Adding upstream version 44.2.upstream/44.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

7 files changed, 1284 insertions, 0 deletions

diff --git a/plugins/modelines/gedit-modeline-plugin.c b/plugins/modelines/gedit-modeline-plugin.c
new file mode 100644
index 0000000..376d996
--- /dev/null
+++ b/plugins/modelines/gedit-modeline-plugin.c
@@ -0,0 +1,225 @@
+/*
+ * gedit-modeline-plugin.c
+ * Emacs, Kate and Vim-style modelines support for gedit.
+ *
+ * Copyright (C) 2005-2010 - Steve Frécinaux <code@istique.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <glib/gi18n-lib.h>
+#include <gmodule.h>
+#include "gedit-modeline-plugin.h"
+#include "modeline-parser.h"
+
+#include <gedit/gedit-debug.h>
+#include <gedit/gedit-view-activatable.h>
+#include <gedit/gedit-view.h>
+
+struct _GeditModelinePluginPrivate
+{
+	GeditView *view;
+
+	gulong document_loaded_handler_id;
+	gulong document_saved_handler_id;
+};
+
+enum
+{
+	PROP_0,
+	PROP_VIEW
+};
+
+static void	gedit_view_activatable_iface_init (GeditViewActivatableInterface *iface);
+
+G_DEFINE_DYNAMIC_TYPE_EXTENDED (GeditModelinePlugin,
+				gedit_modeline_plugin,
+				PEAS_TYPE_EXTENSION_BASE,
+				0,
+				G_IMPLEMENT_INTERFACE_DYNAMIC (GEDIT_TYPE_VIEW_ACTIVATABLE,
+							       gedit_view_activatable_iface_init)
+				G_ADD_PRIVATE_DYNAMIC (GeditModelinePlugin))
+
+static void
+gedit_modeline_plugin_constructed (GObject *object)
+{
+	gchar *data_dir;
+
+	data_dir = peas_extension_base_get_data_dir (PEAS_EXTENSION_BASE (object));
+
+	modeline_parser_init (data_dir);
+
+	g_free (data_dir);
+
+	G_OBJECT_CLASS (gedit_modeline_plugin_parent_class)->constructed (object);
+}
+
+static void
+gedit_modeline_plugin_init (GeditModelinePlugin *plugin)
+{
+	gedit_debug_message (DEBUG_PLUGINS, "GeditModelinePlugin initializing");
+
+	plugin->priv = gedit_modeline_plugin_get_instance_private (plugin);
+
+}
+
+static void
+gedit_modeline_plugin_dispose (GObject *object)
+{
+	GeditModelinePlugin *plugin = GEDIT_MODELINE_PLUGIN (object);
+
+	gedit_debug_message (DEBUG_PLUGINS, "GeditModelinePlugin disposing");
+
+	g_clear_object (&plugin->priv->view);
+
+	G_OBJECT_CLASS (gedit_modeline_plugin_parent_class)->dispose (object);
+}
+
+static void
+gedit_modeline_plugin_finalize (GObject *object)
+{
+	gedit_debug_message (DEBUG_PLUGINS, "GeditModelinePlugin finalizing");
+
+	modeline_parser_shutdown ();
+
+	G_OBJECT_CLASS (gedit_modeline_plugin_parent_class)->finalize (object);
+}
+
+static void
+gedit_modeline_plugin_set_property (GObject      *object,
+                                    guint         prop_id,
+                                    const GValue *value,
+                                    GParamSpec   *pspec)
+{
+	GeditModelinePlugin *plugin = GEDIT_MODELINE_PLUGIN (object);
+
+	switch (prop_id)
+	{
+		case PROP_VIEW:
+			plugin->priv->view = GEDIT_VIEW (g_value_dup_object (value));
+			break;
+
+		default:
+			G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+			break;
+	}
+}
+
+static void
+gedit_modeline_plugin_get_property (GObject    *object,
+                                    guint       prop_id,
+                                    GValue     *value,
+                                    GParamSpec *pspec)
+{
+	GeditModelinePlugin *plugin = GEDIT_MODELINE_PLUGIN (object);
+
+	switch (prop_id)
+	{
+		case PROP_VIEW:
+			g_value_set_object (value, plugin->priv->view);
+			break;
+
+		default:
+			G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+			break;
+	}
+}
+
+static void
+on_document_loaded_or_saved (GeditDocument *document,
+			     GtkSourceView *view)
+{
+	modeline_parser_apply_modeline (view);
+}
+
+static void
+gedit_modeline_plugin_activate (GeditViewActivatable *activatable)
+{
+	GeditModelinePlugin *plugin;
+	GtkTextBuffer *doc;
+
+	gedit_debug (DEBUG_PLUGINS);
+
+	plugin = GEDIT_MODELINE_PLUGIN (activatable);
+
+	modeline_parser_apply_modeline (GTK_SOURCE_VIEW (plugin->priv->view));
+
+	doc = gtk_text_view_get_buffer (GTK_TEXT_VIEW (plugin->priv->view));
+
+	plugin->priv->document_loaded_handler_id =
+		g_signal_connect (doc, "loaded",
+				  G_CALLBACK (on_document_loaded_or_saved),
+				  plugin->priv->view);
+	plugin->priv->document_saved_handler_id =
+		g_signal_connect (doc, "saved",
