* [PATCH] Document interaction of 'print -P' and 'print -f'.
@ 2017-03-10 8:56 Daniel Shahaf
0 siblings, 0 replies; only message in thread
From: Daniel Shahaf @ 2017-03-10 8:56 UTC (permalink / raw)
To: zsh-workers
---
Doc/Zsh/builtins.yo | 3 +++
Test/D01prompt.ztst | 10 +++++++++-
2 files changed, 12 insertions(+), 1 deletion(-)
diff --git a/Doc/Zsh/builtins.yo b/Doc/Zsh/builtins.yo
index 37e3865..81c201f 100644
--- a/Doc/Zsh/builtins.yo
+++ b/Doc/Zsh/builtins.yo
@@ -1252,6 +1252,9 @@ Perform prompt expansion (see
ifzman(EXPANSION OF PROMPT SEQUENCES in zmanref(zshmisc))\
ifnzman(noderef(Prompt Expansion))\
).
+In combination with `tt(-f)',
+prompt escape sequences are parsed only within interpolated arguments,
+not within the format string.
)
item(tt(-r))(
Ignore the escape conventions of tt(echo).
diff --git a/Test/D01prompt.ztst b/Test/D01prompt.ztst
index 607ffb6..0818728 100644
--- a/Test/D01prompt.ztst
+++ b/Test/D01prompt.ztst
@@ -82,9 +82,12 @@
# We could test for that, but we can't be bothered.
# I hope LC_ALL is enough to make the format what's expected.
+# The $date2 assignment tests that %s is interpreted as a printf format
+# string, rather than as a prompt escape (end standout).
+
LC_ALL=C
date1=$(print -P %w)
- date2=$(print -P %W)
+ date2=$(print -P -f %s %W)
date3=$(print -P %D)
if [[ $date1 != [A-Z][a-z][a-z][[:blank:]]##[0-9]## ]]; then
print "Date \`$date1' is not in the form \`Day DD' (e.g. \`Mon 1'"
@@ -201,3 +204,8 @@
?+zsh_directory_name:14> return 0
?+fn:7> local d='~[<parent>:l]'
?+fn:8> print '~[<parent>:l]'
+
+# Test that format strings are not subject to prompt expansion
+ print -P -f '%%Sfoo%%s\n' bar
+0:print -P -f
+>%Sfoo%s
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2017-03-10 8:56 [PATCH] Document interaction of 'print -P' and 'print -f' Daniel Shahaf
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