Update Oniguruma's UnicodeData to 5.1.

* tool/enc-unicode.rb: added for generate name2ctype.kwd.
  contributed by Run Paint Run Run [ruby-core:24775]
  use like following:
    ruby19 tool/enc-unicode.rb enc/unicode/UnicodeData.txt \
      enc/unicode/Scripts.txt > enc/unicode/name2ctype.kwd

* enc/unicode.c (CodeRanges): move definitions to name2ctype.h.

* enc/unicode/name2ctype.h.blt, enc/unicode/name2ctype.kwd,
  enc/unicode/name2ctype.src: updated to v5.1.

* enc/unicode/UnicodeData.txt, enc/unicode/Scripts.txt: added v5.1.

* Makefile.in: add rule to generate name2ctype.kwd from
  UnicodeData.txt and Scripts.txt.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@24651 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 230 insertions, 0 deletions

diff --git a/tool/enc-unicode.rb b/tool/enc-unicode.rb
new file mode 100755
index 0000000000..b9f19c90be
--- /dev/null
+++ b/tool/enc-unicode.rb
@@ -0,0 +1,230 @@
+#!/usr/bin/env ruby
+
+# Creates the data structures needed by Onigurma to map Unicode codepoints to
+# property names and POSIX character classes
+
+unless ARGV.size == 2
+  $stderr.puts "Usage: #{$0} UnicodeData.txt Scripts.txt"
+  exit(1)
+end
+
+POSIX_NAMES = %w[NEWLINE Alpha Blank Cntrl Digit Graph Lower Print Punct Space Upper XDigit Word Alnum ASCII]
+
+def pair_codepoints(codepoints)
+
+  # We have a sorted Array of codepoints that we wish to partition into
+  # ranges such that the start- and endpoints form an inclusive set of
+  # codepoints with property _property_. Note: It is intended that some ranges
+  # will begin with the value with  which they end, e.g. 0x0020 -> 0x0020
+
+  codepoints = codepoints.uniq.sort
+  last_cp = codepoints.first
+  pairs = [[last_cp, nil]]
+  codepoints[1..-1].each do |codepoint|
+
+    # If the current codepoint does not follow directly on from the last
+    # codepoint, the last codepoint represents the end of the current range,
+    # and the current codepoint represents the start of the next range.
+    if last_cp.next != codepoint
+      pairs[-1][-1] = last_cp
+      pairs << [codepoint, nil]
+    end
+    last_cp = codepoint
+  end
+
+  # The final pair has as its endpoint the last codepoint for this property
+  pairs[-1][-1] = codepoints.last
+  pairs
+end
+
+def parse_unicode_data(file)
+  last_cp = 0
+  data = {'Cn' => []}
+  IO.foreach(file) do |line|
+    fields = line.split(';')
+    cp = fields[0].to_i(16)
+
+    # The Cn category represents unassigned characters. These are not listed in
+    # UnicodeData.txt so we must derive them by looking for 'holes' in the range
+    # of listed codepoints. We increment the last codepoint seen and compare it
+    # with the current codepoint. If the current codepoint is less than
+    # last_cp.next we have found a hole, so we add the missing codepoint to the
+    # Cn category.
+    while ((last_cp = last_cp.next) < cp)
+      data['Cn'] << last_cp
+    end
+
+    # The third field denotes the 'General' category, e.g. Lu
+    (data[fields[2]] ||= []) << cp
+
+    # The 'Major' category is the first letter of the 'General' category, e.g.
+    # 'Lu' -> 'L'
+    (data[fields[2][0,1]] ||= []) << cp
+    last_cp = cp
+  end
+
+  # General Category property
+  gcps = %w[Any Assigned]
+  gcps.concat data.keys.sort
+
+  # The last Cn codepoint should be 0x10ffff. If it's not, append the missing
+  # codepoints to Cn and C
+  cn_remainder = (data['Cn'].last.next..0x10ffff).to_a
+  data['Cn'] += cn_remainder
+  data['C'] += cn_remainder
+
+  # We now derive the character classes (POSIX brackets), e.g. [[:alpha:]]
+  #
+
+  # alnum    Letter | Mark | Decimal_Number
+  data['Alnum'] = data['L'] + data['M'] + data['Nd']
+
+  # alpha    Letter | Mark
+  data['Alpha'] = data['L'] + data['M']
+
+  # ascii    0000 - 007F
+  data['ASCII'] = (0..0x007F).to_a
+
+  # blank    Space_Separator | 0009
+  data['Blank'] = data['Zs'] + [0x0009]
+
+  # cntrl    Control
+  data['Cntrl'] = data['Cc']
+
+  # digit    Decimal_Number
+  data['Digit'] = data['Nd']
+
+  # lower    Lowercase_Letter
+  data['Lower'] = data['Ll']
+
+  # punct    Connector_Punctuation | Dash_Punctuation | Close_Punctuation |
+  #          Final_Punctuation | Initial_Punctuation | Other_Punctuation |
