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, 5 insertions, 5 deletions

diff --git a/lexlua/vhdl.lua b/lexlua/vhdl.lua
index 938f738cb..7570de7f5 100644
--- a/lexlua/vhdl.lua
+++ b/lexlua/vhdl.lua
@@ -50,18 +50,18 @@ lex:add_rule('constant', token(lexer.CONSTANT, word_match[[
 
 -- Identifiers.
 lex:add_rule('identifier', token(lexer.IDENTIFIER, (lexer.alpha + "'") *
-                                                   (lexer.alnum + S("_'"))^1))
+  (lexer.alnum + S("_'"))^1))
 
 -- Strings.
-local sq_str = lexer.delimited_range("'", true, true)
-local dq_str = lexer.delimited_range('"', true)
+local sq_str = lexer.range("'", true, false)
+local dq_str = lexer.range('"', true)
 lex:add_rule('string', token(lexer.STRING, sq_str + dq_str))
 
 -- Comments.
-lex:add_rule('comment', token(lexer.COMMENT, '--' * lexer.nonnewline^0))
+lex:add_rule('comment', token(lexer.COMMENT, lexer.to_eol('--')))
 
 -- Numbers.
-lex:add_rule('number', token(lexer.NUMBER, lexer.float + lexer.integer))
+lex:add_rule('number', token(lexer.NUMBER, lexer.number))
 
 -- Operators.
 lex:add_rule('operator', token(lexer.OPERATOR, S('=/!:;<>+-/*%&|^~()')))