to search (must be exact)
+  @param [out] outloc= (0) Optionally specify the directory in which to
+    create the the output datasets with matching rows.  By default it will
+    write them to a temporary subdirectory within the WORK folder.
+  @param [out] outlib= (MPSEARCH) Assign a different libref to the output
+    library containing the matching datasets / records
+  @param [in] outobs= set to a positive integer to restrict the number of
     observations
-  @param filter_text= add a (valid) filter clause to further filter the results
+  @param [in] filter_text= (1=1) Add a (valid) filter clause to further filter
+    the results.
 
   <h4> SAS Macros </h4>
+  @li mf_getuniquename.sas
   @li mf_getvarlist.sas
   @li mf_getvartype.sas
   @li mf_mkdir.sas
@@ -7762,11 +7773,12 @@ drop table &tempds;
   @author Allan Bowe
 **/
 
-%macro mp_searchdata(lib=sashelp
+%macro mp_searchdata(lib=
   ,ds=
   ,string= /* the query will use a contains (?) operator */
   ,numval= /* numeric must match exactly */
-  ,outloc=%sysfunc(pathname(work))/mpsearch
+  ,outloc=0
+  ,outlib=MPSEARCH
   ,outobs=-1
   ,filter_text=%str(1=1)
 )/*/STORE SOURCE*/;
@@ -7783,8 +7795,12 @@ drop table &tempds;
 %if &string = %then %let type=N;
 %else %let type=C;
 
+%if "&outloc"="0" %then %do;
+  %let outloc=%sysfunc(pathname(work))/%mf_getuniquename();
+%end;
+
 %mf_mkdir(&outloc)
-libname mpsearch "&outloc";
+libname &outlib "&outloc";
 
 /* get the list of tables in the library */
 proc sql noprint;
@@ -7796,11 +7812,6 @@ select distinct memname into: table_list separated by ' '
 %end;
   ;
 /* check that we have something to check */
-proc sql
-%if &outobs>-1 %then %do;
-  outobs=&outobs
-%end;
-;
 %if %length(&table_list)=0 %then %put library &lib contains no tables!;
 /* loop through each table */
 %else %do table_num=1 %to %sysfunc(countw(&table_list,%str( )));
@@ -7811,10 +7822,10 @@ proc sql
   %end;
   %else %do;
     %let check_tm=%sysfunc(datetime());
-    /* build sql statement */
-    create table mpsearch.&table as select * from &lib..&table
-      where %unquote(&filter_text) and
-    (0
+    /* prep input */
+    data &outlib..&table;
+      set &lib..&table;
+      where %unquote(&filter_text) and ( 0
     /* loop through columns */
     %do colnum=1 %to %sysfunc(countw(&vars,%str( )));
       %let col=%scan(&vars,&colnum,%str( ));
@@ -7828,15 +7839,20 @@ proc sql
         or ("&col"n = &numval)
       %end;
     %end;
-    );
+      );
+    %if &outobs>-1 %then %do;
+      if _n_ > &outobs then stop;
+    %end;
+    run;
     %put Search query for &table took
       %sysevalf(%sysfunc(datetime())-&check_tm) seconds;
-    %if &sqlrc ne 0 %then %do;
-      %put %str(WAR)NING: SQLRC=&sqlrc when processing &table;
+    %if &syscc ne 0 %then %do;
+      %put %str(ERR)ROR: SYSCC=&syscc when processing &lib..&table;
       %return;
     %end;
-    %if %mf_nobs(mpsearch.&table)=0 %then %do;
-      drop table mpsearch.&table;
+    %if %mf_nobs(&outlib..&table)=0 %then %do;
+      proc sql;
+      drop table &outlib..&table;
     %end;
   %end;
 %end;

base/mp_hashdataset.sas

@@ -21,6 +21,7 @@
 
   @param [in] libds dataset to hash
   @param [in] salt= Provide a salt (could be, for instance, the dataset name)
+  @param [in] iftrue= A condition under which the macro should be executed.
   @param [out] outds= (work.mf_hashdataset) The output dataset to create. This
   will contain one column (hashkey) with one observation (a hex32.
   representation of the input hash)
@@ -35,10 +36,14 @@
 %macro mp_hashdataset(
   libds,
   outds=,
-  salt=
+  salt=,
+  iftrue=%str(1=1)
 )/*/STORE SOURCE*/;
+
+  %if not(%eval(%unquote(&iftrue))) %then %return;
+
   %if %mf_getattrn(&libds,NLOBS)=0 %then %do;
-    %put %str(WARN)ING: Dataset &libds is empty;, or is not a dataset;
+    %put %str(WARN)ING: Dataset &libds is empty, or is not a dataset;
   %end;
   %else %if %mf_getattrn(&libds,NLOBS)<0 %then %do;
     %put %str(ERR)OR: Dataset &libds is not a dataset;

base/mp_init.sas

@@ -40,15 +40,15 @@
     compress=CHAR           /* default is none so ensure we have something!   */
     datastmtchk=ALLKEYWORDS /* protection from overwriting input datasets     */
     errorcheck=STRICT       /* catch errors in libname/filename statements    */
-    fmterr                  /* ensure error when a format cannot be found     */
-    mergenoby=ERROR         /*
+    fmterr                  /* ensure err   when a format cannot be found     */
+    mergenoby=%str(ERR)OR   /* Throw err   when a merge has no BY variables   */
     missing=.    /* some sites change this which causes hard to detect errors */
     noquotelenmax           /* avoid warnings for long strings                */
     noreplace               /* avoid overwriting permanent datasets           */
     ps=max                  /* reduce log size slightly                       */
     validmemname=COMPATIBLE /* avoid special characters etc in table names    */
     validvarname=V7         /* avoid special characters etc in variable names */
-    varlenchk=ERROR         /* fail hard if truncation (data loss) can result */
+    varlenchk=%str(ERR)OR   /* fail hard if truncation (data loss) can result */
   ;
 
 %mend mp_init;

base/mp_searchdata.sas

@@ -11,22 +11,28 @@
   Usage:
 
       %mp_searchdata(lib=sashelp, string=Jan)
-      %mp_searchdata(lib=sashelp, numval=1)
+      %mp_searchdata(lib=sashelp, ds=bird, numval=1)
+      %mp_searchdata(lib=sashelp, ds=class, string=l,outobs=5)
 
 
   Outputs zero or more tables to an MPSEARCH library with specific records.
 
