Added NDIFF_DIFF option.
diff --git a/Doc/lib/libdoctest.tex b/Doc/lib/libdoctest.tex
index c0bdf6d..0741aa0 100644
--- a/Doc/lib/libdoctest.tex
+++ b/Doc/lib/libdoctest.tex
@@ -356,6 +356,15 @@
actual outputs will be displayed using a context diff.
\end{datadesc}
+\begin{datadesc}{NDIFF_DIFF}
+ When specified, differences are computed by \code{difflib.Differ},
+ using the same algorithm as the popular \file{ndiff.py} utility.
+ This is the only method that marks differences within lines as
+ well as across lines. For example, if a line of expected output
+ contains digit \code{1} where actual output contains letter \code{l},
+ a line is inserted with a caret marking the mismatching column
+ positions.
+\end{datadesc}
A "doctest directive" is a trailing Python comment on a line of a doctest
example:
@@ -414,7 +423,8 @@
\versionchanged[Constants \constant{DONT_ACCEPT_BLANKLINE},
\constant{NORMALIZE_WHITESPACE}, \constant{ELLIPSIS},
- \constant{UNIFIED_DIFF}, and \constant{CONTEXT_DIFF}
+ \constant{UNIFIED_DIFF}, \constant{CONTEXT_DIFF}, and
+ \constant{NDIFF_DIFF}
were added; by default \code{<BLANKLINE>} in expected output
matches an empty line in actual output; and doctest directives
were added]{2.4}