.readText

A <code><a rd-options="base" href="/link/character?package=R.rsp&version=0.43.1&to=base" data-mini-rdoc="base::character">character</a></code> string specifying a local file or a URL,
 or a <code><a rd-options="base:connections" href="/link/connection?package=R.rsp&version=0.43.1&to=base%3Aconnections" data-mini-rdoc="base:connections::connection">connection</a></code>.

A <code><a rd-options="base" href="/link/numeric?package=R.rsp&version=0.43.1&to=base" data-mini-rdoc="base::numeric">numeric</a></code> scalar specifying the maximum age (in seconds)
 of cached URL contents before downloading and recaching.
 If zero or less, the URL will always be downloaded.

maxAge

Reads the content of a local or an online text file.

internal

file

The RSP markup language makes any text-based document come alive. RSP provides a powerful markup for controlling the content and output of LaTeX, HTML, Markdown, AsciiDoc, Sweave and knitr documents (and more), e.g. 'Today's date is <%=Sys.Date()%>'. Contrary to many other literate programming languages, with RSP it is straightforward to loop over mixtures of code and text sections, e.g. in month-by-month summaries. RSP has also several preprocessing directives for incorporating static and dynamic contents of external files (local or online) among other things. Functions rstring() and rcat() make it easy to process RSP strings, rsource() sources an RSP file as it was an R script, while rfile() compiles it (even online) into its final output format, e.g. rfile('report.tex.rsp') generates 'report.pdf' and rfile('report.md.rsp') generates 'report.html'. RSP is ideal for self-contained scientific reports and R package vignettes. It's easy to use - if you know how to write an R script, you'll be up and running within minutes.

Henrik Bengtsson

R.rsp

Dynamic Generation of Scientific Reports

.readText function

When reading online URLs, it may take time a significant time to
 read its content. If the content is changing rarely, it is possible
 to cache the content locally. If a cached version is found, then it
 is read instead.
 It is possible to control how often a file should be recached. If the
 cache is older than argument <code>maxAge</code> (in seconds), then the file
 is redownloaded and recached.

Caching URL

All occurrences of <code>\r\n</code> and <code>\r</code> are replaced with
 <code>\n</code> such that all lines are ending in <code>\n</code> regardless
 of encoding.

Newline substitution

A <code><a rd-options='base' href='character'>character</a></code> string specifying a local file or a URL,
 or a <code><a rd-options='base:connections' href='connection'>connection</a></code>.

A <code><a rd-options='base' href='numeric'>numeric</a></code> scalar specifying the maximum age (in seconds)
 of cached URL contents before downloading and recaching.
 If zero or less, the URL will always be downloaded.

.readText: Reads the content of a local or an online text file

Description

Usage

Arguments

Value

Caching URL

Newline substitution