* module/ice-9/boot-9.scm (%cond-expand-features): Add srfi-46.
* doc/ref/srfi-modules.texi (SRFI-0): Add srfi-46 to the list of core
features.
(SRFI-46): New node.
* doc/ref/api-macros.texi (Syntax Rules): Mention that the custom
ellipsis identifier support is specified by SRFI-46.
* test-suite/tests/syntax.test ("syntax-rules"): Add ellipsis hygiene
test from SRFI-46.
* module/ice-9/psyntax.scm (binding-type): Update the header comment
to mention the new 'ellipsis' binding type.
(macros-only-env): Preserve ellipsis bindings.
(ellipsis?): Add 'r' and 'mod' as arguments. Search the lexical
environment for an ellipsis binding, and use it.
(gen-syntax): Adapt to the additional arguments of 'ellipsis?'.
(with-ellipsis): New core syntax.
(convert-pattern): Add unary 'ellipsis?' procedure as an argument.
(gen-clause): Adapt to the additional arguments of 'ellipsis?'.
Pass unary 'ellipsis?' procedure to 'convert-pattern'.
(syntax-case): Adapt to the additional arguments of 'ellipsis?'.
(syntax-local-binding): Support new 'ellipsis' binding type.
(syntax-rules): Add support for a custom ellipsis identifier as
the first operand, as per R7RS. Collect common code within new
local procedure 'expand-syntax-rules'.
* module/ice-9/psyntax-pp.scm: Regenerate.
* module/ice-9/local-eval.scm (analyze-identifiers): Add support for
'ellipsis' binding type.
* doc/ref/api-macros.texi (Syntax Rules): Add docs for R7RS custom
ellipsis syntax. Use @dots{}.
(Syntax Case): Add docs for 'with-ellipsis'. Use @dots{}.
(Syntax Transformer Helpers): Update to include new 'ellipsis'
binding type.
* test-suite/tests/syntax.test: Add tests.
* doc/ref/api-macros.texi (Macro Expansion): New section.
* doc/ref/api-procedures.texi (Compiled Procedures): Beginnings of a
revision. Not finished.
* doc/ref/compiler.texi (Compiling to the Virtual Machine): Beginnings
of a revision. CPS and bytecode are not done yet.
Fixes <http://bugs.gnu.org/14203> reported by Nikita Karetnikov.
* doc/ref/api-macros.texi (Defining Macros, Syntax Rules): Fix
definition of 'my-or' example macro to use the let-bound variable.
* module/ice-9/boot-9.scm:
* module/ice-9/psyntax.scm (syntax-module, syntax-local-binding)
(syntax-locally-bound-identifiers): After boot, move these definitions
to a new (system syntax) module.
* module/ice-9/psyntax-pp.scm: Regenerate.
* doc/ref/api-macros.texi: Add some words about syntax-module and
friends being in (system syntax).
* module/ice-9/boot-9.scm (syntax-local-binding): New binding.
* module/ice-9/psyntax.scm: Locally define a fluid that holds the
"transformer environment". with-transformer-environment calls a
procedure with the transformer environment, or raises an error if
called outside the extent of a transformer. Bind
transformer-environment in expand-macro.
(resolve-identifier): Backport this helper from master.
(syntax-local-binding): New procedure to return binding information of
a bound identifier (a lexical, macro, a pattern variable, a displaced
lexical, a global, or some other form).
* module/ice-9/psyntax-pp.scm: Regenerate.
* doc/ref/api-macros.texi (Syntax Transformer Helpers): Add docs for
syntax-local-binding, and syntax-source, and move some other
descriptions to this new section.
* doc/ref/api-macros.texi: New file, documenting macros. Removed some
old cruft, and started documenting hygienic macros.
* doc/ref/api-procedures.texi: Moved macro things out of here.
* doc/ref/guile.texi: Separate macros from procedures.
* doc/ref/api-data.texi: Update some xrefs.
* doc/ref/Makefile.am: Add api-macros.texi.
