Reorganize the parser/AST code

The code is now organized by syntax: `menu {}` in one file, `style` in
another, etc. This should make it easier to add syntax in the future.

gtkblueprinttool/extensions/__init__.py

@@ -0,0 +1,10 @@
+""" Contains all the syntax beyond basic objects, properties, signal, and
+templates. """
+
+from .gtk_menu import menu
+from .gtk_styles import styles
+from .gtk_layout import layout
+
+OBJECT_HOOKS = [menu]
+
+OBJECT_CONTENT_HOOKS = [styles, layout]

gtkblueprinttool/extensions/gtk_layout.py

@@ -0,0 +1,56 @@
+# gtk_layout.py
+#
+# Copyright 2021 James Westman <james@jwestman.net>
+#
+# This file 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 3 of the
+# License, or (at your option) any later version.
+#
+# This file 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 program.  If not, see <http://www.gnu.org/licenses/>.
+#
+# SPDX-License-Identifier: LGPL-3.0-or-later
+
+
+from ..ast_utils import AstNode, BaseAttribute
+from ..completions_utils import *
+from ..parse_tree import *
+from ..parser_utils import *
+from ..xml_emitter import XmlEmitter
+
+
+class Layout(AstNode):
+    def emit_xml(self, xml: XmlEmitter):
+        xml.start_tag("layout")
+        for child in self.children:
+            child.emit_xml(xml)
+        xml.end_tag()
+
+
+class LayoutProperty(BaseAttribute):
+    tag_name = "property"
+
+
+layout_prop = Group(
+    LayoutProperty,
+    Statement(
+        UseIdent("name"),
+        Op(":"),
+        value.expected("a value"),
+    )
+)
+
+layout = Group(
+    Layout,
+    Sequence(
+        Keyword("layout"),
+        OpenBlock().expected("`{`"),
+        Until(layout_prop, CloseBlock()),
+    )
+)

