1 files changed, 75 insertions, 0 deletions
diff --git a/solenv/gdb/libreoffice/util/string.py b/solenv/gdb/libreoffice/util/string.py
new file mode 100644
index 000000000..742aabbac
--- /dev/null
+++ b/solenv/gdb/libreoffice/util/string.py
@@ -0,0 +1,75 @@
+# -*- tab-width: 4; indent-tabs-mode: nil; py-indent-offset: 4 -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+import gdb
+
+from libreoffice.util.compatibility import use_lazy_string
+
+class StringPrinterHelper(object):
+    '''Base for all string pretty printers'''
+
+    class MustBeImplemented(Exception):
+        pass
+
+    def __init__(self, typename, val, encoding = None):
+        self.typename = typename
+        self.val = val
+        self.encoding = encoding
+
+    def to_string(self):
+        if self.valid():
+            data = self.data()
+            len = self.length()
+            return self.make_string(data, self.encoding, len)
+        else:
+            return "uninitialized %s" % self.typename
+
+    def display_hint(self):
+        if self.valid():
+            return 'string'
+        else:
+            return None
+
+    def valid(self):
+        return True
+
+    def data(self):
+        raise self.MustBeImplemented()
+
+    def length(self):
+        return -1
+
+    @staticmethod
+    def make_string(data, encoding = None, length = -1):
+        '''Creates a new string from memory'''
+
+        if not encoding:
+            encoding = ''
+
+        # we need to determine length, if not given (for sal_Unicode*)
+        if length < 0:
+            length = 0
+            while data[length] != 0 and length <= 512: # arbitrary limit
+                length += 1
+
+        if use_lazy_string:
+            return data.lazy_string(encoding, length)
+
+        # The gdb.Value.string() conversion works on array of bytes, but
+        # the length we have is the length of the string. So we must
+        # multiply it by width of character if the string is Unicode.
+        width = data[0].type.sizeof
+        if width > 1:
+            length = length * width
+
+        char = gdb.lookup_type('char')
+        bytes = data.cast(char.pointer())
+        return bytes.string(encoding, length = length)
+
+# vim:set shiftwidth=4 softtabstop=4 expandtab: