The structure of a chart plus its data. Charts do not have a
``light'' format.
-@item @var{prefix}_model.xml
-@itemx @var{prefix}_pmml.xml
-@itemx @var{prefix}_stats.xml
+@item @var{prefix}_model.scf
+@itemx @var{prefix}_pmml.scf
Not yet investigated. The corpus contains only one example of each.
+
+@item @var{prefix}_stats.xml
+Not yet investigated. The corpus contains few examples.
@end table
The @file{@var{prefix}} in the names of the detail members is
that was executed, e.g.@: ``Frequencies'' or ``T-Test''. Labels are
often very generic, especially within a @code{container}, e.g.@:
``Title'' or ``Warnings'' or ``Notes''. Label text is localized
-according to the output language, e.g. in Italian a frequency table
+according to the output language, e.g.@: in Italian a frequency table
procedure is labeled ``Frequenze''.
The corpus contains one example of an empty label, one that contains
@code{header} includes @code{version}, a version number that affects
the interpretation of some of the other data in the member. We will
-refer to ``version 1'' and ``version 3'' members later on. It also
-@code{table-id} is a binary version of @code{tableId} attribute in the
-structure member that refers to the detail member. For example, if
-@code{tableId} is @code{-4154297861994971133}, then @code{table-id}
+refer to ``version 1'' and ``version 3'' members later on.
+@code{table-id} is a binary version of the @code{tableId} attribute in
+the structure member that refers to the detail member. For example,
+if @code{tableId} is @code{-4154297861994971133}, then @code{table-id}
would be 0xdca00003. The meaning of the other variable parts of the
header is not known.
(i0 | i-1) (00 | 01) 00 (00 | 01)
int
byte[decimal] byte[grouping]
- int[x5] string*[x5] /* @r{custom currency} */
- int[x6] byte*[x6]
+ int[n-ccs] string*[n-ccs] /* @r{custom currency} */
+ styles2
+
+x2 := 00 00 00 01 00 00 00 00 00 00 00 00 00 02 00 00 00 00 /* @r{18 bytes} */
+
+styles2 := i0 /* @r{version 1} */
+styles2 := count(count(x5) count(x6)) /* @r{version 3} */
+x5 := byte*33 int[n] int*n
+x6 := 01 00 (03 | 04) 00 00 00
+ string[command] string[subcommand]
+ string[language] string[charset] string[locale]
+ (00 | 01) 00 (00 | 01) (00 | 01)
+ int
+ byte[decimal] byte[grouping]
+ byte*8 01
+ (string[dataset] string[datafile] i0 int i0)?
+ int[n-ccs] string*[n-ccs]
+ 2e (00 | 01) (i2000000 i0)?
@end example
In every example in the corpus, @code{x1} is 240. The meaning of the
follow it are @code{00 00 00 01 00 00 00 00 00 00 00 00 00 02 00 00 00
00}. The meaning of these bytes is unknown.
-Observed values of @code{x3} vary from 16 to 150. The bytes that
-follow it vary somewhat.
+In every example in the corpus for version 1, @code{x3} is 16 and the
+bytes that follow it are @code{00 00 00 01 00 00 00 01 00 00 00 00 01
+01 01 01}. In version 3, observed @code{x3} varies from 117 to 150,
+and its bytes include a 1-byte count at offset 0x34. When the count
+is nonzero, a text string of that length at offset 0x35 is the name of
+a ``TableLook'', e.g. ``Default'' or ``Academic''.
Observed values of @code{x4} vary from 0 to 17. Out of 7060 examples
in the corpus, it is nonzero only 36 times.
@samp{,}, @samp{.}, @samp{'}, @samp{ }, and zero (presumably
indicating that digits should not be grouped).
-@code{x5} is observed as either 0 or 5. When it is 5, the following
-strings are CCA through CCE format strings. Most commonly these are
-all @code{-,,,} but other strings occur.
+@code{n-ccs} is observed as either 0 or 5. When it is 5, the
+following strings are CCA through CCE format strings. Most commonly
+these are all @code{-,,,} but other strings occur.
@example
font := byte[index] 31 string[typeface]
the case 98% of the time in the corpus.
