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+# reg.test --
+#
+# 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) 1998-1999 by Scriptics Corporation.
+# All rights reserved.
+#
+# RCS: @(#) $Id: reg.test,v 1.2 1999/04/16 00:47:33 stanton Exp $
+
+if {[lsearch [namespace children] ::tcltest] == -1} {
+ source [file join [pwd] [file dirname [info script]] defs.tcl]
+}
+
+# All tests require the testregexp command, return if this
+# command doesn't exist
+
+set ::tcltest::testConfig(testregexp) \
+ [expr {[info commands testregexp] != {}}]
+
+# This file uses some custom procedures, defined below, for regexp regression
+# testing. The name of the procedure indicates the general nature of the
+# test: e for compile error expected, f for match failure expected, m
+# for a successful match, and i for a successful match with -indices (used
+# in checking things like nonparticipating subexpressions). There is also
+# a "doing" procedure which sets up title and major test number for each
+# block of tests, and an "xx" procedure which ignores its arguments and
+# arranges for the next invocation of "doing" to announce that some tests
+# were bypassed (which is better than just commenting them out).
+
+# The first 3 arguments are constant: a minor number (which often gets
+# a letter or two suffixed to it internally), some flags, and the RE itself.
+# For e, the remaining argument is the name of the compile error expected,
+# less the leading "REG_". For the rest, the next argument is the string
+# to try the match against. Remaining arguments are the substring expected
+# to be matched, and any substrings expected to be matched by subexpressions.
+# (For f, these arguments are optional, and if present are ignored except
+# that they indicate how many subexpressions should be presents in the RE.)
+# It is an error for the number of subexpression arguments to be wrong.
+# Cases involving nonparticipating subexpressions, checking where empty
+# substrings are located, etc. should be done using i.
+
+# The flag characters are complex and a bit eclectic. Generally speaking,
+# lowercase letters are compile options, uppercase are expected re_info
+# bits, and nonalphabetics are match options, controls for how the test is
+# run, or testing options. The one small surprise is that AREs are the
+# default, and you must explicitly request lesser flavors of RE. The flags
+# are as follows. It is admitted that some are not very mnemonic.
+# There are some others which are purely debugging tools and are not
+# useful in this file.
+#
+# - no-op (placeholder)
+# + provide fake xy equivalence class
+# % force small state-set cache in matcher (to test cache replace)
+# ^ beginning of string is not beginning of line
+# $ end of string is not end of line
+#
+# & test as both ARE and BRE
+# b BRE
+# e ERE
+# a turn advanced-features bit on (error unless ERE already)
+# q literal string, no metacharacters at all
+#
+# i case-independent matching
+# o ("opaque") no subexpression capture
+# p newlines are half-magic, excluded from . and [^ only
+# w newlines are half-magic, significant to ^ and $ only
+# n newlines are fully magic, both effects
+# x expanded RE syntax
+#
+# A backslash-_a_lphanumeric seen
+# B ERE/ARE literal-_b_race heuristic used
+# E backslash (_e_scape) seen within []
+# H looka_h_ead constraint seen
+# I _i_mpossible to match
+# L _l_ocale-specific construct seen
+# M unportable (_m_achine-specific) construct seen
+# N RE can match empty (_n_ull) string
+# P non-_P_OSIX construct seen
+# Q {} _q_uantifier seen
+# R back _r_eference seen
+# S POSIX-un_s_pecified syntax seen
+# U saw original-POSIX botch: unmatched right paren in ERE (_u_gh)
+
+# The one area we can't easily test is memory-allocation failures (which
+# are hard to provoke on command). Embedded NULs also are not tested at
+# the moment, but this is a historical accident which should be fixed.
