From ed6ba0c87d0956f4fc402f8a73369e2ea5930c2e Mon Sep 17 00:00:00 2001
From: Henrik Wallin <hedda@lysator.liu.se>
Date: Mon, 29 Nov 1999 04:52:02 +0100
Subject: [PATCH] Simple example-section added in File I/O-chapter.
Rev: tutorial/tutorial.wmml:1.165
---
tutorial/tutorial.wmml | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/tutorial/tutorial.wmml b/tutorial/tutorial.wmml
index 8a252cc100..cee62ee678 100644
--- a/tutorial/tutorial.wmml
+++ b/tutorial/tutorial.wmml
@@ -4984,6 +4984,29 @@ Append the string <i>str</i> onto the file <i>file</i>. Returns number of bytes
</section>
+<section title="Simple example">
+
+Here is a simple example of how to use the Stdio-functions.
+<p>
+<example language=pike>
+string grep(string indata, string needle)
+{
+ object out=Stdio.File(),in=Stdio.File();
+ object process=
+ Process.create_process(({"/bin/grep",needle}),
+ (["stdin":out->pipe(),
+ "stdout":in->pipe()]) );
+ out->write(indata);
+ out->close();
+ process->wait();
+ return in->read();
+}
+</example>
+This function filters the indata through the UNIX-command /bin/grep
+and return the result.
+
+</section>
+
<section title="A more complex example - a simple WWW server">
As most of you know, WWW WWW (World Wide Web), works by using a
--
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