@example
-category := value i1
- (00 | 01 (00 | 01 | 02) | 02) 00 00 00
+category := value[name] (terminal | group)
+terminal-category := 00 00 00 i2 int[index] i0
+@end example
+
+@code{name} is the name of the category (or group).
+
+@code{category} can represent a terminal category. In that case,
+@code{index} is a nonnegative integer less than @code{n-categories} in
+the @code{dimension} in which the @code{category} is nested (directly
+or indirectly).
+
+Alternatively, @code{category} can represent a @code{group} of nested
+categories:
+
+@example
+group := (00 | 01)[merge] 00 01 (i0 | i2)[data]
+ i-1 int[n-subcategories] category*[n-subcategories]
+@end example
+
+Ordinarily a group has some nested content, so that
+@code{n-subcategories} is positive, but a few instances of groups with
+@code{n-subcategories} 0 has been observed.
+
+If @code{merge} is 00, the most common value, then the group is really
+a distinct group that should be represented as such in the visual
+representation and user interface. If @code{merge} is 01, however,
+the categories in this group should be shown and treated as if they
+were direct children of the group's parent group (or if it has no
+parent group, then direct children of the dimension), and this group's
+name is irrelevant and should not be displayed. (Merged groups can be
+nested!)
+
+@code{data} appears to be i2 when all of the categories within a group
+are terminal categories that directly represent data values for a
+variable (e.g. in a frequency table or crosstabulation, a group of
+values in a variable being tabulated) and i0 otherwise, but this might
+be naive.
+
+@example
+data := int[layers] int[rows] int[columns] int*[n-dimensions]
+ int[n-data] datum*[n-data]
+@end example
+
+The values of @code{layers}, @code{rows}, and @code{columns} each
+specifies the number of dimensions represented in layers or rows or
+columns, respectively, and their values sum to the number of
+dimensions.
+
+The @code{n-dimensions} integers are a permutation of the 0-based
+dimension numbers. The first @code{layers} of them specify each of
+the dimensions represented by layers, the next @code{rows} of them
+specify the dimensions represented by rows, and the final
+@code{columns} of them specify the dimensions represented by columns.
+When there is more than one dimension of a given kind, the inner
+dimensions are given first.
+
+@example
+datum := int64[index] 00? value /* @r{version 1} */
+datum := int64[index] value /* @r{version 3} */
+@end example
+
+The format of a datum varies slightly from version 1 to version 3: in
+version 1 it allows for an extra optional 00 byte.
+
+A datum consists of an index and a value. Suppose there are @math{d}
+dimensions and dimension @math{i} for @math{0 \le i < d} has
+@math{n_i} categories. Consider the datum at coordinates @math{x_i}
+for @math{0 \le i < d}; note that @math{0 \le x_i < n_i}. Then the
+index is calculated by the following algorithm:
+
+@display
+let index = 0
+for each @math{i} from 0 to @math{d - 1}:
+ index = @math{n_i \times} index + @math{x_i}
+@end display
+
+For example, suppose there are 3 dimensions with 3, 4, and 5
+categories, respectively. The datum at coordinates (1, 2, 3) has
+index @math{5 \times (4 \times (3 \times 0 + 1) + 2) + 3 = 33}.
+
+@example
+value := 00? 00? 00? 00? raw-value
+raw-value :=
+ 01 value-mod int32[format] double[x]
+ | 02 value-mod int32[format] double[x]
+ string[varname] string[vallab] (01 | 02 | 03)
+ | 03 string[local] value-mod string[id] string[c] (00 | 01)[type]
+ | 04 value-mod int32[format] string[vallab] string[varname]
+ (01 | 02 | 03) string[s]
+ | 05 value-mod string[varname] string[varlabel] (01 | 02 | 03)
+ | value-mod string[format] int32[n-args] arg*[n-args]
+arg :=
+ i0 value
+ | int32[x] i0 value*[x + 1] /* @r{x > 0} */
+@end example
+
+A @code{value} boils down to a number or a string. There are several
+possibilities, which one can distinguish by the first nonzero byte in
+the encoding:
+
+@table @code
+@item 01
+The numeric value @code{x}, presented to the user formatted according
+to @code{format}, which is in the format described for system files.
