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+# Commands covered:  regexp, regsub
+#
+# This file contains a collection of tests for one or more of the Tcl
+# built-in commands.  Sourcing this file into Tcl runs the tests and
+# generates output for errors.  No output means no errors were found.
+#
+# Copyright (c) 1991-1993 The Regents of the University of California.
+# Copyright (c) 1994 Sun Microsystems, Inc.
+#
+# See the file "license.terms" for information on usage and redistribution
+# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+#
+# SCCS: @(#) regexp.test 1.21 96/12/23 13:59:48
+
+if {[string compare test [info procs test]] == 1} then {source defs}
+
+catch {unset foo}
+test regexp-1.1 {basic regexp operation} {
+    regexp ab*c abbbc
+} 1
+test regexp-1.2 {basic regexp operation} {
+    regexp ab*c ac
+} 1
+test regexp-1.3 {basic regexp operation} {
+    regexp ab*c ab
+} 0
+test regexp-1.4 {basic regexp operation} {
+    regexp -- -gorp abc-gorpxxx
+} 1
+test regexp-1.5 {basic regexp operation} {
+    regexp {^([^ ]*)[ ]*([^ ]*)} "" a
+} 1
+
+test regexp-2.1 {getting substrings back from regexp} {
+    set foo {}
+    list [regexp ab*c abbbbc foo] $foo
+} {1 abbbbc}
+test regexp-2.2 {getting substrings back from regexp} {
+    set foo {}
+    set f2 {}
+    list [regexp a(b*)c abbbbc foo f2] $foo $f2
+} {1 abbbbc bbbb}
+test regexp-2.3 {getting substrings back from regexp} {
+    set foo {}
+    set f2 {}
+    list [regexp a(b*)(c) abbbbc foo f2] $foo $f2
+} {1 abbbbc bbbb}
+test regexp-2.4 {getting substrings back from regexp} {
+    set foo {}
+    set f2 {}
+    set f3 {}
+    list [regexp a(b*)(c) abbbbc foo f2 f3] $foo $f2 $f3
+} {1 abbbbc bbbb c}
+test regexp-2.5 {getting substrings back from regexp} {
+    set foo {}; set f1 {}; set f2 {}; set f3 {}; set f4 {}; set f5 {};
+    set f6 {}; set f7 {}; set f8 {}; set f9 {}; set fa {}; set fb {};
+    list [regexp (1*)(2*)(3*)(4*)(5*)(6*)(7*)(8*)(9*)(a*)(b*) \
+	      12223345556789999aabbb \
+	    foo f1 f2 f3 f4 f5 f6 f7 f8 f9 fa fb] $foo $f1 $f2 $f3 $f4 $f5 \
+	    $f6 $f7 $f8 $f9 $fa $fb
+} {1 12223345556789999aabbb 1 222 33 4 555 6 7 8 9999 aa bbb}
+test regexp-2.6 {getting substrings back from regexp} {
+    set foo 2; set f2 2; set f3 2; set f4 2
+    list [regexp (a)(b)? xay foo f2 f3 f4] $foo $f2 $f3 $f4
+} {1 a a {} {}}
+test regexp-2.7 {getting substrings back from regexp} {
+    set foo 1; set f2 1; set f3 1; set f4 1
+    list [regexp (a)(b)?(c) xacy foo f2 f3 f4] $foo $f2 $f3 $f4
+} {1 ac a {} c}
+
+
+test regexp-3.1 {-indices option to regexp} {
+    set foo {}
+    list [regexp -indices ab*c abbbbc foo] $foo
+} {1 {0 5}}
+test regexp-3.2 {-indices option to regexp} {
+    set foo {}
+    set f2 {}
+    list [regexp -indices a(b*)c abbbbc foo f2] $foo $f2
+} {1 {0 5} {1 4}}
