* generic/tclCmdMZ.c (Tcl_RegexpObjCmd): [Bug 2826551, Patch 2948425]:

	Backport of updates to make handling of RE line anchors correct.

3 files changed, 298 insertions, 57 deletions

diff --git a/ChangeLog b/ChangeLog
index fbf4551..0508bf9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,15 +1,20 @@
+2010-08-12  Donal K. Fellows  <dkf@users.sf.net>
+
+	* generic/tclCmdMZ.c (Tcl_RegexpObjCmd): [Bug 2826551, Patch 2948425]:
+	Backport of updates to make handling of RE line anchors correct.
+
 2010-08-11  Jeff Hobbs  <jeffh@ActiveState.com>
 
-	* unix/ldAix: remove ancient (pre-4.2) AIX support
+	* unix/ldAix: Remove ancient (pre-4.2) AIX support
 	* unix/configure: regen with ac-2.59
 	* unix/configure.in, unix/tclConfig.sh.in, unix/Makefile.in:
-	* unix/tcl.m4 (AIX): remove the need for ldAIX, replace with
-	-bexpall/-brtl.  Remove TCL_EXP_FILE (export file) and other
-	baggage that went with it.  Remove pre-4 AIX build support.
+	* unix/tcl.m4 (AIX): Remove the need for ldAIX, replace with
+	-bexpall/-brtl.  Remove TCL_EXP_FILE (export file) and other baggage
+	that went with it.  Remove pre-4 AIX build support.
 
 2010-08-10  Jeff Hobbs  <jeffh@ActiveState.com>
 
-	* generic/tclUtil.c (TclByteArrayMatch): patterns may not be
+	* generic/tclUtil.c (TclByteArrayMatch): Patterns may not be
 	null-terminated, so account for that.
 
 2010-08-05  Don Porter  <dgp@users.sourceforge.net>
@@ -20,10 +25,10 @@
 
 2010-08-04  Jeff Hobbs  <jeffh@ActiveState.com>
 
-	* unix/tclUnixFCmd.c: adjust license header as per
+	* unix/tclUnixFCmd.c: Adjust license header as per
 	ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change
 
-	* license.terms: fix DFARs note for number-adjusted rights clause
+	* license.terms: Fix DFARs note for number-adjusted rights clause
 
 	* win/tclWin32Dll.c (asciiProcs, unicodeProcs):
 	* win/tclWinLoad.c (TclpDlopen): 'load' use LoadLibraryEx with
@@ -54,14 +59,14 @@
 
 2010-08-03  Andreas Kupries  <andreask@activestate.com>
 
-	* tests/var.test (var-19.1): [Bug 3037525]: Added test
-	demonstrating the local hashtable deletion crash and fix.
+	* tests/var.test (var-19.1): [Bug 3037525]: Added test demonstrating
+	the local hashtable deletion crash and fix.
 
-	* tests/info.test (info-39.1, test_info_frame): Changed absolute
-	to relative frame adressing to handle difference between testing
-	with -singleproc 1 vs. the default -singleproc 0. Plus comment
-	fix. The test and issue are not relevant to the trunk, forward
-	porting is not required.
+	* tests/info.test (info-39.1, test_info_frame): Changed absolute to
+	relative frame adressing to handle difference between testing with
+	-singleproc 1 vs. the default -singleproc 0. Plus comment fix. The
+	test and issue are not relevant to the trunk, forward porting is not
+	required.
 
 2010-08-03  Don Porter  <dgp@users.sourceforge.net>
 
@@ -80,19 +85,19 @@
 
 2010-07-28  Miguel Sofer  <msofer@users.sf.net>
 
-	* generic/tclVar.c: fix for crash [Bug 3037525]: lose fickle
-	optimisation in TclDeleteVars (used for runtime-created locals)
+	* generic/tclVar.c: [Bug 3037525]: lose fickle optimisation in
+	TclDeleteVars (used for runtime-created locals) that caused crashes.
 
 2010-07-25  Jan Nijtmans  <nijtmans@users.sf.net>
 
-	* generic/tclInt.h:	[Bug 3030870] make itcl 3.x built with pre-8.6
-	* generic/tclBasic.c:	work in 8.6 revert tclInt.h to what it was
+	* generic/tclInt.h: [Bug 3030870]: Make itcl 3.x built with pre-8.6
+	* generic/tclBasic.c: work in 8.6 revert tclInt.h to what it was
 	before, and relax the relation between Tcl_CallFrame and CallFrame.
 