+@xref{System File Output Formats}, for details. Most commonly
+@code{format} has width 40 (the maximum).
+
+An @code{x} with the maximum negative double @code{-DBL_MAX}
+represents the system-missing value SYSMIS. (HIGHEST and LOWEST have
+not been observed.) @xref{System File Format}, for more about these
+special values.
+
+@item 02
+Similar to @code{01}, with the additional information that @code{x} is
+a value of variable @code{varname} and has value label @code{vallab}.
+Both @code{varname} and @code{vallab} can be the empty string, the
+latter very commonly.
+
+The meaning of the final byte is unknown. Possibly it is connected to
+whether the value or the label should be displayed.
+
+@item 03
+A text string, in two forms: @code{c} is in English, and sometimes
+abbreviated or obscure, and @code{local} is localized to the user's
+locale. In an English-language locale, the two strings are often the
+same, and in the cases where they differ, @code{local} is more
+appropriate for a user interface, e.g.@: @code{c} of ``Not a PxP table
+for MCN...'' versus @code{local} of ``Computed only for a PxP table,
+where P must be greater than 1.''
+
+@code{c} and @code{local} are always either both empty or both
+nonempty.
+
+@code{id} is a brief identifying string whose form seems to resemble a
+programming language identifier, e.g.@: @code{cumulative_percent} or
+@code{factor_14}. It is not unique.
+
+@code{type} is 00 for text taken from user input, such as syntax
+fragment, expressions, file names, data set names, and 01 for fixed
+text strings such as names of procedures or statistics. In the former
+case, @code{id} is always the empty string; in the latter case,
+@code{id} is still sometimes empty.
+
+@item 04
+The string value @code{s}, presented to the user formatted according
+to @code{format}. The format for a string is not too interesting, and
+clearly invalid formats like A16.39 or A255.127 or A134.1 abound in
+the corpus, so readers should probably ignore the format entirely.
+
+@code{s} is a value of variable @code{varname} and has value label
+@code{vallab}. @code{varname} is never empty but @code{vallab} is
+commonly empty.
+
+The meaning of the final byte is unknown.
+
+@item 05
+Variable @code{varname}, which is rarely observed as empty in the
+corpus, with variable label @code{varlabel}, which is often empty.
+
+The meaning of the final byte is unknown.
+
+@item 31
+@itemx 58
+(These bytes begin a @code{value-mod}.) A format string, analogous to
+@code{printf}, followed by one or more arguments, each of which has
+one or more values. The format string uses the following syntax:
+
+@table @code
+@item \%
+@item \:
+@item \[
+@item \]
+Each of these expands to the character following @samp{\\}. This is
+useful to escape characters that have special meaning in format
+strings. These are effective inside and outside the @code{[@dots{}]}
+syntax forms described below.
+
+@item \n
+Expands to a new-line, inside or outside the @code{[@dots{}]} forms
+described below.
+
+@item ^@var{i}
+Expands to a formatted version of argument @var{i}, which must have
+only a single value. For example, @code{^1} would expand to the first
+argument's @code{value}.
+
+@item [:@var{a}:]@var{i}
+Expands @var{a} for each of the @code{value}s in @var{i}. @var{a}
+should contain one or more @code{^@var{j}} conversions, which are
+drawn from the values for argument @var{i} in order. Some examples
+from the corpus:
+
+@table @code
+@item [:^1:]1
+All of the values for the first argument, concatenated.
+
+@item [:^1\n:]1
+Expands to the values for the first argument, each followed by
+a new-line.
+
+@item [:^1 = ^2:]2
+Expands to @code{@var{x} = @var{y}} where @var{x} is the second
+argument's first value and @var{y} is its second value. (This would
+be used only if the argument has two values. With additional values,
+the second and third values would be directly concatenated, which
+would look funny.)
