[Utils] Add back utils directory

Due to a bug my earlier commit removed the whole utils directory:
https://reviews.llvm.org/D65123

llvm-svn: 366830

1 files changed, 81 insertions, 0 deletions

diff --git a/lldb/utils/vim-lldb/python-vim-lldb/vim_signs.py b/lldb/utils/vim-lldb/python-vim-lldb/vim_signs.py
new file mode 100644
index 00000000000..94f79ecebe8
--- /dev/null
+++ b/lldb/utils/vim-lldb/python-vim-lldb/vim_signs.py
@@ -0,0 +1,81 @@
+
+# Classes responsible for drawing signs in the Vim user interface.
+
+import vim
+
+
+class VimSign(object):
+    SIGN_TEXT_BREAKPOINT_RESOLVED = "B>"
+    SIGN_TEXT_BREAKPOINT_UNRESOLVED = "b>"
+    SIGN_TEXT_PC = "->"
+    SIGN_HIGHLIGHT_COLOUR_PC = 'darkblue'
+
+    # unique sign id (for ':[sign/highlight] define)
+    sign_id = 1
+
+    # unique name id (for ':sign place')
+    name_id = 1
+
+    # Map of {(sign_text, highlight_colour) --> sign_name}
+    defined_signs = {}
+
+    def __init__(self, sign_text, buffer, line_number, highlight_colour=None):
+        """ Define the sign and highlight (if applicable) and show the sign. """
+
+        # Get the sign name, either by defining it, or looking it up in the map
+        # of defined signs
+        key = (sign_text, highlight_colour)
+        if key not in VimSign.defined_signs:
+            name = self.define(sign_text, highlight_colour)
+        else:
+            name = VimSign.defined_signs[key]
+
+        self.show(name, buffer.number, line_number)
+        pass
+
+    def define(self, sign_text, highlight_colour):
+        """ Defines sign and highlight (if highlight_colour is not None). """
+        sign_name = "sign%d" % VimSign.name_id
+        if highlight_colour is None:
+            vim.command("sign define %s text=%s" % (sign_name, sign_text))
+        else:
+            self.highlight_name = "highlight%d" % VimSign.name_id
+            vim.command(
+                "highlight %s ctermbg=%s guibg=%s" %
+                (self.highlight_name, highlight_colour, highlight_colour))
+            vim.command(
+                "sign define %s text=%s linehl=%s texthl=%s" %
+                (sign_name, sign_text, self.highlight_name, self.highlight_name))
+        VimSign.defined_signs[(sign_text, highlight_colour)] = sign_name
+        VimSign.name_id += 1
+        return sign_name
+
+    def show(self, name, buffer_number, line_number):
+        self.id = VimSign.sign_id
+        VimSign.sign_id += 1
+        vim.command("sign place %d name=%s line=%d buffer=%s" %
+                    (self.id, name, line_number, buffer_number))
+        pass
+
+    def hide(self):
+        vim.command("sign unplace %d" % self.id)
+        pass
+
+
+class BreakpointSign(VimSign):
+
+    def __init__(self, buffer, line_number, is_resolved):
+        txt = VimSign.SIGN_TEXT_BREAKPOINT_RESOLVED if is_resolved else VimSign.SIGN_TEXT_BREAKPOINT_UNRESOLVED
+        super(BreakpointSign, self).__init__(txt, buffer, line_number)
+
+
+class PCSign(VimSign):
+
+    def __init__(self, buffer, line_number, is_selected_thread):
+        super(
+            PCSign,
+            self).__init__(
+            VimSign.SIGN_TEXT_PC,
+            buffer,
+            line_number,
+            VimSign.SIGN_HIGHLIGHT_COLOUR_PC if is_selected_thread else None)