+
+
+
+# test procedures and related
+
+set ask "about"
+set xflags "xflags"
+set testbypassed 0
+
+# re_info abbreviation mapping table
+set infonames(A) "REG_UBSALNUM"
+set infonames(B) "REG_UBRACES"
+set infonames(E) "REG_UBBS"
+set infonames(H) "REG_ULOOKAHEAD"
+set infonames(I) "REG_UIMPOSSIBLE"
+set infonames(L) "REG_ULOCALE"
+set infonames(M) "REG_UUNPORT"
+set infonames(N) "REG_UEMPTYMATCH"
+set infonames(P) "REG_UNONPOSIX"
+set infonames(Q) "REG_UBOUNDS"
+set infonames(R) "REG_UBACKREF"
+set infonames(S) "REG_UUNSPEC"
+set infonames(U) "REG_UPBOTCH"
+set infonameorder "RHQBAUEPSMLNI" ;# must match bit order, lsb first
+
+# set major test number and description
+proc doing {major desc} {
+ global prefix description testbypassed
+
+ if {$testbypassed != 0} {
+ puts stdout "!!! bypassed $testbypassed tests in\
+ $major, `$description'"
+ }
+
+ set prefix reg-$major
+ set description "reg $desc"
+ set testbypassed 0
+}
+
+# build test number (internal)
+proc tno {testid} {
+ return [lindex $testid 0]
+}
+
+# build description, with possible modifiers (internal)
+proc desc {testid} {
+ global description
+
+ set d $description
+ if {[llength $testid] > 1} {
+ set d "([lreplace $testid 0 0]) $d"
+ }
+ return $d
+}
+
+# build trailing options and flags argument from a flags string (internal)
+proc flags {fl} {
+ global xflags
+
+ set args [list]
+ set flags ""
+ foreach f [split $fl ""] {
+ switch -exact -- $f {
+ "i" { lappend args "-nocase" }
+ "x" { lappend args "-expanded" }
+ "n" { lappend args "-line" }
+ "p" { lappend args "-linestop" }
+ "w" { lappend args "-lineanchor" }
+ "-" { }
+ default { append flags $f }
+ }
+ }
+ if {[string compare $flags ""] != 0} {
+ lappend args -$xflags $flags
+ }
+ return $args
+}
+
+# build info-flags list from a flags string (internal)
+proc infoflags {fl} {
+ global infonames infonameorder
+
+ set ret [list]
+ foreach f [split $infonameorder ""] {
+ if {[string first $f $fl] >= 0} {
+ lappend ret $infonames($f)
+ }
+ }
+ return $ret
+}
+
+# compilation error expected
+proc e {testid flags re err} {
+ global prefix ask errorCode
+
+ # if &, test as both ARE and BRE
+ set amp [string first "&" $flags]
+ if {$amp >= 0} {
+ set f [string range $flags 0 [expr $amp - 1]]
+ append f [string range $flags [expr $amp + 1] end]
+ e [linsert $testid end ARE] ${f} $re $err
+ e [linsert $testid end BRE] ${f}b $re $err
+ return
+ }
+
+ set cmd [concat [list testregexp -$ask] [flags $flags] [list $re]]
+ set run "list \[catch \{$cmd\}\] \[lindex \$errorCode 1\]"
+ test $prefix.[tno $testid] [desc $testid] {testregexp} $run [list 1 REG_$err]
+}
+
+# match failure expected
+proc f {testid flags re target args} {
+ global prefix description ask
+
+ # if &, test as both ARE and BRE
+ set amp [string first "&" $flags]
+ if {$amp >= 0} {
+ set f [string range $flags 0 [expr $amp - 1]]
+ append f [string range $flags [expr $amp + 1] end]
+ eval [linsert $args 0 f [linsert $testid end ARE] ${f} $re \
+ $target]
+ eval [linsert $args 0 f [linsert $testid end BRE] ${f}b $re \
+ $target]
+ return
+ }
+
+ set f [flags $flags]
+ set infoflags [infoflags $flags]
+ set ccmd [concat [list testregexp -$ask] $f [list $re]]
+ set nsub [expr [llength $args] - 1]
+ if {$nsub == -1} {
+ # didn't tell us number of subexps
+ set ccmd "lreplace \[$ccmd\] 0 0"
+ set info [list $infoflags]
+ } else {
+ set info [list $nsub $infoflags]
+ }
+ lappend testid "compile"
+ test $prefix.[tno $testid] [desc $testid] {testregexp} $ccmd $info
+
+ set testid [lreplace $testid end end "execute"]
+ set ecmd [concat [list testregexp] $f [list $re $target]]
+ test $prefix.[tno $testid] [desc $testid] {testregexp} $ecmd 0
+}
+
+# match expected, internal routine that does the work
+# parameters like the "real" routines except they don't have "opts",
+# which is a possibly-empty list of switches for the regexp match attempt
+proc matchexpected {opts testid flags re target args} {
+ global prefix description ask
+
+ # if &, test as both BRE and ARE
+ set amp [string first "&" $flags]
+ if {$amp >= 0} {
+ set f [string range $flags 0 [expr $amp - 1]]
+ append f [string range $flags [expr $amp + 1] end]
+ eval [concat [list matchexpected $opts \
+ [linsert $testid end ARE] ${f} $re $target] $args]
+ eval [concat [list matchexpected $opts \
+ [linsert $testid end BRE] ${f}b $re $target] $args]
+ return
+ }
+
+ set f [flags $flags]
+ set infoflags [infoflags $flags]
+ set ccmd [concat [list testregexp -$ask] $f [list $re]]
+ set ecmd [concat [list testregexp] $opts $f [list $re $target]]
+
+ set nsub [expr [llength $args] - 1]
+ set names [list]
+ set refs ""
+ for {set i 0} {$i <= $nsub} {incr i} {
+ if {$i == 0} {
+ set name match
+ } else {
+ set name sub$i
+ }
+ lappend names $name
+ append refs " \$$name"
+ set $name ""
+ }
+ if {[string first "o" $flags] >= 0} { ;# REG_NOSUB
+ set nsub 0 ;# unsigned value cannot be -1
+ }
+ set ecmd [concat $ecmd $names]
+ set erun "list \[$ecmd\] $refs"
+ set result [concat [list 1] $args]
+
+ set info [list $nsub $infoflags]
+ lappend testid "compile"
+ test $prefix.[tno $testid] [desc $testid] {testregexp} $ccmd $info
+ set testid [lreplace $testid end end "execute"]
+ test $prefix.[tno $testid] [desc $testid] {testregexp} $erun $result
+}
+
+# match expected (no missing, empty, or ambiguous submatches)
+# m testno flags re target mat submat ...
+proc m {args} {
+ eval matchexpected [linsert $args 0 [list]]
+}
+
+# match expected (full fanciness)
+# i testno flags re target mat submat ...
+proc i {args} {
+ eval matchexpected [linsert $args 0 [list "-indices"]]
+}
+
+# test temporarily unimplemented
+proc xx {args} {
+ global testbypassed
+
+ incr testbypassed
+}
+
+
+
+# the tests themselves
+
+
+
+# support functions and preliminary misc.
+# This is sensitive to changes in message wording, but we really have to
+# test the code->message expansion at least once.
+test regexp-0.1 "regexp error reporting" {
+ list [catch {regexp (*) ign} msg] $msg
+} {1 {couldn't compile regular expression pattern: quantifier operand invalid}}
+
+
+
+doing 1 "basic sanity checks"
+m 1 & abc abc abc
+f 2 & abc def
+m 3 & abc xyabxabce abc
+
+
+
+doing 2 "invalid option combinations"
+e 1 qe a INVARG
+e 2 qa a INVARG
+e 3 qx a INVARG
+e 4 qn a INVARG
+e 5 ba a INVARG
+
+
+
+doing 3 "basic syntax"
+i 1 &NS "" a {0 -1}
+m 2 NS a| a a
+m 3 - a|b a a
+m 4 - a|b b b
+m 5 NS a||b b b
+m 6 & ab ab ab
+
+
+
+doing 4 "parentheses"
+m 1 - (a)e ae ae a
+m 2 o (a)e ae
+m 3 b {\(a\)b} ab ab a
+m 4 - a((b)c) abc abc bc b
+m 5 - a(b)(c) abc abc b c
+e 6 - a(b EPAREN
+e 7 b {a\(b} EPAREN
+# sigh, we blew it on the specs here... someday this will be fixed in POSIX,
+# but meanwhile, it's fixed in AREs
+m 8 eU a)b a)b a)b
+e 9 - a)b EPAREN
+e 10 b {a\)b} EPAREN
+m 11 P a(?:b)c abc abc
+e 12 e a(?:b)c BADRPT
+i 13 S a()b ab {0 1} {1 0}
+m 14 SP a(?:)b ab ab
+i 15 S a(|b)c ac {0 1} {1 0}
+m 16 S a(b|)c abc abc b
+
+
+
+doing 5 "simple one-char matching"
+# general case of brackets done later
+m 1 & a.b axb axb
+f 2 &n "a.b" "a\nb"
+m 3 & {a[bc]d} abd abd
+m 4 & {a[bc]d} acd acd
+f 5 & {a[bc]d} aed
+f 6 & {a[^bc]d} abd
+m 7 & {a[^bc]d} aed aed
+f 8 &p "a\[^bc]d" "a\nd"
+
+
+
+doing 6 "context-dependent syntax"
+# plus odds and ends
+e 1 - * BADRPT
+m 2 b * * *
+m 3 b {\(*\)} * * *
+e 4 - (*) BADRPT
+m 5 b ^* * *
+e 6 - ^* BADRPT
+f 7 & ^b ^b
+m 8 b x^ x^ x^
+f 9 I x^ x
+m 10 n "\n^" "x\nb" "\n"
+f 11 bS {\(^b\)} ^b
+m 12 - (^b) b b b
+m 13 & {x$} x x
+m 14 bS {\(x$\)} x x x
+m 15 - {(x$)} x x x
+m 16 b {x$y} "x\$y" "x\$y"
+f 17 I {x$y} xy
+m 18 n "x\$\n" "x\n" "x\n"
+e 19 - + BADRPT
+e 20 - ? BADRPT
+
+
+
+doing 7 "simple quantifiers"
+m 1 &N a* aa aa
+i 2 &N a* b {0 -1}
+m 3 - a+ aa aa
