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587 | -- Dump the contents of a file in BIFF (Excel .xls) format.
-- The output is also an Excel file.
with Excel_Out; use Excel_Out;
with Ada.Command_Line; use Ada.Command_Line;
with Ada.Directories;
with Ada.Sequential_IO;
with Ada.Strings.Fixed; use Ada.Strings, Ada.Strings.Fixed;
with Ada.Strings.Unbounded; use Ada.Strings.Unbounded;
with Ada.Text_IO;
with Interfaces; use Interfaces;
procedure BIFF_Dump is
package BIO is new Ada.Sequential_IO (Unsigned_8);
use BIO;
f : BIO.File_Type;
code, length, x : Integer;
function in8 return Integer is
b : Unsigned_8;
begin
Read (f, b);
return Integer (b);
end in8;
function in16 return Integer is
b1, b2 : Unsigned_8;
begin
Read (f, b1);
Read (f, b2);
return Integer (b1) + Integer (b2) * 256;
end in16;
function str8 return String is
b : Unsigned_8;
begin
Read (f, b);
declare
r : String (1 .. Integer (b));
begin
for i in r'Range loop
Read (f, b);
r (i) := Character'Val (b);
end loop;
return r;
end;
end str8;
function str8len16 return String is
r : String (1 .. in16);
b : Unsigned_8;
begin
for i in r'Range loop
Read (f, b);
r (i) := Character'Val (b);
end loop;
return r;
end str8len16;
bof_2 : constant := 16#0009#; -- 5.8 p.135
bof_3 : constant := 16#0209#; -- 5.8 p.135
bof_4 : constant := 16#0409#; -- 5.8 p.135
bof_5_8 : constant := 16#0809#; -- 5.8 p.135
row_2 : constant := 16#0008#; -- 5.88 p.202
row_3 : constant := 16#0208#; -- 5.88 p.202
style : constant := 16#0293#;
xf_2 : constant := 16#0043#;
xf_3 : constant := 16#0243#;
xf_4 : constant := 16#0443#;
xf_5 : constant := 16#00E0#;
ole_2 : constant := 16#CFD0#;
pane : constant := 16#0041#;
selection : constant := 16#001D#;
window1 : constant := 16#003D#;
window2_b2 : constant := 16#003E#;
window2_b3 : constant := 16#023E#;
hideobj : constant := 16#008D#;
font_b2 : constant := 16#0031#;
font_b3 : constant := 16#0231#;
fontcolor : constant := 16#0045#;
format2 : constant := 16#001E#;
format4 : constant := 16#041E#;
blank2 : constant := 16#0001#;
index3 : constant := 16#020B#; -- 5.59
integer2 : constant := 16#0002#; -- 5.60
number2 : constant := 16#0003#; -- 5.71
number3 : constant := 16#0203#; -- 5.71
rk : constant := 16#027E#; -- 5.87 RK p.201
note : constant := 16#001C#; -- 5.70 NOTE p. 190
label2 : constant := 16#0004#;
label3 : constant := 16#0204#;
labelsst : constant := 16#00FD#;
formula2 : constant := 16#0006#; -- Formula BIFF 2, 5.50 p.176
formula4 : constant := 16#0406#; -- Formula BIFF 4
def_row_hgt_b2 : constant := 16#0025#; -- DEFAULTROWHEIGHT
colwidth : constant := 16#0024#;
defcolwidth : constant := 16#0055#;
colinfo : constant := 16#007D#;
header_x : constant := 16#0014#; -- 5.55 p.180
footer_x : constant := 16#0015#; -- 5.48 p.173
