Initial support for ad hoc recipes (still work in progress)

8 files changed, 538 insertions, 39 deletions

diff --git a/tests/dependency/chain/testscript b/tests/dependency/chain/testscript
index 9232840..ac4a946 100644
--- a/tests/dependency/chain/testscript
+++ b/tests/dependency/chain/testscript
@@ -3,7 +3,7 @@
 
 .include ../../common.testscript
 
-: basic
+: basics
 :
 $* <<EOI 2>>/~%EOE%
 ./: dir{x}: dir{a}
diff --git a/tests/dependency/recipe/buildfile b/tests/dependency/recipe/buildfile
new file mode 100644
index 0000000..3dc5452
--- /dev/null
+++ b/tests/dependency/recipe/buildfile
@@ -0,0 +1,4 @@
+# file      : tests/dependency/recipe/buildfile
+# license   : MIT; see accompanying LICENSE file
+
+./: testscript $b
diff --git a/tests/dependency/recipe/testscript b/tests/dependency/recipe/testscript
new file mode 100644
index 0000000..5510e3c
--- /dev/null
+++ b/tests/dependency/recipe/testscript
@@ -0,0 +1,344 @@
+# file      : tests/dependency/recipe/testscript
+# license   : MIT; see accompanying LICENSE file
+
+.include ../../common.testscript
+
+# Note: in the parser we have to handle recipes for the with/without
+# prerequisites cases separately. So we try to cover both here.
+
+: basics
+:
+$* <<EOI 2>>/~%EOE%
+alias{x}: alias{z}
+{{
+  cmd
+}}
+dump alias{x}
+EOI
+<stdin>:5:1: dump:
+%  .+/alias\{x\}: .+/:alias\{z\}%
+  {{
+    cmd
+  }}
+EOE
+
+: basics-replay
+:
+$* <<EOI 2>>/~%EOE%
+alias{x y}: alias{z}
+{{
+  cmd
+}}
+dump alias{y}
+EOI
+<stdin>:5:1: dump:
+%  .+/alias\{y\}: .+/:alias\{z\}%
+  {{
+    cmd
+  }}
+EOE
+
+: basics-header
+:
+$* <<EOI 2>>/~%EOE%
+alias{x}:
+%
+{{
+  cmd
+}}
+dump alias{x}
+EOI
+<stdin>:6:1: dump:
+%  .+/alias\{x\}:%
+  {{
+    cmd
+  }}
+EOE
+
+: basics-header-replay
+:
+$* <<EOI 2>>/~%EOE%
+alias{x y}:
+%
+{{
+  cmd
+}}
+dump alias{y}
+EOI
+<stdin>:6:1: dump:
+%  .+/alias\{y\}:%
+  {{
+    cmd
+  }}
+EOE
+
+: basics-lang
+:
+$* <<EOI 2>>/~%EOE%
+alias{x}:
+{{ c++
+  void f ();
+}}
+dump alias{x}
+EOI
+<stdin>:5:1: dump:
+%  .+/alias\{x\}:%
+  {{ c++
+    void f ();
+  }}
+EOE
+
+: with-vars
+:
+$* <<EOI 2>>/~%EOE%
+alias{x}:
+{
+  var = x
+}
+{{
+  cmd
+}}
+dump alias{x}
+EOI
+<stdin>:8:1: dump:
+%  .+/alias\{x\}:%
+  {
+    var = x
+  }
+  {{
+    cmd
+  }}
+EOE
+
+: with-vars-replay
+:
+$* <<EOI 2>>/~%EOE%
+alias{x y}: alias{z}
+{
+  var = x
+}
+{{
+  cmd
+}}
+dump alias{y}
+EOI
+<stdin>:8:1: dump:
+%  .+/alias\{y\}: .+/:alias\{z\}%
+  {
+    var = x
+  }
+  {{
+    cmd
+  }}
+EOE
+
+: with-vars-header
+:
+$* <<EOI 2>>/~%EOE%
+alias{x}: alias{z}
+{
+  var = x
+}
+%
+{{
+  cmd
+}}
+dump alias{x}
+EOI
