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| -rw-r--r-- | docs/users_guide/glasgow_exts.xml | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/docs/users_guide/glasgow_exts.xml b/docs/users_guide/glasgow_exts.xml index 32581875d8..3a06019842 100644 --- a/docs/users_guide/glasgow_exts.xml +++ b/docs/users_guide/glasgow_exts.xml @@ -6750,6 +6750,18 @@ There must be no spaces in the token The quoted <replaceable>string</replaceable> can be arbitrary, and may contain newlines. </para></listitem> +<listitem><para> +The quoted <replaceable>string</replaceable> +finishes at the first occurrence of the two-character sequence <literal>"|]"</literal>. +Absolutely no escaping is performed. If you want to embed that character +sequence in the string, you must invent your own escape convention (such +as, say, using the string <literal>"|~]"</literal> instead), and make your +quoter function interpret <literal>"|~]"</literal> as <literal>"|]"</literal>. +One way to implement this is to compose your quoter with a pre-processing pass to +perform your escape conversion. See the +<ulink url="http://hackage.haskell.org/trac/ghc/ticket/5348"> +discussion in Trac</ulink> for details. +</para></listitem> </itemizedlist> </para></listitem> |