+m 4 - a?b ab ab
+m 5 - a?b b b
+e 6 - ** BADRPT
+m 7 bN ** *** ***
+e 8 & a** BADRPT
+e 9 & a**b BADRPT
+e 10 & *** BADRPT
+e 11 * a++ BADRPT
+e 12 * a?+ BADRPT
+e 13 * a?* BADRPT
+e 14 * a+* BADRPT
+e 15 * a*+ BADRPT
+
+
+
+doing 8 "braces"
+m 1 NQ "a{0,1}" "" ""
+m 2 NQ "a{0,1}" ac a
+e 3 - "a{1,0}" BADBR
+e 4 - "a{1,2,3}" BADBR
+e 5 - "a{257}" BADBR
+e 6 - "a{1000}" BADBR
+e 7 - "a{1" EBRACE
+e 8 - "a{1n}" BADBR
+m 9 BS "a{b" "a\{b" "a\{b"
+m 10 BS "a{" "a\{" "a\{"
+m 11 bQ {a\{0,1\}b} cb b
+e 12 b {a\{0,1} EBRACE
+e 13 - "a{0,1\\" BADBR
+m 14 Q "a{0}b" ab b
+m 15 Q "a{0,0}b" ab b
+m 16 Q "a{0,1}b" ab ab
+m 17 Q "a{0,2}b" b b
+m 18 Q "a{0,2}b" aab aab
+m 19 Q "a{0,}b" aab aab
+m 20 Q "a{1,1}b" aab ab
+m 21 Q "a{1,3}b" aaaab aaab
+f 22 Q "a{1,3}b" b
+m 23 Q "a{1,}b" aab aab
+f 24 Q "a{2,3}b" ab
+m 25 Q "a{2,3}b" aaaab aaab
+f 26 Q "a{2,}b" ab
+m 27 Q "a{2,}b" aaaab aaaab
+
+
+
+doing 9 "brackets"
+m 1 & {a[bc]} ac ac
+m 2 & {a[-]} a- a-
+m 3 & {a[[.-.]]} a- a-
+m 4 &L {a[[.zero.]]} a0 a0
+m 5 &LM {a[[.zero.]-9]} a2 a2
+m 6 &M {a[0-[.9.]]} a2 a2
+m 7 &+L {a[[=x=]]} ax ax
+m 8 &+L {a[[=x=]]} ay ay
+f 9 &+L {a[[=x=]]} az
+e 10 & {a[0-[=x=]]} ERANGE
+m 11 &L {a[[:digit:]]} a0 a0
+e 12 & {a[[:woopsie:]]} ECTYPE
+f 13 &L {a[[:digit:]]} ab
+e 14 & {a[0-[:digit:]]} ERANGE
+m 15 &LP {[[:<:]]a} a a
+m 16 &LP {a[[:>:]]} a a
+e 17 & {a[[..]]b} ECOLLATE
+e 18 & {a[[==]]b} ECOLLATE
+e 19 & {a[[::]]b} ECTYPE
+e 20 & {a[[.a} EBRACK
+e 21 & {a[[=a} EBRACK
+e 22 & {a[[:a} EBRACK
+e 23 & {a[} EBRACK
+e 24 & {a[b} EBRACK
+e 25 & {a[b-} EBRACK
+e 26 & {a[b-c} EBRACK
+m 27 &M {a[b-c]} ab ab
+m 28 & {a[b-b]} ab ab
+m 29 &M {a[1-2]} a2 a2
+e 30 & {a[c-b]} ERANGE
+e 31 & {a[a-b-c]} ERANGE
+m 32 &M {a[--?]b} a?b a?b
+m 33 & {a[---]b} a-b a-b
+m 34 & {a[]b]c} a]c a]c
+m 35 EP {a[\]]b} a]b a]b
+f 36 bE {a[\]]b} a]b
+m 37 bE {a[\]]b} "a\\]b" "a\\]b"
+m 38 eE {a[\]]b} "a\\]b" "a\\]b"
+m 39 EP {a[\\]b} "a\\b" "a\\b"
+m 40 eE {a[\\]b} "a\\b" "a\\b"
+m 41 bE {a[\\]b} "a\\b" "a\\b"
+e 42 - {a[\Z]b} EESCAPE
+m 43 & {a[[b]c} "a\[c" "a\[c"
+m 44 EMP {a[\u00fe-\u0507][\u00ff-\u0300]b} \
+ "a\u0102\u02ffb" "a\u0102\u02ffb"
+
+
+
+doing 10 "anchors and newlines"
+m 1 & ^a a a
+f 2 &^ ^a a
+i 3 &N ^ a {0 -1}
+i 4 & {a$} aba {2 2}
+f 5 {&$} {a$} a
+i 6 &N {$} ab {2 1}
+m 7 &n ^a a a
+m 8 &n "^a" "b\na" "a"
+i 9 &w "^a" "a\na" {0 0}
+i 10 &n^ "^a" "a\na" {2 2}
