# This file contains a collection of tests for tclUtf.c
# Sourcing this file into Tcl runs the tests and generates output for
# errors.  No output means no errors were found.
#
# Copyright © 1997 Sun Microsystems, Inc.
# Copyright © 1998-1999 Scriptics Corporation.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.

if {"::tcltest" ni [namespace children]} {
    package require tcltest 2.5
    namespace import -force ::tcltest::*
}

::tcltest::loadTestedCommands
catch [list package require -exact tcl::test [info patchlevel]]

testConstraint ucs2 [expr {[format %c 0x010000] eq "\uFFFD"}]
testConstraint fullutf [expr {[format %c 0x010000] ne "\uFFFD"}]
testConstraint utf16 [expr {[string length [format %c 0x10000]] == 2}]
testConstraint ucs4 [expr {[testConstraint fullutf]
		&& [string length [format %c 0x10000]] == 1}]
testConstraint ucs2_utf16 [expr {![testConstraint ucs4]}]

testConstraint Uesc [expr {"\U0041" eq "A"}]
testConstraint pre388 [expr {"\x741" eq "A"}]
testConstraint pairsTo4bytes [expr {[llength [info commands teststringbytes]]
		&& [string length [teststringbytes \uD83D\uDCA9]] == 4}]

testConstraint testbytestring [llength [info commands testbytestring]]
testConstraint testfindfirst [llength [info commands testfindfirst]]
testConstraint testfindlast [llength [info commands testfindlast]]
testConstraint testnumutfchars [llength [info commands testnumutfchars]]
testConstraint teststringobj [llength [info commands teststringobj]]
testConstraint testutfnext [llength [info commands testutfnext]]
testConstraint testutfprev [llength [info commands testutfprev]]

testConstraint tip413 [expr {[string trim \x00] eq {}}]

catch {unset x}

test utf-1.1 {Tcl_UniCharToUtf: 1 byte sequences} testbytestring {
    expr {"\x01" eq [testbytestring \x01]}
} 1
test utf-1.2 {Tcl_UniCharToUtf: 2 byte sequences} testbytestring {
    expr {"\x00" eq [testbytestring \xC0\x80]}
} 1
test utf-1.3 {Tcl_UniCharToUtf: 2 byte sequences} testbytestring {
    expr {"\xE0" eq [testbytestring \xC3\xA0]}
} 1
test utf-1.4 {Tcl_UniCharToUtf: 3 byte sequences} testbytestring {
    expr {"\u4E4E" eq [testbytestring \xE4\xB9\x8E]}
} 1
test utf-1.5 {Tcl_UniCharToUtf: overflowed Tcl_UniChar} testbytestring {
    expr {[format %c 0x110000] eq [testbytestring \xEF\xBF\xBD]}
} 1
test utf-1.6 {Tcl_UniCharToUtf: negative Tcl_UniChar} testbytestring {
    expr {[format %c -1] eq [testbytestring \xEF\xBF\xBD]}
} 1
test utf-1.7.0 {Tcl_UniCharToUtf: 4 byte sequences} {fullutf Uesc testbytestring} {
    expr {"\U014E4E" eq [testbytestring \xF0\x94\xB9\x8E]}
} 1
test utf-1.7.1 {Tcl_UniCharToUtf: 4 byte sequences} {ucs2 Uesc testbytestring} {
    expr {"\U014E4E" eq [testbytestring \xF0\x94\xB9\x8E]}
} 0
test utf-1.8 {Tcl_UniCharToUtf: 3 byte sequence, high surrogate} testbytestring {
    expr {"\uD842" eq [testbytestring \xED\xA1\x82]}
} 1
test utf-1.9 {Tcl_UniCharToUtf: 3 byte sequence, low surrogate} testbytestring {
    expr {"\uDC42" eq [testbytestring \xED\xB1\x82]}
} 1
test utf-1.10 {Tcl_UniCharToUtf: 3 byte sequence, high surrogate} testbytestring {
    expr {[format %c 0xD842] eq [testbytestring \xED\xA1\x82]}
} 1
test utf-1.11 {Tcl_UniCharToUtf: 3 byte sequence, low surrogate} testbytestring {
    expr {[format %c 0xDC42] eq [testbytestring \xED\xB1\x82]}
} 1
test utf-1.12 {Tcl_UniCharToUtf: 4 byte sequence, high/low surrogate} {pairsTo4bytes testbytestring} {
    expr {"\uD842\uDC42" eq [testbytestring \xF0\xA0\xA1\x82]}
} 1
test utf-1.13 {Tcl_UniCharToUtf: Invalid surrogate} {Uesc testbytestring} {
    expr {"\UD842" eq [testbytestring \xEF\xBF\xBD]}
} 1

test utf-2.1 {Tcl_UtfToUniChar: low ascii} {
    string length "abc"
} 3
test utf-2.2 {Tcl_UtfToUniChar: naked trail bytes} testbytestring {
    string length [testbytestring \x82\x83\x84]
} 3
test utf-2.3 {Tcl_UtfToUniChar: lead (2-byte) followed by non-trail} testbytestring {
    string length [testbytestring \xC2]
} 1
test utf-2.4 {Tcl_UtfToUniChar: lead (2-byte) followed by trail} {
    string length \xA2
} 1
test utf-2.5 {Tcl_UtfToUniChar: lead (3-byte) followed by non-trail} testbytestring {
    string length [testbytestring \xE2]
} 1
test utf-2.6 {Tcl_UtfToUniChar: lead (3-byte) followed by 1 trail} testbytestring {
    string length [testbytestring \xE2\xA2]
} 2
test utf-2.7 {Tcl_UtfToUniChar: lead (3-byte) followed by 2 trail} testbytestring {
    string length [testbytestring \xE4\xB9\x8E]
} 1
test utf-2.8.0 {Tcl_UtfToUniChar: lead (4-byte) followed by 3 trail} {testbytestring ucs2_utf16} {
    string length [testbytestring \xF0\x90\x80\x80]
} 2
test utf-2.8.1 {Tcl_UtfToUniChar: lead (4-byte) followed by 3 trail} {testbytestring ucs4} {
    string length [testbytestring \xF0\x90\x80\x80]
} 1
test utf-2.9.0 {Tcl_UtfToUniChar: lead (4-byte) followed by 3 trail} {testbytestring ucs2} {
    string length [testbytestring \xF4\x8F\xBF\xBF]
} 2
test utf-2.9.1 {Tcl_UtfToUniChar: lead (4-byte) followed by 3 trail} {Uesc ucs4} {
    string length \U10FFFF
} 1
test utf-2.10 {Tcl_UtfToUniChar: lead (4-byte) followed by 3 trail, underflow} testbytestring {
    string length [testbytestring \xF0\x8F\xBF\xBF]
} 4
test utf-2.11 {Tcl_UtfToUniChar: lead (4-byte) followed by 3 trail, overflow} testbytestring {
    # Would decode to U+110000 but that is outside the Unicode range.
    string length [testbytestring \xF4\x90\x80\x80]
} 4
test utf-2.12 {Tcl_UtfToUniChar: longer UTF sequences not supported} testbytestring {
    string length [testbytestring \xF8\xA2\xA2\xA2\xA2]
} 5

