tmpindex.xml

by Randal L. Schwartz and Tom Phoenix ISBN 0-596-00132-0 Third Edition, published July 2001. (See

operator for</secondary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-299" file="ch03_07.htm" sect="3.7.2. The sort Operator">
<primary>ASCIIbetical order, sort
operator for</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-300" file="ch03_08.htm" sect="3.8. Scalar and List Context">
<primary>scalar context</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-301" file="ch03_08.htm" sect="3.8. Scalar and List Context">
<primary>list
context</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-302" file="ch03_08.htm" sect="3.8. Scalar and List Context">
<primary>expressions</primary>
<secondary>context
and</secondary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-303" file="ch03_08.htm" sect="3.8. Scalar and List Context">
<primary>context</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-304" file="ch03_08.htm" sect="3.8. Scalar and List Context">
<primary>context</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-306" file="ch03_08.htm" sect="3.8.3. Forcing Scalar Context">
<primary>scalar
context</primary>
<secondary>forcing</secondary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-309" file="ch03_09.htm" sect="3.9. &lt;STDIN&gt; in List Context">
<primary>operator</primary>
<secondary>context
and</secondary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-310" file="ch03_09.htm" sect="3.9. &lt;STDIN&gt; in List Context">
<primary>end-of-file/end-of-input</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-313" file="ch04_01.htm" sect="4.1. System and User Functions">
<primary>subroutines</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-314" file="ch04_01.htm" sect="4.1. System and User Functions">
<primary>system
functions</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-315" file="ch04_01.htm" sect="4.1. System and User Functions">
<primary>user
functions</primary>
<see>subroutines</see>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-316" file="ch04_02.htm" sect="4.2. Defining a Subroutine">
<primary>subroutines</primary>
<secondary>defining</secondary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-317" file="ch04_02.htm" sect="4.2. Defining a Subroutine">
<primary>sub
keyword</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-318" file="ch04_02.htm" sect="4.2. Defining a Subroutine">
<primary>body of
subroutine</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-319" file="ch04_03.htm" sect="4.3. Invoking a Subroutine">
<primary>subroutines</primary>
<secondary>invoking</secondary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-320" file="ch04_03.htm" sect="4.3. Invoking a Subroutine">
<primary>&amp; ampersand</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-321" file="ch04_03.htm" sect="4.3. Invoking a Subroutine">
<primary>ampersand (&amp;)</primary>
<secondary>in
subroutine names</secondary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-322" file="ch04_03.htm" sect="4.3. Invoking a Subroutine">
<primary>subroutines</primary>
<secondary>calling</secondary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-323" file="ch04_03.htm" sect="4.3. Invoking a Subroutine">
<primary>invoking subroutines</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-324" file="ch04_04.htm" sect="4.4. Return Values">
<primary>return
values</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-325" file="ch04_04.htm" sect="4.4. Return Values">
<primary>void
context</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-326" file="ch04_04.htm" sect="4.4. Return Values">
<primary>context</primary>
<secondary>void</secondary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-327" file="ch04_04.htm" sect="4.4. Return Values">
<primary>list context</primary>
<secondary>return values
and</secondary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-328" file="ch04_04.htm" sect="4.4. Return Values">
<primary>wantarray
function</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-330" file="ch04_05.htm" sect="4.5. Arguments">
<primary>arguments</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-331" file="ch04_05.htm" sect="4.5. Arguments">
<primary>@_ array
variable</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-332" file="ch04_05.htm" sect="4.5. Arguments">
<primary>parameter lists</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-333" file="ch04_05.htm" sect="4.5. Arguments">
<primary>argument lists</primary>
<see>parameter
lists</see>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-334" file="ch04_05.htm" sect="4.5. Arguments">
<primary>&amp;max
subroutine</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-337" file="ch04_06.htm" sect="4.6. Private Variables in Subroutines">
<primary>lexical
variables</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-338" file="ch04_06.htm" sect="4.6. Private Variables in Subroutines">
<primary>private
variables</primary>
<see>lexical variables</see>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-339" file="ch04_06.htm" sect="4.6. Private Variables in Subroutines">
<primary>my
operator</primary>
<secondary>creating lexical variables
with</secondary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-340" file="ch04_06.htm" sect="4.6. Private Variables in Subroutines">
<primary>scoped
variables</primary>
<see>lexical variables</see>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-341" file="ch04_06.htm" sect="4.6. Private Variables in Subroutines">
<primary>subroutines</primary>
<secondary>lexical variables
