Merge pull request #3146 from c-blake/devel

Add MemFile text interface factored so users can optionally skip Nim …

tests/stdlib/tmemlines.nim

@@ -0,0 +1,5 @@
+import memfiles
+var inp = memfiles.open("readme.txt")
+for line in lines(inp):
+  echo("#" & line & "#")
+close(inp)

tests/stdlib/tmemlinesBuf.nim

@@ -0,0 +1,6 @@
+import memfiles
+var inp = memfiles.open("readme.txt")
+var buffer: TaintedString = ""
+for line in lines(inp, buffer):
+  echo("#" & line & "#")
+close(inp)

tests/stdlib/tmemslices.nim

@@ -0,0 +1,6 @@
+import memfiles
+var inp = memfiles.open("readme.txt")
+for mem in memSlices(inp):
+  if mem.size > 3:
+    echo("#" & $mem & "#")
+close(inp)