R: Set regular expressions to read input documents

pat_rnw {knitr} | R Documentation

## Set regular expressions to read input documents

### Description

These are convenience functions to set pre-defined pattern lists (the syntax to read input documents). The function names are built from corresponding file extensions, e.g. `pat_rnw()` can set the Sweave syntax to read Rnw documents.

### Usage

    pat_rnw()

    pat_brew()

    pat_tex()

    pat_html()

    pat_md()

    pat_rst()

    pat_asciidoc()

    pat_textile()

### Value

The patterns object `knit_patterns` is modified as a side effect.

### Examples

    # see how knit_patterns is modified
    knit_patterns$get()
    pat_rnw()
    knit_patterns$get()

    knit_patterns$restore()  # empty the list

[Package knitr version 1.20 Index]