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author最萌小汐 <sumneko@hotmail.com>2019-11-22 23:26:32 +0800
committer最萌小汐 <sumneko@hotmail.com>2019-11-22 23:26:32 +0800
commitd0ff66c9abe9d6abbca12fd811e0c3cb69c1033a (patch)
treebb34518d70b85de7656dbdbe958dfa221a3ff3b3 /script/src/parser
parent0a2c2ad15e1ec359171fb0dd4c72e57c5b66e9ba (diff)
downloadlua-language-server-d0ff66c9abe9d6abbca12fd811e0c3cb69c1033a.zip
整理一下目录结构
Diffstat (limited to 'script/src/parser')
-rw-r--r--script/src/parser/ast.lua1912
-rw-r--r--script/src/parser/calcline.lua93
-rw-r--r--script/src/parser/grammar.lua630
-rw-r--r--script/src/parser/init.lua9
-rw-r--r--script/src/parser/lines.lua187
-rw-r--r--script/src/parser/parse.lua41
-rw-r--r--script/src/parser/relabel.lua361
-rw-r--r--script/src/parser/split.lua9
8 files changed, 3242 insertions, 0 deletions
diff --git a/script/src/parser/ast.lua b/script/src/parser/ast.lua
new file mode 100644
index 00000000..38cd8576
--- /dev/null
+++ b/script/src/parser/ast.lua
@@ -0,0 +1,1912 @@
+local tonumber = tonumber
+local string_char = string.char
+local utf8_char = utf8.char
+local type = type
+local table = table
+
+local Errs
+local State
+local function pushError(err)
+ if err.finish < err.start then
+ err.finish = err.start
+ end
+ local last = Errs[#Errs]
+ if last then
+ if last.start <= err.start and last.finish >= err.finish then
+ return
+ end
+ end
+ err.level = err.level or 'error'
+ Errs[#Errs+1] = err
+ return err
+end
+
+-- goto 单独处理
+local RESERVED = {
+ ['and'] = true,
+ ['break'] = true,
+ ['do'] = true,
+ ['else'] = true,
+ ['elseif'] = true,
+ ['end'] = true,
+ ['false'] = true,
+ ['for'] = true,
+ ['function'] = true,
+ ['if'] = true,
+ ['in'] = true,
+ ['local'] = true,
+ ['nil'] = true,
+ ['not'] = true,
+ ['or'] = true,
+ ['repeat'] = true,
+ ['return'] = true,
+ ['then'] = true,
+ ['true'] = true,
+ ['until'] = true,
+ ['while'] = true,
+}
+
+local VersionOp = {
+ ['&'] = {'Lua 5.3', 'Lua 5.4'},
+ ['~'] = {'Lua 5.3', 'Lua 5.4'},
+ ['|'] = {'Lua 5.3', 'Lua 5.4'},
+ ['<<'] = {'Lua 5.3', 'Lua 5.4'},
+ ['>>'] = {'Lua 5.3', 'Lua 5.4'},
+ ['//'] = {'Lua 5.3', 'Lua 5.4'},
+}
+
+local function checkOpVersion(op, start)
+ local versions = VersionOp[op]
+ if not versions then
+ return
+ end
+ for i = 1, #versions do
+ if versions[i] == State.Version then
+ return
+ end
+ end
+ pushError {
+ type = 'UNSUPPORT_SYMBOL',
+ start = start,
+ finish = start + #op - 1,
+ version = versions,
+ info = {
+ version = State.Version,
+ }
+ }
+end
+
+local Exp
+
+local function expSplit(list, start, finish, level)
+ if start == finish then
+ return list[start]
+ end
+ local info = Exp[level]
+ if not info then
+ return
+ end
+ local func = info[1]
+ return func(list, start, finish, level)
+end
+
+local function binaryForward(list, start, finish, level)
+ local info = Exp[level]
+ for i = finish-1, start+2, -1 do
+ local op = list[i]
+ if info[op] then
+ local e1 = expSplit(list, start, i-2, level)
+ if not e1 then
+ goto CONTINUE
+ end
+ local e2 = expSplit(list, i+1, finish, level+1)
+ if not e2 then
+ goto CONTINUE
+ end
+ checkOpVersion(op, list[i-1])
+ return {
+ type = 'binary',
+ op = op,
+ start = e1.start,
+ finish = e2.finish,
+ [1] = e1,
+ [2] = e2,
+ }
+ end
+ ::CONTINUE::
+ end
+ return expSplit(list, start, finish, level+1)
+end
+
+local function binaryBackward(list, start, finish, level)
+ local info = Exp[level]
+ for i = start+2, finish-1 do
+ local op = list[i]
+ if info[op] then
+ local e1 = expSplit(list, start, i-2, level+1)
+ if not e1 then
+ goto CONTINUE
+ end
+ local e2 = expSplit(list, i+1, finish, level)
+ if not e2 then
+ goto CONTINUE
+ end
+ checkOpVersion(op, list[i-1])
+ return {
+ type = 'binary',
+ op = op,
+ start = e1.start,
+ finish = e2.finish,
+ [1] = e1,
+ [2] = e2,
+ }
+ end
+ ::CONTINUE::
+ end
+ return expSplit(list, start, finish, level+1)
+end
+
+local function unary(list, start, finish, level)
+ local info = Exp[level]
+ local op = list[start+1]
+ if info[op] then
+ local e1 = expSplit(list, start+2, finish, level)
+ if e1 then
+ checkOpVersion(op, list[start])
+ return {
+ type = 'unary',
+ op = op,
+ start = list[start],
+ finish = e1.finish,
+ [1] = e1,
+ }
+ end
+ end
+ return expSplit(list, start, finish, level+1)
+end
+
+local function checkMissEnd(start)
+ if not State.MissEndErr then
+ return
+ end
+ local err = State.MissEndErr
+ State.MissEndErr = nil
+ local _, finish = State.Lua:find('[%w_]+', start)
+ if not finish then
+ return
+ end
+ err.info.related = { start, finish }
+ pushError {
+ type = 'MISS_END',
+ start = start,
+ finish = finish,
+ }
+end
+
+Exp = {
+ {
+ ['or'] = true,
+ binaryForward,
+ },
+ {
+ ['and'] = true,
+ binaryForward,
+ },
+ {
+ ['<='] = true,
+ ['>='] = true,
+ ['<'] = true,
+ ['>'] = true,
+ ['~='] = true,
+ ['=='] = true,
+ binaryForward,
+ },
+ {
+ ['|'] = true,
+ binaryForward,
+ },
+ {
+ ['~'] = true,
+ binaryForward,
+ },
+ {
+ ['&'] = true,
+ binaryForward,
+ },
+ {
+ ['<<'] = true,
+ ['>>'] = true,
+ binaryForward,
+ },
+ {
+ ['..'] = true,
+ binaryBackward,
+ },
+ {
+ ['+'] = true,
+ ['-'] = true,
+ binaryForward,
+ },
+ {
+ ['*'] = true,
+ ['//'] = true,
+ ['/'] = true,
+ ['%'] = true,
+ binaryForward,
+ },
+ {
+ ['^'] = true,
+ binaryBackward,
+ },
+ {
+ ['not'] = true,
+ ['#'] = true,
+ ['~'] = true,
+ ['-'] = true,
+ unary,
+ },
+}
+
+local Defs = {
+ Nil = function (pos)
+ return {
+ type = 'nil',
+ start = pos,
+ finish = pos + 2,
+ }
+ end,
+ True = function (pos)
+ return {
+ type = 'boolean',
+ start = pos,
+ finish = pos + 3,
+ [1] = true,
+ }
+ end,
+ False = function (pos)
+ return {
+ type = 'boolean',
+ start = pos,
+ finish = pos + 4,
+ [1] = false,
+ }
+ end,
+ LongComment = function (beforeEq, afterEq, str, finish, missPos)
+ State.Comments[#State.Comments+1] = {
+ start = beforeEq,
+ finish = finish,
+ }
+ if missPos then
+ local endSymbol = ']' .. ('='):rep(afterEq-beforeEq) .. ']'
+ local s, _, w = str:find('(%][%=]*%])[%c%s]*$')
+ if s then
+ pushError {
+ type = 'ERR_LCOMMENT_END',
+ start = missPos - #str + s - 1,
+ finish = missPos - #str + s + #w - 2,
+ info = {
+ symbol = endSymbol,
+ },
+ fix = {
+ title = 'FIX_LCOMMENT_END',
+ {
+ start = missPos - #str + s - 1,
+ finish = missPos - #str + s + #w - 2,
+ text = endSymbol,
+ }
+ },
+ }
+ end
+ pushError {
+ type = 'MISS_SYMBOL',
+ start = missPos,
+ finish = missPos,
+ info = {
+ symbol = endSymbol,
+ },
+ fix = {
+ title = 'ADD_LCOMMENT_END',
+ {
+ start = missPos,
+ finish = missPos,
+ text = endSymbol,
+ }
+ },
+ }
+ end
+ end,
+ CLongComment = function (start1, finish1, start2, finish2)
+ pushError {
+ type = 'ERR_C_LONG_COMMENT',
+ start = start1,
+ finish = finish2 - 1,
+ fix = {
+ title = 'FIX_C_LONG_COMMENT',
+ {
+ start = start1,
+ finish = finish1 - 1,
+ text = '--[[',
+ },
+ {
+ start = start2,
+ finish = finish2 - 1,
+ text = '--]]'
+ },
+ }
+ }
+ end,
+ CCommentPrefix = function (start, finish)
+ pushError {
+ type = 'ERR_COMMENT_PREFIX',
+ start = start,
+ finish = finish - 1,
+ fix = {
+ title = 'FIX_COMMENT_PREFIX',
+ {
+ start = start,
+ finish = finish - 1,
+ text = '--',
+ },
+ }
+ }
+ return false
+ end,
+ String = function (start, quote, str, finish)
+ return {
+ type = 'string',
+ start = start,
+ finish = finish - 1,
+ [1] = str,
+ [2] = quote,
+ }
+ end,
+ LongString = function (beforeEq, afterEq, str, missPos)
+ if missPos then
+ local endSymbol = ']' .. ('='):rep(afterEq-beforeEq) .. ']'
+ local s, _, w = str:find('(%][%=]*%])[%c%s]*$')
+ if s then
+ pushError {
+ type = 'ERR_LSTRING_END',
+ start = missPos - #str + s - 1,
+ finish = missPos - #str + s + #w - 2,
+ info = {
+ symbol = endSymbol,
+ },
+ fix = {
+ title = 'FIX_LSTRING_END',
+ {
+ start = missPos - #str + s - 1,
+ finish = missPos - #str + s + #w - 2,
+ text = endSymbol,
+ }
+ },
+ }
+ end
+ pushError {
+ type = 'MISS_SYMBOL',
+ start = missPos,
+ finish = missPos,
+ info = {
+ symbol = endSymbol,
+ },
+ fix = {
+ title = 'ADD_LSTRING_END',
+ {
+ start = missPos,
+ finish = missPos,
+ text = endSymbol,
+ }
+ },
+ }
+ end
+ return '[' .. ('='):rep(afterEq-beforeEq) .. '[', str
+ end,
+ Char10 = function (char)
+ char = tonumber(char)
+ if not char or char < 0 or char > 255 then
+ return ''
+ end
+ return string_char(char)
+ end,
+ Char16 = function (pos, char)
+ if State.Version == 'Lua 5.1' then
+ pushError {
+ type = 'ERR_ESC',
+ start = pos-1,
+ finish = pos,
+ version = {'Lua 5.2', 'Lua 5.3', 'Lua 5.4', 'LuaJIT'},
+ info = {
+ version = State.Version,
+ }
+ }
+ return char
+ end
+ return string_char(tonumber(char, 16))
+ end,
+ CharUtf8 = function (pos, char)
+ if State.Version ~= 'Lua 5.3'
+ and State.Version ~= 'Lua 5.4'