 2010-07-17  Jan Nijtmans  <nijtmans@users.sf.net>
 
-	* generic/tcl.h:	[Bug 3030870] make itcl 3.x built with
-	* generic/tclInt.h:	pre-8.6 work in 8.6
+	* generic/tcl.h: [Bug 3030870]: Make itcl 3.x built with pre-8.6
+	* generic/tclInt.h:		work in 8.6
 
 2010-07-02  Donal K. Fellows  <dkf@users.sf.net>
 
diff --git a/generic/tclCmdMZ.c b/generic/tclCmdMZ.c
index 2011b4b..0c4615a 100644
--- a/generic/tclCmdMZ.c
+++ b/generic/tclCmdMZ.c
@@ -15,7 +15,7 @@
  * See the file "license.terms" for information on usage and redistribution of
  * this file, and for a DISCLAIMER OF ALL WARRANTIES.
  *
- * RCS: @(#) $Id: tclCmdMZ.c,v 1.163.2.8 2010/04/06 08:26:02 vasiljevic Exp $
+ * RCS: @(#) $Id: tclCmdMZ.c,v 1.163.2.9 2010/08/12 08:55:38 dkf Exp $
  */
 
 #include "tclInt.h"
@@ -89,7 +89,7 @@ Tcl_RegexpObjCmd(
     Tcl_Obj *CONST objv[])	/* Argument objects. */
 {
     int i, indices, match, about, offset, all, doinline, numMatchesSaved;
-    int cflags, eflags, stringLength;
+    int cflags, eflags, stringLength, matchLength;
     Tcl_RegExp regExpr;
     Tcl_Obj *objPtr, *startIndex = NULL, *resultPtr = NULL;
     Tcl_RegExpInfo info;
@@ -231,15 +231,6 @@ Tcl_RegexpObjCmd(
 	return TCL_ERROR;
     }
 
-    if (offset > 0) {
-	/*
-	 * Add flag if using offset (string is part of a larger string), so
-	 * that "^" won't match.
-	 */
-
-	eflags |= TCL_REG_NOTBOL;
-    }
-
     objc -= 2;
     objv += 2;
 
@@ -267,12 +258,23 @@ Tcl_RegexpObjCmd(
      */
 
     while (1) {
-	match = Tcl_RegExpExecObj(interp, regExpr, objPtr,
-		offset /* offset */, numMatchesSaved, eflags
-		| ((offset > 0 &&
-		(Tcl_GetUniChar(objPtr,offset-1) != (Tcl_UniChar)'\n'))
-		? TCL_REG_NOTBOL : 0));
+	/*
+	 * Pass either 0 or TCL_REG_NOTBOL in the eflags. Passing
+	 * TCL_REG_NOTBOL indicates that the character at offset should not be
+	 * considered the start of the line. If for example the pattern {^} is
+	 * passed and -start is positive, then the pattern will not match the
+	 * start of the string unless the previous character is a newline.
+	 */
 
+	if ((offset == 0) || ((offset > 0) &&
+		(Tcl_GetUniChar(objPtr, offset-1) == (Tcl_UniChar)'\n'))) {
+	    eflags = 0;
+	} else {
+	    eflags = TCL_REG_NOTBOL;
+	}
+
+	match = Tcl_RegExpExecObj(interp, regExpr, objPtr, offset,
+		numMatchesSaved, eflags);
 	if (match < 0) {
 	    return TCL_ERROR;
 	}
@@ -389,12 +391,18 @@ Tcl_RegexpObjCmd(
 	 * offset never changes).
 	 */
 
-	if (info.matches[0].end == 0) {
+	matchLength = info.matches[0].end - info.matches[0].start;
+	offset += info.matches[0].end;
+
+	/*
+	 * A match of length zero could happen for {^} {$} or {.*} and in
+	 * these cases we always want to bump the index up one.
+	 */
+
+	if (matchLength == 0) {
 	    offset++;
 	}
-	offset += info.matches[0].end;
 	all++;
-	eflags |= TCL_REG_NOTBOL;
 	if (offset >= stringLength) {
 	    break;
 	}
diff --git a/tests/regexp.test b/tests/regexp.test
index 295d83c..37f4442 100644
--- a/tests/regexp.test
+++ b/tests/regexp.test
@@ -11,13 +11,15 @@
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 #
-# RCS: @(#) $Id: regexp.test,v 1.30.2.1 2008/08/21 23:19:06 hobbs Exp $
+# RCS: @(#) $Id: regexp.test,v 1.30.2.2 2010/08/12 08:55:39 dkf Exp $
 
 if {[lsearch [namespace children] ::tcltest] == -1} {
     package require tcltest 2
     namespace import -force ::tcltest::*
 }
 
