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-- See Copyright Notice in the file LICENSE
local luatest = require "luatest"
local N = luatest.NT
local function norm(a) return a==nil and N or a end
local function set_f_gmatch (lib, flg)
local downcase = {}
for i = 0, 255 do -- 255 == UCHAR_MAX
downcase[i] = string.gsub(string.char (i), ".", function (s) return string.lower(s) end)
end
-- gmatch (s, p, [cf], [ef], [tr])
local function test_gmatch (subj, patt)
local out, guard = {}, 10
for a, b in lib.gmatch (subj, patt, nil, nil, downcase) do
table.insert (out, { norm(a), norm(b) })
guard = guard - 1
if guard == 0 then break end
end
return unpack (out)
end
return {
Name = "Function gmatch",
Func = test_gmatch,
--{ subj patt results }
{ {"abA", "a"}, {{"a",N}, {"A",N} } },
}
end
local function set_f_match (lib, flg)
return {
Name = "Function match",
Func = lib.match,
--{subj, patt, st,cf,ef}, { results }
{ {"abcd", ".+", 5}, { N } }, -- failing st
{ {"abc", "^abc"}, {"abc" } }, -- anchor
{ {"abc", "^abc", N,N,flg.not_bol}, { N } }, -- anchor + ef
{ {"abc", "abc$", N,N,flg.not_eol}, { N } }, -- anchor + ef
{ {"cabcaab", "ca+b", N,N,flg.backward}, {"caab" } }, -- reverse search
}
end
return function (libname)
local lib = require (libname)
local flags = lib.flags ()
return {
set_f_match (lib, flags),
set_f_gmatch (lib),
}
end
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