fix #146 chunks stuff pulled out completely

DESCRIPTION

@@ -7,7 +7,7 @@ Description: Provides a single interface to many sources of full text
     included for searching for articles, downloading full or partial
     text, downloading supplementary materials, converting to various
     data formats.
-Version: 1.1.0.9235
+Version: 1.1.3.9311
 License: MIT + file LICENSE
 Authors@R: c(
     person("Scott", "Chamberlain",
@@ -45,7 +45,8 @@ Imports:
 Suggests:
     roxygen2 (>= 6.1.1),
     testthat,
-    knitr
+    knitr,
+    pubchunks
 RoxygenNote: 6.1.1
 X-schema.org-applicationCategory: Literature 
 X-schema.org-keywords: text-mining, literature, pdf, xml, publications, citations, full-text, TDM

R/as.ft_data.R

@@ -25,13 +25,18 @@
 #' 
 #' # call as.ft_data
 #' x <- as.ft_data(path = dir)
+#' x <- as.ft_data()
 #' 
 #' # output lives underneath a special list index "cached" 
 #' #   representing already present files
 #' x$cached
 #' 
 #' # collect chunks
-#' # x %>% ft_collect %>% ft_chunks(c("doi", "title"))
+#' if (requireNamespace("pubchunks")) {
+#'   library(pubchunks)
+#'   res <- ft_collect(x)
+#'   pub_chunks(res, c("doi", "title")) %>% pub_tabularize()
+#' }
 as.ft_data <- function(path = NULL) {
   if (is.null(path)) path <- ftxt_cache$cache_path_get()
   if (!dir.exists(path)) stop("path does not exist")