1 # Commands covered: regexp, regsub
3 # This file contains a collection of tests for one or more of the Tcl
4 # built-in commands. Sourcing this file into Tcl runs the tests and
5 # generates output for errors. No output means no errors were found.
7 # Copyright (c) 1991-1993 The Regents of the University of California.
8 # Copyright (c) 1998 Sun Microsystems, Inc.
9 # Copyright (c) 1998-1999 by Scriptics Corporation.
11 # See the file "license.terms" for information on usage and redistribution
12 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
14 # RCS: @(#) $Id: regexp.test,v 1.30.2.1 2008/08/21 23:19:06 hobbs Exp $
16 source [file dirname [info script]]/testing.tcl
21 test regexp-1.1 {basic regexp operation} {
24 test regexp-1.2 {basic regexp operation} {
27 test regexp-1.3 {basic regexp operation} {
30 test regexp-1.4 {basic regexp operation} {
31 regexp -- -gorp abc-gorpxxx
33 test regexp-1.5 {basic regexp operation} {
34 regexp {^([^ ]*)[ ]*([^ ]*)} "" a
36 #test regexp-1.6 {basic regexp operation} {
37 # list [catch {regexp {} abc} msg] $msg
39 #test regexp-1.7 {regexp utf compliance} {
40 # # if not UTF-8 aware, result is "0 1"
42 # regexp "\u4e4eb q" "a\u4e4eb qw\u5e4e\x4e wq" bar
43 # list [string compare $foo $bar] [regexp 4 $bar]
47 test regexp-2.1 {getting substrings back from regexp} {
49 list [regexp ab*c abbbbc foo] $foo
51 test regexp-2.2 {getting substrings back from regexp} {
54 list [regexp a(b*)c abbbbc foo f2] $foo $f2
56 test regexp-2.3 {getting substrings back from regexp} {
59 list [regexp a(b*)(c) abbbbc foo f2] $foo $f2
61 test regexp-2.4 {getting substrings back from regexp} {
65 list [regexp a(b*)(c) abbbbc foo f2 f3] $foo $f2 $f3
67 test regexp-2.5 {getting substrings back from regexp} {
68 set foo {}; set f1 {}; set f2 {}; set f3 {}; set f4 {}; set f5 {};
69 set f6 {}; set f7 {}; set f8 {}; set f9 {}; set fa {}; set fb {};
70 list [regexp (1*)(2*)(3*)(4*)(5*)(6*)(7*)(8*)(9*)(a*)(b*) \
71 12223345556789999aabbb \
72 foo f1 f2 f3 f4 f5 f6 f7 f8 f9 fa fb] $foo $f1 $f2 $f3 $f4 $f5 \
73 $f6 $f7 $f8 $f9 $fa $fb
74 } {1 12223345556789999aabbb 1 222 33 4 555 6 7 8 9999 aa bbb}
75 test regexp-2.6 {getting substrings back from regexp} {
76 set foo 2; set f2 2; set f3 2; set f4 2
77 list [regexp (a)(b)? xay foo f2 f3 f4] $foo $f2 $f3 $f4
79 test regexp-2.7 {getting substrings back from regexp} {
80 set foo 1; set f2 1; set f3 1; set f4 1
81 list [regexp (a)(b)?(c) xacy foo f2 f3 f4] $foo $f2 $f3 $f4
83 test regexp-2.8 {getting substrings back from regexp} {
85 list [regexp {^a*b} aaaab match] $match
87 test regexp-2.9 {getting substrings back from regexp} {
90 list [regexp f\352te(b*)c f\352tebbbbc foo f2] $foo $f2
91 } [list 1 f\352tebbbbc bbbb]
92 test regexp-2.10 {getting substrings back from regexp} {
95 list [regexp f\352te(b*)c eff\352tebbbbc foo f2] $foo $f2
96 } [list 1 f\352tebbbbc bbbb]
98 test regexp-3.1 {-indices option to regexp} {
100 list [regexp -indices ab*c abbbbc foo] $foo
