# Copyright 2017 Patrick O. Perry.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
utf8_format <- function(x, trim = FALSE, chars = NULL, justify = "left",
width = NULL, na.encode = TRUE, quote = FALSE,
na.print = NULL, print.gap = NULL, utf8 = NULL, ...) {
if (is.null(x)) {
return(NULL)
}
if (!is.character(x)) {
stop("argument is not a character object")
}
with_rethrow({
trim <- as_option("trim", trim)
chars <- as_chars("chars", chars)
justify <- as_justify("justify", justify)
width <- as_integer_scalar("width", width)
na.encode <- as_option("na.encode", na.encode)
quote <- as_option("quote", quote)
na.print <- as_na_print("na.print", na.print)
print.gap <- as_print_gap("print_gap", print.gap)
utf8 <- as_output_utf8("utf8", utf8)
})
ellipsis <- "\u2026"
iellipsis <- iconv(ellipsis, "UTF-8", "")
if (is.na(iellipsis) || identical(iellipsis, "...")) {
ellipsis <- "..."
wellipsis <- 3L
} else {
wellipsis <- 1L
}
if (is.null(chars) && length(x) > 0) {
linewidth <- getOption("width")
quotes <- if (quote) 2 else 0
gap <- if (is.null(print.gap)) 1 else NULL
dim <- dim(x)
dimnames <- dimnames(x)
names <- if (is.null(dimnames)) names(x) else dimnames[[1]]
if (is.null(names)) {
comma <- length(dim) > 1
namewidth <- floor(log10(length(x)) + 1) + 2 + comma
} else if (length(dim) > 1) {
namewidth <- max(0, utf8_width(names, utf8 = utf8))
} else {
namewidth <- 0
}
chars <- (linewidth - wellipsis - quotes - gap - namewidth)
chars <- max(chars, 12)
}
.Call(
rutf8_utf8_format, x, trim, chars, justify, width, na.encode,
quote, na.print, ellipsis, wellipsis, utf8
)
}
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.