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-rwxr-xr-xBuild/source/texk/web2c/luatexdir/slnunicode/unitest215
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diff --git a/Build/source/texk/web2c/luatexdir/slnunicode/unitest b/Build/source/texk/web2c/luatexdir/slnunicode/unitest
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+#!/opt/lua-5.0.2/bin/lua
+-- there are four string-like ctype closures:
+-- unicode.ascii, latin1, utf8 and grapheme
+--
+-- ascii and latin1 are single-byte like string,
+-- but use the unicode table for upper/lower and character classes
+-- ascii does not touch bytes > 127 on upper/lower
+--
+-- ascii or latin1 can be used as locale-independent string replacement.
+-- (There is a compile switch to do this automatically for ascii).
+--
+-- UTF-8 operates on UTF-8 sequences as of RFC 3629:
+-- 1 byte 0-7F, 2 byte 80-7FF, 3 byte 800-FFFF, 4 byte 1000-10FFFF
+-- (not exclusing UTF-16 surrogate characters)
+-- Any byte not part of such a sequence is treated as it's (Latin-1) value.
+--
+-- Grapheme takes care of grapheme clusters, which are characters followed by
+-- "grapheme extension" characters (Mn+Me) like combining diacritical marks.
+--
+-- calls are:
+-- len(str)
+-- sub(str, start [,end=-1])
+-- byte(str, start [,end=-1])
+-- lower(str)
+-- upper(str)
+-- char(i [,j...])
+-- reverse(str)
+--
+-- same as in string: rep, format, dump
+-- TODO: use char count with %s in format? (sub does the job)
+-- TODO: grapheme.byte: only first code of any cluster?
+--
+-- find, gfind, gsub: done, but need thorough testing ...:
+-- ascii does not match them on any %class (but on ., literals and ranges)
+-- behaviour of %class with class not ASCII is undefined
+-- frontier %f currently disabled -- should we?
+--
+-- character classes are:
+-- %a L* (Lu+Ll+Lt+Lm+Lo)
+-- %c Cc
+-- %d 0-9
+-- %l Ll
+-- %n N* (Nd+Nl+No, new)
+-- %p P* (Pc+Pd+Ps+Pe+Pi+Pf+Po)
+-- %s Z* (Zs+Zl+Zp) plus the controls 9-13 (HT,LF,VT,FF,CR)
+-- %u Lu (also Lt ?)
+-- %w %a+%n+Pc (e.g. '_')
+-- %x 0-9A-Za-z
+-- %z the 0 byte
+-- c.f. http://unicode.org/Public/UNIDATA/UCD.html#General_Category_Values
+-- http://unicode.org/Public/UNIDATA/UnicodeData.txt
+--
+-- NOTE: find positions are in bytes for all ctypes!
+-- use ascii.sub to cut found ranges!
+-- this is a) faster b) more reliable
+--
+-- UTF-8 behaviour: match is by codes, code ranges are supported
+--
+-- grapheme behaviour: any %class, '.' and range match includes
+-- any following grapheme extensions.
+-- Ranges apply to single code points only.
+-- If a [] enumeration contains a grapheme cluster,
+-- this matches only the exact same cluster.
+-- However, a literal single 'o' standalone or in an [] enumeration
+-- will match just that 'o', even if it has a extension in the string.
+-- Consequently, grapheme match positions are not always cluster positions.
+--
+
+local unicode = require("unicode")
+local utf8 = unicode.utf8
+unicode.string = string -- for tests unicode[ctype]
+local sprintf = string.format
+local function printf (fmt, ...) return print(sprintf(fmt, ...)) end
+
+local function check (test, ok, got)
+ if ok == got then return printf("ok %s = %s",test,ok) end
+ return printf("NOK %s = %s GOT '%s'",test, ok, got or "<nil>")
+end
+local function checka (test, ok, ...)
+ local arg = {...}
+ arg[1] = arg[1] or ""
+ return check(test, ok, table.concat(arg, ","))
+end
+
+
+local function testlen (str,bytes,codes,chars)
+ codes = codes or bytes
+ chars = chars or codes
+ return check(sprintf("len '%s'", str),
+ sprintf("%d/%d/%d", bytes, codes, chars),
+sprintf("%d/%d/%d", string.len(str), utf8.len(str), unicode.grapheme.len(str)))
+end
+
+-- 176 = 00B0;DEGREE SIGN -- UTF-8: C2,B0 = \194\176
+-- 196 = 00C4;LATIN CAPITAL LETTER A WITH DIAERESIS
+-- 214 = 00D6;LATIN CAPITAL LETTER O WITH DIAERESIS
+-- 776 = 0308;COMBINING DIAERESIS -- UTF-8: CC,88 = \204\136
+testlen("A\tB",3) -- plain Latin-1
+testlen("\176\196\214",3) -- plain Latin-1
+testlen("\196\176\214",3,2) -- C4,B0 is valid seq 0130 I WITH DOT ABOVE
+testlen("\192\178",2) -- C0,B2 is bad seq for 2
+testlen("°ÄÖ",6,3) -- simple Latin-1 chars in UTF-8
+testlen("\204\136A\204\136O\204\136",8,5,3) -- decomposed (with broken lead)
+
+
+local function testsub (ctype,ok,str,start,e)
+ return check(sprintf("%s.sub('%s',%d,%d)", ctype, str, start, e), ok,
+ unicode[ctype].sub(str,start,e))
+end
+testsub("ascii","BCD","ABCDE",2,4)
+testsub("utf8","BCD","ABCDE",2,4)
+testsub("latin1","Ä","°ÄÖ",3,4)
+testsub("utf8","Ä","°ÄÖ",2,2)
+testsub("utf8","ÄÖ","°ÄÖ",2,-1)
+testsub("utf8","\204\136","A\204\136O\204\136",2,2) -- decomposed
+testsub("grapheme","O\204\136","A\204\136O\204\136",2,2) -- decomposed
+
+
+local function testbyte (ctype, ok, str, ...)
