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* Protect library functions from IFS changes.P. J. McDermott2012-10-091-0/+9
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* Fix _ob_local().P. J. McDermott2012-10-041-1/+1
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* Add a function to validate shell variable names.P. J. McDermott2012-09-281-0/+10
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* Return rather than print value in _ob_return.P. J. McDermott2012-09-091-3/+1
| | | | | Don't use _ob_return in command substitutions. Doing so unsets stack variables only in a subshell environment.
* Make sure that _ob_return only unsets variables.P. J. McDermott2012-09-081-1/+1
| | | | | | | | According to POSIX.1-2008, some conformant shells might try to unset a function if: 1. Neither -f nor -v is specified and 2. A variable by a specified name does not exist.
* Implement _ob_local and _ob_return.P. J. McDermott2012-09-081-0/+42