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test_that("corner cases", {
res <- re_exec_val(.text <- c("foo", "bar"), "")
expect_equal(
as.data.frame(res),
asdf(.text = .text, .match = reclist(mrec("", 1, 0), mrec("", 1, 0)))
)
res <- re_exec_val(.text <- c("foo", "", "bar"), "")
expect_equal(
as.data.frame(res),
asdf(
.text = .text,
.match = reclist(mrec("", 1, 0), mrec("", 1, 0), mrec("", 1, 0))
)
)
res <- re_exec_val(.text <- character(), "")
expect_equal(as.data.frame(res), asdf(.text = .text, .match = reclist()))
res <- re_exec_val(.text <- character(), "foo")
expect_equal(as.data.frame(res), asdf(.text = .text, .match = reclist()))
res <- re_exec_val(.text <- character(), "foo (g1) (g2)")
expect_equal(
as.data.frame(res),
asdf(reclist(), reclist(), .text = .text, .match = reclist())
)
res <- re_exec_val(.text <- character(), "foo (g1) (?<name>g2)")
expect_equal(
as.data.frame(res),
asdf(reclist(), name = reclist(), .text = .text, .match = reclist())
)
res <- re_exec_val(.text <- "not", "foo")
expect_equal(
as.data.frame(res),
asdf(.text = .text, .match = reclist(mrec(NA, NA, NA)))
)
})
test_that("not so corner cases", {
dates <- c("2016-04-20", "1977-08-08", "not a date", "2016",
"76-03-02", "2012-06-30", "2015-01-21 19:58")
isodate <- "([0-9]{4})-([0-1][0-9])-([0-3][0-9])"
expected <- asdf(
reclist(
mrec("2016", 1, 4), mrec("1977", 1, 4), narec(), narec(), narec(),
mrec("2012", 1, 4), mrec("2015", 1, 4)
),
reclist(
mrec("04", 6, 7), mrec("08", 6, 7), narec(), narec(), narec(),
mrec("06", 6, 7), mrec("01", 6, 7)
),
reclist(
mrec("20", 9, 10), mrec("08", 9, 10), narec(), narec(), narec(),
mrec("30", 9, 10), mrec("21", 9, 10)
),
.text = dates,
.match = reclist(
mrec("2016-04-20", 1, 10), mrec("1977-08-08", 1, 10), narec(),
narec(), narec(), mrec("2012-06-30", 1, 10),
mrec("2015-01-21", 1, 10)
)
)
expect_equal(
as.data.frame(re_exec_val(text = dates, pattern = isodate)),
expected
)
isodaten <- "(?<year>[0-9]{4})-(?<month>[0-1][0-9])-(?<day>[0-3][0-9])"
expected <- asdf(
year = reclist(
mrec("2016", 1, 4), mrec("1977", 1, 4), narec(), narec(), narec(),
mrec("2012", 1, 4), mrec("2015", 1, 4)
),
month = reclist(
mrec("04", 6, 7), mrec("08", 6, 7), narec(), narec(), narec(),
mrec("06", 6, 7), mrec("01", 6, 7)
),
day = reclist(
mrec("20", 9, 10), mrec("08", 9, 10), narec(), narec(), narec(),
mrec("30", 9, 10), mrec("21", 9, 10)
),
.text = dates,
.match = reclist(
mrec("2016-04-20", 1, 10), mrec("1977-08-08", 1, 10), narec(),
narec(), narec(), mrec("2012-06-30", 1, 10),
mrec("2015-01-21", 1, 10)
)
)
expect_equal(
as.data.frame(re_exec_val(text = dates, pattern = isodaten)),
expected
)
})
test_that("UTF8", {
str <- "Gábor Csárdi"
pat <- "Gábor"
Encoding(str) <- Encoding(pat) <- "UTF-8"
res <- re_exec_val(str, pat)
expect_equal(
as.data.frame(res),
asdf(.text = str, .match = reclist(mrec(pat, 1, 5)))
)
})
test_that("text is scalar & capture groups", {
res <- re_exec_val(.text <- "foo bar", "(\\w+) (\\w+)")
expect_equal(
as.data.frame(res),
asdf(
reclist(mrec("foo", 1, 3)),
reclist(mrec("bar", 5, 7)),
.text = .text,
.match = reclist(mrec("foo bar", 1, 7))
)
)
res <- re_exec_val(.text <- "foo bar", "(?<g1>\\w+) (?<g2>\\w+)")
expect_equal(
as.data.frame(res),
asdf(
g1 = reclist(mrec("foo", 1, 3)),
g2 = reclist(mrec("bar", 5, 7)),
.text = .text,
.match = reclist(mrec("foo bar", 1, 7))
)
)
})
test_that("perl argument", {
# using perl=TRUE used to cause an error; not important in this case, but must
# be supported if we want this to be a drop in replacement for other functions
# (e.g. re-implenting `strsplit` with a rematch2 backend)
res <- re_exec_val(.text <- "foo bar", "\\w+", perl = TRUE)
expect_equal(
as.data.frame(res),
asdf(
.text = .text,
.match = reclist(mrec("foo", 1, 3))
)
)
# actually check that the capture group doesn't show up
res.tre <- re_exec_val(.text <- "foo bar", "\\w+ (\\w+)", perl = FALSE)
res.perl <- re_exec_val(.text <- "foo bar", "\\w+ (\\w+)", perl= TRUE)
expect_true(ncol(as.data.frame(res.perl)) == 3 && ncol(res.tre) == 2)
})
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