+test regexp-3.3 {-indices option to regexp} {
+    set foo {}
+    set f2 {}
+    list [regexp -indices a(b*)(c) abbbbc foo f2] $foo $f2
+} {1 {0 5} {1 4}}
+test regexp-3.4 {-indices option to regexp} {
+    set foo {}
+    set f2 {}
+    set f3 {}
+    list [regexp -indices a(b*)(c) abbbbc foo f2 f3] $foo $f2 $f3
+} {1 {0 5} {1 4} {5 5}}
+test regexp-3.5 {-indices option to regexp} {
+    set foo {}; set f1 {}; set f2 {}; set f3 {}; set f4 {}; set f5 {};
+    set f6 {}; set f7 {}; set f8 {}; set f9 {}
+    list [regexp -indices (1*)(2*)(3*)(4*)(5*)(6*)(7*)(8*)(9*) \
+	    12223345556789999 \
+	    foo f1 f2 f3 f4 f5 f6 f7 f8 f9] $foo $f1 $f2 $f3 $f4 $f5 \
+	    $f6 $f7 $f8 $f9
+} {1 {0 16} {0 0} {1 3} {4 5} {6 6} {7 9} {10 10} {11 11} {12 12} {13 16}}
+test regexp-3.6 {getting substrings back from regexp} {
+    set foo 2; set f2 2; set f3 2; set f4 2
+    list [regexp -indices (a)(b)? xay foo f2 f3 f4] $foo $f2 $f3 $f4
+} {1 {1 1} {1 1} {-1 -1} {-1 -1}}
+test regexp-3.7 {getting substrings back from regexp} {
+    set foo 1; set f2 1; set f3 1; set f4 1
+    list [regexp -indices (a)(b)?(c) xacy foo f2 f3 f4] $foo $f2 $f3 $f4
+} {1 {1 2} {1 1} {-1 -1} {2 2}}
+
+test regexp-4.1 {-nocase option to regexp} {
+    regexp -nocase foo abcFOo
+} 1
+test regexp-4.2 {-nocase option to regexp} {
+    set f1 22
+    set f2 33
+    set f3 44
+    list [regexp -nocase {a(b*)([xy]*)z} aBbbxYXxxZ22 f1 f2 f3] $f1 $f2 $f3
+} {1 aBbbxYXxxZ Bbb xYXxx}
+test regexp-4.3 {-nocase option to regexp} {
+    regexp -nocase FOo abcFOo
+} 1
+set x abcdefghijklmnopqrstuvwxyz1234567890
+set x $x$x$x$x$x$x$x$x$x$x$x$x
+test regexp-4.4 {case conversion in regsub} {
+    list [regexp -nocase $x $x foo] $foo
+} "1 $x"
+unset x
+
+test regexp-5.1 {exercise cache of compiled expressions} {
+    regexp .*a b
+    regexp .*b c
+    regexp .*c d
+    regexp .*d e
+    regexp .*e f
+    regexp .*a bbba
+} 1
+test regexp-5.2 {exercise cache of compiled expressions} {
+    regexp .*a b
+    regexp .*b c
+    regexp .*c d
+    regexp .*d e
+    regexp .*e f
+    regexp .*b xxxb
+} 1
+test regexp-5.3 {exercise cache of compiled expressions} {
+    regexp .*a b
+    regexp .*b c
+    regexp .*c d
+    regexp .*d e
+    regexp .*e f
+    regexp .*c yyyc
+} 1
+test regexp-5.4 {exercise cache of compiled expressions} {
+    regexp .*a b
+    regexp .*b c
+    regexp .*c d
+    regexp .*d e
+    regexp .*e f
+    regexp .*d 1d
+} 1
+test regexp-5.5 {exercise cache of compiled expressions} {
+    regexp .*a b
+    regexp .*b c
+    regexp .*c d
+    regexp .*d e
+    regexp .*e f
+    regexp .*e xe
+} 1
+
+test regexp-6.1 {regexp errors} {
+    list [catch {regexp a} msg] $msg
+} {1 {wrong # args: should be "regexp ?switches? exp string ?matchVar? ?subMatchVar subMatchVar ...?"}}
+test regexp-6.2 {regexp errors} {
