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, 21 insertions, 0 deletions

diff --git a/pygments/lexers/math.py b/pygments/lexers/math.py
new file mode 100644
index 00000000..7a92f5bb
--- /dev/null
+++ b/pygments/lexers/math.py
@@ -0,0 +1,21 @@
+# -*- coding: utf-8 -*-
+"""
+    pygments.lexers.math
+    ~~~~~~~~~~~~~~~~~~~~
+
+    Just export lexers that were contained in this module.
+
+    :copyright: Copyright 2006-2015 by the Pygments team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+"""
+
+from pygments.lexers.python import NumPyLexer
+from pygments.lexers.matlab import MatlabLexer, MatlabSessionLexer, \
+    OctaveLexer, ScilabLexer
+from pygments.lexers.julia import JuliaLexer, JuliaConsoleLexer
+from pygments.lexers.r import RConsoleLexer, SLexer, RdLexer
+from pygments.lexers.modeling import BugsLexer, JagsLexer, StanLexer
+from pygments.lexers.idl import IDLLexer
+from pygments.lexers.algebra import MuPADLexer
+
+__all__ = []