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9bb8793a6c
Adds CRLF as a line ending. %read-line will return
these. In the case of CRLF, %read-line will return a string "\r\n"
as the line ending.
* libguile/rdelim.c (scm_read_line): handle CRLF line delimiter
* module/ice-9/suspendable-ports.scm (%read-line): modify to handle CRLF
line delimiter
(read-line): use modified %read-line
* test-suite/tests/rdelim.test ("two lines, split, CRLF"): new test
("two long lines, split, CRLF"): new test
* doc/ref/api-io.texi: update read-line documentation
307 lines
11 KiB
Scheme
307 lines
11 KiB
Scheme
;;;; rdelim.test --- Delimited I/O. -*- mode: scheme; coding: utf-8; -*-
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;;;; Ludovic Courtès <ludo@gnu.org>
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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-suite test-rdelim)
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#:use-module (ice-9 rdelim)
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#:use-module ((rnrs io ports) #:select (open-bytevector-input-port get-u8))
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#:use-module (test-suite lib)
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#:use-module (test-suite guile-test))
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(with-test-prefix "read-line"
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(pass-if "one line"
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(let* ((s "hello, world")
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(p (open-input-string s)))
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(and (string=? s (read-line p))
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(eof-object? (read-line p)))))
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(pass-if "two lines, trim"
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(let* ((s "foo\nbar\n")
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(p (open-input-string s)))
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(and (equal? (string-tokenize s)
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(list (read-line p) (read-line p)))
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(eof-object? (read-line p)))))
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(pass-if "two lines, concat"
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(let* ((s "foo\nbar\n")
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(p (open-input-string s)))
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(and (equal? '("foo\n" "bar\n")
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(list (read-line p 'concat)
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(read-line p 'concat)))
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(eof-object? (read-line p)))))
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(pass-if "two lines, peek"
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(let* ((s "foo\nbar\n")
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(p (open-input-string s)))
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(and (equal? '("foo" #\newline "bar" #\newline)
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(list (read-line p 'peek) (read-char p)
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(read-line p 'peek) (read-char p)))
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(eof-object? (read-line p)))))
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(pass-if "two lines, split"
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(let* ((s "foo\nbar\n")
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(p (open-input-string s)))
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(and (equal? '(("foo" . #\newline)
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("bar" . #\newline))
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(list (read-line p 'split)
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(read-line p 'split)))
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(eof-object? (read-line p)))))
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(pass-if "two lines, split, CRLF"
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(let* ((s "foo\r\nbar\r\n")
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(p (open-input-string s)))
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(and (equal? '(("foo" . "\r\n")
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("bar" . "\r\n"))
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(list (read-line p 'split)
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(read-line p 'split)))
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(eof-object? (read-line p)))))
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(pass-if "two long lines, split, CRLF"
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;; Must be longer than 256 codepoints
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(let* ((text0 "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
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(text1 (string-append text0 text0 text0 text0 text0))
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(text2 (string-append text1 "\r\n" text1 "\r\n")))
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(let* ((s text2)
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(p (open-input-string s)))
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(and (equal? `((,text1 . "\r\n")
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(,text1 . "\r\n"))
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(list (read-line p 'split)
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(read-line p 'split)))
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(eof-object? (read-line p))))))
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(pass-if "two Greek lines, trim"
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(let* ((s "λαμβδα\nμυ\n")
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(p (open-input-string s)))
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(and (equal? (string-tokenize s)
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(list (read-line p) (read-line p)))
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(eof-object? (read-line p)))))
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(pass-if "decoding error"
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(let ((p (open-bytevector-input-port #vu8(65 255 66 67 68))))
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(set-port-encoding! p "UTF-8")
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(set-port-conversion-strategy! p 'error)
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(catch 'decoding-error
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(lambda ()
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(read-line p)
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#f)
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(lambda (key subr message err port)
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(and (eq? port p)
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(eqv? (get-u8 p) 255)
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(string=? (read-line p) "BCD")
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(eof-object? (read-line p)))))))
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(pass-if "decoding error, substitute"
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(let ((p (open-bytevector-input-port #vu8(65 255 66 67 68))))
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(set-port-encoding! p "UTF-8")
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(set-port-conversion-strategy! p 'substitute)
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(and (string=? (read-line p) "A\uFFFDBCD")
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(eof-object? (read-line p))))))
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(with-test-prefix "read-delimited"
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(pass-if "delimiter hit"
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(let ((p (open-input-string "hello, world!")))
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(and (string=? "hello" (read-delimited ",.;" p))
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(string=? " world!" (read-delimited ",.;" p))
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(eof-object? (read-delimited ",.;" p)))))
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(pass-if "delimiter hit, split"
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(equal? '("hello" . #\,)
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(read-delimited ",.;"
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(open-input-string "hello, world!")
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'split)))
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(pass-if "delimiter hit, concat"
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(equal? '"hello,"
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(read-delimited ",.;" (open-input-string "hello, world!")
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'concat)))
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(pass-if "delimiter hit, peek"
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(let ((p (open-input-string "hello, world!")))
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(and (string=? "hello" (read-delimited ",.;" p 'peek))
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(char=? #\, (peek-char p)))))
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(pass-if "eof"
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(eof-object? (read-delimited "}{" (open-input-string "")))))
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(with-test-prefix "read-delimited!"
