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-- See Copyright Notice in the file LICENSE
local luatest = require "luatest"
local N = luatest.NT
local unpack = unpack or table.unpack
local function norm(a) return a==nil and N or a end
local function fill (n, m)
local t = {}
for i = n, m, -1 do table.insert (t, i) end
return t
end
local function set_named_subpatterns (lib, flg)
return {
Name = "Named Subpatterns",
Func = function (subj, methodname, patt, name1, name2)
local r = lib.new (patt)
local _,_,caps = r[methodname] (r, subj)
return norm(caps[name1]), norm(caps[name2])
end,
--{} N.B. subject is always first element
{ {"abcd", "tfind", "(?<dog>.)b.(?<cat>d)", "dog", "cat"}, {"a","d"} },
{ {"abcd", "exec", "(?<dog>.)b.(?<cat>d)", "dog", "cat"}, {"a","d"} },
}
end
local function set_f_find (lib, flg)
local cp1251 =
"ÀÁÂÃÄŨÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÜÛÚÝÞßàáâãäå¸æçèéêëìíîïðñòóôõö÷øùüûúýþÿ"
local loc = "CP1251"
return {
Name = "Function find",
Func = lib.find,
--{subj, patt, st,cf,ef,lo}, { results }
{ {"abcd", ".+", 5}, { N } }, -- failing st
{ {"abcd", ".*?"}, { 1,0 } }, -- non-greedy
{ {"abc", "aBC", N,flg.IGNORECASE}, { 1,3 } }, -- cf
{ {"abc", "aBC", N,"i" }, { 1,3 } }, -- cf
{ {cp1251, "[[:upper:]]+", N,N,N, loc}, { 1,33} }, -- locale
{ {cp1251, "[[:lower:]]+", N,N,N, loc}, {34,66} }, -- locale
{ {cp1251, "\\w+", N,N,N, loc}, {1, 66} }, -- locale
}
end
local function set_f_match (lib, flg)
return {
Name = "Function match",
Func = lib.match,
--{subj, patt, st,cf,ef,lo}, { results }
{ {"abcd", ".+", 5}, { N }}, -- failing st
{ {"abcd", ".*?"}, { "" }}, -- non-greedy
{ {"abc", "aBC", N,flg.IGNORECASE}, {"abc" }}, -- cf
{ {"abc", "aBC", N,"i" }, {"abc" }}, -- cf
}
end
local function set_f_gmatch (lib, flg)
-- gmatch (s, p, [cf], [ef])
local pCSV = "[^,]*"
local F = false
local function test_gmatch (subj, patt)
local out, guard = {}, 10
for a, b in lib.gmatch (subj, patt) 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 }
{ {"a\0c", "." }, {{"a",N},{"\0",N},{"c",N}} },--nuls in subj
{ {"", pCSV}, {{"",N}} },
{ {"12", pCSV}, {{"12",N}} },
{ {",", pCSV}, {{"", N},{"", N}} },
{ {"12,,45", pCSV}, {{"12",N},{"",N},{"45",N}} },
{ {",,12,45,,ab,", pCSV}, {{"",N},{"",N},{"12",N},{"45",N},{"",N},{"ab",N},{"",N}} },
{ {"12345", "(.)(.)"}, {{"1","2"},{"3","4"}} },
{ {"12345", "(.)(.?)"}, {{"1","2"},{"3","4"},{"5",""}} },
}
end
local function set_f_split (lib, flg)
-- split (s, p, [cf], [ef])
local function test_split (subj, patt)
local out, guard = {}, 10
for a, b, c in lib.split (subj, patt) do
table.insert (out, { norm(a), norm(b), norm(c) })
guard = guard - 1
if guard == 0 then break end
end
return unpack (out)
end
return {
Name = "Function split",
Func = test_split,
--{ subj patt results }
{ {"a,\0,c", ","}, {{"a",",",N},{"\0",",",N},{"c",N,N}, } },--nuls in subj
{ {"ab", "$"}, {{"ab","",N}, {"",N,N} } },
{ {"ab", "^|$"}, {{"", "", N}, {"ab","",N}, {"",N,N} } },
{ {"ab45ab","(?<=ab).*?"}, {{"ab","",N}, {"45ab","",N}, {"",N,N} } },
{ {"ab", "\\b"}, {{"", "", N}, {"ab","",N}, {"",N,N} } },
{ {"ab", ".*" }, {{"","ab",N}, {"",N,N} } },
{ {"ab", ".*?" }, {{"","",N}, {"a","",N}, {"b","",N}, {"",N,N} } },
{ {"ab;de", ";*" }, {{"","",N},{"a","",N},{"b",";",N},{"d","",N},{"e","",N},{"",N,N} }},
}
end
local function set_f_internal_test (lib, flg)
return {
Name = "Function internal_test",
Func = lib.internal_test,
--{ params results }
{ {""}, {true} },
}
end
local function set_m_exec (lib, flg)
return {
Name = "Method exec",
Method = "exec",
--{patt,cf,lo}, {subj,st,ef} { results }
{ {".+"}, {"abcd",5}, { N } }, -- failing st
{ {".*?"}, {"abcd"}, {1,0,{}} }, -- non-greedy
{ {"aBC",flg.IGNORECASE}, {"abc"}, {1,3,{}} }, -- cf
{ {"aBC","i" }, {"abc"}, {1,3,{}} }, -- cf
}
end
local function set_m_tfind (lib, flg)
return {
Name = "Method tfind",
Method = "tfind",
--{patt,cf,lo}, {subj,st,ef} { results }
{ {".+"}, {"abcd",5}, { N } }, -- failing st
{ {".*?"}, {"abcd"}, {1,0,{}} }, -- non-greedy
{ {"aBC",flg.IGNORECASE}, {"abc"}, {1,3,{}} }, -- cf
{ {"aBC","i" }, {"abc"}, {1,3,{}} }, -- cf
}
end
local function set_m_capturecount (lib, flg)
return {
Name = "Method capturecount",
Method = "capturecount",
--{patt,cf,lo}, {subj,st,ef} { results }
{ {"a"}, {}, { 0 } },
{ {"(a)"}, {}, { 1 } },
{ {"(a)(a)"}, {}, { 2 } },
{ {"((a)a)"}, {}, { 2 } },
{ {"((?i)a)(?:a)"}, {}, { 1 } },
}
end
return function (libname)
local lib = require (libname)
local flags = lib.flags ()
local sets = {
set_f_internal_test (lib, flags),
set_f_match (lib, flags),
set_f_find (lib, flags),
set_f_gmatch (lib, flags),
set_f_split (lib, flags),
set_m_exec (lib, flags),
set_m_tfind (lib, flags),
set_m_capturecount (lib, flags),
}
local MAJOR = tonumber(lib.version():match("%d+"))
if MAJOR >= 0 then
table.insert (sets, set_named_subpatterns (lib, flags))
end
return sets
end
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