infuse: Infuse a template with values.
In infuser: A Very Basic Templating Engine

For more info and usage examples see the README on the infuser github page. To help prevent SQL injection attacks (or other injection attacks), use a transformation function to escape special characters and provide it through the transform_function argument. build_sql is a great default escaping function for SQL templating. For templating in other languages you will need to build/specify your own escaping function.

infuse(file_or_string, ...,
  variable_identifier = getOption("variable_identifier"),
  default_char = "|", collapse_char = ",",
  transform_function = function(value) return(value),
  verbose = getOption("verbose"), simple_character = FALSE,
  strict = FALSE)

`file_or_string`	the template file or a character string containing the template
`...`	different keys with related values, used to fill in the template (if first passed item is a list/environment the contents of this will be processed instead)
`variable_identifier`	the opening and closing character that denounce a variable in the template, defaults to `c("{{", "}}")` and can be set persistently using e.g. `options(variable_identifier=c("{{", "}}"))`
`default_char`	the character use to specify a default after
`collapse_char`	the character used to collapse a supplied vector
`transform_function`	a function through which all specified values are passed, can be used to make inputs safe(r). dplyr::build_sql is a good default for SQL templating.
`verbose`	verbosity level
`simple_character`	if `TRUE` returns only a character vector, else adds the `infuser` class to the returned object.
`strict`	if `TRUE` stops processing when a requested parameter is not supplied, else will simply leave the parameter as-is