+#include <assert.h>
#include <float.h>
#include <stdbool.h>
#include <stdint.h>
}
static void
-dump_value_31(FILE *stream)
+dump_optional_value(FILE *stream)
{
if (match_byte (0x31))
{
if (match_byte (3))
{
char *text = get_string();
- dump_value_31(stream);
+ dump_optional_value(stream);
char *identifier = get_string();
char *text_eng = get_string();
fprintf (stream, "<string c=\"%s\"", text_eng);
}
else if (match_byte (5))
{
- dump_value_31(stream);
+ dump_optional_value(stream);
char *name = get_string ();
char *label = get_string ();
fprintf (stream, "<variable name=\"%s\"", name);
char *var, *vallab;
double value;
- dump_value_31 (stream);
+ dump_optional_value (stream);
format = get_u32 ();
value = get_double ();
var = get_string ();
unsigned int format;
double value;
- dump_value_31(stream);
+ dump_optional_value(stream);
format = get_u32 ();
value = get_double ();
fprintf (stream, "<number value=\"%.*g\" format=\"%s%d.%d\"/>\n",
}
else
{
- dump_value_31(stream);
+ dump_optional_value(stream);
char *base = get_string();
int x = get_u32();
static void
dump_title(void)
{
- pos = 0x27;
printf ("<title-local>\n");
dump_value(stdout, 0);
match_byte(1);
else
match_byte_assert(0x58);
-
int n_footnotes = get_u32();
for (int i = 0; i < n_footnotes; i++)
{
printf ("<footnote index=\"%d\">\n", i);
dump_value(stdout, 0);
+ /* Custom footnote marker string. */
if (match_byte (0x31))
- {
- /* Custom footnote marker string. */
- match_byte_assert(3);
- get_string();
- match_byte_assert(0x58);
- match_u32_assert(0);
- get_string();
- }
+ dump_value(stdout, 0);
else
match_byte_assert (0x58);
- printf("(%d)\n", get_u32());
+ get_u32 ();
printf ("</footnote>\n");
}
}
int count = get_u32();
pos += 4 * count;
- printf ("<encoding>%s</encoding>\n", get_string ());
+ const char *encoding = get_string();
+ printf ("<encoding>%s</encoding>\n", encoding);
if (!match_u32(0))
match_u32_assert(UINT32_MAX);
}
else
match_u32_assert(UINT32_MAX);
+
+ int decimal = data[pos];
+ int grouping = data[pos + 1];
if (match_byte('.'))
{
if (!match_byte(',') && !match_byte('\''))
if (!match_byte('.') && !match_byte(' '))
match_byte_assert(0);
}
+ printf("<format decimal=\"%c\" grouping=\"", decimal);
+ if (grouping)
+ putchar(grouping);
+ printf("\"/>\n");
if (match_u32(5))
{
for (int i = 0; i < 5; i++)
- get_string();
+ printf("<CC%c>%s</CC%c>\n", 'A' + i, get_string(), 'A' + i);
}
else
match_u32_assert(0);
}
else if (!strcmp(argv[1], "title"))
{
+ pos = 0x27;
dump_title();
exit(0);
}
/* This might be a version number of some kind, because value 1 seems
to only appear in an SPV file that also required its own weird
- special cases in dump_value_31(). */
+ special cases in dump_optional_value(). */
version = get_u32();
pos -= 4;
if (!match_u32(1))
match_u32_assert(3);
match_byte_assert(1);
+ if (!match_byte(0))
+ match_byte_assert(1);
+
+ /* Offset 8. */
+ match_byte_assert(0);
+ match_byte_assert(0);
+ if (!match_byte(0))
+ match_byte_assert(1);
+
+ /* Offset 11. */
+ pos++;
+ match_byte_assert(0);
+ match_byte_assert(0);
+ match_byte_assert(0);
+
+ /* Offset 15. */
+ pos++;
if (!match_byte(0))
match_byte_assert(1);
match_byte_assert(0);
match_byte_assert(0);
+
+ /* Offset 19. */
+ pos++;
if (!match_byte(0))
match_byte_assert(1);
+ match_byte_assert(0);
+ match_byte_assert(0);
+
+ /* Offset 23. */
pos++;
+ if (!match_byte(0))
+ match_byte_assert(1);
match_byte_assert(0);
match_byte_assert(0);
+
+ /* Offset 27. */
+ pos++;
+ pos++;
+ match_byte_assert(0);
match_byte_assert(0);
+
+ /* Offset 31.
+
+ This is the tableId, e.g. -4154297861994971133 would be 0xdca00003.
+ We don't have enough context to validate it. */
+ pos += 4;
+
+ /* Offset 35. */
+ pos += 4;
+
dump_title ();
dump_fonts();
dump_dims ();
Always @code{text}.
@end table
@end table
+
+@node SPV Light Detail Member Format
+@subsection Light Detail Member Format
+
+A ``light'' detail member @file{.bin} consists of a number of sections
+concatenated together, terminated by a byte 01:
+
+@example
+light-member := header title fonts dims data 01
+@end example
+
+The first section is a 0x27-byte header:
+
+@example
+header := 01 00 version 01 (00 | 01) byte*21 00 00 table-id byte*4
+version := i1 | i3
+table-id := int
+@end example
+
+@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}
+would be 0xdca00003. The meaning of the other variable parts of the
+header is not known.
+
+@example
+title := value 01? /* @r{localized title} */
+ value 01? 31 /* @r{subtype} */
+ value 01? 00? 58 /* @r{locale-invariant title} */
+ (31 value | 58) /* @r{caption} */
+ int[n] footnote*[n] /* @r{footnotes} */
+footnote := value (31 value | 58) byte*4
+@end example
+
+@example
+fonts := 00 font*8
+ int[x1] byte*[x1]
+ int[x2] byte*[x2]
+ int[x3] byte*[x3]
+ int[x4] int*[x4]
+ string /* @r{encoding} */
+ (i0 | i-1) (00 | 01) 00 (00 | 01)
+ int
+ byte[decimal] byte[grouping]
+ int[x5] string*[x5] /* @r{custom currency} */
+ int[x6] byte*[x6]
+@end example
+
+In every example in the corpus, @code{x1} is 240. The meaning of the
+bytes that follow it is unknown.
+
+In every example in the corpus, @code{x2} is 18 and the bytes that
+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.
+
+Observed values of @code{x4} vary from 0 to 17. Out of 7060 examples
+in the corpus, it is nonzero only 36 times.
+
+@code{decimal} is the decimal point character. The observed values
+are @samp{.} and @samp{,}.
+
+@code{grouping} is the grouping character. The observed values are
+@samp{,}, @samp{.}, @samp{'}, @samp{ }, and zero (presumably
+indicating that digits should not be grouped).
projects / pspp / commitdiff