SAS:识别文件夹下指定文件类型及名称

/*STEP1:获取指定文件夹的指定类型的所有文件*/
%MACRO FIND_SAS(DIRNAME,TYPE);/*参数有两个：路径，文件类型后缀*/
LIBNAME SASJOB "&SASJOB_PATH";
%PUT %STR(----------->DIRNAME=&DIRNAME);
%PUT %STR(----------->TYPE=&TYPE);
DATA SASJOB.DIRFILES;
RC=FILENAME("DIR","&DIRNAME");/*把&DIRNAME值传给文件引用符“DIR"*/
OPENFILE=DOPEN("DIR");/*得到路径标示符OPENFILE，DOPEN是打开directory的sas内置函数*/
IF OPENFILE>0 THEN DO;/*如果OPENFILE>0表示正确打开路径*/
NUMMEM=DNUM(OPENFILE);/*得到路径标示符OPENFILE中member的个数nummem*/
DO II=1 TO NUMMEM;
NAME=DREAD(OPENFILE,II);/*用DREAD依次读取每个文件的名字到NAME*/

FILEPATH="&DIRNAME"||NAME;
fnum=COMPRESS(NAME,".xml","");
fnum=COMPRESS(fnum,"user_case","");

OUTPUT;/*依次输出*/
END;
END;
KEEP NAME filepath fnum;/*只保留filepath、fnum列*/
RUN;

PROC SORT DATA=SASJOB.DIRFILES;/*按照NAME排序*/
BY DESCENDING NAME;
%IF &TYPE^=ALL %THEN %DO;/*是否过滤特定的文件类型&TYPE*/
WHERE INDEX(UPCASE(NAME),UPCASE(".&TYPE"));/*Y,则通过检索NAME是否包含&TYPE*/
%END;
RUN;

PROC PRINT DATA=SASJOB.DIRFILES;
RUN;

%MEND FIND_SAS;

%MACRO DIR(SASJOB_PATH,TYPE,DATASET_NUM);
LIBNAME SASJOB "&SASJOB_PATH";
%LET SASJOB_PATH=&SASJOB_PATH.;
%FIND_SAS(&SASJOB_PATH,&TYPE);

DATA TEMP(KEEP=NAME_SAS NAME_LOG);
SET SASJOB.DIRFILES;
NAME_SAS=COMPRESS(NAME);
NAME_LOG=COMPRESS(TRANWRD(NAME,'.sas','.log'),);
IF NAME_SAS ^='dirfiles.sas7bdat' AND NAME_SAS ^='dirfiles.sas7bdat.lck';
RUN;
PROC SORT DATA=TEMP OUT=SASJOB.DIRFILES;
BY NAME_SAS;
RUN;

%MEND DIR;
%DIR(./02@Compute_03_1_8,sas,0);