test utf-3.1 {Tcl_UtfCharComplete} {
} {}

test utf-4.1 {Tcl_NumUtfChars: zero length} testnumutfchars {
    testnumutfchars ""
} 0
test utf-4.2 {Tcl_NumUtfChars: length 1} testnumutfchars {
    testnumutfchars \xA2
} 1
test utf-4.3 {Tcl_NumUtfChars: long string} {testnumutfchars testbytestring} {
    testnumutfchars abc\xA2[testbytestring \xE4\xB9\x8E\xA2\x4E]
} 7
test utf-4.4 {Tcl_NumUtfChars: #x00} testnumutfchars {
    testnumutfchars \x00
} 1
test utf-4.5 {Tcl_NumUtfChars: zero length, calc len} testnumutfchars {
    testnumutfchars "" 0
} 0
test utf-4.6 {Tcl_NumUtfChars: length 1, calc len} {testnumutfchars testbytestring} {
    testnumutfchars \xA2 end
} 1
test utf-4.7 {Tcl_NumUtfChars: long string, calc len} {testnumutfchars testbytestring} {
    testnumutfchars abc\xA2[testbytestring \xE4\xB9\x8E\xA2\x4E] end
} 7
test utf-4.8 {Tcl_NumUtfChars: #x00, calc len} testnumutfchars {
    testnumutfchars \x00 end
} 1
# Bug [2738427]: Tcl_NumUtfChars(...) no overflow check
test utf-4.9 {Tcl_NumUtfChars: #u20AC, calc len, incomplete} {testnumutfchars testbytestring} {
    testnumutfchars [testbytestring \xE2\x82\xAC] end-1
} 2
test utf-4.10 {Tcl_NumUtfChars: #x00, calc len, overcomplete} {testnumutfchars testbytestring} {
    testnumutfchars [testbytestring \x00] end+1
} 2
test utf-4.11 {Tcl_NumUtfChars: 3 bytes of 4-byte UTF-8 characater} {testnumutfchars testbytestring} {
    testnumutfchars [testbytestring \xF0\x9F\x92\xA9] end-1
} 3
test utf-4.12.0 {Tcl_NumUtfChars: #4-byte UTF-8 character} {testnumutfchars testbytestring ucs2} {
    testnumutfchars [testbytestring \xF0\x9F\x92\xA9] end
} 2
test utf-4.12.1 {Tcl_NumUtfChars: #4-byte UTF-8 character} {testnumutfchars testbytestring ucs4} {
    testnumutfchars [testbytestring \xF0\x9F\x92\xA9] end
} 1
test utf-4.13 {Tcl_NumUtfChars: end of string} {testnumutfchars testbytestring} {
    testnumutfchars foobar[testbytestring \xF2\xC2\xA0] end
} 8
test utf-4.14 {Tcl_NumUtfChars: 3 bytes of 4-byte UTF-8 characater} {testnumutfchars testbytestring} {
    testnumutfchars [testbytestring \xF4\x90\x80\x80] end-1
} 3

test utf-5.1 {Tcl_UtfFindFirst} {testfindfirst testbytestring} {
    testfindfirst [testbytestring abcbc] 98
} bcbc
test utf-5.2 {Tcl_UtfFindLast} {testfindlast testbytestring} {
    testfindlast [testbytestring abcbc] 98
} bc

