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abstraction instead of directly using C standard I/O,
to eliminate most uses of C formatted I/O,
and fix numerous bugs, such variadic argument lists which
lack a terminating ``nao'' sentinel.
Bug 28033 is addressed by this patch, since streams no longer provide
printf-compatible formatting. The native formatter is extended with
some additional capabilities to take over.
The work on literal objects is expanded and they are now used
throughout the code base.
Fixed bad realloc in string output stream: reallocating by number
of wide chars rather than bytes.
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Bumped version numbers, and cleaned up trailing whitespace from some files.
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Fix unsigned and plan char * mixing.
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C structure contains obj_t * references, we should initialize
that C structure after allocating the cobj. If we initialize
the structure first, it may end up having the /only/ references
to the objects. In that case, the objects are invisible to the
garbage collector. The subsquent allocation of the cobj itself
then may invoke gc which will turn these objects into dust.
The result is a cobj which contains a handle structure that
contains references to free objects. The fix is to allocate
the handle structure, then the cobj which is associated with
that handle, and then initialize the handle, at which point it
is okay if the handle has the only references to some objects.
Care must be taken not to let a cobj escape with a partially
initialized handle structure, and not to trigger gc between
allocating the cobj, and initializing the fields.
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semantics on the input stream to wide character input.
Also, reading a query the command line (-c) must
read bytes from a UTF-8 encoding of the string.
We introduce a new get_byte function which can extract bytes
from streams which provide it.
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use wide character functions so that there is no illicit
mixing. (But the goal is to replace this usage with txr streams).
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Cleaned up some more issues related to extended characters.
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This is incomplete. There are too many dependencies on
wide character support from the C stream I/O library,
and implicit use of some encoding which may not be UTF-8.
The regex code does not handle wide characters properly.
Character type is still int in some places, rather than wchar_t.
Test suite passes though.
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is needed for pipes that terminate abnormally or return failed
termination. Pipe and stdio streams have an extra description field
so they are printed in a readable way.
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by the integer constant 0 rather than a proper null pointer constant.
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Regexps can be bound to variables.
New freeform directive.
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Lazy strings implemented, incompletely.
Changed string function to implicitly strdup; non-strdup
version changed to string_own. Fixed wrong uses of strdup
rather than chk_strdup.
Functions added to regex module to provide regex matching
as a state machine to which characters are fed.
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