[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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