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50 lines
1.5 KiB
50 lines
1.5 KiB
;; Copyright (C) 2013
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;; "Mu Lei" known as "NalaGinrut" <NalaGinrut@gmail.com>
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;; This file 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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;; This file 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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;; 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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(define-module (language csv parser)
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#:use-module (language csv lexer)
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#:use-module (system base lalr)
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#:export (csv-read))
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(define* (syntax-error message #:optional token)
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(if (lexical-token? token)
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(throw 'syntax-error #f message
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(and=> (lexical-token-source token)
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source-location->source-properties)
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(or (lexical-token-value token)
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(lexical-token-category token))
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#f)
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(throw 'syntax-error #f message #f token #f)))
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(define *eof-object*
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(call-with-input-string "" read-char))
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(define (csv-read port)
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(let ((parse (make-parser)))
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(parse (make-csv-tokenizer port) syntax-error)))
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(define (make-parser)
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(lalr-parser
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(;; keyword
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;; TODO)
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(program (stmt) : $1
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(*eoi*) : *eof-object*)
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)))
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