正路目录

1 files changed, 0 insertions, 361 deletions

diff --git a/script-beta/src/parser/relabel.lua b/script-beta/src/parser/relabel.lua
deleted file mode 100644
index ac902403..00000000
--- a/script-beta/src/parser/relabel.lua
+++ /dev/null
@@ -1,361 +0,0 @@
--- $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