- ansification
- format of output of jobs command (etc)
- job identiers %+, %- etc
- $? and $(...)
- correct quoting of output of set, export -p and readonly -p
- differentiation between nornal and 'posix special' builtins
- correct behaviour (posix) for errors on builtins and special builtins
- builtin printf and kill
- set -o debug (if compiled with DEBUG)
- cd src obj (as ksh - too useful to do without)
- unset -e name, remove non-readonly variable from export list.
(so I could unset -e PS1 before running the test shell...)
It was using getlong(), which caused values larger than LONG_MAX to be
truncated to LONG_MAX.
As recommended by 1003.2, print warning messages when argument cannot be
converted to value or is out of range.
Use macro constants for "skip1" and "skip2" instead of assigning them
each loop iteration.
Reformat the multi-case entries in the "big switch" so the lines don't wrap.
* Escape characters in the string needed to be processed as they were
encountered, otherwise a "\000" octal constant would prematurely
terminate the formatting string.
* Implemented the %b, SysV echo(1) compatibility, formatting directive.