+ and State.Version ~= 'LuaJIT'
+ then
+ pushError {
+ type = 'ERR_ESC',
+ start = pos-3,
+ finish = pos-2,
+ version = {'Lua 5.3', 'Lua 5.4', 'LuaJIT'},
+ info = {
+ version = State.Version,
+ }
+ }
+ return char
+ end
+ if #char == 0 then
+ pushError {
+ type = 'UTF8_SMALL',
+ start = pos-3,
+ finish = pos,
+ }
+ return ''
+ end
+ local v = tonumber(char, 16)
+ if not v then
+ for i = 1, #char do
+ if not tonumber(char:sub(i, i), 16) then
+ pushError {
+ type = 'MUST_X16',
+ start = pos + i - 1,
+ finish = pos + i - 1,
+ }
+ end
+ end
+ return ''
+ end
+ if State.Version == 'Lua 5.4' then
+ if v < 0 or v > 0x7FFFFFFF then
+ pushError {
+ type = 'UTF8_MAX',
+ start = pos-3,
+ finish = pos+#char,
+ info = {
+ min = '00000000',
+ max = '7FFFFFFF',
+ }
+ }
+ end
+ else
+ if v < 0 or v > 0x10FFFF then
+ pushError {
+ type = 'UTF8_MAX',
+ start = pos-3,
+ finish = pos+#char,
+ version = v <= 0x7FFFFFFF and 'Lua 5.4' or nil,
+ info = {
+ min = '000000',
+ max = '10FFFF',
+ }
+ }
+ end
+ end
+ if v >= 0 and v <= 0x10FFFF then
+ return utf8_char(v)
+ end
+ return ''
+ end,
+ Number = function (start, number, finish)
+ local n = tonumber(number)
+ if n then
+ State.LastNumber = {
+ type = 'number',
+ start = start,
+ finish = finish - 1,
+ [1] = n,
+ }
+ return State.LastNumber
+ else
+ pushError {
+ type = 'MALFORMED_NUMBER',
+ start = start,
+ finish = finish - 1,
+ }
+ State.LastNumber = {
+ type = 'number',
+ start = start,
+ finish = finish - 1,
+ [1] = 0,
+ }
+ return State.LastNumber
+ end
+ end,
+ FFINumber = function (start, symbol)
+ if math.type(State.LastNumber[1]) == 'float' then
+ pushError {
+ type = 'UNKNOWN_SYMBOL',
+ start = start,
+ finish = start + #symbol - 1,
+ info = {
+ symbol = symbol,
+ }
+ }
+ State.LastNumber[1] = 0
+ return
+ end
+ if State.Version ~= 'LuaJIT' then
+ pushError {
+ type = 'UNSUPPORT_SYMBOL',
+ start = start,
+ finish = start + #symbol - 1,
+ version = 'LuaJIT',
+ info = {
+ version = State.Version,
+ }
+ }
+ State.LastNumber[1] = 0
+ end
+ end,
+ ImaginaryNumber = function (start, symbol)
+ if State.Version ~= 'LuaJIT' then
+ pushError {
+ type = 'UNSUPPORT_SYMBOL',
+ start = start,
+ finish = start + #symbol - 1,
+ version = 'LuaJIT',
+ info = {
+ version = State.Version,
+ }
+ }
+ end
+ State.LastNumber[1] = 0
+ end,
+ Name = function (start, str, finish)
+ local isKeyWord
+ if RESERVED[str] then
+ isKeyWord = true
+ elseif str == 'goto' then
+ if State.Version ~= 'Lua 5.1' and State.Version ~= 'LuaJIT' then
+ isKeyWord = true
+ end
+ end
+ if isKeyWord then
+ pushError {
+ type = 'KEYWORD',
+ start = start,
+ finish = finish - 1,
+ }
+ end
+ return {
+ type = 'name',
+ start = start,
+ finish = finish - 1,
+ [1] = str,
+ }
+ end,
+ Simple = function (first, ...)
+ if ... then
+ local obj = {
+ type = 'simple',
+ start = first.start,
+ first, ...,
+ }
+ local last = obj[#obj]
+ obj.finish = last.finish
+ return obj
+ elseif first == '' then
+ return nil
+ else
+ return first
+ end
+ end,
+ SimpleCall = function (simple)
+ if not simple then
+ return nil
+ end
+ if simple.type ~= 'simple' then
+ pushError {
+ type = 'EXP_IN_ACTION',
+ start = simple.start,
+ finish = simple.finish,
+ }
+ return simple
+ end
+ local last = simple[#simple]
+ if last.type == 'call' then
+ return simple
+ end
+ local colon = simple[#simple-1]
+ if colon and colon.type == ':' then
+ -- 型如 `obj:method`，将错误让给MISS_SYMBOL
+ return simple
+ end
+ pushError {
+ type = 'EXP_IN_ACTION',
+ start = simple[1].start,
+ finish = last.finish,
+ }
+ return simple
+ end,
+ Exp = function (first, ...)
+ if not ... then
+ return first
+ end
+ local list = {first, ...}
+ return expSplit(list, 1, #list, 1)
+ end,
+ Prefix = function (start, exp, finish)
+ exp.brackets = true
+ return exp
+ end,
+ Index = function (start, exp, finish)
+ return {
+ type = 'index',
+ start = start,
+ finish = finish - 1,
+ [1] = exp,
+ }
+ end,
+ Call = function (start, arg, finish)
+ if arg == nil then
+ return {
+ type = 'call',
+ start = start,
+ finish = finish - 1,
+ }
+ end
+ if arg.type == 'list' then
+ arg.type = 'call'
+ arg.start = start
+ arg.finish = finish - 1
+ return arg
+ end
+ local obj = {
+ type = 'call',
+ start = start,
+ finish = finish - 1,
+ [1] = arg,
+ }
+ return obj
+ end,
+ DOTS = function (start)
+ return {
+ type = '...',
+ start = start,
+ finish = start + 2,
+ }
+ end,
+ DotsAsArg = function (obj)
+ State.Dots[#State.Dots] = true
+ return obj
+ end,
+ DotsAsExp = function (obj)
+ if not State.Dots[#State.Dots] then
+ pushError {
+ type = 'UNEXPECT_DOTS',
+ start = obj.start,
+ finish = obj.finish,
+ }
+ end
+ return obj
+ end,
+ COLON = function (start)
+ return {
+ type = ':',
+ start = start,
+ finish = start,
+ }
+ end,
+ DOT = function (start)
+ return {
+ type = '.',
+ start = start,
+ finish = start,
+ }
+ end,
+ Function = function (start, argStart, arg, argFinish, ...)
+ local obj = {
+ type = 'function',
+ start = start,
+ arg = arg,
+ argStart = argStart - 1,
+ argFinish = argFinish,
+ ...
+ }
+ local max = #obj
+ obj.finish = obj[max] - 1
+ obj[max] = nil
+ if obj.argFinish > obj.finish then
+ obj.argFinish = obj.finish
+ end
+ checkMissEnd(start)
+ return obj
+ end,
+ NamedFunction = function (start, name, argStart, arg, argFinish, ...)
+ local obj = {
+ type = 'function',
+ start = start,
+ name = name,
+ arg = arg,
+ argStart = argStart - 1,
+ argFinish = argFinish,
+ ...
+ }
+ local max = #obj
+ obj.finish = obj[max] - 1
+ obj[max] = nil
+ if obj.argFinish > obj.finish then
+ obj.argFinish = obj.finish
+ end
+ checkMissEnd(start)
+ return obj
+ end,
+ LocalFunction = function (start, name, argStart, arg, argFinish, ...)
+ local obj = {
+ type = 'localfunction',
+ start = start,
+ name = name,
+ arg = arg,
+ argStart = argStart - 1,
+ argFinish = argFinish,
+ ...
+ }
+ local max = #obj
+ obj.finish = obj[max] - 1
+ obj[max] = nil
+ if obj.argFinish > obj.finish then
+ obj.argFinish = obj.finish
+ end
+
+ if name.type ~= 'name' then
+ pushError {
+ type = 'UNEXPECT_LFUNC_NAME',
+ start = name.start,
+ finish = name.finish,
+ }
+ end
+
+ checkMissEnd(start)
+ return obj
+ end,
+ Table = function (start, ...)
+ local args = {...}
+ local max = #args
+ local finish = args[max] - 1
+ local table = {
+ type = 'table',
+ start = start,
+ finish = finish
+ }
+ start = start + 1
+ local wantField = true
+ for i = 1, max-1 do
+ local arg = args[i]
+ local isField = type(arg) == 'table'
+ local isEmmy = isField and arg.type:sub(1, 4) == 'emmy'
+ if wantField and not isField then
+ pushError {
+ type = 'MISS_EXP',
+ start = start,
+ finish = arg - 1,
+ }
+ elseif not wantField and isField and not isEmmy then
+ pushError {
+ type = 'MISS_SEP_IN_TABLE',
+ start = start,
+ finish = arg.start-1,
+ }
+ end
+ if isField then
+ table[#table+1] = arg
+ if not isEmmy then
+ wantField = false
+ start = arg.finish + 1
+ end
+ else
+ wantField = true
+ start = arg
+ end
+ end
+ return table
+ end,
+ NewField = function (key, value)
+ return {
+ type = 'pair',
+ start = key.start,
+ finish = value.finish,
+ key, value,
+ }
+ end,
+ NewIndex = function (key, value)
+ return {
+ type = 'pair',
+ start = key.start,
+ finish = value.finish,
+ key, value,
+ }
+ end,
+ List = function (first, second, ...)
+ if second then
+ local list = {
+ type = 'list',
+ start = first.start,
+ first, second, ...
+ }
+ local last = list[#list]
+ list.finish = last.finish
+ return list
+ elseif type(first) == 'table' then
+ return first
+ else
+ return nil
+ end
+ end,
+ ArgList = function (...)
+ if ... == '' then
+ return nil
+ end
+ local args = table.pack(...)
+ local list = {}
+ local max = args.n
+ args.n = nil
+ local wantName = true
+ for i = 1, max do
+ local obj = args[i]
+ if type(obj) == 'number' then
+ if wantName then
+ pushError {
+ type = 'MISS_NAME',
+ start = obj,
+ finish = obj,
+ }
+ end
+ wantName = true
+ else
+ if not wantName then
+ pushError {
+ type = 'MISS_SYMBOL',
+ start = obj.start-1,
+ finish = obj.start-1,
+ info = {
+ symbol = ',',
+ }
+ }
+ end
+ wantName = false
+ list[#list+1] = obj
+ if obj.type == '...' then
+ if i < max then
+ local a = args[i+1]
+ local b = args[max]
+ pushError {
+ type = 'ARGS_AFTER_DOTS',
+ start = type(a) == 'number' and a or a.start,
+ finish = type(b) == 'number' and b or b.finish,
+ }
+ end
+ break
+ end
+ end
+ end
+ if wantName then
+ local last = args[max]
+ pushError {
+ type = 'MISS_NAME',
+ start = last+1,
+ finish = last+1,
+ }
+ end
+ if #list == 0 then
+ return nil
+ elseif #list == 1 then
+ return list[1]
+ else
+ list.type = 'list'
+ list.start = list[1].start
+ list.finish = list[#list].finish
+ return list
+ end
+ end,
+ CallArgList = function (start, ...)
