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-rw-r--r--lua/lexers/json.lua63
1 files changed, 28 insertions, 35 deletions
diff --git a/lua/lexers/json.lua b/lua/lexers/json.lua
index 6e7025d..10b6406 100644
--- a/lua/lexers/json.lua
+++ b/lua/lexers/json.lua
@@ -1,47 +1,40 @@
--- Copyright 2006-2017 Brian "Sir Alaran" Schott. See LICENSE.
+-- Copyright 2006-2022 Brian "Sir Alaran" Schott. See LICENSE.
-- JSON LPeg lexer.
-- Based off of lexer code by Mitchell.
-local l = require('lexer')
-local token, word_match = l.token, l.word_match
-local P, R, S = lpeg.P, lpeg.R, lpeg.S
+local lexer = require('lexer')
+local token, word_match = lexer.token, lexer.word_match
+local P, S = lpeg.P, lpeg.S
-local M = {_NAME = 'json'}
+local lex = lexer.new('json')
-- Whitespace.
-local ws = token(l.WHITESPACE, l.space^1)
-
--- Comments.
-local comment = token(l.COMMENT, '/*' * (l.any - '*/')^0 * P('*/')^-1)
+lex:add_rule('whitespace', token(lexer.WHITESPACE, lexer.space^1))
-- Strings.
-local sq_str = P('u')^-1 * l.delimited_range("'", true)
-local dq_str = P('U')^-1 * l.delimited_range('"', true)
-local string = token(l.STRING, sq_str + dq_str)
-
--- Numbers.
-local integer = S('+-')^-1 * l.digit^1 * S('Ll')^-1
-local number = token(l.NUMBER, l.float + integer)
+local sq_str = lexer.range("'", true)
+local dq_str = lexer.range('"', true)
+lex:add_rule('string', token(lexer.STRING, sq_str + dq_str))
-- Keywords.
-local keyword = token(l.KEYWORD, word_match{"true", "false", "null"})
+lex:add_rule('keyword', token(lexer.KEYWORD, word_match('true false null')))
+
+-- Comments.
+local line_comment = lexer.to_eol('//', true)
+local block_comment = lexer.range('/*', '*/')
+lex:add_rule('comment', token(lexer.COMMENT, line_comment + block_comment))
+
+-- Numbers.
+local integer = S('+-')^-1 * lexer.dec_num * S('Ll')^-1
+lex:add_rule('number', token(lexer.NUMBER, lexer.float + integer))
-- Operators.
-local operator = token(l.OPERATOR, S('[]{}:,'))
-
-M._rules = {
- {'whitespace', ws},
- {'comment', comment},
- {'string', string},
- {'number', number},
- {'keyword', keyword},
- {'operator', operator},
-}
-
-M._foldsymbols = {
- _patterns = {'[%[%]{}]', '/%*', '%*/'},
- [l.OPERATOR] = {['['] = 1, [']'] = -1, ['{'] = 1, ['}'] = -1},
- [l.COMMENT] = {['/*'] = 1, ['*/'] = -1}
-}
-
-return M
+lex:add_rule('operator', token(lexer.OPERATOR, S('[]{}:,')))
+
+-- Fold points.
+lex:add_fold_point(lexer.OPERATOR, '[', ']')
+lex:add_fold_point(lexer.OPERATOR, '{', '}')
+lex:add_fold_point(lexer.COMMENT, '/*', '*/')
+lex:add_fold_point(lexer.COMMENT, lexer.fold_consecutive_lines('//'))
+
+return lex