+				  G_CALLBACK (on_document_loaded_or_saved),
+				  plugin->priv->view);
+}
+
+static void
+gedit_modeline_plugin_deactivate (GeditViewActivatable *activatable)
+{
+	GeditModelinePlugin *plugin;
+	GtkTextBuffer *doc;
+
+	gedit_debug (DEBUG_PLUGINS);
+
+	plugin = GEDIT_MODELINE_PLUGIN (activatable);
+
+	doc = gtk_text_view_get_buffer (GTK_TEXT_VIEW (plugin->priv->view));
+
+	g_signal_handler_disconnect (doc, plugin->priv->document_loaded_handler_id);
+	g_signal_handler_disconnect (doc, plugin->priv->document_saved_handler_id);
+}
+
+static void
+gedit_modeline_plugin_class_init (GeditModelinePluginClass *klass)
+{
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+	object_class->constructed = gedit_modeline_plugin_constructed;
+	object_class->dispose = gedit_modeline_plugin_dispose;
+	object_class->finalize = gedit_modeline_plugin_finalize;
+	object_class->set_property = gedit_modeline_plugin_set_property;
+	object_class->get_property = gedit_modeline_plugin_get_property;
+
+	g_object_class_override_property (object_class, PROP_VIEW, "view");
+}
+
+static void
+gedit_view_activatable_iface_init (GeditViewActivatableInterface *iface)
+{
+	iface->activate = gedit_modeline_plugin_activate;
+	iface->deactivate = gedit_modeline_plugin_deactivate;
+}
+
+static void
+gedit_modeline_plugin_class_finalize (GeditModelinePluginClass *klass)
+{
+}
+
+
+G_MODULE_EXPORT void
+peas_register_types (PeasObjectModule *module)
+{
+	gedit_modeline_plugin_register_type (G_TYPE_MODULE (module));
+
+	peas_object_module_register_extension_type (module,
+						    GEDIT_TYPE_VIEW_ACTIVATABLE,
+						    GEDIT_TYPE_MODELINE_PLUGIN);
+}
+
+/* ex:set ts=8 noet: */
diff --git a/plugins/modelines/gedit-modeline-plugin.h b/plugins/modelines/gedit-modeline-plugin.h
new file mode 100644
index 0000000..d3557e4
--- /dev/null
+++ b/plugins/modelines/gedit-modeline-plugin.h
@@ -0,0 +1,60 @@
+/*
+ * gedit-modeline-plugin.h
+ * Emacs, Kate and Vim-style modelines support for gedit.
+ *
+ * Copyright (C) 2005-2007 - Steve Frécinaux <code@istique.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GEDIT_MODELINE_PLUGIN_H
+#define GEDIT_MODELINE_PLUGIN_H
+
+#include <glib.h>
+#include <glib-object.h>
+#include <libpeas/peas-extension-base.h>
+#include <libpeas/peas-object-module.h>
+
+G_BEGIN_DECLS
+
+#define GEDIT_TYPE_MODELINE_PLUGIN		(gedit_modeline_plugin_get_type ())
+#define GEDIT_MODELINE_PLUGIN(o)		(G_TYPE_CHECK_INSTANCE_CAST ((o), GEDIT_TYPE_MODELINE_PLUGIN, GeditModelinePlugin))
+#define GEDIT_MODELINE_PLUGIN_CLASS(k)		(G_TYPE_CHECK_CLASS_CAST((k), GEDIT_TYPE_MODELINE_PLUGIN, GeditModelinePluginClass))
+#define GEDIT_IS_MODELINE_PLUGIN(o)		(G_TYPE_CHECK_INSTANCE_TYPE ((o), GEDIT_TYPE_MODELINE_PLUGIN))
+#define GEDIT_IS_MODELINE_PLUGIN_CLASS(k)	(G_TYPE_CHECK_CLASS_TYPE ((k), GEDIT_TYPE_MODELINE_PLUGIN))
+#define GEDIT_MODELINE_PLUGIN_GET_CLASS(o)	(G_TYPE_INSTANCE_GET_CLASS ((o), GEDIT_TYPE_MODELINE_PLUGIN, GeditModelinePluginClass))
+
+typedef struct _GeditModelinePlugin		GeditModelinePlugin;
+typedef struct _GeditModelinePluginPrivate	GeditModelinePluginPrivate;
+typedef struct _GeditModelinePluginClass	GeditModelinePluginClass;
+
+struct _GeditModelinePlugin {
+	PeasExtensionBase parent;
+
+	/*< private >*/
+	GeditModelinePluginPrivate *priv;
+};
+
+struct _GeditModelinePluginClass {
+	PeasExtensionBaseClass parent_class;
+};
+
+GType	gedit_modeline_plugin_get_type		(void) G_GNUC_CONST;
+
+G_MODULE_EXPORT void peas_register_types (PeasObjectModule *module);
+
+G_END_DECLS
+
+#endif /* GEDIT_MODELINE_PLUGIN_H */
+/* ex:set ts=8 noet: */
diff --git a/plugins/modelines/language-mappings b/plugins/modelines/language-mappings
new file mode 100644
index 0000000..47d0029
--- /dev/null
+++ b/plugins/modelines/language-mappings
@@ -0,0 +1,14 @@
+[vim]
+cs=c-sharp
+docbk=docbook
+javascript=js
+lhaskell=haskell-literate
+spec=rpmspec
+tex=latex
+xhtml=html
+
+[emacs]
+c++=cpp
+
+[kate]
+
diff --git a/plugins/modelines/meson.build b/plugins/modelines/meson.build
new file mode 100644
index 0000000..3ff0e84
--- /dev/null
+++ b/plugins/modelines/meson.build
@@ -0,0 +1,42 @@
+libmodelines_sources = files(
+  'gedit-modeline-plugin.c',
+  'modeline-parser.c',
+)
+
+libmodelines_deps = [
+  libgedit_dep,
+]
+
