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* lib.c (split_str_sep): New function.
(split_str): Semantics changed; the second argument
is not a set of separator characters (like in split_str_sep)
but rather a separator string. Fixed bug: if the input
string is empty, the output list is empty. This caused
infinite looping behavior in @(freeform).
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Exponential memory consumption behavior was observed when
matching the input aaaaaa....
against the regex a?a?a?a?....aaaa....
The fix is to eliminate common subexpressions
from the derivative for the or operator.
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Conflicts:
ChangeLog
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in the middle of statement block.
* lib.h (TAG_MASK): Becomes type cnum rather than long.
(nao): Based off 1 rather than -1 to avoid left shift of
negative number.
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This turns out to be easy to do in NFA land.
The complement of an NFA has exactly the same number
and configuration of states and transitions, except
that the states have an inverted meaning; and furthermore,
failed character transitions are routed to an extra
state (which in this impelmentation is permanently
allocated and shared by all regexes). The regex &
is implemented trivially using DeMorgan's.
Also, bugfix: regular expressions like A|B|C are allowed
now by the syntax, rather than constituting syntax error.
Previously, this would have been entered as (A|B)|C.
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* hash.h (sethash): Declared.
* lib.c (cobj_handle): New function.
* lib.h (cobj_handle): Declared.
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no null pointer check over struct cobj_ops operations.
New typechecking function for COBJ objects.
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from now on, which is compatible with unsigned char *.
No implicit conversion to or from this type, in C or C++.
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in regex module not exposed in header. Etc.
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to vector data; they point to element 0 which is actually the third
element of the vector. If an object is only referenced by interior
pointers, Valgrind reports it as possibly leaked. This change
conditionally adds a pointer to the true start of the vector,
if Valgrind support is enabled.
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Allow compiler command to be set independently of full path
for easier compiler switching.
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can be taken advantage of for better diagnostics.
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have a _s suffix.
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can be converted to a type long and vice versa. The configure
script tries to detect the appropriate type to use. Also,
some run-time checking is performed in the streams module
to detect which conversions specifier strings to use for
printing numbers.
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a system package instead of being hacked with the $ prefix.
Keyword symbols are provided. In the matcher, evaluation
is tightened up. Keywords, nil and t are not bindeable, and
errors are thrown if attempts are made to bind them.
Destructuring in dest_bind is strict in the number of items.
String streams are exploited to print bindings to objects
that are not strings or characters. Numerous bugfixes.
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we wouldn't have to declare object variables at all, so why
use an obtuse syntax to do so?)
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The recent auto_str("byte str") error could have been caught
at compile time.
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compiler. Idea: allocator functions return char * instead of void *,
like malloc did in classic pre-ANSI C. That way we are forced to
use a cast except when the target pointer is char * already.
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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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pointer to a C static string, intended for literals. We can now
treat literal strings as light-weight objects.
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(c_chr): Return wchar_t not int.
* lib.h (chr, c_chr): Declarations updated.
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Fix unsigned and plan char * mixing.
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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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Now numbers and characters fit into a cell. We lose one more bit
from the range of numbers.
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unboxed. If the lowest bit of the obj_t * pointer is 1, then
the remaining bits are a number. A lot of assumptions are made:
- the long type can be converted to and from a pointer
- two's complement.
- behavior of << and >> operators when the sign bit is involved.
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due to use of boxed numbers for vector access.
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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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bottom is unreliable due to the unpredictable allocation order of local
variables.
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rather than separation.
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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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Note: Version 016 ChangeLog message incorrect.
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