+testConstraint exec [llength [info commands exec]]
+
 catch {unset foo}
 test regexp-1.1 {basic regexp operation} {
     regexp ab*c abbbc
@@ -457,8 +459,6 @@ test regexp-14.2 {CompileRegexp: regexp cache, different flags} {
     append x *a
     regexp -nocase $x bbba
 } 1
-
-testConstraint exec [llength [info commands exec]]
 test regexp-14.3 {CompileRegexp: regexp cache, empty regexp and empty cache} -constraints {
 	exec
 } -setup {
@@ -622,7 +622,7 @@ test regexp-20.1 {regsub shared object shimmering} {
     set c abcdefghijklmnopqurstuvwxyz0123456789 
     regsub $a $c $b d 
     list $d [string length $d] [string bytelength $d]
-} [list abcdefghijklmnopqurstuvwxyz0123456789 37 37]
+} {abcdefghijklmnopqurstuvwxyz0123456789 37 37}
 test regexp-20.2 {regsub shared object shimmering with -about} {
     eval regexp -about abc
 } {0 {}}
@@ -630,64 +630,292 @@ test regexp-20.2 {regsub shared object shimmering with -about} {
 test regexp-21.1 {regsub works with empty string} {
     regsub -- ^ {} foo
 } {foo}
-
 test regexp-21.2 {regsub works with empty string} {
     regsub -- \$ {} foo
 } {foo}
-
 test regexp-21.3 {regsub works with empty string offset} {
     regsub -start 0 -- ^ {} foo
 } {foo}
-
 test regexp-21.4 {regsub works with empty string offset} {
     regsub -start 0 -- \$ {} foo
 } {foo}
-
 test regexp-21.5 {regsub works with empty string offset} {
     regsub -start 3 -- \$ {123} foo
 } {123foo}
-
 test regexp-21.6 {regexp works with empty string} {
     regexp -- ^ {}
 } {1}
-
 test regexp-21.7 {regexp works with empty string} {
     regexp -start 0 -- ^ {}
 } {1}
-
 test regexp-21.8 {regexp works with empty string offset} {
     regexp -start 3 -- ^ {123}
 } {0}
-
 test regexp-21.9 {regexp works with empty string offset} {
     regexp -start 3 -- \$ {123}
 } {1}
-
 test regexp-21.10 {multiple matches handle newlines} {
     regsub -all -lineanchor -- {^#[^\n]*\n} "#one\n#two\n#three\n" foo\n
 } "foo\nfoo\nfoo\n"
-
 test regexp-21.11 {multiple matches handle newlines} {
     regsub -all -line -- ^ "a\nb\nc" \#
 } "\#a\n\#b\n\#c"
-
 test regexp-21.12 {multiple matches handle newlines} {
     regsub -all -line -- ^ "\n\n" \#
 } "\#\n\#\n\#"
-
 test regexp-21.13 {multiple matches handle newlines} {
     regexp -all -inline -indices -line -- ^ "a\nb\nc"
 } {{0 -1} {2 1} {4 3}}
 
-
 test regexp-22.1 {Bug 1810038} {
     regexp ($|^X)* {}
 } 1
-
 test regexp-22.2 {regexp compile and backrefs, Bug 1857126} {
     regexp -- {([bc])\1} bb
 } 1
 