+libmodelines_sha = shared_module(
+  'modelines',
+  sources: libmodelines_sources,
+  include_directories: root_include_dir,
+  dependencies: libmodelines_deps,
+  install: true,
+  install_dir: join_paths(
+    pkglibdir,
+    'plugins',
+  ),
+  name_suffix: module_suffix,
+)
+
+custom_target(
+  'modelines.plugin',
+  input: 'modelines.plugin.desktop.in',
+  output: 'modelines.plugin',
+  command: msgfmt_plugin_cmd,
+  install: true,
+  install_dir: join_paths(
+    pkglibdir,
+    'plugins',
+  )
+)
+
+install_data(
+  'language-mappings',
+  install_dir: join_paths(
+    pkgdatadir,
+    'plugins',
+    'modelines',
+  )
+)
diff --git a/plugins/modelines/modeline-parser.c b/plugins/modelines/modeline-parser.c
new file mode 100644
index 0000000..989e111
--- /dev/null
+++ b/plugins/modelines/modeline-parser.c
@@ -0,0 +1,899 @@
+/*
+ * modeline-parser.c
+ * Emacs, Kate and Vim-style modelines support for gedit.
+ *
+ * Copyright (C) 2005-2007 - Steve Frécinaux <code@istique.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <gtksourceview/gtksource.h>
+#include <gedit/gedit-debug.h>
+#include <gedit/gedit-document.h>
+#include <gedit/gedit-settings.h>
+#include <gedit/gedit-utils.h>
+#include "modeline-parser.h"
+
+#define MODELINES_LANGUAGE_MAPPINGS_FILE "language-mappings"
+
+/* base dir to lookup configuration files */
+static gchar *modelines_data_dir;
+
+/* Mappings: language name -> Gedit language ID */
+static GHashTable *vim_languages = NULL;
+static GHashTable *emacs_languages = NULL;
+static GHashTable *kate_languages = NULL;
+
+typedef enum
+{
+	MODELINE_SET_NONE = 0,
+	MODELINE_SET_TAB_WIDTH = 1 << 0,
+	MODELINE_SET_INDENT_WIDTH = 1 << 1,
+	MODELINE_SET_WRAP_MODE = 1 << 2,
+	MODELINE_SET_SHOW_RIGHT_MARGIN = 1 << 3,
+	MODELINE_SET_RIGHT_MARGIN_POSITION = 1 << 4,
+	MODELINE_SET_LANGUAGE = 1 << 5,
+	MODELINE_SET_INSERT_SPACES = 1 << 6
+} ModelineSet;
+
+typedef struct _ModelineOptions
+{
+	gchar		*language_id;
+
+	/* these options are similar to the GtkSourceView properties of the
+	 * same names.
+	 */
+	gboolean	insert_spaces;
+	guint		tab_width;
+	guint		indent_width;
+	GtkWrapMode	wrap_mode;
+	gboolean	display_right_margin;
+	guint		right_margin_position;
+
+	ModelineSet	set;
+} ModelineOptions;
+
+#define MODELINE_OPTIONS_DATA_KEY "ModelineOptionsDataKey"
+
+static gboolean
+has_option (ModelineOptions *options,
+            ModelineSet      set)
+{
+	return options->set & set;
+}
+
+void
+modeline_parser_init (const gchar *data_dir)
+{
+	if (modelines_data_dir == NULL)
+	{
+		modelines_data_dir = g_strdup (data_dir);
+	}
+}
+
+void
+modeline_parser_shutdown ()
+{
+	if (vim_languages != NULL)
+		g_hash_table_unref (vim_languages);
+
+	if (emacs_languages != NULL)
+		g_hash_table_unref (emacs_languages);
+
+	if (kate_languages != NULL)
+		g_hash_table_unref (kate_languages);
+
+	vim_languages = NULL;
+	emacs_languages = NULL;
+	kate_languages = NULL;
+
+	g_free (modelines_data_dir);
+	modelines_data_dir = NULL;
+}
+
+static GHashTable *
+load_language_mappings_group (GKeyFile *key_file, const gchar *group)
+{
+	GHashTable *table;
+	gchar **keys;
+	gsize length = 0;
+	int i;
+
+	table = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
+
+	keys = g_key_file_get_keys (key_file, group, &length, NULL);
+
+	gedit_debug_message (DEBUG_PLUGINS,
+			     "%" G_GSIZE_FORMAT " mappings in group %s",
+			     length, group);
+
+	for (i = 0; i < length; i++)
+	{
+		/* steal the name string */
+		gchar *name = keys[i];
+		gchar *id = g_key_file_get_string (key_file, group, name, NULL);
+		g_hash_table_insert (table, name, id);
+	}
+	g_free (keys);
+
+	return table;
+}
+
+/* lazy loading of language mappings */
+static void
+load_language_mappings (void)
+{
+	gchar *fname;
+	GKeyFile *mappings;
+	GError *error = NULL;
+
+	fname = g_build_filename (modelines_data_dir,
+				  MODELINES_LANGUAGE_MAPPINGS_FILE,
+				  NULL);
+
+	mappings = g_key_file_new ();
+
+	if (g_key_file_load_from_file (mappings, fname, 0, &error))
+	{
+		gedit_debug_message (DEBUG_PLUGINS,
+				     "Loaded language mappings from %s",
+				     fname);
+
+		vim_languages = load_language_mappings_group (mappings, "vim");
+		emacs_languages = load_language_mappings_group (mappings, "emacs");