102 test regexp-3.2 {-indices option to regexp} {
105 list [regexp -indices a(b*)c abbbbc foo f2] $foo $f2
107 test regexp-3.3 {-indices option to regexp} {
110 list [regexp -indices a(b*)(c) abbbbc foo f2] $foo $f2
112 test regexp-3.4 {-indices option to regexp} {
116 list [regexp -indices a(b*)(c) abbbbc foo f2 f3] $foo $f2 $f3
117 } {1 {0 5} {1 4} {5 5}}
118 test regexp-3.5 {-indices option to regexp} {
119 set foo {}; set f1 {}; set f2 {}; set f3 {}; set f4 {}; set f5 {};
120 set f6 {}; set f7 {}; set f8 {}; set f9 {}
121 list [regexp -indices (1*)(2*)(3*)(4*)(5*)(6*)(7*)(8*)(9*) \
123 foo f1 f2 f3 f4 f5 f6 f7 f8 f9] $foo $f1 $f2 $f3 $f4 $f5 \
125 } {1 {0 16} {0 0} {1 3} {4 5} {6 6} {7 9} {10 10} {11 11} {12 12} {13 16}}
126 test regexp-3.6 {getting substrings back from regexp} {
127 set foo 2; set f2 2; set f3 2; set f4 2
128 list [regexp -indices (a)(b)? xay foo f2 f3 f4] $foo $f2 $f3 $f4
129 } {1 {1 1} {1 1} {-1 -1} {-1 -1}}
130 test regexp-3.7 {getting substrings back from regexp} {
131 set foo 1; set f2 1; set f3 1; set f4 1
132 list [regexp -indices (a)(b)?(c) xacy foo f2 f3 f4] $foo $f2 $f3 $f4
133 } {1 {1 2} {1 1} {-1 -1} {2 2}}
135 test regexp-4.1 {-nocase option to regexp} {
136 regexp -nocase foo abcFOo
138 test regexp-4.2 {-nocase option to regexp} {
142 list [regexp -nocase {a(b*)([xy]*)z} aBbbxYXxxZ22 f1 f2 f3] $f1 $f2 $f3
143 } {1 aBbbxYXxxZ Bbb xYXxx}
144 test regexp-4.3 {-nocase option to regexp} {
145 regexp -nocase FOo abcFOo
147 set x abcdefghijklmnopqrstuvwxyz1234567890
148 set x $x$x$x$x$x$x$x$x$x$x$x$x
149 test regexp-4.4 {case conversion in regexp} {
150 list [regexp -nocase $x $x foo] $foo
154 test regexp-5.1 {exercise cache of compiled expressions} {
162 test regexp-5.2 {exercise cache of compiled expressions} {
170 test regexp-5.3 {exercise cache of compiled expressions} {
178 test regexp-5.4 {exercise cache of compiled expressions} {
186 test regexp-5.5 {exercise cache of compiled expressions} {
195 test regexp-6.1 {regexp errors} jim {
196 list [catch {regexp a} msg] $msg
197 } {1 {wrong # args: should be "regexp ?switches? exp string ?matchVar? ?subMatchVar subMatchVar ...?"}}
198 test regexp-6.2 {regexp errors} jim {
199 list [catch {regexp -nocase a} msg] $msg
200 } {1 {wrong # args: should be "regexp ?switches? exp string ?matchVar? ?subMatchVar subMatchVar ...?"}}
201 test regexp-6.3 {regexp errors} jim {
202 list [catch {regexp -gorp a} msg] $msg
203 } {1 {bad switch "-gorp": must be --, -all, -indices, -inline, -line, -nocase, or -start}}
204 test regexp-6.4 {regexp errors} {
205 catch {regexp a( b} msg
207 #test regexp-6.5 {regexp errors} {
208 # list [catch {regexp a) b} msg] [string match *parentheses* $msg]
210 test regexp-6.6 {regexp errors} {
211 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
213 test regexp-6.7 {regexp errors} {
214 list [catch {regexp (x)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.) xyzzy} msg] $msg
216 test regexp-6.8 {regexp errors} jim {
219 list [catch {regexp abc abc f1(f2)} msg] $msg
