Reformatted Lua LPeg lexers and added new convenience functions and pattern.

`lexer.range()` replaces `lexer.delimited_range()` and `lexer.nested_pair()`.
`lexer.to_eol()` replaces `patt * lexer.nonnewline^0` constructs.
`lexer.number` replaces `lexer.float + lexer.integer`.
Also added unit tests for lexer functions.

1 files changed, 3 insertions, 3 deletions

diff --git a/lexlua/bibtex.lua b/lexlua/bibtex.lua
index 162156103..0eee5801d 100644
--- a/lexlua/bibtex.lua
+++ b/lexlua/bibtex.lua
@@ -22,9 +22,9 @@ lex:add_style('field', lexer.STYLE_CONSTANT)
 lex:add_rule('identifier', token(lexer.IDENTIFIER, lexer.word))
 
 -- Strings.
-lex:add_rule('string', token(lexer.STRING,
-                             lexer.delimited_range('"') +
-                             lexer.delimited_range('{}', false, true, true)))
+local dq_str = lexer.range('"')
+local br_str = lexer.range('{', '}', false, false, true)
+lex:add_rule('string', token(lexer.STRING, dq_str + br_str))
 
 -- Operators.
 lex:add_rule('operator', token(lexer.OPERATOR, S(',=')))