+		kate_languages = load_language_mappings_group (mappings, "kate");
+	}
+	else
+	{
+		gedit_debug_message (DEBUG_PLUGINS,
+				     "Failed to loaded language mappings from %s: %s",
+				     fname, error->message);
+
+		g_error_free (error);
+	}
+
+	g_key_file_free (mappings);
+	g_free (fname);
+}
+
+static gchar *
+get_language_id (const gchar *language_name, GHashTable *mapping)
+{
+	gchar *name;
+	gchar *language_id = NULL;
+
+	name = g_ascii_strdown (language_name, -1);
+
+	if (mapping != NULL)
+	{
+		language_id = g_hash_table_lookup (mapping, name);
+
+		if (language_id != NULL)
+		{
+			g_free (name);
+			return g_strdup (language_id);
+		}
+	}
+
+	/* by default assume that the gtksourcevuew id is the same */
+	return name;
+}
+
+static gchar *
+get_language_id_vim (const gchar *language_name)
+{
+	if (vim_languages == NULL)
+		load_language_mappings ();
+
+	return get_language_id (language_name, vim_languages);
+}
+
+static gchar *
+get_language_id_emacs (const gchar *language_name)
+{
+	if (emacs_languages == NULL)
+		load_language_mappings ();
+
+	return get_language_id (language_name, emacs_languages);
+}
+
+static gchar *
+get_language_id_kate (const gchar *language_name)
+{
+	if (kate_languages == NULL)
+		load_language_mappings ();
+
+	return get_language_id (language_name, kate_languages);
+}
+
+static gboolean
+skip_whitespaces (gchar **s)
+{
+	while (**s != '\0' && g_ascii_isspace (**s))
+		(*s)++;
+	return **s != '\0';
+}
+
+/* Parse vi(m) modelines.
+ * Vi(m) modelines looks like this:
+ *   - first form:   [text]{white}{vi:|vim:|ex:}[white]{options}
+ *   - second form:  [text]{white}{vi:|vim:|ex:}[white]se[t] {options}:[text]
+ * They can happen on the three first or last lines.
+ */
+static gchar *
+parse_vim_modeline (gchar           *s,
+		    ModelineOptions *options)
+{
+	gboolean in_set = FALSE;
+	gboolean neg;
+	guint intval;
+	GString *key, *value;
+
+	key = g_string_sized_new (8);
+	value = g_string_sized_new (8);
+
+	while (*s != '\0' && !(in_set && *s == ':'))
+	{
+		while (*s != '\0' && (*s == ':' || g_ascii_isspace (*s)))
+			s++;
+
+		if (*s == '\0')
+			break;
+
+		if (strncmp (s, "set ", 4) == 0 ||
+		    strncmp (s, "se ", 3) == 0)
+		{
+			s = strchr(s, ' ') + 1;
+			in_set = TRUE;
+		}
+
+		neg = FALSE;
+		if (strncmp (s, "no", 2) == 0)
+		{
+			neg = TRUE;
+			s += 2;
+		}
+
+		g_string_assign (key, "");
+		g_string_assign (value, "");
+
+		while (*s != '\0' && *s != ':' && *s != '=' &&
+		       !g_ascii_isspace (*s))
+		{
+			g_string_append_c (key, *s);
+			s++;
+		}
+
+		if (*s == '=')
+		{
+			s++;
+			while (*s != '\0' && *s != ':' &&
+			       !g_ascii_isspace (*s))
+			{
+				g_string_append_c (value, *s);
+				s++;
+			}
+		}
+
+		if (strcmp (key->str, "ft") == 0 ||
+		    strcmp (key->str, "filetype") == 0)
+		{
+			g_free (options->language_id);
+			options->language_id = get_language_id_vim (value->str);
+
+			options->set |= MODELINE_SET_LANGUAGE;
+		}
+		else if (strcmp (key->str, "et") == 0 ||
+		    strcmp (key->str, "expandtab") == 0)
+		{
+			options->insert_spaces = !neg;
+			options->set |= MODELINE_SET_INSERT_SPACES;
+		}
+		else if (strcmp (key->str, "ts") == 0 ||
+			 strcmp (key->str, "tabstop") == 0)
+		{
+			intval = atoi (value->str);
+
+			if (intval)
+			{
+				options->tab_width = intval;
+				options->set |= MODELINE_SET_TAB_WIDTH;
+			}
+		}
+		else if (strcmp (key->str, "sw") == 0 ||
+			 strcmp (key->str, "shiftwidth") == 0)
+		{
+			intval = atoi (value->str);
+
+			if (intval)
+			{
+				options->indent_width = intval;
+				options->set |= MODELINE_SET_INDENT_WIDTH;
+			}
+		}
+		else if (strcmp (key->str, "wrap") == 0)
+		{
+			options->wrap_mode = neg ? GTK_WRAP_NONE : GTK_WRAP_WORD;
+
+			options->set |= MODELINE_SET_WRAP_MODE;
+		}
+		else if (strcmp (key->str, "textwidth") == 0 ||
+		         strcmp (key->str, "tw") == 0)
+		{
+			intval = atoi (value->str);
+
+			if (intval)
+			{
+				options->right_margin_position = intval;
+				options->display_right_margin = TRUE;
+
+				options->set |= MODELINE_SET_SHOW_RIGHT_MARGIN |
+				                MODELINE_SET_RIGHT_MARGIN_POSITION;
+
+			}
+		}
+	}
+
+	g_string_free (key, TRUE);
+	g_string_free (value, TRUE);
+
+	return s;
+}
+
+/* Parse emacs modelines.