+test regexp-23.1 {regexp -all and -line} {
+    set string ""
+    list \
+	[regexp -all -inline -indices -line -- {^} $string] \
+	[regexp -all -inline -indices -line -- {^$} $string] \
+	[regexp -all -inline -indices -line -- {$} $string]
+} {{{0 -1}} {{0 -1}} {{0 -1}}}
+test regexp-23.2 {regexp -all and -line} {
+    set string "\n"
+    list \
+	[regexp -all -inline -indices -line -- {^} $string] \
+	[regexp -all -inline -indices -line -- {^$} $string] \
+	[regexp -all -inline -indices -line -- {$} $string]
+} {{{0 -1}} {{0 -1}} {{0 -1}}}
+test regexp-23.3 {regexp -all and -line} {
+    set string "\n\n"
+    list \
+	[regexp -all -inline -indices -line -- {^} $string] \
+	[regexp -all -inline -indices -line -- {^$} $string] \
+	[regexp -all -inline -indices -line -- {$} $string]
+} {{{0 -1} {1 0}} {{0 -1} {1 0}} {{0 -1} {1 0}}}
+test regexp-23.4 {regexp -all and -line} {
+    set string "a"
+    list \
+	[regexp -all -inline -indices -line -- {^} $string] \
+	[regexp -all -inline -indices -line -- {^.*$} $string] \
+	[regexp -all -inline -indices -line -- {$} $string]
+} {{{0 -1}} {{0 0}} {{1 0}}}
+test regexp-23.5 {regexp -all and -line} {knownBug} {
+    set string "a\n"
+    list \
+	[regexp -all -inline -indices -line -- {^} $string] \
+	[regexp -all -inline -indices -line -- {^.*$} $string] \
+	[regexp -all -inline -indices -line -- {$} $string]
+} {{{0 -1} {2 1}} {{0 0} {2 1}} {{1 0} {2 1}}}
+test regexp-23.6 {regexp -all and -line} {
+    set string "\na"
+    list \
+	[regexp -all -inline -indices -line -- {^} $string] \
+	[regexp -all -inline -indices -line -- {^.*$} $string] \
+	[regexp -all -inline -indices -line -- {$} $string]
+} {{{0 -1} {1 0}} {{0 -1} {1 1}} {{0 -1} {2 1}}}
+test regexp-23.7 {regexp -all and -line} {knownBug} {
+    set string "ab\n"
+    list \
+	[regexp -all -inline -indices -line -- {^} $string] \
+	[regexp -all -inline -indices -line -- {^.*$} $string] \
+	[regexp -all -inline -indices -line -- {$} $string]
+} {{{0 -1} {3 2}} {{0 1} {3 2}} {{2 1} {3 2}}}
+test regexp-23.8 {regexp -all and -line} {
+    set string "a\nb"
+    list \
+	[regexp -all -inline -indices -line -- {^} $string] \
+	[regexp -all -inline -indices -line -- {^.*$} $string] \
+	[regexp -all -inline -indices -line -- {$} $string]
+} {{{0 -1} {2 1}} {{0 0} {2 2}} {{1 0} {3 2}}}
+test regexp-23.9 {regexp -all and -line} {knownBug} {
+    set string "a\nb\n"
+    list \
+	[regexp -all -inline -indices -line -- {^} $string] \
+	[regexp -all -inline -indices -line -- {^.*$} $string] \
+	[regexp -all -inline -indices -line -- {$} $string]
+} {{{0 -1} {2 1} {4 3}} {{0 0} {2 2} {4 3}} {{1 0} {3 2} {4 3}}}
+test regexp-23.10 {regexp -all and -line} {
+    set string "a\nb\nc"
+    list \
+	[regexp -all -inline -indices -line -- {^} $string] \
+	[regexp -all -inline -indices -line -- {^.*$} $string] \
+	[regexp -all -inline -indices -line -- {$} $string]
+} {{{0 -1} {2 1} {4 3}} {{0 0} {2 2} {4 4}} {{1 0} {3 2} {5 4}}}
+test regexp-23.11 {regexp -all and -line} {
+    regexp -all -inline -indices -line -- {b} "abb\nb"
+} {{1 1} {2 2} {4 4}}
+
+test regexp-24.1 {regsub -all and -line} {
+    foreach {v1 v2 v3} {{} {} {}} {}