test utf-6.1 {Tcl_UtfNext} {testutfnext testbytestring} {
    # This takes the pointer one past the terminating NUL.
    # This is really an invalid call.
    testutfnext [testbytestring \x00]
} 1
test utf-6.2 {Tcl_UtfNext} testutfnext {
    testutfnext A
} 1
test utf-6.3 {Tcl_UtfNext} testutfnext {
    testutfnext AA
} 1
test utf-6.4 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext A[testbytestring \xA0]
} 1
test utf-6.5 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext A[testbytestring \xD0]
} 1
test utf-6.6 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext A[testbytestring \xE8]
} 1
test utf-6.7 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext A[testbytestring \xF2]
} 1
test utf-6.8 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext A[testbytestring \xF8]
} 1
test utf-6.9 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xA0\x00]
} 1
test utf-6.10 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xA0]G
} 1
test utf-6.11 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xA0\xA0\x00]
} 2
test utf-6.12 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xA0\xD0]
} 1
test utf-6.13 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xA0\xE8]
} 1
test utf-6.14 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xA0\xF2]
} 1
test utf-6.15 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xA0\xF8]
} 1
test utf-6.16 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xD0\x00]
} 1
test utf-6.17 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xD0]G
} 1
test utf-6.18 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xD0\xA0]
} 2
test utf-6.19 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xD0\xD0]
} 1
test utf-6.20 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xD0\xE8]
} 1
test utf-6.21 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xD0\xF2]
} 1
test utf-6.22 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xD0\xF8]
} 1
test utf-6.23 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xE8\x00]
} 1
test utf-6.24 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xE8]G
} 1
test utf-6.25 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xE8\xA0\x00]
} 1
test utf-6.26 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xE8\xD0]
} 1
test utf-6.27 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xE8\xE8]
} 1
test utf-6.28 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xE8\xF2]
} 1
test utf-6.29 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xE8\xF8]
} 1
test utf-6.30.0 {Tcl_UtfNext} {testutfnext testbytestring ucs2_utf16} {
    testutfnext [testbytestring \xF2]
} 1
test utf-6.30.1 {Tcl_UtfNext} {testutfnext testbytestring ucs4} {
    testutfnext [testbytestring \xF2\x00]
} 1
test utf-6.31 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF2]G
} 1
test utf-6.32.0 {Tcl_UtfNext} {testutfnext testbytestring ucs2_utf16} {
    testutfnext [testbytestring \xF2\xA0]
} 1
test utf-6.32.1 {Tcl_UtfNext} {testutfnext testbytestring ucs4} {
    testutfnext [testbytestring \xF2\xA0\x00]
} 1
test utf-6.33 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF2\xD0]
} 1
test utf-6.34 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF2\xE8]
} 1
test utf-6.35 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF2\xF2]
} 1
test utf-6.36 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF2\xF8]
} 1
test utf-6.37 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF8]
} 1
test utf-6.38 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF8]G
} 1
test utf-6.39 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF8\xA0]
} 1
test utf-6.40 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF8\xD0]
} 1
test utf-6.41 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF8\xE8]
} 1
test utf-6.42 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF8\xF2]
} 1
test utf-6.43 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF8\xF8]
} 1
test utf-6.44 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xD0\xA0]G
} 2
test utf-6.45 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xD0\xA0\xA0]
} 2
test utf-6.46 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xD0\xA0\xD0]
} 2
test utf-6.47 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xD0\xA0\xE8]
} 2
test utf-6.48 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xD0\xA0\xF2]
} 2
test utf-6.49 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xD0\xA0\xF8]
} 2
test utf-6.50 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xE8\xA0]G
} 1
test utf-6.51 {Tcl_UtfNext} testutfnext {
    testutfnext \u8820
} 3
test utf-6.52 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xE8\xA0\xD0]
} 1
test utf-6.53 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xE8\xA0\xE8]
} 1
test utf-6.54 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xE8\xA0\xF2]
} 1
test utf-6.55 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xE8\xA0\xF8]
} 1
test utf-6.56 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF2\xA0]G
} 1
test utf-6.57 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF2\xA0\xA0\x00]
} 1
test utf-6.58 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF2\xA0\xD0]
} 1
test utf-6.59 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF2\xA0\xE8]
} 1
test utf-6.60 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF2\xA0\xF2]
} 1
test utf-6.61 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF2\xA0\xF8]
} 1
test utf-6.62 {Tcl_UtfNext} testutfnext {
    testutfnext \u8820G
} 3
test utf-6.63 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext \u8820[testbytestring \xA0]
} 3
test utf-6.64 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext \u8820[testbytestring \xD0]
} 3
test utf-6.65 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext \u8820[testbytestring \xE8]
} 3
test utf-6.66 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext \u8820[testbytestring \xF2]
} 3
test utf-6.67 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext \u8820[testbytestring \xF8]
} 3
test utf-6.68 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF2\xA0\xA0]G
} 1
test utf-6.69.0 {Tcl_UtfNext} {testutfnext testbytestring ucs2_utf16} {
    testutfnext [testbytestring \xF2\xA0\xA0\xA0]
} 1
test utf-6.69.1 {Tcl_UtfNext} {testutfnext testbytestring ucs4} {
    testutfnext [testbytestring \xF2\xA0\xA0\xA0]
} 4
test utf-6.70 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF2\xA0\xA0\xD0]
} 1
test utf-6.71 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF2\xA0\xA0\xE8]
} 1
test utf-6.72 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF2\xA0\xA0\xF2]
} 1
test utf-6.73 {Tcl_UtfNext} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF2\xA0\xA0\xF8]
} 1
test utf-6.74.0 {Tcl_UtfNext} {testutfnext testbytestring ucs2_utf16} {
    testutfnext [testbytestring \xF2\xA0\xA0\xA0]G
} 1
test utf-6.74.1 {Tcl_UtfNext} {testutfnext testbytestring ucs4} {
    testutfnext [testbytestring \xF2\xA0\xA0\xA0]G
} 4
test utf-6.75.0 {Tcl_UtfNext} {testutfnext testbytestring ucs2_utf16} {
    testutfnext [testbytestring \xF2\xA0\xA0\xA0\xA0]
} 1
test utf-6.75.1 {Tcl_UtfNext} {testutfnext testbytestring ucs4} {
    testutfnext [testbytestring \xF2\xA0\xA0\xA0\xA0]
} 4
test utf-6.76.0 {Tcl_UtfNext} {testutfnext testbytestring ucs2_utf16} {
    testutfnext [testbytestring \xF2\xA0\xA0\xA0\xD0]
} 1
test utf-6.76.1 {Tcl_UtfNext} {testutfnext testbytestring ucs4} {
    testutfnext [testbytestring \xF2\xA0\xA0\xA0\xD0]
} 4
test utf-6.77.0 {Tcl_UtfNext} {testutfnext testbytestring ucs2_utf16} {
    testutfnext [testbytestring \xF2\xA0\xA0\xA0\xE8]
} 1
test utf-6.77.1 {Tcl_UtfNext} {testutfnext testbytestring ucs4} {
    testutfnext [testbytestring \xF2\xA0\xA0\xA0\xE8]
} 4
test utf-6.78.0 {Tcl_UtfNext} {testutfnext testbytestring ucs2_utf16} {
    testutfnext [testbytestring \xF2\xA0\xA0\xA0\xF2]
} 1
test utf-6.78.1 {Tcl_UtfNext} {testutfnext testbytestring ucs4} {
    testutfnext [testbytestring \xF2\xA0\xA0\xA0\xF2]
} 4
test utf-6.79.0 {Tcl_UtfNext} {testutfnext testbytestring ucs2_utf16} {
    testutfnext [testbytestring \xF2\xA0\xA0\xA0G\xF8]
} 1
test utf-6.79.1 {Tcl_UtfNext} {testutfnext testbytestring ucs4} {
    testutfnext [testbytestring \xF2\xA0\xA0\xA0G\xF8]
} 4
test utf-6.80 {Tcl_UtfNext - overlong sequences} testutfnext {
    testutfnext \x00
} 2
test utf-6.81 {Tcl_UtfNext - overlong sequences} {testutfnext testbytestring} {
    testutfnext [testbytestring \xC0\x81]
} 1
test utf-6.82 {Tcl_UtfNext - overlong sequences} {testutfnext testbytestring} {
    testutfnext [testbytestring \xC1\x80]
} 1
test utf-6.83 {Tcl_UtfNext - overlong sequences} {testutfnext testbytestring} {
    testutfnext [testbytestring \xC2\x80]
} 2
test utf-6.84 {Tcl_UtfNext - overlong sequences} {testutfnext testbytestring} {
    testutfnext [testbytestring \xE0\x80\x80]
} 1
test utf-6.85 {Tcl_UtfNext - overlong sequences} {testutfnext testbytestring} {
    testutfnext [testbytestring \xE0\xA0\x80]
} 3
test utf-6.86 {Tcl_UtfNext - overlong sequences} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF0\x80\x80\x80]
} 1
test utf-6.87.0 {Tcl_UtfNext - overlong sequences} {testutfnext testbytestring ucs2_utf16} {
    testutfnext [testbytestring \xF0\x90\x80\x80]
} 1
test utf-6.87.1 {Tcl_UtfNext - overlong sequences} {testutfnext testbytestring ucs4} {
    testutfnext [testbytestring \xF0\x90\x80\x80]
} 4
test utf-6.88 {Tcl_UtfNext, pointing to 2th byte of 3-byte valid sequence} {testutfnext testbytestring} {
    testutfnext [testbytestring \xA0\xA0\x00]
} 2
test utf-6.89 {Tcl_UtfNext, pointing to 2th byte of 3-byte invalid sequence} {testutfnext testbytestring} {
    testutfnext [testbytestring \x80\x80\x00]
} 2
test utf-6.90.0 {Tcl_UtfNext, validity check [493dccc2de]} {testutfnext testbytestring ucs2_utf16} {
    testutfnext [testbytestring \xF4\x8F\xBF\xBF]
} 1
test utf-6.90.1 {Tcl_UtfNext, validity check [493dccc2de]} {testutfnext testbytestring ucs4} {
    testutfnext [testbytestring \xF4\x8F\xBF\xBF]
} 4
test utf-6.91 {Tcl_UtfNext, validity check [493dccc2de]} {testutfnext testbytestring} {
    testutfnext [testbytestring \xF4\x90\x80\x80]
} 1
test utf-6.92 {Tcl_UtfNext, pointing to 2th byte of 4-byte valid sequence} {testutfnext testbytestring} {
    testutfnext [testbytestring \xA0\xA0\xA0]
} 3
test utf-6.93 {Tcl_UtfNext, pointing to 2th byte of 4-byte invalid sequence} {testutfnext testbytestring} {
    testutfnext [testbytestring \x80\x80\x80]
} 3
test utf-6.94 {Tcl_UtfNext, pointing to 2th byte of 5-byte invalid sequence} {testutfnext testbytestring} {
    testutfnext [testbytestring \xA0\xA0\xA0\xA0]
} 3
test utf-6.95 {Tcl_UtfNext, pointing to 2th byte of 5-byte invalid sequence} {testutfnext testbytestring} {
    testutfnext [testbytestring \x80\x80\x80\x80]
} 3