gtkblueprinttool/extensions/gtk_menu.py

@@ -0,0 +1,172 @@
+# gtk_menus.py
+#
+# Copyright 2021 James Westman <james@jwestman.net>
+#
+# This file 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 3 of the
+# License, or (at your option) any later version.
+#
+# This file 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 program.  If not, see <http://www.gnu.org/licenses/>.
+#
+# SPDX-License-Identifier: LGPL-3.0-or-later
+
+
+from ..ast_utils import AstNode, BaseAttribute
+from ..completions_utils import *
+from ..lsp_utils import Completion, CompletionItemKind
+from ..parse_tree import *
+from ..parser_utils import *
+from ..xml_emitter import XmlEmitter
+
+
+class Menu(AstNode):
+    def emit_xml(self, xml: XmlEmitter):
+        xml.start_tag(self.tokens["tag"], id=self.tokens["id"])
+        for child in self.children:
+            child.emit_xml()
+        xml.end_tag()
+
+
+class MenuAttribute(BaseAttribute):
+    tag_name = "attribute"
+
+
+menu_contents = Sequence()
+
+menu_section = Group(
+    Menu,
+    Sequence(
+        Keyword("section"),
+        UseLiteral("tag", "section"),
+        Optional(UseIdent("id")),
+        menu_contents
+    )
+)
+
+menu_submenu = Group(
+    Menu,
+    Sequence(
+        Keyword("submenu"),
+        UseLiteral("tag", "submenu"),
+        Optional(UseIdent("id")),
+        menu_contents
+    )
+)
+
+menu_attribute = Group(
+    MenuAttribute,
+    Sequence(
+        UseIdent("name"),
+        Op(":"),
+        value.expected("a value"),
+        StmtEnd().expected("`;`"),
+    )
+)
+
+menu_item = Group(
+    Menu,
+    Sequence(
+        Keyword("item"),
+        UseLiteral("tag", "item"),
+        Optional(UseIdent("id")),
+        OpenBlock().expected("`{`"),
+        Until(menu_attribute, CloseBlock()),
+    )
+)
+
+menu_item_shorthand = Group(
+    Menu,
+    Sequence(
+        Keyword("item"),
+        UseLiteral("tag", "item"),
+        Group(
+            MenuAttribute,
+            Sequence(UseLiteral("name", "label"), value),
+        ),
+        Optional(Group(
+            MenuAttribute,
+            Sequence(UseLiteral("name", "action"), value),
+        )),
+        Optional(Group(
+            MenuAttribute,
+            Sequence(UseLiteral("name", "verb-icon-name"), value),
+        )),
+        StmtEnd().expected("`;`"),
+    )
+)
+
+menu_contents.children = [
+    OpenBlock().expected("`{`"),
+    Until(AnyOf(
+        menu_section,
+        menu_submenu,
+        menu_item_shorthand,
+        menu_item,
+        menu_attribute,
+    ), CloseBlock()),
+]
+
+menu = Group(
+    Menu,
+    Sequence(
+        Keyword("menu"),
+        UseLiteral("tag", "menu"),
+        Optional(UseIdent("id")),
+        menu_contents
+    ),
+)
+
+
+@completer(
+    applies_in=[ast.UI],
+    matches=new_statement_patterns,
+)
+def menu_completer(ast_node, match_variables):
+    yield Completion(
+        "menu", CompletionItemKind.Snippet,
+        snippet="menu {\n  $0\n}"
+    )
+
+
+@completer(
+    applies_in=[Menu],
+    matches=new_statement_patterns,
+)
+def menu_content_completer(ast_node, match_variables):
+    yield Completion(
+        "submenu", CompletionItemKind.Snippet,
+        snippet="submenu {\n  $0\n}"
+    )
+    yield Completion(
+        "section", CompletionItemKind.Snippet,
+        snippet="section {\n  $0\n}"
+    )
+    yield Completion(
+        "item", CompletionItemKind.Snippet,
+        snippet="item {\n  $0\n}"
+    )
+    yield Completion(
+        "item (shorthand)", CompletionItemKind.Snippet,
+        snippet='item _("${1:Label}") "${2:action-name}" "${3:icon-name}";'
+    )
+
+    yield Completion(
+        "label", CompletionItemKind.Snippet,
+        snippet='label: $0;'
+    )
+    yield Completion(
+        "action", CompletionItemKind.Snippet,
+        snippet='action: "$0";'
+    )
+    yield Completion(
+        "icon", CompletionItemKind.Snippet,
+        snippet='icon: "$0";'
+    )
+

gtkblueprinttool/extensions/gtk_styles.py

@@ -0,0 +1,64 @@
+# gtk_styles.py
+#
+# Copyright 2021 James Westman <james@jwestman.net>
+#
+# This file 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 3 of the
+# License, or (at your option) any later version.
+#
+# This file 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 program.  If not, see <http://www.gnu.org/licenses/>.
+#
+# SPDX-License-Identifier: LGPL-3.0-or-later
+
+
+from .. import ast
+from ..ast_utils import AstNode, BaseAttribute
+from ..completions_utils import *
+from ..lsp_utils import Completion, CompletionItemKind
+from ..parse_tree import *
+from ..parser_utils import *
+from ..xml_emitter import XmlEmitter
+
+
+class Styles(AstNode):
+    def emit_xml(self, xml: XmlEmitter):
+        xml.start_tag("style")
+        for child in self.children:
+            child.emit_xml(xml)
+        xml.end_tag()
+
+
+class StyleClass(AstNode):
+    def emit_xml(self, xml):
+        xml.put_self_closing("class", name=self.tokens["name"])
+
+
+styles = Group(
+    Styles,
+    Statement(
+        Keyword("style"),
+        Delimited(
+            Group(
+                StyleClass,
+                UseQuoted("name")
+            ),
+            Comma(),
+        ),
+    )
+)
+
+
+@completer(
+    applies_in=[ast.ObjectContent],
+    matches=new_statement_patterns,
+)
+def style_completer(ast_node, match_variables):
+    yield Completion("style", CompletionItemKind.Keyword, snippet="style \"$0\";")
+