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* NEWS: Update.
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Andy Wingo 2012-01-12 00:32:11 +01:00
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NEWS
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@ -7,9 +7,9 @@ Please send Guile bug reports to bug-guile@gnu.org.
Changes in 2.0.4 (since 2.0.3):
* Features
* Notable changes
** Better debuggability for interpreted procedures
** Better debuggability for interpreted procedures.
Guile 2.0 came with a great debugging experience for compiled
procedures, but the story for interpreted procedures was terrible. Now,
@ -74,368 +74,81 @@ Thanks to Mark Weaver for inspiration.
** SRFI-39 parameters are available by default.
Guile now includes support for "parameters", as defined by SRFI-39, in
the default environment. See
* module/ice-9/boot-9.scm (<parameter>, make-parameter, parameter?)
(parameter-fluid, parameter-converter, parameterize): New top-level
bindings, implementing SRFI-39 parameters. Currently,
current-input-port and similar procedures are not yet parameters.
Guile now includes support for parameters, as defined by SRFI-39, in the
default environment. See "Parameters" in the manual, for more
information. `current-input-port', `current-output-port', and
`current-error-port' are now parameters.
** add current-warning-port
** Add `current-warning-port'
* libguile/ports.h:
* libguile/ports.c (scm_current_warning_port)
(scm_set_current_warning_port): New functions, wrapping the Scheme
parameter.
* module/ice-9/boot-9.scm (current-warning-port): New parameter,
defining a port for warnings.
Guile now outputs warnings on a separate port, `current-warning-port',
initialized to the value that `current-error-port' has on startup.
warnings written to warning port
* libguile/deprecation.c (scm_c_issue_deprecation_warning):
* libguile/load.c (auto_compile_catch_handler):
(scm_sys_warn_auto_compilation_enabled, scm_primitive_load_path):
* module/ice-9/boot-9.scm (warn, %load-announce, duplicate-handlers)
(load-in-vicinity):
* module/system/base/message.scm (warning): Write to the warning port.
(*current-warning-port*): Alias the warning port.
** Syntax parameters.
Following Racket's lead, Guile now supports syntax parameters. See
"Syntax parameters" in the manual, for more.
** add define-syntax-parameter, same as define-syntax
Also see Barzilay, Culpepper, and Flatt's 2011 SFP workshop paper,
"Keeping it Clean with syntax-parameterize".
* module/ice-9/psyntax.scm (define-syntax-parameter): New toplevel form.
Will be used to implement syntax parameters, following Barzilay,
Culpepper, and Flatt's 2011 SFP workshop paper, "Keeping it Clean with
syntax-parameterize". Adds a new binding type and definition form.
** deprecate fluid-let-syntax in favor of syntax-parameterize
`primitive-load' returns the values yielded from evaluating the last
expression in the file. This in turn makes `load' always return the
results of the last expression, both when interpreted and compiled.
* module/ice-9/psyntax.scm (syntax-parameterize): Rename from
fluid-let-syntax.
** Parse command-line arguments from the locale encoding.
Author: Ian Price <ianprice90@googlemail.com>
Date: Sat Jan 7 01:59:33 2012 +0000
Guile now attempts to parse command-line arguments using the user's
locale. However for backwards compatibility with other 2.0.x releases,
it does so without actually calling `setlocale'. Please report any bugs
in this facility to bug-guile@gnu.org.
document syntax parameters
* doc/ref/api-macros.texi (Macros): Add subsection for "Syntax Parameters"
* New interfaces
** (ice-9 session): `apropos-hook'
** New print option: `escape-newlines', defaults to #t.
** (ice-9 ftw): `file-system-fold', `file-system-tree', `scandir'
** primitive-load returns the value(s) of the last expression
* libguile/load.c (scm_primitive_load): Return the values yielded from
evaluating the last expression in the file.
* Bug fixes
** Fix R6RS `fold-left' so the accumulator is the first argument.
** fix <dynwind> serialization.
** Fix bugs in the new optimizer.
The new `peval' optimizer had three bugs: one related to dynamic-wind,
one regarding propagation of expressions that yield multiple values, and
one that would mistakenly turn (cons 'foo #nil) into (list 'foo). These
were fixed.
** when leaving a non-tail let, allow bound vals to be collected
* module/language/tree-il/compile-glil.scm (flatten-lambda-case): Clear
lexical stack slots at the end of a non-tail let, letrec, or fix.