page_setup_x : constant := 16#00A1#; -- 5.73 p.192
dimension_b2 : constant := 16#0000#;
dimension_b3 : constant := 16#0200#;
writeaccess : constant := 16#005C#; -- 5.112 WRITEACCESS
saverecalc : constant := 16#005F#; -- 5.90 SAVERECALC
guts : constant := 16#0080#; -- 5.53 GUTS
sheetpr : constant := 16#0081#; -- 5.97 SHEETPR
gridset : constant := 16#0082#; -- 5.52 GRIDSET
hcenter : constant := 16#0083#; -- 5.54 HCENTER
vcenter : constant := 16#0084#; -- 5.107 VCENTER
country : constant := 16#008C#; -- 5.22 COUNTRY
subtype margin is Integer range 16#26# .. 16#29#;
b : Unsigned_8;
w : Unsigned_16;
xfs : Natural := 0;
fmt : Natural := 0;
fnt : Natural := 0;
biff_version : Natural := 0;
defaults : Boolean;
xl : Excel_Out_File;
fmt_ul : Format_type;
procedure Cell_Attributes is
begin
Put (xl, "xf=" & Integer'Image (in8 mod 16#40#));
Read (f, b);
Put (xl, "num format=" & Unsigned_8'Image (b mod 16#40#));
Put (xl, "font=" & Unsigned_8'Image (b / 16#40#));
Read (f, b);
end;
package FIO is new Ada.Text_IO.Float_IO (Float);
function Img (r : Float; digits_displayed : Natural := 0) return String is
s : String (1 .. 120);
begin
if digits_displayed > 0 then
FIO.Put (s, r, digits_displayed, 0);
return Trim (s, Both);
else
return Trim (Integer_64'Image (Integer_64 (r)), Both);
end if;
end Img;
package IIO is new Ada.Text_IO.Integer_IO (Integer);
function Hexa (i : Integer) return String is
s : String (1 .. 120);
begin
IIO.Put (s, i, 16);
return Trim (s, Both);
end Hexa;
procedure Ignore_from (from : Positive) is
begin
for i in from .. length loop
Read (f, b);
end loop;
end;
name : Unbounded_String;
begin
if Argument_Count = 0 then
name := To_Unbounded_String ("Big [BIFF3].xls");
else
name := To_Unbounded_String (Argument (1));
end if;
Create (xl, "_Dump of " & Ada.Directories.Simple_Name (To_String (name)) & "");
-- Some page layout...
Header (xl, "&LBiff_dump of...&R" & Ada.Directories.Simple_Name (To_String (name)));
Footer (xl, "&L&D");
Margins (xl, 0.7, 0.5, 1.0, 0.8);
Print_Gridlines (xl);
Page_Setup (
xl,
orientation => landscape,
scale_or_fit => fit,
fit_height_with_n_pages => 0
);
--
Write_default_column_width (xl, 18);
Write_column_width (xl, 1, 11);
Write_column_width (xl, 3, 3);
Write_column_width (xl, 4, 20);
--
Define_format (xl, Default_font (xl), general, fmt_ul, border => bottom);
--
Put_Line (xl, "Dump of the BIFF (Excel .xls) file: " & To_String (name));
New_Line (xl);
--
Use_format (xl, fmt_ul);
Put (xl, "BIFF Code");
Put (xl, "Bytes");
Put (xl, " ");
Put (xl, "BIFF Topic");
Put_Line (xl, "Comments");
Freeze_Panes_at_cursor (xl);
--
Use_format (xl, Default_format (xl));
Open (f, In_File, To_String (name));
while not End_Of_File (f) loop
code := in16;
length := in16;
Put (xl, code, base => 16);
Put (xl, length);
Put (xl, " ");
