X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=R%2Fread.nexus.R;h=abcd1314b8d3b7b91c7449a580446f453577c7b7;hb=2419de65ffb4f7c45eb8c2448bcba3d0df64744f;hp=3edcd3f5903b610f42edce93884ad2665cb640a0;hpb=0d199dba8a3608f86e89673cc4623755a3ff5a72;p=ape.git

diff --git a/R/read.nexus.R b/R/read.nexus.R
index 3edcd3f..abcd131 100644
--- a/R/read.nexus.R
+++ b/R/read.nexus.R
@@ -1,4 +1,4 @@
-## read.nexus.R (2009-04-01)
+## read.nexus.R (2009-11-21)
 
 ##   Read Tree File in Nexus Format
 
@@ -9,12 +9,20 @@
 
 .treeBuildWithTokens <- function(x)
 {
+    ## remove potential node labels; see ?read.nexus for justification
+    node.label <- gsub("[:;].*$", "", strsplit(x, ")")[[1]][-1])
+    has.node.labels <- FALSE
+    if (any(node.label != "")) {
+        x <- gsub(")[^:]*:", "):", x)
+        x <- gsub(")[^:]*;", ");", x) # if there's no root edge
+        has.node.labels <- TRUE
+    }
     phy <- .Call("treeBuildWithTokens", x, PACKAGE = "ape")
     dim(phy[[1]]) <- c(length(phy[[1]])/2, 2)
-    nms <- c("edge", "edge.length", "Nnode", "node.label")
-    if (length(phy) == 5) nms <- c(nms, "root.edge")
+    nms <- c("edge", "edge.length", "Nnode", "root.edge")
+    if (length(phy) == 3) nms <- nms[-4]
     names(phy) <- nms
-    if (!sum(phy[[4]])) phy[[4]] <- NULL
+    if (has.node.labels) phy$node.label <- node.label
     class(phy) <- "phylo"
     phy
 }
@@ -45,7 +53,7 @@ clado.build <- function(tp)
         obj <- list(edge = matrix(c(2, 1), 1, 2), Nnode = 1)
         tp <- unlist(strsplit(tp, "[\\(\\);]"))
         obj$tip.label <- tp[2]
-        if (length(tp) == 3) obj$node.label <- tp[3]
+        if (tp[3] != "") obj$node.label <- tp[3]
         class(obj) <- "phylo"
         return(obj)
     }
@@ -224,7 +232,16 @@ read.nexus <- function(file, tree.names = NULL)
         }
     } else {
         if (!is.null(tree.names)) names(trees) <- tree.names
-        if (translation) attr(trees, "TipLabel") <- TRANS[, 2]
+        if (translation) {
+            if (length(colon) == Ntree) # .treeBuildWithTokens() was used
+                attr(trees, "TipLabel") <- TRANS[, 2]
+            else { # reassign the tip labels then compress
+                for (i in 1:Ntree)
+                    trees[[i]]$tip.label <-
+                        TRANS[, 2][as.numeric(trees[[i]]$tip.label)]
+                trees <- .compressTipLabel(trees)
+            }
+        }
         class(trees) <- "multiPhylo"
     }
     if (length(grep("[\\/]", file)) == 1)