talkatu/talkatu

Add TalkatuHtmlParser that abstracts out the traversal of HTML documents to make it easier to output other formats

Add an iterative html parser which will be used to create pangomarkup and gtktext later.

Testing Done:
Added some unittests and ran them in valgrind. Also created and checked the docs.

Reviewed at https://reviews.imfreedom.org/r/89/
/*
* talkatu
* Copyright (C) 2017-2019 Gary Kramlich <grim@reaperworld.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#if !defined(TALKATU_GLOBAL_HEADER_INSIDE) && !defined(TALKATU_COMPILATION)
#error "only <talkatu.h> may be included directly"
#endif
#ifndef TALKATU_TAG_H
#define TALKATU_TAG_H
#include <glib.h>
#include <glib-object.h>
#include <gtk/gtk.h>
#define TALKATU_TAG_PREFIX "talkatu:"
#define TALKATU_TAG_PREFIX_LEN (sizeof(TALKATU_TAG_PREFIX)-1)
#define TALKATU_TAG_BOLD TALKATU_TAG_PREFIX "bold"
#define TALKATU_TAG_ITALIC TALKATU_TAG_PREFIX "italic"
#define TALKATU_TAG_UNDERLINE TALKATU_TAG_PREFIX "underline"
#define TALKATU_TAG_STRIKETHROUGH TALKATU_TAG_PREFIX "strikethrough"
#define TALKATU_TAG_SUBSCRIPT TALKATU_TAG_PREFIX "subscript"
#define TALKATU_TAG_SUPERSCRIPT TALKATU_TAG_PREFIX "superscript"
#define TALKATU_TAG_PRE TALKATU_TAG_PREFIX "preformatted"
#define TALKATU_TAG_CODE TALKATU_TAG_PREFIX "code"
#define TALKATU_TAG_SEARCH TALKATU_TAG_PREFIX "search"
#define TALKATU_TAG_H1 TALKATU_TAG_PREFIX "header1"
#define TALKATU_TAG_H2 TALKATU_TAG_PREFIX "header2"
#define TALKATU_TAG_H3 TALKATU_TAG_PREFIX "header3"
#define TALKATU_TAG_H4 TALKATU_TAG_PREFIX "header4"
#define TALKATU_TAG_H5 TALKATU_TAG_PREFIX "header5"
#define TALKATU_TAG_H6 TALKATU_TAG_PREFIX "header6"
#define TALKATU_TAG_ANCHOR TALKATU_TAG_PREFIX "anchor"
#define TALKATU_TAG_DL TALKATU_TAG_PREFIX "description-list"
#define TALKATU_TAG_DT TALKATU_TAG_PREFIX "description-term"
#define TALKATU_TAG_DD TALKATU_TAG_PREFIX "description-definition"
#define TALKATU_TAG_MESSAGE TALKATU_TAG_PREFIX "message"
#define TALKATU_TAG_TIMESTAMP TALKATU_TAG_PREFIX "timestamp"
#define TALKATU_TAG_AUTHOR TALKATU_TAG_PREFIX "author"
#define TALKATU_TAG_CONTENTS TALKATU_TAG_PREFIX "contents"
#define TALKATU_TAG_FORMATTING_START "-start"
#define TALKATU_TAG_FORMATTING_END "-end"
typedef enum _TalkatuTagDisplay /*< prefix=TALKATU_TAG_DISPLAY,underscore_name=TALKATU_TAG_DISPLAY >*/
{
TALKATU_TAG_DISPLAY_INLINE = 0,
TALKATU_TAG_DISPLAY_BLOCK = 1,
} TalkatuTagDisplay;
G_BEGIN_DECLS
#define TALKATU_TYPE_TAG (talkatu_tag_get_type())
G_DECLARE_FINAL_TYPE(TalkatuTag, talkatu_tag, TALKATU, TAG, GtkTextTag)
GtkTextTag *talkatu_tag_new(const gchar *name, const gchar *first_property, ...) G_GNUC_NULL_TERMINATED;
void talkatu_tag_set_display(TalkatuTag *tag, TalkatuTagDisplay display);
TalkatuTagDisplay talkatu_tag_get_display(TalkatuTag *tag);
const gchar *talkatu_tag_name_for_action_name(const gchar *action_name);
const gchar *talkatu_tag_name_to_html(const gchar *tag_name);
G_END_DECLS
#endif /* TALKATU_TAG_H */