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6e699fed6b
* module/system/base/lalr.scm (source-location->source-properties): New public function, to produce source properties that can be given to the compiler.
51 lines
2 KiB
Scheme
51 lines
2 KiB
Scheme
;;; -*- mode: scheme; coding: utf-8; -*-
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;;;
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;;; Copyright (C) 2010 Free Software Foundation, Inc.
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;;;
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;;; This library is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU Lesser General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; This library is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
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;;; General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU Lesser General Public License
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;;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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(define-module (system base lalr)
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;; XXX: In theory this import is not needed but the evaluator (not the
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;; compiler) complains about `lexical-token' being unbound when expanding
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;; `(define-record-type lexical-token ...)' if we omit it.
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#:use-module (srfi srfi-9)
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#:export (lalr-parser print-states
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make-lexical-token lexical-token?
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lexical-token-category
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lexical-token-source
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lexical-token-value
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make-source-location source-location?
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source-location-input
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source-location-line
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source-location-column
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source-location-offset
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source-location-length
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source-location->source-properties
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;; `lalr-parser' is a defmacro, which produces code that refers to
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;; these drivers.
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lr-driver glr-driver))
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;; The LALR parser generator was written by Dominique Boucher. It's available
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;; from http://code.google.com/p/lalr-scm/ and released under the LGPLv3+.
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(include-from-path "system/base/lalr.upstream.scm")
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(define (source-location->source-properties loc)
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`((filename . ,(source-location-input loc))
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(line . ,(source-location-line loc))
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(column . ,(source-location-column loc))))
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