update lexers to orbitalquark/scintillua@b789dde

Rather than cherry pick patches from after 6.2 we will just grab
everything as is.

1 files changed, 13 insertions, 17 deletions

diff --git a/lua/lexers/diff.lua b/lua/lexers/diff.lua
index 4c87dc2..4f779bf 100644
--- a/lua/lexers/diff.lua
+++ b/lua/lexers/diff.lua
@@ -1,29 +1,25 @@
--- Copyright 2006-2022 Mitchell. See LICENSE.
+-- Copyright 2006-2024 Mitchell. See LICENSE.
 -- Diff LPeg lexer.
 
-local lexer = require('lexer')
-local token, word_match = lexer.token, lexer.word_match
+local lexer = lexer
+local to_eol, starts_line = lexer.to_eol, lexer.starts_line
 local P, S = lpeg.P, lpeg.S
 
-local lex = lexer.new('diff', {lex_by_line = true})
+local lex = lexer.new(..., {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))
-lex:add_rule('header', token('header', (P('*** ') + '--- ' + '+++ ') * lexer.any^1))
-lex:add_style('header', lexer.styles.comment)
+-- Text, file headers, and separators.
+lex:add_rule('index', lex:tag(lexer.COMMENT, to_eol(starts_line('Index: '))))
+lex:add_rule('header', lex:tag(lexer.HEADING, to_eol(starts_line(P('*** ') + '--- ' + '+++ '))))
+lex:add_rule('separator', lex:tag(lexer.COMMENT, to_eol(starts_line(P('---') + '****' + '='))))
 
 -- Location.
-lex:add_rule('location', token(lexer.NUMBER, ('@@' + lexer.dec_num + '****') * lexer.any^1))
+lex:add_rule('location', lex:tag(lexer.NUMBER, to_eol(starts_line('@@' + lexer.dec_num + '****'))))
 
 -- Additions, deletions, and changes.
-lex:add_rule('addition', token('addition', S('>+') * lexer.any^0))
-lex:add_style('addition', {fore = lexer.colors.green})
-lex:add_rule('deletion', token('deletion', S('<-') * lexer.any^0))
-lex:add_style('deletion', {fore = lexer.colors.red})
-lex:add_rule('change', token('change', '!' * lexer.any^0))
-lex:add_style('change', {fore = lexer.colors.yellow})
+lex:add_rule('addition', lex:tag('addition', to_eol(starts_line(S('>+')))))
+lex:add_rule('deletion', lex:tag('deletion', to_eol(starts_line(S('<-')))))
+lex:add_rule('change', lex:tag('change', to_eol(starts_line('!'))))
 
-lex:add_rule('any_line', token(lexer.DEFAULT, lexer.any^1))
+lex:add_rule('any_line', lex:tag(lexer.DEFAULT, lexer.to_eol()))
 
 return lex