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|
with Ada.Text_IO,
Ada.Strings.Fixed,
Ada.Strings.Unbounded,
Ada.Characters.Handling,
Ada.Command_Line;
procedure Rtf2Form is
--
-- Convert an RTF file (as in the Rationale) to a roughly formatted .MSS
-- file. This tool is part of ARM_Form, the Ada Reference Manual formatter.
--
-- ---------------------------------------
-- Copyright 2006, 2011 AXE Consultants.
-- P.O. Box 1512, Madison WI 53701
-- E-Mail: randy@rrsoftware.com
--
-- ARM_Form is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License version 3
-- as published by the Free Software Foundation.
--
-- AXE CONSULTANTS MAKES THIS TOOL AND SOURCE CODE AVAILABLE ON AN "AS IS"
-- BASIS AND MAKES NO WARRANTY, EXPRESS OR IMPLIED, AS TO THE ACCURACY,
-- CAPABILITY, EFFICIENCY, MERCHANTABILITY, OR FUNCTIONING OF THIS TOOL.
-- IN NO EVENT WILL AXE CONSULTANTS BE LIABLE FOR ANY GENERAL,
-- CONSEQUENTIAL, INDIRECT, INCIDENTAL, EXEMPLARY, OR SPECIAL DAMAGES,
-- EVEN IF AXE CONSULTANTS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
-- DAMAGES.
--
-- A copy of the GNU General Public License is available in the file
-- gpl-3-0.txt in the standard distribution of the ARM_Form tool.
-- Otherwise, see <http://www.gnu.org/licenses/>.
--
-- If the GPLv3 license is not satisfactory for your needs, a commercial
-- use license is available for this tool. Contact Randy at AXE Consultants
-- for more information.
--
-- ---------------------------------------
--
-- Edit History:
--
-- 1/19/06 - RLB - Created program.
-- 1/20/06 - RLB - Changed to generate tab markers for tabs, as John
-- wants to preserve tabs where possible.
-- 10/18/11 - RLB - Changed to GPLv3 license.
use Ada.Strings.Unbounded;
-- Declarations stolen from Trash-Finder:
type Line_Count is range 0 .. 1_000_000; -- 1 million lines ought to be enough.
type Line_Type;
type Line_Access is access Line_Type;
type Line_Type is record
Number : Line_Count;
Text : Ada.Strings.Unbounded.Unbounded_String;
Next : Line_Access;
end record;
procedure Free is new Ada.Unchecked_Deallocation (Line_Type, Line_Access);
-- Free an individual line.
procedure Free_All (List : in out Line_Access) is
-- Free the entire list.
Temp : Line_Access;
begin
while List /= null loop
Temp := List;
List := List.Next;
Free (Temp);
end loop;
end Free_All;
procedure Load_File (File_Name : in String;
Data : in out Line_Access) is
-- Read the file, breaking at each paragraph end (to keep the lines from
-- getting too long). The original line breaks are irrelevant.
File : Ada.Text_IO.File_Type;
Last, Working : Line_Access := null;
Count : Line_Count := 0;
Buffer : String (1..1000); -- Since line endings aren't significant, the
-- length doesn't matter much, other than we
-- might miss a "\par" that way.
BLength : Natural;
Break_Loc, Start_Loc : Natural;
begin
Ada.Text_IO.Open (File, Ada.Text_IO.In_File, File_Name);
loop
Ada.Text_IO.Get_Line (File, Buffer, BLength);
Count := Count + 1;
--Ada.Text_IO.Put_Line("Line" & Line_Count'Image(Count) & ": read=" & Buffer(1..BLength));
Start_Loc := 1;
Break_Loc := Start_Loc;
while Break_Loc <= BLength-4 loop
-- Look for "\par " or "\par\", only (in particular, not "\pard").
exit when Buffer(Break_Loc..Break_Loc+3) = "\par" and then
(Buffer(Break_Loc+4) = ' ' or else
Buffer(Break_Loc+4) = '\');
-- Found it.
