format: Fix type code for Z format in system and portable files.

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

diff --git a/doc/dev/system-file-format.texi b/doc/dev/system-file-format.texi
index 1309cb79195d7bcb04705b624e70c90abc251654..972b1331b4fb0f0be54ff7b2118f8bb204a71293 100644 (file)
--- a/doc/dev/system-file-format.texi
+++ b/doc/dev/system-file-format.texi
@@ -267,8 +267,10 @@ stops (@samp{.}).  The variable name is padded on the right with spaces.
 
 @item int32 label_len;
 This field is present only if @code{has_var_label} is set to 1.  It is
 
 @item int32 label_len;
 This field is present only if @code{has_var_label} is set to 1.  It is

-set to the length, in characters, of the variable label, which must be a
-number between 0 and 120.
+set to the length, in characters, of the variable label.  The
+documented maximum length varies from 120 to 255 based on SPSS
+version, but some files have been seen with longer labels.  PSPP
+accepts longer labels and truncates them to 255 bytes on input.

 
 @item char label[];
 This field is present only if @code{has_var_label} is set to 1.  It has
 
 @item char label[];
 This field is present only if @code{has_var_label} is set to 1.  It has


@@ -426,7 +428,9 @@ in length.  Its type and width cannot be determined until the
 following value label variables record (see below) is read.
 
 @item char label_len;
 following value label variables record (see below) is read.
 
 @item char label_len;

-The label's length, in bytes.
+The label's length, in bytes.  The documented maximum length varies
+from 60 to 120 based on SPSS version.  PSPP supports value labels up
+to 255 bytes long.

 
 @item char label[];
 @code{label_len} bytes of the actual label, followed by up to 7 bytes
 
 @item char label[];
 @code{label_len} bytes of the actual label, followed by up to 7 bytes


@@ -1083,7 +1087,8 @@ 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
 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 variable name,
+@code{/}.  Each variable attribute set consists of a (potentially
+long) variable name,

 followed by @code{:}, followed by an attribute set with the same
 syntax as on record type 17.
 
 followed by @code{:}, followed by an attribute set with the same
 syntax as on record type 17.