+m 11 &n {a$} a a
+m 12 &n "a\$" "a\nb" "a"
+i 13 &n "a\$" "a\na" {0 0}
+i 14 N ^^ a {0 -1}
+m 15 b ^^ ^ ^
+i 16 N {$$} a {1 0}
+m 17 b {$$} "\$" "\$"
+m 18 &N {^$} "" ""
+f 19 &N {^$} a
+i 20 &nN "^\$" "a\n\nb" {2 1}
+m 21 N {$^} "" ""
+m 22 b {$^} "\$^" "\$^"
+m 23 P {\Aa} a a
+m 24 ^P {\Aa} a a
+f 25 ^nP {\Aa} "b\na"
+m 26 P {a\Z} a a
+m 27 {$P} {a\Z} a a
+f 28 {$nP} {a\Z} "a\nb"
+e 29 - ^* BADRPT
+e 30 - {$*} BADRPT
+e 31 - {\A*} BADRPT
+e 32 - {\Z*} BADRPT
+
+
+
+doing 11 "boundary constraints"
+m 1 &LP {[[:<:]]a} a a
+m 2 &LP {[[:<:]]a} -a a
+f 3 &LP {[[:<:]]a} ba
+m 4 &LP {a[[:>:]]} a a
+m 5 &LP {a[[:>:]]} a- a
+f 6 &LP {a[[:>:]]} ab
+m 7 bLP {\<a} a a
+f 8 bLP {\<a} ba
+m 9 bLP {a\>} a a
+f 10 bLP {a\>} ab
+m 11 LP {\ya} a a
+f 12 LP {\ya} ba
+m 13 LP {a\y} a a
+f 14 LP {a\y} ab
+m 15 LP {a\Y} ab a
+f 16 LP {a\Y} a-
+f 17 LP {a\Y} a
+f 18 LP {-\Y} -a
+m 19 LP {-\Y} -% -
+f 20 LP {\Y-} a-
+e 21 - {[[:<:]]*} BADRPT
+e 22 - {[[:>:]]*} BADRPT
+e 23 b {\<*} BADRPT
+e 24 b {\>*} BADRPT
+e 25 - {\y*} BADRPT
+e 26 - {\Y*} BADRPT
+m 27 LP {\ma} a a
+f 28 LP {\ma} ba
+m 29 LP {a\M} a a
+f 30 LP {a\M} ab
+f 31 ILP {\Ma} a
+f 32 ILP {a\m} a
+
+
+
+doing 12 "character classes"
+m 1 LP {a\db} a0b a0b
+f 2 LP {a\db} axb
+f 3 LP {a\Db} a0b
+m 4 LP {a\Db} axb axb
+m 5 LP "a\\sb" "a b" "a b"
+m 6 LP "a\\sb" "a\tb" "a\tb"
+m 7 LP "a\\sb" "a\nb" "a\nb"
+f 8 LP {a\sb} axb
+m 9 LP {a\Sb} axb axb
+f 10 LP "a\\Sb" "a b"
+m 11 LP {a\wb} axb axb
+f 12 LP {a\wb} a-b
+f 13 LP {a\Wb} axb
+m 14 LP {a\Wb} a-b a-b
+m 15 LP {\y\w+z\y} adze-guz guz
+m 16 LPE {a[\d]b} a1b a1b
+m 17 LPE "a\[\\s]b" "a b" "a b"
+m 18 LPE {a[\w]b} axb axb
+
+
+
+doing 13 "escapes"
+e 1 & "a\\" EESCAPE
+m 2 - {a\<b} a<b a<b
+m 3 e {a\<b} a<b a<b
+m 4 bAS {a\wb} awb awb
+m 5 eAS {a\wb} awb awb
+m 6 PL "a\\ab" "a\007b" "a\007b"
+m 7 P "a\\bb" "a\bb" "a\bb"
+m 8 P {a\Bb} "a\\b" "a\\b"
+m 9 MP "a\\chb" "a\bb" "a\bb"
+m 10 MP "a\\cHb" "a\bb" "a\bb"
+m 11 LMP "a\\e" "a\033" "a\033"
+m 12 P "a\\fb" "a\fb" "a\fb"
+m 13 P "a\\nb" "a\nb" "a\nb"
+m 14 P "a\\rb" "a\rb" "a\rb"
+m 15 P "a\\tb" "a\tb" "a\tb"
+m 16 P "a\\u0008x" "a\bx" "a\bx"
+e 17 - {a\u008x} EESCAPE
+m 18 P "a\\u00088x" "a\b8x" "a\b8x"
+m 19 P "a\\U00000008x" "a\bx" "a\bx"
+e 20 - {a\U0000008x} EESCAPE
+m 21 P "a\\vb" "a\vb" "a\vb"
+m 22 MP "a\\x08x" "a\bx" "a\bx"
+e 23 - {a\xq} EESCAPE