+<stdin>:9:1: dump:
+%  .+/alias\{x\}: .+/:alias\{z\}%
+  {
+    var = x
+  }
+  {{
+    cmd
+  }}
+EOE
+
+: with-vars-header-replay
+:
+$* <<EOI 2>>/~%EOE%
+alias{x y}:
+{
+  var = x
+}
+%
+{{
+  cmd
+}}
+dump alias{y}
+EOI
+<stdin>:9:1: dump:
+%  .+/alias\{y\}:%
+  {
+    var = x
+  }
+  {{
+    cmd
+  }}
+EOE
+
+: chain
+:
+$* <<EOI 2>>/~%EOE%
+alias{x}:
+{{
+  cmd1
+}}
+{{{
+  cmd2
+}}}
+dump alias{x}
+EOI
+<stdin>:8:1: dump:
+%  .+/alias\{x\}:%
+  {{
+    cmd1
+  }}
+  {{{
+    cmd2
+  }}}
+EOE
+
+: chain-replay
+:
+$* <<EOI 2>>/~%EOE%
+alias{x y}: alias{z}
+{{
+  cmd1
+}}
+{{{
+  cmd2
+}}}
+dump alias{y}
+EOI
+<stdin>:8:1: dump:
+%  .+/alias\{y\}: .+/:alias\{z\}%
+  {{
+    cmd1
+  }}
+  {{{
+    cmd2
+  }}}
+EOE
+
+: chain-header
+:
+$* <<EOI 2>>/~%EOE%
+alias{x}: alias{z}
+
+{{
+  cmd1
+}}
+
+%
+{{{
+  cmd2
+}}}
+dump alias{x}
+EOI
+<stdin>:11:1: dump:
+%  .+/alias\{x\}: .+/:alias\{z\}%
+  {{
+    cmd1
+  }}
+  {{{
+    cmd2
+  }}}
+EOE
+
+: chain-header-replay
+:
+$* <<EOI 2>>/~%EOE%
+alias{x y}:
+
+{{
+  cmd1
+}}
+
+%
+{{{
+  cmd2
+}}}
+dump alias{y}
+EOI
+<stdin>:11:1: dump:
+%  .+/alias\{y\}:%
+  {{
+    cmd1
+  }}
+  {{{
+    cmd2
+  }}}
+EOE
+
+: unterminated
+:
+$* <<EOI 2>>EOE != 0
+alias{x}:
+{{{
+  cmd
+}}
+EOI
+<stdin>:5:1: error: unterminated recipe block
+  <stdin>:2:1: info: recipe block starts here
+EOE
+
+: expected-lang
+:
+$* <<EOI 2>>EOE != 0
+alias{x}:
+{{ $lang
+  cmd
+}}
+EOI
+<stdin>:2:4: error: expected recipe language instead of '$'
+EOE
+
+: header-attribute
+:
+$* <<EOI 2>>/~!EOE!
+alias{x}:
+% [diag=gen]
+{{
+  cmd
+}}
+dump alias{x}
+EOI
+<stdin>:6:1: dump:
+!  .+/alias\{x\}:!
+  % [diag=gen]
+  {{
+    cmd
+  }}
+EOE
+
+: header-attribute-replay
+:
+$* <<EOI 2>>/~!EOE!
+alias{x y}:
+% [diag=gen]
+{{
+  cmd
+}}
+dump alias{y}
+EOI
+<stdin>:6:1: dump:
+!  .+/alias\{y\}:!
+  % [diag=gen]
+  {{
+    cmd
+  }}
+EOE
+
+: header-missing-block
+:
+$* <<EOI 2>>EOE != 0
+alias{x}:
+%
+{
+  cmd
+}
+EOI
+<stdin>:3:1: error: expected recipe block instead of '{'
+EOE
diff --git a/tests/test/script/builtin/mv.testscript b/tests/test/script/builtin/mv.testscript
index 31e2603..764c1e0 100644
--- a/tests/test/script/builtin/mv.testscript
+++ b/tests/test/script/builtin/mv.testscript
@@ -21,8 +21,8 @@
       : Moving path outside the testscript working directory fails.
       :
       $c <<EOI && $b
-        mv ../../a/b/c ./c 2>>/~%EOE% == 1
-        %mv: '.+/fail/a/b/c' is out of working directory '.+/fail/test'%
+        mv ../../a/b/c ./c 2>>/EOE == 1
+        mv: 'a/b/c' is out of working directory 'test/'
         EOE
         EOI
 
