X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=spv-file-format.texi;h=89749de0da945e4d7097d77abef39356e441a718;hb=8f03a15bc9fce38e9651dcb3ce82ba7815ccc9b5;hp=3251e3e38b066884f14d7b7f116007108a52891e;hpb=245cfa40ee078a212b37afef1cdd052087e4f1b4;p=pspp

diff --git a/spv-file-format.texi b/spv-file-format.texi
index 3251e3e38b..89749de0da 100644
--- a/spv-file-format.texi
+++ b/spv-file-format.texi
@@ -361,7 +361,7 @@ 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
+light-member := header title styles dimensions data 01
 @end example
 
 The first section is a 0x27-byte header:
@@ -391,17 +391,17 @@ 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]
+styles := 00 font*8
+          int[x1] byte*[x1]
+          int[x2] byte*[x2]
+          int[x3] byte*[x3]
+          int[x4] int*[x4]
+          string[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
@@ -417,9 +417,75 @@ 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{encoding} is a character encoding, usually a Windows code page
+such as @code{en_US.windows-1252} or @code{it_IT.windows-1252}.  The
+encoding string is itself encoded in US-ASCII.  The rest of the
+character strings in the file use this encoding.
+
 @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).
+
+@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.
+
+@example
+font := byte[index] 31 string[typeface]
+        00 00
+        (10 | 20 | 40 | 50 | 70 | 80)[f1]
+        41
+        (i0 | i1 | i2)[f2]
+        00
+        (i0 | i2 | i64173)[f3]
+        (i0 | i1 | i2 | i3)[f4]
+        string[fgcolor] string[bgcolor]
+        i0 i0 00
+        (v3: int[f5] int[f6] int[f7] int[f8])
+@end example
+
+Each @code{font}, in order, represents the font style for a different
+element: title, caption, footnote, row labels, column labels, corner
+labels, data, and layers.
+
+@code{index} is the 1-based index of the @code{font}, i.e. 1 for the
+first @code{font}, through 8 for the final @code{font}.
+
+@code{typeface} is the string name of the font.  In the corpus, this
+is @code{SansSerif} in over 99% of instances and @code{Times New
+Roman} in the rest.
+
+@code{fgcolor} and @code{bgcolor} are the foreground color and
+background color, respectively.  In the corpus, these are always
+@code{#000000} and @code{#ffffff}, respectively.
+
+The meaning of the remaining data is unknown.  It seems likely to
+include font sizes, horizontal and vertical alignment, attributes such
+as bold or italic, and margins.  @code{f1} is @code{40} most of the
+time.  @code{f2} is @code{i1} most of the time for the title and
+@code{i0} most of the time for other fonts.
+
+The table below lists the values observed in the corpus.  When a cell
+contains a single value, then 99+% of the corpus contains that value.
+When a cell contains a pair of values, then the first value is seen in
+about two-third of the corpus and the second value in about the
+remaining one-third.  In fonts that include multiple pairs, values are
+correlated, that is, for font 3, f5 = 24, f6 = 24, f7 = 2 appears
+about two-thirds of the time, as does the combination of f4 = 0, f6 =
+10 for font 7.
+
+@example
+font  f1  f2     f3   f4     f5    f6  f7  f8
+
+   1  40   1      0    0      8 10/11   1   8
+   2  40   0      2    1      8 10/11   1   1
+   3  40   0      2    1  24/11 24/ 8 2/3   4
+   4  40   0      2    3      8 10/11   1   1
+   5  40   0      0    1      8 10/11   1   4
+   6  40   0      2    1      8 10/11   1   4
+   7  40   0  64173  0/1      8 10/11   1   1
+   8  40   0      2    3      8 10/11   1   4
+@end example