+ local args = {...}
+ local max = #args
+ local finish = args[max] - 1
+ local exps = {
+ type = 'list',
+ start = start,
+ finish = finish,
+ }
+ local wantExp = true
+ for i = 1, max-1 do
+ local arg = args[i]
+ local isExp = type(arg) == 'table'
+ if wantExp and not isExp then
+ pushError {
+ type = 'MISS_EXP',
+ start = start,
+ finish = arg - 1,
+ }
+ elseif not wantExp and isExp then
+ pushError {
+ type = 'MISS_SYMBOL',
+ start = start,
+ finish = arg.start-1,
+ info = {
+ symbol = ',',
+ }
+ }
+ end
+ if isExp then
+ exps[#exps+1] = arg
+ wantExp = false
+ start = arg.finish + 1
+ else
+ wantExp = true
+ start = arg
+ end
+ end
+ if wantExp then
+ pushError {
+ type = 'MISS_EXP',
+ start = start,
+ finish = finish,
+ }
+ end
+ if #exps == 0 then
+ return nil
+ elseif #exps == 1 then
+ return exps[1]
+ else
+ return exps
+ end
+ end,
+ Nothing = function ()
+ return nil
+ end,
+ None = function()
+ return
+ end,
+ Skip = function ()
+ return false
+ end,
+ Set = function (keys, values)
+ return {
+ type = 'set',
+ keys, values,
+ }
+ end,
+ LocalTag = function (...)
+ if not ... or ... == '' then
+ return nil
+ end
+ local tags = {...}
+ for i, tag in ipairs(tags) do
+ if State.Version ~= 'Lua 5.4' then
+ pushError {
+ type = 'UNSUPPORT_SYMBOL',
+ start = tag.start,
+ finish = tag.finish,
+ version = 'Lua 5.4',
+ info = {
+ version = State.Version,
+ }
+ }
+ elseif tag[1] ~= 'const' and tag[1] ~= 'close' then
+ pushError {
+ type = 'UNKNOWN_TAG',
+ start = tag.start,
+ finish = tag.finish,
+ info = {
+ tag = tag[1],
+ }
+ }
+ elseif i > 1 then
+ pushError {
+ type = 'MULTI_TAG',
+ start = tag.start,
+ finish = tag.finish,
+ info = {
+ tag = tag[1],
+ }
+ }
+ end
+ end
+ return tags
+ end,
+ LocalName = function (name, tags)
+ name.tags = tags
+ return name
+ end,
+ Local = function (keys, values)
+ return {
+ type = 'local',
+ keys, values,
+ }
+ end,
+ DoBody = function (...)
+ if ... == '' then
+ return {
+ type = 'do',
+ }
+ else
+ return {
+ type = 'do',
+ ...
+ }
+ end
+ end,
+ Do = function (start, action, finish)
+ action.start = start
+ action.finish = finish - 1
+ checkMissEnd(start)
+ return action
+ end,
+ Break = function (finish, ...)
+ if State.Break > 0 then
+ local breakChunk = {
+ type = 'break',
+ }
+ if not ... then
+ return breakChunk
+ end
+ local action = select(-1, ...)
+ if not action then
+ return breakChunk
+ end
+ if State.Version == 'Lua 5.1' or State.Version == 'LuaJIT' then
+ pushError {
+ type = 'ACTION_AFTER_BREAK',
+ start = finish - #'break',
+ finish = finish - 1,
+ }
+ end
+ return breakChunk, action
+ else
+ pushError {
+ type = 'BREAK_OUTSIDE',
+ start = finish - #'break',
+ finish = finish - 1,
+ }
+ if not ... then
+ return false
+ end
+ local action = select(-1, ...)
+ if not action then
+ return false
+ end
+ return action
+ end
+ end,
+ BreakStart = function ()
+ State.Break = State.Break + 1
+ end,
+ BreakEnd = function ()
+ State.Break = State.Break - 1
+ end,
+ Return = function (start, exp, finish)
+ if not finish then
+ finish = exp
+ exp = {
+ type = 'return',
+ start = start,
+ finish = finish - 1,
+ }
+ else
+ if exp.type == 'list' then
+ exp.type = 'return'
+ exp.start = start
+ exp.finish = finish - 1
+ else
+ exp = {
+ type = 'return',
+ start = start,
+ finish = finish - 1,
+ [1] = exp,
+ }
+ end
+ end
+ return exp
+ end,
+ Label = function (start, name, finish)
+ if State.Version == 'Lua 5.1' then
+ pushError {
+ type = 'UNSUPPORT_SYMBOL',
+ start = start,
+ finish = finish - 1,
+ version = {'Lua 5.2', 'Lua 5.3', 'Lua 5.4', 'LuaJIT'},
+ info = {
+ version = State.Version,
+ }
+ }
+ return false
+ end
+ name.type = 'label'
+ local labels = State.Label[#State.Label]
+ local str = name[1]
+ if labels[str] then
+ --pushError {
+ -- type = 'REDEFINE_LABEL',
+ -- start = name.start,
+ -- finish = name.finish,
+ -- info = {
+ -- label = str,
+ -- related = {labels[str].start, labels[str].finish},
+ -- }
+ --}
+ else
+ labels[str] = name
+ end
+ return name
+ end,
+ GoTo = function (start, name, finish)
+ if State.Version == 'Lua 5.1' then
+ pushError {
+ type = 'UNSUPPORT_SYMBOL',
+ start = start,
+ finish = finish - 1,
+ version = {'Lua 5.2', 'Lua 5.3', 'Lua 5.4', 'LuaJIT'},
+ info = {
+ version = State.Version,
+ }
+ }
+ return false
+ end
+ name.type = 'goto'
+ local labels = State.Label[#State.Label]
+ labels[#labels+1] = name
+ return name
+ end,
+ -- TODO 这里的检查不完整，但是完整的检查比较复杂，开销比较高
+ -- 不能jump到另一个局部变量的作用域
+ -- 函数会切断goto与label
+ -- 不能从block外jump到block内，但是可以从block内jump到block外
+ BlockStart = function ()
+ State.Label[#State.Label+1] = {}
+ State.Dots[#State.Dots+1] = false
+ end,
+ BlockEnd = function ()
+ local labels = State.Label[#State.Label]
+ State.Label[#State.Label] = nil
+ State.Dots[#State.Dots] = nil
+ for i = 1, #labels do
+ local name = labels[i]
+ local str = name[1]
+ if not labels[str] then
+ pushError {
+ type = 'NO_VISIBLE_LABEL',
+ start = name.start,
+ finish = name.finish,
+ info = {
+ label = str,
+ }
+ }
+ end
+ end
+ end,
+ IfBlock = function (exp, start, ...)
+ local obj = {
+ filter = exp,
+ start = start,
+ ...
+ }
+ local max = #obj
+ obj.finish = obj[max]
+ obj[max] = nil
+ return obj
+ end,
+ ElseIfBlock = function (exp, start, ...)
+ local obj = {
+ filter = exp,
+ start = start,
+ ...
+ }
+ local max = #obj
+ obj.finish = obj[max]
+ obj[max] = nil
+ return obj
+ end,
+ ElseBlock = function (start, ...)
+ local obj = {
+ start = start,
+ ...
+ }
+ local max = #obj
+ obj.finish = obj[max]
+ obj[max] = nil
+ return obj
+ end,
+ If = function (start, ...)
+ local obj = {
+ type = 'if',
+ start = start,
+ ...
+ }
+ local max = #obj
+ obj.finish = obj[max] - 1
+ obj[max] = nil
+ checkMissEnd(start)
+ return obj
+ end,
+ Loop = function (start, arg, min, max, step, ...)
+ local obj = {
+ type = 'loop',
+ start = start,
+ arg = arg,
+ min = min,
+ max = max,
+ step = step,
+ ...
+ }
+ local max = #obj
+ obj.finish = obj[max] - 1
+ obj[max] = nil
+ checkMissEnd(start)
+ return obj
+ end,
+ In = function (start, arg, exp, ...)
+ local obj = {
+ type = 'in',
+ start = start,
+ arg = arg,
+ exp = exp,
+ ...
+ }
+ local max = #obj
+ obj.finish = obj[max] - 1
+ obj[max] = nil
+ checkMissEnd(start)
+ return obj
+ end,
+ While = function (start, filter, ...)
+ local obj = {
+ type = 'while',
+ start = start,
+ filter = filter,
+ ...
+ }
+ local max = #obj
+ obj.finish = obj[max] - 1
+ obj[max] = nil
+ checkMissEnd(start)
+ return obj
+ end,
+ Repeat = function (start, ...)
+ local obj = {
+ type = 'repeat',
+ start = start,
+ ...
+ }
+ local max = #obj
+ obj.finish = obj[max] - 1
+ obj.filter = obj[max-1]
+ obj[max] = nil
+ obj[max-1] = nil
+ return obj
+ end,
+ Lua = function (...)
+ if ... == '' then
+ return {}
+ end
+ return {...}
+ end,
+
+ -- EmmyLua 支持
+ EmmyName = function (start, str)
+ return {
+ type = 'emmyName',
+ start = start,
+ finish = start + #str - 1,
+ [1] = str,
+ }
+ end,
+ DirtyEmmyName = function (pos)
+ pushError {
+ type = 'MISS_NAME',
+ level = 'warning',
+ start = pos,
+ finish = pos,
+ }
+ return {
+ type = 'emmyName',
+ start = pos-1,
+ finish = pos-1,
+ [1] = ''
+ }
+ end,
+ EmmyClass = function (class, startPos, extends)
+ if extends and extends[1] == '' then
+ extends.start = startPos
+ end
+ return {
+ type = 'emmyClass',
+ start = class.start,
+ finish = (extends or class).finish,
+ [1] = class,
+ [2] = extends,
+ }
+ end,
+ EmmyType = function (typeDef)
+ return typeDef
+ end,
+ EmmyCommonType = function (...)
+ local result = {
+ type = 'emmyType',
+ ...
+ }
+ for i = 1, #result // 2 do
+ local startPos = result[i * 2]
+ local emmyName = result[i * 2 + 1]
+ if emmyName[1] == '' then
+ emmyName.start = startPos
+ end
+ result[i + 1] = emmyName
+ end
+ for i = #result // 2 + 2, #result do
+ result[i] = nil
+ end
+ result.start = result[1].start
+ result.finish = result[#result].finish
+ return result
+ end,
+ EmmyArrayType = function (start, emmy, _, finish)
+ emmy.type = 'emmyArrayType'
+ emmy.start = start
+ emmy.finish = finish - 1
+ return emmy
+ end,
+ EmmyTableType = function (start, keyType, valueType, finish)
+ return {
+ type = 'emmyTableType',
+ start = start,
+ finish = finish - 1,
+ [1] = keyType,
+ [2] = valueType,
+ }
+ end,
+ EmmyFunctionType = function (start, args, returns, finish)
+ local result = {
+ start = start,
+ finish = finish - 1,
+ type = 'emmyFunctionType',
+ args = args,
+ returns = returns,
+ }
+ return result
+ end,
+ EmmyFunctionRtns = function (...)
+ return {...}
+ end,
+ EmmyFunctionArgs = function (...)
+ local args = {...}
+ args[#args] = nil
+ return args
+ end,
+ EmmyAlias = function (name, emmyName, ...)
+ return {
+ type = 'emmyAlias',
+ start = name.start,
+ finish = emmyName.finish,
+ name,
+ emmyName,
+ ...
