rename: date->idate

Author: MichaelChirico

R/IDateTime.R

@@ -130,7 +130,7 @@ chooseOpsMethod.IDate = function(x, y, mx, my, cl, reverse) inherits(y, "Date")
   }
   ans = as.integer(unclass(e1) - unclass(e2))
   if (inherits(e2, "Date")) {
-    if (!isTRUE(getOption("datatable.old.diff.date"))) {
+    if (!isTRUE(getOption("datatable.old.diff.idate"))) {
       setattr(ans, "class", "difftime")
       setattr(ans, "units", "days")
     }

R/onLoad.R

@@ -93,7 +93,7 @@
     datatable.use.index=TRUE,           # global switch to address #1422
     datatable.prettyprint.char=NULL,    # FR #1091
     datatable.old.matrix.autoname=TRUE, # #7145: how data.table(x=1, matrix(1)) is auto-named set to change
-    datatable.old.diff.date=TRUE        # whether <IDate>-<IDate> gets difftime class set to change
+    datatable.old.diff.idate=TRUE        # whether <IDate>-<IDate> gets difftime class set to change
   )
   opts = opts[!names(opts) %chin% names(options())]
   options(opts)

man/data.table-options.Rd

@@ -114,7 +114,7 @@
       expressions like \code{data.table(x=1, cbind(1))} will be named. When \code{TRUE}, it will be named
       \code{V1}, otherwise it will be named \code{V2}.
     }
-    \item{\code{datatable.old.diff.date}}{Logical, default \code{TRUE}. Governs whether \code{t1 - t2},
+    \item{\code{datatable.old.diff.idate}}{Logical, default \code{TRUE}. Governs whether \code{t1 - t2},
       where \code{t1} and \code{t2} are both class \code{IDate}, gains the S3 class \code{difftime}.
       When \code{TRUE}, this class is assigned (with \code{units="days"}).
     }