Grab Begin/End of String to Character

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Description

beg2char - Grab from beginning of string to a character(s).

char2end - Grab from character(s) to end of string.

Usage

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beg2char(text.var, char = " ", noc = 1, include = FALSE)

char2end(text.var, char = " ", noc = 1, include = FALSE)

Arguments

text.var,

A character string

char

The character from which to grab until/from.

noc

Number of times the character appears before the grab.

include

logical. If TRUE includes the character in the grab.

Value

returns a vector of text with char on/forward removed.

Author(s)

Josh O'Brien, Justin Haynes and Tyler Rinker <tyler.rinker@gmail.com>.

References

http://stackoverflow.com/q/15909626/1000343

Examples

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## Not run: 
x <- c("a_b_c_d", "1_2_3_4", "<_?_._:")
beg2char(x, "_")
beg2char(x, "_", 2)
beg2char(x, "_", 3)
beg2char(x, "_", 4)
beg2char(x, "_", 3, include=TRUE)

char2end(x, "_")
char2end(x, "_", 2)
char2end(x, "_", 3)
char2end(x, "_", 4)
char2end(x, "_", 3, include=TRUE)

x2 <- gsub("_", " ", x)
char2end(x2, " ", 2)
beg2char(x2, " ", 2)

x3 <- gsub("_", "\\^", x)
char2end(x3, "^", 2)
beg2char(x3, "^", 2)

## End(Not run)

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