Break_Loc := Break_Loc + 1;
end loop;
if Break_Loc > BLength-4 then
Break_Loc := BLength+1;
end if;
if Last = null then
Working := new Line_Type;
Working.Number := Count;
Working.Next := null;
Working.Text := To_Unbounded_String (Buffer(1..Break_Loc-1));
Data := Working;
Last := Working;
--Ada.Text_IO.Put_Line("Line" & Line_Count'Image(Count) & ": initial=" & Buffer(1..Break_Loc-1));
elsif Length(Last.Text) > 30000 and then Break_Loc > BLength then
-- Break at the original place, as this is too long.
-- This is fine so long as the length of Buffer < 2768/2 (1386)
Last.Text := Last.Text & To_Unbounded_String (Buffer(1..Break_Loc-1));
--Ada.Text_IO.Put_Line("Line" & Line_Count'Image(Count) & ": append, then break=" & Buffer(1..Break_Loc-1));
Break_Loc := BLength - 3; -- Force a new line here. (This will make
-- Start_Loc small enough to enter the
-- loop below and create an empty line.)
else
Last.Text := Last.Text & To_Unbounded_String (Buffer(1..Break_Loc-1));
--Ada.Text_IO.Put_Line("Line" & Line_Count'Image(Count) & ": append=" & Buffer(1..Break_Loc-1));
end if;
Start_Loc := Break_Loc + 4; -- Skip \par.
if Start_Loc <= BLength and then Buffer(Start_Loc) = ' ' then
Start_Loc := Start_Loc + 1; -- Skip trailling space, too.
end if;
--Ada.Text_IO.Put_Line("Start_Loc = " & Natural'Image(Start_Loc) & " Blength=" & Natural'Image(BLength));
while Start_Loc <= BLength+1 loop -- +1 so we handle end of line "\par" properly.
-- Create a new line:
Working := new Line_Type;
Working.Number := Count;
Working.Next := null;
Last.Next := Working;
Last := Working;
Break_Loc := Start_Loc;
while Break_Loc <= BLength-4 loop
-- Look for "\par " or "\par\", only (in particular, not "\pard").
exit when Buffer(Break_Loc..Break_Loc+3) = "\par" and then
(Buffer(Break_Loc+4) = ' ' or else
Buffer(Break_Loc+4) = '\');
-- Found it.
Break_Loc := Break_Loc + 1;
end loop;
if Break_Loc > BLength-4 then
Break_Loc := BLength+1;
end if;
Working.Text := To_Unbounded_String (Buffer(Start_Loc..Break_Loc-1));
--Ada.Text_IO.Put_Line("Line" & Line_Count'Image(Count) & ": startp=" & Buffer(Start_Loc..Break_Loc-1));
Start_Loc := Break_Loc + 4; -- Skip \par.
if Start_Loc <= BLength and then Buffer(Start_Loc) = ' ' then
Start_Loc := Start_Loc + 1; -- Skip trailling space, too.
end if;
end loop;
-- Done with line when we get here.
end loop;
exception
when Ada.Text_IO.End_Error => -- Done reading.
Ada.Text_IO.Close (File);
end Load_File;
-- Stack of RTF command information:
type RTF_Group_Kind is (Unknown, Empty,
Bold, Italic, Tab, Line_Break,
Exam, ExamCom, Key); -- Type of RTF command.
type Brace_Info is record
Kind : RTF_Group_Kind;
end record;
Brace_Info_Stack : array (1..1000) of Brace_Info;
Current_Brace : Natural := 0;
type Paragraph_Styles is (Unknown, None, Normal, Example, Description);
Current_Paragraph_Style : Paragraph_Styles := Unknown;
procedure Process_and_Write_File (File_Name : in String;
Data : in out Line_Access) is
File : Ada.Text_IO.File_Type;
Cursor : Line_Access := Data;
Chars_on_Line : Natural; -- Number of characters output on the current line.