in</secondary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-342" file="ch04_06.htm" sect="4.6. Private Variables in Subroutines">
<primary>semicolon (;)</primary>
<secondary>return value
expressions and</secondary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-343" file="ch04_07.htm" sect="4.7. The local Operator">
<primary>local
operator</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-344" file="ch04_07.htm" sect="4.7. The local Operator">
<primary>variables</primary>
<secondary>value of,
saving</secondary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-345" file="ch04_07.htm" sect="4.7. The local Operator">
<primary>values</primary>
<secondary>saving using local
operator</secondary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-346" file="ch04_07.htm" sect="4.7. The local Operator">
<primary>stacks</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-347" file="ch04_07.htm" sect="4.7.1. The Difference Between local and my">
<primary>my
operator</primary>
<secondary>using instead of local
operator</secondary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-348" file="ch04_08.htm" sect="4.8. Variable-length Parameter Lists">
<primary>parameter
lists</primary>
<secondary>variable-length</secondary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-349" file="ch04_08.htm" sect="4.8. Variable-length Parameter Lists">
<primary>variable-length parameter
lists</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-350" file="ch04_08.htm" sect="4.8.1. A Better &amp;max Routine">
<primary>&amp;max
subroutine</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-351" file="ch04_08.htm" sect="4.8.2. Empty Parameter Lists">
<primary>parameter
lists</primary>
<secondary>empty</secondary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-354" file="ch04_09.htm" sect="4.9. Notes on Lexical (my) Variables">
<primary>lexical
variables</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-355" file="ch04_09.htm" sect="4.9. Notes on Lexical (my) Variables">
<primary>scope of
variables</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-356" file="ch04_09.htm" sect="4.9. Notes on Lexical (my) Variables">
<primary>my
operator</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-357" file="ch04_10.htm" sect="4.10. The use strict Pragma">
<primary>use strict
pragma</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-358" file="ch04_10.htm" sect="4.10. The use strict Pragma">
<primary>restrictions</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-359" file="ch04_10.htm" sect="4.10. The use strict Pragma">
<primary>pragmas</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-360" file="ch04_10.htm" sect="4.10. The use strict Pragma">
<primary>_
underscore</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-361" file="ch04_10.htm" sect="4.10. The use strict Pragma">
<primary>underscore
(_)</primary>
<secondary>in variable
names</secondary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-362" file="ch04_11.htm" sect="4.11. The return Operator">
<primary>return
operator</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-363" file="ch04_11.htm" sect="4.11.1. Omitting the Ampersand">
<primary>&amp;
ampersand</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-364" file="ch04_11.htm" sect="4.11.1. Omitting the Ampersand">
<primary>ampersand
(&amp;)</primary>
<secondary>omitting</secondary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-365" file="ch04_11.htm" sect="4.11.1. Omitting the Ampersand">
<primary>functions</primary>
<secondary>builtin, ampersand
and</secondary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-366" file="ch04_11.htm" sect="4.11.1. Omitting the Ampersand">
<primary>builtin
functions</primary>
<secondary>ampersand
and</secondary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-367" file="ch04_11.htm" sect="4.11.1. Omitting the Ampersand">
<primary>modules</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-368" file="ch04_11.htm" sect="4.11.1. Omitting the Ampersand">
<primary>prototypes</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-371" file="ch05_01.htm" sect="5. Hashes">
<primary>hashes</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-372" file="ch05_01.htm" sect="5. Hashes">
<primary>associative
arrays</primary>
<see>hashes</see>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-373" file="ch05_01.htm" sect="5.1. What Is a Hash?">
<primary>hash
keys</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-374" file="ch05_01.htm" sect="5.1. What Is a Hash?">
<primary>keys</primary>
<see>hash keys</see>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-375" file="ch05_01.htm" sect="5.1. What Is a Hash?">
<primary>key-value pairs</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-376" file="ch05_01.htm" sect="5.1.1. Why Use a Hash?">
<primary>hashes</primary>
<secondary>reasons for
using</secondary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-377" file="ch05_01.htm" sect="5.1.1. Why Use a Hash?">
<primary>names</primary>
<secondary>hashes
and</secondary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-378" file="ch05_01.htm" sect="5.1.1. Why Use a Hash?">
<primary>IP addresses, hashes and</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-379" file="ch05_01.htm" sect="5.1.1. Why Use a Hash?">
<primary>word count, hashes and</primary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-380" file="ch05_01.htm" sect="5.1.1. Why Use a Hash?">
<primary>databases</primary>
<secondary>hashes
and</secondary>
</indexterm>

<indexterm xmlns:xt="http://www.jclark.com/xt" id="INDEX-381" file="ch05_02.htm" sect="5.2. Hash Element Access">
<p