removed ragel docs, old makefiles, todo, vim, etc

4 files changed, 1 insertions, 365 deletions

diff --git a/contrib/Makefile.am b/contrib/Makefile.am
index 7ef7e8d9..4c8ef12d 100644
--- a/contrib/Makefile.am
+++ b/contrib/Makefile.am
@@ -1,2 +1,2 @@
 
-EXTRA_DIST = ragel.make ragel.m4 unicode2ragel.rb
+EXTRA_DIST =
diff --git a/contrib/ragel.m4 b/contrib/ragel.m4
deleted file mode 100644
index e7b42425..00000000
--- a/contrib/ragel.m4
+++ /dev/null
@@ -1,53 +0,0 @@
-dnl Check for presence of the Ragel State Machine generator.
-dnl
-dnl This macro checks for the presence of the ragel tool in the system,
-dnl and whether the ragel tool is absolutely needed for a complete
-dnl build.
-dnl
-dnl To check for the need for Ragel, you have to provide the relative
-dnl path of a source file generated through Ragel: if the file is
-dnl present in the source tree, a missing ragel command will not cause
-dnl the configure to abort.
-
-AC_DEFUN([_RAGEL_VARS], [
-  AC_ARG_VAR([RAGEL], [Ragel generator command])
-  AC_ARG_VAR([RAGELFLAGS], [Ragel generator flags])
-])
-
-AC_DEFUN([CHECK_RAGEL], [
-  AC_REQUIRE([_RAGEL_VARS])
-  AC_CHECK_PROG([RAGEL], [ragel], [ragel], [no])
-
-  dnl We set RAGEL to false so that it would execute the "false"
-  dnl command if needed.
-  AS_IF([test x"$RAGEL" = x"no"],
-        [RAGEL=false],
-	AS_IF([test x"$2" != "x"],
-	      [ragel_version=`$RAGEL --version | sed -n -e '1s:.*version \(@<:@0-9@:>@\.@<:@0-9@:>@\)\(\.@<:@0-9@:>@\)* .*:\1:p'`
-	       ragel_version_compare=`echo $ragel_version | tr -d .`
-	       ragel_wanted_version=`echo $2 | tr -d .`
-	       AS_IF([test $ragel_version_compare -lt $ragel_wanted_version],
-	             [AC_MSG_WARN([Found Ragel $ragel_version but Ragel $2 requested])
-		      RAGEL=false
-		     ])
-	      ]))
-
-  dnl Only test the need if not found
-  AS_IF([test x"$RAGEL" = x"false"], [
-    AC_MSG_CHECKING([whether we need ragel to regenerate sources])
-    AS_IF([test -a "${srcdir}/$1"], [ragel_needed=no], [ragel_needed=yes])
-    AC_MSG_RESULT([$ragel_needed])
-
-    AS_IF([test x"$ragel_needed" = x"yes"],
-      [AC_MSG_ERROR([dnl
-You need Ragel to build from development sources.
-You can find Ragel at http://www.colm.net/open-source/ragel/dnl
-      ])])
-  ])
-])
-
-AC_DEFUN([CHECK_RAGEL_AM], [
-  CHECK_RAGEL([$1], [$2])
-
-  AM_CONDITIONAL([HAVE_RAGEL], [test x"$RAGEL" != x"false"])
-])
diff --git a/contrib/ragel.make b/contrib/ragel.make
deleted file mode 100644
index f7a71b5b..00000000
--- a/contrib/ragel.make
+++ /dev/null
@@ -1,6 +0,0 @@
-# -*- Makefile -*-

-

-SUFFIXES = .rl

-

-.rl.c:

