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import unittest
include nre
suite "Test NRE initialization":
test "correct initialization":
check(re("[0-9]+") != nil)
check(re("(?i)[0-9]+") != nil)
test "options":
check(extractOptions("(*NEVER_UTF)") ==
("", pcre.NEVER_UTF, true))
check(extractOptions("(*UTF8)(*ANCHORED)(*UCP)z") ==
("(*UTF8)(*UCP)z", pcre.ANCHORED, true))
check(extractOptions("(*ANCHORED)(*UTF8)(*JAVASCRIPT_COMPAT)z") ==
("(*UTF8)z", pcre.ANCHORED or pcre.JAVASCRIPT_COMPAT, true))
check(extractOptions("(*NO_STUDY)(") == ("(", 0, false))
check(extractOptions("(*LIMIT_MATCH=6)(*ANCHORED)z") ==
("(*LIMIT_MATCH=6)z", pcre.ANCHORED, true))
test "incorrect options":
for s in ["CR", "(CR", "(*CR", "(*abc)", "(*abc)CR",
"(?i)",
"(*LIMIT_MATCH=5", "(*NO_AUTO_POSSESS=5)"]:
let ss = s & "(*NEVER_UTF)"
check(extractOptions(ss) == (ss, 0, true))
test "invalid regex":
expect(SyntaxError): discard re("[0-9")
try:
discard re("[0-9")
except SyntaxError:
let ex = SyntaxError(getCurrentException())
check(ex.pos == 4)
check(ex.pattern == "[0-9")
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