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-rw-r--r--pygments/lexers/erlang.py24
1 files changed, 23 insertions, 1 deletions
diff --git a/pygments/lexers/erlang.py b/pygments/lexers/erlang.py
index c353a4dc..7838b3c5 100644
--- a/pygments/lexers/erlang.py
+++ b/pygments/lexers/erlang.py
@@ -82,7 +82,11 @@ class ErlangLexer(RegexLexer):
variable_re = r'(?:[A-Z_]\w*)'
- escape_re = r'(?:\\(?:[bdefnrstv\'"\\/]|[0-7][0-7]?[0-7]?|\^[a-zA-Z]))'
+ esc_char_re = r'[bdefnrstv\'"\\]'
+ esc_octal_re = r'[0-7][0-7]?[0-7]?'
+ esc_hex_re = r'(?:x[0-9a-fA-F]{2}|x\{[0-9a-fA-F]+\})'
+ esc_ctrl_re = r'\^[a-zA-Z]'
+ escape_re = r'(?:\\(?:'+esc_char_re+r'|'+esc_octal_re+r'|'+esc_hex_re+r'|'+esc_ctrl_re+r'))'
macro_re = r'(?:'+variable_re+r'|'+atom_re+r')'
@@ -112,6 +116,13 @@ class ErlangLexer(RegexLexer):
(r'\?'+macro_re, Name.Constant),
(r'\$(?:'+escape_re+r'|\\[ %]|[^\\])', String.Char),
(r'#'+atom_re+r'(:?\.'+atom_re+r')?', Name.Label),
+
+ # Erlang script shebang
+ (r'\A#!.+\n', Comment.Hashbang),
+
+ # EEP 43: Maps
+ # http://www.erlang.org/eeps/eep-0043.html
+ (r'#\{', Punctuation, 'map_key'),
],
'string': [
(escape_re, String.Escape),
@@ -127,6 +138,17 @@ class ErlangLexer(RegexLexer):
bygroups(Name.Entity, Text, Punctuation, Name.Label), '#pop'),
(atom_re, Name.Entity, '#pop'),
],
+ 'map_key': [
+ include('root'),
+ (r'=>', Punctuation, 'map_val'),
+ (r':=', Punctuation, 'map_val'),
+ (r'\}', Punctuation, '#pop'),
+ ],
+ 'map_val': [
+ include('root'),
+ (r',', Punctuation, '#pop'),
+ (r'(?=\})', Punctuation, '#pop'),
+ ],
}