update the following features to use the monotonic clock for calculating time
deltas and intervals:
* MAILCHECK parameter
* PERIOD parameter
* SECONDS parameter
* %(nS.t.f) prompt-expansion sequence
* time built-in's elapsed time and cpu % values
* zsh/zftp ZFTP_TMOUT parameter
* zsh/zprof timings
also use CLOCK_MONOTONIC_RAW instead of CLOCK_MONOTONIC on macOS
1) Document the behavior of "typeset -n existing_var" (via Jun T. comment)
2) Prohibit "typeset -nm pattern" because, well, it's insane. Add test.
3) Improve doc for ${(!)ref} including ${{t!)ref} (Jun T.)
4) Fix doc for how-to unset of a named ref (Jun T.)
5) Allow "typeset +r -n ref" and "typeset +r +n ref" (Jun T.)
6) Fix "typeset -r -n ref=param" to create readonly references
7) Avoid accidental removal of PM_UNSET flag (Jun T.) and update test
8) Fix "typeset -gn ref=value" and add a test for it
9) Add tests for read-only reference behavior
10) Fix infinite recursion when resolving scope of an unset local
named reference, add test.
The full pathname is obatined by a reliable method on macOS and systems
that support procfs. But on other systems (FreeBSD, OpenBSD, ...) it is
guessed from argv[0], PWD and PATH.
Changes typeset such that ${newparam-notset} yields "notset" and
"typeset -p newparam" does not show an assignment to the parameter. This
is similar to the default behavior of bash and ksh, with minor differences
in typeset output.
Also add tests for some POSIX incompatibilities plus minor changes for test
harness robustness.
The difference was mostly harmless in the common case "(see manref(foo)(42))",
which expanded to "(see man page foo(42))" under ztexi.yo, but in other
contexts the ztexi.yo expansion was was nonsensical; for example:
"the BSD manref(echo)(1) command"
"the string returned by the manref(getlogin)(3) system call"
"advisory file locking (via the manref(fcntl)(2) system call)"
"this is the exact opposite from manref(ls)(1),"
While there, copyedit some uses of manref()().
Move detection of key/value pairs down into prefork().
Detect normal array assignment and [key]=val array assignemnt
separately. Mark key / value pairs with Marker and pass up flag. Deal
with marked triads specially later on.
Works for both normal and typeset case, also var+=...
Still to do: allow to be mixed with straight array assignment,
improve typeset -p, implement [key]+=value.
