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215 | -----------------------------------------------------------------------
-- render -- Wiki rendering example
-- Copyright (C) 2015, 2016, 2020, 2021, 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.IO_Exceptions;
with Ada.Strings.Unbounded;
with Ada.Directories;
with Ada.Command_Line;
with Wiki.Documents;
with Wiki.Parsers;
with Wiki.Strings;
with Wiki.Filters.TOC;
with Wiki.Filters.Html;
with Wiki.Filters.Autolink;
with Wiki.Plugins.Templates;
with Wiki.Render.Html;
with Wiki.Render.Text;
with Wiki.Streams.Text_IO;
with Wiki.Streams.Html.Text_IO;
with Wiki.Nodes.Dump;
procedure Render is
use Ada.Strings.Unbounded;
procedure Usage;
procedure Render_Html (Doc : in out Wiki.Documents.Document;
Style : in Unbounded_String);
procedure Render_Text (Doc : in out Wiki.Documents.Document);
procedure Dump (Doc : in Wiki.Documents.Document);
procedure Render_File (Name : in String);
Arg_Count : constant Natural := Ada.Command_Line.Argument_Count;
Count : Natural := 0;
Html_Mode : Boolean := True;
Html_Toc : Boolean := False;
Syntax : Wiki.Wiki_Syntax := Wiki.SYNTAX_MARKDOWN;
Style : Unbounded_String;
Indent : Natural := 3;
Dump_Tree : Boolean := False;
procedure Usage is
begin
Ada.Text_IO.Put_Line ("Render a wiki text file into HTML (default) or text");
Ada.Text_IO.Put_Line ("Usage: render [options] {wiki-file}");
Ada.Text_IO.Put_Line (" -0, -1, -2 Controls the indentation level");
Ada.Text_IO.Put_Line (" -t Render to text only");
Ada.Text_IO.Put_Line (" -m Render a Markdown wiki content");
Ada.Text_IO.Put_Line (" -M Render a Mediawiki wiki content");
Ada.Text_IO.Put_Line (" -T Render a Textile wiki content");
Ada.Text_IO.Put_Line (" -H Render a HTML wiki content");
Ada.Text_IO.Put_Line (" -d Render a Dotclear wiki content");
Ada.Text_IO.Put_Line (" -g Render a Google wiki content");
Ada.Text_IO.Put_Line (" -c Render a Creole wiki content");
Ada.Text_IO.Put_Line (" -s style Use the CSS style file");
Ada.Text_IO.Put_Line (" -dump Dump the document tree");
Ada.Command_Line.Set_Exit_Status (Ada.Command_Line.Failure);
end Usage;
procedure Render_Html (Doc : in out Wiki.Documents.Document;
Style : in Unbounded_String) is
Output : aliased Wiki.Streams.Html.Text_IO.Html_Output_Stream;
Renderer : aliased Wiki.Render.Html.Html_Renderer;
begin
Output.Set_Indent_Level (Indent);
if Length (Style) > 0 then
Output.Start_Element ("html");
Output.Start_Element ("head");
Output.Start_Element ("link");
Output.Write_Attribute ("type", "text/css");
Output.Write_Attribute ("rel", "stylesheet");
Output.Write_Attribute ("href", To_String (Style));
Output.End_Element ("link");
Output.End_Element ("head");
Output.Start_Element ("body");
end if;
Renderer.Set_Output_Stream (Output'Unchecked_Access);
Renderer.Set_Render_TOC (Html_Toc);
Renderer.Render (Doc);
if Length (Style) > 0 then
Output.End_Element ("body");
Output.End_Element ("html");
end if;
end Render_Html;
procedure Render_Text (Doc : in out Wiki.Documents.Document) is
Output : aliased Wiki.Streams.Text_IO.File_Output_Stream;
Renderer : aliased Wiki.Render.Text.Text_Renderer;
begin
Renderer.Set_Output_Stream (Output'Unchecked_Access);
Renderer.Render (Doc);
end Render_Text;
procedure Dump (Doc : in Wiki.Documents.Document) is
procedure Write (Indent : in Positive;
Line : in Wiki.Strings.WString);
procedure Write (Indent : in Positive;
Line : in Wiki.Strings.WString) is
S : constant String := Wiki.Strings.To_String (Line);
begin
Ada.Text_IO.Set_Col (Ada.Text_IO.Count (Indent));
Ada.Text_IO.Put_Line (S);
end Write;
procedure Dump is
new Wiki.Nodes.Dump (Write);
begin
Doc.Iterate (Dump'Access);
end Dump;
procedure Render_File (Name : in String) is
Input : aliased Wiki.Streams.Text_IO.File_Input_Stream;
Filter : aliased Wiki.Filters.Html.Html_Filter_Type;
Autolink : aliased Wiki.Filters.Autolink.Autolink_Filter;
Template : aliased Wiki.Plugins.Templates.File_Template_Plugin;
TOC : aliased Wiki.Filters.TOC.TOC_Filter;
Doc : Wiki.Documents.Document;
Engine : Wiki.Parsers.Parser;
begin
Count := Count + 1;
Template.Set_Template_Path (Ada.Directories.Containing_Directory (Name));
-- Open the file and parse it (assume UTF-8).
if Name /= "--" then
Input.Open (Name, "WCEM=8");
end if;
Engine.Set_Plugin_Factory (Template'Unchecked_Access);
Engine.Add_Filter (TOC'Unchecked_Access);
Engine.Add_Filter (Autolink'Unchecked_Access);
Engine.Add_Filter (Filter'Unchecked_Access);
Engine.Set_Syntax (Syntax);
Engine.Parse (Input'Unchecked_Access, Doc);
-- Render the document in text or HTML.
if Dump_Tree then
Dump (Doc);
elsif Html_Mode then
Render_Html (Doc, Style);
else
Render_Text (Doc);
end if;
exception
when Ada.IO_Exceptions.Name_Error =>
Ada.Text_IO.Put_Line ("Cannot read file '" & Name & "'");
Ada.Command_Line.Set_Exit_Status (Ada.Command_Line.Failure);
end Render_File;
begin
for I in 1 .. Arg_Count loop
declare
Param : constant String := Ada.Command_Line.Argument (I);
begin
if Param = "-m" then
Syntax := Wiki.SYNTAX_MARKDOWN;
elsif Param = "-M" then
Syntax := Wiki.SYNTAX_MEDIA_WIKI;
elsif Param = "-c" then
Syntax := Wiki.SYNTAX_CREOLE;
elsif Param = "-d" then
Syntax := Wiki.SYNTAX_DOTCLEAR;
elsif Param = "-H" then
Syntax := Wiki.SYNTAX_HTML;
elsif Param = "-T" then
Syntax := Wiki.SYNTAX_TEXTILE;
elsif Param = "-g" then
Syntax := Wiki.SYNTAX_GOOGLE;
elsif Param = "-t" then
Html_Mode := False;
elsif Param = "-z" then
Html_Toc := True;
elsif Param = "-s" then
Style := To_Unbounded_String (Param);
elsif Param = "--" then
Render_File (Param);
elsif Param = "-0" then
Indent := 0;
elsif Param = "-1" then
Indent := 1;
elsif Param = "-2" then
Indent := 2;
elsif Param = "-dump" then
Dump_Tree := True;
elsif Param (Param'First) = '-' then
Usage;
return;
else
Render_File (Param);
end if;
end;
end loop;
if Count = 0 then
Usage;
end if;
end Render;
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