-  @param lib=  the libref to search (should be already assigned)
-  @param ds= the dataset to search (leave blank to search entire library)
-  @param string= the string value to search
-  @param numval= the numeric value to search (must be exact)
-  @param outloc= the directory in which to create the output datasets with
-    matching rows.  Will default to a subfolder in the WORK library.
-  @param outobs= set to a positive integer to restrict the number of
+  @param [in] lib=  The libref to search (should be already assigned)
+  @param [in] ds= The dataset to search (leave blank to search entire library)
+  @param [in] string= String value to search (case sensitive, can be partial)
+  @param [in] numval= Numeric value to search (must be exact)
+  @param [out] outloc= (0) Optionally specify the directory in which to
+    create the the output datasets with matching rows.  By default it will
+    write them to a temporary subdirectory within the WORK folder.
+  @param [out] outlib= (MPSEARCH) Assign a different libref to the output
+    library containing the matching datasets / records
+  @param [in] outobs= set to a positive integer to restrict the number of
     observations
-  @param filter_text= add a (valid) filter clause to further filter the results
+  @param [in] filter_text= (1=1) Add a (valid) filter clause to further filter
+    the results.
 
   <h4> SAS Macros </h4>
+  @li mf_getuniquename.sas
   @li mf_getvarlist.sas
   @li mf_getvartype.sas
   @li mf_mkdir.sas
@@ -36,11 +42,12 @@
   @author Allan Bowe
 **/
 
-%macro mp_searchdata(lib=sashelp
+%macro mp_searchdata(lib=
   ,ds=
   ,string= /* the query will use a contains (?) operator */
   ,numval= /* numeric must match exactly */
-  ,outloc=%sysfunc(pathname(work))/mpsearch
+  ,outloc=0
+  ,outlib=MPSEARCH
   ,outobs=-1
   ,filter_text=%str(1=1)
 )/*/STORE SOURCE*/;
@@ -57,8 +64,12 @@
 %if &string = %then %let type=N;
 %else %let type=C;
 
+%if "&outloc"="0" %then %do;
+  %let outloc=%sysfunc(pathname(work))/%mf_getuniquename();
+%end;
+
 %mf_mkdir(&outloc)
-libname mpsearch "&outloc";
+libname &outlib "&outloc";
 
 /* get the list of tables in the library */
 proc sql noprint;
@@ -70,11 +81,6 @@ select distinct memname into: table_list separated by ' '
 %end;
   ;
 /* check that we have something to check */
-proc sql
-%if &outobs>-1 %then %do;
-  outobs=&outobs
-%end;
-;
 %if %length(&table_list)=0 %then %put library &lib contains no tables!;
 /* loop through each table */
 %else %do table_num=1 %to %sysfunc(countw(&table_list,%str( )));
@@ -85,10 +91,10 @@ proc sql
   %end;
   %else %do;
     %let check_tm=%sysfunc(datetime());
-    /* build sql statement */
-    create table mpsearch.&table as select * from &lib..&table
-      where %unquote(&filter_text) and
-    (0
+    /* prep input */
+    data &outlib..&table;
+      set &lib..&table;
+      where %unquote(&filter_text) and ( 0
     /* loop through columns */
     %do colnum=1 %to %sysfunc(countw(&vars,%str( )));
       %let col=%scan(&vars,&colnum,%str( ));
@@ -102,15 +108,20 @@ proc sql
         or ("&col"n = &numval)
       %end;
     %end;
-    );
+      );
+    %if &outobs>-1 %then %do;
+      if _n_ > &outobs then stop;
+    %end;
+    run;
     %put Search query for &table took
       %sysevalf(%sysfunc(datetime())-&check_tm) seconds;
-    %if &sqlrc ne 0 %then %do;
-      %put %str(WAR)NING: SQLRC=&sqlrc when processing &table;
+    %if &syscc ne 0 %then %do;
+      %put %str(ERR)ROR: SYSCC=&syscc when processing &lib..&table;
       %return;
     %end;
-    %if %mf_nobs(mpsearch.&table)=0 %then %do;
-      drop table mpsearch.&table;
+    %if %mf_nobs(&outlib..&table)=0 %then %do;
+      proc sql;
+      drop table &outlib..&table;
     %end;
   %end;
 %end;

tests/crossplatform/mp_searchdata.test.sas

@@ -0,0 +1,29 @@
+/**
+  @file
+  @brief Testing mp_searchdata.sas
+
+  <h4> SAS Macros </h4>
+  @li mp_searchdata.sas
+  @li mp_assert.sas
+
+
+**/
+
+/** Test 1 - generic useage */
+
+%mp_searchdata(lib=sashelp, ds=class, string=a)
+%mp_assert(
+  iftrue=(&syscc=0),
+  desc=No errors in regular usage,
+  outds=work.test_results
+)
+
+/** Test 2 - with obs issue  */
+
+%mp_searchdata(lib=sashelp, ds=class, string=l,outobs=5)
+
+%mp_assert(
+  iftrue=("&SYSWARNINGTEXT" = ""),
+  desc=Ensuring WARN status is clean,
+  outds=work.test_results
+)