How does the parser for infix notation detect a missing multiplication sign?

Question

I am writing a parser that parses mathematical expressions based on a syntax diagram very similar to this one .

I haven't found a way to handle the missing multiplication sign (like in 3(x+y)

). Where in the syntax diagram should I handle this?

0

HerpDerpington Jul 25 15 at 18:51

1 answer

melpomene · Accepted Answer · 2015-07-25T19:06:55+0000

You would make it *

optional in the definition term

.

ASCII Chart:

o-->-->--[factor]->-->--o
    /               \
    \               /
     ---<--[*]--<---
         \     /
          --<--