[gnome-builder/wip/gtk4-port] plugins/debuggerui: add simple highlighting for disassembly

[Christian Hergert <chergert src gnome org>]

commit 1f14dbb63c7f9dc83e53600660cb4a2c9295c082
Author: Christian Hergert <chergert redhat com>
Date:   Wed May 11 14:00:25 2022 -0700

    plugins/debuggerui: add simple highlighting for disassembly

 src/libide/gui/ide-application.c                   |  5 ++
 src/plugins/debuggerui/builder-disassembly.lang    | 81 ++++++++++++++++++++++
 src/plugins/debuggerui/debuggerui.gresource.xml    |  3 +
 .../debuggerui/ide-debugger-disassembly-view.c     | 13 +++-
 4 files changed, 101 insertions(+), 1 deletion(-)
---
diff --git a/src/libide/gui/ide-application.c b/src/libide/gui/ide-application.c
index 9feb93894..5e71bb239 100644
--- a/src/libide/gui/ide-application.c
+++ b/src/libide/gui/ide-application.c
@@ -157,6 +157,7 @@ ide_application_startup (GApplication *app)
   IdeApplication *self = (IdeApplication *)app;
   g_autofree gchar *style_path = NULL;
   GtkSourceStyleSchemeManager *styles;
+  GtkSourceLanguageManager *langs;
   GtkIconTheme *icon_theme;
 
   g_assert (IDE_IS_MAIN_THREAD ());
@@ -174,6 +175,10 @@ ide_application_startup (GApplication *app)
   gtk_source_style_scheme_manager_append_search_path (styles, style_path);
   gtk_source_style_scheme_manager_append_search_path (styles, PACKAGE_DATADIR"/gtksourceview-5/styles/");
 
+  /* Add custom locations for language specs */
+  langs = gtk_source_language_manager_get_default ();
+  gtk_source_language_manager_append_search_path (langs, 
"resource:///org/gnome/builder/gtksourceview/language-specs");
+
   /* Setup access to portal settings */
   _ide_application_init_settings (self);
 
diff --git a/src/plugins/debuggerui/builder-disassembly.lang b/src/plugins/debuggerui/builder-disassembly.lang
new file mode 100644
index 000000000..24d557e64
--- /dev/null
+++ b/src/plugins/debuggerui/builder-disassembly.lang
@@ -0,0 +1,81 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ide-debugger.lang
+
+Copyright 2022 Christian Hergert <chergert redhat com>
+
+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 3 of the License, 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/>.
+
+SPDX-License-Identifier: GPL-3.0-or-later
+-->
+<language id="builder-disassembly" name="builder-disassembly" hidden="true" version="2.0">
+
+  <styles>
+    <style id="offset"       name="Address Offset"      map-to="def:floating-point"/>
+    <style id="address"      name="Address"             map-to="def:base-n-integer"/>
+    <style id="instruction"  name="Instruction"         map-to="def:keyword"/>
+    <style id="function"     name="Function"            map-to="def:function"/>
+    <style id="location"     name="Location"            map-to="def:preprocessor"/>
+    <style id="register"     name="Register"            map-to="def:special-char"/>
+  </styles>
+
+  <definitions>
+    <context id="instructions">
+      <match extended="true">:\t([a-zA-Z0-9]+)</match>
+      <include>
+        <context id="instruction" sub-pattern="1" style-ref="instruction"/>
+      </include>
+    </context>
+
+    <context id="function" style-ref="function">
+      <match>[a-zA-Z][a-zA-Z0-9_:]?</match>
+    </context>
+
+    <context id="offset" style-ref="offset">
+      <match extended="true">\+[0-9]+</match>
+    </context>
+
+    <context id="location" style-ref="location">
+      <start>&lt;</start>
+      <end>&gt;</end>
+      <include>
+        <context ref="function"/>
+        <context ref="offset"/>
+      </include>
+    </context>
+
+    <context id="register" style-ref="register">
+      <match>%[a-z0-9]+</match>
+    </context>
+
+    <context id="address" style-ref="address">
+      <match extended="true">
+        (?&lt;![\w\.])
+        \$?0[xX][a-fA-F0-9]+
+        (?![\w\.])
+      </match>
+    </context>
+
+    <!-- Main Context -->
+    <context id="builder-disassembly">
+      <include>
+        <context ref="address"/>
+        <context ref="instructions"/>
+        <context ref="register"/>
+        <context ref="location"/>
+      </include>
+    </context>
+  </definitions>
+
+</language>
diff --git a/src/plugins/debuggerui/debuggerui.gresource.xml b/src/plugins/debuggerui/debuggerui.gresource.xml
index d4dcfa07c..dc3e411ac 100644
--- a/src/plugins/debuggerui/debuggerui.gresource.xml
+++ b/src/plugins/debuggerui/debuggerui.gresource.xml
@@ -15,4 +15,7 @@
     <file preprocess="xml-stripblanks">ide-debugger-threads-view.ui</file>
     <file preprocess="xml-stripblanks">ide-debugger-log-view.ui</file>
   </gresource>
+  <gresource prefix="/org/gnome/builder/gtksourceview/language-specs">
+    <file>builder-disassembly.lang</file>
+  </gresource>
 </gresources>
diff --git a/src/plugins/debuggerui/ide-debugger-disassembly-view.c 
b/src/plugins/debuggerui/ide-debugger-disassembly-view.c
index 9711a52da..88f7bb386 100644
--- a/src/plugins/debuggerui/ide-debugger-disassembly-view.c
+++ b/src/plugins/debuggerui/ide-debugger-disassembly-view.c
@@ -24,6 +24,7 @@
 
