Add syntax files for sublime text

contrib/SublimeTextPackage/Apfl.sublime-syntax

@@ -0,0 +1,37 @@
+%YAML 1.2
+---
+name: Apfl
+
+file_extensions: ["apfl"]
+
+scope: source.apfl
+
+contexts:
+  main:
+    - match: '"'
+      push: string
+    - match: "#.*$"
+      scope: comment.line.number-sign.apfl
+    - match: "-?[0-9][0-9]*(\\.[0-9]+)?"
+      scope: constant.numeric.value.apfl
+    - match: "\\b(if|while|k?each|for|loop)\\b"
+      scope: keyword.control.apfl
+    - match: "\\b(true|false)\\b"
+      scope: constant.language.boolean.apfl
+    - match: "\\b(nil)\\b"
+      scope: constant.language.null.apfl
+    - match: "((?:-[^>0-9]|[^\\s()\\[\\]\\{\\}~\\.@;\\\\,?'#:\"a-zA-Z0-9]=[^\\s()\\[\\]\\{\\}~\\.@;\\\\,?'#:\"a-zA-Z0-9]*|[^\\s()\\[\\]\\{\\}~\\.@;\\\\,?'#:\"=])+)\\s*:?=\\s*\\{"
+      captures:
+        1: entity.name.function.apfl
+    - match: "(-[^>0-9]|[^\\s()\\[\\]\\{\\}~\\.@;\\\\,?'#:\"a-zA-Z0-9]=[^\\s()\\[\\]\\{\\}~\\.@;\\\\,?'#:\"a-zA-Z0-9]*|[^\\s()\\[\\]\\{\\}~\\.@;\\\\,?'#:\"=])+"
+      scope: meta.generic-name.apfl
+    - match: "'(-[^\\s()\\[\\]\\{\\}~\\.@;\\\\,?'#:\">0-9]|[^\\s()\\[\\]\\{\\}~\\.@;\\\\,?'#:\"a-zA-Z0-9]=[^\\s()\\[\\]\\{\\}~\\.@;\\\\,?'#:\"a-zA-Z0-9]*|[^\\s()\\[\\]\\{\\}~\\.@;\\\\,?'#:\"=])+"
+      scope: string.apfl
+  string:
+    - meta_scope: string.quoted.double.apfl
+    - match: "\\\\[xX][0-9a-fA-F]{2}"
+      scope: constant.character.escape.apfl
+    - match: \\.
+      scope: constant.character.escape.apfl
+    - match: '"'
+      pop: true

contrib/SublimeTextPackage/ApflTest.sublime-syntax

@@ -0,0 +1,15 @@
+%YAML 1.2
+---
+name: Apfl Test
+
+file_extensions: ["at"]
+
+scope: source.apfl-test
+
+contexts:
+  main:
+    - match: "^===== script =====.*$"
+      push: Packages/Apfl/Apfl.sublime-syntax
+      with_prototype:
+        - match: "^====="
+          pop: true

contrib/SublimeTextPackage/Default.sublime-keymap

@@ -0,0 +1,8 @@
+[
+    { "keys": ["'"], "command": "insert_snippet", "args": {"contents": "'"}, "context":
+        [
+            { "key": "setting.auto_match_enabled", "operator": "equal", "operand": true },
+            { "key": "selector", "operator": "equal", "operand": "source.apfl", "match_all": true}
+        ]
+    }
+]