/home/dan/M2/1.3.1/Macaulay2/packages/Parsing.m2:56:44-56:66: --source code: terminalParser = val -> new Parser from (c -> if c === null then val) | symbol class value location of symbol | ------ ----- ----- ------------------ | val : Symbol -- nil /home/dan/M2/1.3.1/Macaulay2/packages/Parsing.m2:56:18-56:20