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|
#!/usr/bin/ruby1.9.1
require "pp"
$regname = ARGV[0]
$mode = :def
re = %r<(?x)
^
\s*
(?:
(?'start'\d{1,2})
(?:\s+|\s*:\s*)
(?'stop'\d{1,2})
|
(?'something'\d{1,4})
)?
\s+
(?'acronym'[\w\d_]+?)?
\s*
$
>
current = start = stop = nil
def valid_bitnumber(current, new)
return (new == 31 or new == 15 or new == 7) if not current
return current == new
end
def warning(current, start, line)
expected = current
expected ||= "7, 15 or 31"
$stderr.puts "WARNING: Expected bit #{expected} but got bit #{start} in line \"#{line.chomp}\""
end
total_width = 0
acronym_begin = nil
# First pass: get lines
lines = []
lines << $_ until STDIN.gets.chomp.empty?
# Second pass: parse lines
lines2 = []
lines.each do |line|
m = re.match line
if not m
$stderr.puts "WARNING: Invalid line: #{line}"
next
end
start = stop = nil
if m[:start]
start = m[:start].to_i
if not valid_bitnumber(current, start)
warning current, start, line
end
stop = m["stop"].to_i
elsif m[:something]
start = m[:something].to_i
if not valid_bitnumber(current, start)
start, stop = m[:something].scan(/^(\d{1,2})(\d{1,2})$/).first
start, stop = start.to_i, stop.to_i
start, stop = stop, start if start < stop
if not valid_bitnumber(current, start)
warning current, start, line
end
else
stop = start
end
end
if start and stop
current = stop - 1
width = start - stop + 1
total_width += width
end
lines2 << {
:line => line,
:acronym => (m[:acronym] or "") ,
:start => start,
:stop => stop,
:width => width
}
end
# Third pass: assemble cut up field names
lines3 = []
lines2.length.times do |i|
if lines2[i][:start] and lines2[i][:stop]
lines3 << lines2[i]
else
prev = lines3[-1]
cur = lines2[i]
next_ = lines2[i+1]
if prev and next_
puts "WARNING: the copy-paste resulte is ambiguous:"
puts "----"
print prev[:line]
print cur[:line]
print next_[:line]
puts "----"
puts "Are the field names"
print ' (1) "'
print prev[:acronym] + cur[:acronym]
print '" and "'
print next_[:acronym]
puts '"'
print ' (2) "'
print prev[:acronym]
print '" and "'
print cur[:acronym] + next_[:acronym]
puts '"'
num = nil
loop do
print "Choice: "
num = STDIN.gets.to_i
break if num == 1 or num == 2
end
if num == 1
prev[:acronym] = prev[:acronym] + cur[:acronym]
else
next_[:acronym] = cur[:acronym] + next_[:acronym]
end
elsif prev
prev[:acronym] = prev[:acronym] + cur[:acronym]
elsif next_
next_[:acronym] = cur[:acronym] + next_[:acronym]
else
puts "WARNING: WTF? line #{i} has no prev nor next line"
pp lines
pp lines2
pp lines3
end
end
end
lines3.each do |line|
acronym, start, stop, width = line[:acronym], line[:start], line[:stop], line[:width]
name = (acronym =~ /reserved|rsvd/i ? "" : ($regname ? $regname + "_" : "") + acronym)
if $mode == :struct
tabs = "\t" * [2 - name.length / 8, 0].max
puts "\t#{name}#{tabs}:#{width},"
elsif $mode == :def
if name != ""
tabs = "\t" * [2 - name.length / 8, 1].max
puts "#define #{name}#{tabs}#{stop}"
end
end
end
if total_width != 8 and total_width != 16 and total_width != 32
$stderr.puts "WARNING: Total register width is #{total_width} bits"
end
|
