Closes #161 Coercion date datatype

NEWS.md

@@ -7,6 +7,8 @@
 
 * Added a check for character variable lengths up to 200 bytes in `xpt_validate()`(#91, #189).
 
+* Added xportr.character_metadata_types and xportr.numeric_metadata_types so that all R types, including dates, are handled by xportr_type. In case the R type is different from the metadata type, the variable is coerced (#161).
+
 ## Deprecation and Breaking Changes
 
 * The `label` argument from the `xportr_write()` function is deprecated in favor of the `metadata` argument. (#179)

R/type.R

@@ -5,18 +5,14 @@
 #' 'xportr.character_types' option is used to explicitly collapse the class of a
 #' column to character using `as.character`. Similarly, 'xportr.numeric_types'
 #' will collapse a column to a numeric type. If no type is passed for a
-#' variable and it isn't identifed as a timing variable, it is assumed to be numeric and coerced with `as.numeric`.
+#' variable, it is assumed to be numeric and coerced with `as.numeric`.
 #'
 #' Certain care should be taken when using timing variables. R serializes dates
 #' based on a reference date of 01/01/1970 where XPT uses 01/01/1960. This can
 #' result in dates being 10 years off when outputting from R to XPT if you're
 #' using a date class. For this reason, `xportr` will try to determine what
 #' should happen with variables that appear to be used to denote time.
 #'
-#' For variables that end in DT, DTM, or, TM, if they are not explicitly noted
-#' in 'xportr.numeric_types' or 'xportr.character_types', they are coerced to
-#' numeric results.
-#'
 #' @inheritParams xportr_length
 #'
 #' @section Messaging: `type_log()` is the primary messaging tool for