[src/trunk]: src/usr.bin/make/unit-tests tests/make: demonstrate newline inje...

[rillig <rillig%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/469caab55a91
branches:  trunk
changeset: 379893:469caab55a91
user:      rillig <rillig%NetBSD.org@localhost>
date:      Fri Jun 25 15:56:02 2021 +0000

description:
tests/make: demonstrate newline injection in .for loop

diffstat:

 usr.bin/make/unit-tests/directive-for-escape.exp |  16 +++++++++++++++-
 usr.bin/make/unit-tests/directive-for-escape.mk  |  10 +++++++++-
 2 files changed, 24 insertions(+), 2 deletions(-)

diffs (45 lines):

diff -r 4f39996f7fe4 -r 469caab55a91 usr.bin/make/unit-tests/directive-for-escape.exp
--- a/usr.bin/make/unit-tests/directive-for-escape.exp  Fri Jun 25 13:41:33 2021 +0000
+++ b/usr.bin/make/unit-tests/directive-for-escape.exp  Fri Jun 25 15:56:02 2021 +0000
@@ -79,4 +79,18 @@ For: loop body:
 make: "directive-for-escape.mk" line 118: eight $$$$ and no cents.
 make: "directive-for-escape.mk" line 119: eight dollardollardollardollar and no cents.
 make: "directive-for-escape.mk" line 128: eight  and no cents.
-exit status 0
+For: end for 1
+For: loop body:
+.  info short: ${:U"
+"}
+.  info long: ${:U"
+"}
+make: Unclosed variable expression, expecting '}' for modifier "U"" of variable "" with value """
+make: "directive-for-escape.mk" line 134: short: "
+make: "directive-for-escape.mk" line 135: Invalid line type
+make: Unclosed variable expression, expecting '}' for modifier "U"" of variable "" with value """
+make: "directive-for-escape.mk" line 136: long: "
+make: "directive-for-escape.mk" line 137: Invalid line type
+make: Fatal errors encountered -- cannot continue
+make: stopped in unit-tests
+exit status 1
diff -r 4f39996f7fe4 -r 469caab55a91 usr.bin/make/unit-tests/directive-for-escape.mk
--- a/usr.bin/make/unit-tests/directive-for-escape.mk   Fri Jun 25 13:41:33 2021 +0000
+++ b/usr.bin/make/unit-tests/directive-for-escape.mk   Fri Jun 25 15:56:02 2021 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: directive-for-escape.mk,v 1.8 2021/06/24 23:22:17 rillig Exp $
+# $NetBSD: directive-for-escape.mk,v 1.9 2021/06/25 15:56:02 rillig Exp $
 #
 # Test escaping of special characters in the iteration values of a .for loop.
 # These values get expanded later using the :U variable modifier, and this
@@ -127,4 +127,12 @@ closing-brace=             }               # guard against an
 ${closing-brace}=      <closing-brace> # alternative interpretation
 .info eight ${$}${$}${$}${$} and no cents.
 
+# What happens if the values from the .for loop contain a literal newline?
+# Oops, the newline is added verbatim to the loop body, where it is later
+# interpreted as an ordinary newline.
+.for i in "${.newline}"
+.  info short: $i
+.  info long: ${i}
+.endfor
+
 all: