X-Git-Url: https://git.cworth.org/git?a=blobdiff_plain;f=faq.mdwn;h=7e41e961b576e79a6c405d626d5a5937b6869c8d;hb=dcd9cd78af2d41b45b5c53a5f89d0127637098c2;hp=92a2ef6ba9ffd1cf1f66492ebb021771c1bf52e9;hpb=3797cfa7d8e4a63376d8dbb9b8b3e649b89bca48;p=notmuch-wiki

diff --git a/faq.mdwn b/faq.mdwn
index 92a2ef6..7e41e96 100644
--- a/faq.mdwn
+++ b/faq.mdwn
@@ -59,8 +59,8 @@ Next, use that to query the messages:
 
 ## How do I search for punctuation, specific special characters, or regexp?
 
-Please see the [[notmuch-search-terms manual
-page|manpages/notmuch-search-terms-7]] first.
+Please see the [notmuch-search-terms manual
+page](https://notmuchmail.org/doc/latest/man7/notmuch-search-terms.html) first.
 
 The main thing to understand is that Xapian, and therefore Notmuch, searches are
 closer to natural language searches than regular expression
@@ -69,6 +69,17 @@ searches. Punctuation is mostly ignored.
 The boolean prefix searches (see Boolean and Probabilistic Prefixes in the man
 page), such as tag: or path: searches, need an exact match.
 
+For [specific
+fields](https://notmuchmail.org/doc/latest/man7/notmuch-search-terms.html#search-prefixes)
+it is possible to use regex searches (although these are often
+noticeably slower than native Xapian queries). The limited set of
+fields is a quirk of implementation which requires a Xapian "value
+slot" in the database schema. Adding regex support for more fields to
+would require of adding more value slots to the schema. The
+performance impact of that needs to be experimentally evaluated, and
+assuming it is not too bad, some database upgrade code would need to
+be written.
+
 ## How do I search for folders or paths with spaces?
 
 The spaces in the names must be escaped. For example if you use bash or zsh,
@@ -95,8 +106,8 @@ This is required in order to run the `pre-new` and `post-new` hooks.
 No. Tagging is message based.
 
 It is possible, however, to make tags propagate to all messages in a thread
-using a little bit of scripting in the [[post-new
-hook|manpages/notmuch-hooks-5]]. For example, to add the muted tag to all
+using a little bit of scripting in the [post-new
+hook](https://notmuchmail.org/doc/latest/man5/notmuch-hooks.html). For example, to add the muted tag to all
 messages in threads that have at least one message with the muted tag:
 
         THREAD_TAGS="muted"