Jilles Tjoelker
6262b84eee
sh: Import arithmetic expression code from dash. ...
New features:
* proper lazy evaluation of || and &&
* ?: ternary operator
* executable is considerably smaller (8K on i386) because lex and yacc are
no longer used
Differences from dash:
* arith_t instead of intmax_t
* imaxdiv() not used
* unset or null variables default to 0
* let/exp builtin (undocumented, will probably be removed later)
Obtained from: dash
2011-02-08 23:18:06 +00:00
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6262b84eee