test utf-7.1 {Tcl_UtfPrev} testutfprev {
    testutfprev {}
} 0
test utf-7.2 {Tcl_UtfPrev} testutfprev {
    testutfprev A
} 0
test utf-7.3 {Tcl_UtfPrev} testutfprev {
    testutfprev AA
} 1
test utf-7.4 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xF8]
} 1
test utf-7.4.1 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xF8\xA0\xA0\xA0] 2
} 1
test utf-7.4.2 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xF8\xF8\xA0\xA0] 2
} 1
test utf-7.5 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xF2]
} 1
test utf-7.5.1 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xF2\xA0\xA0\xA0] 2
} 1
test utf-7.5.2 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xF2\xF8\xA0\xA0] 2
} 1
test utf-7.6 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xE8]
} 1
test utf-7.6.1 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A\u8820[testbytestring \xA0] 2
} 1
test utf-7.6.2 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xE8\xF8\xA0\xA0] 2
} 1
test utf-7.7 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xD0]
} 1
test utf-7.7.1 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xD0\xA0\xA0\xA0] 2
} 1
test utf-7.7.2 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xD0\xF8\xA0\xA0] 2
} 1
test utf-7.8 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xA0]
} 1
test utf-7.8.1 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xA0\xA0\xA0\xA0] 2
} 1
test utf-7.8.2 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xA0\xF8\xA0\xA0] 2
} 1
test utf-7.9 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xF8\xA0]
} 2
test utf-7.9.1 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xF8\xA0\xA0\xA0] 3
} 2
test utf-7.9.2 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xF8\xA0\xF8\xA0] 3
} 2
test utf-7.10.0 {Tcl_UtfPrev} {testutfprev testbytestring ucs2} {
    testutfprev A[testbytestring \xF2\xA0]
} 2
test utf-7.10.1 {Tcl_UtfPrev} {testutfprev testbytestring fullutf} {
    testutfprev A[testbytestring \xF2\xA0]
} 1
test utf-7.10.2 {Tcl_UtfPrev} {testutfprev testbytestring ucs2} {
    testutfprev A[testbytestring \xF2\xA0\xA0\xA0] 3
} 2
test utf-7.10.3 {Tcl_UtfPrev} {testutfprev testbytestring fullutf} {
    testutfprev A[testbytestring \xF2\xA0\xA0\xA0] 3
} 1
test utf-7.10.4 {Tcl_UtfPrev} {testutfprev testbytestring ucs2} {
    testutfprev A[testbytestring \xF2\xA0\xF8\xA0] 3
} 2
test utf-7.10.5 {Tcl_UtfPrev} {testutfprev testbytestring fullutf} {
    testutfprev A[testbytestring \xF2\xA0\xF8\xA0] 3
} 1
test utf-7.11 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xE8\xA0]
} 1
test utf-7.11.1 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A\u8820[testbytestring \xA0] 3
} 1
test utf-7.11.2 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xE8\xA0\xF8\xA0] 3
} 1
test utf-7.11.3 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xE8\xA0\xF8] 3
} 1
test utf-7.12 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xD0\xA0]
} 1
test utf-7.12.1 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xD0\xA0\xA0\xA0] 3
} 1
test utf-7.12.2 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xD0\xA0\xF8\xA0] 3
} 1
test utf-7.13 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xA0\xA0]
} 2
test utf-7.13.1 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xA0\xA0\xA0\xA0] 3
} 2
test utf-7.13.2 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xA0\xA0\xF8\xA0] 3
} 2
test utf-7.14 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xF8\xA0\xA0]
} 3
test utf-7.14.1 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xF8\xA0\xA0\xA0] 4
} 3
test utf-7.14.2 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xF8\xA0\xA0\xF8] 4
} 3
test utf-7.15.0 {Tcl_UtfPrev} {testutfprev testbytestring ucs2} {
    testutfprev A[testbytestring \xF2\xA0\xA0]
} 3
test utf-7.15.1 {Tcl_UtfPrev} {testutfprev testbytestring fullutf} {
    testutfprev A[testbytestring \xF2\xA0\xA0]
} 1
test utf-7.15.2 {Tcl_UtfPrev} {testutfprev testbytestring ucs2} {
    testutfprev A[testbytestring \xF2\xA0\xA0\xA0] 4
} 3
test utf-7.15.3 {Tcl_UtfPrev} {testutfprev testbytestring fullutf} {
    testutfprev A[testbytestring \xF2\xA0\xA0\xA0] 4
} 1
test utf-7.15.4 {Tcl_UtfPrev} {testutfprev testbytestring ucs2} {
    testutfprev A[testbytestring \xF2\xA0\xA0\xF8] 4
} 3
test utf-7.15.5 {Tcl_UtfPrev} {testutfprev testbytestring fullutf} {
    testutfprev A[testbytestring \xF2\xA0\xA0\xF8] 4
} 1
test utf-7.16 {Tcl_UtfPrev} testutfprev {
    testutfprev A\u8820
} 1
test utf-7.16.1 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A\u8820[testbytestring \xA0] 4
} 1
test utf-7.16.2 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A\u8820[testbytestring \xF8] 4
} 1
test utf-7.17 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xD0\xA0\xA0]
} 3
test utf-7.17.1 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xD0\xA0\xA0\xA0] 4
} 3
test utf-7.17.2 {Tcl_UtfPrev} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xD0\xA0\xA0\xF8] 4
} 3
test utf-7.18.0 {Tcl_UtfPrev} {testutfprev testbytestring utf16} {
    testutfprev A[testbytestring \xA0\xA0\xA0]
} 1
test utf-7.18.1 {Tcl_UtfPrev} {testutfprev testbytestring utf16} {
    testutfprev A[testbytestring \xA0\xA0\xA0\xA0] 4
} 1
test utf-7.18.2 {Tcl_UtfPrev} {testutfprev testbytestring utf16} {
    testutfprev A[testbytestring \xA0\xA0\xA0\xF8] 4
} 1
test utf-7.19 {Tcl_UtfPrev} {testutfprev testbytestring utf16} {
    testutfprev A[testbytestring \xF8\xA0\xA0\xA0]
} 2
test utf-7.20 {Tcl_UtfPrev} {testutfprev testbytestring utf16} {
    testutfprev A[testbytestring \xF2\xA0\xA0\xA0]
} 2
test utf-7.21 {Tcl_UtfPrev} {testutfprev testbytestring utf16} {
    testutfprev A\u8820[testbytestring \xA0]
} 2
test utf-7.22 {Tcl_UtfPrev} {testutfprev testbytestring utf16} {
    testutfprev A[testbytestring \xD0\xA0\xA0\xA0]
} 2
test utf-7.23 {Tcl_UtfPrev} {testutfprev testbytestring utf16} {
    testutfprev A[testbytestring \xA0\xA0\xA0\xA0]
} 2
test utf-7.24 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring} {
    testutfprev A[testbytestring \xC0\x81]
} 2
test utf-7.25 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring} {
    testutfprev A[testbytestring \xC0\x81] 2
} 1
test utf-7.26 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring} {
    testutfprev A[testbytestring \xE0\x80\x80]
} 3
test utf-7.27 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring} {
    testutfprev A[testbytestring \xE0\x80]
} 2
test utf-7.27.1 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring} {
    testutfprev A[testbytestring \xE0\x80\x80] 3
} 2
test utf-7.28 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring} {
    testutfprev A[testbytestring \xE0]
} 1
test utf-7.28.1 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring} {
    testutfprev A[testbytestring \xE0\x80\x80] 2
} 1
test utf-7.29 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring utf16} {
    testutfprev A[testbytestring \xF0\x80\x80\x80]
} 2
test utf-7.30 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring} {
    testutfprev A[testbytestring \xF0\x80\x80\x80] 4
} 3
test utf-7.31 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring} {
    testutfprev A[testbytestring \xF0\x80\x80\x80] 3
} 2
test utf-7.32 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring} {
    testutfprev A[testbytestring \xF0\x80\x80\x80] 2
} 1
test utf-7.33 {Tcl_UtfPrev -- overlong sequence}  testutfprev {
    testutfprev A\x00
} 1
test utf-7.34 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring} {
    testutfprev A[testbytestring \xC1\x80]
} 2
test utf-7.35 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring} {
    testutfprev A[testbytestring \xC2\x80]
} 1
test utf-7.36 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring} {
    testutfprev A[testbytestring \xE0\xA0\x80]
} 1
test utf-7.37 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring} {
    testutfprev A[testbytestring \xE0\xA0\x80] 3
} 1
test utf-7.38 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring} {
    testutfprev A[testbytestring \xE0\xA0\x80] 2
} 1
test utf-7.39 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring utf16} {
    testutfprev A[testbytestring \xF0\x90\x80\x80]
} 2
test utf-7.40.0 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring ucs2} {
    testutfprev A[testbytestring \xF0\x90\x80\x80] 4
} 3
test utf-7.40.1 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring fullutf} {
    testutfprev A[testbytestring \xF0\x90\x80\x80] 4
} 1
test utf-7.41.0 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring ucs2} {
    testutfprev A[testbytestring \xF0\x90\x80\x80] 3
} 2
test utf-7.41.1 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring fullutf} {
    testutfprev A[testbytestring \xF0\x90\x80\x80] 3
} 1
test utf-7.42 {Tcl_UtfPrev -- overlong sequence}  {testutfprev testbytestring} {
    testutfprev A[testbytestring \xF0\x90\x80\x80] 2
} 1
test utf-7.43 {Tcl_UtfPrev -- no lead byte at start}  {testutfprev testbytestring} {
    testutfprev [testbytestring \xA0]
} 0
test utf-7.44 {Tcl_UtfPrev -- no lead byte at start}  {testutfprev testbytestring} {
    testutfprev [testbytestring \xA0\xA0]
} 1
test utf-7.45 {Tcl_UtfPrev -- no lead byte at start}  {testutfprev testbytestring} {
    testutfprev [testbytestring \xA0\xA0\xA0]
} 2
test utf-7.46 {Tcl_UtfPrev -- no lead byte at start}  {testutfprev testbytestring utf16} {
    testutfprev [testbytestring \xA0\xA0\xA0\xA0]
} 1
test utf-7.47 {Tcl_UtfPrev, pointing to 3th byte of 3-byte valid sequence} {testutfprev testbytestring} {
    testutfprev [testbytestring \xE8\xA0]
} 0
test utf-7.47.1 {Tcl_UtfPrev, pointing to 3th byte of 3-byte valid sequence} testutfprev {
    testutfprev \u8820 2
} 0
test utf-7.47.2 {Tcl_UtfPrev, pointing to 3th byte of 3-byte invalid sequence} {testutfprev testbytestring} {
    testutfprev [testbytestring \xE8\xA0\x00] 2
} 0
test utf-7.48.0 {Tcl_UtfPrev, validity check [493dccc2de]} {testutfprev testbytestring utf16} {
    testutfprev A[testbytestring \xF4\x8F\xBF\xBF]
} 2
test utf-7.48.1 {Tcl_UtfPrev, validity check [493dccc2de]} {testutfprev testbytestring ucs2} {
    testutfprev A[testbytestring \xF4\x8F\xBF\xBF] 4
} 3
test utf-7.48.2 {Tcl_UtfPrev, validity check [493dccc2de]} {testutfprev testbytestring fullutf} {
    testutfprev A[testbytestring \xF4\x8F\xBF\xBF] 4
} 1
test utf-7.48.3 {Tcl_UtfPrev, validity check [493dccc2de]} {testutfprev testbytestring ucs2} {
    testutfprev A[testbytestring \xF4\x8F\xBF\xBF] 3
} 2
test utf-7.48.4 {Tcl_UtfPrev, validity check [493dccc2de]} {testutfprev testbytestring fullutf} {
    testutfprev A[testbytestring \xF4\x8F\xBF\xBF] 3
} 1
test utf-7.48.5 {Tcl_UtfPrev, validity check [493dccc2de]} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xF4\x8F\xBF\xBF] 2
} 1
test utf-7.49.0 {Tcl_UtfPrev, validity check [493dccc2de]} {testutfprev testbytestring utf16} {
    testutfprev A[testbytestring \xF4\x90\x80\x80]
} 2
test utf-7.49.1 {Tcl_UtfPrev, validity check [493dccc2de]} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xF4\x90\x80\x80] 4
} 3
test utf-7.49.2 {Tcl_UtfPrev, validity check [493dccc2de]} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xF4\x90\x80\x80] 3
} 2
test utf-7.49.3 {Tcl_UtfPrev, validity check [493dccc2de]} {testutfprev testbytestring} {
    testutfprev A[testbytestring \xF4\x90\x80\x80] 2
} 1

