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3ff8a9d6ff
Fixes <http://bugs.gnu.org/16463>. Reported by Sree Harsha Totakura <sreeharsha@totakura.in>. * libguile/read.c (ENCODING_NAME_MAX_SIZE): New macro. (SCM_ENCODING_SEARCH_SIZE): Change to 500 + ENCODING_NAME_MAX_SIZE. (scm_i_scan_for_encoding): Return NULL if there's less than ENCODING_NAME_MAX_SIZE bytes once "coding: *" has been read. * test-suite/tests/coding.test ("line comment")["http://bugs.gnu.org/16463"]: New test.
110 lines
3.5 KiB
Scheme
110 lines
3.5 KiB
Scheme
;;;; coding.test --- test suite for coding declarations. -*- mode: scheme -*-
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;;;;
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;;;; Copyright (C) 2011, 2013, 2014 Free Software Foundation, Inc.
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;;;;
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;;;; This library is free software; you can redistribute it and/or
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;;;; modify it under the terms of the GNU Lesser General Public
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;;;; License as published by the Free Software Foundation; either
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;;;; version 3 of the License, or (at 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,
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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 GNU
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;;;; Lesser 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
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;;;; License along with this library; if not, write to the Free Software
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;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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(define-module (test-coding)
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#:use-module (test-suite lib))
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(define (with-temp-file proc)
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(let* ((name (string-copy "/tmp/coding-test.XXXXXX"))
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(port (mkstemp! name)))
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(let ((res (with-throw-handler
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#t
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(lambda ()
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(proc name port))
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(lambda _
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(delete-file name)))))
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(delete-file name)
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res)))
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(define (scan-coding str)
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(with-temp-file
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(lambda (name port)
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(display str port)
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(close port)
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;; We don't simply seek back and rescan, because the encoding scan
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;; relies on the opportunistic filling of the input buffer, which
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;; doesn't happen after a seek.
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(let* ((port (open-input-file name))
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(res (file-encoding port)))
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(close-port port)
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res))))
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(with-test-prefix "block comments"
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(pass-if-equal "first line"
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"ISO-8859-1"
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(scan-coding "#! coding: iso-8859-1 !#"))
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(pass-if-equal "first line no whitespace"
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"ISO-8859-1"
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(scan-coding "#!coding:iso-8859-1!#"))
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(pass-if-equal "second line"
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"ISO-8859-1"
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(scan-coding "#! \n coding: iso-8859-1 !#"))
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(pass-if-equal "second line no whitespace"
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"ISO-8859-1"
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(scan-coding "#!\ncoding:iso-8859-1!#"))
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(pass-if-equal "third line"
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"ISO-8859-1"
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(scan-coding "#! \n coding: iso-8859-1 \n !#"))
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(pass-if-equal "third line no whitespace"
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"ISO-8859-1"
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(scan-coding "#!\ncoding:iso-8859-1\n!#")))
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(with-test-prefix "line comment"
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(pass-if-equal "first line, no whitespace, no nl"
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"ISO-8859-1"
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(scan-coding ";coding:iso-8859-1"))
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(pass-if-equal "first line, whitespace, no nl"
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"ISO-8859-1"
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(scan-coding "; coding: iso-8859-1 "))
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(pass-if-equal "first line, no whitespace, nl"
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"ISO-8859-1"
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(scan-coding ";coding:iso-8859-1\n"))
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(pass-if-equal "first line, whitespace, nl"
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"ISO-8859-1"
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(scan-coding "; coding: iso-8859-1 \n"))
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(pass-if-equal "second line, no whitespace, no nl"
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"ISO-8859-1"
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(scan-coding "\n;coding:iso-8859-1"))
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(pass-if-equal "second line, whitespace, no nl"
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"ISO-8859-1"
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(scan-coding "\n; coding: iso-8859-1 "))
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(pass-if-equal "second line, no whitespace, nl"
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"ISO-8859-1"
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(scan-coding "\n;coding:iso-8859-1\n"))
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(pass-if-equal "second line, whitespace, nl"
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"ISO-8859-1"
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(scan-coding "\n; coding: iso-8859-1 \n"))
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(pass-if-equal "http://bugs.gnu.org/16463"
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;; On Guile <= 2.0.9, this would return "ISO-8".
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"ISO-8859-1"
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(scan-coding (string-append (make-string 485 #\space)
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"; coding: ISO-8859-1"))))
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