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-rw-r--r--docs/fs.md5
1 files changed, 4 insertions, 1 deletions
diff --git a/docs/fs.md b/docs/fs.md
index 07b380aa..45a64e44 100644
--- a/docs/fs.md
+++ b/docs/fs.md
@@ -442,7 +442,10 @@ whose `{` or `a`/`c`/`i` text never ended fails and changes nothing
unfinished was cut short. A fragment never runs on its
own. A line or Edit block held past 1 MiB is refused (EINVAL).
-A look takes acme's addresses after a colon (editors/acme/look.c:450): a
+`@p<serial>:<address>` addresses the pane with that serial as `file:<address>`
+does a file, with any sam address (`/re/`, `#n`, `$`, `0/re/`, a range); a
+miss, and a serial no pane has, each log an `err`, and look reads back
+empty. A look takes acme's addresses after a colon (editors/acme/look.c:450): a
line written to `look` as `file:/re/`, `file:#n`, `file:$` or any address
opens (or finds) the file and selects what the address names. **The
address is evaluated from the file's dot**, as acme's is: `file:/re/`