+ }
+ end,
+ EmmyParam = function (argName, emmyName, option, ...)
+ local emmy = {
+ type = 'emmyParam',
+ option = option,
+ argName,
+ emmyName,
+ ...
+ }
+ emmy.start = emmy[1].start
+ emmy.finish = emmy[#emmy].finish
+ return emmy
+ end,
+ EmmyReturn = function (start, type, name, finish, option)
+ local emmy = {
+ type = 'emmyReturn',
+ option = option,
+ start = start,
+ finish = finish - 1,
+ [1] = type,
+ [2] = name,
+ }
+ return emmy
+ end,
+ EmmyField = function (access, fieldName, ...)
+ local obj = {
+ type = 'emmyField',
+ access, fieldName,
+ ...
+ }
+ obj.start = obj[2].start
+ obj.finish = obj[3].finish
+ return obj
+ end,
+ EmmyGenericBlock = function (genericName, parentName)
+ return {
+ start = genericName.start,
+ finish = parentName and parentName.finish or genericName.finish,
+ genericName,
+ parentName,
+ }
+ end,
+ EmmyGeneric = function (...)
+ local emmy = {
+ type = 'emmyGeneric',
+ ...
+ }
+ emmy.start = emmy[1].start
+ emmy.finish = emmy[#emmy].finish
+ return emmy
+ end,
+ EmmyVararg = function (typeName)
+ return {
+ type = 'emmyVararg',
+ start = typeName.start,
+ finish = typeName.finish,
+ typeName,
+ }
+ end,
+ EmmyLanguage = function (language)
+ return {
+ type = 'emmyLanguage',
+ start = language.start,
+ finish = language.finish,
+ language,
+ }
+ end,
+ EmmySee = function (start, className, methodName, finish)
+ return {
+ type = 'emmySee',
+ start = start,
+ finish = finish - 1,
+ className, methodName
+ }
+ end,
+ EmmyOverLoad = function (EmmyFunctionType)
+ EmmyFunctionType.type = 'emmyOverLoad'
+ return EmmyFunctionType
+ end,
+ EmmyIncomplete = function (emmyName)
+ emmyName.type = 'emmyIncomplete'
+ return emmyName
+ end,
+ EmmyComment = function (...)
+ local lines = {...}
+ for i = 2, #lines do
+ local line = lines[i]
+ if line:sub(1, 1) == '|' then
+ lines[i] = '\n' .. line:sub(2)
+ end
+ end
+ return {
+ type = 'emmyComment',
+ [1] = table.concat(lines, '\n'),
+ }
+ end,
+ EmmyOption = function (options)
+ if not options or options == '' then
+ return nil
+ end
+ local option = {}
+ for _, pair in ipairs(options) do
+ if pair.type == 'pair' then
+ local key = pair[1]
+ local value = pair[2]
+ if key.type == 'name' then
+ option[key[1]] = value[1]
+ end
+ end
+ end
+ return option
+ end,
+ EmmyTypeEnum = function (default, enum, comment)
+ enum.type = 'emmyEnum'
+ if default ~= '' then
+ enum.default = true
+ end
+ enum.comment = comment
+ return enum
+ end,
+
+ -- 捕获错误
+ UnknownSymbol = function (start, symbol)
+ pushError {
+ type = 'UNKNOWN_SYMBOL',
+ start = start,
+ finish = start + #symbol - 1,
+ info = {
+ symbol = symbol,
+ }
+ }
+ return
+ end,
+ UnknownAction = function (start, symbol)
+ pushError {
+ type = 'UNKNOWN_SYMBOL',
+ start = start,
+ finish = start + #symbol - 1,
+ info = {
+ symbol = symbol,
+ }
+ }
+ return false
+ end,
+ DirtyName = function (pos)
+ pushError {
+ type = 'MISS_NAME',
+ start = pos,
+ finish = pos,
+ }
+ return {
+ type = 'name',
+ start = pos-1,
+ finish = pos-1,
+ [1] = ''
+ }
+ end,
+ DirtyExp = function (pos)
+ pushError {
+ type = 'MISS_EXP',
+ start = pos,
+ finish = pos,
+ }
+ return {
+ type = 'name',
+ start = pos,
+ finish = pos,
+ [1] = ''
+ }
+ end,
+ MissExp = function (pos)
+ pushError {
+ type = 'MISS_EXP',
+ start = pos,
+ finish = pos,
+ }
+ end,
+ MissExponent = function (start, finish)
+ pushError {
+ type = 'MISS_EXPONENT',
+ start = start,
+ finish = finish - 1,
+ }
+ end,
+ MissQuote1 = function (pos)
+ pushError {
+ type = 'MISS_SYMBOL',
+ start = pos,
+ finish = pos,
+ info = {
+ symbol = '"'
+ }
+ }
+ end,
+ MissQuote2 = function (pos)
+ pushError {
+ type = 'MISS_SYMBOL',
+ start = pos,
+ finish = pos,
+ info = {
+ symbol = "'"
+ }
+ }
+ end,
+ MissEscX = function (pos)
+ pushError {
+ type = 'MISS_ESC_X',
+ start = pos-2,
+ finish = pos+1,
+ }
+ end,
+ MissTL = function (pos)
+ pushError {
+ type = 'MISS_SYMBOL',
+ start = pos,
+ finish = pos,
+ info = {
+ symbol = '{',
+ }
+ }
+ end,
+ MissTR = function (pos)
+ pushError {
+ type = 'MISS_SYMBOL',
+ start = pos,
+ finish = pos,
+ info = {
+ symbol = '}',
+ }
+ }
+ return pos + 1
+ end,
+ MissBR = function (pos)
+ pushError {
+ type = 'MISS_SYMBOL',
+ start = pos,
+ finish = pos,
+ info = {
+ symbol = ']',
+ }
+ }
+ return pos + 1
+ end,
+ MissPL = function (pos)
+ pushError {
+ type = 'MISS_SYMBOL',
+ start = pos,
+ finish = pos,
+ info = {
+ symbol = '(',
+ }
+ }
+ end,
+ DirtyPR = function (pos)
+ pushError {
+ type = 'MISS_SYMBOL',
+ start = pos,
+ finish = pos,
+ info = {
+ symbol = ')',
+ }
+ }
+ return pos + 1
+ end,
+ MissPR = function (pos)
+ pushError {
+ type = 'MISS_SYMBOL',
+ start = pos,
+ finish = pos,
+ info = {
+ symbol = ')',
+ }
+ }
+ end,
+ ErrEsc = function (pos)
+ pushError {
+ type = 'ERR_ESC',
+ start = pos-1,
+ finish = pos,
+ }
+ end,
+ MustX16 = function (pos, str)
+ pushError {
+ type = 'MUST_X16',
+ start = pos,
+ finish = pos + #str - 1,
+ }
+ end,
+ MissAssign = function (pos)
+ pushError {
+ type = 'MISS_SYMBOL',
+ start = pos,
+ finish = pos,
+ info = {
+ symbol = '=',
+ }
+ }
+ end,
+ MissTableSep = function (pos)
+ pushError {
+ type = 'MISS_SYMBOL',
+ start = pos,
+ finish = pos,
+ info = {
+ symbol = ','
+ }
+ }
+ end,
+ MissField = function (pos)
+ pushError {
+ type = 'MISS_FIELD',
+ start = pos,
+ finish = pos,
+ }
+ end,
+ MissMethod = function (pos)
+ pushError {
+ type = 'MISS_METHOD',
+ start = pos,
+ finish = pos,
+ }
+ end,
+ MissLabel = function (pos)
+ pushError {
+ type = 'MISS_SYMBOL',
+ start = pos,
+ finish = pos,
+ info = {
+ symbol = '::',
+ }
+ }
+ end,
+ MissEnd = function (pos)
+ State.MissEndErr = pushError {
+ type = 'MISS_SYMBOL',
+ start = pos,
+ finish = pos,
+ info = {
+ symbol = 'end',
+ }
+ }
+ end,
+ MissDo = function (pos)
+ pushError {
+ type = 'MISS_SYMBOL',
+ start = pos,
+ finish = pos,
+ info = {
+ symbol = 'do',
+ }
+ }
+ end,
+ MissComma = function (pos)
+ pushError {
+ type = 'MISS_SYMBOL',
+ start = pos,
+ finish = pos,
+ info = {
+ symbol = ',',
+ }
+ }
+ end,
+ MissIn = function (pos)
+ pushError {
+ type = 'MISS_SYMBOL',
+ start = pos,
+ finish = pos,
+ info = {
+ symbol = 'in',
+ }
+ }
+ end,
+ MissUntil = function (pos)
+ pushError {
+ type = 'MISS_SYMBOL',
+ start = pos,
+ finish = pos,
+ info = {
+ symbol = 'until',
+ }
+ }
+ end,
+ MissThen = function (pos)
+ pushError {
+ type = 'MISS_SYMBOL',
+ start = pos,
+ finish = pos,
+ info = {
+ symbol = 'then',
+ }
+ }
+ end,
+ ExpInAction = function (start, exp, finish)
+ pushError {
+ type = 'EXP_IN_ACTION',
+ start = start,
+ finish = finish - 1,
+ }
+ return exp
+ end,
+ AfterReturn = function (rtn, ...)
+ if not ... then
+ return rtn
+ end
+ local action = select(-1, ...)
