Bug #9164: IO::foreach incorrect work for binary file on windows platform

• Status: Rejected
• Assignee: -
• Target version: -
• ruby -v: 2.0.0p353,2.1.0dev
• Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN

[windwiny (wind winy)]

d2 = "123\n".b + "\x1a\xe8\xba\b".b + "\n789\n".b

File.binwrite('1.txt', d2)

p File.binread('1.txt').each_line.to_a # => ["123\n", "\x1A\xE8\xBA\b\n", "789\n"]



p File.foreach('1.txt').to_a           # => ["123\n"]

Encoding.default_external = Encoding::UTF_8
p File.foreach('1.txt').to_a           # => ["123\n"]

Encoding.default_external = Encoding::ASCII_8BIT
p File.foreach('1.txt').to_a           # => ["123\n"]

run above code on windows, File.foreach.to_a just return 1 row.
run on mac and linux, that's correct, return 3 rows.

[phasis68 (Heesob Park)]

On Windows, "\x1A"(Control+Z) means end of file.
You must use binary read mode.

p File.foreach('1.txt',mode:'rb').to_a => ["123\n", "\x1A\xE8\xBA\b\n", "789\n"]

[windwiny (wind winy)]

phasis68 (Heesob Park) wrote:

On Windows, "\x1A"(Control+Z) means end of file.
You must use binary read mode.

p File.foreach('1.txt',mode:'rb').to_a => ["123\n", "\x1A\xE8\xBA\b\n", "789\n"]

Thank you.

Sorry, my problem, it isn't a bug.

[kosaki (Motohiro KOSAKI)]

• Description updated (diff)
• Status changed from Open to Rejected