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(pass-if "delimiter hit"
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(let ((s (make-string 123))
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(p (open-input-string "hello, world!")))
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(and (= 5 (read-delimited! ",.;" s p))
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(string=? (substring s 0 5) "hello")
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(= 7 (read-delimited! ",.;" s p))
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(string=? (substring s 0 7) " world!")
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(eof-object? (read-delimited! ",.;" s p)))))
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(pass-if "delimiter hit, start+end"
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(let ((s (make-string 123))
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(p (open-input-string "hello, world!")))
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(and (= 5 (read-delimited! ",.;" s p 'trim 10 30))
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(string=? (substring s 10 15) "hello"))))
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(pass-if "delimiter hit, split"
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(let ((s (make-string 123)))
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(and (equal? '(5 . #\,)
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(read-delimited! ",.;" s
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(open-input-string "hello, world!")
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'split))
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(string=? (substring s 0 5) "hello"))))
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(pass-if "delimiter hit, concat"
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(let ((s (make-string 123)))
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(and (= 6 (read-delimited! ",.;" s
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(open-input-string "hello, world!")
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'concat))
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(string=? (substring s 0 6) "hello,"))))
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(pass-if "delimiter hit, peek"
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(let ((s (make-string 123))
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(p (open-input-string "hello, world!")))
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(and (= 5 (read-delimited! ",.;" s p 'peek))
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(string=? (substring s 0 5) "hello")
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(char=? #\, (peek-char p)))))
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(pass-if "string too small"
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(let ((s (make-string 7)))
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(and (= 7 (read-delimited! "}{" s
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(open-input-string "hello, world!")))
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(string=? s "hello, "))))
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(pass-if "string too small, start+end"
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(let ((s (make-string 123)))
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(and (= 7 (read-delimited! "}{" s
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(open-input-string "hello, world!")
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'trim
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70 77))
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(string=? (substring s 70 77) "hello, "))))
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(pass-if "string too small, split"
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(let ((s (make-string 7)))
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(and (equal? '(7 . #f)
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(read-delimited! "}{" s
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(open-input-string "hello, world!")
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'split))
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(string=? s "hello, "))))
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(pass-if "eof"
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(eof-object? (read-delimited! ":" (make-string 7)
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(open-input-string ""))))
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(pass-if "eof, split"
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(eof-object? (read-delimited! ":" (make-string 7)
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(open-input-string "")))))
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(with-test-prefix "read-string"
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(pass-if "short string"
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(let* ((s "hello, world!")
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(p (open-input-string s)))
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(and (string=? (read-string p) s)
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(string=? (read-string p) ""))))
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(pass-if "100 chars"
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(let* ((s (make-string 100 #\space))
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(p (open-input-string s)))
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(and (string=? (read-string p) s)
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(string=? (read-string p) ""))))
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(pass-if "longer than 100 chars"
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(let* ((s (string-concatenate (make-list 20 "hello, world!")))
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(p (open-input-string s)))
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(and (string=? (read-string p) s)
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(string=? (read-string p) ""))))
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(pass-if-equal "longer than 100 chars, with limit"
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"hello, world!"
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(let* ((s (string-concatenate (make-list 20 "hello, world!")))
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(p (open-input-string s)))
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(read-string p 13))))
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(with-test-prefix "read-string!"
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(pass-if "buf smaller"
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(let* ((s "hello, world!")
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(len (1- (string-length s)))
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(buf (make-string len #\.))
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(p (open-input-string s)))
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(and (= (read-string! buf p) len)
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(string=? buf (substring s 0 len))
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(= (read-string! buf p) 1)
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(string=? (substring buf 0 1) (substring s len)))))
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(pass-if "buf right size"
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(let* ((s "hello, world!")
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(len (string-length s))
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(buf (make-string len #\.))
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(p (open-input-string s)))
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(and (= (read-string! buf p) len)
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(string=? buf (substring s 0 len))
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(= (read-string! buf p) 0)
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(string=? buf (substring s 0 len)))))
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(pass-if "buf bigger"
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(let* ((s "hello, world!")
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(len (string-length s))
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(buf (make-string (1+ len) #\.))
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(p (open-input-string s)))
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(and (= (read-string! buf p) len)
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(string=? (substring buf 0 len) s)
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(= (read-string! buf p) 0)
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(string=? (substring buf 0 len) s)
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(string=? (substring buf len) ".")))))
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(with-test-prefix "for-line-in-file"
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(define (test-file)
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(data-file-name "ports-test.tmp"))
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(let ((lst '())
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(lines '())
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(string "line1\nline2\nline3")
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(filename (test-file)))
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(call-with-input-string
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"A\0B\0C"
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(lambda (port)
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(pass-if "for-delimited-from-port parses stream correctly"
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(for-delimited-from-port port
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(lambda (entry)
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(set! lst (cons entry lst)))
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#:delims "\0")
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(equal? lst '("C" "B" "A")))))
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(let ((port (open-output-file filename)))
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(display string port)
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(close-port port))
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(pass-if "for-line-in-file parses file correctly"
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(for-line-in-file filename
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(lambda (line)
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(set! lines (cons line lines))))
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(equal? lines '("line3" "line2" "line1"))))
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(delete-file (test-file))
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)
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;;; Local Variables:
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;;; eval: (put 'with-test-prefix 'scheme-indent-function 1)
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;;; eval: (put 'pass-if 'scheme-indent-function 1)
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;;; End:
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