Fixes http://debbugs.gnu.org/9900.
** fix bit-set*! bug (!)
* libguile/bitvectors.c (scm_bit_set_star_x): Fix a long-standing (since
2005) bug in which instead of using the kv bitvector, we actually use
the `v' bitvector. Also, change to allow `kv' being shorter than
`v'.
** fix bug in make-repl when lang is actually a language
* module/system/repl/common.scm (make-repl): Fix to accept language
objects in addition to symbols. Fixes http://debbugs.gnu.org/9857.
Thanks to Tristan Colgate for the report.
** hack the port-column of current-output-port after printing a prompt
* module/ice-9/boot-9.scm (repl-reader): Reset the output-column to 0
after printing the prompt. Fixes bug 9664.
** Fix bugs in the new `peval' optimizer.
** Allow values bound in non-tail let expressions to be collected.
** Fix bit-set*! bug from 2005.
** Fix bug in `make-repl' when `lang' is actually a language.
** Hack the port-column of current-output-port after printing a prompt.
** FFI: Hold a weak reference to the CIF made by `procedure->pointer'.
* libguile/foreign.c (scm_procedure_to_pointer): Keep a weak reference
to CIF so that it is not reclaimed before POINTER. Before that it
could be reclaimed and typically reused to store the CIF of another
procedure with the same arity, leading to obscure wrong-type-arg
errors.
** Allow overlapping regions to be passed to `bytevector-copy!'.
Reported by Dmitry Chestnykh <dmitry@codingrobots.com>.
Fixes <http://debbugs.gnu.org/10070>.
** Fix `validate-target' in (system base target).
* module/system/base/target.scm (validate-target): Accept any tuple with
at least 3 parts.
** fix validators for various list-style headers
commit 69b8c5df14dbc1f9602925788507d371a529dfbe
Author: Daniel Hartwig <mandyke@gmail.com>
Date: Wed Nov 23 20:56:10 2011 +0100
* module/web/http.scm (default-val-validator): Valid with no value.
(key-value-list?): Keys are always symbols, do not accept strings.
(validate-param-list): Apply `valid?' to list elements.
(validate-credentials): Validate param for Basic scheme, which
is parsed as a string.
(declare-symbol-list-header!): `list-of?' args were in wrong order.
("Cache-Control"): Replace `default-val-validator' with more
specific procedure.
("Accept"): Validate on first param which has no value.
** FFI: Hold a weak reference to the procedure passed to `procedure->pointer'.
* libguile/foreign.c (scm_procedure_to_pointer): Keep a weak reference
to PROC.
* test-suite/tests/foreign.test ("procedure->pointer")["procedure is
retained"]: New test.
** ,language at REPL sets current-language
* module/system/repl/command.scm (language): Set the
*current-language*.
* module/system/repl/repl.scm (start-repl): Create a new dynamic scope
for *current-language*.
** new print option escape-newlines, defaults to #t
* libguile/private-options.h (SCM_PRINT_ESCAPE_NEWLINES_P):
* libguile/print.c: Add new escape-newlines print option, defaulting to
on.
(write_character): For newlines, if SCM_PRINT_ESCAPE_NEWLINES_P, then
print them as \n.
(scm_init_print): Refactor print options initialization.
** allow URIs of the form file:///etc/hosts
* module/web/uri.scm (parse-authority): Allow empty authorities, so that
we accept URIs of the form, file:///etc/hosts.
** peval: Truncate multiple values when extending the environment.
Reported by Cédric Cellier <rixed@happyleptic.org>.
** Add an exception printer for `getaddrinfo-error'.
* module/ice-9/boot-9.scm (getaddrinfo-error-printer): New procedure.
Use it as the `getaddrinfo-error' exception printer.
** current-input-port et al are srfi-39 parameters
** add an apropos-hook to ice-9 session
* module/ice-9/session.scm: #:keyword-ify the define-module form, and
export apropos-hook.
(apropos-hook): New hook.
(apropos, apropos-fold): Run the apropos-hook.
** Add `file-system-fold' and `file-system-tree' to (ice-9 ftw).
* doc/ref/misc-modules.texi (File Tree Walk): Document
`file-system-tree' and `file-system-fold'.
** Arrange to convert command-line arguments from the right encoding.
This is a temporary workaround for the 2.0 stable series. The next
stable series should have an implicit `setlocale (LC_ALL, "")' call,
which will make this unnecessary.
* libguile/feature.c (progargs_fluid): Rename to...
