Add support for partials and path segments for Handlebars.

This introduces support for some missing features to the Handlebars lexer:
Partials and path segments. Partials mostly appeared to work before, but the
`>` in `{{> ... }}` would appear as a syntax error, as could other
components of the partial. This change introduces support for:

* Standard partials: `{{> partialName}}`
* Partials with parameters: `{{> partialName varname="value"}}`
* Ddynamic partials: `{{> (partialFunc)}}`
* Ddynamic partials with lookups: `{{> (lookup ../path "partialName")}}`
* Partial blocks: `{{> @partial-block}}`
* Inline partials: `{{#*inline}}..{{/inline}}`

It also introduces support for path segments, which can reference content in
the current context or in a parent context. For instance, `this.name`,
`this/name`, `./name`, `../name`, `this/name`, etc. These are all now tracked
as variables.

1 files changed, 41 insertions, 0 deletions

diff --git a/pygments/styles/sas.py b/pygments/styles/sas.py
new file mode 100644
index 00000000..8b7fc56e
--- /dev/null
+++ b/pygments/styles/sas.py
@@ -0,0 +1,41 @@
+# -*- coding: utf-8 -*-
+"""
+    pygments.styles.sas
+    ~~~~~~~~~~~~~~~~~~~
+
+    Style inspired by SAS' enhanced program editor. Note This is not
+    meant to be a complete style. It's merely meant to mimic SAS'
+    program editor syntax highlighting.
+"""
+
+from pygments.style import Style
+from pygments.token import Keyword, Name, Comment, String, Error, \
+    Number, Other, Whitespace, Generic
+
+
+class SasStyle(Style):
+    """
+    Style inspired by SAS' enhanced program editor. Note This is not
+    meant to be a complete style. It's merely meant to mimic SAS'
+    program editor syntax highlighting.
+    """
+
+    default_style = ''
+
+    styles = {
+        Whitespace:            '#bbbbbb',
+        Comment:               'italic #008800',
+        String:                '#800080',
+        Number:                'bold #2e8b57',
+        Other:                 'bg:#ffffe0',
+        Keyword:               '#2c2cff',
+        Keyword.Reserved:      'bold #353580',
+        Keyword.Constant:      'bold',
+        Name.Builtin:          '#2c2cff',
+        Name.Function:         'bold italic',
+        Name.Variable:         'bold #2c2cff',
+        Generic:               '#2c2cff',
+        Generic.Emph:          '#008800',
+        Generic.Error:         '#d30202',
+        Error:                 'bg:#e3d2d2 #a61717'
+    }