Hi Erik, > It seems that symbols beginning with (or consisting only of) '+' are not > parsed as > a continuous (internal) symbol name. > > But everything works as expected with '*':
This is intended. The same happens with '-' BTW. The reason is that these two characters may also denote the sign of a number. The parser cannot decide their meaning, and keeps them always separate. The idea is that the caller decides, depending on language and context. For example, is "3-4" an arithmetic expression (3 "-" 2) or just two numbers (2 -3)? > Is there any way to get '++' to pass through as an internal symbol? Here too the application layer must decide. 'read' is just a simple tokenizer, not a full parser. The latter would require the specification of lots of rules, which are more easily handled if the application operates on the returned lexical tokens. ☺/ A!ex -- UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe
