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#' Representations of vectors
#'
#' @param obj The vector to create a representation for
#' @param ... ignored
#' @param items The maximum number of items displayed. The default is given by the option \code{repr.vector.max.items}
#'
#' @name repr_*.vector
#' @include repr_list.r
#' @include utils.r
NULL
# repr_text is defined via print
repr_vector_generic <- function(
vec, enum_item, named_item, only_named_item,
enum_wrap, named_wrap = enum_wrap,
...,
numeric_item = named_item,
individual_wrap = NULL, # will be passed the vector items twice so needs 2 times %s
item_uses_numbers = FALSE, escape_fun = identity,
items = getOption('repr.vector.max.items')
) {
if (length(vec) == 0) return('')
nms <- names(vec)
if (!is.null(nms))
nms <- escape_fun(nms)
qt <- is.character(vec) && getOption('repr.vector.quote')
# excape_fun is output format specific, encodeString ensures that non-printables come out as \-escapes
parts <- partition(length(vec), items)
charify <- function(part) escape_fun(encodeString(as.character(part), quote = if (qt) "'" else ''))
# see repr_matrix_df.r for chars$ellip_h
char_vec <-
if (is.null(parts)) charify(vec)
else c(charify(vec[parts$start]), chars$ellip_h, charify(vec[parts$end]))
if (!is.null(individual_wrap)) {
char_vec <- sprintf(individual_wrap, char_vec, char_vec)
}
if (length(char_vec) > 1) {
entries <-
if (!is.null(nms))
vapply(seq_along(char_vec), function(i) {
nm <- nms[[i]]
if (is.na(nm) || nchar(nm) == 0) {
sprintf(numeric_item, i, char_vec[[i]])
} else {
sprintf(named_item, nms[[i]], char_vec[[i]])
}
}, character(1))
else if (item_uses_numbers)
sprintf(enum_item, seq_along(char_vec), char_vec)
else
sprintf(enum_item, char_vec)
wrap <- if (is.null(nms)) enum_wrap else named_wrap
sprintf(wrap, paste0(entries, collapse = ''))
} else if (is.null(nms)) {
char_vec
} else {
sprintf(only_named_item, nms, char_vec)
}
}
# HTML --------------------------------------------------------------------
list_style <- '<style>
.list-inline {list-style: none; margin:0; padding: 0}
.list-inline>li {display: inline-block}
.list-inline>li:not(:last-child)::after {content: "\\00b7"; padding: 0 .5ex}
</style>
'
def_style <- '<style>
.dl-inline {width: auto; margin:0; padding: 0}
.dl-inline>dt, .dl-inline>dd {float: none; width: auto; display: inline-block}
.dl-inline>dt::after {content: ":\\0020"; padding-right: .5ex}
.dl-inline>dt:not(:first-of-type) {padding-left: .5ex}
</style>'
repr_html_wrapper <- function(obj, individual_wrap, items, ...) repr_vector_generic(
obj,
'<li>%s</li>',
'<dt>%s</dt><dd>%s</dd>',
'<strong>%s:</strong> %s',
paste0(list_style, '<ol class=list-inline>%s</ol>\n'),
paste0(def_style, '<dl class=dl-inline>%s</dl>\n'),
escape_fun = html_escape,
individual_wrap = individual_wrap,
items = items
)
#' @name repr_*.vector
#' @export
repr_html.logical <- function(obj, ..., items = getOption('repr.vector.max.items'))
repr_html_wrapper(obj, NULL, items, ...)
#' @name repr_*.vector
#' @export
repr_html.integer <- repr_html.logical
#' @name repr_*.vector
#' @export
repr_html.complex <- repr_html.logical
#' @name repr_*.vector
#' @export
repr_html.numeric <- repr_html.logical
#' @name repr_*.vector
#' @export
repr_html.character <- repr_html.logical
#' @name repr_*.vector
#' @export
repr_html.Date <- function(obj, ..., items = getOption('repr.vector.max.items'))
repr_html_wrapper(obj, '<time datetime="%s">%s</time>', items, ...)
# Markdown ----------------------------------------------------------------
#' @name repr_*.vector
#' @export
repr_markdown.logical <- function(obj, ..., items = getOption('repr.vector.max.items')) repr_vector_generic(
html_escape_names(obj),
'%s. %s\n',
'%s\n: %s',
'**%s:** %s',
'%s\n\n',
item_uses_numbers = TRUE,
escape_fun = html_escape,
items = items
)
#' @name repr_*.vector
#' @export
repr_markdown.integer <- repr_markdown.logical
#' @name repr_*.vector
#' @export
repr_markdown.complex <- repr_markdown.logical
#' @name repr_*.vector
#' @export
repr_markdown.numeric <- repr_markdown.logical
#' @name repr_*.vector
#' @export
repr_markdown.character <- repr_markdown.logical
#' @name repr_*.vector
#' @export
repr_markdown.Date <- repr_markdown.logical
# LaTeX -------------------------------------------------------------------
#' @name repr_*.vector
#' @export
repr_latex.logical <- function(obj, ..., items = getOption('repr.vector.max.items')) repr_vector_generic(
latex_escape_names(obj), # escape vector names, regardless of class
'\\item %s\n',
'\\item[%s] %s\n',
'\\textbf{%s:} %s',
enum_wrap = '\\begin{enumerate*}\n%s\\end{enumerate*}\n',
named_wrap = '\\begin{description*}\n%s\\end{description*}\n',
only_named_item = '\\textbf{%s:} %s',
escape_fun = latex_escape,
items = items
)
#' @name repr_*.vector
#' @export
repr_latex.integer <- repr_latex.logical
#' @name repr_*.vector
#' @export
repr_latex.complex <- repr_latex.logical
#' @name repr_*.vector
#' @export
repr_latex.numeric <- repr_latex.logical
#' @name repr_*.vector
#' @export
repr_latex.character <- repr_latex.logical
#' @name repr_*.vector
#' @export
repr_latex.Date <- repr_latex.logical
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