+m 24 MP "a\\x0008x" "a\bx" "a\bx"
+e 25 - {a\z} EESCAPE
+m 26 MP "a\\010b" "a\bb" "a\bb"
+
+
+
+doing 14 "back references"
+# ugh
+m 1 {R[1P} {a(b*)c\1} abbcbb abbcbb bb
+m 2 {R[1P} {a(b*)c\1} ac ac ""
+f 3 {R[1P} {a(b*)c\1} abbcb
+m 4 {R[1P} {a(b*)\1} abbcbb abb b
+m 5 {R[1P} {a(b|bb)\1} abbcbb abb b
+m 6 {R[1P} {a([bc])\1} abb abb b
+f 7 {R[1P} {a([bc])\1} abc
+m 8 {R[1P} {a([bc])\1} abcabb abb b
+f 9 {R[1P} {a([bc])*\1} abc
+f 10 {R[1P} {a([bc])\1} abB
+m 11 {iR[1P} {a([bc])\1} abB abB b
+m 12 {R[1P} {a([bc])\1+} abbb abbb b
+m 13 {QR[1P} "a(\[bc])\\1{3,4}" abbbb abbbb b
+f 14 {QR[1P} "a(\[bc])\\1{3,4}" abbb
+m 15 {R[1P} {a([bc])\1*} abbb abbb b
+m 16 {R[1P} {a([bc])\1*} ab ab b
+m 17 {R[2P} {a([bc])(\1*)} ab ab b ""
+e 18 - {a((b)\1)} ESUBREG
+e 19 - {a(b)c\2} ESUBREG
+m 20 {bR[1} {a\(b*\)c\1} abbcbb abbcbb bb
+
+
+
+doing 15 "octal escapes vs back references"
+# initial zero is always octal
+m 1 MP "a\\010b" "a\bb" "a\bb"
+m 2 MP "a\\0070b" "a\0070b" "a\0070b"
+m 3 MP "a\\07b" "a\007b" "a\007b"
+m 4 MP "a(b)(b)(b)(b)(b)(b)(b)(b)(b)(b)\\07c" "abbbbbbbbbb\007c" \
+ "abbbbbbbbbb\007c" "b" "b" "b" "b" "b" "b" \
+ "b" "b" "b" "b"
+# a single digit is always a backref
+e 5 - {a\7b} ESUBREG
+# otherwise it's a backref only if within range (barf!)
+m 6 MP "a\\10b" "a\bb" "a\bb"
+m 7 MP {a\101b} aAb aAb
+m 8 RP {a(b)(b)(b)(b)(b)(b)(b)(b)(b)(b)\10c} abbbbbbbbbbbc \
+ abbbbbbbbbbbc b b b b b b b \
+ b b b
+# but we're fussy about border cases -- guys who want octal should use the zero
+e 9 - {a((((((((((b\10))))))))))c} ESUBREG
+# BREs don't have octal, EREs don't have backrefs
+m 10 MP "a\\12b" "a\nb" "a\nb"
+e 11 b {a\12b} ESUBREG
+m 12 eAS {a\12b} a12b a12b
+
+
+
+doing 16 "expanded syntax"
+m 1 xP "a b c" "abc" "abc"
+m 2 xP "a b #oops\nc\td" "abcd" "abcd"
+m 3 x "a\\ b\\\tc" "a b\tc" "a b\tc"
+m 4 xP "a b\\#c" "ab#c" "ab#c"
+m 5 xP "a b\[c d]e" "ab e" "ab e"
+m 6 xP "a b\[c#d]e" "ab#e" "ab#e"
+m 7 xP "a b\[c#d]e" "abde" "abde"
+m 8 xSPB "ab{ d" "ab\{d" "ab\{d"
+m 9 xPQ "ab{ 1 , 2 }c" "abc" "abc"
+
+
+
+doing 17 "misc syntax"
+m 1 P a(?#comment)b ab ab
+
+
+
+doing 18 "unmatchable REs"
+f 1 I a^b ab
+
+
+
+doing 19 "case independence"
+m 1 &i ab Ab Ab
+m 2 &i {a[bc]} aC aC
+f 3 &i {a[^bc]} aB
+m 4 &iM {a[b-d]} aC aC
+f 5 &iM {a[^b-d]} aC
+
+
+
+doing 20 "directors and embedded options"
+e 1 & ***? BADPAT
+m 2 q ***? ***? ***?