test utf-8.1 {Tcl_UniCharAtIndex: index = 0} {
    string index abcd 0
} a
test utf-8.2 {Tcl_UniCharAtIndex: index = 0} {
    string index \u4E4E\u25A 0
} \u4E4E
test utf-8.3 {Tcl_UniCharAtIndex: index > 0} {
    string index abcd 2
} c
test utf-8.4 {Tcl_UniCharAtIndex: index > 0} {
    string index \u4E4E\u25A\xFF\u543 2
} \xFF
test utf-8.5.0 {Tcl_UniCharAtIndex: high surrogate} ucs2 {
    string index \uD842 0
} \uD842
test utf-8.5.1 {Tcl_UniCharAtIndex: high surrogate} ucs4 {
    string index \uD842 0
} \uD842
test utf-8.5.2 {Tcl_UniCharAtIndex: high surrogate} utf16 {
    string index \uD842 0
} \uD842
test utf-8.6 {Tcl_UniCharAtIndex: low surrogate} {
    string index \uDC42 0
} \uDC42
test utf-8.7.0 {Tcl_UniCharAtIndex: Emoji} ucs2 {
    string index \uD83D\uDE00G 0
} \uD83D
test utf-8.7.1 {Tcl_UniCharAtIndex: Emoji} ucs4 {
    string index \uD83D\uDE00G 0
} \U1F600
test utf-8.7.2 {Tcl_UniCharAtIndex: Emoji} utf16 {
    string index \uD83D\uDE00G 0
} \U1F600
test utf-8.8.0 {Tcl_UniCharAtIndex: Emoji} ucs2 {
    string index \uD83D\uDE00G 1
} \uDE00
test utf-8.8.1 {Tcl_UniCharAtIndex: Emoji} ucs4 {
    string index \uD83D\uDE00G 1
} G
test utf-8.8.2 {Tcl_UniCharAtIndex: Emoji} utf16 {
    string index \uD83D\uDE00G 1
} {}
test utf-8.9.0 {Tcl_UniCharAtIndex: Emoji} ucs2 {
    string index \uD83D\uDE00G 2
} G
test utf-8.9.1 {Tcl_UniCharAtIndex: Emoji} ucs4 {
    string index \uD83D\uDE00G 2
} {}
test utf-8.9.2 {Tcl_UniCharAtIndex: Emoji} utf16 {
    string index \uD83D\uDE00G 2
} G
test utf-8.10.0 {Tcl_UniCharAtIndex: Emoji} {Uesc ucs2} {
    string index \U1F600G 0
} \uFFFD
test utf-8.10.1 {Tcl_UniCharAtIndex: Emoji} {Uesc ucs4} {
    string index \U1F600G 0
} \U1F600
test utf-8.10.2 {Tcl_UniCharAtIndex: Emoji} {Uesc utf16} {
    string index \U1F600G 0
} \U1F600
test utf-8.11.0 {Tcl_UniCharAtIndex: Emoji} {Uesc ucs2} {
    string index \U1F600G 1
} G
test utf-8.11.1 {Tcl_UniCharAtIndex: Emoji} {Uesc ucs4} {
    string index \U1F600G 1
} G
test utf-8.11.2 {Tcl_UniCharAtIndex: Emoji} {Uesc utf16} {
    string index \U1F600G 1
} {}
test utf-8.12.0 {Tcl_UniCharAtIndex: Emoji} {Uesc ucs2} {
    string index \U1F600G 2
} {}
test utf-8.12.1 {Tcl_UniCharAtIndex: Emoji} {Uesc ucs4} {
    string index \U1F600G 2
} {}
test utf-8.12.2 {Tcl_UniCharAtIndex: Emoji} {Uesc utf16} {
    string index \U1F600G 2
} G

