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171 | -----------------------------------------------------------------------
-- convert -- Convert a wiki format into another
-- Copyright (C) 2022 Stephane Carrez
-- Written by Stephane Carrez (Stephane.Carrez@gmail.com)
--
-- Licensed under the Apache License, Version 2.0 (the "License");
-- you may not use this file except in compliance with the License.
-- You may obtain a copy of the License at
--
-- http://www.apache.org/licenses/LICENSE-2.0
--
-- Unless required by applicable law or agreed to in writing, software
-- distributed under the License is distributed on an "AS IS" BASIS,
-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-- See the License for the specific language governing permissions and
-- limitations under the License.
-----------------------------------------------------------------------
with Ada.Text_IO;
with Ada.Wide_Wide_Text_IO;
with Ada.IO_Exceptions;
with Ada.Strings.Unbounded;
with Ada.Strings.UTF_Encoding.Wide_Wide_Strings;
with GNAT.Command_Line;
with Util.Files;
with Util.Strings.Transforms;
with Wiki.Strings;
with Wiki.Filters.Html;
with Wiki.Filters.TOC;
with Wiki.Streams.Builders;
with Wiki.Render.Wiki;
with Wiki.Documents;
with Wiki.Parsers;
procedure Convert is
use GNAT.Command_Line;
use Ada.Strings.Unbounded;
use Ada.Strings.UTF_Encoding;
procedure Usage;
procedure Parse (Content : in String);
procedure Print (Item : in Wiki.Strings.WString);
function To_Syntax (Name : in String) return Wiki.Wiki_Syntax;
Html_Filter : aliased Wiki.Filters.Html.Html_Filter_Type;
TOC : aliased Wiki.Filters.TOC.TOC_Filter;
Count : Natural := 0;
Src_Syntax : Wiki.Wiki_Syntax := Wiki.SYNTAX_MARKDOWN;
Dst_Syntax : Wiki.Wiki_Syntax := Wiki.SYNTAX_MARKDOWN;
procedure Usage is
begin
Ada.Text_IO.Put_Line ("Convert a wiki file from one format to another");
Ada.Text_IO.Put_Line ("Usage: convert [-s format] [-d format] file...");
Ada.Text_IO.Put_Line (" -s format Define the source file format");
Ada.Text_IO.Put_Line (" -d format Define the destination file format");
end Usage;
procedure Print (Item : in Wiki.Strings.WString) is
begin
Ada.Wide_Wide_Text_IO.Put (Item);
end Print;
procedure Parse (Content : in String) is
Doc : Wiki.Documents.Document;
Engine : Wiki.Parsers.Parser;
Stream : aliased Wiki.Streams.Builders.Output_Builder_Stream;
Renderer : aliased Wiki.Render.Wiki.Wiki_Renderer;
begin
Engine.Add_Filter (TOC'Unchecked_Access);
Engine.Add_Filter (Html_Filter'Unchecked_Access);
Engine.Set_Syntax (Src_Syntax);
Engine.Parse (Wide_Wide_Strings.Decode (Content), Doc);
Renderer.Set_Output_Stream (Stream'Unchecked_Access, Dst_Syntax);
Renderer.Render (Doc);
Stream.Iterate (Print'Access);
Ada.Wide_Wide_Text_IO.New_Line;
end Parse;
function To_Syntax (Name : in String) return Wiki.Wiki_Syntax is
begin
if Name = "markdown" then
return Wiki.SYNTAX_MARKDOWN;
end if;
if Name = "dotclear" then
return Wiki.SYNTAX_DOTCLEAR;
end if;
if Name = "creole" then
return Wiki.SYNTAX_CREOLE;
end if;
if Name = "textile" then
return Wiki.SYNTAX_TEXTILE;
end if;
if Name = "mediawiki" then
return Wiki.SYNTAX_MEDIA_WIKI;
end if;
if Name = "html" then
return Wiki.SYNTAX_HTML;
end if;
return Wiki.SYNTAX_MARKDOWN;
end To_Syntax;
begin
loop
case Getopt ("s: d:") is
when 's' =>
declare
Value : constant String := Util.Strings.Transforms.To_Lower_Case (Parameter);
begin
Src_Syntax := To_Syntax (Value);
exception
when Constraint_Error =>
Ada.Text_IO.Put_Line ("Invalid source format " & Value);
end;
when 'd' =>
declare
Value : constant String := Util.Strings.Transforms.To_Lower_Case (Parameter);
begin
Dst_Syntax := To_Syntax (Value);
exception
when Constraint_Error =>
Ada.Text_IO.Put_Line ("Invalid source format " & Value);
end;
when others =>
exit;
end case;
end loop;
loop
declare
Name : constant String := GNAT.Command_Line.Get_Argument;
Data : Unbounded_String;
begin
if Name = "" then
if Count = 0 then
Usage;
end if;
return;
end if;
Count := Count + 1;
Util.Files.Read_File (Name, Data);
Parse (To_String (Data));
exception
when Ada.IO_Exceptions.Name_Error =>
Ada.Text_IO.Put_Line ("Cannot read file '" & Name & "'");
end;
end loop;
exception
when Invalid_Switch =>
Ada.Text_IO.Put_Line ("Invalid option.");
Usage;
end Convert;
|