Looking at the SRFI-19 specification, the argument is called `day', not
`date'. Even the accessor is called `date-day'. So adjust the
documentation to match.
Also adjust the (web http) module, which was using `date' as well.
* doc/ref/srfi-modules.texi (SRFI-19 Date): Use `day' instead of `date'.
* module/web/http.scm (parse-rfc-822-date, parse-rfc-850-date)
(parse-asctime-date): Same.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
This is an import of the 'Abstract', 'Rationale', and 'Specification'
sections from the upstream specification text, with some manual
adjustment.
* doc/ref/srfi-modules.texi (SRFI 64): New subsection.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
* test-suite/tests/peg.test (comment-grammar): Z can be anything.
("simple comment with forbidden char"): Remove.
(html-grammar, html-example): New variables.
("parsing with complex grammars"): New test.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
* module/ice-9/peg/string-peg.scm (peg-as-peg): Augment with rules for
hexadecimal digits, “\uXXX” for characters, “\t” for tabs, etc.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
When the length is zero, the previous code would include the byte after
the end of the string in the hash. Fix that (the wide and narrow
hashers also guard against it via "case 0"), and don't bother mutating
length for the trailing bytes.
Since we already compute the char length, use that to detect all ASCII
strings and follow the same narrow string path that we do for latin-1.
libguile/hash.c (scm_i_utf8_string_hash): avoid overrun when len == 0.
Modern PEG supports inversed class like `[^a-z]` that would get any
character not in the `a-z` range. This commit adds support for that and
also for a new `not-in-range` PEG pattern for scheme.
* module/ice-9/peg/codegen.scm (cg-not-in-range): New function.
* module/ice-9/peg/string-peg.scm: Add support for `[^...]`
* test-suite/tests/peg.test: Test it.
* doc/ref/api-peg.texi: Document accordingly.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
This commit adds support for PEG as described in:
<https://bford.info/pub/lang/peg.pdf>
It adds support for the missing features (comments, underscores in
identifiers and escaping) while keeping the extensions (dashes in
identifiers, < and <--).
The naming system tries to be as close as possible to the one proposed
in the paper.
* module/ice-9/peg/string-peg.scm: Rewrite PEG parser.
* test-suite/tests/peg.test: Fix import
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
Previously they were unaligned, unlike their parent strings, and so
could end up with the wrong pointer tag. Observed on i686-linux-gnu,
where they ended up tagged as immediates (SCM_IMP()), causing failures
in TYP7 related checks.
* libguile/strings.h (SCM_IMMUTABLE_STRINGBUF): align resulting buffer
via SCM_ALIGNED(8).
* doc/ref/goops.texi: Insert reference to the "definition" of
next-method the first time next-method is mentioned. Place the
definition of next-method in index. Don't use capital methods in generic
function names (corrected only in one node). In section about
next-method, say that you can provide custom arguments (which we can now
due to the optimizing compiler). New node "Inheritance and accessors"
explaining how new accessor methods are created for subclasses.
This module replaces the method and define-method bindings with their
method* and define-method* counterparts, for use by users who prefer not
to use both kinds of syntactic forms.
* module/oop/goops/keyword-formals.scm: New module.
* am/bootstrap.am: Added
* doc/ref/goops.texi: Document this change.
* module/oop/goops.scm (compute-keyword-formal-ids): Renamed from
->keyword-formal-ids; modified to do work both on the list of formals
and the list of formal ids in the next-method call.
(compute-make-procedure): Use compute-keyword-formal-ids.
* module/oop/goops (compute-procedure, compute-make-procedure): Emit
lambda or lambda* as appropriate. This doesn't matter now since all
will boil down to lambda-case, but to be future-proof...
Also add some clarifying comments.
* module/oop/goops.scm (method-keyword-formals?): Remov method slot
keyword-formals? as well as exported procedure method-keyword-formals?
introduced in 765f1d49 by partially reverting that commit.
* module/oop/goops.scm: Export method* and define-method*.
(define-method): Extract definitions of helper procedures and place
them in an eval-when at top level.
(define-method*): Renamed from last commits define-method and modified
to invoke method*.
(define-method): New syntax.
(parse-keyword-formals): Renamed from parse-formals and modified to
give keyword methods a specialzers list with tail <top>.
(parse-formals): Re-introduce the code of previous parse-args.
(%compute-applicable-methods): Revert change of previous
commit. Giving keyword methods a specializer tail <top> naturally
makes original %compute-applicable-methods work also with keyword
methods (which kind of shows that we have made the correct choices).
(method*): Renamed from last commit's "method".
(method): New syntax.
* module/oop/goops.scm (keyword-formals?): New slot in <method>.
(method-keyword-formals?): New exported <method> getter.
(%compute-applicable-methods): Treat method as applicable if having
matched all specializers, still have further arguments and have
keyword-formals.
(%compute-applicable-methods): Remove unused local variable n.
(define-syntax method): Rename parse-args to parse-formals.
(parse-formals): Return formals, specializers and keyword-formals.
(compute-procedure): Make a lambda* with possibly keyword formals.
(->formal-ids): Renamed from ->proper and now returns formal-ids.
(->keyword-formal-ids): New procedure. Filter out formal ids from
a keyword formal specification.
(compute-make-procedure): Adapted for keyword formals. Needs
->formal-ids and ->keyword-formal-ids to compute the
real-next-method call.
(compute-procedures): Pass on keyword-formals.
(syntax method): Adapted for keyword formals.
* module/ice-9/psyntax.scm (define/override, define*/override): Use
instead of set! on globals.
($sc-dispatch): Renest. Will compile to the same thing as before.
* module/ice-9/psyntax-pp.scm: Regenerate.
* module/ice-9/psyntax.scm (resolve-module*, resolve-variable): New
helpers.
(free-id=?, resolve-identifier): Use new helpers.
* module/ice-9/psyntax-pp.scm: Regenerate.
* module/ice-9/psyntax.scm (expand-let, expand-letrec, ...): Name these
expanders, then install them. Allows for better code evolution and
decreases the indent.
* module/ice-9/psyntax-pp.scm: Regenerate.
* module/ice-9/psyntax.scm (build-lexical-reference): No "type"
parameter. Adapt callers.
(valid-bound-ids?, distinct-bound-ids?, bound-id-member?): Use match.
(expand-sequence, expand-top-sequence): Use match. For
expand-top-sequence, ensure that both phases of expansion are run in
order; was the case before, but by accident. Don't accumulate results
in reverse.
(parse-when-list): Use match.
* module/ice-9/psyntax.scm (id-var-name): No need for `search` to return
the marks. Simplify to use scope instead of repeating, and use match.
* module/ice-9/psyntax-pp.scm: Regenerate.