@@ -84,14 +84,14 @@
       : src
       :
       $c <<EOI && $b
-        mv $~ b 2>"mv: '$~' contains test working directory '$~'" != 0
+        mv $~ b 2>/"mv: 'test/1/' contains test working directory 'test/1/'" != 0
         EOI
 
       : dst
       :
       $c <<EOI && $b
         mkdir a;
-        mv a "$~" 2>"mv: '$~' contains test working directory '$~'" != 0
+        mv a "$~" 2>/"mv: 'test/1' contains test working directory 'test/1/'" != 0
         EOI
     }
 
diff --git a/tests/test/script/builtin/rm.testscript b/tests/test/script/builtin/rm.testscript
index 5b00042..21ec2a9 100644
--- a/tests/test/script/builtin/rm.testscript
+++ b/tests/test/script/builtin/rm.testscript
@@ -11,7 +11,7 @@
   : Removing scope directory fails.
   :
   $c <<EOI && $b
-    rm -r ./ 2>"rm: '$~' contains test working directory '$~'" == 1
+    rm -r ./ 2>/"rm: 'test/1/' contains test working directory 'test/1/'" == 1
     EOI
 }
 
@@ -28,8 +28,8 @@
     : Removing path outside the testscript working directory fails.
     :
     $c <<EOI && $b
-      rm ../../a/b/c 2>>/~%EOE% == 1
-      %rm: '.+/path/outside-scope/fail/a/b/c' is out of working directory '.+/path/outside-scope/fail/test'%
+      rm ../../a/b/c 2>>/EOE == 1
+      rm: 'a/b/c' is out of working directory 'test/'
       EOE
       EOI
 
diff --git a/tests/test/script/builtin/rmdir.testscript b/tests/test/script/builtin/rmdir.testscript
index 269dd58..a63a5dd 100644
--- a/tests/test/script/builtin/rmdir.testscript
+++ b/tests/test/script/builtin/rmdir.testscript
@@ -11,7 +11,7 @@
   : Removing scope directory fails.
   :
   $c <<EOI && $b
-  rmdir ./ 2>"rmdir: '$~' contains test working directory '$~'" == 1
+  rmdir ./ 2>/"rmdir: 'test/1/' contains test working directory 'test/1/'" == 1
   EOI
 
   : outside-scope
@@ -24,8 +24,8 @@
     : Removing directory outside the testscript working directory fails.
     :
     $c <<EOI && $b
-    rmdir ../../a/b/c 2>>/~%EOE% == 1
-    %rmdir: '.+/dir/outside-scope/fail/a/b/c/' is out of working directory '.+/dir/outside-scope/fail/test'%
+    rmdir ../../a/b/c 2>>/EOE == 1
+    rmdir: 'a/b/c/' is out of working directory 'test/'
     EOE
     EOI
 
diff --git a/tests/test/script/runner/cleanup.testscript b/tests/test/script/runner/cleanup.testscript
index e39ae95..03153e4 100644
--- a/tests/test/script/runner/cleanup.testscript
+++ b/tests/test/script/runner/cleanup.testscript
@@ -56,7 +56,7 @@ b += --no-column
   : Test explicit cleanup of a file out of the testscript working directory.
   :
   $c <'$* &../../a' && $b 2>>/EOE != 0
-  testscript:1: error: file cleanup ../../a is out of working directory test/
+  testscript:1: error: file cleanup ../../a is out of working directory 'test/'
     info: test id: 1
   EOE
 
