tmpl_glue: glue based template engine

In presser: Lightweight Web Server for Testing

Description

Use this template engine to create pages with glue templates. See glue::glue() for the syntax.

Usage

tmpl_glue(
  sep = "",
  open = "{",
  close = "}",
  na = "NA",
  transformer = NULL,
  trim = TRUE
)

Arguments

sep	Separator used to separate elements.
open	The opening delimiter. Doubling the full delimiter escapes it.
close	The closing delimiter. Doubling the full delimiter escapes it.
na	Value to replace NA values with. If NULL missing values are propagated, that is an NA result will cause NA output. Otherwise the value is replaced by the value of na.
transformer	A function taking three parameters code, envir and data used to transform the output of each block before during or after evaluation.
trim	Whether to trim the input template with glue::trim() or not.

Value

Template function.

Examples

# See th 'hello' app at
hello_root <- system.file(package = "presser", "examples", "hello")
hello_root

app <- new_app()
app$engine("txt", tmpl_glue())
app$use(mw_log())


app$get("/view", function(req, res) {
  txt <- res$render("test")
  res$
    set_type("text/plain")$
    send(txt)
})

# Switch to the app's root: setwd(hello_root)
# Now start the app with: app$listen(3000L)
# Or start it in another process: new_process(app)

presser documentation built on July 1, 2020, 5:49 p.m.