-- Data:
Deepest_Brace_Nesting : Natural := 0;
Paragraphs : Natural := 0;
Escaped_Chars : Natural := 0;
EM_Dashes : Natural := 0;
EN_Dashes : Natural := 0;
Intraparagraph_Line_Breaks : Natural := 0;
Intraparagraph_Tabs : Natural := 0;
Brace_Kinds_Found : array (RTF_Group_Kind) of Natural := (others => 0);
Styles_Found : array (Paragraph_Styles) of Natural := (others => 0);
procedure Close_Old_Style is
-- Close the current paragraph style in preparation for a new one.
begin
case Current_Paragraph_Style is
when Unknown => null;
when None => null;
when Normal =>
null; --Ada.Text_IO.Put_Line (File, "@end[Intro]"); -- ** Temp (no style needed for these).
when Example =>
Ada.Text_IO.Put_Line (File, "@end[Example]");
when Description =>
Ada.Text_IO.Put_Line (File, "@end[Description]");
end case;
end Close_Old_Style;
begin
Ada.Text_IO.Create (File, Ada.Text_IO.Out_File, File_Name);
-- Header stuff (ignored, really).
Ada.Text_IO.Put_Line (File, "@Part(xxx, Root=""rat.msm"")");
Ada.Text_IO.Put_Line (File, "");
Ada.Text_IO.Put_Line (File, "@comment($Source: e:\\cvsroot/ARM/Progs/rtf2form.ada,v $)");
Ada.Text_IO.Put_Line (File, "@comment($Revision: 1.4 $ $Date: 2012/05/19 01:00:26 $)");
Ada.Text_IO.Put_Line (File, "");
while Cursor /= null loop
declare
Our_Line : constant String := To_String(Cursor.Text);
Working : Natural := Our_Line'First;
Last_Output : Natural := Working - 1;
procedure Clean_Buffer_and_Close_Old_Style is
-- Close the current paragraph style in preparation for a new one.
begin
Ada.Text_IO.Put_Line (File, Our_Line(Last_Output+1..Working-1));
--Ada.Text_IO.Put_Line("Close style on Line" & Line_Count'Image(Cursor.Number) & ": output=" & Our_Line(Last_Output+1..Working-1));
Chars_on_Line := 0; -- Start over.
Last_Output := Working-1;
Close_Old_Style;
end Clean_Buffer_and_Close_Old_Style;
function Possible_Style (Head, Tail : Natural) return Boolean is
-- Check that the stuff between Head and Tail
-- can *only* be a style, with nothing extra.
begin
--Ada.Text_IO.Put_Line ("Possible style=" & Our_Line(Head..Tail));
for I in Head .. Tail loop
if Our_Line(I) = '{' then
--Ada.Text_IO.Put_Line (" NO - open group");
return False; -- Starts some group, not part of a style.
elsif Our_Line(I) = '{' then
--Ada.Text_IO.Put_Line (" NO - close group");
return False; -- Ends some group, not part of a style.
elsif Our_Line(I) = ' ' then
if I = Tail then
--Ada.Text_IO.Put_Line (" OK");
return True;
elsif Our_Line(I+1) = '\' then
null; -- OK.
else -- We have to have another command, not text, immediately following.
--Ada.Text_IO.Put_Line (" NO - plain text found");
return False;
end if;
elsif Our_Line(I) in 'a'..'z' or else
Our_Line(I) in '0'..'9' or else
Our_Line(I) = '-' or else
Our_Line(I) = '\' then
null; -- OK.
else
--Ada.Text_IO.Put_Line (" NO - odd character at" & Natural'Image(I));
return False; -- Don't know what this is.
end if;
end loop;
--Ada.Text_IO.Put_Line (" OK");
return True; -- OK if we get here.
end Possible_Style;
procedure Start_Style (Style_Code_Loc, End_of_Style : Natural) is
-- Generate an appropriate style operation.
-- We've already checked the basic legality of the style.
-- Set Working and Last_Output as needed.
begin
-- We can assume that the style code has enough room.
if Our_Line(Style_Code_Loc..Style_Code_Loc+4) = "\s15\" then
-- Normal style (called "TP Text para")
--Ada.Text_IO.Put_Line (" Normal style");
if Current_Paragraph_Style /= Normal then
Clean_Buffer_and_Close_Old_Style;
--Ada.Text_IO.Put_Line (File, "@begin[Intro]"); -- ** Temp.