+    set string ""
+    list \
+	[regsub -line -all {^} $string {<&>} v1] $v1 \
+	[regsub -line -all {^$} $string {<&>} v2] $v2 \
+	[regsub -line -all {$} $string {<&>} v3] $v3
+} {1 <> 1 <> 1 <>}
+test regexp-24.2 {regsub -all and -line} {
+    foreach {v1 v2 v3} {{} {} {}} {}
+    set string "\n"
+    list \
+	[regsub -line -all {^} $string {<&>} v1] $v1 \
+	[regsub -line -all {^$} $string {<&>} v2] $v2 \
+	[regsub -line -all {$} $string {<&>} v3] $v3
+} "2 {<>\n<>} 2 {<>\n<>} 2 {<>\n<>}"
+test regexp-24.3 {regsub -all and -line} {
+    foreach {v1 v2 v3} {{} {} {}} {}
+    set string "\n\n"
+    list \
+	[regsub -line -all {^} $string {<&>} v1] $v1 \
+	[regsub -line -all {^$} $string {<&>} v2] $v2 \
+	[regsub -line -all {$} $string {<&>} v3] $v3
+} "3 {<>\n<>\n<>} 3 {<>\n<>\n<>} 3 {<>\n<>\n<>}"
+test regexp-24.4 {regsub -all and -line} {
+    foreach {v1 v2 v3} {{} {} {}} {}
+    set string "a"
+    list \
+	[regsub -line -all {^} $string {<&>} v1] $v1 \
+	[regsub -line -all {^.*$} $string {<&>} v2] $v2 \
+	[regsub -line -all {$} $string {<&>} v3] $v3
+} {1 <>a 1 <a> 1 a<>}
+test regexp-24.5 {regsub -all and -line} {
+    foreach {v1 v2 v3} {{} {} {}} {}
+    set string "a\n"
+    list \
+	[regsub -line -all {^} $string {<&>} v1] $v1 \
+	[regsub -line -all {^.*$} $string {<&>} v2] $v2 \
+	[regsub -line -all {$} $string {<&>} v3] $v3
+} "2 {<>a\n<>} 2 {<a>\n<>} 2 {a<>\n<>}"
+test regexp-24.6 {regsub -all and -line} {
+    foreach {v1 v2 v3} {{} {} {}} {}
+    set string "\na"
+    list \
+	[regsub -line -all {^} $string {<&>} v1] $v1 \
+	[regsub -line -all {^.*$} $string {<&>} v2] $v2 \
+	[regsub -line -all {$} $string {<&>} v3] $v3
+} "2 {<>\n<>a} 2 {<>\n<a>} 2 {<>\na<>}"
+test regexp-24.7 {regsub -all and -line} {
+    foreach {v1 v2 v3} {{} {} {}} {}
+    set string "ab\n"
+    list \
+	[regsub -line -all {^} $string {<&>} v1] $v1 \
+	[regsub -line -all {^.*$} $string {<&>} v2] $v2 \
+	[regsub -line -all {$} $string {<&>} v3] $v3
+} "2 {<>ab\n<>} 2 {<ab>\n<>} 2 {ab<>\n<>}"
+test regexp-24.8 {regsub -all and -line} {
+    foreach {v1 v2 v3} {{} {} {}} {}
+    set string "a\nb"
+    list \
+	[regsub -line -all {^} $string {<&>} v1] $v1 \
+	[regsub -line -all {^.*$} $string {<&>} v2] $v2 \
+	[regsub -line -all {$} $string {<&>} v3] $v3
+} "2 {<>a\n<>b} 2 {<a>\n<b>} 2 {a<>\nb<>}"
+test regexp-24.9 {regsub -all and -line} {
+    foreach {v1 v2 v3} {{} {} {}} {}
+    set string "a\nb\n"
+    list \
+	[regsub -line -all {^} $string {<&>} v1] $v1 \
+	[regsub -line -all {^.*$} $string {<&>} v2] $v2 \
+	[regsub -line -all {$} $string {<&>} v3] $v3
+} "3 {<>a\n<>b\n<>} 3 {<a>\n<b>\n<>} 3 {a<>\nb<>\n<>}"
+test regexp-24.10 {regsub -all and -line} {
+    foreach {v1 v2 v3} {{} {} {}} {}
+    set string "a\nb\nc"
+    list \
+	[regsub -line -all {^} $string {<&>} v1] $v1 \
+	[regsub -line -all {^.*$} $string {<&>} v2] $v2 \
+	[regsub -line -all {$} $string {<&>} v3] $v3
+} "3 {<>a\n<>b\n<>c} 3 {<a>\n<b>\n<c>} 3 {a<>\nb<>\nc<>}"
+test regexp-24.11 {regsub -all and -line} {
+    regsub -line -all {b} "abb\nb" {<&>}
+} "a<b><b>\n<b>"
+
+test regexp-25.1 {regexp without -line option} {
+    set foo ""