+ * Emacs modelines looks like this: "-*- key1: value1; key2: value2 -*-"
+ * They can happen on the first line, or on the second one if the first line is
+ * a shebang (#!)
+ * See http://www.delorie.com/gnu/docs/emacs/emacs_486.html
+ */
+static gchar *
+parse_emacs_modeline (gchar           *s,
+		      ModelineOptions *options)
+{
+	guint intval;
+	GString *key, *value;
+
+	key = g_string_sized_new (8);
+	value = g_string_sized_new (8);
+
+	while (*s != '\0')
+	{
+		while (*s != '\0' && (*s == ';' || g_ascii_isspace (*s)))
+			s++;
+		if (*s == '\0' || strncmp (s, "-*-", 3) == 0)
+			break;
+
+		g_string_assign (key, "");
+		g_string_assign (value, "");
+
+		while (*s != '\0' && *s != ':' && *s != ';' &&
+		       !g_ascii_isspace (*s))
+		{
+			g_string_append_c (key, *s);
+			s++;
+		}
+
+		if (!skip_whitespaces (&s))
+			break;
+
+		if (*s != ':')
+			continue;
+		s++;
+
+		if (!skip_whitespaces (&s))
+			break;
+
+		while (*s != '\0' && *s != ';' && !g_ascii_isspace (*s))
+		{
+			g_string_append_c (value, *s);
+			s++;
+		}
+
+		gedit_debug_message (DEBUG_PLUGINS,
+				     "Emacs modeline bit: %s = %s",
+				     key->str, value->str);
+
+		/* "Mode" key is case insenstive */
+		if (g_ascii_strcasecmp (key->str, "Mode") == 0)
+		{
+			g_free (options->language_id);
+			options->language_id = get_language_id_emacs (value->str);
+
+			options->set |= MODELINE_SET_LANGUAGE;
+		}
+		else if (strcmp (key->str, "tab-width") == 0)
+		{
+			intval = atoi (value->str);
+
+			if (intval)
+			{
+				options->tab_width = intval;
+				options->set |= MODELINE_SET_TAB_WIDTH;
+			}
+		}
+		else if (strcmp (key->str, "indent-offset") == 0 ||
+		         strcmp (key->str, "c-basic-offset") == 0 ||
+		         strcmp (key->str, "js-indent-level") == 0)
+		{
+			intval = atoi (value->str);
+
+			if (intval)
+			{
+				options->indent_width = intval;
+				options->set |= MODELINE_SET_INDENT_WIDTH;
+			}
+		}
+		else if (strcmp (key->str, "indent-tabs-mode") == 0)
+		{
+			intval = strcmp (value->str, "nil") == 0;
+			options->insert_spaces = intval;
+
+			options->set |= MODELINE_SET_INSERT_SPACES;
+		}
+		else if (strcmp (key->str, "autowrap") == 0)
+		{
+			intval = strcmp (value->str, "nil") != 0;
+			options->wrap_mode = intval ? GTK_WRAP_WORD : GTK_WRAP_NONE;
+
+			options->set |= MODELINE_SET_WRAP_MODE;
+		}
+	}
+
+	g_string_free (key, TRUE);
+	g_string_free (value, TRUE);
+
+	return *s == '\0' ? s : s + 2;
+}
+
+/*
+ * Parse kate modelines.
+ * Kate modelines are of the form "kate: key1 value1; key2 value2;"
+ * These can happen on the 10 first or 10 last lines of the buffer.