Current_Paragraph_Style := Normal;
-- else no change needed.
end if;
Styles_Found(Normal) := Styles_Found(Normal) + 1;
-- We just discard the entire style mess.
Last_Output := End_of_Style;
Working := Last_Output + 1;
elsif Our_Line(Style_Code_Loc..Style_Code_Loc+4) = "\s25\" then
-- Example style (called "PP Program para")
--Ada.Text_IO.Put_Line (" Example style");
if Current_Paragraph_Style /= Example then
Clean_Buffer_and_Close_Old_Style;
Ada.Text_IO.Put_Line (File, "@begin[Example]");
Current_Paragraph_Style := Example;
-- else no change needed.
end if;
Styles_Found(Example) := Styles_Found(Example) + 1;
-- We just discard the entire style mess.
Last_Output := End_of_Style;
Working := Last_Output + 1;
elsif Our_Line(Style_Code_Loc..Style_Code_Loc+4) = "\s32\" then
-- Description style (called "BP Bullet", but often
-- not used for bullets)
--Ada.Text_IO.Put_Line (" Description style");
if Current_Paragraph_Style /= Description then
Clean_Buffer_and_Close_Old_Style;
Ada.Text_IO.Put_Line (File, "@begin[Description]");
Current_Paragraph_Style := Description;
-- else no change needed.
end if;
Styles_Found(Description) := Styles_Found(Description) + 1;
-- We just discard the entire style mess.
Last_Output := End_of_Style;
Working := Last_Output + 1;
else -- Unknown style.
--Ada.Text_IO.Put_Line (" Unknown style: code = " & Our_Line(Style_Code_Loc..Style_Code_Loc+4));
if Current_Paragraph_Style /= Unknown then
Clean_Buffer_and_Close_Old_Style;
Current_Paragraph_Style := Unknown;
-- else no change needed.
end if;
Styles_Found(Unknown) := Styles_Found(Unknown) + 1;
-- We leave the style mess for analysis.
Working := Working + 1;
end if;
end Start_Style;
begin
Paragraphs := Paragraphs + 1;
Chars_on_Line := 0;
while Working <= Our_Line'Last loop
if Our_Line(Working) = '{' then
-- Start an RTF section.
-- Output everything to here:
Ada.Text_IO.Put (File, Our_Line(Last_Output+1..Working-1));
--Ada.Text_IO.Put_Line("Open Brace on Line" & Line_Count'Image(Cursor.Number) & ": output=" & Our_Line(Last_Output+1..Working-1));
Chars_on_Line := Chars_on_Line + ((Working-1) - (Last_Output+1) + 1);
-- Stack this opening:
Current_Brace := Current_Brace + 1;
if Current_Brace > Deepest_Brace_Nesting then
Deepest_Brace_Nesting := Current_Brace;
end if;
if Working+1 > Our_Line'Last or else
Our_Line(Working+1) /= '\' then
-- No command here, so it is not interesting (ever)
-- and we might as well remove it.
Brace_Info_Stack(Current_Brace).Kind := Empty;
Last_Output := Working; -- Skip the brace.
--Ada.Text_IO.Put_Line("Empty Open Brace on Line" & Line_Count'Image(Cursor.Number));
elsif Working+3 <= Our_Line'Last and then
Our_Line(Working..Working+3) = "{\b " then
Brace_Info_Stack(Current_Brace).Kind := Bold;
Ada.Text_IO.Put (File, "@b[");
Chars_on_Line := Chars_on_Line + 3;
Last_Output := Working+3;
--Ada.Text_IO.Put_Line("Bold Open Brace on Line" & Line_Count'Image(Cursor.Number));
elsif Working+3 <= Our_Line'Last and then
Our_Line(Working..Working+3) = "{\i " then
Brace_Info_Stack(Current_Brace).Kind := Italic;
Ada.Text_IO.Put (File, "@i[");
Chars_on_Line := Chars_on_Line + 3;
Last_Output := Working+3;
--Ada.Text_IO.Put_Line("Italic Open Brace on Line" & Line_Count'Image(Cursor.Number));
elsif Working+6 <= Our_Line'Last and then
Our_Line(Working..Working+6) = "{\line " then
Brace_Info_Stack(Current_Brace).Kind := Line_Break;
Ada.Text_IO.New_Line (File);
Chars_on_Line := 0; -- Start over.