+  #          Open_Punctuation
+  # NOTE: This definition encompasses the entire P category, and the current
+  # mappings agree, but we explcitly declare this way to marry it with the above
+  # definition.
+  data['Punct'] = data['Pc'] + data['Pd'] + data['Pe'] + data['Pf'] +
+                  data['Pi'] + data['Po'] + data['Ps']
+
+  # space    Space_Separator | Line_Separator | Paragraph_Separator |
+  #               0009 | 000A | 000B | 000C | 000D | 0085
+  data['Space'] = data['Zs'] + data['Zl'] + data['Zp'] +
+                  [0x0009, 0x000A, 0x000B, 0x000C, 0x000D, 0x0085]
+
+  # upper    Uppercase_Letter
+  data['Upper'] = data['Lu']
+
+  # xdigit   0030 - 0039 | 0041 - 0046 | 0061 - 0066
+  #          (0-9, a-f, A-F)
+  data['XDigit'] = (0x0030..0x0039).to_a + (0x0041..0x0046).to_a +
+                   (0x0061..0x0066).to_a
+
+  # word     Letter | Mark | Decimal_Number | Connector_Punctuation
+  data['Word'] = data['L'] + data['M'] + data['Nd'] + data['Pc']
+
+  # graph    [[:^space:]] && ^Control && ^Unassigned && ^Surrogate
+  data['Graph'] = data['L'] + data['M'] + data['N'] + data['P'] + data['S']
+  data['Graph'] -= data['Space'] - data['C']
+
+  # print    [[:graph:]] | [[:space:]]
+  data['Print'] = data['Graph'] + data['Space']
+
+  # NEWLINE - This was defined in unicode.c
+  data['NEWLINE'] = [0x000a]
+
+  # Any - Defined in unicode.c
+  data['Any'] = (0x0000..0x10ffff).to_a
+
+  # Assigned - Defined in unicode.c; interpreted as every character in the
+  # Unicode range minus the unassigned characters
+  data['Assigned'] = data['Any'] - data['Cn']
+
+  # Returns General Category Property names and the data
+  [gcps, data]
+end
+
+
+def parse_scripts(file)
+  script = nil
+  data = []
+  names = []
+  IO.foreach(file) do |line|
+    if /^# Total code points: / =~ line
+      make_const(script, pair_codepoints(data), 'Script')
+      names << script
+      data = []
+    elsif /^([[:xdigit:]]+)(?:..([[:xdigit:]]+))?\s*;\s*(\w+)/ =~ line
+      script = $3
+      $2 ? data.concat(($1.to_i(16)..$2.to_i(16)).to_a) : data.push($1.to_i(16))
+    end
+  end
+  names
+end
+
+# make_const(property, pairs, name): Prints a 'static const' structure for a
+# given property, group of paired codepoints, and a human-friendly name for
+# the group
+def make_const(prop, pairs, name)
+  puts "\n/* '#{prop}': #{name} */"
+  puts "static const OnigCodePoint CR_#{prop}[] = {"
+  # The first element of the constant is the number of pairs of codepoints
+  puts "\t#{pairs.size},"
+  pairs.each do |pair|
+    pair.map! { |c|  c == 0 ? '0x0000' : sprintf("%0#6x", c) }
+    puts "\t#{pair.first}, #{pair.last},"
+  end
+  puts "}; /* CR_#{prop} */"
+end
+
+puts '%{'
+gcps, data = parse_unicode_data(ARGV[0])
+POSIX_NAMES.each do |name|
+  make_const(name, pair_codepoints(data[name]), "[[:#{name}:]]")
+end
+print "\n#ifdef USE_UNICODE_PROPERTIES"
+gcps.each do |name|
+  category =
+    case name.size
+    when 1 then 'Major Category'
+    when 2 then 'General Category'
+    else        '-'
+    end
+  make_const(name, pair_codepoints(data[name]), category)
+end
+scripts = parse_scripts(ARGV[1])
+puts "#endif /* USE_UNICODE_PROPERTIES */"
+
+puts "\n\nstatic const OnigCodePoint* const CodeRanges[] = {"
+POSIX_NAMES.each{|name|puts"  CR_#{name},"}
+puts "#ifdef USE_UNICODE_PROPERTIES"
+gcps.each{|name|puts"  CR_#{name},"}
+scripts.each{|name|puts"  CR_#{name},"}
+puts "#endif /* USE_UNICODE_PROPERTIES */"
+puts "};"
+
+puts(<<'__HEREDOC')
+struct uniname2ctype_struct {
+  int name, ctype;
+};
+
+static const struct uniname2ctype_struct *uniname2ctype_p(const char *, unsigned int);
+%}
+struct uniname2ctype_struct;
+%%
+__HEREDOC
+i = -1
+POSIX_NAMES.each  {|name|puts"%-21s %3d"%[name+',', i+=1]}
+puts "#ifdef USE_UNICODE_PROPERTIES"
+gcps.each{|name|puts"%-21s %3d"%[name+',', i+=1]}
+scripts.each{|name|puts"%-21s %3d"%[name+',', i+=1]}
+puts "#endif /* USE_UNICODE_PROPERTIES */\n"
+puts(<<'__HEREDOC')
+%%
+static int
+uniname2ctype(const UChar *name, unsigned int len)
+{
+  const struct uniname2ctype_struct *p = uniname2ctype_p((const char *)name, len);
+  if (p) return p->ctype;
+  return -1;
+}
+__HEREDOC