R Under development (unstable) (2024-06-16 r86763 ucrt) -- "Unsuffered Consequences"
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> #'  spatstat.utils/tests/tekst.R
> 
> require(spatstat.utils)
Loading required package: spatstat.utils
> 
> #' tests of R/utiltext.R
> 
> a <- paren(character(0))
> a <- paren("hello", "")
> a <- paren("hello", "{")
> 
> strsplitretain("hello, world")
[[1]]
[1] "hello," " world"

> 
> truncline(c("Now is the time for all good people",
+             "to come to the aid of the Party"),
+           15)
[1] "Now is the [..]" "to come to [..]"
> 
> is.blank(c("a", " ", "b"))
[1] FALSE  TRUE FALSE
> 
> onetwo <- c("one", "two")
> padtowidth(onetwo, 10, "left")
[1] "one       " "two       "
> padtowidth(onetwo, 10, "right")
[1] "       one" "       two"
> padtowidth(onetwo, 10, "centre")
[1] "   one    " "   two    "
> 
> splat("Hello world", indent="zzz")
zzzHello world
> 
> choptext("Hello\nWorld")
[1] "Hello" "World"
> exhibitStringList("Letters", letters)
Letters 
   a b c d e f g h i j k l m n o p q r s t u v w x y z
> exhibitStringList("Letters", letters[1:4])
Letters a, b, c, d 
> 
> numalign(42, 1e4)
[1] "00042"
> singlestring(1:5)
[1] "12345"
> 
> x <- c("TRUE", "unknown", "not known")
> verbalogic(x, "and")
[1] "unknown and not known"
> verbalogic(x, "or")
[1] "TRUE"
> verbalogic(x, "not")
[1] "FALSE"             "not { unknown }"   "not { not known }"
> x[1] <- "FALSE"
> verbalogic(x, "and")
[1] "FALSE"
> 
> sensiblevarname("$@wtf%!", "variablenumberone")
[1] "variablenumb"
> nzpaste(c("Hello", "", "World"))
[1] "Hello" ""      "World"
> substringcount("v", "vavavoom")
[1] 3
> huh <- c("42", "y <- x", "$%^%$")
> is.parseable(huh)
    42 y <- x  $%^%$ 
  TRUE   TRUE  FALSE 
> make.parseable(huh)
[1] "X42"    "y....x" "X....."
> paste.expr(expression(y == x))
[1] "y == x"
> pasteFormula(y ~ x + z)
[1] "y ~ x + z"
> gsubdot("cbind(est,theo)", ". ~ r")
[1] "cbind(est,theo) ~ r"
> 
> simplenumber(0)
[1] "0"
> simplenumber(1/3)
[1] "1/3"
> simplenumber(2/3)
[1] "2/3"
> simplenumber(-2)
[1] "-2"
> simplenumber(0, unit="km")
[1] "0"
> simplenumber(1/3, unit="km")
[1] "km/3"
> simplenumber(2/3, unit="km")
[1] "2*km/3"
> simplenumber(-2, unit="km")
[1] "-2*km"
> 
> makeCutLabels(0:3)
[1] "(0,1]" "(1,2]" "(2,3]"
> 
> proc.time()
   user  system elapsed 
   0.17    0.04    0.15