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format_glimpse
Format a vector for horizontal printing
Description
![[Experimental]](../help/figures/lifecycle-experimental.svg)
This generic provides the logic for printing vectors in glimpse().
The output strives to be as unambiguous as possible,
without compromising on readability.
In a list, to distinguish between vectors and nested lists,
the latter are surrounded by [] brackets.
Empty lists are shown as [].
Vectors inside lists, of length not equal to one,
are surrounded by <> angle brackets.
Empty vectors are shown as <>.
Usage
format_glimpse(x, ...)
Arguments
x |
A vector. |
... |
Arguments passed to methods. |
Value
A character vector of the same length as x.
Examples
format_glimpse(1:3)
# Lists use [], vectors inside lists use <>
format_glimpse(list(1:3))
format_glimpse(list(1, 2:3))
format_glimpse(list(list(1), list(2:3)))
format_glimpse(list(as.list(1), as.list(2:3)))
format_glimpse(list(character()))
format_glimpse(list(NULL))
# Character strings are always quoted
writeLines(format_glimpse(letters[1:3]))
writeLines(format_glimpse(c("A", "B, C")))
# Factors are quoted only when needed
writeLines(format_glimpse(factor(letters[1:3])))
writeLines(format_glimpse(factor(c("A", "B, C"))))