Last_Output := Working+6;
--Ada.Text_IO.Put_Line("Line_Break Open Brace on Line" & Line_Count'Image(Cursor.Number));
elsif Working+5 <= Our_Line'Last and then
Our_Line(Working..Working+5) = "{\tab " then
Brace_Info_Stack(Current_Brace).Kind := Tab;
Ada.Text_IO.Put (File, "@\");
Chars_on_Line := Chars_on_Line + 2;
Last_Output := Working+5;
--Ada.Text_IO.Put_Line("Tab Open Brace on Line" & Line_Count'Image(Cursor.Number));
elsif Working+14 <= Our_Line'Last and then
Our_Line(Working..Working+14) = "{\cs16\f1\fs20 " then
-- \cs16 = "PC Program char" style. Could look for
-- that early on to find the number. Same with
-- "\f1" (Arial). But they might be constant, and
-- that would be wasted work.
Brace_Info_Stack(Current_Brace).Kind := Exam;
Ada.Text_IO.Put (File, "@exam[");
Chars_on_Line := Chars_on_Line + 6;
Last_Output := Working+14;
--Ada.Text_IO.Put_Line("Exam Open Brace on Line" & Line_Count'Image(Cursor.Number));
elsif Working+8 <= Our_Line'Last and then
Our_Line(Working..Working+8) = "{\cs20\b " then
-- \cs20 = "RW Reserved word" style. Could look for
-- that early on to find the number.
Brace_Info_Stack(Current_Brace).Kind := Key;
Ada.Text_IO.Put (File, "@key[");
Chars_on_Line := Chars_on_Line + 5;
Last_Output := Working+8;
--Ada.Text_IO.Put_Line("Key (in example) Open Brace on Line" & Line_Count'Image(Cursor.Number));
elsif Working+16 <= Our_Line'Last and then
Our_Line(Working..Working+16) = "{\cs20\b\f1\fs20 " then
-- \cs20 = "RW Reserved word" style. \f1 = Arial
-- font.
Brace_Info_Stack(Current_Brace).Kind := Key;
Ada.Text_IO.Put (File, "@key[");
Chars_on_Line := Chars_on_Line + 5;
Last_Output := Working+16;
--Ada.Text_IO.Put_Line("Key (in text) Open Brace on Line" & Line_Count'Image(Cursor.Number));
elsif Working+8 <= Our_Line'Last and then
Our_Line(Working..Working+8) = "{\cs24\i " then
-- \cs24 = "CT Comment" style.
Brace_Info_Stack(Current_Brace).Kind := ExamCom;
Ada.Text_IO.Put (File, "@examcom[");
Chars_on_Line := Chars_on_Line + 9;
Last_Output := Working+8;
--Ada.Text_IO.Put_Line("ExamCom Open Brace on Line" & Line_Count'Image(Cursor.Number));
else
Brace_Info_Stack(Current_Brace).Kind := Unknown;
Ada.Text_IO.Put (File, '{');
Chars_on_Line := Chars_on_Line + 1;
Last_Output := Working;
--Ada.Text_IO.Put_Line("Unknown Open Brace on Line" & Line_Count'Image(Cursor.Number));
end if;
Brace_Kinds_Found(Brace_Info_Stack(Current_Brace).Kind) :=
Brace_Kinds_Found(Brace_Info_Stack(Current_Brace).Kind) + 1;
Working := Last_Output + 1;
elsif Our_Line(Working) = '}' then
-- End an RTF section.