220 } {1 {can't set "f1(f2)": variable isn't array}}
221 test regexp-6.9 {regexp errors, -start bad int check} {
222 list [catch {regexp -start bogus {^$} {}} msg] $msg
223 } {1 {bad index "bogus": must be integer?[+-]integer? or end?[+-]integer?}}
225 test regexp-7.1 {basic regsub operation} {
226 list [regsub aa+ xaxaaaxaa 111&222 foo] $foo
227 } {1 xax111aaa222xaa}
228 test regexp-7.2 {basic regsub operation} {
229 list [regsub aa+ aaaxaa &111 foo] $foo
231 test regexp-7.3 {basic regsub operation} {
232 list [regsub aa+ xaxaaa 111& foo] $foo
234 test regexp-7.4 {basic regsub operation} {
235 list [regsub aa+ aaa 11&2&333 foo] $foo
237 test regexp-7.5 {basic regsub operation} {
238 list [regsub aa+ xaxaaaxaa &2&333 foo] $foo
239 } {1 xaxaaa2aaa333xaa}
240 test regexp-7.6 {basic regsub operation} {
241 list [regsub aa+ xaxaaaxaa 1&22& foo] $foo
242 } {1 xax1aaa22aaaxaa}
243 test regexp-7.7 {basic regsub operation} {
244 list [regsub a(a+) xaxaaaxaa {1\122\1} foo] $foo
246 test regexp-7.8 {basic regsub operation} {
247 list [regsub a(a+) xaxaaaxaa {1\\\122\1} foo] $foo
248 } "1 {xax1\\aa22aaxaa}"
249 test regexp-7.9 {basic regsub operation} {
250 list [regsub a(a+) xaxaaaxaa {1\\122\1} foo] $foo
251 } "1 {xax1\\122aaxaa}"
252 test regexp-7.10 {basic regsub operation} {
253 list [regsub a(a+) xaxaaaxaa {1\\&\1} foo] $foo
254 } "1 {xax1\\aaaaaxaa}"
255 test regexp-7.11 {basic regsub operation} {
256 list [regsub a(a+) xaxaaaxaa {1\&\1} foo] $foo
258 test regexp-7.12 {basic regsub operation} {
259 list [regsub a(a+) xaxaaaxaa {\1\1\1\1&&} foo] $foo
260 } {1 xaxaaaaaaaaaaaaaaxaa}
261 test regexp-7.13 {basic regsub operation} {
263 list [regsub abc xyz 111 foo] $foo
265 test regexp-7.14 {basic regsub operation} {
267 list [regsub ^ xyz "111 " foo] $foo
269 test regexp-7.15 {basic regsub operation} {
271 list [regsub -- -foo abc-foodef "111 " foo] $foo
273 test regexp-7.16 {basic regsub operation} {
275 list [regsub x "" y foo] $foo
277 #test regexp-7.17 {regsub utf compliance} {
278 # # if not UTF-8 aware, result is "0 1"
279 # set foo "xyz555ijka\u4e4ebpqr"
280 # regsub a\u4e4eb xyza\u4e4ebijka\u4e4ebpqr 555 bar
281 # list [string compare $foo $bar] [regexp 4 $bar]
284 test regexp-8.1 {case conversion in regsub} {
285 list [regsub -nocase a(a+) xaAAaAAay & foo] $foo
287 test regexp-8.2 {case conversion in regsub} {
288 list [regsub -nocase a(a+) xaAAaAAay & foo] $foo
290 test regexp-8.3 {case conversion in regsub} {
292 list [regsub a(a+) xaAAaAAay & foo] $foo
294 test regexp-8.4 {case conversion in regsub} {
296 list [regsub -nocase a CaDE b foo] $foo
298 test regexp-8.5 {case conversion in regsub} {
300 list [regsub -nocase XYZ CxYzD b foo] $foo
302 test regexp-8.6 {case conversion in regsub} {
303 set x abcdefghijklmnopqrstuvwxyz1234567890
304 set x $x$x$x$x$x$x$x$x$x$x$x$x
306 list [regsub -nocase $x $x b foo] $foo
309 test regexp-9.1 {-all option to regsub} {
311 list [regsub -all x+ axxxbxxcxdx |&| foo] $foo
