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--[[ Copyright (c) 2009 Peter "Corsix" Cawley
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE. --]]
if not rawget(_G, "unpack") then
unpack = table.unpack
end
if not rawget(_G, "loadstring") then
loadstring = load
end
function need_lpeg_version(major, minor)
local v = require"lpeg".version()
local m, n = v:match"^(%d+)%.(%d+)"
m = tonumber(m)
n = tonumber(n)
if m < major or (m == major and n < minor) then
error(("LPEG version >= %d.%d is required (you have %s)"):format(major, minor, v))
end
end
local auto_tokens
local auto_tokens_c = {
[","] = {"operator", ","},
["="] = {"operator", "="},
["<"] = {"operator", "<"},
[">"] = {"operator", ">"},
["*"] = {"operator", "%*"},
["->"] = {"operator", "%->"},
["("] = {"("},
[")"] = {")"},
}
local auto_tokens_lua = {
["function"] = {"keyword", "function"},
}
function tokens_gfind_mode(mode)
if mode == "C" then
auto_tokens = auto_tokens_c
elseif mode == "Lua" then
auto_tokens = auto_tokens_lua
else
error "Invalid mode"
end
end
function tokens_next(tokens, i)
repeat
i = i + 1
until (not tokens[i]) or (tokens[i][2] ~= "whitespace")
return i, tokens[i]
end
function tokens_gfind(tokens, ...)
local pattern = {...}
local ti = 0
if type(pattern[1]) == "number" then
ti = pattern[1] - 1
table.remove(pattern, 1)
end
for i, v in ipairs(pattern) do
if type(v) == "string" then
pattern[i] = auto_tokens[v] or {"identifier", v}
end
end
return function()
local tis
repeat
local matched = true
local adjust = -1
ti = ti + 1
tis = {}
for i, v in ipairs(pattern) do
if not tokens[ti + i + adjust] then
return
end
matched = false
if i == 1 and tokens[ti + i + adjust][2] == "whitespace" then
break
end
while tokens[ti + i + adjust][2] == "whitespace" do
adjust = adjust + 1
if not tokens[ti + i + adjust] then
return
end
end
if v[1] and tokens[ti + i + adjust][2] ~= v[1] then
break
end
if v[2] and not tokens[ti + i + adjust][1]:match(v[2]) then
break
end
matched = true
tis[#tis + 1] = ti + i + adjust
end
until matched
return tokens, unpack(tis)
end
end
function code(s)
return "*{{{" .. s .. "}}}*"
end
function map(t, f)
local t_out = {}
for k, v in pairs(t) do
t_out[k] = f(v)
end
return t_out
end
function set(t)
local s = {}
for i, v in ipairs(t) do
s[v] = true
end
return s
end
function src_ref(obj)
return [[<a href="http://www.github.com/CorsixTH/CorsixTH/blob/master/CorsixTH/]]..
obj:getFile() .."#L".. obj:getLine() ..[[">line ]].. obj:getLine() .." of ".. obj:getFile() .."</a>"
end
function isIteratorEmpty(f, s, v)
return f(s, v) == nil
end
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