Clarified lazy block quote examples. (Closes #328.)

1 files changed, 22 insertions, 3 deletions

diff --git a/spec.txt b/spec.txt
index 6fde458..4fff84d 100644
--- a/spec.txt
+++ b/spec.txt
@@ -2335,9 +2335,16 @@ foo</p>
 </blockquote>
 .
 
-Laziness only applies to lines that are continuations of
-paragraphs. Lines containing characters or indentation that indicate
-block structure cannot be lazy.
+Laziness only applies to lines that would have been continuations of
+paragraphs had they been prepended with `>`.  For example, the
+`>` cannot be omitted in the second line of
+
+``` markdown
+> foo
+> ---
+```
+
+without changing the meaning:
 
 .
 > foo
@@ -2349,6 +2356,15 @@ block structure cannot be lazy.
 <hr />
 .
 
+Similarly, if we omit the `>` in the second line of
+
+``` markdown
+> - foo
+> - bar
+```
+
+then the block quote ends after the first line:
+
 .
 > - foo
 - bar
@@ -2363,6 +2379,9 @@ block structure cannot be lazy.
 </ul>
 .
 
+For the same reason, we can't omit the `>` in front of
+subsequent lines of an indented or fenced code block:
+
 .
 >     foo
     bar