(scm_program_arguments_fluid): ... this. Update users.
* libguile/feature.h (scm_program_arguments_fluid): New internal
declaration.
* libguile/init.c (invoke_main_func): Call
`scm_i_set_boot_program_arguments' instead of
`scm_set_program_arguments'.
* libguile/script.c (locale_arguments_to_string_list,
scm_i_set_boot_program_arguments): New functions.
(scm_compile_shell_switches): Use `locale_arguments_to_string_list'.
* libguile/script.h (scm_i_set_boot_program_arguments): New internal
declaration.
* test-suite/standalone/Makefile.am (check_SCRIPTS, TESTS): Add
`test-command-line-encoding'.
* test-suite/standalone/test-command-line-encoding: New file.
** ftw: Add `scandir'.
Suggested by Nala Ginrut <nalaginrut@gmail.com>.
* module/ice-9/ftw.scm (scandir): New procedure.
* test-suite/tests/ftw.test ("scandir"): New test prefix.
* doc/ref/misc-modules.texi (File Tree Walk): Document `scandir'.
** FFI: Properly unpack small integer return values in closure call.
Fixes <http://debbugs.gnu.org/10203>.
commit a6ea740b3ca1174cc4414ef9b03659fe259d0fe6
Author: Andreas Schwab <schwab@linux-m68k.org>
Date: Sat Dec 3 12:17:46 2011 +0100
* libguile/foreign.c (unpack): Add parameter return_value_p.
Properly store integer return values smaller than int.
(scm_i_foreign_call): Update call to unpack.
(invoke_closure): Likewise.
libguile/foreign.c | 40 +++++++++++++++++++++++++++++++---------
1 files changed, 31 insertions(+), 9 deletions(-)
** Add a deprecated alias for $expt
commit 3cc21d7995313782f6def1789ca0150e95c8363f
Author: Christian Persch <chpe@gnome.org>
Date: Thu Nov 24 23:10:21 2011 +0100
* module/ice-9/deprecated.scm: Add alias for $expt. $expt was removed
in commit 6fc4d0124d633d1b3ddc5af82967f23bd17556f8 but no deprecated
alias was added in ad79736c68a803a59814fbfc0cb4b092c2b4cddf like for
all the other deprecated $sin, $cos, ... functions.
module/ice-9/deprecated.scm | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
** document invalidity of (begin) as expression; add back-compat shim
* doc/ref/api-control.texi (begin): Update to distinguish between
splicing begin and sequencing begin.
* module/ice-9/psyntax.scm (expand-expr): Add a back-compatibility shim
for `(begin)'.
** peval fix: (cons 1 #nil) is not (list 1)
** Extend handling of "Cache-Control" header.
Author: Daniel Hartwig <mandyke@gmail.com>
* module/web/http.scm ("Cache-Control"): Value for `max-stale' is
optional. Strict validation for value-less directives (`no-store',
etc.). String values optional for "cache-extension" directives.
* test-suite/tests/web-http.test: Value for `max-stale' is optional.
** Allow overlapping regions to be passed to `bytevector-copy!'.
** Fix `validate-target' in (system base target).
** `,language' at REPL sets the current-language fluid.
** `primitive-load' returns the value(s) of the last expression.
** Add an exception printer for `getaddrinfo-error'.
** Add a deprecated alias for $expt.
** Document invalidity of (begin) as expression; add back-compat shim.
** Web: Allow URIs with empty authorities, like "file:///etc/hosts".
** HTTP: Fix validators for various list-style headers.
** HTTP: Extend handling of "Cache-Control" header.
** HTTP: Fix qstring writing of cache-extension values
* module/web/http.scm ("Cache-Control"): Write string values using the
default val writer, to get quoting correct.
** freebsd build fixes (incomplete)
** fix generalized-vector-{ref,set!} for slices
* libguile/generalized-vectors.c (scm_c_generalized_vector_ref):
(scm_c_generalized_vector_set_x): Fix for the case in which base was
not 1, lbnd was not 0, or inc was not 1.
* test-suite/tests/arrays.test (array): Add a test. Thanks to Daniel
Llorens for the report.
** HTTP: `write-request-line' writes absolute paths, not absolute URIs.
** HTTP: Permit non-date values for Expires header.
** FreeBSD build fixes.
** Fix generalized-vector-{ref,set!} for slices.
** Fix erroneous check in `set-procedure-properties!'.
* libguile/procprop.c
(scm_set_procedure_properties_x)[SCM_ENABLE_DEPRECATED == 1]: Pass arguments
to `scm_assq' in the right order, and check its return value with
`scm_is_true'. Reported by Mike Gran <spk121@yahoo.com>.