-- Output everything to here:
Ada.Text_IO.Put (File, Our_Line(Last_Output+1..Working-1));
--Ada.Text_IO.Put_Line("Close Brace on Line" & Line_Count'Image(Cursor.Number) & ": output=" & Our_Line(Last_Output+1..Working-1));
Chars_on_Line := Chars_on_Line + ((Working-1) - (Last_Output+1) + 1);
Last_Output := Working; -- We're including this character.
case Brace_Info_Stack(Current_Brace).Kind is
when Unknown =>
Ada.Text_IO.Put (File, '}');
--Ada.Text_IO.Put_Line("Unknown Close Brace on Line" & Line_Count'Image(Cursor.Number));
Chars_on_Line := Chars_on_Line + 1;
when Empty =>
-- Just remove this one.
--Ada.Text_IO.Put_Line("Empty Close Brace on Line" & Line_Count'Image(Cursor.Number));
null;
when Bold =>
Ada.Text_IO.Put (File, ']');
--Ada.Text_IO.Put_Line("Bold Close Brace on Line" & Line_Count'Image(Cursor.Number));
Chars_on_Line := Chars_on_Line + 1;
when Italic =>
Ada.Text_IO.Put (File, ']');
--Ada.Text_IO.Put_Line("Italic Close Brace on Line" & Line_Count'Image(Cursor.Number));
Chars_on_Line := Chars_on_Line + 1;
when Line_Break =>
null;
--Ada.Text_IO.Put_Line("Link_Break Close Brace on Line" & Line_Count'Image(Cursor.Number));
when Tab =>
null;
--Ada.Text_IO.Put_Line("Tab Close Brace on Line" & Line_Count'Image(Cursor.Number));
when Exam =>
Ada.Text_IO.Put (File, ']');
--Ada.Text_IO.Put_Line("Exam Close Brace on Line" & Line_Count'Image(Cursor.Number));
Chars_on_Line := Chars_on_Line + 1;
when ExamCom =>
Ada.Text_IO.Put (File, ']');
--Ada.Text_IO.Put_Line("ExamCom Close Brace on Line" & Line_Count'Image(Cursor.Number));
Chars_on_Line := Chars_on_Line + 1;
when Key =>
Ada.Text_IO.Put (File, ']');
--Ada.Text_IO.Put_Line("Key Close Brace on Line" & Line_Count'Image(Cursor.Number));
Chars_on_Line := Chars_on_Line + 1;
end case;
Current_Brace := Current_Brace - 1;
Working := Working + 1;
elsif Our_Line(Working) = ' ' then
-- Possible break here.
if Chars_on_Line + (Working - (Last_Output+1) + 1) > 65 then
-- We need a break here; write it.
Ada.Text_IO.Put_Line (File, Our_Line(Last_Output+1..Working));
--Ada.Text_IO.Put_Line("Soft line break on Line" & Line_Count'Image(Cursor.Number) & ": output=" & Our_Line(Last_Output+1..Working));
Chars_on_Line := 0; -- Start over.
Last_Output := Working;
Working := Working + 1;
else -- Don't need a break.
Working := Working + 1;
end if;
elsif Our_Line(Working) = '\' then
-- RTF control word or symbol; see whether it is
-- interesting.
if Working+5 <= Our_Line'Last and then
Our_Line(Working..Working+5) = "\line " then
-- Line break in a paragraph (without an open
-- brace). Output a New_line.
Ada.Text_IO.Put_Line (File, Our_Line(Last_Output+1..Working-1));
--Ada.Text_IO.Put_Line("Line break on Line" & Line_Count'Image(Cursor.Number) & ": output=" & Our_Line(Last_Output+1..Working));
Intraparagraph_Line_Breaks := Intraparagraph_Line_Breaks + 1;
Chars_on_Line := 0; -- Start over.
Last_Output := Working+5;
Working := Last_Output + 1;
elsif Working+4 <= Our_Line'Last and then
Our_Line(Working..Working+4) = "\tab " then
-- Tab inside of a paragraph. Output the previous text and a tab command.
-- (Note: We don't define any tabstops here; that
-- will need to be done by hand as needed).
