aboutsummaryrefslogtreecommitdiff
path: root/lexers/lua.lua
diff options
context:
space:
mode:
Diffstat (limited to 'lexers/lua.lua')
-rw-r--r--lexers/lua.lua190
1 files changed, 0 insertions, 190 deletions
diff --git a/lexers/lua.lua b/lexers/lua.lua
deleted file mode 100644
index fba4600..0000000
--- a/lexers/lua.lua
+++ /dev/null
@@ -1,190 +0,0 @@
--- Copyright 2006-2016 Mitchell mitchell.att.foicica.com. See LICENSE.
--- Lua LPeg lexer.
--- Original written by Peter Odding, 2007/04/04.
-
-local l = require('lexer')
-local token, word_match = l.token, l.word_match
-local P, R, S = lpeg.P, lpeg.R, lpeg.S
-
-local M = {_NAME = 'lua'}
-
--- Whitespace.
-local ws = token(l.WHITESPACE, l.space^1)
-
-local longstring = lpeg.Cmt('[' * lpeg.C(P('=')^0) * '[',
- function(input, index, eq)
- local _, e = input:find(']'..eq..']', index, true)
- return (e or #input) + 1
- end)
-
--- Comments.
-local line_comment = '--' * l.nonnewline^0
-local block_comment = '--' * longstring
-local comment = token(l.COMMENT, block_comment + line_comment)
-
--- Strings.
-local sq_str = l.delimited_range("'")
-local dq_str = l.delimited_range('"')
-local string = token(l.STRING, sq_str + dq_str) +
- token('longstring', longstring)
-
--- Numbers.
-local lua_integer = P('-')^-1 * (l.hex_num + l.dec_num)
-local number = token(l.NUMBER, l.float + lua_integer)
-
--- Keywords.
-local keyword = token(l.KEYWORD, word_match{
- 'and', 'break', 'do', 'else', 'elseif', 'end', 'false', 'for', 'function',
- 'goto', 'if', 'in', 'local', 'nil', 'not', 'or', 'repeat', 'return', 'then',
- 'true', 'until', 'while'
-})
-
--- Functions.
-local func = token(l.FUNCTION, word_match{
- 'assert', 'collectgarbage', 'dofile', 'error', 'getmetatable', 'ipairs',
- 'load', 'loadfile', 'next', 'pairs', 'pcall', 'print', 'rawequal', 'rawget',
- 'rawset', 'require', 'select', 'setmetatable', 'tonumber', 'tostring', 'type',
- 'xpcall',
- -- Added in 5.2.
- 'rawlen'
-})
-
--- Deprecated functions.
-local deprecated_func = token('deprecated_function', word_match{
- -- Deprecated in 5.2.
- 'getfenv', 'loadstring', 'module', 'setfenv', 'unpack'
-})
-
--- Constants.
-local constant = token(l.CONSTANT, word_match{
- '_G', '_VERSION',
- -- Added in 5.2.
- '_ENV'
-})
-
--- Libraries.
-local library = token('library', word_match({
- -- Coroutine.
- 'coroutine', 'coroutine.create', 'coroutine.resume', 'coroutine.running',
- 'coroutine.status', 'coroutine.wrap', 'coroutine.yield',
- -- Coroutine added in 5.3.
- 'coroutine.isyieldable',
- -- Module.
- 'package', 'package.cpath', 'package.loaded', 'package.loadlib',
- 'package.path', 'package.preload',
- -- Module added in 5.2.
- 'package.config', 'package.searchers', 'package.searchpath',
- -- UTF-8 added in 5.3.
- 'utf8', 'utf8.char', 'utf8.charpattern', 'utf8.codepoint', 'utf8.codes',
- 'utf8.len', 'utf8.offset',
- -- String.
- 'string', 'string.byte', 'string.char', 'string.dump', 'string.find',
- 'string.format', 'string.gmatch', 'string.gsub', 'string.len', 'string.lower',
- 'string.match', 'string.rep', 'string.reverse', 'string.sub', 'string.upper',
- -- String added in 5.3.
- 'string.pack', 'string.packsize', 'string.unpack',
- -- Table.
- 'table', 'table.concat', 'table.insert', 'table.remove', 'table.sort',
- -- Table added in 5.2.
- 'table.pack', 'table.unpack',
- -- Table added in 5.3.
- 'table.move',
- -- Math.
