enh(angelscript) Improve heredocs, numbers, metadata blocks (#2724)

* Fixed problematic heredoc strings
* Fixed unhandled valid number formatting
* Added missing metadata block
* Added more Angelscript code to detect test case

Author: codecat

CHANGES.md

@@ -13,12 +13,14 @@ Language Improvements:
 - fix(javascript) Comments inside params should be highlighted (#2702) [Josh Goebel][]
 - fix(scala) Comments inside class header should be highlighted (#1559) [Josh Goebel][]
 - fix(c-like) Correctly highlight modifiers (`final`) in class declaration (#2696) [Josh Goebel][]
+- enh(angelscript) Improve heredocs, numbers, metadata blocks (#2724) [Melissa Geels][]
 
 [David Pine]: https://github.com/IEvangelist
 [Josh Goebel]: https://github.com/joshgoebel
 [Ryan Jonasson]: https://github.com/ryanjonasson
 [Philipp Engel]: https://github.com/interkosmos
 [Konrad Rudolph]: https://github.com/klmr
+[Melissa Geels]: https://github.com/codecat
 
 
 ## Version 10.2.1

src/languages/angelscript.js

@@ -48,6 +48,12 @@ export default function(hljs) {
         relevance: 0
       },
 
+      // """heredoc strings"""
+      {
+        className: 'string',
+        begin: '"""', end: '"""'
+      },
+
       { // "strings"
         className: 'string',
         begin: '"', end: '"',
@@ -56,15 +62,14 @@ export default function(hljs) {
         relevance: 0
       },
 
-      // """heredoc strings"""
-      {
-        className: 'string',
-        begin: '"""', end: '"""'
-      },
-
       hljs.C_LINE_COMMENT_MODE, // single-line comments
       hljs.C_BLOCK_COMMENT_MODE, // comment blocks
 
+      { // metadata
+        className: 'string',
+        begin: '^\\s*\\[', end: '\\]',
+      },
+
       { // interface or namespace declaration
         beginKeywords: 'interface namespace', end: '{',
         illegal: '[;.\\-]',
@@ -108,7 +113,7 @@ export default function(hljs) {
 
       { // numbers
         className: 'number',
-        begin: '(-?)(\\b0[xX][a-fA-F0-9]+|(\\b\\d+(\\.\\d*)?f?|\\.\\d+f?)([eE][-+]?\\d+f?)?)'
+        begin: '(-?)(\\b0[xXbBoOdD][a-fA-F0-9]+|(\\b\\d+(\\.\\d*)?f?|\\.\\d+f?)([eE][-+]?\\d+f?)?)'
       }
     ]
   };

test/detect/angelscript/default.txt

@@ -25,11 +25,13 @@ namespace MyApplication
             m_arr.insertLast(3.14159f);
             uint x = 0x7fff0000;
             int y = 9001;
+            uint z = 0b10101010;
         }
 
         int get_Thing() property { return m_thing; }
         void set_Thing(int x) property { m_thing = x; }
 
+        [Hook x=1 y=2]
         void DoSomething()
         {
             print("Something! " + 'stuff.');
@@ -54,3 +56,7 @@ void Main()
     SomeClass@ c = SomeClass();
     c.DoSomething();
 }
+
+string multilineString = """
+Hello world, "this is a test"!
+""";