Add sample syntax files

syntax_files/go.yaml

@@ -0,0 +1,51 @@
+filetype: go
+
+detect:
+  filename: "\\.go$"
+
+rules:
+    - statement: "\\b(break|case|continue|default|else|for|go|goto|if|range|return|switch)\\b"
+    - statement: "\\b(package|import|const|var|type|struct|func|go|defer|iota)\\b"
+    - statement: "[-+/*=<>!~%&|^]|:="
+    - identifier: "[a-zA-Z0-9]*\\("
+    - type: "\\b(u?int(8|16|32|64)?|float(32|64)|complex(64|128))\\b"
+    - type: "\\b(uintptr|byte|rune|string|interface|bool|map|chan|error)\\b"
+    - constant: "\\b(true|false|nil)\\b"
+    - statement: "(\\{|\\})"
+    - statement: "(\\(|\\))"
+    - statement: "(\\[|\\])"
+    - statement: "!"
+    - statement: ","
+    - constant.number: "\\b([0-9]+|0x[0-9a-fA-F]*)\\b"
+    - constant.specialChar: "([0-7]{3|x[A-Fa-f0-9]{2}|u[A-Fa-f0-9]{4}|U[A-Fa-f0-9]{8})"
+
+    - comment:
+        start: "//"
+        end: "$"
+        rules:
+            - todo: "(TODO|XXX|FIXME):?"
+
+    - comment:
+        start: "/\\*"
+        end: "\\*/"
+        rules: []
+
+    - constant.string:
+        start: "\""
+        end: "\""
+        rules:
+            - constant.specialChar: "\\\\."
+            - constant.specialChar: "%."
+
+    - constant.string:
+        start: "'"
+        end: "'"
+        rules:
+            - preproc: "..+"
+            - constant.specialChar: "%."
+            - constant.specialChar: "\\\\."
+
+    - constant.string:
+        start: "`"
+        end: "`"
+        rules: []