Changes in this patch:
- invalid boolean expression on \if or \elif is treated as if the script
had a bad \command, so it either stops the script (ON_ERROR_STOP, script
mode), or just gives the ParseVariableBool error and continues.
- All interactive "barks" removed except for [...]
- remaining error messages are tersed: [...]
Patch applies, make check ok, psql tap test ok.
Yep. At least the code is significantly simpler.
There is a useless space on one end of line in the perl script.
Shouldn't there be some documentation changes to reflect the behavior on
errors? A precise paragraph about that would be welcome, IMHO.
In particular, I suggest that given the somehow more risky "ignore and
keep going whatever" behavior after a syntax error on if in a script,
there should be some advice that on_error_stop should better be activated
in scripts which use \if.
Given that there is no more barking, then having some prompt indication
that the code is inside a conditional branch becomes more important, so
ISTM that there should be some plan to add it.
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