96 lines
3.1 KiB
Scheme
96 lines
3.1 KiB
Scheme
;;; nyacc/lang/c99/parser.scm
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;;;
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;;; Copyright (C) 2015-2017 Matthew R. Wette
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;;;
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;;; This program is free software: you can redistribute it and/or modify
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;;; it under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation, either version 3 of the License, or
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;;; (at your option) any later version.
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;;;
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;;; This program is distributed in the hope that it will be useful,
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;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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;; C parser
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(define-module (nyacc lang c99 parser)
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#:export (parse-c99)
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#:use-module (nyacc lex)
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#:use-module (nyacc parse)
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#:use-module (nyacc lang util)
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#:use-module (nyacc lang c99 cpp)
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)
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(cond-expand
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(guile-2)
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(guile
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(use-modules (ice-9 syncase))
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(use-modules (ice-9 optargs)))
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(mes))
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(include-from-path "nyacc/lang/c99/mach.d/c99tab.scm")
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(include-from-path "nyacc/lang/c99/body.scm")
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(include-from-path "nyacc/lang/c99/mach.d/c99act.scm")
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;; Parse given a token generator. Uses fluid @code{*info*}.
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;; A little ugly wrt re-throw but
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(define raw-parser
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(let ((parser (make-lalr-parser
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(list (cons 'len-v len-v) (cons 'pat-v pat-v)
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(cons 'rto-v rto-v) (cons 'mtab mtab)
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(cons 'act-v act-v)))))
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(lambda* (lexer #:key (debug #f))
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(catch
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'nyacc-error
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(lambda () (parser lexer #:debug debug))
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(lambda (key fmt . args)
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(report-error fmt args)
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(pop-input) ; not sure this is the right way
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(throw 'c99-error "C99 parse error"))))))
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;; This is used to parse included files at top level.
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(define (run-parse)
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(let ((info (fluid-ref *info*)))
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(raw-parser (gen-c-lexer) #:debug (cpi-debug info))))
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;; @deffn {Procedure} parse-c99 [#:cpp-defs def-a-list] [#:inc-dirs dir-list] \
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;; [#:mode ('code|'file)] [#:debug bool]
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;; This needs to be explained in some detail.
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;; tdd = typedef dict: (("<time>" time_t) ... ("<unistd.h>" ...))
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;; Default mode is @code{'code}.
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;; @example
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;; (with-input-from-file "abc.c"
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;; (parse-c #:cpp-defs '("ABC=123"))
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;; #:inc-dirs '(("." "./incs" "/usr/include"))
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;; #:inc-help (append '("myinc.h" "foo_t" "bar_t") c99-std-help)
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;; #:mode 'file))
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;; @end example
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;; @end deffn
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(define* (parse-c99 #:key
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(cpp-defs '()) ; CPP defines
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(inc-dirs '()) ; include dirs
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(inc-help '()) ; include helpers
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(mode 'code) ; mode: 'file or 'code
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(xdef? #f) ; pred to determine expand
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(debug #f)) ; debug
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(catch
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'c99-error
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(lambda ()
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(if (and (pair? cpp-defs) (pair? (car cpp-defs)))
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(error "usage deprecated: use #:cpp-defs '(\"ABC=123\")"))
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(let ((info (make-cpi debug cpp-defs (cons "." inc-dirs) inc-help)))
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(with-fluid*
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*info* info
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(lambda ()
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(raw-parser (gen-c-lexer #:mode mode #:xdef? xdef?)
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#:debug debug)))))
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(lambda (key fmt . rest)
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(report-error fmt rest)
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#f)))
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;; --- last line ---
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