Does Sumo Logic support spaces and dots in the folder names for local file sources and how do I specify the path expression in sources json file?

Yes, Sumo Logic supports white spaces and dots in folder names for filepath expression for local file sources.

Local File Source JSON example with spaces and dots in File pathExpression For Windows:

"pathExpression":"D:\\mylog.v2\\*.log",

"pathExpression":"C:\\Program Files\\Sumo.Logic.Collector\\logs\\*.log",

"pathExpression":"C:\\Program Files\\Sumo Logic Collector\\logs\\*.log",

Local File Source JSON example with spaces and dots in File pathExpression For Linux:

 "pathExpression":"/home/mylog.v2/*.log?",

 "pathExpression":"/my folder/log.1.2.3./messages/*.log",