+ return checka(sprintf("%s.byte('%s',%s)",ctype,str,table.concat({...}, ",")),
+ ok, unicode[ctype].byte(str, ...))
+end
+testbyte("string","194,176","Ä°Ö",3,4) -- the UTF-8 seq for °
+testbyte("ascii","194,176","Ä°Ö",3,4)
+testbyte("utf8","176,214","Ä°Ö",2,3) -- code points for °,Ö
+testbyte("utf8","65,776","\204\136A\204\136O\204\136",2,3) -- decomposed
+testbyte("grapheme","65,776","\204\136A\204\136O\204\136",2) -- decomposed
+
+
+local function testchar (ctype, ok, ...)
+ return check(sprintf("%s.char(%s)",ctype,table.concat({...}, ",")),
+ ok, unicode[ctype].char(...))
+end
+testchar("ascii", "AB", 65,66)
+testchar("ascii", "\176", 176)
+testchar("utf8", "\194\176", 176)
+
+
+local function testcase (ctype,str,up,lo)
+ check(sprintf("%s.lower('%s')", ctype, str), lo, unicode[ctype].lower(str))
+ check(sprintf("%s.upper('%s')", ctype, str), up, unicode[ctype].upper(str))
+end
+-- upper/lower also fixes plain Latin
+testcase("utf8","Ab\196üo\204\136","ABÄÜO\204\136","abäüo\204\136")
+testcase("ascii","Ab\196üo\204\136","AB\196üO\204\136","ab\196üo\204\136")
+testcase("latin1","Ab\196","AB\196","ab\228")
+
+
+local function testrev (ctype,ok,str)
+ return check(sprintf("%s.reverse('%s')",ctype,str),
+ ok, unicode[ctype].reverse(str))
+end
+testrev("ascii","b\136\204oa\176\194ba","ab°ao\204\136b");
+testrev("utf8","b\204\136oa°ba","ab°ao\204\136b");
+testrev("grapheme","bo\204\136a°ba","ab°ao\204\136b");
+
+
+
+local function testfind (ctype,ok,str,pat)
+ return checka(sprintf("%s.find('%s','%s')",ctype,str,pat),
+ ok, unicode[ctype].find(str, pat))
+end
+testfind("ascii","1,1","e=mc2","%a")
+testfind("ascii","3,4","e=mc2","%a%a")
+testfind("ascii","5,5","e=mc2","%d")
+testfind("ascii","","Ä","%a")
+testfind("ascii","1,2","Ä","%A*")
+testfind("latin1","1,1","Ä","%a")
+testfind("utf8","1,2","Ä","%a")
+testfind("utf8","1,1","o\204\136","%a*")
+testfind("utf8","2,3","o\204\136","%A")
+testfind("utf8","1,1","o\204\136",".")
+testfind("grapheme","1,3","o\204\136","%a*")
+testfind("grapheme","2,3","o\204\136","%A") -- didn't expect this?
+testfind("grapheme","1,3","o\204\136",".")
+testfind("utf8","4,5","ÜHÄPPY","[À-Ö]")
+testfind("utf8","4,5","ÜHÄPPY","[Ä-]")
+testfind("utf8","7,7","ÜHÄP-PY","[ä-]")
+testfind("ascii","1,4","abcdef","%a*d")
+testfind("utf8","1,10","äöüßü","%a*ü")
+testfind("utf8","1,6","äöüß","%a*ü")
+testfind("utf8","4,5,Ä","ÜHÄPPY","([À-Ö])")
+testfind("utf8","1,5,ÜHÄ","ÜHÄ_PPY","([%w]+)")
+testfind("utf8","1,9,ÜHÄ_PPY","ÜHÄ_PPY","([%w_]+)")
+
+
+local function testgsub (ctype,ok,str,pat,repl)
+ return check(sprintf("%s.gsub('%s','%s','%s')",ctype,str,pat,repl),
+ ok, unicode[ctype].gsub(str,pat,repl))
+end
+testgsub("ascii","hello hello world world","hello world", "(%w+)", "%1 %1")
+testgsub("ascii","world hello Lua from",
+ "hello world from Lua", "(%w+)%s*(%w+)", "%2 %1")
+testgsub("ascii","l helö wöfr rldöL müä",
+ "hellö wörld fröm Lüä", "(%w+)%s*(%w+)", "%2 %1")
+testgsub("utf8","wörld hellö Lüä fröm",
+ "hellö wörld fröm Lüä", "(%w+)%s*(%w+)", "%2 %1")
+testgsub("utf8","HÜppÄ","HÄppÜ","([À-Ö])(%l*)(%u)","%3%2%1")
+
+
+fail = 0
+for i=0,65535 do if i ~= utf8.byte(utf8.char(i)) then fail=fail+1 end end
+check("code-decode failures", 0, fail)
+
+--[[ print the table
+for i=192,65535,64 do
+ local k = i/64
+ io.write(sprintf("%04x\\%3d\\%3d ",i, 224+k/64, 128+math.mod(k,64)))
+ for j=i,i+63 do
+ io.write(utf8.char(j))
+ end
+ io.write("\n")
+end
+]]
+