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-rw-r--r--lexlua/prolog.lua2
1 files changed, 1 insertions, 1 deletions
diff --git a/lexlua/prolog.lua b/lexlua/prolog.lua
index c65748311..d12b5709c 100644
--- a/lexlua/prolog.lua
+++ b/lexlua/prolog.lua
@@ -308,7 +308,7 @@ lex:add_rule('bif', token(lexer.FUNCTION, word_match(bifs[dialect]) * #(P'(')))
-- Numbers.
local decimal_group = S('+-')^-1 * (lexer.digit + '_')^1
local binary_number = '0b' * (S('01') + '_')^1
-local character_code = '0\'' * S('\\')^-1 * (lexer.print - lexer.space)
+local character_code = '0\'' * S('\\')^-1 * lexer.graph
local decimal_number = decimal_group * ('.' * decimal_group)^-1 *
('e' * decimal_group)^-1
local hexadecimal_number = '0x' * (lexer.xdigit + '_')^1