+m 3 &P ***=a*b a*b a*b
+m 4 q ***=a*b ***=a*b ***=a*b
+m 5 bLP {***:\w+} ab ab
+m 6 eLP {***:\w+} ab ab
+e 7 & ***:***=a*b BADRPT
+m 8 &P ***:(?b)a+b a+b a+b
+m 9 P (?b)a+b a+b a+b
+e 10 e {(?b)\w+} BADRPT
+m 11 bAS {(?b)\w+} (?b)w+ (?b)w+
+m 12 iP (?c)a a a
+f 13 iP (?c)a A
+m 14 APS {(?e)\W+} WW WW
+m 15 P (?i)a+ Aa Aa
+f 16 P "(?m)a.b" "a\nb"
+m 17 P "(?m)^b" "a\nb" "b"
+f 18 P "(?n)a.b" "a\nb"
+m 19 P "(?n)^b" "a\nb" "b"
+f 20 P "(?p)a.b" "a\nb"
+f 21 P "(?p)^b" "a\nb"
+m 22 P (?q)a+b a+b a+b
+m 23 nP "(?s)a.b" "a\nb" "a\nb"
+m 24 xP "(?t)a b" "a b" "a b"
+m 25 P "(?w)a.b" "a\nb" "a\nb"
+m 26 P "(?w)^b" "a\nb" "b"
+m 27 P "(?x)a b" "ab" "ab"
+e 28 - (?z)ab BADOPT
+m 29 P (?ici)a+ Aa Aa
+e 30 P (?i)(?q)a+ BADRPT
+m 31 P (?q)(?i)a+ (?i)a+ (?i)a+
+m 32 P (?qe)a+ a a
+m 33 xP "(?q)a b" "a b" "a b"
+m 34 P "(?qx)a b" "a b" "a b"
+m 35 P (?qi)ab Ab Ab
+
+
+
+doing 21 "capturing"
+m 1 - a(b)c abc abc b
+m 2 P a(?:b)c xabc abc
+m 3 - a((b))c xabcy abc b b
+m 4 P a(?:(b))c abcy abc b
+m 5 P a((?:b))c abc abc b
+m 6 P a(?:(?:b))c abc abc
+i 7 Q "a(b){0}c" ac {0 1} {-1 -1}
+m 8 - a(b)c(d)e abcde abcde b d
+m 9 - (b)c(d)e bcde bcde b d
+m 10 - a(b)(d)e abde abde b d
+m 11 - a(b)c(d) abcd abcd b d
+m 12 - (ab)(cd) xabcdy abcd ab cd
+m 13 - a(b)?c xabcy abc b
+i 14 - a(b)?c xacy {1 2} {-1 -1}
+m 15 - a(b)?c(d)?e xabcdey abcde b d
+i 16 - a(b)?c(d)?e xacdey {1 4} {-1 -1} {3 3}
+i 17 - a(b)?c(d)?e xabcey {1 4} {2 2} {-1 -1}
+i 18 - a(b)?c(d)?e xacey {1 3} {-1 -1} {-1 -1}
+m 19 - a(b)*c xabcy abc b
+i 20 - a(b)*c xabbbcy {1 5} {4 4}
+i 21 - a(b)*c xacy {1 2} {-1 -1}
+m 22 - a(b*)c xabbbcy abbbc bbb
+m 23 - a(b*)c xacy ac ""
+f 24 - a(b)+c xacy
+m 25 - a(b)+c xabcy abc b
+i 26 - a(b)+c xabbbcy {1 5} {4 4}
+m 27 - a(b+)c xabbbcy abbbc bbb
+i 28 Q "a(b){2,3}c" xabbbcy {1 5} {4 4}
+i 29 Q "a(b){2,3}c" xabbcy {1 4} {3 3}
+f 30 Q "a(b){2,3}c" xabcy
+m 31 LP "\\y(\\w+)\\y" "-- abc-" "abc" "abc"
+m 32 - a((b|c)d+)+ abacdbd acdbd bd b
+m 33 N (.*).* abc abc abc
+m 34 N (a*)* bc "" ""
+
+
+
+doing 22 "multicharacter collating elements"
+# again ugh
+# currently disabled because the fake MCCE we use for testing is unavailable
+xx m 1 &+L {a[c]e} ace ace
+xx f 2 &+I {a[c]h} ach
+xx m 3 &+L {a[[.ch.]]} ach ach
+xx f 4 &+L {a[[.ch.]]} ace
+xx m 5 &+L {a[c[.ch.]]} ac ac
+xx m 6 &+L {a[c[.ch.]]} ace ac
+xx m 7 &+L {a[c[.ch.]]} ache ach
+xx f 8 &+L {a[^c]e} ace
+xx m 9 &+L {a[^c]e} abe abe
+xx m 10 &+L {a[^c]e} ache ache
+xx f 11 &+L {a[^[.ch.]]} ach
+xx m 12 &+L {a[^[.ch.]]} ace ac
+xx m 13 &+L {a[^[.ch.]]} ac ac
+xx m 14 &+L {a[^[.ch.]]} abe ab
+xx f 15 &+L {a[^c[.ch.]]} ach
+xx f 16 &+L {a[^c[.ch.]]} ace
