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if not modules then modules = { } end modules ['mtx-check'] = {
version = 1.001,
comment = "companion to mtxrun.lua",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
scripts = scripts or { }
scripts.checker = scripts.checker or { }
local validator = { }
do
validator.n = 1
validator.errors = { }
validator.trace = false
validator.direct = false
validator.printer = print
validator.tracer = print
local message = function(position, kind)
local ve = validator.errors
ve[#ve+1] = { kind, position, validator.n }
if validator.direct then
validator.printer(string.format("%s error at position %s (line %s)", kind, position, validator.n))
end
end
local progress = function(position, data, kind)
if validator.trace then
validator.tracer(string.format("%s at position %s: %s", kind, position, data or ""))
end
end
local P, R, S, V, C, CP, CC = lpeg.P, lpeg.R, lpeg.S, lpeg.V, lpeg.C, lpeg.Cp, lpeg.Cc
local i_m, d_m = P("$"), P("$$")
local l_s, r_s = P("["), P("]")
local l_g, r_g = P("{"), P("}")
local esc = P("\\")
local cr = P("\r")
local lf = P("\n")
local crlf = P("\r\n")
local space = S(" \t\f\v")
local newline = crlf + cr + lf
local line = newline / function() validator.n = validator.n + 1 end
-- local grammar = P { "tokens",
-- ["tokens"] = (V("whatever") + V("grouped") + V("setup") + V("display") + V("inline") + V("errors") + 1)^0,
-- ["whatever"] = line + esc * 1 + C(P("%") * (1-line)^0),
-- ["grouped"] = CP() * C(l_g * (V("whatever") + V("grouped") + V("setup") + V("display") + V("inline") + (1 - l_g - r_g))^0 * r_g) * CC("group") / progress,
-- ["setup"] = CP() * C(l_s * (V("whatever") + V("grouped") + V("setup") + V("display") + V("inline") + (1 - l_s - r_s))^0 * r_s) * CC("setup") / progress,
-- ["display"] = CP() * C(d_m * (V("whatever") + V("grouped") + (1 - d_m))^0 * d_m) * CC("display") / progress,
-- ["inline"] = CP() * C(i_m * (V("whatever") + V("grouped") + (1 - i_m))^0 * i_m) * CC("inline") / progress,
-- ["errors"] = (V("gerror") + V("serror") + V("derror") + V("ierror")) * true,
-- ["gerror"] = CP() * (l_g + r_g) * CC("grouping") / message,
-- ["serror"] = CP() * (l_s + r_g) * CC("setup error") / message,
-- ["derror"] = CP() * d_m * CC("display math error") / message,
-- ["ierror"] = CP() * i_m * CC("inline math error") / message,
-- }
local startluacode = P("\\startluacode")
local stopluacode = P("\\stopluacode")
local somecode = startluacode * (1-stopluacode)^1 * stopluacode
local grammar = P { "tokens",
["tokens"] = (V("ignore") + V("whatever") + V("grouped") + V("setup") + V("display") + V("inline") + V("errors") + 1)^0,
["whatever"] = line + esc * 1 + C(P("%") * (1-line)^0),
["grouped"] = l_g * (V("whatever") + V("grouped") + V("setup") + V("display") + V("inline") + (1 - l_g - r_g))^0 * r_g,
["setup"] = l_s * (V("whatever") + V("grouped") + V("setup") + V("display") + V("inline") + (1 - l_s - r_s))^0 * r_s,
["display"] = d_m * (V("whatever") + V("grouped") + (1 - d_m))^0 * d_m,
["inline"] = i_m * (V("whatever") + V("grouped") + (1 - i_m))^0 * i_m,
["errors"] = (V("gerror")+ V("serror") + V("derror") + V("ierror")),
["gerror"] = CP() * (l_g + r_g) * CC("grouping") / message,
["serror"] = CP() * (l_s + r_g) * CC("setup error") / message,
["derror"] = CP() * d_m * CC("display math error") / message,
["ierror"] = CP() * i_m * CC("inline math error") / message,
["ignore"] = somecode,
}
function validator.check(str)
validator.n = 1
validator.errors = { }
grammar:match(str)
end
end
--~ str = [[
--~ a{oeps {oe\{\}ps} }
--~ test { oeps \} \[\] oeps \setupxxx[oeps=bla]}
--~ test $$ \hbox{$ oeps \} \[\] oeps $} $$
--~ {$x\$xx$ $
--~ ]]
--~ str = string.rep(str,10)
function scripts.checker.check(filename)
local str = io.loaddata(filename)
if str then
validator.check(str)
if #validator.errors > 0 then
for k, v in ipairs(validator.errors) do
local kind, position, line = v[1], v[2], v[3]
local data = str:sub(position-30,position+30)
data = data:gsub("(.)", {
["\n"] = " <lf> ",
["\r"] = " <cr> ",
["\t"] = " <tab> ",
})
data = data:gsub("^ *","")
print(string.format("% 5i %s %s", line,string.rpadd(kind,10," "),data))
end
else
print("no error")
end
else
print("no file")
end
end
logs.extendbanner("Syntax Checking 0.10",true)
messages.help = [[
--convert check tex file for errors
]]
if environment.argument("check") then
scripts.checker.check(environment.files[1])
elseif environment.argument("help") then
logs.help(messages.help)
elseif environment.files[1] then
scripts.checker.check(environment.files[1])
end
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