case code is
--
when bof_2 =>
Put (xl, "BOF");
Put (xl, "Beginning of File (Excel 2.1, BIFF2)");
biff_version := 2; -- some items, like font, are reused in biff 5 but not 3,4
when bof_3 =>
Put (xl, "BOF");
Put (xl, "Beginning of File (Excel 3.0, BIFF3)");
biff_version := 3;
when bof_4 =>
Put (xl, "BOF");
Put (xl, "Beginning of File (Excel 4.0, BIFF4)");
biff_version := 4;
when bof_5_8 =>
Put (xl, "BOF");
Put (xl, "Beginning of File (Excel 5-95 / 97-2003, BIFF5 / 8)");
biff_version := 5;
when 16#000A# => Put (xl, "EOF"); Put (xl, "End of File");
--
when dimension_b2 => Put (xl, "DIMENSION (BIFF2)"); -- 5.35 DIMENSION
when dimension_b3 => Put (xl, "DIMENSION (BIFF3+)"); -- 5.35 DIMENSION
when 16#000C# => Put (xl, "CALCCOUNT");
when 16#000D# => Put (xl, "CALCMODE");
when 16#000E# => Put (xl, "PRECISION");
when 16#000F# => Put (xl, "REFMODE");
when 16#0010# => Put (xl, "DELTA");
when 16#0011# => Put (xl, "ITERATION");
when 16#002A# => Put (xl, "PRINTHEADERS");
when 16#002B# => Put (xl, "PRINTGRIDLINES");
when page_setup_x => Put (xl, "PAGESETUP");
when header_x => Put (xl, "HEADER");
when footer_x => Put (xl, "FOOTER");
when margin => Put (xl, "MARGIN");
when 16#0022# => Put (xl, "DATEMODE");
when 16#0042# => Put (xl, "CODEPAGE");
when colwidth => Put (xl, "COLWIDTH (BIFF2)");
when defcolwidth => Put (xl, "DEFCOLWIDTH");
when colinfo => Put (xl, "COLINFO (BIFF3+)"); -- 5.18
when def_row_hgt_b2 => Put (xl, "DEFAULTROWHEIGHT (BIFF2)");
when 16#0225# => Put (xl, "DEFAULTROWHEIGHT (BIFF3+)");
when row_2 | row_3 =>
Put (xl, "ROW");
when format2 =>
Put (xl, "FORMAT (BIFF2-3)" & Integer'Image (fmt));
fmt := fmt + 1;
when format4 =>
Put (xl, "FORMAT (BIFF4+)" & Integer'Image (fmt)); -- 5.49
fmt := fmt + 1;
when xf_2 | -- Extended Format, BIFF2 -- 5.115
xf_3 | -- Extended Format, BIFF3
xf_4 | -- Extended Format, BIFF4
xf_5 => -- Extended Format, BIFF5+
Put (xl, "XF" & Integer'Image (xfs));
xfs := xfs + 1;
when 16#001F# | 16#0056# =>
Put (xl, "BUILTINFMTCOUNT");
when font_b2 | font_b3 =>
if fnt = 4 then
fnt := 5; -- Excel anomaly (p.171)
end if;
Put (xl, "FONT" & Integer'Image (fnt));
-- 5.45, p.171
fnt := fnt + 1;
when fontcolor => Put (xl, "FONTCOLOR");
when blank2 => Put (xl, "BLANK (BIFF2)"); -- 5.7 p.137
when 16#0201# => Put (xl, "BLANK (BIFF3+)");
when index3 => Put (xl, "INDEX (BIFF3+)");
when integer2 => Put (xl, "INTEGER (BIFF2)");
when number2 => Put (xl, "NUMBER (BIFF2)");
when number3 => Put (xl, "NUMBER (BIFF3+)");
when formula2 => Put (xl, "FORMULA (BIFF2)"); -- 5.50 p.176
when formula4 => Put (xl, "FORMULA (BIFF4)");
when rk => Put (xl, "RK (BIFF3+)");
when note => Put (xl, "NOTE (Comment)"); -- 5.70 NOTE p. 190
when label2 => Put (xl, "LABEL (BIFF2)");
when label3 => Put (xl, "LABEL (BIFF3+)");
