[9fans] /bin/split

[9fans] /bin/split

[arisawa]

Hello,

The command
	split -e expression file
produces files that are hard to understand to me.

What is intended by -e option ?

For example, let be samp:
	----- samp ---
	From alice
	abc
	defg
	From bob
	hijk
	lmn
	--------------

Command
	split -e '^From' samp
split samp into two. OK, this is reasonable.

But
	split -e 'From' samp
split samp into 6 files with only one line.

Kenji Arisawa
E-mail: arisawa@aichi-u.ac.jp

Re: [9fans] /bin/split

[rob pike]

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Wow... split.  I haven't run that command in a long long time.
It has an unitialized variable. add a call to memset after
/sys/src/cmd/split.c:75:

			Resub match[2];
			memset(match, 0, sizeof match);	/* add this line */
			line[Blinelen(b)-1] = 0;

This fixes your example, anyway.

-rob


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From: arisawa@ar.aichi-u.ac.jp
To: 9fans@nx.aichi-u.ac.jp
Subject: [9fans] /bin/split
Date: Thu, 19 Oct 100 09:23:29 +0900
Message-ID: <20001020103912.AA63A199E7@mail>

Hello,

The command
	split -e expression file
produces files that are hard to understand to me.

What is intended by -e option ?

For example, let be samp:
	----- samp ---
	From alice
	abc
	defg
	From bob
	hijk
	lmn
	--------------

Command
	split -e '^From' samp
split samp into two. OK, this is reasonable.

But
	split -e 'From' samp
split samp into 6 files with only one line.

Kenji Arisawa
E-mail: arisawa@aichi-u.ac.jp