312 } {4 a|xxx|b|xx|c|x|d|x|}
313 test regexp-9.2 {-all option to regsub} {
315 list [regsub -nocase -all x+ aXxXbxxcXdx |&| foo] $foo
316 } {4 a|XxX|b|xx|c|X|d|x|}
317 test regexp-9.3 {-all option to regsub} {
319 list [regsub x+ axxxbxxcxdx |&| foo] $foo
321 test regexp-9.4 {-all option to regsub} {
323 list [regsub -all bc axxxbxxcxdx |&| foo] $foo
325 test regexp-9.5 {-all option to regsub} {
327 list [regsub -all node "node node more" yy foo] $foo
329 test regexp-9.6 {-all option to regsub} {
331 list [regsub -all ^ xxx 123 foo] $foo
334 test regexp-10.2 {newline sensitivity in regsub} {
336 list [regsub -line {^a.*b$} "dabc\naxyb\n" 123 foo] $foo
338 test regexp-10.3 {newline sensitivity in regsub} {
340 list [regsub -line {^a.*b$} "dabc\naxyb\nxb" 123 foo] $foo
341 } "1 {dabc\n123\nxb}"
342 #test regexp-10.4 {partial newline sensitivity in regsub} {
344 # list [regsub -lineanchor {^a.*b$} "da\naxyb\nxb" 123 foo] $foo
346 #test regexp-10.5 {inverse partial newline sensitivity in regsub} {
348 # list [regsub -linestop {a.*b} "da\nbaxyb\nxb" 123 foo] $foo
349 #} "1 {da\nb123\nxb}"
351 test regexp-11.1 {regsub errors} jim {
352 list [catch {regsub a b} msg] $msg
353 } {1 {wrong # args: should be "regsub ?switches? exp string subSpec ?varName?"}}
354 test regexp-11.2 {regsub errors} jim {
355 list [catch {regsub -nocase a b} msg] $msg
356 } {1 {wrong # args: should be "regsub ?switches? exp string subSpec ?varName?"}}
357 test regexp-11.3 {regsub errors} jim {
358 list [catch {regsub -nocase -all a b} msg] $msg
359 } {1 {wrong # args: should be "regsub ?switches? exp string subSpec ?varName?"}}
360 test regexp-11.4 {regsub errors} jim {
361 list [catch {regsub a b c d e f} msg] $msg
362 } {1 {wrong # args: should be "regsub ?switches? exp string subSpec ?varName?"}}
363 test regexp-11.5 {regsub errors} jim {
364 list [catch {regsub -gorp a b c} msg] $msg
365 } {1 {bad switch "-gorp": must be --, -all, -line, -nocase, or -start}}
366 test regexp-11.6 {regsub errors} {
367 catch {regsub -nocase a( b c d} msg
369 test regexp-11.7 {regsub errors} jim {
372 list [catch {regsub -nocase aaa aaa xxx f1(f2)} msg] $msg
373 } {1 {can't set "f1(f2)": variable isn't array}}
374 test regexp-11.8 {regsub errors, -start bad int check} {
375 list [catch {regsub -start bogus pattern string rep var} msg] $msg
376 } {1 {bad index "bogus": must be integer?[+-]integer? or end?[+-]integer?}}
377 test regexp-11.9 {regsub without final variable name returns value} {
380 test regexp-11.10 {regsub without final variable name returns value} {
381 regsub -all a abaca X
384 test regexp-11.11 {regsub without final variable name returns value} {
385 regsub b(\[^d\]*)d abcdeabcfde {,&,\1,}
387 test regexp-11.12 {regsub without final variable name returns value} {
388 regsub -all b(\[^d\]*)d abcdeabcfde {,&,\1,}
389 } {a,bcd,c,ea,bcfd,cf,e}
391 # This test crashes on the Mac unless you increase the Stack Space to about 1
392 # Meg. This is probably bigger than most users want...