+@end table
+
+@item [@var{a}:@var{b}:]@var{i}
+This extends the previous form so that the first values are expanded
+using @var{a} and later values are expanded using @var{b}. For an
+unknown reason, within @var{a} the @code{^@var{j}} conversions are
+instead written as @code{%@var{j}}. Some examples from the corpus:
+
+@table @code
+@item [%1:*^1:]1
+Expands to all of the values for the first argument, separated by
+@samp{*}.
+
+@item [%1 = %2:, ^1 = ^2:]1
+Given appropriate values for the first argument, expands to @code{X =
+1, Y = 2, Z = 3}.
+
+@item [%1:, ^1:]1
+Given appropriate values, expands to @code{1, 2, 3}.
+@end table
+@end table
+
+The format string is localized to the user's locale.
+@end table
+
+@example
+value-mod :=
+ 31 i0 (i0 | i1 string[subscript]) value-mod-i0-v1 /* @r{version 1} */
+ | 31 i0 (i0 | i1 string[subscript]) value-mod-i0-v3 /* @r{version 3} */
+ | 31 i1 int32[footnote-number] format
+ | 31 i2 (00 | 01 | 02) 00 (i1 | i2 | i3) format
+ | 31 i3 00 00 01 00 i2 format
+ | 58
+value-mod-i0-v1 := 00 (i1 | i2) 00 00 int32 00 00
+value-mod-i0-v3 := count(format-string
+ (58 | 31 style)
+ (58
+ | 31 i0 i0 i0 i0 01 00 (01 | 02 | 08)
+ 00 08 00 0a 00))
+
+style := 01? 00? 00? 00? 01 string[fgcolor] string[bgcolor] string[font] byte
+format := 00 00 count(format-string (58 | 31 style) 58)
+format-string := count((i0 (58 | 31 string))?)
+@end example
+
+A @code{value-mod} can specify special modifications to a @code{value}:
+
+@itemize @bullet
+@item
+The @code{footnote-number}, if present, specifies a footnote that the
+@code{value} references. The footnote's marker is shown appended to
+the main text of the @code{value}, as a superscript.
+
+@item
+The @code{subscript}, if present, specifies a string to append to the
+main text of the @code{value}, as a subscript. The subscript text is
+normally a brief indicator, e.g.@: @samp{a} or @samp{a,b}, with its
+meaning indicated by the table caption. In this usage, subscripts are
+similar to footnotes; one apparent difference is that a @code{value}
+can only reference one footnote but a subscript can list more than one
+letter.
+
+@item
+The @code{format}, if present, is a format string for substitutions
+using the syntax explained previously. It appears to be an
+English-language version of the localized format string in the
+@code{value} in which the @code{format} is nested.
+
+@item
+The @code{style}, if present, changes the style for this individual
+@code{value}.
+@end itemize
+
+@node SPV Legacy Detail Member Binary Format
+@subsection SPV Legacy Detail Member Binary Format
+
+A legacy detail member's binary file has a much simpler format than
+the light member binary format.
+
+@example
+legacy-member := 00 byte[version] int16[n-sources] int32[file-size]
+ metadata*[n-sources] data*[n-sources]
+@end example
+
+@code{version} is a version number that affects the interpretation of
+some of the other data in the member. Versions 0xaf and 0xb0 are
+known. We will refer to ``version 0xaf'' and ``version 0xb0'' members
+later on.
+
+A legacy member consists of @code{n-sources} data sources, each of
+which has @code{metadata} and @code{data}.
+
+@code{file-size} is the size of the file, in bytes.
+
+@example
+metadata := int32[per-series] int32[n-series] int32[offset] source-name
+source-name := byte*[32] /* @r{version 0xaf} */
+source-name := byte*[64] int32 /* @r{version 0xb0} */
+@end example
+
+A data source consists of @code{n-series} series of data, with
+@code{per-series} data items per series. Depending on the version,
+@code{source-name} is a 32- or 64-byte string padded on the right with
+zero bytes. The names that appear in the corpus are very generic,
+usually @code{tableData} or @code{source0}. The @code{offset} is the
+offset, in bytes, from the beginning of the file to the start of this
+data source's @code{data}.
+
+The meaning of the number in version 0xb0 @code{source-name} is
+unknown.
+
+@example
+
@end example
projects / pspp / blobdiff