+    list [catch {regexp -nocase a} msg] $msg
+} {1 {wrong # args: should be "regexp ?switches? exp string ?matchVar? ?subMatchVar subMatchVar ...?"}}
+test regexp-6.3 {regexp errors} {
+    list [catch {regexp -gorp a} msg] $msg
+} {1 {bad switch "-gorp": must be -indices, -nocase, or --}}
+test regexp-6.4 {regexp errors} {
+    list [catch {regexp a( b} msg] $msg
+} {1 {couldn't compile regular expression pattern: unmatched ()}}
+test regexp-6.5 {regexp errors} {
+    list [catch {regexp a( b} msg] $msg
+} {1 {couldn't compile regular expression pattern: unmatched ()}}
+test regexp-6.6 {regexp errors} {
+    list [catch {regexp a a f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1} msg] $msg
+} {0 1}
+test regexp-6.7 {regexp errors} {
+    list [catch {regexp (x)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.) xyzzy} msg] $msg
+} {1 {couldn't compile regular expression pattern: too many ()}}
+test regexp-6.8 {regexp errors} {
+    set f1 44
+    list [catch {regexp abc abc f1(f2)} msg] $msg
+} {1 {couldn't set variable "f1(f2)"}}
+
+test regexp-7.1 {basic regsub operation} {
+    list [regsub aa+ xaxaaaxaa 111&222 foo] $foo
+} {1 xax111aaa222xaa}
+test regexp-7.2 {basic regsub operation} {
+    list [regsub aa+ aaaxaa &111 foo] $foo
+} {1 aaa111xaa}
+test regexp-7.3 {basic regsub operation} {
+    list [regsub aa+ xaxaaa 111& foo] $foo
+} {1 xax111aaa}
+test regexp-7.4 {basic regsub operation} {
+    list [regsub aa+ aaa 11&2&333 foo] $foo
+} {1 11aaa2aaa333}
+test regexp-7.5 {basic regsub operation} {
+    list [regsub aa+ xaxaaaxaa &2&333 foo] $foo
+} {1 xaxaaa2aaa333xaa}
+test regexp-7.6 {basic regsub operation} {
+    list [regsub aa+ xaxaaaxaa 1&22& foo] $foo
+} {1 xax1aaa22aaaxaa}
+test regexp-7.7 {basic regsub operation} {
+    list [regsub a(a+) xaxaaaxaa {1\122\1} foo] $foo
+} {1 xax1aa22aaxaa}
+test regexp-7.8 {basic regsub operation} {
+    list [regsub a(a+) xaxaaaxaa {1\\\122\1} foo] $foo
+} "1 {xax1\\aa22aaxaa}"
+test regexp-7.9 {basic regsub operation} {
+    list [regsub a(a+) xaxaaaxaa {1\\122\1} foo] $foo
+} "1 {xax1\\122aaxaa}"
+test regexp-7.10 {basic regsub operation} {
+    list [regsub a(a+) xaxaaaxaa {1\\&\1} foo] $foo
+} "1 {xax1\\aaaaaxaa}"
+test regexp-7.11 {basic regsub operation} {
+    list [regsub a(a+) xaxaaaxaa {1\&\1} foo] $foo
+} {1 xax1&aaxaa}
+test regexp-7.12 {basic regsub operation} {
+    list [regsub a(a+) xaxaaaxaa {\1\1\1\1&&} foo] $foo
+} {1 xaxaaaaaaaaaaaaaaxaa}
+test regexp-7.13 {basic regsub operation} {
+    set foo xxx
+    list [regsub abc xyz 111 foo] $foo
+} {0 xyz}
+test regexp-7.14 {basic regsub operation} {
+    set foo xxx
+    list [regsub ^ xyz "111 " foo] $foo
+} {1 {111 xyz}}
+test regexp-7.15 {basic regsub operation} {
+    set foo xxx
+    list [regsub -- -foo abc-foodef "111 " foo] $foo
+} {1 {abc111 def}}
