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PATCH: TMPSUFFIX [redux]



This goes on top of 39470.

diff --git a/Doc/Zsh/params.yo b/Doc/Zsh/params.yo
index 03625ce..c7d84b9 100644
--- a/Doc/Zsh/params.yo
+++ b/Doc/Zsh/params.yo
@@ -1547,6 +1547,15 @@ A pathname prefix which the shell will use for all temporary files.
 Note that this should include an initial part for the file name as
 well as any directory names.  The default is `tt(/tmp/zsh)'.
 )
+vindex(TMPSUFFIX)
+item(tt(TMPSUFFIX))(
+A filename suffix which the shell will use for temporary files created
+by process substitutions (e.g., `tt(=LPAR()var(list)RPAR())').
+Note that the value should include a leading dot `tt(.)' if intended
+to be interpreted as a file extension.  The default is not to append
+any suffix, thus this parameter should be assigned only when needed
+and then unset again.
+)
 vindex(watch)
 vindex(WATCH)
 item(tt(watch) <S> <Z> (tt(WATCH) <S>))(
diff --git a/Src/exec.c b/Src/exec.c
index 04868bd..e253d7b 100644
--- a/Src/exec.c
+++ b/Src/exec.c
@@ -4421,6 +4421,15 @@ getoutputfile(char *cmd, char **eptr)
 	if (!s)
 	    child_unblock();
 	return NULL;
+    } else {
+	char *suffix = getsparam("TMPSUFFIX");
+	if (suffix && *suffix && !strstr(suffix, "/")) {
+	    suffix = dyncat(nam, unmeta(suffix));
+	    if (link(nam, suffix) == 0) {
+		addfilelist(nam, 0);
+		nam = ztrdup(suffix);
+	    }
+	}
     }
     addfilelist(nam, 0);
 



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