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#############################################################################
#
# XLConnect
# Copyright (C) 2010-2024 Mirai Solutions GmbH
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
#
#############################################################################
#############################################################################
#
# Converting Excel cell references to row and column based cell references
#
# Author: Martin Studer, Mirai Solutions GmbH
#
#############################################################################
aref2idx <- function(x) {
if(!is.character(x)) stop("x must be a vector of area references (character)!")
t(sapply(x, function(xx) {
as.vector(t(cref2idx(strsplit(xx, split = ":", fixed = TRUE)[[1]])))
}, USE.NAMES = FALSE))
}
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