Update RapydScript

resources/rapydscript/lib/traceback.pyj

@@ -0,0 +1,51 @@
+# vim:fileencoding=utf-8
+# License: BSD Copyright: 2016, Kovid Goyal <kovid at kovidgoyal.net>
+# globals: ρσ_str, ρσ_last_exception
+
+def _get_internal_traceback(err):
+    if isinstance(err, Exception) and err.stack:
+        lines = ρσ_str.splitlines(err.stack)
+        for i, line in enumerate(lines):
+            line = ρσ_str.strip(line)
+            # These two conditions work on desktop Chrome and Firefox to identify the correct
+            # line in the traceback.
+            if line.startsWith('at new ' + err.name) or line.startsWith(err.name + '@'):
+                return err.__repr__() + '\n' +  lines.slice(i+1).join('\n')
+    return err and err.stack
+
+def format_exception(exc, limit):
+    if not isinstance(exc, Error):
+        if exc and exc.toString:
+            return [exc.toString()]
+        return []
+    tb = _get_internal_traceback(exc)
+    if tb:
+        lines = ρσ_str.splitlines(tb)
+        e = lines[0]
+        lines = [l for l in lines[1:]]
+        if limit:
+            lines = lines[:limit+1] if limit > 0 else lines[limit:]
+        lines.reverse()
+        lines.push(e)
+        lines.insert(0, 'Traceback (most recent call last):')
+        return [l+'\n' for l in lines]
+    return [exc.toString()]
+
+def format_exc(limit):
+    return format_exception(ρσ_last_exception, limit).join('')
+
+def print_exc(limit):
+    print(format_exc(limit))
+
+def format_stack(limit):
+    stack = Error().stack
+    if not stack:
+        return []
+    lines = str.splitlines(stack)[2:]
+    lines.reverse()
+    if limit:
+        lines = lines[:limit+1] if limit > 0 else lines[limit:]
+    return [l + '\n' for l in lines]
+
+def print_stack(limit):
+    print(format_stack(limit).join(''))