Have proper Lexer/Parser

ghantoos / lshell

lshell is a shell coded in Python, that lets you restrict a user's environment to limited sets of commands, choose to enable/disable any command over SSH (e.g. SCP, SFTP, rsync, etc.), log user's commands, implement timing restriction, and more.

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Have proper Lexer/Parser #87

Open xlr-8 opened 9 years ago

xlr-8 commented 9 years ago

Hi,

Regarding issues https://github.com/ghantoos/lshell/issues/67 & https://github.com/ghantoos/lshell/issues/86 I thought it could be good to integrate a more linux-like lexer/parser (with BNF and stuff), to avoid those small & painful issues.

Some relevant links - reading before bed: http://pubs.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html http://www.teicm.gr/icd/staff/nikolaid/learning_the_bash_shell.pdf [page 327 and more]

Keep up the good work!