when labelsst => Put (xl, "LABELSST (BIFF8)"); -- SST = shared string table
when 16#0019# => Put (xl, "WINDOWPROTECT");
when 16#0040# => Put (xl, "BACKUP");
when style => Put (xl, "STYLE"); -- 5.103
when pane => Put (xl, "PANE"); -- 5.75 p.197
when selection => Put (xl, "SELECTION"); -- 5.93 p.205
when window1 => Put (xl, "WINDOW1"); -- 5.109
when window2_b2 => Put (xl, "WINDOW2 (BIFF2)"); -- 5.110 p.216
when window2_b3 => Put (xl, "WINDOW2 (BIFF3+)"); -- 5.110 p.216
when hideobj => Put (xl, "HIDEOBJ"); -- 5.56
when 16#4D# => Put (xl, "PLS (Current printer blob)");
when 16#3C# => Put (xl, "CONTINUE (Continue last BIFF record)");
when writeaccess => Put (xl, "WRITEACCESS"); -- 5.112 WRITEACCESS
when saverecalc => Put (xl, "SAVERECALC"); -- 5.90 SAVERECALC
when gridset => Put (xl, "GRIDSET"); -- 5.52 GRIDSET
when guts => Put (xl, "GUTS"); -- 5.53 GUTS
when hcenter => Put (xl, "HCENTER"); -- 5.107 HCENTER
when vcenter => Put (xl, "VCENTER");
when sheetpr => Put (xl, "SHEETPR"); -- 5.97 SHEETPR
when country => Put (xl, "COUNTRY"); -- 5.22 COUNTRY
when others => Put (xl, "- ??? -");
end case;
--
-- Expand parameters
--
case code is
when bof_2 | bof_3 | bof_4 | bof_5_8 =>
Next (xl);
Put (xl, "BIFF=" & Integer'Image (in16));
Put (xl, "Type=" & Integer'Image (in16));
for i in 5 .. length loop
Read (f, b);
end loop;
when row_2 | row_3 => -- 5.88 p.202
Put (xl, "row=" & Integer'Image (in16 + 1));
Put (xl, "col1=" & Integer'Image (in16 + 1));
Put (xl, "col2+1=" & Integer'Image (in16 + 1));
w := Unsigned_16 (in16);
if (w and 16#8000#) /= 0 then
Put (xl, "default height, code=" & Hexa (Integer (w)));
else
Put (xl, "height=" & Img (Float (w and 16#7FFF#) / 20.0, 2));
end if;
Next (xl);
Put (xl, "reserved1=" & Integer'Image (in16)); -- reserved1 (2 bytes): MUST be zero, and MUST be ignored.
if biff_version = 2 then
Read (f, b);
defaults := b = 0;
if defaults then
Put (xl, "0: no default row format");
else
Put (xl, "default row format");
end if;
Put (xl, "offset to contents = " & Integer'Image (in16));
for i in 14 .. length loop
Put (xl, in8);
end loop;
else
Put (xl, "unused1=" & Integer'Image (in16)); -- unused1 (2 bytes): Undefined and MUST be ignored.
Put (xl, "flags=" & Integer'Image (in8));
-- A - iOutLevel (3 bits): An unsigned integer that specifies the outline level (1) of the row.
-- B - reserved2 (1 bit): MUST be zero, and MUST be ignored.
-- C - fCollapsed (1 bit): A bit that specifies whether the rows that are one level of outlining deeper than the current row are included in the collapsed outline state.
-- D - fDyZero (1 bit): A bit that specifies whether the row is hidden.
-- E - fUnsynced (1 bit): A bit that specifies whether the row height was manually set.
-- F - fGhostDirty (1 bit): A bit that specifies whether the row was formatted.
