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## Copyright (c) 2013-2014, Marek Gagolewski and Bartek Tartanus
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#' @title
#' Replace Occurrences of a Fixed Pattern Matches
#'
#' @description
#' Replaces with the given replacement string every/first/last
#' substring of the input that matches the pattern.
#'
#' @details
#' Vectorized over \code{str}, \code{pattern}, and \code{replacement}.
#'
#' For natural language processing this function may be not give
#' you desired results. Refer to \link{stringi-search-fixed} for more details.
#'
#' These functions scan the input string for matches of the pattern.
#' Input that is not part of any match is left unchanged;
#' each match is replaced in the result by the replacement string.
#'
#' @param str character vector of strings to search in
#' @param pattern character vector of patterns to search for
#' @param replacement character vector of strings to replace with
#'
#' @return Each function returns a character vector.
#'
#' @examples
#' s <- "Lorem ipsum dolor sit amet, consectetur adipisicing elit."
#'
#' \dontshow{if (stri_install_check(silent=TRUE))}
#' stri_replace_all_fixed(s, " ", "#")
#'
#' \dontshow{if (stri_install_check(silent=TRUE))}
#' stri_replace_all_fixed(s, "o", "0")
#'
#' @export
#' @rdname stri_replace_fixed
#' @aliases stri_replace_all_fixed stri_replace_first_fixed stri_replace_last_fixed
#' @family search_fixed
#' @family search_replace
stri_replace_all_fixed <- function(str, pattern, replacement) {
   .Call("stri_replace_all_fixed", str, pattern, replacement,
         PACKAGE="stringi")
}


#' @export
#' @rdname stri_replace_fixed
stri_replace_first_fixed <- function(str, pattern, replacement) {
   .Call("stri_replace_first_fixed", str, pattern, replacement,
         PACKAGE="stringi")
}


#' @export
#' @rdname stri_replace_fixed
stri_replace_last_fixed <- function(str, pattern, replacement) {
   .Call("stri_replace_last_fixed", str, pattern, replacement,
         PACKAGE="stringi")
}