+ if not action then
+ return rtn
+ end
+ pushError {
+ type = 'ACTION_AFTER_RETURN',
+ start = rtn.start,
+ finish = rtn.finish,
+ }
+ return rtn, action
+ end,
+ MissIf = function (start, block)
+ pushError {
+ type = 'MISS_SYMBOL',
+ start = start,
+ finish = start,
+ info = {
+ symbol = 'if',
+ }
+ }
+ return block
+ end,
+ MissGT = function (start)
+ pushError {
+ type = 'MISS_SYMBOL',
+ start = start,
+ finish = start,
+ info = {
+ symbol = '>'
+ }
+ }
+ end,
+ ErrAssign = function (start, finish)
+ pushError {
+ type = 'ERR_ASSIGN_AS_EQ',
+ start = start,
+ finish = finish - 1,
+ fix = {
+ title = 'FIX_ASSIGN_AS_EQ',
+ {
+ start = start,
+ finish = finish - 1,
+ text = '=',
+ }
+ }
+ }
+ end,
+ ErrEQ = function (start, finish)
+ pushError {
+ type = 'ERR_EQ_AS_ASSIGN',
+ start = start,
+ finish = finish - 1,
+ fix = {
+ title = 'FIX_EQ_AS_ASSIGN',
+ {
+ start = start,
+ finish = finish - 1,
+ text = '==',
+ }
+ }
+ }
+ return '=='
+ end,
+ ErrUEQ = function (start, finish)
+ pushError {
+ type = 'ERR_UEQ',
+ start = start,
+ finish = finish - 1,
+ fix = {
+ title = 'FIX_UEQ',
+ {
+ start = start,
+ finish = finish - 1,
+ text = '~=',
+ }
+ }
+ }
+ return '=='
+ end,
+ ErrThen = function (start, finish)
+ pushError {
+ type = 'ERR_THEN_AS_DO',
+ start = start,
+ finish = finish - 1,
+ fix = {
+ title = 'FIX_THEN_AS_DO',
+ {
+ start = start,
+ finish = finish - 1,
+ text = 'then',
+ }
+ }
+ }
+ end,
+ ErrDo = function (start, finish)
+ pushError {
+ type = 'ERR_DO_AS_THEN',
+ start = start,
+ finish = finish - 1,
+ fix = {
+ title = 'FIX_DO_AS_THEN',
+ {
+ start = start,
+ finish = finish - 1,
+ text = 'do',
+ }
+ }
+ }
+ end,
+}
+
+local function init(state, errs)
+ State = state
+ Errs = errs
+end
+
+return {
+ defs = Defs,
+ init = init,
+}
diff --git a/script/src/parser/calcline.lua b/script/src/parser/calcline.lua
new file mode 100644
index 00000000..26f475d9
--- /dev/null
+++ b/script/src/parser/calcline.lua
@@ -0,0 +1,93 @@
+local m = require 'lpeglabel'
+
+local row
+local fl
+local NL = (m.P'\r\n' + m.S'\r\n') * m.Cp() / function (pos)
+ row = row + 1
+ fl = pos
+end
+local ROWCOL = (NL + m.P(1))^0
+local function rowcol(str, n)
+ row = 1
+ fl = 1
+ ROWCOL:match(str:sub(1, n))
+ local col = n - fl + 1
+ return row, col
+end
+
+local function rowcol_utf8(str, n)
+ row = 1
+ fl = 1
+ ROWCOL:match(str:sub(1, n))
+ return row, utf8.len(str, fl, n)
+end
+
+local function position(str, _row, _col)
+ local cur = 1
+ local row = 1
+ while true do
+ if row == _row then
+ return cur + _col - 1
+ elseif row > _row then
+ return cur - 1
+ end
+ local pos = str:find('[\r\n]', cur)
+ if not pos then
+ return #str
+ end
+ row = row + 1
+ if str:sub(pos, pos+1) == '\r\n' then
+ cur = pos + 2
+ else
+ cur = pos + 1
+ end
+ end
+end
+
+local function position_utf8(str, _row, _col)
+ local cur = 1
+ local row = 1
+ while true do
+ if row == _row then
+ return utf8.offset(str, _col, cur)
+ elseif row > _row then
+ return cur - 1
+ end
+ local pos = str:find('[\r\n]', cur)
+ if not pos then
+ return #str
+ end
+ row = row + 1
+ if str:sub(pos, pos+1) == '\r\n' then
+ cur = pos + 2
+ else
+ cur = pos + 1
+ end
+ end
+end
+
+local NL = m.P'\r\n' + m.S'\r\n'
+
+local function line(str, row)
+ local count = 0
+ local res
+ local LINE = m.Cmt((1 - NL)^0, function (_, _, c)
+ count = count + 1
+ if count == row then
+ res = c
+ return false
+ end
+ return true
+ end)
+ local MATCH = (LINE * NL)^0 * LINE
+ MATCH:match(str)
+ return res
+end
+
+return {
+ rowcol = rowcol,
+ rowcol_utf8 = rowcol_utf8,
+ position = position,
+ position_utf8 = position_utf8,
+ line = line,
+}
diff --git a/script/src/parser/grammar.lua b/script/src/parser/grammar.lua
new file mode 100644
index 00000000..568b8544
--- /dev/null
+++ b/script/src/parser/grammar.lua
@@ -0,0 +1,630 @@
+local re = require 'parser.relabel'
+local m = require 'lpeglabel'
+local ast = require 'parser.ast'
+
+local scriptBuf = ''
+local compiled = {}
+local parser
+local defs = ast.defs
+
+-- goto 可以作为名字，合法性之后处理
+local RESERVED = {
+ ['and'] = true,
+ ['break'] = true,
+ ['do'] = true,
+ ['else'] = true,
+ ['elseif'] = true,
+ ['end'] = true,
+ ['false'] = true,
+ ['for'] = true,
+ ['function'] = true,
+ ['if'] = true,
+ ['in'] = true,
+ ['local'] = true,
+ ['nil'] = true,
+ ['not'] = true,
+ ['or'] = true,
+ ['repeat'] = true,
+ ['return'] = true,
+ ['then'] = true,
+ ['true'] = true,
+ ['until'] = true,
+ ['while'] = true,
+}
+
+defs.nl = (m.P'\r\n' + m.S'\r\n')
+defs.s = m.S' \t'
+defs.S = - defs.s
+defs.ea = '\a'
+defs.eb = '\b'
+defs.ef = '\f'
+defs.en = '\n'
+defs.er = '\r'
+defs.et = '\t'
+defs.ev = '\v'
+defs['nil'] = m.Cp() / function () return nil end
+defs['false'] = m.Cp() / function () return false end
+defs.NotReserved = function (_, _, str)
+ if RESERVED[str] then
+ return false
+ end
+ return true
+end
+defs.Reserved = function (_, _, str)
+ if RESERVED[str] then
+ return true
+ end
+ return false
+end
+defs.None = function () end
+defs.np = m.Cp() / function (n) return n+1 end
+
+m.setmaxstack(1000)
+
+local eof = re.compile '!. / %{SYNTAX_ERROR}'
+
+local function grammar(tag)
+ return function (script)
+ scriptBuf = script .. '\r\n' .. scriptBuf
+ compiled[tag] = re.compile(scriptBuf, defs) * eof
+ end
+end
+
+local function errorpos(pos, err)
+ return {
+ type = 'UNKNOWN',
+ start = pos or 0,
+ finish = pos or 0,
+ err = err,
+ }
+end
+
+grammar 'Comment' [[
+Comment <- LongComment / '--' ShortComment
+LongComment <- ('--[' {} {:eq: '='* :} {} '['
+ {(!CommentClose .)*}
+ (CommentClose {} / {} {}))
+ -> LongComment
+ / (
+ {} '/*' {}
+ (!'*/' .)*
+ {} '*/' {}
+ )
+ -> CLongComment
+CommentClose <- ']' =eq ']'
+ShortComment <- (!%nl .)*
+]]
+
+grammar 'Sp' [[
+Sp <- (Comment / %nl / %s)*
+Sps <- (Comment / %nl / %s)+
+]]
+
+grammar 'Common' [[
+Word <- [a-zA-Z0-9_]
+Cut <- !Word
+X16 <- [a-fA-F0-9]
+Rest <- (!%nl .)*
+
+AND <- Sp {'and'} Cut
+BREAK <- Sp 'break' Cut
+DO <- Sp 'do' Cut
+ / Sp ({} 'then' Cut {}) -> ErrDo
+ELSE <- Sp 'else' Cut
+ELSEIF <- Sp 'elseif' Cut
+END <- Sp 'end' Cut
+FALSE <- Sp 'false' Cut
+FOR <- Sp 'for' Cut
+FUNCTION <- Sp 'function' Cut
+GOTO <- Sp 'goto' Cut
+IF <- Sp 'if' Cut
+IN <- Sp 'in' Cut
+LOCAL <- Sp 'local' Cut
+NIL <- Sp 'nil' Cut
+NOT <- Sp 'not' Cut
+OR <- Sp {'or'} Cut
+REPEAT <- Sp 'repeat' Cut
+RETURN <- Sp 'return' Cut
+THEN <- Sp 'then' Cut
+ / Sp ({} 'do' Cut {}) -> ErrThen
+TRUE <- Sp 'true' Cut
+UNTIL <- Sp 'until' Cut
+WHILE <- Sp 'while' Cut
+
+Esc <- '\' -> ''
+ EChar
+EChar <- 'a' -> ea
+ / 'b' -> eb
+ / 'f' -> ef
+ / 'n' -> en
+ / 'r' -> er
+ / 't' -> et
+ / 'v' -> ev
+ / '\'
+ / '"'
+ / "'"
+ / %nl
+ / ('z' (%nl / %s)*) -> ''
+ / ({} 'x' {X16 X16}) -> Char16
+ / ([0-9] [0-9]? [0-9]?) -> Char10
+ / ('u{' {} {Word*} '}') -> CharUtf8
+ -- 错误处理
+ / 'x' {} -> MissEscX
+ / 'u' !'{' {} -> MissTL
+ / 'u{' Word* !'}' {} -> MissTR
+ / {} -> ErrEsc
+
+BOR <- Sp {'|'}
+BXOR <- Sp {'~'} !'='
+BAND <- Sp {'&'}
+Bshift <- Sp {BshiftList}
+BshiftList <- '<<'
+ / '>>'
+Concat <- Sp {'..'}
+Adds <- Sp {AddsList}
+AddsList <- '+'
+ / '-'
+Muls <- Sp {MulsList}
+MulsList <- '*'
+ / '//'
+ / '/'
+ / '%'
+Unary <- Sp {} {UnaryList}
+UnaryList <- NOT
+ / '#'
+ / '-'
+ / '~' !'='
+POWER <- Sp {'^'}
+
+BinaryOp <- Sp {} {'or'} Cut
+ / Sp {} {'and'} Cut
+ / Sp {} {'<=' / '>=' / '<'!'<' / '>'!'>' / '~=' / '=='}
+ / Sp {} ({} '=' {}) -> ErrEQ
+ / Sp {} ({} '!=' {}) -> ErrUEQ
+ / Sp {} {'|'}
+ / Sp {} {'~'}
+ / Sp {} {'&'}
+ / Sp {} {'<<' / '>>'}
+ / Sp {} {'..'} !'.'
+ / Sp {} {'+' / '-'}
+ / Sp {} {'*' / '//' / '/' / '%'}
+ / Sp {} {'^'}
+UnaryOp <- Sp {} {'not' Cut / '#' / '~' !'=' / '-' !'-'}
+
+PL <- Sp '('
+PR <- Sp ')'
+BL <- Sp '[' !'[' !'='
+BR <- Sp ']'
+TL <- Sp '{'
+TR <- Sp '}'
+COMMA <- Sp ','
+SEMICOLON <- Sp ';'
+DOTS <- Sp ({} '...') -> DOTS
+DOT <- Sp ({} '.' !'.') -> DOT
+COLON <- Sp ({} ':' !':') -> COLON
+LABEL <- Sp '::'
+ASSIGN <- Sp '=' !'='
+AssignOrEQ <- Sp ({} '==' {}) -> ErrAssign
+ / Sp '='
+
+Nothing <- {} -> Nothing
+
+DirtyBR <- BR {} / {} -> MissBR
+DirtyTR <- TR {} / {} -> MissTR
+DirtyPR <- PR {} / {} -> DirtyPR
+DirtyLabel <- LABEL / {} -> MissLabel
+NeedPR <- PR / {} -> MissPR
+NeedEnd <- END / {} -> MissEnd
+NeedDo <- DO / {} -> MissDo
+NeedAssign <- ASSIGN / {} -> MissAssign
+NeedComma <- COMMA / {} -> MissComma
+NeedIn <- IN / {} -> MissIn
+NeedUntil <- UNTIL / {} -> MissUntil
+]]
+
+grammar 'Nil' [[
+Nil <- Sp ({} -> Nil) NIL
+]]
+
+grammar 'Boolean' [[
+Boolean <- Sp ({} -> True) TRUE
+ / Sp ({} -> False) FALSE
+]]
+
+grammar 'String' [[
+String <- Sp ({} StringDef {})
+ -> String
+StringDef <- {'"'}
+ {~(Esc / !%nl !'"' .)*~} -> 1
+ ('"' / {} -> MissQuote1)
+ / {"'"}
+ {~(Esc / !%nl !"'" .)*~} -> 1
+ ("'" / {} -> MissQuote2)
+ / ('[' {} {:eq: '='* :} {} '[' %nl?
+ {(!StringClose .)*} -> 1
+ (StringClose / {}))
+ -> LongString
+StringClose <- ']' =eq ']'
+]]
+
+grammar 'Number' [[
+Number <- Sp ({} {NumberDef} {}) -> Number
+ NumberSuffix?
+ ErrNumber?