@@ -116,7 +116,7 @@ b += --no-column
   : Test cleanup of a directory out of the testscript working directory.
   :
   $c <'$* &../../a/' && $b 2>>/EOE != 0
-  testscript:1: error: directory cleanup ../../a/ is out of working directory test/
+  testscript:1: error: directory cleanup ../../a/ is out of working directory 'test/'
     info: test id: 1
   EOE
 
@@ -150,7 +150,7 @@ b += --no-column
     : dir
     :
     $c <'$* -d a/b' && $b 2>>/EOE != 0
-    testscript:1: error: registered for cleanup directory test/1/ is not empty
+    testscript:1: error: test working directory 'test/1/' is not empty
     a/
       info: test id: 1
     EOE
@@ -220,7 +220,7 @@ b += --no-column
       : Test cleanup of a wildcard out of the testscript working directory.
       :
       $c <'$* &../../a/***' && $b 2>>/EOE != 0
-      testscript:1: error: wildcard cleanup ../../a/*** is out of working directory test/
+      testscript:1: error: wildcard cleanup ../../a/*** is out of working directory 'test/'
         info: test id: 1
       EOE
 
@@ -346,7 +346,7 @@ EOI
 : Test an implicit cleanup being overwritten with the explicit one,
 :
 $c <'$* -o foo >=a &!a' && $b 2>>/EOE != 0
-testscript:1: error: registered for cleanup directory test/1/ is not empty
+testscript:1: error: test working directory 'test/1/' is not empty
 a
   info: test id: 1
 EOE
@@ -359,7 +359,7 @@ $c <<EOO && $b 2>>/EOE != 0
 $* &!a;
 $* -o foo >=a
 EOO
-testscript:2: error: registered for cleanup directory test/1/ is not empty
+testscript:2: error: test working directory 'test/1/' is not empty
 a
   info: test id: 1
 EOE
diff --git a/tests/test/script/runner/redirect.testscript b/tests/test/script/runner/redirect.testscript
index b8fe74d..0fe3aa3 100644
--- a/tests/test/script/runner/redirect.testscript
+++ b/tests/test/script/runner/redirect.testscript
@@ -80,10 +80,14 @@ psr = ($cxx.target.class != 'windows' ? '/' : '\\') # Path separator in regex.
   : literal
   :
   {
-    $c <'$* -i 0 <foo' && $b      : in
-    $c <'$* -o foo >foo' && $b    : out
-    $c <'$* -e foo 2>foo' && $b   : err
-    $c <'$* -i 1 <foo >foo' && $b : inout
+    $c <'$* -i 0 <<<=foo' && $b         : in
+    $c <'$* -i 0 <foo' && $b            : in-alias
+    $c <'$* -o foo >>>?foo' && $b       : out
+    $c <'$* -o foo >foo' && $b          : out-alias
+    $c <'$* -e foo 2>>>?foo' && $b      : err
+    $c <'$* -e foo 2>foo' && $b         : err-alias
+    $c <'$* -i 1 <<<=foo >>>?foo' && $b : inout
+    $c <'$* -i 1 <foo >foo' && $b       : inout-alias
 
     : inout-fail
     :
@@ -101,11 +105,16 @@ psr = ($cxx.target.class != 'windows' ? '/' : '\\') # Path separator in regex.
       info: test id: 1
     EOE
 
