Update ElixirLexer and example_elixir.ex

Elixir syntax has evolved quite significantly since the initial lexer
was written. In this update I have rewritten most of the code to support
modern Elixir (as of v0.14.0-dev).

The example file has also been updated to give an quick overview
of most of the language constructs.

1 files changed, 33 insertions, 0 deletions

diff --git a/scripts/detect_missing_analyse_text.py b/scripts/detect_missing_analyse_text.py
new file mode 100644
index 00000000..ab58558e
--- /dev/null
+++ b/scripts/detect_missing_analyse_text.py
@@ -0,0 +1,33 @@
+from __future__ import print_function
+import sys
+
+from pygments.lexers import get_all_lexers, find_lexer_class
+from pygments.lexer import Lexer
+
+def main():
+    uses = {}
+
+    for name, aliases, filenames, mimetypes in get_all_lexers():
+        cls = find_lexer_class(name)
+        if not cls.aliases:
+            print(cls, "has no aliases")
+        for f in filenames:
+            if f not in uses:
+                uses[f] = []
+            uses[f].append(cls)
+
+    ret = 0
+    for k, v in uses.items():
+        if len(v) > 1:
+            #print "Multiple for", k, v
+            for i in v:
+                if i.analyse_text is None:
+                    print(i, "has a None analyse_text")
+                    ret |= 1
+                elif Lexer.analyse_text.__doc__ == i.analyse_text.__doc__:
+                    print(i, "needs analyse_text, multiple lexers for", k)
+                    ret |= 2
+    return ret
+
+if __name__ == '__main__':
+    sys.exit(main())