psql: Add quit/help behavior/hint, for other tool portability
Issuing 'quit'/'exit' in an empty psql buffer exits psql. Issuing
'quit'/'exit' in a non-empty psql buffer alone on a line with no prefix
whitespace issues a hint on how to exit.
Also add similar 'help' hints for 'help' in a non-empty psql buffer.
Reported-by: Everaldo Canuto
Discussion: https://postgr.es/m/flat/CALVFHFb-C_5_94hueWg6Dd0zu7TfbpT7hzsh9Zf0DEDOSaAnfA%40mail.gmail.com
Author: original author Robert Haas, modified by me
Branch
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master
Details
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https://git.postgresql.org/pg/commitdiff/df9f599bc6f14307252ac75ea1dc997310da5ba6
Modified Files
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src/bin/psql/mainloop.c | 113 ++++++++++++++++++++++++++++++++++++++++++------
1 file changed, 100 insertions(+), 13 deletions(-)