** `write-request-line' writes absolute paths, not absolute URIs.
commit ab66fb3cd1d6e4343741ccb406e17eb3314eba84
Author: Ian Price <ianprice90@googlemail.com>
Date: Thu Sep 29 03:12:00 2011 +0100
* module/web/http.scm (write-request-line): RFC 2616 says that absolute
paths are used to identify resources on an origin server.
** don't leak file descriptors when mmaping objcode
* libguile/objcodes.c (make_objcode_from_file): Close the mmap'd file,
so that we don't leak the descriptor. I was previously under the
mistaken impression that closing the fd unmapped the memory, which is
not the case. Thanks to Cedric Cellier for the tip!
** Fix bugs related to mutation, the null string, and shared substrings
* libguile/strings.c (scm_i_is_narrow_string, scm_i_try_narrow_string,
scm_i_string_set_x): Check to see if the provided string is a
mutation-sharing substring, and do the right thing in that case.
Previously, if such a string was passed to these functions, they would
behave very badly: while trying to fetch and/or mutate the cell
containing the stringbuf, they were actually fetching or mutating the
cell containing the original shared string. That's because
mutation-sharing substrings store the original string in CELL_1,
whereas all other strings store the stringbuf there.
** deprecate SCM_ASRTGO
** allow scm_display_error to use a stack as the first argument
* libguile/backtrace.c (scm_display_error): Allow a deprecated use of
this function to pass a stack as the first argument. Thanks to Peter
Brett for pointing it out, in
http://lists.gnu.org/archive/html/guile-user/2011-06/msg00000.html.
** i18n: Fix gc_malloc/free mismatch on non-GNU systems.
* libguile/i18n.c (scm_i_locale_free): Remove.
(smob_locale_free): Define only when USE_GNU_LOCALE_API.
(scm_make_locale)[!USE_GNU_LOCALE_API]: Allocate
`c_locale->locale_name' with `scm_gc_strdup', not `malloc'.
** Make sure `regexp-quote' tests use Unicode-capable string ports.
* test-suite/tests/regexp.test (with-unicode): New macro.
("regexp-quote"): Wrap all `regexp-quote' calls in it. This fixes
tests on machines where the default port encoding is US-ASCII.
** Have `cpu-word-size' error out on unknown CPUs; add support for MIPSEL.
** permit non-date values for Expires header
* module/web/http.scm ("Expires"): Permit (some) non-date values.
** Remove null string optimization from scm_from_stringn
* libguile/strings.c (scm_from_stringn): Always return a freshly
allocated string from scm_from_stringn, even when asked to construct
the null string, in accordance with the R5RS. Previously, we
optimized the null string case by returning a reference to a global
null string object (scm_nullstr).
** Empty substrings no longer reference the original stringbuf
* libguile/strings.c (scm_i_substring, scm_i_substring_read_only,
scm_i_substring_shared): When asked to create an empty substring,
return a freshly allocated null string. Previously, an empty
substring needlessly held a reference to the original stringbuf.
** scm_i_substring_copy tries to narrow the substring
* libguile/strings.c (scm_i_substring_copy): Try to narrow the substring
if it came from a wide string.
** Avoid calling `u32_conv_from_encoding' on the null string
* libguile/strings.c (scm_from_stringn): Avoid calling
`u32_conv_from_encoding' on the null string, by using the same
fast-path code used if (encoding == NULL). This is an optimization,
and also avoids any possible encoding errors.
** Don't leak file descriptors when mmaping objcode.
** Fix bugs related to mutation, the null string, and shared substrings.
** Deprecate SCM_ASRTGO.
** Add deprecated shim for `scm_display_error' with stack as first argument.
** i18n: Fix gc_malloc/free mismatch on non-GNU systems.
** Make sure `regexp-quote' tests use Unicode-capable string ports.
** Have `cpu-word-size' error out on unknown CPUs; add support for MIPSEL.
** `scm_from_stringn' always returns unique strings.
** Empty substrings no longer reference the original stringbuf.
** `scm_i_substring_copy' tries to narrow the substring.
** Avoid calling `u32_conv_from_encoding' on the null string.
Changes in 2.0.3 (since 2.0.2):