393 # 8.2.3 regexp reduced stack space requirements, but this should be
395 test regexp-12.1 {Tcl_RegExpExec: large number of subexpressions} {
396 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
397 } {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}
399 test regexp-13.1 {regsub of a very large string} {
400 # This test is designed to stress the memory subsystem in order
401 # to catch Bug #933. It only fails if the Tcl memory allocator
404 set line {BEGIN_TABLE ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; END_TABLE}
405 set filedata [string repeat $line 200]
406 for {set i 1} {$i<10} {incr i} {
407 regsub -all "BEGIN_TABLE " $filedata "" newfiledata
412 test regexp-14.1 {CompileRegexp: regexp cache} {
422 test regexp-14.2 {CompileRegexp: regexp cache, different flags} {
430 regexp -nocase $x bbba
433 #test regexp-15.1 {regexp -start} {
435 # list [regexp -start -10 {\d} 1abc2de3 x] $x
437 #test regexp-15.2 {regexp -start} {
439 # list [regexp -start 2 {\d} 1abc2de3 x] $x
441 #test regexp-15.3 {regexp -start} {
443 # list [regexp -start 4 {\d} 1abc2de3 x] $x
445 #test regexp-15.4 {regexp -start} {
447 # list [regexp -start 5 {\d} 1abc2de3 x] $x
449 test regexp-15.5 {regexp -start, over end of string} {
451 list [regexp -start [string length 1abc2de3] {\d} 1abc2de3 x] [info exists x]
453 test regexp-15.6 {regexp -start, loss of ^$ behavior} {
454 list [regexp -start 2 {^$} {}]
456 test regexp-15.7 {regexp -start, double option} {
457 regexp -start 2 -start 0 a abc
459 test regexp-15.8 {regexp -start, double option} {
460 regexp -start 0 -start 2 a abc
462 #test regexp-15.9 {regexp -start, end relative index} {
464 # list [regexp -start end {\d} 1abc2de3 x] [info exists x]
466 #test regexp-15.10 {regexp -start, end relative index} {
468 # list [regexp -start end-1 {\d} 1abc2de3 x] [info exists x] $x
471 #test regexp-16.1 {regsub -start} {
473 # list [regsub -all -start 2 {\d} a1b2c3d4e5 {/&} x] $x
474 #} {4 a1b/2c/3d/4e/5}
475 test regexp-16.2 {regsub -start} {
477 list [regsub -all -start -25 {z} hello {/&} x] $x
479 test regexp-16.3 {regsub -start} {
481 list [regsub -all -start 3 {z} hello {/&} x] $x
483 #test regexp-16.4 {regsub -start, \A behavior} {
485 # lappend out [regsub -start 0 -all {\A(\w)} {abcde} {/\1} x] $x
486 # lappend out [regsub -start 2 -all {\A(\w)} {abcde} {/\1} x] $x
487 #} {5 /a/b/c/d/e 3 ab/c/d/e}
488 test regexp-16.5 {regsub -start, double option} {
489 list [regsub -start 2 -start 0 a abc c x] $x
491 test regexp-16.6 {regsub -start, double option} {
492 list [regsub -start 0 -start 2 a abc c x] $x
494 test regexp-16.7 {regexp -start, end relative index} {
495 list [regsub -start end a aaa b x] $x
497 test regexp-16.8 {regexp -start, end relative index} {
498 list [regsub -start end-1 a aaa b x] $x
501 test regexp-17.1 {regexp -inline} {
502 regexp -inline b ababa
504 test regexp-17.2 {regexp -inline} {
505 regexp -inline (b) ababa
507 test regexp-17.3 {regexp -inline -indices} {
508 regexp -inline -indices (b) ababa
510 #test regexp-17.4 {regexp -inline} {
511 # regexp -inline {\w(\d+)\w} " hello 23 there456def "
513 #test regexp-17.5 {regexp -inline no matches} {
514 # regexp -inline {\w(\d+)\w} ""
516 test regexp-17.6 {regexp -inline no matches} {
517 regexp -inline hello goodbye
519 test regexp-17.7 {regexp -inline, no matchvars allowed} {
520 list [catch {regexp -inline b abc match} msg] $msg
521 } {1 {regexp match variables not allowed when using -inline}}
523 test regexp-18.1 {regexp -all} {
526 test regexp-18.2 {regexp -all} {
527 regexp -all b abababbabaaaaaaaaaab
529 test regexp-18.3 {regexp -all -inline} {
530 regexp -all -inline b abababbabaaaaaaaaaab
532 #test regexp-18.4 {regexp -all -inline} {
533 # regexp -all -inline {\w(\w)} abcdefg
535 #test regexp-18.5 {regexp -all -inline} {
536 # regexp -all -inline {\w(\w)$} abcdefg
538 #test regexp-18.6 {regexp -all -inline} {
539 # regexp -all -inline {\d+} 10:20:30:40
541 test regexp-18.7 {regexp -all -inline} {
542 list [catch {regexp -all -inline b abc match} msg] $msg
543 } {1 {regexp match variables not allowed when using -inline}}
544 test regexp-18.8 {regexp -all} {
545 # This should not cause an infinite loop
546 regexp -all -inline {a*} a
548 test regexp-18.9 {regexp -all} {
549 # Yes, the expected result is {a {}}. Here's why:
550 # Start at index 0; a* matches the "a" there then stops.
