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Pathname#each_line(*args) -> Enumerator (18143.0)

• 2.1.0
• 2.2.0
• 2.3.0
• 2.4.0
• 2.5.0
• 2.6.0
• 2.7.0
• 3.0
• 3.1
• 3.2
• 3.3

• インスタンスメソッド

IO.foreach(self.to_s, *args, &block) と同じです。

...IO.foreach(self.to_s, *args, &block) と同じです。

//emlist[例][ruby]{
require "pathname"

IO.write("testfile", "line1\nline2,\nline3\n")
Pathname("testfile").each_line
# => #<Enumerator: IO:foreach("testfile")>
//}

//emlist[例 ブロックを指定][ruby]{
require "pathname"

IO.write("tes...

..."line1\nline2,\nline3\n")
Pathname("testfile").each_line {|f| p f }

# => "line1\n"
# => "line2,\n"
# => "line3\n"
//}

//emlist[例 limit を指定][ruby]{
require "pathname"

IO.write("testfile", "line1\nline2,\nline3\n")
Pathname("testfile").each_line(4) {|f| p f }

# => "line"
# => "1\n"
# => "l...

...ine"
# => "2,\n"
# => "line"
# => "3\n"
//}

//emlist[例 sep を指定][ruby]{
require "pathname"

IO.write("testfile", "line1\nline2,\nline3\n")
Pathname("testfile").each_line(",") {|f| p f }

# => "line1\nline2,"
# => "\nline3\n"
//}

@see IO.foreach...

• Pathname

Pathname#each_line(*args) {|line| ... } -> nil (18143.0)

• 2.1.0
• 2.2.0
• 2.3.0
• 2.4.0
• 2.5.0
• 2.6.0
• 2.7.0
• 3.0
• 3.1
• 3.2
• 3.3

• インスタンスメソッド

IO.foreach(self.to_s, *args, &block) と同じです。

...IO.foreach(self.to_s, *args, &block) と同じです。

//emlist[例][ruby]{
require "pathname"

IO.write("testfile", "line1\nline2,\nline3\n")
Pathname("testfile").each_line
# => #<Enumerator: IO:foreach("testfile")>
//}

//emlist[例 ブロックを指定][ruby]{
require "pathname"

IO.write("tes...

..."line1\nline2,\nline3\n")
Pathname("testfile").each_line {|f| p f }

# => "line1\n"
# => "line2,\n"
# => "line3\n"
//}

//emlist[例 limit を指定][ruby]{
require "pathname"

IO.write("testfile", "line1\nline2,\nline3\n")
Pathname("testfile").each_line(4) {|f| p f }

# => "line"
# => "1\n"
# => "l...

...ine"
# => "2,\n"
# => "line"
# => "3\n"
//}

//emlist[例 sep を指定][ruby]{
require "pathname"

IO.write("testfile", "line1\nline2,\nline3\n")
Pathname("testfile").each_line(",") {|f| p f }

# => "line1\nline2,"
# => "\nline3\n"
//}

@see IO.foreach...

• Pathname

String#sum(bits = 16) -> Integer (13.0)

• 2.1.0
• 2.2.0
• 2.3.0
• 2.4.0
• 2.5.0
• 2.6.0
• 2.7.0
• 3.0
• 3.1
• 3.2
• 3.3

• インスタンスメソッド

文字列の bits ビットのチェックサムを計算します。

...m = 0
each_byte {|c| sum += c }
return 0 if sum == 0
sum & ((1 << bits) - 1)
end
//}

例えば以下のコードで UNIX System V の
sum(1) コマンドと同じ値が得られます。

//emlist[例][ruby]{
sum = 0
ARGF.each_line do |line|
sum += line.sum
end
sum %= 65536
//}

@param bits...

• String