-	$(RAGEL) $(RAGELFLAGS) -C $< -o $@

diff --git a/contrib/unicode2ragel.rb b/contrib/unicode2ragel.rb
deleted file mode 100644
index d64e601d..00000000
--- a/contrib/unicode2ragel.rb
+++ /dev/null
@@ -1,305 +0,0 @@
-#!/usr/bin/env ruby
-# 
-# This script uses the unicode spec to generate a Ragel state machine
-# that recognizes unicode alphanumeric characters.  It generates 5
-# character classes: uupper, ulower, ualpha, udigit, and ualnum.
-# Currently supported encodings are UTF-8 [default] and UCS-4.
-#
-# Usage: unicode2ragel.rb [options]
-#    -e, --encoding [ucs4 | utf8]     Data encoding
-#    -h, --help                       Show this message
-#
-# This script was originally written as part of the Ferret search
-# engine library.
-#
-# Author: Rakan El-Khalil <rakan@well.com>
-
-require 'optparse'
-require 'open-uri'
-
-ENCODINGS = [ :utf8, :ucs4 ]
-ALPHTYPES = { :utf8 => "unsigned char", :ucs4 => "unsigned int" }
-CHART_URL = "http://www.unicode.org/Public/5.1.0/ucd/DerivedCoreProperties.txt"
-
-###
-# Display vars & default option
-
-TOTAL_WIDTH = 80
-RANGE_WIDTH = 23
-@encoding = :utf8
-
-###
-# Option parsing
-
-cli_opts = OptionParser.new do |opts|
-  opts.on("-e", "--encoding [ucs4 | utf8]", "Data encoding") do |o|
-    @encoding = o.downcase.to_sym
-  end
-  opts.on("-h", "--help", "Show this message") do
-    puts opts
-    exit
-  end
-end
-
-cli_opts.parse(ARGV)
-unless ENCODINGS.member? @encoding
-  puts "Invalid encoding: #{@encoding}"
-  puts cli_opts
-  exit
-end
-
-##
-# Downloads the document at url and yields every alpha line's hex
-# range and description.
-
-def each_alpha( url, property ) 
-  open( url ) do |file|
-    file.each_line do |line|
-      next if line =~ /^#/;
-      next if line !~ /; #{property} #/;
-
-      range, description = line.split(/;/)
-      range.strip!
-      description.gsub!(/.*#/, '').strip!
-
-      if range =~ /\.\./
-           start, stop = range.split '..'
-      else start = stop = range
-      end
-
-      yield start.hex .. stop.hex, description
-    end
-  end
-end
-
-###
-# Formats to hex at minimum width
-
-def to_hex( n )
-  r = "%0X" % n
-  r = "0#{r}" unless (r.length % 2).zero?
-  r
-end
-
-###
-# UCS4 is just a straight hex conversion of the unicode codepoint.
-
-def to_ucs4( range )
-  rangestr  =   "0x" + to_hex(range.begin)
-  rangestr << "..0x" + to_hex(range.end) if range.begin != range.end
-  [ rangestr ]
-end
-
-##
-# 0x00     - 0x7f     -> 0zzzzzzz[7]
-# 0x80     - 0x7ff    -> 110yyyyy[5] 10zzzzzz[6]
-# 0x800    - 0xffff   -> 1110xxxx[4] 10yyyyyy[6] 10zzzzzz[6]
-# 0x010000 - 0x10ffff -> 11110www[3] 10xxxxxx[6] 10yyyyyy[6] 10zzzzzz[6] 
-
-UTF8_BOUNDARIES = [0x7f, 0x7ff, 0xffff, 0x10ffff]
-
-def to_utf8_enc( n )
-  r = 0
-  if n <= 0x7f
-    r = n
-  elsif n <= 0x7ff
-    y = 0xc0 | (n >> 6)
-    z = 0x80 | (n & 0x3f)
-    r = y << 8 | z
-  elsif n <= 0xffff
-    x = 0xe0 | (n >> 12)
-    y = 0x80 | (n >>  6) & 0x3f
-    z = 0x80 |  n        & 0x3f
-    r = x << 16 | y << 8 | z
-  elsif n <= 0x10ffff
-    w = 0xf0 | (n >> 18)
-    x = 0x80 | (n >> 12) & 0x3f
-    y = 0x80 | (n >>  6) & 0x3f
-    z = 0x80 |  n        & 0x3f
-    r = w << 24 | x << 16 | y << 8 | z
-  end
-
-  to_hex(r)
-end
-
-def from_utf8_enc( n )
-  n = n.hex
-  r = 0
-  if n <= 0x7f
-    r = n
-  elsif n <= 0xdfff
-    y = (n >> 8) & 0x1f
-    z =  n       & 0x3f
-    r = y << 6 | z
-  elsif n <= 0xefffff
-    x = (n >> 16) & 0x0f
-    y = (n >>  8) & 0x3f
-    z =  n        & 0x3f
-    r = x << 10 | y << 6 | z
-  elsif n <= 0xf7ffffff
-    w = (n >> 24) & 0x07
-    x = (n >> 16) & 0x3f
-    y = (n >>  8) & 0x3f
-    z =  n        & 0x3f
-    r = w << 18 | x << 12 | y << 6 | z
-  end
-  r
-end
-
-###
-# Given a range, splits it up into ranges that can be continuously
-# encoded into utf8.  Eg: 0x00 .. 0xff => [0x00..0x7f, 0x80..0xff]