+test regexp-7.16 {basic regsub operation} {
+    set foo xxx
+    list [regsub x "" y foo] $foo
+} {0 {}}
+
+test regexp-8.1 {case conversion in regsub} {
+    list [regsub -nocase a(a+) xaAAaAAay & foo] $foo
+} {1 xaAAaAAay}
+test regexp-8.2 {case conversion in regsub} {
+    list [regsub -nocase a(a+) xaAAaAAay & foo] $foo
+} {1 xaAAaAAay}
+test regexp-8.3 {case conversion in regsub} {
+    set foo 123
+    list [regsub a(a+) xaAAaAAay & foo] $foo
+} {0 xaAAaAAay}
+test regexp-8.4 {case conversion in regsub} {
+    set foo 123
+    list [regsub -nocase a CaDE b foo] $foo
+} {1 CbDE}
+test regexp-8.5 {case conversion in regsub} {
+    set foo 123
+    list [regsub -nocase XYZ CxYzD b foo] $foo
+} {1 CbD}
+test regexp-8.6 {case conversion in regsub} {
+    set x abcdefghijklmnopqrstuvwxyz1234567890
+    set x $x$x$x$x$x$x$x$x$x$x$x$x
+    set foo 123
+    list [regsub -nocase $x $x b foo] $foo
+} {1 b}
+
+test regexp-9.1 {-all option to regsub} {
+    set foo 86
+    list [regsub -all x+ axxxbxxcxdx |&| foo] $foo
+} {4 a|xxx|b|xx|c|x|d|x|}
+test regexp-9.2 {-all option to regsub} {
+    set foo 86
+    list [regsub -nocase -all x+ aXxXbxxcXdx |&| foo] $foo
+} {4 a|XxX|b|xx|c|X|d|x|}
+test regexp-9.3 {-all option to regsub} {
+    set foo 86
+    list [regsub x+ axxxbxxcxdx |&| foo] $foo
+} {1 a|xxx|bxxcxdx}
+test regexp-9.4 {-all option to regsub} {
+    set foo 86
+    list [regsub -all bc axxxbxxcxdx |&| foo] $foo
+} {0 axxxbxxcxdx}
+test regexp-9.5 {-all option to regsub} {
+    set foo xxx
+    list [regsub -all node "node node more" yy foo] $foo
+} {2 {yy yy more}}
+test regexp-9.6 {-all option to regsub} {
+    set foo xxx
+    list [regsub -all ^ xxx 123 foo] $foo
+} {1 123xxx}
+
+test regexp-10.1 {regsub errors} {
+    list [catch {regsub a b c} msg] $msg
+} {1 {wrong # args: should be "regsub ?switches? exp string subSpec varName"}}
+test regexp-10.2 {regsub errors} {
+    list [catch {regsub -nocase a b c} msg] $msg
+} {1 {wrong # args: should be "regsub ?switches? exp string subSpec varName"}}
+test regexp-10.3 {regsub errors} {
+    list [catch {regsub -nocase -all a b c} msg] $msg
+} {1 {wrong # args: should be "regsub ?switches? exp string subSpec varName"}}
+test regexp-10.4 {regsub errors} {
+    list [catch {regsub a b c d e f} msg] $msg
+} {1 {wrong # args: should be "regsub ?switches? exp string subSpec varName"}}
+test regexp-10.5 {regsub errors} {
+    list [catch {regsub -gorp a b c} msg] $msg
+} {1 {bad switch "-gorp": must be -all, -nocase, or --}}
+test regexp-10.6 {regsub errors} {
+    list [catch {regsub -nocase a( b c d} msg] $msg
+} {1 {couldn't compile regular expression pattern: unmatched ()}}
+test regexp-10.7 {regsub errors} {
+    list [catch {regsub -nocase aaa aaa xxx f1(f2)} msg] $msg
+} {1 {couldn't set variable "f1(f2)"}}