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Package 'htmltools"

March 23, 2023

TypePackage

TitleTools for HTML

Version0.5.5

DescriptionTools for HTML generation and output.

DependsR (>= 2.14.1)

Importsutils, digest, grDevices, base64enc, rlang (>= 0.4.10), fastmap (>= 1.1.0), ellipsis Suggestsmarkdown, testthat, withr, Cairo, ragg, shiny

Enhancesknitr

LicenseGPL (>= 2)

URLhttps://github.com/rstudio/htmltools,

https://rstudio.github.io/htmltools/

RoxygenNote7.2.3

EncodingUTF-8

Collate"colors.R" "fill.R" "html_dependency.R" "html_escape.R" "html_print.R" "images.R" "known_tags.R" "selector.R" "staticimports.R" "tag_query.R" "utils.R" "tags.R" "template.R"

Config/Needs/websiterstudio/quillt, bench

NeedsCompilationyes

AuthorJoe Cheng [aut],

Carson Sievert [aut, cre] (), Barret Schloerke [aut] (), Winston Chang [aut] (),

Yihui Xie [aut],

Jeff Allen [aut],

RStudio [cph]

MaintainerCarson Sievert

RepositoryCRAN

Date/Publication2023-03-23 09:50:06 UTC

1

2Rtopics documented:

Rtopics documented:

as.tags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 bindFillRole . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 browsable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 builder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 capturePlot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 copyDependencyToDir . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 css . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 defaultPngDevice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 findDependencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 HTML . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 htmlDependencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 htmlDependency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 htmlEscape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 htmlPreserve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 htmlTemplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 html_print . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 include . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 knitr_methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 makeDependencyRelative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 parseCssColors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 plotTag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
print.shiny.tag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
renderDependencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
renderDocument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
renderTags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
resolveDependencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
save_html . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
singleton . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
singleton_tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
subtractDependencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
suppressDependencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
tagAddRenderHook . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
tagAppendAttributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
tagAppendChild . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
tagFunction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
tagList . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
tagQuery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
urlEncodePath . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
validateCssUnit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
withTags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Index40

as.tags3as.tagsConvert a value to tagsDescription An S3 method for converting arbitrary values to a value that can be used as the child of a tag or tagList. The default implementation simply callsas.character(). Usage as.tags(x, ...)

Arguments

xObject to be converted. ...Any additional parameters.bindFillRoleAllow tags to intelligently fill their containerDescription

Create fill containers and items. If a fill item is a direct child of a fill container, and that container

has an opinionated height, then the item is allowed to grow and shrink to its container"s size. Usage bindFillRole( x, item = FALSE, container = FALSE, overwrite = FALSE, .cssSelector = NULL

Arguments

xatag()object. Can also be a validtagQuery()input if.cssSelectoris spec- ified. ...currently unused. itemwhether or not to treatxas a fill item.

4browsable

containerwhether or not to treatxas a fill container. Note this will the CSSdisplay property on the tag toflex, which changes the way it does layout of it"s direct children. Thus, one should be careful not to mark a tag as a fill container when it needs to rely on otherdisplaybehavior. overwritewhether or not to override previous calls tobindFillRole()(e.g., to remove the item/container role from a tag). .cssSelectorA character string containing a CSS selector for targeting particular (inner) tag(s)ofinterest. Formoredetailsonwhatselector(s)aresupported, seetagAppendAttributes(). Value The original tag object (x) with additional attributes (and ahtmlDependency()).

Examples

tagz <- div( id = "outer", style = css( height = "600px", border = "3px red solid" div( id = "inner", style = css( height = "400px", border = "3px blue solid" # Inner doesn?t fill outer if (interactive()) browsable(tagz) tagz <- bindFillRole(tagz, container = TRUE) tagz <- bindFillRole(tagz, item = TRUE, .cssSelector = "#inner") # Inner does fill outer if (interactive()) browsable(tagz)browsableMake an HTML object browsableDescription By default, HTML objects display their HTML markup at the console when printed.browsable can be used to make specific objects render as HTML by default when printed at the console. builder5 Usage browsable(x, value = TRUE) is.browsable(x)

Arguments

xThe object to make browsable or not. valueWhether the object should be considered browsable.

Details

You can override the default browsability of an HTML object by explicitly passingbrowse = TRUE (orFALSE) to theprintfunction. Value browsablereturnsxwith an extra attribute to indicate that the value is browsable. is.browsablereturnsTRUEif the value is browsable, orFALSEif not.builderCreate HTML tagsDescription Create an R object that represents an HTML tag. For convenience, common HTML tags (e.g.,
) can be created by calling for their tag name directly (e.g.,div()). To create less common HTML5 (or SVG) tags (e.g.,
), use thetagslist collection (e.g.,tags$article()). To create other non HTML/SVG tags, use the lower-leveltag()constructor. Usage tags p(..., .noWS = NULL, .renderHook = NULL) h1(..., .noWS = NULL, .renderHook = NULL) h2(..., .noWS = NULL, .renderHook = NULL) h3(..., .noWS = NULL, .renderHook = NULL) h4(..., .noWS = NULL, .renderHook = NULL) h5(..., .noWS = NULL, .renderHook = NULL)

6builder

h6(..., .noWS = NULL, .renderHook = NULL) a(..., .noWS = NULL, .renderHook = NULL) br(..., .noWS = NULL, .renderHook = NULL) div(..., .noWS = NULL, .renderHook = NULL) span(..., .noWS = NULL, .renderHook = NULL) pre(..., .noWS = NULL, .renderHook = NULL) code(..., .noWS = NULL, .renderHook = NULL) img(..., .noWS = NULL, .renderHook = NULL) strong(..., .noWS = NULL, .renderHook = NULL) em(..., .noWS = NULL, .renderHook = NULL) hr(..., .noWS = NULL, .renderHook = NULL) tag(?_tag_name?, varArgs, .noWS = NULL, .renderHook = NULL)

Arguments

...Tag attributes (named arguments) and children (unnamed arguments). A named argument with anNAvalue is rendered as a boolean attributes (see example).

Children may include any combination of:

Other tags objects

•HTML()strings •htmlDependency()s

Single-element atomic v ectors

•list()s containing any combination of the above .noWSCharacter vector used to omit some of the whitespace that would normally be written around this tag. Valid options includebefore,after,outside, after-begin, andbefore-end. Any number of these options can be specified. .renderHookA function (or list of functions) to call when thetagis rendered. This function should have at least one argument (thetag) and return anything that can be converted into tags viaas.tags(). Additional hooks may also be added to a particulartagviatagAddRenderHook(). _tag_nameA character string to use for the tag name. varArgsList of tag attributes and children. Value Alist()with ashiny.tagclass that can be converted into an HTML string viaas.character() and saved to a file withsave_html(). capturePlot7

See Also

Examples

tags$html( tags$head( tags$title(?My first page?) tags$body( h1(?My first heading?), p(?My first paragraph, with some?, strong(?bold?),?text.?), div( id =?myDiv?, class =?simpleDiv?, ?Here is a div with some attributes.? # html5