+ * See http://wiki.kate-editor.org/index.php/Modelines
+ */
+static gchar *
+parse_kate_modeline (gchar           *s,
+		     ModelineOptions *options)
+{
+	guint intval;
+	GString *key, *value;
+
+	key = g_string_sized_new (8);
+	value = g_string_sized_new (8);
+
+	while (*s != '\0')
+	{
+		while (*s != '\0' && (*s == ';' || g_ascii_isspace (*s)))
+			s++;
+		if (*s == '\0')
+			break;
+
+		g_string_assign (key, "");
+		g_string_assign (value, "");
+
+		while (*s != '\0' && *s != ';' && !g_ascii_isspace (*s))
+		{
+			g_string_append_c (key, *s);
+			s++;
+		}
+
+		if (!skip_whitespaces (&s))
+			break;
+		if (*s == ';')
+			continue;
+
+		while (*s != '\0' && *s != ';' &&
+		       !g_ascii_isspace (*s))
+		{
+			g_string_append_c (value, *s);
+			s++;
+		}
+
+		gedit_debug_message (DEBUG_PLUGINS,
+				     "Kate modeline bit: %s = %s",
+				     key->str, value->str);
+
+		if (strcmp (key->str, "hl") == 0 ||
+		    strcmp (key->str, "syntax") == 0)
+		{
+			g_free (options->language_id);
+			options->language_id = get_language_id_kate (value->str);
+
+			options->set |= MODELINE_SET_LANGUAGE;
+		}
+		else if (strcmp (key->str, "tab-width") == 0)
+		{
+			intval = atoi (value->str);
+
+			if (intval)
+			{
+				options->tab_width = intval;
+				options->set |= MODELINE_SET_TAB_WIDTH;
+			}
+		}
+		else if (strcmp (key->str, "indent-width") == 0)
+		{
+			intval = atoi (value->str);
+			if (intval) options->indent_width = intval;
+		}
+		else if (strcmp (key->str, "space-indent") == 0)
+		{
+			intval = strcmp (value->str, "on") == 0 ||
+			         strcmp (value->str, "true") == 0 ||
+			         strcmp (value->str, "1") == 0;
+
+			options->insert_spaces = intval;
+			options->set |= MODELINE_SET_INSERT_SPACES;
+		}
+		else if (strcmp (key->str, "word-wrap") == 0)
+		{
+			intval = strcmp (value->str, "on") == 0 ||
+			         strcmp (value->str, "true") == 0 ||
+			         strcmp (value->str, "1") == 0;
+
+			options->wrap_mode = intval ? GTK_WRAP_WORD : GTK_WRAP_NONE;
+
+			options->set |= MODELINE_SET_WRAP_MODE;
+		}
+		else if (strcmp (key->str, "word-wrap-column") == 0)
+		{
+			intval = atoi (value->str);
+
+			if (intval)
+			{
+				options->right_margin_position = intval;
+				options->display_right_margin = TRUE;
+
+				options->set |= MODELINE_SET_RIGHT_MARGIN_POSITION |
+				                MODELINE_SET_SHOW_RIGHT_MARGIN;
+			}
+		}
+	}
+
+	g_string_free (key, TRUE);
+	g_string_free (value, TRUE);
+
+	return s;
+}
+
+/* Scan a line for vi(m)/emacs/kate modelines.
+ * Line numbers are counted starting at one.
+ */
+static void
+parse_modeline (gchar           *line,
+		gint             line_number,
+		gint             line_count,
+		ModelineOptions *options)
+{
+	gchar *s = line;
+
+	/* look for the beginning of a modeline */
+	while (s != NULL && *s != '\0')
+	{
+		if (s > line && !g_ascii_isspace (*(s - 1)))
+		{
+			s++;
+			continue;
+		}
+
+		if ((line_number <= 3 || line_number > line_count - 3) &&
+		    (strncmp (s, "ex:", 3) == 0 ||
+		     strncmp (s, "vi:", 3) == 0 ||
+		     strncmp (s, "vim:", 4) == 0))
+		{
+			gedit_debug_message (DEBUG_PLUGINS, "Vim modeline on line %d", line_number);
+
+			while (*s != ':')
+			{
+				s++;
+			}
+
+			s = parse_vim_modeline (s + 1, options);
+		}
+		else if (line_number <= 2 && strncmp (s, "-*-", 3) == 0)
+		{
+			gedit_debug_message (DEBUG_PLUGINS, "Emacs modeline on line %d", line_number);
+
+			s = parse_emacs_modeline (s + 3, options);
+		}
+		else if ((line_number <= 10 || line_number > line_count - 10) &&
+			 strncmp (s, "kate:", 5) == 0)
+		{
+			gedit_debug_message (DEBUG_PLUGINS, "Kate modeline on line %d", line_number);
+
+			s = parse_kate_modeline (s + 5, options);
+		}
+		else
+		{
+			s++;
+		}
+	}
+}
+
+static gboolean
+check_previous (GtkSourceView   *view,
+                ModelineOptions *previous,
+                ModelineSet      set)
+{
+	GtkSourceBuffer *buffer = GTK_SOURCE_BUFFER (gtk_text_view_get_buffer (GTK_TEXT_VIEW (view)));
+
+	/* Do not restore default when this is the first time */
+	if (!previous)
+		return FALSE;
+
+	/* Do not restore default when previous was not set */
+	if (!(previous->set & set))
+		return FALSE;
+
+	/* Only restore default when setting has not changed */
