SAS treats the characters '\' & '/' as delimiters for macro variables as well and it resolves correctly without the period.
%let path_folder = C:\_localdata\;
libname test "&path_folder\temp";
The log will show both work the same:
129 %let path_folder = C:\_localdata\;
130
131 libname test "&path_folder/temp";
NOTE: Libref TEST was successfully assigned as follows:
Engine: V9
Physical Name: C:\_localdata\\temp
132 %let path_folder = C:\_localdata\;
133
134 libname test "&path_folder\temp";
NOTE: Libref TEST was successfully assigned as follows:
Engine: V9
Physical Name: C:\_localdata\\temp
135 libname test "&path_folder.\temp";
NOTE: Libref TEST was successfully assigned as follows:
Engine: V9
Physical Name: C:\_localdata\\temp
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