-    $c <'$* -i 2 <foo 2>foo' && $b              : inerr
-    $c <'$* -i 1 -e bar <foo 1>foo 2>bar' && $b : inout-err
-    $c <'$* -o "" >""' && $b                    : empty
-    $c <'$* -i 1 <:"foo" >:"foo"' && $b         : no-newline
-    $c <'$* -i 1 <:"" >:""' && $b               : no-newline-empty
+    $c <'$* -i 2 <<<=foo 2>>>?foo' && $b                 : inerr
+    $c <'$* -i 2 <foo 2>foo' && $b                       : inerr-alias
+    $c <'$* -i 1 -e bar <<<=foo 1>>>?foo 2>>>?bar' && $b : inout-err
+    $c <'$* -i 1 -e bar <foo 1>foo 2>bar' && $b          : inout-err-alias
+    $c <'$* -o "" >>>?""' && $b                          : empty
+    $c <'$* -o "" >""' && $b                             : empty-alias
+    $c <'$* -i 1 <<<=:"foo" >>>?:"foo"' && $b            : no-newline
+    $c <'$* -i 1 <:"foo" >:"foo"' && $b                  : no-newline-alias
+    $c <'$* -i 1 <<<=:"" >>>?:""' && $b                  : no-newline-empty
+    $c <'$* -i 1 <:"" >:""' && $b                        : no-newline-empty-alias
 
     : no-newline-fail1
     :
@@ -132,6 +141,15 @@ psr = ($cxx.target.class != 'windows' ? '/' : '\\') # Path separator in regex.
     : merge
     :
     $c <<EOI && $b
+    $* -o foo -e bar 2>>?EOE 1>&2
+    foo
+    bar
+    EOE
+    EOI
+
+    : merge-alias
+    :
+    $c <<EOI && $b
     $* -o foo -e bar 2>>EOE 1>&2
     foo
     bar
@@ -155,6 +173,10 @@ psr = ($cxx.target.class != 'windows' ? '/' : '\\') # Path separator in regex.
   {
     : match
     :
+    $c <'$* -o foo >>>?~/Foo?/i' && $b
+
+    : match-alias
+    :
     $c <'$* -o foo >~/Foo?/i' && $b
 
     : mismatch
@@ -209,6 +231,15 @@ psr = ($cxx.target.class != 'windows' ? '/' : '\\') # Path separator in regex.
     : in
     :
     $c <<EOI && $b
+    $* -i 0 <<=EOO
+    foo
+    bar
+    EOO
+    EOI
+
+    : in-alias
+    :
+    $c <<EOI && $b
     $* -i 0 <<EOO
     foo
     bar
@@ -218,6 +249,15 @@ psr = ($cxx.target.class != 'windows' ? '/' : '\\') # Path separator in regex.
     : out
     :
     $c <<EOI && $b
+    $* -o foo -o bar >>?EOO
+    foo
+    bar
+    EOO
+    EOI
+
+    : out-alias
+    :
+    $c <<EOI && $b
     $* -o foo -o bar >>EOO
     foo
     bar
@@ -227,6 +267,15 @@ psr = ($cxx.target.class != 'windows' ? '/' : '\\') # Path separator in regex.
     : err
     :
     $c <<EOI && $b
+    $* -e foo -e bar 2>>?EOO
+    foo
+    bar
+    EOO
+    EOI
+
+    : err-alias
+    :
+    $c <<EOI && $b
     $* -e foo -e bar 2>>EOO
     foo
     bar
@@ -236,6 +285,18 @@ psr = ($cxx.target.class != 'windows' ? '/' : '\\') # Path separator in regex.
     : inout
     :
     $c <<EOI && $b
+    $* -i 1 <<=EOF >>?EOO
+    foo
+    bar
+    EOF
+    foo
+    bar
+    EOO
+    EOI
+
+    : inout-alias
+    :
+    $c <<EOI && $b
     $* -i 1 <<EOF >>EOO
     foo
     bar
@@ -248,6 +309,19 @@ psr = ($cxx.target.class != 'windows' ? '/' : '\\') # Path separator in regex.
     : inerr
     :
     $c <<EOI && $b
+    $* -i 2 <<=EOF 2>>?EOE
+    foo
+    bar
+    EOF
+    foo
+    bar
+    EOE
+    EOI
+
+
+    : inerr-alias
+    :
+    $c <<EOI && $b
     $* -i 2 <<EOF 2>>EOE
     foo
     bar
@@ -260,6 +334,14 @@ psr = ($cxx.target.class != 'windows' ? '/' : '\\') # Path separator in regex.
     : empty
     :
     $c <<EOI && $b
+    $* -i 1 <<=EOF >>?EOO
+    EOF
+    EOO
+    EOI
+
+    : empty-alias
+    :
+    $c <<EOI && $b
     $* -i 1 <<EOF >>EOO
     EOF
     EOO
@@ -268,16 +350,43 @@ psr = ($cxx.target.class != 'windows' ? '/' : '\\') # Path separator in regex.
     : shared
     :
     $c <<EOI && $b
+    $* -i 1 <<=EOF >>?EOF
+    foo
+    bar
+    EOF
+    EOI
+
+    : shared-alias
+    :
+    $c <<EOI && $b
     $* -i 1 <<EOF >>EOF
     foo
     bar
     EOF
     EOI
 