test utf-9.1 {Tcl_UtfAtIndex: index = 0} {
    string range abcd 0 2
} abc
test utf-9.2 {Tcl_UtfAtIndex: index > 0} {
    string range \u4E4E\u25A\xFF\u543klmnop 1 5
} \u25A\xFF\u543kl
test utf-9.3.0 {Tcl_UtfAtIndex: index = 0, Emoji} ucs2 {
    string range \uD83D\uDE00G 0 0
} \uD83D
test utf-9.3.1 {Tcl_UtfAtIndex: index = 0, Emoji} ucs4 {
    string range \uD83D\uDE00G 0 0
} \U1F600
test utf-9.3.2 {Tcl_UtfAtIndex: index = 0, Emoji} utf16 {
    string range \uD83D\uDE00G 0 0
} \U1F600
test utf-9.4.0 {Tcl_UtfAtIndex: index > 0, Emoji} ucs2 {
    string range \uD83D\uDE00G 1 1
} \uDE00
test utf-9.4.1 {Tcl_UtfAtIndex: index > 0, Emoji} ucs4 {
    string range \uD83D\uDE00G 1 1
} G
test utf-9.4.2 {Tcl_UtfAtIndex: index > 0, Emoji} utf16 {
    string range \uD83D\uDE00G 1 1
} {}
test utf-9.5.0 {Tcl_UtfAtIndex: index > 0, Emoji} ucs2 {
    string range \uD83D\uDE00G 2 2
} G
test utf-9.5.1 {Tcl_UtfAtIndex: index > 0, Emoji} ucs4 {
    string range \uD83D\uDE00G 2 2
} {}
test utf-9.5.2 {Tcl_UtfAtIndex: index > 0, Emoji} utf16 {
    string range \uD83D\uDE00G 2 2
} G
test utf-9.6.0 {Tcl_UtfAtIndex: index = 0, Emoji} {Uesc ucs2} {
    string range \U1f600G 0 0
} \uFFFD
test utf-9.6.1 {Tcl_UtfAtIndex: index = 0, Emoji} {Uesc ucs4} {
    string range \U1f600G 0 0
} \U1F600
test utf-9.6.2 {Tcl_UtfAtIndex: index = 0, Emoji} {Uesc utf16} {
    string range \U1f600G 0 0
} \U1F600
test utf-9.7.0 {Tcl_UtfAtIndex: index > 0, Emoji} {Uesc ucs2} {
    string range \U1f600G 1 1
} G
test utf-9.7.1 {Tcl_UtfAtIndex: index > 0, Emoji} {Uesc ucs4} {
    string range \U1f600G 1 1
} G
test utf-9.7.2 {Tcl_UtfAtIndex: index > 0, Emoji} {Uesc utf16} {
    string range \U1f600G 1 1
} {}
test utf-9.8.0 {Tcl_UtfAtIndex: index > 0, Emoji} {Uesc ucs2} {
    string range \U1f600G 2 2
} {}
test utf-9.8.1 {Tcl_UtfAtIndex: index > 0, Emoji} {Uesc ucs4} {
    string range \U1f600G 2 2
} {}
test utf-9.8.2 {Tcl_UtfAtIndex: index > 0, Emoji} {Uesc utf16} {
    string range \U1f600G 2 2
} G

test utf-10.1 {Tcl_UtfBackslash: dst == NULL} {
    set x \n
} {
}
test utf-10.2 {Tcl_UtfBackslash: \u subst} testbytestring {
    expr {"\uA2" eq [testbytestring \xC2\xA2]}
} 1
test utf-10.3 {Tcl_UtfBackslash: longer \u subst} testbytestring {
    expr {"\u4E21" eq [testbytestring \xE4\xB8\xA1]}
} 1
test utf-10.4 {Tcl_UtfBackslash: stops at first non-hex} testbytestring {
    expr {"\u4E2k" eq "[testbytestring \xD3\xA2]k"}
} 1
test utf-10.5 {Tcl_UtfBackslash: stops after 4 hex chars} testbytestring {
    expr {"\u4E216" eq "[testbytestring \xE4\xB8\xA1]6"}
} 1
test utf-10.6 {Tcl_UtfBackslash: stops after 5 hex chars} {Uesc fullutf testbytestring} {
    expr {"\U1E2165" eq "[testbytestring \xF0\x9E\x88\x96]5"}
} 1
test utf-10.7 {Tcl_UtfBackslash: stops after 6 hex chars} {Uesc fullutf testbytestring} {
    expr {"\U10E2165" eq "[testbytestring \xF4\x8E\x88\x96]5"}
} 1