+NumberDef <- Number16 / Number10
+NumberSuffix<- ({} {[uU]? [lL] [lL]}) -> FFINumber
+ / ({} {[iI]}) -> ImaginaryNumber
+ErrNumber <- ({} {([0-9a-zA-Z] / '.')+}) -> UnknownSymbol
+
+Number10 <- Float10 Float10Exp?
+ / Integer10 Float10? Float10Exp?
+Integer10 <- [0-9]+ ('.' [0-9]*)?
+Float10 <- '.' [0-9]+
+Float10Exp <- [eE] [+-]? [0-9]+
+ / ({} [eE] [+-]? {}) -> MissExponent
+
+Number16 <- '0' [xX] Float16 Float16Exp?
+ / '0' [xX] Integer16 Float16? Float16Exp?
+Integer16 <- X16+ ('.' X16*)?
+ / ({} {Word*}) -> MustX16
+Float16 <- '.' X16+
+ / '.' ({} {Word*}) -> MustX16
+Float16Exp <- [pP] [+-]? [0-9]+
+ / ({} [pP] [+-]? {}) -> MissExponent
+]]
+
+grammar 'Name' [[
+Name <- Sp ({} NameBody {})
+ -> Name
+NameBody <- {[a-zA-Z_] [a-zA-Z0-9_]*}
+FreeName <- Sp ({} {NameBody=>NotReserved} {})
+ -> Name
+MustName <- Name / DirtyName
+DirtyName <- {} -> DirtyName
+]]
+
+grammar 'Exp' [[
+Exp <- (UnUnit (BinaryOp (UnUnit / {} -> DirtyExp))*)
+ -> Exp
+UnUnit <- ExpUnit
+ / UnaryOp+ (ExpUnit / {} -> DirtyExp)
+ExpUnit <- Nil
+ / Boolean
+ / String
+ / Number
+ / DOTS -> DotsAsExp
+ / Table
+ / Function
+ / Simple
+
+Simple <- (Prefix (Sp Suffix)*)
+ -> Simple
+Prefix <- Sp ({} PL DirtyExp DirtyPR)
+ -> Prefix
+ / FreeName
+Index <- ({} BL DirtyExp DirtyBR) -> Index
+Suffix <- DOT Name / DOT {} -> MissField
+ / Method (!(Sp CallStart) {} -> MissPL)?
+ / ({} Table {}) -> Call
+ / ({} String {}) -> Call
+ / Index
+ / ({} PL CallArgList DirtyPR) -> Call
+Method <- COLON Name / COLON {} -> MissMethod
+CallStart <- PL
+ / TL
+ / '"'
+ / "'"
+ / '[' '='* '['
+
+DirtyExp <- Exp
+ / {} -> DirtyExp
+MaybeExp <- Exp / MissExp
+MissExp <- {} -> MissExp
+ExpList <- Sp (MaybeExp (COMMA (MaybeExp))*)
+ -> List
+MustExpList <- Sp (Exp (COMMA (MaybeExp))*)
+ -> List
+CallArgList <- Sp ({} (COMMA {} / Exp)+ {})
+ -> CallArgList
+ / %nil
+NameList <- (MustName (COMMA MustName)*)
+ -> List
+
+ArgList <- (DOTS -> DotsAsArg / Name / Sp {} COMMA)*
+ -> ArgList
+
+Table <- Sp ({} TL TableFields? DirtyTR)
+ -> Table
+TableFields <- (Emmy / TableSep {} / TableField)+
+TableSep <- COMMA / SEMICOLON
+TableField <- NewIndex / NewField / Exp
+NewIndex <- Sp (Index NeedAssign DirtyExp)
+ -> NewIndex
+NewField <- (MustName ASSIGN DirtyExp)
+ -> NewField
+
+Function <- Sp ({} FunctionBody {})
+ -> Function
+FuncArg <- PL {} ArgList {} NeedPR
+ / {} {} -> MissPL Nothing {}
+FunctionBody<- FUNCTION BlockStart FuncArg
+ (Emmy / !END Action)*
+ BlockEnd
+ NeedEnd
+
+BlockStart <- {} -> BlockStart
+BlockEnd <- {} -> BlockEnd
+
+-- 纯占位，修改了 `relabel.lua` 使重复定义不抛错
+Action <- !END .
+Set <- END
+Emmy <- '---@'
+]]
+
+grammar 'Action' [[
+Action <- Sp (CrtAction / UnkAction)
+CrtAction <- Semicolon
+ / Do
+ / Break
+ / Return
+ / Label
+ / GoTo
+ / If
+ / For
+ / While
+ / Repeat
+ / NamedFunction
+ / LocalFunction
+ / Local
+ / Set
+ / Call
+ / ExpInAction
+UnkAction <- ({} {Word+})
+ -> UnknownAction
+ / ({} '//' {} (LongComment / ShortComment))
+ -> CCommentPrefix
+ / ({} {. (!Sps !CrtAction .)*})
+ -> UnknownAction
+ExpInAction <- Sp ({} Exp {})
+ -> ExpInAction
+
+Semicolon <- SEMICOLON
+ -> Skip
+SimpleList <- (Simple (COMMA Simple)*)
+ -> List
+
+Do <- Sp ({} 'do' Cut DoBody NeedEnd {})
+ -> Do
+DoBody <- (Emmy / !END Action)*
+ -> DoBody
+
+Break <- BREAK ({} Semicolon* AfterBreak?)
+ -> Break
+AfterBreak <- Sp !END !UNTIL !ELSEIF !ELSE Action
+BreakStart <- {} -> BreakStart
+BreakEnd <- {} -> BreakEnd
+
+Return <- (ReturnBody Semicolon* AfterReturn?)
+ -> AfterReturn
+ReturnBody <- Sp ({} RETURN MustExpList? {})
+ -> Return
+AfterReturn <- Sp !END !UNTIL !ELSEIF !ELSE Action
+
+Label <- Sp ({} LABEL MustName DirtyLabel {}) -> Label
+
+GoTo <- Sp ({} GOTO MustName {}) -> GoTo
+
+If <- Sp ({} IfBody {})
+ -> If
+IfHead <- (IfPart -> IfBlock)
+ / ({} ElseIfPart -> ElseIfBlock)
+ -> MissIf
+ / ({} ElsePart -> ElseBlock)
+ -> MissIf
+IfBody <- IfHead
+ (ElseIfPart -> ElseIfBlock)*
+ (ElsePart -> ElseBlock)?
+ NeedEnd
+IfPart <- IF DirtyExp THEN
+ {} (Emmy / !ELSEIF !ELSE !END Action)* {}
+ / IF DirtyExp {}->MissThen
+ {} {}
+ElseIfPart <- ELSEIF DirtyExp THEN
+ {} (Emmy / !ELSE !ELSEIF !END Action)* {}
+ / ELSEIF DirtyExp {}->MissThen
+ {} {}
+ElsePart <- ELSE
+ {} (Emmy / !END Action)* {}
+
+For <- Loop / In
+ / FOR
+
+Loop <- Sp ({} LoopBody {})
+ -> Loop
+LoopBody <- FOR LoopStart LoopFinish LoopStep NeedDo
+ BreakStart
+ (Emmy / !END Action)*
+ BreakEnd
+ NeedEnd
+LoopStart <- MustName AssignOrEQ DirtyExp
+LoopFinish <- NeedComma DirtyExp
+LoopStep <- COMMA DirtyExp
+ / NeedComma Exp
+ / Nothing
+
+In <- Sp ({} InBody {})
+ -> In
+InBody <- FOR InNameList NeedIn ExpList NeedDo
+ BreakStart
+ (Emmy / !END Action)*
+ BreakEnd
+ NeedEnd
+InNameList <- &IN DirtyName
+ / NameList
+
+While <- Sp ({} WhileBody {})
+ -> While
+WhileBody <- WHILE DirtyExp NeedDo
+ BreakStart
+ (Emmy / !END Action)*
+ BreakEnd
+ NeedEnd
+
+Repeat <- Sp ({} RepeatBody {})
+ -> Repeat
+RepeatBody <- REPEAT
+ BreakStart
+ (Emmy / !UNTIL Action)*
+ BreakEnd
+ NeedUntil DirtyExp
+
+LocalTag <- (Sp '<' Sp MustName Sp LocalTagEnd)*
+ -> LocalTag
+LocalTagEnd <- '>' / {} -> MissGT
+Local <- (LOCAL LocalNameList (AssignOrEQ ExpList)?)
+ -> Local
+Set <- (SimpleList AssignOrEQ ExpList?)
+ -> Set
+LocalNameList
+ <- (LocalName (COMMA LocalName)*)
+ -> List
+LocalName <- (MustName LocalTag)
+ -> LocalName
+
+Call <- Simple
+ -> SimpleCall
+
+LocalFunction
+ <- Sp ({} LOCAL FunctionNamedBody {})
+ -> LocalFunction
+
+NamedFunction
+ <- Sp ({} FunctionNamedBody {})
+ -> NamedFunction
+FunctionNamedBody
+ <- FUNCTION FuncName BlockStart FuncArg
+ (Emmy / !END Action)*
+ BlockEnd
+ NeedEnd
+FuncName <- (MustName (DOT MustName)* FuncMethod?)
+ -> Simple
+FuncMethod <- COLON Name / COLON {} -> MissMethod
+
+-- 占位
+Emmy <- '---@'
+]]
+
+grammar 'Emmy' [[
+Emmy <- EmmyAction
+ / EmmyComments
+EmmyAction <- EmmySp '---' %s* '@' EmmyBody ShortComment
+EmmySp <- (!'---' Comment / %s / %nl)*
+EmmyComments <- EmmyComment+
+ -> EmmyComment
+EmmyComment <- EmmySp '---' %s* !'@' {(!%nl .)*}
+EmmyBody <- 'class' %s+ EmmyClass -> EmmyClass
+ / 'type' %s+ EmmyType -> EmmyType
+ / 'alias' %s+ EmmyAlias -> EmmyAlias
+ / 'param' %s+ EmmyParam -> EmmyParam
+ / 'return' %s+ EmmyReturn -> EmmyReturn
+ / 'field' %s+ EmmyField -> EmmyField
+ / 'generic' %s+ EmmyGeneric -> EmmyGeneric
+ / 'vararg' %s+ EmmyVararg -> EmmyVararg
+ / 'language' %s+ EmmyLanguage -> EmmyLanguage
+ / 'see' %s+ EmmySee -> EmmySee
+ / 'overload' %s+ EmmyOverLoad -> EmmyOverLoad
+ / EmmyIncomplete
+
+EmmyName <- ({} {[a-zA-Z_] [a-zA-Z0-9_]*})
+ -> EmmyName
+MustEmmyName <- EmmyName / DirtyEmmyName
+DirtyEmmyName <- {} -> DirtyEmmyName
+EmmyLongName <- ({} {(!%nl .)+})
+ -> EmmyName
+EmmyIncomplete <- MustEmmyName
+ -> EmmyIncomplete
+
+EmmyClass <- (MustEmmyName EmmyParentClass?)