+xx f 17 &+L {a[^c[.ch.]]} ac
+xx m 18 &+L {a[^c[.ch.]]} abe ab
+xx m 19 &+L {a[^b]} ac ac
+xx m 20 &+L {a[^b]} ace ac
+xx m 21 &+L {a[^b]} ach ach
+xx f 22 &+L {a[^b]} abe
+
+
+
+doing 23 "lookahead constraints"
+m 1 HP a(?=b)b* ab ab
+f 2 HP a(?=b)b* a
+m 3 HP a(?=b)b*(?=c)c* abc abc
+f 4 HP a(?=b)b*(?=c)c* ab
+f 5 HP a(?!b)b* ab
+m 6 HP a(?!b)b* a a
+m 7 HP (?=b)b b b
+f 8 HP (?=b)b a
+
+
+
+doing 24 "non-greedy quantifiers"
+m 1 P ab+? abb ab
+m 2 P ab+?c abbc abbc
+m 3 P ab*? abb a
+m 4 P ab*?c abbc abbc
+m 5 P ab?? ab a
+m 6 P ab??c abc abc
+m 7 PQ "ab{2,4}?" abbbb abb
+m 8 PQ "ab{2,4}?c" abbbbc abbbbc
+
+
+
+doing 25 "mixed quantifiers"
+xx to be done, actually
+xx should include |
+
+
+
+doing 26 "tricky cases"
+# attempts to trick the matcher into accepting a short match
+m 1 - (week|wee)(night|knights) weeknights weeknights \
+ wee knights
+m 2 RP {a(bc*).*\1} abccbccb abccbccb b
+m 3 - {a(b.[bc]*)+} abcbd abcbd bd
+
+
+
+doing 27 "implementation misc."
+# duplicate arcs are suppressed
+m 1 P a(?:b|b)c abc abc
+# make color/subcolor relationship go back and forth
+m 2 & {[ab][ab][ab]} aba aba
+m 3 & {[ab][ab][ab][ab][ab][ab][ab]} abababa abababa
+
+
+
+doing 28 "boundary busters etc."
+# color-descriptor allocation changes at 10
+m 1 & abcdefghijkl abcdefghijkl abcdefghijkl
+# so does arc allocation
+m 2 P a(?:b|c|d|e|f|g|h|i|j|k|l|m)n agn agn
+# subexpression tracking also at 10
+m 3 - a(((((((((((((b)))))))))))))c abc abc b b b b b b b b b b b b b
+# state-set handling changes slightly at unsigned size (might be 64...)
+# (also stresses arc allocation)
+m 4 Q "ab{1,100}c" abbc abbc
+m 5 Q "ab{1,100}c" abbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbc \
+ abbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbc
+m 6 Q "ab{1,100}c" \
+ abbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbc \
+ abbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbc
+# force small cache and bust it, several ways
+m 7 LP {\w+abcdefgh} xyzabcdefgh xyzabcdefgh
+m 8 %LP {\w+abcdefgh} xyzabcdefgh xyzabcdefgh
+m 9 %LP {\w+abcdefghijklmnopqrst} xyzabcdefghijklmnopqrst \
+ xyzabcdefghijklmnopqrst
+i 10 %LP {\w+(abcdefgh)?} xyz {0 2} {-1 -1}
+i 11 %LP {\w+(abcdefgh)?} xyzabcdefg {0 9} {-1 -1}
+i 12 %LP {\w+(abcdefghijklmnopqrst)?} xyzabcdefghijklmnopqrs \
+ {0 21} {-1 -1}
+
+
+
+doing 29 "misc. oddities and old bugs"
+e 1 & *** BADRPT
+m 2 N a?b* abb abb
+m 3 N a?b* bb bb
+m 4 & a*b aab aab
+m 5 & ^a*b aaaab aaaab
+m 6 &M {[0-6][1-2][0-3][0-6][1-6][0-6]} 010010 010010
+
+
+
+doing 0 "flush" ;# to flush any leftover complaints
+
+# cleanup
+::tcltest::cleanupTests
+return
+
+