proc bsCheck {char num {constraints {}}} {
    global errNum
    test utf-10.$errNum {backslash substitution} $constraints {
	scan $char %c value
	set value
    } $num
    incr errNum
}
set errNum 8
bsCheck \b	8
bsCheck \e	101
bsCheck \f	12
bsCheck \n	10
bsCheck \r	13
bsCheck \t	9
bsCheck \v	11
bsCheck \{	123
bsCheck \}	125
bsCheck \[	91
bsCheck \]	93
bsCheck \$	36
bsCheck \ 	32
bsCheck \;	59
bsCheck \\	92
bsCheck \Ca	67
bsCheck \Ma	77
bsCheck \CMa	67
# prior to 8.3, this returned 8, as \8 as accepted as an
# octal value - but it isn't! [Bug: 3975]
bsCheck \8a	56
bsCheck \14	12
bsCheck \141	97
bsCheck b\0	98
bsCheck \x	120
bsCheck \xa	10
bsCheck \xA	10
bsCheck \x41	65
bsCheck \x541	65	pre388	;# == \x41
bsCheck \x541	84	!pre388	;# == \x54 1
bsCheck \u	117
bsCheck \uk	117
bsCheck \u41	65
bsCheck \ua	10
bsCheck \uA	10
bsCheck \340	224
bsCheck \uA1	161
bsCheck \u4E21	20001
bsCheck \741    225	pre388	;# == \341
bsCheck \741    60	!pre388	;# == \74 1
bsCheck \U      85
bsCheck \Uk     85
bsCheck \U41    65			Uesc
bsCheck \Ua     10			Uesc
bsCheck \UA     10			Uesc
bsCheck \UA1    161			Uesc
bsCheck \U4E21  20001			Uesc
bsCheck \U004E21        20001		Uesc
bsCheck \U00004E21      20001		Uesc
bsCheck \U0000004E21    78		Uesc
bsCheck \U00110000      69632		{Uesc fullutf}
bsCheck \U01100000      69632		{Uesc fullutf}
bsCheck \U11000000      69632		{Uesc fullutf}
bsCheck \U0010FFFF      1114111		{Uesc fullutf}
bsCheck \U010FFFF0      1114111		{Uesc fullutf}
bsCheck \U10FFFF00      1114111		{Uesc fullutf}
bsCheck \UFFFFFFFF      1048575		{Uesc fullutf}

test utf-11.1 {Tcl_UtfToUpper} {
    string toupper {}
} {}
test utf-11.2 {Tcl_UtfToUpper} {
    string toupper abc
} ABC
test utf-11.3 {Tcl_UtfToUpper} {
    string toupper \xE3gh
} \xC3GH
test utf-11.4 {Tcl_UtfToUpper} {
    string toupper \u01E3gh
} \u01E2GH
test utf-11.5 {Tcl_UtfToUpper Georgian (new in Unicode 11)} {
    string toupper \u10D0\u1C90
} \u1C90\u1C90
test utf-11.6 {Tcl_UtfToUpper beyond U+FFFF} {Uesc fullutf} {
    string toupper \U10428
} \U10400
test utf-11.7 {Tcl_UtfToUpper beyond U+FFFF} fullutf {
    string toupper \uD801\uDC28
} \uD801\uDC00
test utf-11.8 {Tcl_UtfToUpper low/high surrogate)} {
    string toupper \uDC24\uD824
} \uDC24\uD824

test utf-12.1 {Tcl_UtfToLower} {
    string tolower {}
} {}
test utf-12.2 {Tcl_UtfToLower} {
    string tolower ABC
} abc
test utf-12.3 {Tcl_UtfToLower} {
    string tolower \xC3GH
} \xE3gh
test utf-12.4 {Tcl_UtfToLower} {
    string tolower \u01E2GH
} \u01E3gh
test utf-12.5 {Tcl_UtfToLower Georgian (new in Unicode 11)} {
    string tolower \u10D0\u1C90
} \u10D0\u10D0
test utf-12.6 {Tcl_UtfToLower low/high surrogate)} {
    string tolower \uDC24\uD824
} \uDC24\uD824
test utf-12.7 {Tcl_UtfToLower beyond U+FFFF} {Uesc fullutf} {
    string tolower \U10400
} \U10428
test utf-12.8 {Tcl_UtfToLower beyond U+FFFF} fullutf {
    string tolower \uD801\uDC00
} \uD801\uDC28

test utf-13.1 {Tcl_UtfToTitle} {
    string totitle {}
} {}
test utf-13.2 {Tcl_UtfToTitle} {
    string totitle abc
} Abc
test utf-13.3 {Tcl_UtfToTitle} {
    string totitle \xE3GH
} \xC3gh
test utf-13.4 {Tcl_UtfToTitle} {
    string totitle \u01F3AB
} \u01F2ab
test utf-13.5 {Tcl_UtfToTitle Georgian (new in Unicode 11)} {
    string totitle \u10D0\u1C90
} \u10D0\u1C90
test utf-13.6 {Tcl_UtfToTitle Georgian (new in Unicode 11)} {
    string totitle \u1C90\u10D0
} \u1C90\u10D0
test utf-13.7 {Tcl_UtfToTitle low/high surrogate)} {
    string totitle \uDC24\uD824
} \uDC24\uD824
test utf-13.8 {Tcl_UtfToTitle beyond U+FFFF} {Uesc fullutf} {
    string totitle \U10428\U10400
} \U10400\U10428
test utf-13.9 {Tcl_UtfToTitle beyond U+FFFF} fullutf {
    string totitle \uD801\uDC28\uD801\uDC00
} \uD801\uDC00\uD801\uDC28

test utf-14.1 {Tcl_UtfNcasecmp} {
    string compare -nocase a b
} -1
test utf-14.2 {Tcl_UtfNcasecmp} {
    string compare -nocase b a
} 1
test utf-14.3 {Tcl_UtfNcasecmp} {
    string compare -nocase B a
} 1
test utf-14.4 {Tcl_UtfNcasecmp} {
    string compare -nocase aBcB abca
} 1

test utf-15.1 {Tcl_UniCharToUpper, negative delta} {
    string toupper aA
} AA
test utf-15.2 {Tcl_UniCharToUpper, positive delta} {
    string toupper \u0178\xFF
} \u0178\u0178
test utf-15.3 {Tcl_UniCharToUpper, no delta} {
    string toupper !
} !

test utf-16.1 {Tcl_UniCharToLower, negative delta} {
    string tolower aA
} aa
test utf-16.2 {Tcl_UniCharToLower, positive delta} {
    string tolower \u0178\xFF\uA78D\u01C5
} \xFF\xFF\u0265\u01C6

test utf-17.1 {Tcl_UniCharToLower, no delta} {
    string tolower !
} !

test utf-18.1 {Tcl_UniCharToTitle, add one for title} {
    string totitle \u01C4
} \u01C5
test utf-18.2 {Tcl_UniCharToTitle, subtract one for title} {
    string totitle \u01C6
} \u01C5
test utf-18.3 {Tcl_UniCharToTitle, subtract delta for title (positive)} {
    string totitle \u017F
} \x53
test utf-18.4 {Tcl_UniCharToTitle, subtract delta for title (negative)} {
    string totitle \xFF
} \u0178
test utf-18.5 {Tcl_UniCharToTitle, no delta} {
    string totitle !
} !