Put (xl, "reserved3=" & Integer'Image (in8)); -- MUST be 1, and MUST be ignored
Put (xl, "ixfe_val_etc=" & Integer'Image (in16)); -- ixfe_val (12 bits) and 4 bits
end if;
when blank2 | number2 =>
Put (xl, "row=" & Integer'Image (in16 + 1));
Put (xl, "col=" & Integer'Image (in16 + 1));
Cell_Attributes;
Ignore_from (8);
when integer2 =>
Put (xl, "row=" & Integer'Image (in16 + 1));
Put (xl, "col=" & Integer'Image (in16 + 1));
Cell_Attributes;
Put (xl, in16);
when number3 | rk =>
Put (xl, "row=" & Integer'Image (in16 + 1));
Put (xl, "col=" & Integer'Image (in16 + 1));
Put (xl, "xf=" & Integer'Image (in16));
Ignore_from (7);
when note => -- 5.70 NOTE p. 190
Put (xl, "row=" & Integer'Image (in16 + 1));
Put (xl, "col=" & Integer'Image (in16 + 1));
Put (xl, "total length=" & Integer'Image (in16 + 1));
declare
chunk : String (7 .. length);
begin
for i in chunk'Range loop
Read (f, b);
chunk (i) := Character'Val (b);
end loop;
Put (xl, chunk);
end;
when label2 => -- 5.63 LABEL p.187
Put (xl, "row=" & Integer'Image (in16 + 1));
Put (xl, "col=" & Integer'Image (in16 + 1));
Cell_Attributes;
Put (xl, str8);
when label3 => -- 5.63 LABEL p.187
Put (xl, "row=" & Integer'Image (in16 + 1));
Put (xl, "col=" & Integer'Image (in16 + 1));
Put (xl, "xf=" & Integer'Image (in16));
Put (xl, str8len16);
when labelsst => -- SST = shared string table
Put (xl, "row=" & Integer'Image (in16 + 1));
Put (xl, "col=" & Integer'Image (in16 + 1));
Ignore_from (5);
when format2 =>
Put (xl, str8);
when format4 =>
Read (f, b);
Read (f, b);
Put (xl, str8);
when font_b2 =>
Put (xl, "height=" & Img (Float (in16) / 20.0, 2));
Put (xl, "options=" & Integer'Image (in16));
if biff_version = 2 then
declare
font_name : constant String := str8;
begin
Put (xl, font_name);
for i in 6 + font_name'Length .. length loop
-- Excel 2002 puts garbage, sometimes...
Read (f, b);
end loop;
end;
else -- BIFF 5-8
for i in 5 .. length loop -- just skip the contents
Read (f, b);
end loop;
end if;
when fontcolor =>
Put (xl, "colour=" & Integer'Image (in16));
when font_b3 =>
Put (xl, "height=" & Img (Float (in16) / 20.0));
Put (xl, "options=" & Integer'Image (in16));
Put (xl, "colour=" & Integer'Image (in16));
Put (xl, str8);
when style => -- 5.103 STYLE p. 212
x := in16;
Put (xl, " xf=");
Put (xl, x mod 16#2000#, 3);
if x >= 16#8000# then
Put (xl, "; built-in style: ");
Read (f, b);
case b is
when 0 => Put (xl, "Normal");
when 3 => Put (xl, "Comma");
when 4 => Put (xl, "Currency");
when 5 => Put (xl, "Percent");
when others => Put (xl, Unsigned_8'Image (b));
end case;
Read (f, b);
Put (xl, "Level" & Unsigned_8'Image (b));
else
Put (xl, "; user: " & str8);
end if;
when xf_2 => -- 5.115 XF - Extended Format p.219
Read (f, b);
Put (xl, "Using font #" & Unsigned_8'Image (b));
Read (f, b); -- skip
Read (f, b);
Put (xl, "(Number) format #" & Unsigned_8'Image (b and 16#3F#));
Ignore_from (4); -- skip remaining contents
when xf_3 | xf_4 =>
Read (f, b);
Put (xl, "Using font #" & Unsigned_8'Image (b));
Read (f, b);
Put (xl, "(Number) format #" & Unsigned_8'Image (b));
Read (f, b); -- skip Protection
Read (f, b); -- skip Used attributes
Ignore_from (5); -- skip remaining contents
when ole_2 =>
Put_Line (xl, "This is an OLE-OLE 2 file, eventually wrapping a BIFF one");
Put_Line (xl, "Check: Microsoft Compound Document File Format, compdocfileformat.pdf");
Put_Line (xl, "Aborting dump");
Close (f);
Close (xl);
return;
when def_row_hgt_b2 =>
Next (xl);
w := Unsigned_16 (in16);
if (w and 16#8000#) /= 0 then
Put (xl, "height not changed manually, code=" & Hexa (Integer (w)));