+EmmyParentClass <- %s* {} ':' %s* MustEmmyName
+
+EmmyType <- EmmyFunctionType
+ / EmmyTableType
+ / EmmyArrayType
+ / EmmyCommonType
+EmmyCommonType <- EmmyTypeNames
+ -> EmmyCommonType
+EmmyTypeNames <- EmmyTypeName (%s* {} '|' %s* !String EmmyTypeName)*
+EmmyTypeName <- EmmyFunctionType
+ / EmmyTableType
+ / EmmyArrayType
+ / MustEmmyName
+EmmyTypeEnum <- %s* (%nl %s* '---')? '|' EmmyEnum
+ -> EmmyTypeEnum
+EmmyEnum <- %s* {'>'?} %s* String (EmmyEnumComment / (!%nl !'|' .)*)
+EmmyEnumComment <- %s* '#' %s* {(!%nl .)*}
+
+EmmyAlias <- MustEmmyName %s* EmmyType EmmyTypeEnum*
+
+EmmyParam <- MustEmmyName %s* EmmyType %s* EmmyOption %s* EmmyTypeEnum*
+EmmyOption <- Table?
+ -> EmmyOption
+
+EmmyReturn <- {} %nil %nil {} Table -> EmmyOption
+ / {} EmmyType (%s* EmmyName/%nil) {} EmmyOption
+
+EmmyField <- (EmmyFieldAccess MustEmmyName %s* EmmyType)
+EmmyFieldAccess <- ({'public'} Cut %s*)
+ / ({'protected'} Cut %s*)
+ / ({'private'} Cut %s*)
+ / {} -> 'public'
+
+EmmyGeneric <- EmmyGenericBlock
+ (%s* ',' %s* EmmyGenericBlock)*
+EmmyGenericBlock<- (MustEmmyName %s* (':' %s* EmmyType)?)
+ -> EmmyGenericBlock
+
+EmmyVararg <- EmmyType
+
+EmmyLanguage <- MustEmmyName
+
+EmmyArrayType <- ({} MustEmmyName -> EmmyCommonType {} '[' DirtyBR)
+ -> EmmyArrayType
+ / ({} PL EmmyCommonType DirtyPR '[' DirtyBR)
+ -> EmmyArrayType
+
+EmmyTableType <- ({} 'table' Cut '<' %s* EmmyType %s* ',' %s* EmmyType %s* '>' {})
+ -> EmmyTableType
+
+EmmyFunctionType<- ({} 'fun' Cut %s* EmmyFunctionArgs %s* EmmyFunctionRtns {})
+ -> EmmyFunctionType
+EmmyFunctionArgs<- ('(' %s* EmmyFunctionArg %s* (',' %s* EmmyFunctionArg %s*)* DirtyPR)
+ -> EmmyFunctionArgs
+ / '(' %nil DirtyPR -> None
+ / %nil
+EmmyFunctionRtns<- (':' %s* EmmyType (%s* ',' %s* EmmyType)*)
+ -> EmmyFunctionRtns
+ / %nil
+EmmyFunctionArg <- MustEmmyName %s* ':' %s* EmmyType
+
+EmmySee <- {} MustEmmyName %s* '#' %s* MustEmmyName {}
+EmmyOverLoad <- EmmyFunctionType
+]]
+
+grammar 'Lua' [[
+Lua <- Head?
+ (Emmy / Action)* -> Lua
+ BlockEnd
+ Sp
+Head <- '#' (!%nl .)*
+]]
+
+return function (self, lua, mode)
+ local gram = compiled[mode] or compiled['Lua']
+ local r, _, pos = gram:match(lua)
+ if not r then
+ local err = errorpos(pos)
+ return nil, err
+ end
+
+ return r
+end
diff --git a/script/src/parser/init.lua b/script/src/parser/init.lua
new file mode 100644
index 00000000..30596dbe
--- /dev/null
+++ b/script/src/parser/init.lua
@@ -0,0 +1,9 @@
+local api = {
+ grammar = require 'parser.grammar',
+ parse = require 'parser.parse',
+ split = require 'parser.split',
+ calcline = require 'parser.calcline',
+ lines = require 'parser.lines',
+}
+
+return api
diff --git a/script/src/parser/lines.lua b/script/src/parser/lines.lua
new file mode 100644
index 00000000..f2f076e1
--- /dev/null
+++ b/script/src/parser/lines.lua
@@ -0,0 +1,187 @@
+local m = require 'lpeglabel'
+
+local function utf8_len(buf, start, finish)
+ local len, pos = utf8.len(buf, start, finish)
+ if len then
+ return len
+ end
+ return 1 + utf8_len(buf, start, pos-1) + utf8_len(buf, pos+1, finish)
+end
+
+local function Line(start, line, finish)
+ line.start = start
+ line.finish = finish - 1
+ return line
+end
+
+local function Space(...)
+ local line = {...}
+ local sp = 0
+ local tab = 0
+ for i = 1, #line do
+ if line[i] == ' ' then
+ sp = sp + 1
+ elseif line[i] == '\t' then
+ tab = tab + 1
+ end
+ line[i] = nil
+ end
+ line.sp = sp
+ line.tab = tab
+ return line
+end
+
+local parser = m.P{
+'Lines',
+Lines = m.Ct(m.V'Line'^0 * m.V'LastLine'),
+Line = m.Cp() * m.V'Indent' * (1 - m.V'Nl')^0 * m.Cp() * m.V'Nl' / Line,
+LastLine= m.Cp() * m.V'Indent' * (1 - m.V'Nl')^0 * m.Cp() / Line,
+Nl = m.P'\r\n' + m.S'\r\n',
+Indent = m.C(m.S' \t')^0 / Space,
+}
+
+local mt = {}
+mt.__index = mt
+
+function mt:position(row, col, code)
+ if row < 1 then
+ return 1
+ end
+ code = code or self.code
+ if row > #self then
+ if code == 'utf8' then
+ return utf8_len(self.buf) + 1
+ else
+ return #self.buf + 1
+ end
+ end
+ local line = self[row]
+ local next_line = self[row+1]
+ local start = line.start
+ local finish
+ if next_line then
+ finish = next_line.start - 1
+ else
+ finish = #self.buf + 1
+ end
+ local pos
+ if code == 'utf8' then
+ pos = utf8.offset(self.buf, col, start) or finish
+ else
+ pos = start + col - 1
+ end
+ if pos < start then
+ pos = start
+ elseif pos > finish then
+ pos = finish
+ end
+ return pos
+end
+
+local function isCharByte(byte)
+ if not byte then
+ return false
+ end
+ -- [0-9]
+ if byte >= 48 and byte <= 57 then
+ return true
+ end
+ -- [A-Z]
+ if byte >= 65 and byte <= 90 then
+ return true
+ end
+ -- [a-z]
+ if byte >= 97 and byte <= 122 then
+ return true
+ end
+ -- <utf8>
+ if byte >= 128 then
+ return true
+ end
+ return false
+end
+
+function mt:positionAsChar(row, col, code)
+ local pos = self:position(row, col, code)
+ if isCharByte(self.buf:byte(pos, pos)) then
+ return pos
+ elseif isCharByte(self.buf:byte(pos+1, pos+1)) then
+ return pos + 1
+ end
+ return pos
+end
+
+function mt:rowcol(pos, code)
+ if pos < 1 then
+ return 1, 1
+ end
+ code = code or self.code
+ if pos >= #self.buf + 1 then
+ local start = self[#self].start
+ if code == 'utf8' then
+ return #self, utf8_len(self.buf, start) + 1
+ else
+ return #self, #self.buf - start + 2
+ end
+ end
+ local min = 1
+ local max = #self
+ for _ = 1, 100 do
+ if max == min then
+ local start = self[min].start
+ if code == 'utf8' then
+ return min, utf8_len(self.buf, start, pos)
+ else
+ return min, pos - start + 1
+ end
+ end
+ local row = (max - min) // 2 + min
+ local start = self[row].start
+ if pos < start then
+ max = row
+ elseif pos > start then
+ local next_start = self[row + 1].start
+ if pos < next_start then
+ if code == 'utf8' then
+ return row, utf8_len(self.buf, start, pos)
+ else
+ return row, pos - start + 1
+ end
+ elseif pos > next_start then
+ min = row + 1
+ else
+ return row + 1, 1
+ end
+ else
+ return row, 1
+ end
+ end
+ error('rowcol failed!')
+end
+
+function mt:line(i)
+ local start, finish = self:range(i)
+ return self.buf:sub(start, finish)
+end
+
+function mt:range(i)
+ if i < 1 or i > #self then
+ return 0, 0
+ end
+ return self[i].start, self[i].finish
+end
+
+function mt:set_code(code)
+ self.code = code
+end
+
+return function (self, buf, code)
+ local lines, err = parser:match(buf)
+ if not lines then
+ return nil, err
+ end
+ lines.buf = buf
+ lines.code = code
+
+ return setmetatable(lines, mt)
+end
diff --git a/script/src/parser/parse.lua b/script/src/parser/parse.lua
new file mode 100644
index 00000000..6ad79d9b
--- /dev/null
+++ b/script/src/parser/parse.lua
@@ -0,0 +1,41 @@
+local ast = require 'parser.ast'
+
+local Errs
+local State
+
+local function pushError(err)
+ if err.finish < err.start then
+ err.finish = err.start
+ end
+ local last = Errs[#Errs]
+ if last then
+ if last.start <= err.start and last.finish >= err.finish then
+ return
+ end
+ end
+ err.level = err.level or 'error'
+ Errs[#Errs+1] = err
+ return err
+end
+
+return function (self, lua, mode, version)
+ Errs = {}
+ State= {
+ Break = 0,
+ Label = {{}},
+ Dots = {true},
+ Version = version,
+ Comments = {},
+ Lua = lua,
+ }
+ ast.init(State, Errs)
+ local suc, res, err = xpcall(self.grammar, debug.traceback, self, lua, mode)
+ if not suc then
+ return nil, res
+ end
+ if not res then
+ pushError(err)
+ return nil, Errs
+ end
+ return res, Errs, State.Comments
+end
diff --git a/script/src/parser/relabel.lua b/script/src/parser/relabel.lua
new file mode 100644
index 00000000..ac902403
--- /dev/null
+++ b/script/src/parser/relabel.lua
@@ -0,0 +1,361 @@
+-- $Id: re.lua,v 1.44 2013/03/26 20:11:40 roberto Exp $
+
+-- imported functions and modules
+local tonumber, type, print, error = tonumber, type, print, error
+local pcall = pcall
+local setmetatable = setmetatable
+local tinsert, concat = table.insert, table.concat
+local rep = string.rep
+local m = require"lpeglabel"
+
+-- 'm' will be used to parse expressions, and 'mm' will be used to
+-- create expressions; that is, 're' runs on 'm', creating patterns
+-- on 'mm'
+local mm = m
+
+-- pattern's metatable
+local mt = getmetatable(mm.P(0))
+
+
+
+-- No more global accesses after this point
+_ENV = nil
+
+
+local any = m.P(1)
+local dummy = mm.P(false)
+
+
+local errinfo = {
+ NoPatt = "no pattern found",
+ ExtraChars = "unexpected characters after the pattern",
+
+ ExpPatt1 = "expected a pattern after '/'",
+
+ ExpPatt2 = "expected a pattern after '&'",
+ ExpPatt3 = "expected a pattern after '!'",
+
+ ExpPatt4 = "expected a pattern after '('",
+ ExpPatt5 = "expected a pattern after ':'",
+ ExpPatt6 = "expected a pattern after '{~'",
+ ExpPatt7 = "expected a pattern after '{|'",