+	switch (set)
+	{
+		case MODELINE_SET_INSERT_SPACES:
+			return gtk_source_view_get_insert_spaces_instead_of_tabs (view) ==
+			       previous->insert_spaces;
+		break;
+		case MODELINE_SET_TAB_WIDTH:
+			return gtk_source_view_get_tab_width (view) == previous->tab_width;
+		break;
+		case MODELINE_SET_INDENT_WIDTH:
+			return gtk_source_view_get_indent_width (view) == previous->indent_width;
+		break;
+		case MODELINE_SET_WRAP_MODE:
+			return gtk_text_view_get_wrap_mode (GTK_TEXT_VIEW (view)) ==
+			       previous->wrap_mode;
+		break;
+		case MODELINE_SET_RIGHT_MARGIN_POSITION:
+			return gtk_source_view_get_right_margin_position (view) ==
+			       previous->right_margin_position;
+		break;
+		case MODELINE_SET_SHOW_RIGHT_MARGIN:
+			return gtk_source_view_get_show_right_margin (view) ==
+			       previous->display_right_margin;
+		break;
+		case MODELINE_SET_LANGUAGE:
+		{
+			GtkSourceLanguage *language = gtk_source_buffer_get_language (buffer);
+
+			return (language == NULL && previous->language_id == NULL) ||
+			       (language != NULL && g_strcmp0 (gtk_source_language_get_id (language),
+			                                       previous->language_id) == 0);
+		}
+		break;
+		default:
+			return FALSE;
+		break;
+	}
+}
+
+static void
+free_modeline_options (ModelineOptions *options)
+{
+	g_free (options->language_id);
+	g_slice_free (ModelineOptions, options);
+}
+
+void
+modeline_parser_apply_modeline (GtkSourceView *view)
+{
+	ModelineOptions options;
+	GtkTextBuffer *buffer;
+	GtkTextIter iter, liter;
+	gint line_count;
+	GSettings *settings;
+
+	options.language_id = NULL;
+	options.set = MODELINE_SET_NONE;
+
+	buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
+	gtk_text_buffer_get_start_iter (buffer, &iter);
+
+	line_count = gtk_text_buffer_get_line_count (buffer);
+
+	/* Parse the modelines on the 10 first lines... */
+	while ((gtk_text_iter_get_line (&iter) < 10) &&
+	       !gtk_text_iter_is_end (&iter))
+	{
+		gchar *line;
+
+		liter = iter;
+		gtk_text_iter_forward_to_line_end (&iter);
+		line = gtk_text_buffer_get_text (buffer, &liter, &iter, TRUE);
+
+		parse_modeline (line,
+				1 + gtk_text_iter_get_line (&iter),
+				line_count,
+				&options);
+
+		gtk_text_iter_forward_line (&iter);
+
+		g_free (line);
+	}
+
+	/* ...and on the 10 last ones (modelines are not allowed in between) */
+	if (!gtk_text_iter_is_end (&iter))
+	{
+		gint cur_line;
+		guint remaining_lines;
+
+		/* we are on the 11th line (count from 0) */
+		cur_line = gtk_text_iter_get_line (&iter);
+		/* g_assert (10 == cur_line); */
+
+		remaining_lines = line_count - cur_line - 1;
+
+		if (remaining_lines > 10)
+		{
+			gtk_text_buffer_get_end_iter (buffer, &iter);
+			gtk_text_iter_backward_lines (&iter, 9);
+		}
+	}
+
+	while (!gtk_text_iter_is_end (&iter))
+	{
+		gchar *line;
+
+		liter = iter;
+		gtk_text_iter_forward_to_line_end (&iter);
+		line = gtk_text_buffer_get_text (buffer, &liter, &iter, TRUE);
+
+		parse_modeline (line,
+				1 + gtk_text_iter_get_line (&iter),
+				line_count,
+				&options);
+
+		gtk_text_iter_forward_line (&iter);
+
+		g_free (line);
+	}
+
+	/* Try to set language */
+	if (has_option (&options, MODELINE_SET_LANGUAGE) && options.language_id)
+	{
+		if (g_ascii_strcasecmp (options.language_id, "text") == 0)
+		{
+			gedit_document_set_language (GEDIT_DOCUMENT (buffer),
+			                             NULL);
+		}
+		else
+		{
+		        GtkSourceLanguageManager *manager;
+		        GtkSourceLanguage *language;
+
+		        manager = gtk_source_language_manager_get_default ();
+
+			language = gtk_source_language_manager_get_language
+					(manager, options.language_id);
+			if (language != NULL)
+			{
+				gedit_document_set_language (GEDIT_DOCUMENT (buffer),
+				                             language);
+			}
+			else
+			{
+				gedit_debug_message (DEBUG_PLUGINS,
+						     "Unknown language `%s'",
+						     options.language_id);
+			}
+		}
+	}
+
+	ModelineOptions *previous = g_object_get_data (G_OBJECT (buffer),
+	                                               MODELINE_OPTIONS_DATA_KEY);
+
+	settings = g_settings_new ("org.gnome.gedit.preferences.editor");
+
+	/* Apply the options we got from modelines and restore defaults if
