# 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) 1998 Sun Microsystems, Inc. # Copyright (c) 1998-1999 by Scriptics Corporation. # # 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 1.22.2.2 2003/10/07 04:48:07 dgp Exp $ if {[lsearch [namespace children] ::tcltest] == -1} { package require tcltest 2 namespace import -force ::tcltest::* } 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-1.6 {basic regexp operation} { list [catch {regexp {} abc} msg] $msg } {0 1} test regexp-1.7 {regexp utf compliance} { # if not UTF-8 aware, result is "0 1" set foo "\u4e4eb q" regexp "\u4e4eb q" "a\u4e4eb qw\u5e4e\x4e wq" bar list [string compare $foo $bar] [regexp 4 $bar] } {0 0} 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-2.8 {getting substrings back from regexp} { set match {} list [regexp {^a*b} aaaab match] $match } {1 aaaab} test regexp-2.9 {getting substrings back from regexp} { set foo {} set f2 {} list [regexp f\352te(b*)c f\352tebbbbc foo f2] $foo $f2 } [list 1 f\352tebbbbc bbbb] test regexp-2.10 {getting substrings back from regexp} { set foo {} set f2 {} list [regexp f\352te(b*)c eff\352tebbbbc foo f2] $foo $f2 } [list 1 f\352tebbbbc bbbb] 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 regexp} { list [regexp -nocase $x $x foo] $foo } "1 $x" catch {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 -all, -about, -indices, -inline, -expanded, -line, -linestop, -lineanchor, -nocase, -start, or --}} test regexp-6.4 {regexp errors} { list [catch {regexp a( b} msg] $msg } {1 {couldn't compile regular expression pattern: parentheses () not balanced}} test regexp-6.5 {regexp errors} { list [catch {regexp a( b} msg] $msg } {1 {couldn't compile regular expression pattern: parentheses () not balanced}} 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 } {0 0} test regexp-6.8 {regexp errors} { catch {unset f1} set f1 44 list [catch {regexp abc abc f1(f2)} msg] $msg } {1 {couldn't set variable "f1(f2)"}} test regexp-6.9 {regexp errors, -start bad int check} { list [catch {regexp -start bogus {^$} {}} msg] $msg } {1 {expected integer but got "bogus"}} 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-7.17 {regsub utf compliance} { # if not UTF-8 aware, result is "0 1" set foo "xyz555ijka\u4e4ebpqr" regsub a\u4e4eb xyza\u4e4ebijka\u4e4ebpqr 555 bar list [string compare $foo $bar] [regexp 4 $bar] } {0 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 {expanded syntax in regsub} { set foo xxx list [regsub -expanded ". \#comment\n . \#comment2" abc def foo] $foo } {1 defc} test regexp-10.2 {newline sensitivity in regsub} { set foo xxx list [regsub -line {^a.*b$} "dabc\naxyb\n" 123 foo] $foo } "1 {dabc\n123\n}" test regexp-10.3 {newline sensitivity in regsub} { set foo xxx list [regsub -line {^a.*b$} "dabc\naxyb\nxb" 123 foo] $foo } "1 {dabc\n123\nxb}" test regexp-10.4 {partial newline sensitivity in regsub} { set foo xxx list [regsub -lineanchor {^a.*b$} "da\naxyb\nxb" 123 foo] $foo } "1 {da\n123}" test regexp-10.5 {inverse partial newline sensitivity in regsub} { set foo xxx list [regsub -linestop {a.*b} "da\nbaxyb\nxb" 123 foo] $foo } "1 {da\nb123\nxb}" test regexp-11.1 {regsub errors} { list [catch {regsub a b} msg] $msg } {1 {wrong # args: should be "regsub ?switches? exp string subSpec ?varName?"}} test regexp-11.2 {regsub errors} { list [catch {regsub -nocase a b} msg] $msg } {1 {wrong # args: should be "regsub ?switches? exp string subSpec ?varName?"}} test regexp-11.3 {regsub errors} { list [catch {regsub -nocase -all a b} msg] $msg } {1 {wrong # args: should be "regsub ?switches? exp string subSpec ?varName?"