 #include <libide-sourceview.h>
 
+#include "gbp-debuggerui-resources.h"
 #include "ide-debugger-disassembly-view.h"
 #include "ide-debugger-instruction.h"
 
@@ -78,13 +79,23 @@ ide_debugger_disassembly_view_class_init (IdeDebuggerDisassemblyViewClass *klass
   gtk_widget_class_set_template_from_resource (widget_class, 
"/plugins/debuggerui/ide-debugger-disassembly-view.ui");
   gtk_widget_class_bind_template_child (widget_class, IdeDebuggerDisassemblyView, source_buffer);
   gtk_widget_class_bind_template_child (widget_class, IdeDebuggerDisassemblyView, source_view);
+
+  g_resources_register (gbp_debuggerui_get_resource ());
 }
 
 static void
 ide_debugger_disassembly_view_init (IdeDebuggerDisassemblyView *self)
 {
+  GtkSourceLanguageManager *langs;
+  GtkSourceLanguage *lang;
+
   gtk_widget_init_template (GTK_WIDGET (self));
 
+  langs = gtk_source_language_manager_get_default ();
+  lang = gtk_source_language_manager_get_language (langs, "builder-disassembly");
+  g_assert (lang != NULL);
+  gtk_source_buffer_set_language (self->source_buffer, lang);
+
   g_object_bind_property_full (IDE_APPLICATION_DEFAULT, "style-scheme",
                                self->source_buffer, "style-scheme",
                                G_BINDING_SYNC_CREATE,
@@ -144,7 +155,7 @@ ide_debugger_disassembly_view_set_instructions (IdeDebuggerDisassemblyView *self
       for (guint i = 0; i < self->instructions->len; i++)
         {
           IdeDebuggerInstruction *inst = g_ptr_array_index (self->instructions, i);
-          g_autofree gchar *str = g_strdup_printf ("0x%"G_GINT64_MODIFIER"x <+%03"G_GINT64_MODIFIER"u>:  
%s\n",
+          g_autofree gchar *str = g_strdup_printf ("0x%"G_GINT64_MODIFIER"x 
<+%03"G_GINT64_MODIFIER"u>:\t%s\n",
                                                    ide_debugger_instruction_get_address (inst),
                                                    ide_debugger_instruction_get_address (inst) - first,
                                                    ide_debugger_instruction_get_display (inst));