test utf-19.1 {TclUniCharLen} -body {
    list [regexp \\d abc456def foo] $foo
} -cleanup {
    unset -nocomplain foo
} -result {1 4}

test utf-20.1 {TclUniCharNcmp} ucs4 {
    string compare [string range [format %c 0xFFFF] 0 0] [string range [format %c 0x10000] 0 0]
} -1
test utf-20.2 {[4c591fa487] TclUniCharNcmp/TclUtfNcmp} ucs2 {
    set one [format %c 0xFFFF]
    set two [format %c 0x10000]
    set first [string compare $one $two]
    string range $one 0 0
    string range $two 0 0
    set second [string compare $one $two]
    expr {($first == $second) ? "agree" : "disagree"}
} agree
test utf-20.2.1 {[4c591fa487] TclUniCharNcmp/TclUtfNcmp} {utf16 knownBug} {
    set one [format %c 0xFFFF]
    set two [format %c 0x10000]
    set first [string compare $one $two]
    string range $one 0 0
    string range $two 0 0
    set second [string compare $one $two]
    expr {($first == $second) ? "agree" : "disagree"}
} agree
test utf-20.2.2 {[4c591fa487] TclUniCharNcmp/TclUtfNcmp} ucs4 {
    set one [format %c 0xFFFF]
    set two [format %c 0x10000]
    set first [string compare $one $two]
    string range $one 0 0
    string range $two 0 0
    set second [string compare $one $two]
    expr {($first == $second) ? "agree" : "disagree"}
} agree

test utf-21.1 {TclUniCharIsAlnum} {
    # this returns 1 with Unicode 7 compliance
    string is alnum \u1040\u021F\u0220
} 1
test utf-21.2 {unicode alnum char in regc_locale.c} {
    # this returns 1 with Unicode 7 compliance
    list [regexp {^[[:alnum:]]+$} \u1040\u021F\u0220] [regexp {^\w+$} \u1040\u021F\u0220_\u203F\u2040\u2054\uFE33\uFE34\uFE4D\uFE4E\uFE4F\uFF3F]
} {1 1}
test utf-21.3 {unicode print char in regc_locale.c} {
    # this returns 1 with Unicode 7 compliance
    regexp {^[[:print:]]+$} \uFBC1
} 1
test utf-21.4 {TclUniCharIsGraph} {
    # [Bug 3464428]
    string is graph \u0120
} 1
test utf-21.5 {unicode graph char in regc_locale.c} {
    # [Bug 3464428]
    regexp {^[[:graph:]]+$} \u0120
} 1
test utf-21.6 {TclUniCharIsGraph} {
    # [Bug 3464428]
    string is graph \xA0
} 0
test utf-21.7 {unicode graph char in regc_locale.c} {
    # [Bug 3464428]
    regexp {[[:graph:]]} \x20\xA0\u2028\u2029
} 0
test utf-21.8 {TclUniCharIsPrint} {
    # [Bug 3464428]
    string is print \x09
} 0
test utf-21.9 {unicode print char in regc_locale.c} {
    # [Bug 3464428]
    regexp {[[:print:]]} \x09
} 0
test utf-21.10 {unicode print char in regc_locale.c} {
    # [Bug 3464428]
    regexp {[[:print:]]} \x09
} 0
test utf-21.11 {TclUniCharIsControl} {
    # [Bug 3464428]
    string is control \x00\x1F\xAD\u0605\u061C\u180E\u2066\uFEFF
} 1
test utf-21.12 {unicode control char in regc_locale.c} {
    # [Bug 3464428], [Bug a876646efe]
    regexp {^[[:cntrl:]]*$} \x00\x1F\xAD\u0605\u061C\u180E\u2066\uFEFF
} 1

test utf-22.1 {TclUniCharIsWordChar} {
    string wordend "xyz123_bar fg" 0
} 10
test utf-22.2 {TclUniCharIsWordChar} {
    string wordend "x\u5080z123_bar\u203C fg" 0
} 10

test utf-23.1 {TclUniCharIsAlpha} {
    # this returns 1 with Unicode 7 compliance
    string is alpha \u021F\u0220\u037F\u052F
} 1
test utf-23.2 {unicode alpha char in regc_locale.c} {
    # this returns 1 with Unicode 7 compliance
    regexp {^[[:alpha:]]+$} \u021F\u0220\u037F\u052F
} 1

test utf-24.1 {TclUniCharIsDigit} {
    # this returns 1 with Unicode 7 compliance
    string is digit \u1040\uABF0
} 1
test utf-24.2 {unicode digit char in regc_locale.c} {
    # this returns 1 with Unicode 7 compliance
    list [regexp {^[[:digit:]]+$} \u1040\uABF0] [regexp {^\d+$} \u1040\uABF0]
} {1 1}

test utf-24.3 {TclUniCharIsSpace} {
    # this returns 1 with Unicode 7 compliance
    string is space \u1680\u180E\u202F
} 1
test utf-24.4 {unicode space char in regc_locale.c} {
    # this returns 1 with Unicode 7 compliance
    list [regexp {^[[:space:]]+$} \u1680\u180E\u202F] [regexp {^\s+$} \u1680\u180E\u202F]
} {1 1}
test utf-24.5 {TclUniCharIsSpace} tip413 {
    # this returns 1 with Unicode 7/TIP 413 compliance
    string is space \x85\u1680\u180E\u200B\u202F\u2060
} 1
test utf-24.6 {unicode space char in regc_locale.c} tip413 {
    # this returns 1 with Unicode 7/TIP 413 compliance
    list [regexp {^[[:space:]]+$} \x85\u1680\u180E\u200B\u202F\u2060] [regexp {^\s+$} \x85\u1680\u180E\u200B\u202F\u2060]
} {1 1}

proc UniCharCaseCmpTest {order one two {constraints {}}} {
    variable count
    test utf-25.$count {Tcl_UniCharNcasecmp} -setup {
	testobj freeallvars
    } -constraints [linsert $constraints 0 teststringobj] -cleanup {
	testobj freeallvars
    } -body {
	teststringobj set 1 $one
	teststringobj set 2 $two
	teststringobj maxchars 1
	teststringobj maxchars 2
	set result [string compare -nocase [teststringobj get 1] [teststringobj get 2]]
	if {$result eq [string map {< -1 = 0 > 1} $order]} {
	    set result ok
	} else {
	    set result "'$one' should be $order '$two' (no case)"
	}
	set result
    } -result ok
    incr count
}
variable count 1
UniCharCaseCmpTest < a b
UniCharCaseCmpTest > b a
UniCharCaseCmpTest > B a
UniCharCaseCmpTest > aBcB abca
UniCharCaseCmpTest < \uFFFF [format %c 0x10000] ucs4
UniCharCaseCmpTest < \uFFFF \U10000		{Uesc ucs4}
UniCharCaseCmpTest > [format %c 0x10000] \uFFFF	ucs4
UniCharCaseCmpTest > \U10000 \uFFFF		{Uesc ucs4}


test utf-26.1 {Tcl_UniCharDString} -setup {
    testobj freeallvars
} -constraints {teststringobj testbytestring} -cleanup {
    testobj freeallvars
} -body {
    teststringobj set 1 foo
    teststringobj maxchars 1
    teststringobj append 1 [testbytestring barsoom\xF2\xC2\x80] 10
    scan [string index [teststringobj get 1] 11] %c
} -result 128


unset count
rename UniCharCaseCmpTest {}

# cleanup
::tcltest::cleanupTests
return

# Local Variables:
# mode: tcl
# End: