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mtardy 84923c14c6 Merge pull request #2 from mtardy/symbol-table Symbol table		4 lat temu
.gitignore	Update draft for interning same symbol	4 lat temu
Makefile	Use -o option instead of output redirection	5 lat temu
README.md	Add readme	5 lat temu
calc.leg	Add draft ideas to calc.leg and clarify intern()	4 lat temu
draft.c	Add draft ideas to calc.leg and clarify intern()	4 lat temu
test.sh	Add arbitrary var identifiers	5 lat temu

Basic calculator

Requirements

Please install peg/leg manually or with Homebrew:

$ brew install peg

$ make

$ echo "2+3" | ./calc

$ ./test.sh