開発環境
- OS X Lion - Apple(OS)
- TextWrangler(Text Editor) (BBEditの機能制限無料版、light版)
- Script言語:Perl
『初めてのPerl 第6版』(Randal L. Schwartz, Tom Phoenix, brian d foy 共著、近藤 嘉雪 訳、オライリー・ジャパン、2012年、ISBN978-4-87311-567-2) の9章(正規表現によるテキスト処理)、9.6(練習問題)3を解いてみる。
その他参考書籍
3.
コード(TextWrangler)
sample.pl
#!/usr/bin/env perl use strict; use warnings; use utf8; use 5.016; binmode STDIN, ':utf8'; binmode STDOUT, ':utf8'; my $in = $ARGV[0]; die unless defined $in; my $out = $in; $out =~ s/(\.\w+)$/.out/; open my $in_fh, '<', $in or die; open my $out_fh, '>', $out or die; while(<$in_fh>){ # プレースホルダーとして塗る文字「\0」を使用 s/Fred/\0/gi; s/Wilma/Fred/gi; s/\0/Wilma/gi; print $out_fh $_; }
入出力結果(Terminal)
$ cat test.txt A a kamimura's blog http://sitekamimura.blogspot.com KMI http://www.mkamimura.com Fred FRED fred frederick Alfred fred flintstone Mr. Slate Mississippi Bamm-Bamm wilama barney wilma and fred fred and wilma Wilma and Fred Fred and Wilma wilma&fred Mrs. Wilma Flintstone I saw Wilma yesterday I, Wilma! Z llama $ ./sample.pl test.txt $ cat test.txt A a kamimura's blog http://sitekamimura.blogspot.com KMI http://www.mkamimura.com Fred FRED fred frederick Alfred fred flintstone Mr. Slate Mississippi Bamm-Bamm wilama barney wilma and fred fred and wilma Wilma and Fred Fred and Wilma wilma&fred Mrs. Wilma Flintstone I saw Wilma yesterday I, Wilma! Z llama $ cat test.out A a kamimura's blog http://sitekamimura.blogspot.com KMI http://www.mkamimura.com Wilma Wilma Wilma Wilmaerick AlWilma Wilma flintstone Mr. Slate Mississippi Bamm-Bamm wilama barney Fred and Wilma Wilma and Fred Fred and Wilma Wilma and Fred Fred&Wilma Mrs. Fred Flintstone I saw Fred yesterday I, Fred! Z llama $
ちなみにJavaScriptの場合。
コード(TextWrangler)
var str = "A\na\nkamimura's blog\nhttp://sitekamimura.blogspot.com\nKMI\nhttp://www.mkamimura.com \nFred\nFRED\nfred\nfrederick\nAlfred\nfred flintstone\nMr. Slate \nMississippi\nBamm-Bamm \nwilama\nbarney\nwilma and fred\nfred and wilma\nWilma and Fred \nFred and Wilma\nwilma&fred\nMrs. Wilma Flintstone \nI saw Wilma yesterday\nI, Wilma!\nZ\nllama\n" var result = str.replace(/fred/gi, "\0"); result = result.replace(/wilma/gi, "Fred"); result = result.replace(/\0/gi, "Wilma"); $('#pre0').text(result);
pythonの場合。
sample.py
コード(TextWrangler)
#!/usr/bin/env python3.3 #-*- coding:utf-8 -*- import sys, re in_name = sys.argv[1] out_name = re.sub(r"(\.\w+)?$", ".out", in_name) with open(in_name) as in_f: text = in_f.read() text = re.sub("Fred", "\0", text, flags=re.I) text = re.sub("Wilma", "Fred", text, flags=re.I) text = re.sub("\0", "Wilma", text, flags=re.I) with open(out_name, "w") as out_f: out_f.write(text)
入出力結果(Terminal)
$ ./sample.py test.txt $ cat test.out A a kamimura's blog http://sitekamimura.blogspot.com KMI http://www.mkamimura.com Wilma Wilma Wilma Wilmaerick AlWilma Wilma flintstone Mr. Slate Mississippi Bamm-Bamm wilama barney Fred and Wilma Wilma and Fred Fred and Wilma Wilma and Fred Fred&Wilma Mrs. Fred Flintstone I saw Fred yesterday I, Fred! Z llama $
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