+    : shared-in-alias
+    :
+    $c <<EOI && $b
+    $* -i 1 <<EOF >>?EOF
+    foo
+    bar
+    EOF
+    EOI
+
+    : shared-out-alias
+    :
+    $c <<EOI && $b
+    $* -i 1 <<=EOF >>EOF
+    foo
+    bar
+    EOF
+    EOI
+
     : extra-newline
     :
     $c <<EOI && $b
-    $* -i 1 <<EOF >>EOO
+    $* -i 1 <<=EOF >>?EOO
 
     EOF
 
@@ -287,7 +396,7 @@ psr = ($cxx.target.class != 'windows' ? '/' : '\\') # Path separator in regex.
     : no-newline
     :
     $c <<EOI && $b
-    $* -i 1 <<:EOF >>:EOO
+    $* -i 1 <<=:EOF >>?:EOO
     foo
     EOF
     foo
@@ -297,7 +406,7 @@ psr = ($cxx.target.class != 'windows' ? '/' : '\\') # Path separator in regex.
     : no-newline-fail1
     :
     $c <<EOI && $b 2>>~/EOE/ != 0
-    $* -i 1 <<:EOF >>EOO
+    $* -i 1 <<=:EOF >>?EOO
     foo
     EOF
     foo
@@ -314,7 +423,7 @@ psr = ($cxx.target.class != 'windows' ? '/' : '\\') # Path separator in regex.
     : no-newline-fail2
     :
     $c <<EOI && $b 2>>~/EOE/ != 0
-    $* -i 1 <<EOF >>:EOO
+    $* -i 1 <<=EOF >>?:EOO
     foo
     EOF
     foo
@@ -331,7 +440,7 @@ psr = ($cxx.target.class != 'windows' ? '/' : '\\') # Path separator in regex.
     : no-newline-empty
     :
     $c <<EOI && $b
-    $* -i 1 <<:EOF >>:EOO
+    $* -i 1 <<=:EOF >>?:EOO
     EOF
     EOO
     EOI
@@ -339,7 +448,7 @@ psr = ($cxx.target.class != 'windows' ? '/' : '\\') # Path separator in regex.
     : no-newline-extra-newline
     :
     $c <<EOI && $b
-    $* -i 1 <<:EOF >>:EOO
+    $* -i 1 <<=:EOF >>?:EOO
 