else
Put (xl, "height=" & Img (Float (w and 16#7FFF#) / 20.0, 2));
end if;
when colwidth =>
Put (xl, "First Column: " & Integer'Image (in8 + 1));
Put (xl, "Last Column : " & Integer'Image (in8 + 1));
Put (xl, "Width: " & Img (Float (in16) / 256.0, 2));
when defcolwidth =>
Put (xl, "Width:" & Integer'Image (in16) & " zeros");
when header_x | footer_x =>
if length > 0 then
declare
head_foot : constant String := str8;
begin
Put (xl, head_foot);
for i in 2 + head_foot'Length .. length loop
-- garbage
Read (f, b);
end loop;
end;
end if;
when page_setup_x =>
Put (xl, "paper=" & Integer'Image (in16));
Put (xl, "scaling=" & Integer'Image (in16));
Put (xl, "start page=" & Integer'Image (in16));
Put (xl, "fit width=" & Integer'Image (in16));
Put (xl, "fit height=" & Integer'Image (in16));
Put (xl, "options=" & Integer'Image (in16));
Ignore_from (13); -- remaining contents (BIFF5+)
when dimension_b2 | dimension_b3 =>
Put (xl, "row_min=" & Integer'Image (in16));
Put (xl, "row_max+1=" & Integer'Image (in16));
Put (xl, "col_min=" & Integer'Image (in16));
Put (xl, "col_max+1=" & Integer'Image (in16));
Ignore_from (9); -- remaining contents (BIFF3+)
when writeaccess =>
declare
r : constant String := str8;
begin
Put (xl, "User name=" & r);
for i in r'Length + 2 .. length loop -- remaining characters (spaces)
Read (f, b);
end loop;
end;
when pane => -- 5.75 PANE p.197
Put (xl, "split_px=" & Integer'Image (in16)); -- vertical split
Put (xl, "split_py=" & Integer'Image (in16)); -- horizontal split
Put (xl, "row_1=" & Integer'Image (in16)); -- 1st visible row in bottom pane
Put (xl, "col_1=" & Integer'Image (in16)); -- 1st visible column in right pane
Put (xl, "active_pane_id=" & Integer'Image (in8)); -- identifier of pane with active cell cursor
Ignore_from (10);
when selection => -- 5.93 SELECTION p.205
Put (xl, "pane_id=" & Integer'Image (in8));
Put (xl, "active_cell_row=" & Integer'Image (in16));
Put (xl, "active_cell_col=" & Integer'Image (in16));
Put (xl, "selected_idx=" & Integer'Image (in16));
Ignore_from (8); -- cell range list - 2.5.15 p.27
when window1 =>
Put (xl, "w_x=" & Img (Float (in16) / 20.0, 2));
Put (xl, "w_y=" & Img (Float (in16) / 20.0, 2));
Put (xl, "w_w=" & Img (Float (in16) / 20.0, 2));
Put (xl, "w_h=" & Img (Float (in16) / 20.0, 2));
Put (xl, "w_hidden=" & Integer'Image (in8));
Ignore_from (10); -- Excel v.2002 puts an extra byte there, some other versions not...
when window2_b2 =>
Put (xl, "form_results=" & Integer'Image (in8));
Put (xl, "grid_lines=" & Integer'Image (in8));
Put (xl, "sheet_head=" & Integer'Image (in8));
Put (xl, "frozen_panes=" & Integer'Image (in8));
Put (xl, "zero_as_empty=" & Integer'Image (in8));
Put (xl, "first_row=" & Integer'Image (in16));
Put (xl, "first_column=" & Integer'Image (in16));
Put (xl, "use_auto_grid_colour=" & Integer'Image (in8));
for i in 1 .. 4 loop -- RGB
Read (f, b);
end loop;
when window2_b3 =>
Put (xl, "option_flags=" & Integer'Image (in16));
Put (xl, "first_row=" & Integer'Image (in16));
Put (xl, "first_column=" & Integer'Image (in16));
Ignore_from (7);
when others =>
-- if length > 0 then
-- Put(xl, "skipping contents");
-- end if;
for i in 1 .. length loop -- just skip the contents, show some
if i <= 10 then
Put (xl, in8);
else
Read (f, b);
end if;
end loop;
end case;
New_Line (xl);
end loop;
Close (f);
Close (xl);
exception
when others =>
if Is_Open (f) then
Close (f);
end if;
if Is_Open (xl) then
Close (xl);
end if;
raise;
end;
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