-# This is not strictly needed since the current [5.1] unicode standard
-# doesn't have ranges that straddle utf8 boundaries.  This is included
-# for completeness as there is no telling if that will ever change.
-
-def utf8_ranges( range )
-  ranges = []
-  UTF8_BOUNDARIES.each do |max|
-    if range.begin <= max
-      return ranges << range if range.end <= max
-
-      ranges << range.begin .. max
-      range = (max + 1) .. range.end
-    end
-  end
-  ranges
-end
-
-def build_range( start, stop )
-  size = start.size/2
-  left = size - 1
-  return [""] if size < 1
-
-  a = start[0..1]
-  b = stop[0..1]
-
-  ###
-  # Shared prefix
-
-  if a == b
-    return build_range(start[2..-1], stop[2..-1]).map do |elt|
-      "0x#{a} " + elt
-    end
-  end
-
-  ###
-  # Unshared prefix, end of run
-
-  return ["0x#{a}..0x#{b} "] if left.zero?
-  
-  ###
-  # Unshared prefix, not end of run
-  # Range can be 0x123456..0x56789A
-  # Which is equivalent to:
-  #     0x123456 .. 0x12FFFF
-  #     0x130000 .. 0x55FFFF
-  #     0x560000 .. 0x56789A
-
-  ret = []
-  ret << build_range(start, a + "FF" * left)
-
-  ###
-  # Only generate middle range if need be.
-
-  if a.hex+1 != b.hex
-    max = to_hex(b.hex - 1)
-    max = "FF" if b == "FF"
-    ret << "0x#{to_hex(a.hex+1)}..0x#{max} " + "0x00..0xFF " * left
-  end
-
-  ###
-  # Don't generate last range if it is covered by first range
-  
-  ret << build_range(b + "00" * left, stop) unless b == "FF"
-  ret.flatten!
-end
-
-def to_utf8( range )
-  utf8_ranges( range ).map do |r|    
-    build_range to_utf8_enc(r.begin), to_utf8_enc(r.end) 
-  end.flatten!
-end
-
-##
-# Perform a 3-way comparison of the number of codepoints advertised by
-# the unicode spec for the given range, the originally parsed range,
-# and the resulting utf8 encoded range.
-
-def count_codepoints( code )
-  code.split(' ').inject(1) do |acc, elt|
-    if elt =~ /0x(.+)\.\.0x(.+)/
-      if @encoding == :utf8
-        acc * (from_utf8_enc($2) - from_utf8_enc($1) + 1)
-      else
-        acc * ($2.hex - $1.hex + 1)
-      end
-    else
-      acc
-    end
-  end
-end
-
-def is_valid?( range, desc, codes )
-  spec_count  = 1
-  spec_count  = $1.to_i if desc =~ /\[(\d+)\]/
-  range_count = range.end - range.begin + 1
-
-  sum = codes.inject(0) { |acc, elt| acc + count_codepoints(elt) }
-  sum == spec_count and sum == range_count
-end
-
-##
-# Generate the state maching to stdout
-
-def generate_machine( name, property )
-  pipe = " "
-  puts "    #{name} = "
-  each_alpha( CHART_URL, property ) do |range, desc|
-
-    codes = (@encoding == :ucs4) ? to_ucs4(range) : to_utf8(range)
-
-    raise "Invalid encoding of range #{range}: #{codes.inspect}" unless 
-      is_valid? range, desc, codes
-
-    range_width = codes.map { |a| a.size }.max
-    range_width = RANGE_WIDTH if range_width < RANGE_WIDTH
-
-    desc_width  = TOTAL_WIDTH - RANGE_WIDTH - 11
-    desc_width -= (range_width - RANGE_WIDTH) if range_width > RANGE_WIDTH
-
-    if desc.size > desc_width
-      desc = desc[0..desc_width - 4] + "..."
-    end
-
-    codes.each_with_index do |r, idx|
-      desc = "" unless idx.zero?
-      code = "%-#{range_width}s" % r
-      puts "      #{pipe} #{code} ##{desc}"
-      pipe = "|"
-    end
-  end
-  puts "      ;"
-  puts ""
-end
-
-puts <<EOF
-# The following Ragel file was autogenerated with #{$0} 
-# from: #{CHART_URL}
-#
-# It defines ualpha, udigit, ualnum.
-#
-# To use this, make sure that your alphtype is set to #{ALPHTYPES[@encoding]},
-# and that your input is in #{@encoding}.
-
-%%{
-    machine WChar;
-EOF
-generate_machine( :ualpha, "Alphabetic" )
-generate_machine( :ulower, "Lowercase" )
-generate_machine( :uupper, "Uppercase" )
-puts <<EOF
-    udigit = '0'..'9';
-    ualnum = ualpha | udigit;
-}%%
-EOF