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/pure.lua b/lexlua/pure.lua
index db75233b7..5e8f04aa9 100644
--- a/lexlua/pure.lua
+++ b/lexlua/pure.lua
@@ -11,8 +11,8 @@ local lex = lexer.new('pure')
 lex:add_rule('whitespace', token(lexer.WHITESPACE, lexer.space^1))
 
 -- Comments.
-local line_comment = '//' * lexer.nonnewline^0
-local block_comment = '/*' * (lexer.any - '*/')^0 * P('*/')^-1
+local line_comment = lexer.to_eol('//')
+local block_comment = lexer.range('/*', '*/')
 lex:add_rule('comment', token(lexer.COMMENT, line_comment + block_comment))
 
 -- Pragmas.
@@ -45,6 +45,6 @@ lex:add_rule('operator', token(lexer.OPERATOR, dots + punct))
 lex:add_rule('identifier', token(lexer.IDENTIFIER, lexer.word))
 
 -- Strings.
-lex:add_rule('string', token(lexer.STRING, lexer.delimited_range('"', true)))
+lex:add_rule('string', token(lexer.STRING, lexer.range('"', true)))
 
 return lex