- 'math', 'math.abs', 'math.acos', 'math.asin', 'math.atan', 'math.ceil',
- 'math.cos', 'math.deg', 'math.exp', 'math.floor', 'math.fmod', 'math.huge',
- 'math.log', 'math.max', 'math.min', 'math.modf', 'math.pi', 'math.rad',
- 'math.random', 'math.randomseed', 'math.sin', 'math.sqrt', 'math.tan',
- -- Math added in 5.3.
- 'math.maxinteger', 'math.mininteger', 'math.tointeger', 'math.type',
- 'math.ult',
- -- IO.
- 'io', 'io.close', 'io.flush', 'io.input', 'io.lines', 'io.open', 'io.output',
- 'io.popen', 'io.read', 'io.stderr', 'io.stdin', 'io.stdout', 'io.tmpfile',
- 'io.type', 'io.write',
- -- OS.
- 'os', 'os.clock', 'os.date', 'os.difftime', 'os.execute', 'os.exit',
- 'os.getenv', 'os.remove', 'os.rename', 'os.setlocale', 'os.time',
- 'os.tmpname',
- -- Debug.
- 'debug', 'debug.debug', 'debug.gethook', 'debug.getinfo', 'debug.getlocal',
- 'debug.getmetatable', 'debug.getregistry', 'debug.getupvalue',
- 'debug.sethook', 'debug.setlocal', 'debug.setmetatable', 'debug.setupvalue',
- 'debug.traceback',
- -- Debug added in 5.2.
- 'debug.getuservalue', 'debug.setuservalue', 'debug.upvalueid',
- 'debug.upvaluejoin',
-}, '.'))
-
--- Deprecated libraries.
-local deprecated_library = token('deprecated_library', word_match({
- -- Module deprecated in 5.2.
- 'package.loaders', 'package.seeall',
- -- Table deprecated in 5.2.
- 'table.maxn',
- -- Math deprecated in 5.2.
- 'math.log10',
- -- Math deprecated in 5.3.
- 'math.atan2', 'math.cosh', 'math.frexp', 'math.ldexp', 'math.pow',
- 'math.sinh', 'math.tanh',
- -- Bit32 deprecated in 5.3.
- 'bit32', 'bit32.arshift', 'bit32.band', 'bit32.bnot', 'bit32.bor',
- 'bit32.btest', 'bit32.extract', 'bit32.lrotate', 'bit32.lshift',
- 'bit32.replace', 'bit32.rrotate', 'bit32.rshift', 'bit32.xor',
- -- Debug deprecated in 5.2.
- 'debug.getfenv', 'debug.setfenv'
-}, '.'))
-
--- Identifiers.
-local identifier = token(l.IDENTIFIER, l.word)
-
--- Labels.
-local label = token(l.LABEL, '::' * l.word * '::')
-
--- Operators.
-local operator = token(l.OPERATOR, S('+-*/%^#=<>&|~;:,.{}[]()'))
-
-M._rules = {
- {'whitespace', ws},
- {'keyword', keyword},
- {'function', func + deprecated_func},
- {'constant', constant},
- {'library', library + deprecated_library},
- {'identifier', identifier},
- {'string', string},
- {'comment', comment},
- {'number', number},
- {'label', label},
- {'operator', operator},
-}
-
-M._tokenstyles = {
- longstring = l.STYLE_STRING,
- deprecated_function = l.STYLE_FUNCTION..',italics',
- library = l.STYLE_TYPE,
- deprecated_library = l.STYLE_TYPE..',italics'
-}
-
-local function fold_longcomment(text, pos, line, s, match)
- if match == '[' then
- if line:find('^%[=*%[', s) then return 1 end
- elseif match == ']' then
- if line:find('^%]=*%]', s) then return -1 end
- end
- return 0
-end
-
-M._foldsymbols = {
- _patterns = {'%l+', '[%({%)}]', '[%[%]]', '%-%-'},
- [l.KEYWORD] = {
- ['if'] = 1, ['do'] = 1, ['function'] = 1, ['end'] = -1, ['repeat'] = 1,
- ['until'] = -1
- },
- [l.COMMENT] = {
- ['['] = fold_longcomment, [']'] = fold_longcomment,
- ['--'] = l.fold_line_comments('--')
- },
- longstring = {['['] = 1, [']'] = -1},
- [l.OPERATOR] = {['('] = 1, ['{'] = 1, [')'] = -1, ['}'] = -1}
-}
-
-return M
You can read more about the author.