Ada.Text_IO.Put (File, Our_Line(Last_Output+1..Working-1));
--Ada.Text_IO.Put_Line("Tab on Line" & Line_Count'Image(Cursor.Number) & ": output=" & Our_Line(Last_Output+1..Working));
Chars_on_Line := Chars_on_Line + ((Working-1) - (Last_Output+1) + 1);
Ada.Text_IO.Put (File, "@\");
Chars_on_Line := Chars_on_Line + 2;
Intraparagraph_Tabs := Intraparagraph_Tabs + 1;
Last_Output := Working+4;
Working := Last_Output + 1;
elsif Working+1 <= Our_Line'Last and then
(Our_Line(Working+1) = '\' or else
Our_Line(Working+1) = '{' or else
Our_Line(Working+1) = '}') then
-- Escaped character. Output the previous text and
-- the literal character. (We have to do this to
-- prevent the escaped character from being
-- acted on as if it is a control or group marker).
Ada.Text_IO.Put (File, Our_Line(Last_Output+1..Working-1));
--Ada.Text_IO.Put_Line("Escaped char on Line" & Line_Count'Image(Cursor.Number) & ": output=" & Our_Line(Last_Output+1..Working));
Chars_on_Line := Chars_on_Line + ((Working-1) - (Last_Output+1) + 1);
Escaped_Chars := Escaped_Chars + 1;
Last_Output := Working;
Working := Working + 2;
-- We leave the literal character in the output buffer for later writing.
elsif Working+7 <= Our_Line'Last and then
Our_Line(Working..Working+7) = "\endash " then
-- Line break in a paragraph. Output a New_line.
Ada.Text_IO.Put (File, Our_Line(Last_Output+1..Working-1));
--Ada.Text_IO.Put_Line("Endash on Line" & Line_Count'Image(Cursor.Number) & ": output=" & Our_Line(Last_Output+1..Working));
Chars_on_Line := Chars_on_Line + ((Working-1) - (Last_Output+1) + 1);
Ada.Text_IO.Put (File, "@en");
Chars_on_Line := Chars_on_Line + 3;
EN_Dashes := EN_Dashes + 1;
Last_Output := Working+7;
Working := Last_Output + 1;
elsif Working+7 <= Our_Line'Last and then
Our_Line(Working..Working+7) = "\emdash " then
-- Line break in a paragraph. Output a New_line.
Ada.Text_IO.Put (File, Our_Line(Last_Output+1..Working-1));
--Ada.Text_IO.Put_Line("Emdash on Line" & Line_Count'Image(Cursor.Number) & ": output=" & Our_Line(Last_Output+1..Working));
Chars_on_Line := Chars_on_Line + ((Working-1) - (Last_Output+1) + 1);
Ada.Text_IO.Put (File, "@em");
Chars_on_Line := Chars_on_Line + 3;
EM_Dashes := EM_Dashes + 1;
Last_Output := Working+7;
Working := Last_Output + 1;
elsif Working+5 <= Our_Line'Last and then
Our_Line(Working..Working+5) = "\pard\" then
-- Starts a (full) paragraph style.
--Ada.Text_IO.Put_Line("Paragraph style on Line" & Line_Count'Image(Cursor.Number));
declare
End_of_Style : Natural :=
Ada.Strings.Fixed.Index (Our_Line(Working..Our_Line'Last),
"\langfenp1033 ") + 13;
-- For some reason, all of the styles end with this.
Style_Code : Natural :=
Ada.Strings.Fixed.Index (Our_Line(Working..Our_Line'Last),
"\s");
-- The style code is generally first.
begin
--Ada.Text_IO.Put_Line("Style_Code=" & Natural'Image(Style_Code) &
-- "; End_of_Style=" & Natural'Image(End_of_Style));
if Style_Code = 0 or else End_of_Style = 13 or else
Style_Code > End_of_Style or else
(not Possible_Style (Working, End_of_Style)) then
-- No style code, no end of style, the style
-- code comes after the end of the style, or
-- the style has problems. (In which case, we are
-- probably taking too much as the style).
-- This is unknown. Do nothing and just output the character.
Working := Working + 1;
else
Start_Style (Style_Code, End_of_Style);
-- This sets Working and Last_Output appropriately.
end if;
end;
elsif Working+5 <= Our_Line'Last and then
Our_Line(Working..Working+5) = "\pard " then
-- Starts a (short) paragraph style.
