sys-file-writer: Write encoding names in all-uppercase.

[pspp-builds.git] / doc / dev / system-file-format.texi

diff --git a/doc/dev/system-file-format.texi b/doc/dev/system-file-format.texi
index 3f82a4628e0918e1797e6c23a0670e42e0a5e8dc..84b3f66ff7385afd57c232730648e640e4a67062 100644 (file)
--- a/doc/dev/system-file-format.texi
+++ b/doc/dev/system-file-format.texi
@@ -60,7 +60,8 @@ if present.
 Document record, if present.
 
 @item
-Any records not explicitly included in this list, in any order.
+Extension (type 7) records, in ascending numerical order of their
+subtypes.
 
 @item
 Dictionary termination record.
@@ -986,8 +987,11 @@ The size of each element in the @code{encoding} member. Always set to 1.
 The total number of bytes in @code{encoding}.
 
 @item char encoding[];
-The name of the character encoding.  Normally this will be an official IANA characterset name or alias.
+The name of the character encoding.  Normally this will be an official
+IANA character set name or alias.
 See @url{http://www.iana.org/assignments/character-sets}.
+Character set names are not case-sensitive, but SPSS appears to write
+them in all-uppercase.
 @end table
 
 This record is not present in files generated by older software.  See
@@ -1132,8 +1136,8 @@ element.
 In record type 18, this field contains a sequence of one or more
 variable attribute sets.  If more than one variable attribute set is
 present, each one after the first is delimited from the previous by
-@code{/}.  Each variable attribute set consists of a (potentially
-long) variable name,
+@code{/}.  Each variable attribute set consists of a long
+variable name,
 followed by @code{:}, followed by an attribute set with the same
 syntax as on record type 17.