There are two underlying ideas here: (1) Keeping signals queued around
anything that's doing memory management (including push/pop of the heap)
has become crucial. (2) Anytime the shell is going to run a command, be
it buitin or external, it must be both safe and necessary to process any
queued signals, so that the apparent order of signal arrival and command
execution is preserved.
Typeset assignments now work like raw assignments except
for no "+=" and no GLOB_ASSIGN.
Documented in typeset builtin doc and mentioned in release notes.
Tests to ensure basic sanity.
Enabled by default, can be turned off by "disable -r" with typeset
family of commands.
"|" is now found properly by looking for words that come
from the lexical analyser, rather than hacking a pattern
returned in one dollop.
Update some completion functions that need extra quoting
as a result.
Add test for new parsing.
Update version number to 5.0.8-dev-3 because of wordcode
incompatibility.
Handled generally, though only showing up in special nested
cases.
Also fix ZLE so it doesn't cancel the interrupt flag when
not actually returning from a local keymap.
Variables are now associated with the module that declares them, being
initialised and saved/restored there. However, as many variables are
used for communication between modules, many of them are set in multiple
places, so the assignment is ambiguous.
Combination of 12 commits from interrupt_abort branch.
Basic strategy is to introduce bits to errflag and to set and
reset them separately.
Remove interrupt status on return to main keymap.
Turn off ERRFLAG_INT for always block.
Restore bit thereafter: we probably need a new variable in order
to allow user interrupts to be reset in the always block.
Add TRY_BLOCK_INTERRUPT
This works the same as TRY_BLOCK_ERROR, but for a SIGINT, too.
Ensure propagation of SIGINT from exited job.
If received by foreground job, shell uses ERRFLAG_INT, not
ERRFLAG_ERROR, to set the new state.
Reset errflag before precmd()
Add always block in _main_completion to fix ZLS_COLORS
Ensures we get the right state of $ZLS_COLORS at the end of _main_complete
even if there's an interrupt. However, the "right state" is a bit messy
as it depends on styles.
Longstanding problem caused simple anonymous function incorrectly to
reset the overall "complext" state, causing wordcode to be diverted
into execsimple(), which caused a crash 'cos ist wasn't simple.
Also restore ksh [ -t ] compatibility when POSIX_BUILTINS is not set, and
allow operators defined by modules to be called with no arguments, although
this affects only runtime interpretation, not parsing.
Gets rid of all the remaining "ignoring return value" compiler
warnings, and makes some read/write operations safer by ensuring
that an EINTR is handled.
