mirror of
https://github.com/rstudio/shiny.git
synced 2026-02-09 14:15:40 -05:00
83 lines
2.4 KiB
R
83 lines
2.4 KiB
R
\name{tag}
|
|
\alias{tag}
|
|
\alias{tagList}
|
|
\alias{tagAppendAttributes}
|
|
\alias{tagHasAttribute}
|
|
\alias{tagGetAttribute}
|
|
\alias{tagAppendChild}
|
|
\alias{tagAppendChildren}
|
|
\alias{tagSetChildren}
|
|
\title{HTML Tag Object}
|
|
\usage{
|
|
tagList(...)
|
|
|
|
tagAppendAttributes(tag, ...)
|
|
|
|
tagHasAttribute(tag, attr)
|
|
|
|
tagGetAttribute(tag, attr)
|
|
|
|
tagAppendChild(tag, child)
|
|
|
|
tagAppendChildren(tag, ..., list = NULL)
|
|
|
|
tagSetChildren(tag, ..., list = NULL)
|
|
|
|
tag(`_tag_name`, varArgs, .noWS = NULL)
|
|
}
|
|
\arguments{
|
|
\item{...}{Unnamed items that comprise this list of tags.}
|
|
|
|
\item{tag}{A tag to append child elements to.}
|
|
|
|
\item{attr}{The name of an attribute.}
|
|
|
|
\item{child}{A child element to append to a parent tag.}
|
|
|
|
\item{list}{An optional list of elements. Can be used with or instead of the
|
|
\code{...} items.}
|
|
|
|
\item{_tag_name}{HTML tag name}
|
|
|
|
\item{varArgs}{List of attributes and children of the element. Named list
|
|
items become attributes, and unnamed list items become children. Valid
|
|
children are tags, single-character character vectors (which become text
|
|
nodes), and raw HTML (see \code{\link{HTML}}). You can also pass lists that
|
|
contain tags, text nodes, and HTML.}
|
|
|
|
\item{.noWS}{Character vector used to omit some of the whitespace that would
|
|
normally be written around this tag. Valid options include \code{before},
|
|
\code{after}, \code{outside}, \code{after-begin}, and \code{before-end}.
|
|
Any number of these options can be specified.}
|
|
}
|
|
\value{
|
|
An HTML tag object that can be rendered as HTML using
|
|
\code{\link{as.character}()}.
|
|
}
|
|
\description{
|
|
\code{tag()} creates an HTML tag definition. Note that all of the valid HTML5
|
|
tags are already defined in the \code{\link{tags}} environment so these
|
|
functions should only be used to generate additional tags.
|
|
\code{tagAppendChild()} and \code{tagList()} are for supporting package
|
|
authors who wish to create their own sets of tags; see the contents of
|
|
bootstrap.R for examples.
|
|
}
|
|
\examples{
|
|
tagList(tags$h1("Title"),
|
|
tags$h2("Header text"),
|
|
tags$p("Text here"))
|
|
|
|
# Can also convert a regular list to a tagList (internal data structure isn't
|
|
# exactly the same, but when rendered to HTML, the output is the same).
|
|
x <- list(tags$h1("Title"),
|
|
tags$h2("Header text"),
|
|
tags$p("Text here"))
|
|
tagList(x)
|
|
|
|
# suppress the whitespace between tags
|
|
oneline <- tag("span",
|
|
tag("strong", "Super strong", .noWS="outside")
|
|
)
|
|
cat(as.character(oneline))
|
|
}
|