}} test regexp-11.4 {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-11.5 {regsub errors} { list [catch {regsub -gorp a b c} msg] $msg } {1 {bad switch "-gorp": must be -all, -nocase, -expanded, -line, -linestop, -lineanchor, -start, or --}} test regexp-11.6 {regsub errors} { list [catch {regsub -nocase a( b c d} msg] $msg } {1 {couldn't compile regular expression pattern: parentheses () not balanced}} test regexp-11.7 {regsub errors} { catch {unset f1} set f1 44 list [catch {regsub -nocase aaa aaa xxx f1(f2)} msg] $msg } {1 {couldn't set variable "f1(f2)"}} test regexp-11.8 {regsub errors, -start bad int check} { list [catch {regsub -start bogus pattern string rep var} msg] $msg } {1 {expected integer but got "bogus"}} test regexp-11.9 {regsub without final variable name returns value} { regsub b abaca X } {aXaca} test regexp-11.10 {regsub without final variable name returns value} { regsub -all a abaca X } {XbXcX} test regexp-11.11 {regsub without final variable name returns value} { regsub b(.*?)d abcdeabcfde {,&,\1,} } {a,bcd,c,eabcfde} test regexp-11.12 {regsub without final variable name returns value} { regsub -all b(.*?)d abcdeabcfde {,&,\1,} } {a,bcd,c,ea,bcfd,cf,e} # This test crashes on the Mac unless you increase the Stack Space to about 1 # Meg. This is probably bigger than most users want... # 8.2.3 regexp reduced stack space requirements, but this should be # tested again test regexp-12.1 {Tcl_RegExpExec: large number of subexpressions} {macCrash} { list [regexp (.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.) abcdefghijklmnopqrstuvwxyz all a b c d e f g h i j k l m n o p q r s t u v w x y z] $all $a $b $c $d $e $f $g $h $i $j $k $l $m $n $o $p $q $r $s $t $u $v $w $x $y $z } {1 abcdefghijklmnopqrstuvwxyz a b c d e f g h i j k l m n o p q r s t u v w x y z} test regexp-13.1 {regsub of a very large string} { # This test is designed to stress the memory subsystem in order # to catch Bug #933. It only fails if the Tcl memory allocator # is in use. set line {BEGIN_TABLE ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; END_TABLE} set filedata [string repeat $line 200] for {set i 1} {$i<10} {incr i} { regsub -all "BEGIN_TABLE " $filedata "" newfiledata } set x done } {done} test regexp-14.1 {CompileRegexp: regexp cache} { regexp .*a b regexp .*b c regexp .*c d regexp .*d e regexp .*e f set x . append x *a regexp $x bbba } 1 test regexp-14.2 {CompileRegexp: regexp cache, different flags} { regexp .*a b regexp .*b c regexp .*c d regexp .*d e regexp .*e f set x . 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 { set junk [makeFile {puts [regexp {} foo]} junk.tcl] } -body { exec [interpreter] $junk } -cleanup { removeFile junk.tcl } -result 1 test regexp-15.1 {regexp -start} { catch {unset x} list [regexp -start -10 {\d} 1abc2de3 x] $x } {1 1} test regexp-15.2 {regexp -start} { catch {unset x} list [regexp -start 2 {\d} 1abc2de3 x] $x } {1 2} test regexp-15.3 {regexp -start} { catch {unset x} list [regexp -start 4 {\d} 1abc2de3 x] $x } {1 2} test regexp-15.4 {regexp -start} { catch {unset x} list [regexp -start 5 {\d} 1abc2de3 x] $x } {1 3} test regexp-15.5 {regexp -start, over end of string} { catch {unset x} list [regexp -start [string length 1abc2de3] {\d} 1abc2de3 x] [info exists x] } {0 0} test regexp-15.6 {regexp -start, loss of ^$ behavior} { list [regexp -start 2 {^$} {}] } {0} test regexp-16.1 {regsub -start} { catch {unset x} list [regsub -all -start 2 {\d} a1b2c3d4e5 {/&} x] $x } {4 a1b/2c/3d/4e/5} test regexp-16.2 {regsub -start} { catch {unset x} list [regsub -all -start -25 {z} hello {/&} x] $x } {0 hello} test regexp-16.3 {regsub -start} { catch {unset x} list [regsub -all -start 3 {z} hello {/&} x] $x } {0 hello} test regexp-16.4 {regsub -start, \A behavior} { set out {} lappend out [regsub -start 0 -all {\A(\w)} {abcde} {/\1} x] $x lappend out [regsub -start 2 -all {\A(\w)} {abcde} {/\1} x] $x } {5 /a/b/c/d/e 3 ab/c/d/e} test regexp-17.1 {regexp -inline} { regexp -inline b ababa } {b} test regexp-17.2 {regexp -inline} { regexp -inline (b) ababa } {b b} test regexp-17.3 {regexp -inline -indices} { regexp -inline -indices (b) ababa } {{1 1} {1 1}} test regexp-17.4 {regexp -inline} { regexp -inline {\w(\d+)\w} " hello 23 there456def " } {e456d 456} test regexp-17.5 {regexp -inline no matches} { regexp -inline {\w(\d+)\w} "" } {} test regexp-17.6 {regexp -inline no matches} { regexp -inline hello goodbye } {} test regexp-17.7 {regexp -inline, no matchvars allowed} { list [catch {regexp -inline b abc match} msg] $msg } {1 {regexp match variables not allowed when using -inline}} test regexp-18.1 {regexp -all} { regexp -all b bbbbb } {5} test regexp-18.2 {regexp -all} { regexp -all b abababbabaaaaaaaaaab } {6} test regexp-18.3 {regexp -all -inline} { regexp -all -inline b abababbabaaaaaaaaaab } {b b b b b b} test regexp-18.4 {regexp -all -inline} { regexp -all -inline {\w(\w)} abcdefg } {ab b cd d ef f} test regexp-18.5 {regexp -all -inline} { regexp -all -inline {\w(\w)$} abcdefg } {fg g} test regexp-18.6 {regexp -all -inline} { regexp -all -inline {\d+} 10:20:30:40 } {10 20 30 40} test regexp-18.7 {regexp -all -inline} { list [catch {regexp -all -inline b abc match} msg] $msg } {1 {regexp match variables not allowed when using -inline}} test regexp-18.8 {regexp -all} { # This should not cause an infinite loop regexp -all -inline {a*} a } {a} test regexp-18.9 {regexp -all} { # Yes, the expected result is {a {}}. Here's why: # Start at index 0; a* matches the "a" there then stops. # Go to index 1; a* matches the lambda (or {}) there then stops. Recall # that a* matches zero or more "a"'s; thus it matches the string "b", as # there are zero or more "a"'s there. # Go to index 2; this is past the end of the string, so stop. regexp -all -inline {a*} ab } {a {}} test regexp-18.10 {regexp -all} { # Yes, the expected result is {a {} a}. Here's why: # Start at index 0; a* matches the "a" there then stops. # Go to index 1; a* matches the lambda (or {}) there then stops. Recall # that a* matches zero or more "a"'s; thus it matches the string "b", as # there are zero or more "a"'s there. # Go to index 2; a* matches the "a" there then stops. # Go to index 3; this is past the end of the string, so stop. regexp -all -inline {a*} aba } {a {} a} test regexp-18.11 {regexp -all} { regexp -all -inline {^a} aaaa } {a} test regexp-18.12 {regexp -all -inline -indices} { regexp -all -inline -indices a(b(c)d|e(f)g)h abcdhaefgh } {{0 4} {1 3} {2 2} {-1 -1} {5 9} {6 8} {-1 -1} {7 7}} test regexp-19.1 {regsub null replacement} { regsub -all {@} {@hel@lo@} "\0a\0" result list $result [string length $result] } "\0a\0hel\0a\0lo\0a\0 14" test regexp-20.1 {regsub shared object shimmering} { # Bug #461322 set a abcdefghijklmnopqurstuvwxyz set b $a set c abcdefghijklmnopqurstuvwxyz0123456789 regsub $a $c $b d list $d [string length $d] [string bytelength $d] } [list abcdefghijklmnopqurstuvwxyz0123456789 37 37] test regexp-20.2 {regsub shared object shimmering with -about} { eval regexp -about abc } {0 {}} 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" # cleanup ::tcltest::cleanupTests return