+    list [regexp {a.*b} "dabc\naxyb\n" foo] $foo
+} "1 {abc\naxyb}"
+test regexp-25.2 {regexp without -line option} {
+    set foo ""
+    list [regexp {^a.*b$} "dabc\naxyb\n" foo] $foo
+} {0 {}}
+test regexp-25.3 {regexp with -line option} {
+    set foo ""
+    list [regexp -line {^a.*b$} "dabc\naxyb\n" foo] $foo
+} {1 axyb}
+test regexp-25.4 {regexp with -line option} {
+    set foo ""
+    list [regexp -line {^a.*b$} "dabc\naxyb\nxb" foo] $foo
+} {1 axyb}
+test regexp-25.5 {regexp without -line option} {
+    set foo ""
+    list [regexp {^a.*b$} "dabc\naxyb\nxb" foo] $foo
+} {0 {}}
+test regexp-25.6 {regexp without -line option} {
+    set foo ""
+    list [regexp {a.*b$} "dabc\naxyb\nxb" foo] $foo
+} "1 {abc\naxyb\nxb}"
+test regexp-25.7 {regexp with -lineanchor option} {
+    set foo ""
+    list [regexp -lineanchor {^a.*b$} "dabc\naxyb\nxb" foo] $foo
+} "1 {axyb\nxb}"
+test regexp-25.8 {regexp with -lineanchor and -linestop option} {
+    set foo ""
+    list [regexp -lineanchor -linestop {^a.*b$} "dabc\naxyb\nxb" foo] $foo
+} {1 axyb}
+test regexp-25.9 {regexp with -linestop option} {
+    set foo ""
+    list [regexp -linestop {a.*b} "ab\naxyb\nxb" foo] $foo
+} {1 ab}
+
+test regexp-26.1 {matches start of line 1 time} {
+    regexp -all -inline -- {^a+} "aab\naaa"
+} {aa}
+test regexp-26.2 {matches start of line(s) 2 times} {
+    regexp -all -inline -line -- {^a+} "aab\naaa"
+} {aa aaa}
+test regexp-26.3 {effect of -line -all and -start} {
+    list \
+	[regexp -all -inline -line -start 0 -- {^a+} "aab\naaa"] \
+	[regexp -all -inline -line -start 1 -- {^a+} "aab\naaa"] \
+	[regexp -all -inline -line -start 3 -- {^a+} "aab\naaa"] \
+	[regexp -all -inline -line -start 4 -- {^a+} "aab\naaa"] \
+} {{aa aaa} aaa aaa aaa}
+test regexp-26.5 {match length 0, match length 1} {
+    regexp -all -inline -line -- {^b*} "a\nb"
+} {{} b}
+test regexp-26.6 {non reporting capture group} {
+    regexp -all -inline -line -- {^(?:a+|b)} "aab\naaa"
+} {aa aaa}
+test regexp-26.7 {Tcl bug 2826551: -line sensitive regexp and -start} {
+    set match1 {}
+    set match2 {}
+    list \
+	[regexp -start 0 -indices -line {^a} "\nab" match1] $match1 \
+	[regexp -start 1 -indices -line {^a} "\nab" match2] $match2
+} {1 {1 1} 1 {1 1}}
+test regexp-26.8 {Tcl bug 2826551: diff regexp with -line option} {
+    set data "@1\n2\n+3\n@4\n-5\n+6\n7\n@8\n9\n"
+    regexp -all -inline -line {^@.*\n(?:[^@].*\n?)*} $data
+} "{@1\n2\n+3\n} {@4\n-5\n+6\n7\n} {@8\n9\n}"
+test regexp-26.9 {Tcl bug 2826551: diff regexp with embedded -line option} {
+    set data "@1\n2\n+3\n@4\n-5\n+6\n7\n@8\n9\n"
+    regexp -all -inline {(?n)^@.*\n(?:[^@].*\n?)*} $data
+} "{@1\n2\n+3\n} {@4\n-5\n+6\n7\n} {@8\n9\n}"
+test regexp-26.10 {regexp with -line option} {
+    regexp -all -inline -line -- {a*} "a\n"
+} {a {}}
+test regexp-26.11 {regexp without -line option} {
+    regexp -all -inline -- {a*} "a\n"
+} {a {}}
+test regexp-26.12 {regexp with -line option} {
+    regexp -all -inline -line -- {a*} "b\n"
+} {{} {}}
+test regexp-26.13 {regexp without -line option} {
+    regexp -all -inline -- {a*} "b\n"
+} {{} {}}
+
 # cleanup
 ::tcltest::cleanupTests
 return