Prettify some HTML code. It works for big files.
prettifyHTML(contents = NA, tabSize = NULL)The pretty code in a character string.
the code to be prettified; there are three possibilities for
this argument:
NA (default), to use the file currently opened in RStudio;
the path to a file;
or the code given as a character vector
number of spaces of the indentation (usually 2 or
4);
if NULL (the default), there are two possibilities:
if the contents is read from the current file in RStudio, then the
number of spaces will be the one you use in RStudio;
otherwise it is set to 2