Add my new parser playground to svn.

Currently it can load a skin, and walk the parse tree and output the tags as required. It always chooses the first value for a conditional and subline, but a good working start
there seems to be a error in the new parser if ROCKBOX is defined... need to fix that


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26757 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 95 insertions, 0 deletions

diff --git a/utils/newparser/skin_render.c b/utils/newparser/skin_render.c
new file mode 100644
index 0000000..68dfd78
--- /dev/null
+++ b/utils/newparser/skin_render.c
@@ -0,0 +1,95 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id: skin_parser.c 26752 2010-06-10 21:22:16Z bieber $
+ *
+ * Copyright (C) 2010 Jonathan Gordon
+ *
+ * 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
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+
+#include "skin_parser.h"
+#include "skin_debug.h"
+#include "tag_table.h"
+#include "symbols.h"
+#include "skin_scan.h"
+
+void skin_render_alternator(struct skin_element* alternator);
+
+/* Draw a LINE element onto the display */
+void skin_render_line(struct skin_element* line)
+{
+    int i=0, value;
+    struct skin_element *child = line->children[0];
+    while (child)
+    {
+        switch (child->type)
+        {
+            case CONDITIONAL:
+                value = 0; /* actually get it from the token :p */
+                if (value >= child->children_count)
+                    value = child->children_count-1;
+                if (child->children[value]->type == SUBLINES)
+                    skin_render_alternator(child->children[value]);
+                else if (child->children[value]->type == LINE)
+                    skin_render_line(child->children[value]);
+                break;
+            case TAG:
+                printf("%%%s", child->tag->name);
+                break;
+            case TEXT:
+                printf("%s", (char*)(child->data));
+                break;
+            case COMMENT:
+            default:
+                break;
+        }
+        child = child->next;
+    }
+    printf("\n"); /* might be incorrect */
+}
+
+void skin_render_alternator(struct skin_element* alternator)
+{
+    /*TODO Choose which subline to draw */
+    skin_render_line(alternator->children[0]);
+}
+
+void skin_render_viewport(struct skin_element* viewport)
+{
+    struct skin_element *line = viewport;
+    while (line)
+    {
+        if (line->type == SUBLINES)
+            skin_render_alternator(line);
+        else if (line->type == LINE)
+            skin_render_line(line);
+        line = line->next;
+    }
+}
+
+void skin_render(struct skin_element* root)
+{
+    struct skin_element* viewport = root;
+    while (viewport)
+    {
+        skin_render_viewport(viewport->children[viewport->children_count-1]);
+        viewport = viewport->next;
+    }
+}