+	   we set them before */
+	if (has_option (&options, MODELINE_SET_INSERT_SPACES))
+	{
+		gtk_source_view_set_insert_spaces_instead_of_tabs
+							(view, options.insert_spaces);
+	}
+	else if (check_previous (view, previous, MODELINE_SET_INSERT_SPACES))
+	{
+		gboolean insert_spaces;
+
+		insert_spaces = g_settings_get_boolean (settings, GEDIT_SETTINGS_INSERT_SPACES);
+
+		gtk_source_view_set_insert_spaces_instead_of_tabs (view, insert_spaces);
+	}
+
+	if (has_option (&options, MODELINE_SET_TAB_WIDTH))
+	{
+		gtk_source_view_set_tab_width (view, options.tab_width);
+	}
+	else if (check_previous (view, previous, MODELINE_SET_TAB_WIDTH))
+	{
+		guint tab_width;
+
+		g_settings_get (settings, GEDIT_SETTINGS_TABS_SIZE, "u", &tab_width);
+
+		gtk_source_view_set_tab_width (view, tab_width);
+	}
+
+	if (has_option (&options, MODELINE_SET_INDENT_WIDTH))
+	{
+		gtk_source_view_set_indent_width (view, options.indent_width);
+	}
+	else if (check_previous (view, previous, MODELINE_SET_INDENT_WIDTH))
+	{
+		gtk_source_view_set_indent_width (view, -1);
+	}
+
+	if (has_option (&options, MODELINE_SET_WRAP_MODE))
+	{
+		gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (view), options.wrap_mode);
+	}
+	else if (check_previous (view, previous, MODELINE_SET_WRAP_MODE))
+	{
+		GtkWrapMode mode;
+
+		mode = g_settings_get_enum (settings,
+					    GEDIT_SETTINGS_WRAP_MODE);
+		gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (view), mode);
+	}
+
+	if (has_option (&options, MODELINE_SET_RIGHT_MARGIN_POSITION))
+	{
+		gtk_source_view_set_right_margin_position (view, options.right_margin_position);
+	}
+	else if (check_previous (view, previous, MODELINE_SET_RIGHT_MARGIN_POSITION))
+	{
+		guint right_margin_pos;
+
+		g_settings_get (settings, GEDIT_SETTINGS_RIGHT_MARGIN_POSITION, "u",
+				&right_margin_pos);
+		gtk_source_view_set_right_margin_position (view,
+		                                           right_margin_pos);
+	}
+
+	if (has_option (&options, MODELINE_SET_SHOW_RIGHT_MARGIN))
+	{
+		gtk_source_view_set_show_right_margin (view, options.display_right_margin);
+	}
+	else if (check_previous (view, previous, MODELINE_SET_SHOW_RIGHT_MARGIN))
+	{
+		gboolean display_right_margin;
+
+		display_right_margin = g_settings_get_boolean (settings,
+							       GEDIT_SETTINGS_DISPLAY_RIGHT_MARGIN);
+		gtk_source_view_set_show_right_margin (view, display_right_margin);
+	}
+
+	if (previous)
+	{
+		g_free (previous->language_id);
+		*previous = options;
+		previous->language_id = g_strdup (options.language_id);
+	}
+	else
+	{
+		previous = g_slice_new (ModelineOptions);
+		*previous = options;
+		previous->language_id = g_strdup (options.language_id);
+
+		g_object_set_data_full (G_OBJECT (buffer),
+		                        MODELINE_OPTIONS_DATA_KEY,
+		                        previous,
+		                        (GDestroyNotify)free_modeline_options);
+	}
+
+	g_object_unref (settings);
+	g_free (options.language_id);
+}
+
+/* vi:ts=8 */
diff --git a/plugins/modelines/modeline-parser.h b/plugins/modelines/modeline-parser.h
new file mode 100644
index 0000000..0fbf9a1
--- /dev/null
+++ b/plugins/modelines/modeline-parser.h
@@ -0,0 +1,36 @@
+/*
+ * modelie-parser.h
+ * Emacs, Kate and Vim-style modelines support for gedit.
+ *
+ * Copyright (C) 2005-2007 - Steve Frécinaux <code@istique.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef MODELINE_PARSER_H
+#define MODELINE_PARSER_H
+
+#include <glib.h>
+#include <gtksourceview/gtksource.h>
+
+G_BEGIN_DECLS
+
+void	modeline_parser_init		(const gchar *data_dir);
+void	modeline_parser_shutdown	(void);
+void	modeline_parser_apply_modeline	(GtkSourceView *view);
+
+G_END_DECLS
+
+#endif /* MODELINE_PARSER_H */
+/* ex:set ts=8 noet: */
diff --git a/plugins/modelines/modelines.plugin.desktop.in b/plugins/modelines/modelines.plugin.desktop.in
new file mode 100644
index 0000000..d334c55
--- /dev/null
+++ b/plugins/modelines/modelines.plugin.desktop.in
@@ -0,0 +1,8 @@
+[Plugin]
+Module=modelines
+IAge=3
+Name=Modelines
+Description=Emacs, Kate and Vim-style modelines support for gedit.
+Authors=Steve Frécinaux <steve@istique.net>
+Copyright=Copyright © 2005 Steve Frécinaux
+Website=http://www.gedit.org