551 # Go to index 1; a* matches the lambda (or {}) there then stops. Recall
552 # that a* matches zero or more "a"'s; thus it matches the string "b", as
553 # there are zero or more "a"'s there.
554 # Go to index 2; this is past the end of the string, so stop.
555 regexp -all -inline {a*} ab
557 test regexp-18.10 {regexp -all} {
558 # Yes, the expected result is {a {} a}. Here's why:
559 # Start at index 0; a* matches the "a" there then stops.
560 # Go to index 1; a* matches the lambda (or {}) there then stops. Recall
561 # that a* matches zero or more "a"'s; thus it matches the string "b", as
562 # there are zero or more "a"'s there.
563 # Go to index 2; a* matches the "a" there then stops.
564 # Go to index 3; this is past the end of the string, so stop.
565 regexp -all -inline {a*} aba
567 test regexp-18.11 {regexp -all} {
568 regexp -all -inline {^a} aaaa
570 test regexp-18.12 {regexp -all -inline -indices} {
571 regexp -all -inline -indices a(b(c)d|e(f)g)h abcdhaefgh
572 } {{0 4} {1 3} {2 2} {-1 -1} {5 9} {6 8} {-1 -1} {7 7}}
574 test regexp-19.1 {regsub null replacement} {
575 regsub -all {@} {@hel@lo@} "\0a\0" result
576 list $result [string length $result]
577 } "\0a\0hel\0a\0lo\0a\0 14"
579 #test regexp-20.1 {regsub shared object shimmering} {
581 # set a abcdefghijklmnopqurstuvwxyz
583 # set c abcdefghijklmnopqurstuvwxyz0123456789
585 # list $d [string length $d] [string bytelength $d]
586 #} [list abcdefghijklmnopqurstuvwxyz0123456789 37 37]
587 #test regexp-20.2 {regsub shared object shimmering with -about} {
588 # eval regexp -about abc
591 test regexp-21.1 {regsub works with empty string} {
595 test regexp-21.2 {regsub works with empty string} {
599 test regexp-21.3 {regsub works with empty string offset} {
600 regsub -start 0 -- ^ {} foo
603 test regexp-21.4 {regsub works with empty string offset} {
604 regsub -start 0 -- \$ {} foo
607 test regexp-21.5 {regsub works with empty string offset} {
608 regsub -start 3 -- \$ {123} foo
611 test regexp-21.6 {regexp works with empty string} {
615 test regexp-21.7 {regexp works with empty string} {
616 regexp -start 0 -- ^ {}
619 test regexp-21.8 {regexp works with empty string offset} {
620 regexp -start 3 -- ^ {123}
623 test regexp-21.9 {regexp works with empty string offset} {
624 regexp -start 3 -- \$ {123}
627 #test regexp-21.10 {multiple matches handle newlines} {
628 # regsub -all -lineanchor -- {^#[^\n]*\n} "#one\n#two\n#three\n" foo\n
631 test regexp-21.11 {multiple matches handle newlines} {
632 regsub -all -line -- ^ "a\nb\nc" \#
635 test regexp-21.12 {multiple matches handle newlines} {
636 regsub -all -line -- ^ "\n\n" \#
639 test regexp-21.13 {multiple matches handle newlines} {
640 regexp -all -inline -indices -line -- ^ "a\nb\nc"
641 } {{0 -1} {2 1} {4 3}}
643 test regexp-21.14 {Literal newline in pattern} {
644 regexp -all -inline "\n(\[ \t\]+)" "\n\t\t# This is a test"
647 test regexp-22.1 {effect of caching} jim {
649 set filedata {BEGIN_TABLE ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; END_TABLE}
651 # Note: use 2 REs because often libc will cache a single regcomp() result
653 # t1 should be faster because the compiled re can be cached.
655 set re2 "BEGIN_TABLE"
658 regexp -inline -all $re1 $filedata
659 regexp -inline -all $re2 $filedata
662 # t2 should be slower since the re's need to be recompiled every time
666 regexp -inline -all $re1 $filedata
669 regexp -inline -all $re2 $filedata
672 set t1 [lindex $t1 0]
673 set t2 [lindex $t2 0]
675 # If these two times are within 20% of each other, caching isn't working
676 expr {$t2 * 1.0 / $t1 < 1.2 && $t1 * 1.0 / $t2 < 1.2}