fbuf: New data structure for buffered file I/O.

[pspp] / doc / flow-control.texi

diff --git a/doc/flow-control.texi b/doc/flow-control.texi
index fb2df35291abab9fc193f1acfc5a9d1f472b052a..04fd6c3c8fba4a1837c98deaeaac03078da766a4 100644 (file)
--- a/doc/flow-control.texi
+++ b/doc/flow-control.texi
@@ -1,3 +1,12 @@
+@c PSPP - a program for statistical analysis.
+@c Copyright (C) 2017 Free Software Foundation, Inc.
+@c Permission is granted to copy, distribute and/or modify this document
+@c under the terms of the GNU Free Documentation License, Version 1.3
+@c or any later version published by the Free Software Foundation;
+@c with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
+@c A copy of the license is included in the section entitled "GNU
+@c Free Documentation License".
+@c
 
 @node Conditionals and Looping
 @chapter Conditional and Looping Constructs
@@ -108,6 +117,9 @@ strings, comments, unquoted strings (such as the text on the
 @cmd{TITLE} or @cmd{DOCUMENT} command), or inside @cmd{BEGIN
 DATA}@dots{}@cmd{END DATA}.
 
+Substitution occurs only on whole words, so that, for example, a dummy
+variable PRINT would not be substituted into the word PRINTOUT.
+
 New variable names used as replacements are not automatically created
 as variables, but only if used in the code block in a context that
 would create them, e.g.@: on a @cmd{NUMERIC} or @cmd{STRING} command