Added PigLatin language identification.

Updated languages.yml to associate *.pig files with PigLatin.
Added pig script example to samples/.
Updated the samples.json with to account for new sample.

lib/linguist/languages.yml

@@ -1714,6 +1714,13 @@ Perl6:
   - .pl6
   - .pm6
 
+PigLatin:
+  type: programming
+  color: "#fcd7de"
+  lexer: Text only
+  extensions:
+  - .pig
+
 Pike:
   type: programming
   color: "#066ab2"

lib/linguist/samples.json

@@ -481,6 +481,9 @@
       ".p6",
       ".pm6"
     ],
+    "PigLatin": [
+      ".pig"
+    ],
     "Pike": [
       ".pike",
       ".pmod"
@@ -839,8 +842,8 @@
       "exception.zep.php"
     ]
   },
-  "tokens_total": 654479,
+  "tokens_total": 654509,
-  "languages_total": 898,
+  "languages_total": 899,
   "tokens": {
     "ABAP": {
       "*/**": 1,
@@ -55158,6 +55161,29 @@
       "<bar>": 1,
       "roleq": 1
     },
+    "PigLatin": {
+      "REGISTER": 1,
+      "SOME_JAR": 1,
+      ";": 4,
+      "A": 2,
+      "LOAD": 1,
+      "USING": 1,
+      "PigStorage": 1,
+      "(": 2,
+      ")": 2,
+      "AS": 1,
+      "name": 2,
+      "chararray": 1,
+      "age": 1,
+      "int": 1,
+      "-": 2,
+      "Load": 1,
+      "person": 1,
+      "B": 2,
+      "FOREACH": 1,
+      "generate": 1,
+      "DUMP": 1
+    },
     "Pike": {
       "#pike": 2,
       "__REAL_VERSION__": 2,
@@ -72665,6 +72691,7 @@
     "Pascal": 30,
     "Perl": 20690,
     "Perl6": 372,
+    "PigLatin": 30,
     "Pike": 1835,
     "Pod": 658,
     "PogoScript": 250,
@@ -72876,6 +72903,7 @@
     "Pascal": 1,
     "Perl": 17,
     "Perl6": 3,
+    "PigLatin": 1,
     "Pike": 2,
     "Pod": 1,
     "PogoScript": 1,
@@ -72949,5 +72977,5 @@
     "fish": 3,
     "wisp": 1
   },
-  "md5": "b7e3e6804093f11267b22f781f54de75"
+  "md5": "17cee34e914b3954bc81eacdef0b0ab8"
 }

samples/PigLatin/example.pig

@@ -0,0 +1,10 @@
+/**
+ * sample.pig
+ */
+
+REGISTER $SOME_JAR;
+
+A = LOAD 'person' USING PigStorage() AS (name:chararray, age:int); -- Load person
+B = FOREACH A generate name;
+DUMP B;
+