[svnbook] r4301 committed - Merge from trunk r4299.
svnbook at googlecode.com
svnbook at googlecode.com
Thu Sep 6 09:58:06 CDT 2012
Revision: 4301
Author: cmpilato at gmail.com
Date: Thu Sep 6 07:57:51 2012
Log: Merge from trunk r4299.
http://code.google.com/p/svnbook/source/detail?r=4301
Modified:
/branches/1.6/en
/branches/1.6/en/book/ch03-advanced-topics.xml
=======================================
--- /branches/1.6/en/book/ch03-advanced-topics.xml Thu Sep 6 07:37:00 2012
+++ /branches/1.6/en/book/ch03-advanced-topics.xml Thu Sep 6 07:57:51 2012
@@ -2342,8 +2342,14 @@
performing substitutions into complex file formats that
themselves use fixed-length fields for data, or for which the
stored size of a given data field is overbearingly difficult to
- modify from outside the format's native application (as is true
- for the older Microsoft Office document formats).</para>
+ modify from outside the format's native application. Of course,
+ where binary file formats are concerned, you must always take great
+ care that any keyword substitution you introduce—fixed-length
+ or otherwise—does not violate the integrity of that format.
+ While it might sound easy enough, this can be an astonishingly
+ difficult task for most of the popular binary file formats in use
+ today, and <emphasis>not</emphasis> something to be undertaken by
+ the faint of heart!</para>
<warning>
<para>Be aware that because the width of a keyword field is
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