small updates

Author: joente

bin/things-prompt

@@ -71,7 +71,7 @@ class ThingsDBLexer(RegexLexer):
             # name constants
             (r'(FULL|USER|GRANT|CHANGE|JOIN|RUN|QUERY|'
              r'DEBUG|INFO|WARNING|ERROR|CRITICAL|'
-             r'NO_IDS|INT_MIN|INT_MAX)\b', Name.Constant),
+             r'NO_IDS|INT_MIN|INT_MAX|MATH_E|MATH_PI)\b', Name.Constant),
 
             # regular expressions
             (r'(/[^/\\]*(?:\\.[^/\\]*)*/i?)', String.Regex),
@@ -124,7 +124,8 @@ class ThingsDBLexer(RegexLexer):
              r'run|assert_err|auth_err|bad_data_err|cancelled_err|'
              r'rename_type|forbidden_err|lookup_err|max_quota_err|node_err|'
              r'num_arguments_err|operation_err|overflow_err|syntax_err|'
-             r'collection_info|type_err|value_err|zero_div_err)'
+             r'collection_info|type_err|value_err|zero_div_err|abs|ceil|cos|'
+             r'exp|floor|log10|log2|loge|pow|sin|sqrt|tan)'
              r'(\()',
              bygroups(Name.Function, Punctuation),
              'arguments'),
@@ -141,7 +142,7 @@ class ThingsDBLexer(RegexLexer):
             (r'\s+', Whitespace),
         ],
         'comments': [
-            (r'//(.*?)\n', Comment.Single),
+            (r'//(.*?)(\n|$)', Comment.Single),
             (r'/\*', Comment.Multiline, 'comment'),
         ],
         'comment': [
@@ -150,10 +151,6 @@ class ThingsDBLexer(RegexLexer):
             (r'\*/', Comment.Multiline, '#pop'),
             (r'[*/]', Comment.Multiline),
         ],
-        'tstringescape': [
-            (r'\{', String.Escape),
-            (r'\}', String.Escape),
-        ],
         'arguments': [
             include('expression'),
             (',', Punctuation),