Nothing
# maximum number of dimensions for a given hierarchy
max_nchar <- reactive({
max(nchar(data()))
})
# read the len/endpos for each level
# this is an input for hier_compute()
specs <- reactive({
req(input$nr_levels)
if (!modify_mode()) {
out <- sapply(1:input$nr_levels, function(i) {
input[[paste0("pos", i)]]
})
xx <- sapply(out, function(x) {
is.null(x)
})
if (sum(xx) > 0) {
return(NULL)
}
out
}
})
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