--Ada.Text_IO.Put_Line("Short paragraph style on Line" & Line_Count'Image(Cursor.Number));
declare
End_of_Style : Natural :=
Ada.Strings.Fixed.Index (Our_Line(Working..Our_Line'Last),
"\lin0\itap0 ");
-- For some reason, all of the styles end with this.
Style_Code : Natural :=
Ada.Strings.Fixed.Index (Our_Line(Working..Our_Line'Last),
"\s");
-- The style code is generally first.
begin
if End_of_Style = 0 then
End_of_Style :=
Ada.Strings.Fixed.Index (Our_Line(Working..Our_Line'Last),
"\lin480\itap0 ");
if End_of_Style = 0 then
End_of_Style :=
Ada.Strings.Fixed.Index (Our_Line(Working..Our_Line'Last),
"\lin360\itap0 ");
if End_of_Style /= 0 then
End_of_Style := End_of_Style + 13;
end if;
else
End_of_Style := End_of_Style + 13;
end if;
else
End_of_Style := End_of_Style + 11;
end if;
if Style_Code = 0 or else End_of_Style = 0 or else
Style_Code > End_of_Style or else
(not Possible_Style (Working, End_of_Style)) then
-- No style code, no end of style, the style
-- code comes after the end of the style, or
-- the style has problems. (In which case, we are
-- probably taking too much as the style).
-- This is unknown. Do nothing and just output the character.
Working := Working + 1;
else
Start_Style (Style_Code, End_of_Style);
-- This sets Working and Last_Output appropriately.
end if;
end;
else -- Don't recognize it, just output it (later).
Working := Working + 1;
end if;
else -- Just output it (later).
Working := Working + 1;
end if;
end loop;
-- Output any remaining text (it can't need to be broken):
Ada.Text_IO.Put (File, Our_Line(Last_Output+1..Our_Line'Last));
--Ada.Text_IO.Put_Line("Remaining text on Line" & Line_Count'Image(Cursor.Number) & ": output=" & Our_Line(Last_Output+1..Our_Line'Last));
end;
Ada.Text_IO.New_Line (File, 2); -- Double space.
Cursor := Cursor.Next;
end loop;
Close_Old_Style; -- Close the last style.
Ada.Text_IO.Close (File);
Free_All (Data);
-- Display statistics:
Ada.Text_IO.Put_Line ("Conversion statistics:");
Ada.Text_IO.Put_Line (" Total paragraphs:" & Natural'Image(Paragraphs));
Ada.Text_IO.Put_Line (" Deepest nesting:" & Natural'Image(Deepest_Brace_Nesting));
for I in RTF_Group_Kind loop
Ada.Text_IO.Put_Line (" Kind " & RTF_Group_Kind'Image(I) &
":" & Natural'Image(Brace_Kinds_Found(I)));
end loop;
Ada.Text_IO.Put_Line (" Escaped characters found:" & Natural'Image(Escaped_Chars));
Ada.Text_IO.Put_Line (" EM Dashes found:" & Natural'Image(EM_Dashes));
Ada.Text_IO.Put_Line (" EN Dashes found:" & Natural'Image(EN_Dashes));
Ada.Text_IO.Put_Line (" Line breaks inside of paragraphs:" & Natural'Image(Intraparagraph_Line_Breaks));
Ada.Text_IO.Put_Line (" Tabs inside of paragraphs:" & Natural'Image(Intraparagraph_Tabs));
for I in Paragraph_Styles loop
Ada.Text_IO.Put_Line (" Style " & Paragraph_Styles'Image(I) &
":" & Natural'Image(Styles_Found(I)));
end loop;
end Process_and_Write_File;
File_Contents : Line_Access;
begin
Ada.Text_IO.Put_Line ("Convert " &
Ada.Command_Line.Argument(1) & ".rtf to " &
Ada.Command_Line.Argument(1) & ".mss");
Load_File (Ada.Command_Line.Argument(1) & ".rtf", File_Contents);
Process_and_Write_File (Ada.Command_Line.Argument(1) & ".mss", File_Contents);
Ada.Text_IO.Put_Line ("Conversion completed");
end Rtf2Form;
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