     EOF
 
@@ -349,7 +458,7 @@ psr = ($cxx.target.class != 'windows' ? '/' : '\\') # Path separator in regex.
     : merge
     :
     $c <<EOI && $b
-    $* -i 1 <<EOF -e baz >>EOO 2>&1
+    $* -i 1 <<=EOF -e baz >>?EOO 2>&1
     foo
     bar
     EOF
@@ -387,6 +496,14 @@ psr = ($cxx.target.class != 'windows' ? '/' : '\\') # Path separator in regex.
       : in
       :
       $c <<"EOI" && $b
+      \$* -i 1 <<=/EOF >>>?'foo$ps'
+      foo/
+      EOF
+      EOI
+
+      : in-alias
+      :
+      $c <<"EOI" && $b
       \$* -i 1 <</EOF >'foo$ps'
       foo/
       EOF
@@ -395,6 +512,14 @@ psr = ($cxx.target.class != 'windows' ? '/' : '\\') # Path separator in regex.
       : out
       :
       $c <<"EOI" && $b
+      \$* -i 1 <<<='foo$ps' >>?/EOO
+      foo/
+      EOO
+      EOI
+
+      : out-alias
+      :
+      $c <<"EOI" && $b
       \$* -i 1 <'foo$ps' >>/EOO
       foo/
       EOO
@@ -403,6 +528,14 @@ psr = ($cxx.target.class != 'windows' ? '/' : '\\') # Path separator in regex.
       : err
       :
       $c <<"EOI" && $b
+      \$* -i 2 <<<='foo$ps' 2>>?/EOE
+      foo/
+      EOE
+      EOI
+
+      : err-alias
+      :
+      $c <<"EOI" && $b
       \$* -i 2 <'foo$ps' 2>>/EOE
       foo/
       EOE
@@ -419,7 +552,7 @@ psr = ($cxx.target.class != 'windows' ? '/' : '\\') # Path separator in regex.
     : match
     :
     $c <<EOI && $b
-    $* -o foo -o foo -o bar >>~/EOO/i
+    $* -o foo -o foo -o bar >>?~/EOO/i
     /FO*/*
     bar
     /*
@@ -429,7 +562,7 @@ psr = ($cxx.target.class != 'windows' ? '/' : '\\') # Path separator in regex.
     : match-empty
     :
     $c <<EOI && $b
-    $* >>:~/EOO/
+    $* >>?:~/EOO/
     /.{0}
     EOO
     EOI
@@ -437,7 +570,7 @@ psr = ($cxx.target.class != 'windows' ? '/' : '\\') # Path separator in regex.
     : shared
     :
     $c <<EOI && $b
-    $* -o foo -e foo >>~/EOF/ 2>>~/EOF/
+    $* -o foo -e foo >>?~/EOF/ 2>>?~/EOF/
     foo
     EOF
     EOI
@@ -445,7 +578,7 @@ psr = ($cxx.target.class != 'windows' ? '/' : '\\') # Path separator in regex.
     : mismatch
     :
     $c <<EOI && $b 2>>/~%EOE%d != 0
-    $* -o foo >>~/EOO/
+    $* -o foo >>?~/EOO/
     bar
     EOO
     EOI
@@ -459,7 +592,7 @@ psr = ($cxx.target.class != 'windows' ? '/' : '\\') # Path separator in regex.
     : mismatch-icase
     :
     $c <<EOI && $b 2>>/~%EOE%d != 0
-    $* -o foo >>~/EOO/i
+    $* -o foo >>?~/EOO/i
     bar
     EOO
     EOI
@@ -479,6 +612,13 @@ psr = ($cxx.target.class != 'windows' ? '/' : '\\') # Path separator in regex.
   :
   $c <<EOI && $b
   $* -o foo >=out;
+  $* -i 1 <=out >foo
+  EOI
+
+  : in-alias
+  :
+  $c <<EOI && $b
+  $* -o foo >=out;
   $* -i 1 <<<out >foo
   EOI
 
@@ -490,6 +630,17 @@ psr = ($cxx.target.class != 'windows' ? '/' : '\\') # Path separator in regex.
     $c <<EOI && $b
     $* -o foo >=out;
     $* -e bar 2>+out;
+    $* -i 1 <<EOF >?out
+    foo
+    bar
+    EOF
+    EOI
+
+    : match-alias
+    :
+    $c <<EOI && $b
+    $* -o foo >=out;
+    $* -e bar 2>+out;
     $* -i 1 <<EOF >>>out
     foo
     bar
@@ -500,7 +651,7 @@ psr = ($cxx.target.class != 'windows' ? '/' : '\\') # Path separator in regex.
     :
     $c <<EOI && $b 2>>/~%EOE%d != 0
     $* -o foo >=out;
-    $* -o bar >>>out
+    $* -o bar >?out
     EOI
     %testscript:2: error: ../../../../../driver(.exe)? stdout doesn't match expected%
       info: stdout: test/1/stdout-2