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/diff.lua b/lexlua/diff.lua
index 19c110938..2b3b171f1 100644
--- a/lexlua/diff.lua
+++ b/lexlua/diff.lua
@@ -10,14 +10,14 @@ local lex = lexer.new('diff', {lex_by_line = true})
 -- Text, separators, and file headers.
 lex:add_rule('index', token(lexer.COMMENT, 'Index: ' * lexer.any^0 * -1))
 lex:add_rule('separator', token(lexer.COMMENT, ('---' + P('*')^4 + P('=')^1) *
-                                               lexer.space^0 * -1))
+  lexer.space^0 * -1))
 lex:add_rule('header', token('header', (P('*** ') + '--- ' + '+++ ') *
-                                       lexer.any^1))
+  lexer.any^1))
 lex:add_style('header', lexer.STYLE_COMMENT)
 
 -- Location.
 lex:add_rule('location', token(lexer.NUMBER, ('@@' + lexer.digit^1 + '****') *
-                                             lexer.any^1))
+  lexer.any^1))
 
 -- Additions, deletions, and changes.
 lex:add_rule('addition', token('addition', S('>+') * lexer.any^0))