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#' Gets alignment
#'
#' @param index The index of the align parameter of interest
#' @family hidden helper functions for
#' @keywords internal
#' @inheritParams addHtmlTableStyle
prGetAlign <- function(align,
index,
style_list = NULL,
spacerCell = FALSE,
followed_by_spacer_cell = FALSE,
previous_was_spacer_cell = FALSE) {
segm_rgx <- "[^lrc]*[rlc][^lrc]*"
res_align <- align
align <- ""
# Loop to remove every element prior to the one of interest
for (i in 1:index) {
if (nchar(res_align) == 0) {
stop("Requested column outside of span, ", index, " > ", i)
}
rmatch <- regexpr(segm_rgx, res_align)
lrc_data <- substr(res_align, 1, rmatch + attr(rmatch, "match.length") - 1)
res_align <- substring(res_align, rmatch + attr(rmatch, "match.length"))
}
styles <- c()
border_in_spacer_cell <- FALSE
if (!is.null(style_list) && style_list$spacer.celltype == "double_cell") {
border_in_spacer_cell = TRUE
}
border_position <- NULL
if (grepl("^\\|", lrc_data)) {
border_position <- "left"
}
if (grepl("\\|$", lrc_data)) {
border_position <- c(border_position, "right")
}
border_style <- list(default = getOption("htmlTable.css.border", default = "1px solid black"))
if (!is.null(border_position)) {
for (pos in border_position) {
border_name <- paste0("border-", pos)
border_style[[pos]] <- getOption(paste0("htmlTable.css.", border_name),
default = border_style$default)
if (!spacerCell &&
(!border_in_spacer_cell ||
(!followed_by_spacer_cell && pos == "right") ||
(!previous_was_spacer_cell && pos == "left"))) {
styles[border_name] <- border_style[[pos]]
}
}
}
if (grepl("l", lrc_data)) {
styles["text-align"] <- "left"
}
if (grepl("c", lrc_data)) {
styles["text-align"] <- "center"
}
if (grepl("r", lrc_data)) {
styles["text-align"] <- "right"
}
return(structure(styles,
has_border = !is.null(border_position),
border_position = border_position,
border_style = border_style))
}
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