Johnothan King 102868f850 Replace the hash alias with a proper builtin ... This commit replaces the old hash alias with a proper builtin. I based this builtin off of the code alias uses for handling `alias -t --`, but with the hack for `--` removed as it has no use in the new builtin. `alias -t --` will no longer work, that hack is now gone. While I was testing this builtin, I found a bug with hash tables in non-forking subshells. If the hash table of a non-forking subshell is changed, the parent shell's hash table is also changed. As an example, running `(hash -r)` was resetting the parent shell's hash table. The workaround is to force the subshell to fork if the hash table will be changed. src/cmd/ksh93/bltins/typeset.c: - Move the code for hash out of the alias builtin into a dedicated hash builtin. `alias -t --` is no longer supported. src/cmd/ksh93/data/aliases.c: - Remove the old alias for hash from the table of predefined aliases. src/cmd/ksh93/data/builtins.c: - Fix the broken entry for the hash builtin and add a man page for the new builtin. src/cmd/ksh93/sh.1: - Replace the entry for the hash alias with a more detailed entry for the hash builtin. src/cmd/ksh93/sh/name.c: - Force non-forking subshells to fork if the PATH is being reset to workaround a bug with the hash tree. src/cmd/ksh93/tests/alias.sh: - Add a regression test for resetting a hash table, then adding a utility to the refreshed hash table. src/cmd/ksh93/tests/subshell.sh: - Add regression tests for changing the hash table in subshells. (cherry picked from commit d8428a833afe9270b61745ba3d6df355fe1d5499)		2020-06-12 01:45:18 +02:00
..
argnod.h	Version: 2012-08-01-master	2016-01-11 15:54:23 -05:00
builtins.h	Replace the hash alias with a proper builtin	2020-06-12 01:45:18 +02:00
defs.h	Fix 'test'/'[' exit status >1 on error in arithmetic expression	2020-06-12 01:45:15 +02:00
edit.h	Fix 80 typos in comments	2020-06-12 01:45:12 +02:00
env.h	Fix 80 typos in comments	2020-06-12 01:45:12 +02:00
fault.h	Fix 80 typos in comments	2020-06-12 01:45:12 +02:00
fcin.h	Version: 2012-08-01-master	2016-01-11 15:54:23 -05:00
history.h	Version: 2012-08-01-master	2016-01-11 15:54:23 -05:00
io.h	rm "I/O error" error msg; just keep >0 exit status (re: 9011fa93)	2020-06-12 01:45:18 +02:00
jobs.h	Fix 80 typos in comments	2020-06-12 01:45:12 +02:00
lexstates.h	Fix 80 typos in comments	2020-06-12 01:45:12 +02:00
name.h	Fix 80 typos in comments	2020-06-12 01:45:12 +02:00
national.h	Version: 2012-08-01-master	2016-01-11 15:54:23 -05:00
nval.h	Version: 2012-08-01-master	2016-01-11 15:54:23 -05:00
path.h	Version: 2012-08-01-master	2016-01-11 15:54:23 -05:00
regress.h	Version: 2012-08-01-master	2016-01-11 15:54:23 -05:00
shell.h	Fix 80 typos in comments	2020-06-12 01:45:12 +02:00
shlex.h	Version: 2012-08-01-master	2016-01-11 15:54:23 -05:00
shnodes.h	Version: 2012-08-01-master	2016-01-11 15:54:23 -05:00
shtable.h	Version: 2012-08-01-master	2016-01-11 15:54:23 -05:00
streval.h	Version: 2012-08-01-master	2016-01-11 15:54:23 -05:00
terminal.h	Fix 80 typos in comments	2020-06-12 01:45:12 +02:00
test.h	Version: 2012-08-01-master	2016-01-11 15:54:23 -05:00
timeout.h	Version: 2012-08-01-master	2016-01-11 15:54:23 -05:00
ulimit.h	Version: 2012-08-01-master	2016-01-11 15:54:23 -05:00
variables.h	Remove code related to long-dead 3DFS research project	2020-06-12 01:45:17 +02:00
version.h	POSIX compliance fix: apply 'set -u' to $1, $2, ...	2020-06-12 01:45:17 +02:00