Nothing
extractMandatory <- hutilscpp:::extractMandatory
where_square_bracket_opens <- hutilscpp:::where_square_bracket_opens
# test_that("where_square_bracket_opens", {
s <- function(x) unlist(strsplit(x, split = "", fixed = TRUE))
expect_equal(where_square_bracket_opens(s("0123[567]9"), -1), -1)
expect_equal(where_square_bracket_opens(s("0123[567]9"), 0), -1)
expect_equal(where_square_bracket_opens(s("0123[567]9"), 8L), 4L)
expect_equal(where_square_bracket_opens(s("01234567]9"), 8L), 0L)
expect_equal(where_square_bracket_opens(s("0123[{}4]9"), 8L), 4L)
expect_equal(where_square_bracket_opens(s("{[[][]{}] "), 8L), 1L)
expect_equal(where_square_bracket_opens(s(c("a",
"[",
"",
"{",
"a",
"}",
"]")),
5L),
1L)
expect_equal(where_square_bracket_opens(s(c("a", # 0
"[",
"", # 2
"\u2010",
"{", # 4
"{",
"a", # 6
"}",
"}", # 8
"]")),
8L),
1L)
# STRING_ELT(x, i) != 1
expect_equal(where_square_bracket_opens(c("a", # 0
"[",
"", # 2
"aa", # <---- len 2
"{", # 4
"{",
"aa", # 6
"}",
"}", # 8
"]"),
9L),
1L)
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