+
+ ExpPatt8 = "expected a pattern after '<-'",
+
+ ExpPattOrClose = "expected a pattern or closing '}' after '{'",
+
+ ExpNumName = "expected a number, '+', '-' or a name (no space) after '^'",
+ ExpCap = "expected a string, number, '{}' or name after '->'",
+
+ ExpName1 = "expected the name of a rule after '=>'",
+ ExpName2 = "expected the name of a rule after '=' (no space)",
+ ExpName3 = "expected the name of a rule after '<' (no space)",
+
+ ExpLab1 = "expected a label after '{'",
+
+ ExpNameOrLab = "expected a name or label after '%' (no space)",
+
+ ExpItem = "expected at least one item after '[' or '^'",
+
+ MisClose1 = "missing closing ')'",
+ MisClose2 = "missing closing ':}'",
+ MisClose3 = "missing closing '~}'",
+ MisClose4 = "missing closing '|}'",
+ MisClose5 = "missing closing '}'", -- for the captures
+
+ MisClose6 = "missing closing '>'",
+ MisClose7 = "missing closing '}'", -- for the labels
+
+ MisClose8 = "missing closing ']'",
+
+ MisTerm1 = "missing terminating single quote",
+ MisTerm2 = "missing terminating double quote",
+}
+
+local function expect (pattern, label)
+ return pattern + m.T(label)
+end
+
+
+-- Pre-defined names
+local Predef = { nl = m.P"\n" }
+
+
+local mem
+local fmem
+local gmem
+
+
+local function updatelocale ()
+ mm.locale(Predef)
+ Predef.a = Predef.alpha
+ Predef.c = Predef.cntrl
+ Predef.d = Predef.digit
+ Predef.g = Predef.graph
+ Predef.l = Predef.lower
+ Predef.p = Predef.punct
+ Predef.s = Predef.space
+ Predef.u = Predef.upper
+ Predef.w = Predef.alnum
+ Predef.x = Predef.xdigit
+ Predef.A = any - Predef.a
+ Predef.C = any - Predef.c
+ Predef.D = any - Predef.d
+ Predef.G = any - Predef.g
+ Predef.L = any - Predef.l
+ Predef.P = any - Predef.p
+ Predef.S = any - Predef.s
+ Predef.U = any - Predef.u
+ Predef.W = any - Predef.w
+ Predef.X = any - Predef.x
+ mem = {} -- restart memoization
+ fmem = {}
+ gmem = {}
+ local mt = {__mode = "v"}
+ setmetatable(mem, mt)
+ setmetatable(fmem, mt)
+ setmetatable(gmem, mt)
+end
+
+
+updatelocale()
+
+
+
+local I = m.P(function (s,i) print(i, s:sub(1, i-1)); return i end)
+
+
+local function getdef (id, defs)
+ local c = defs and defs[id]
+ if not c then
+ error("undefined name: " .. id)
+ end
+ return c
+end
+
+
+local function mult (p, n)
+ local np = mm.P(true)
+ while n >= 1 do
+ if n%2 >= 1 then np = np * p end
+ p = p * p
+ n = n/2
+ end
+ return np
+end
+
+local function equalcap (s, i, c)
+ if type(c) ~= "string" then return nil end
+ local e = #c + i
+ if s:sub(i, e - 1) == c then return e else return nil end
+end
+
+
+local S = (Predef.space + "--" * (any - Predef.nl)^0)^0
+
+local name = m.C(m.R("AZ", "az", "__") * m.R("AZ", "az", "__", "09")^0)
+
+local arrow = S * "<-"
+
+-- a defined name only have meaning in a given environment
+local Def = name * m.Carg(1)
+
+local num = m.C(m.R"09"^1) * S / tonumber
+
+local String = "'" * m.C((any - "'" - m.P"\n")^0) * expect("'", "MisTerm1")
+ + '"' * m.C((any - '"' - m.P"\n")^0) * expect('"', "MisTerm2")
+
+
+local defined = "%" * Def / function (c,Defs)
+ local cat = Defs and Defs[c] or Predef[c]
+ if not cat then
+ error("name '" .. c .. "' undefined")
+ end
+ return cat
+end
+
+local Range = m.Cs(any * (m.P"-"/"") * (any - "]")) / mm.R
+
+local item = defined + Range + m.C(any - m.P"\n")
+
+local Class =
+ "["
+ * (m.C(m.P"^"^-1)) -- optional complement symbol
+ * m.Cf(expect(item, "ExpItem") * (item - "]")^0, mt.__add)
+ / function (c, p) return c == "^" and any - p or p end
+ * expect("]", "MisClose8")
+
+local function adddef (t, k, exp)
+ if t[k] then
+ -- TODO 改了一下这里的代码，重复定义不会抛错
+ --error("'"..k.."' already defined as a rule")
+ else
+ t[k] = exp
+ end
+ return t
+end
+
+local function firstdef (n, r) return adddef({n}, n, r) end
+
+
+local function NT (n, b)
+ if not b then
+ error("rule '"..n.."' used outside a grammar")
+ else return mm.V(n)
+ end
+end
+
+
+local exp = m.P{ "Exp",
+ Exp = S * ( m.V"Grammar"
+ + m.Cf(m.V"Seq" * (S * "/" * expect(S * m.V"Seq", "ExpPatt1"))^0, mt.__add) );
+ Seq = m.Cf(m.Cc(m.P"") * m.V"Prefix" * (S * m.V"Prefix")^0, mt.__mul);
+ Prefix = "&" * expect(S * m.V"Prefix", "ExpPatt2") / mt.__len
+ + "!" * expect(S * m.V"Prefix", "ExpPatt3") / mt.__unm
+ + m.V"Suffix";
+ Suffix = m.Cf(m.V"Primary" *
+ ( S * ( m.P"+" * m.Cc(1, mt.__pow)
+ + m.P"*" * m.Cc(0, mt.__pow)
+ + m.P"?" * m.Cc(-1, mt.__pow)
+ + "^" * expect( m.Cg(num * m.Cc(mult))
+ + m.Cg(m.C(m.S"+-" * m.R"09"^1) * m.Cc(mt.__pow)
+ + name * m.Cc"lab"
+ ),
+ "ExpNumName")
+ + "->" * expect(S * ( m.Cg((String + num) * m.Cc(mt.__div))
+ + m.P"{}" * m.Cc(nil, m.Ct)
+ + m.Cg(Def / getdef * m.Cc(mt.__div))
+ ),
+ "ExpCap")
+ + "=>" * expect(S * m.Cg(Def / getdef * m.Cc(m.Cmt)),
+ "ExpName1")
+ )
+ )^0, function (a,b,f) if f == "lab" then return a + mm.T(b) else return f(a,b) end end );
+ Primary = "(" * expect(m.V"Exp", "ExpPatt4") * expect(S * ")", "MisClose1")
+ + String / mm.P
+ + Class
+ + defined
+ + "%" * expect(m.P"{", "ExpNameOrLab")
+ * expect(S * m.V"Label", "ExpLab1")
+ * expect(S * "}", "MisClose7") / mm.T
+ + "{:" * (name * ":" + m.Cc(nil)) * expect(m.V"Exp", "ExpPatt5")
+ * expect(S * ":}", "MisClose2")
+ / function (n, p) return mm.Cg(p, n) end
+ + "=" * expect(name, "ExpName2")
+ / function (n) return mm.Cmt(mm.Cb(n), equalcap) end
+ + m.P"{}" / mm.Cp
+ + "{~" * expect(m.V"Exp", "ExpPatt6")
+ * expect(S * "~}", "MisClose3") / mm.Cs
+ + "{|" * expect(m.V"Exp", "ExpPatt7")
+ * expect(S * "|}", "MisClose4") / mm.Ct
+ + "{" * expect(m.V"Exp", "ExpPattOrClose")
+ * expect(S * "}", "MisClose5") / mm.C
+ + m.P"." * m.Cc(any)
+ + (name * -arrow + "<" * expect(name, "ExpName3")
+ * expect(">", "MisClose6")) * m.Cb("G") / NT;
+ Label = num + name;
+ Definition = name * arrow * expect(m.V"Exp", "ExpPatt8");
+ Grammar = m.Cg(m.Cc(true), "G")
+ * m.Cf(m.V"Definition" / firstdef * (S * m.Cg(m.V"Definition"))^0,
+ adddef) / mm.P;
+}
+
+local pattern = S * m.Cg(m.Cc(false), "G") * expect(exp, "NoPatt") / mm.P
+ * S * expect(-any, "ExtraChars")
+
+local function lineno (s, i)
+ if i == 1 then return 1, 1 end
+ local adjustment = 0
+ -- report the current line if at end of line, not the next
+ if s:sub(i,i) == '\n' then
+ i = i-1
+ adjustment = 1
+ end
+ local rest, num = s:sub(1,i):gsub("[^\n]*\n", "")
+ local r = #rest
+ return 1 + num, (r ~= 0 and r or 1) + adjustment
+end
+
+local function calcline (s, i)
+ if i == 1 then return 1, 1 end
+ local rest, line = s:sub(1,i):gsub("[^\n]*\n", "")
+ local col = #rest
+ return 1 + line, col ~= 0 and col or 1
+end
+
+
+local function splitlines(str)
+ local t = {}
+ local function helper(line) tinsert(t, line) return "" end
+ helper((str:gsub("(.-)\r?\n", helper)))
+ return t
+end
+
+local function compile (p, defs)
+ if mm.type(p) == "pattern" then return p end -- already compiled
+ p = p .. " " -- for better reporting of column numbers in errors when at EOF
+ local ok, cp, label, poserr = pcall(function() return pattern:match(p, 1, defs) end)
+ if not ok and cp then
+ if type(cp) == "string" then
+ cp = cp:gsub("^[^:]+:[^:]+: ", "")
+ end
+ error(cp, 3)
+ end
+ if not cp then
+ local lines = splitlines(p)
+ local line, col = lineno(p, poserr)
+ local err = {}
+ tinsert(err, "L" .. line .. ":C" .. col .. ": " .. errinfo[label])
+ tinsert(err, lines[line])
+ tinsert(err, rep(" ", col-1) .. "^")
+ error("syntax error(s) in pattern\n" .. concat(err, "\n"), 3)
+ end
+ return cp
+end
+
+local function match (s, p, i)
+ local cp = mem[p]
+ if not cp then
+ cp = compile(p)
+ mem[p] = cp
+ end
+ return cp:match(s, i or 1)
+end
+
+local function find (s, p, i)
+ local cp = fmem[p]
+ if not cp then
+ cp = compile(p) / 0
+ cp = mm.P{ mm.Cp() * cp * mm.Cp() + 1 * mm.V(1) }
+ fmem[p] = cp
+ end
+ local i, e = cp:match(s, i or 1)
+ if i then return i, e - 1
+ else return i
+ end
+end
+
+local function gsub (s, p, rep)
+ local g = gmem[p] or {} -- ensure gmem[p] is not collected while here
+ gmem[p] = g
+ local cp = g[rep]
+ if not cp then
+ cp = compile(p)
+ cp = mm.Cs((cp / rep + 1)^0)
+ g[rep] = cp
+ end
+ return cp:match(s)
+end
+
+
+-- exported names
+local re = {
+ compile = compile,
+ match = match,
+ find = find,
+ gsub = gsub,
+ updatelocale = updatelocale,
+ calcline = calcline
+}
+
+return re
diff --git a/script/src/parser/split.lua b/script/src/parser/split.lua
new file mode 100644
index 00000000..6ce4a4e7
--- /dev/null
+++ b/script/src/parser/split.lua
@@ -0,0 +1,9 @@
+local m = require 'lpeglabel'
+
+local NL = m.P'\r\n' + m.S'\r\n'
+local LINE = m.C(1 - NL)
+
+return function (str)
+ local MATCH = m.Ct((LINE * NL)^0 * LINE)
+ return MATCH:match(str)
+end
generated by cgit v1.2.3 (git 2.25.1) at 2025-02-04 15:59:09 +0000