Maeswrap (version 1.7)

revchar: Reverse a character string.

Description

Reverses the characters in a character string, unless a vector is supplied, in which case reverses the element of the vector.

Usage

revchar(x)

Arguments

x

A character vector (typically of length 1).

Value

A vector.

Details

When a character vector of length > 1 is provided, reverses the elements of the vector, not the characters itself.

References

None.

See Also

rev.default,substr,strsplit

Examples

## Not run: 
# # Take a substring, counting from the end:
# substrfromend <- function(x,start,stop)revchar(substr(revchar(x),start,stop))
# substrfromend('filename.txt', 1,3)
# 
# # Check if a word is a palindrome:
# s <- 'saippuakivikauppias'
# s == revchar(s)
# 
# # A semordnilap:
# cat('I am so stressed, I need to eat', revchar('stressed'),'\n')
# ## End(Not run)