A couple really minor tweaks to metasm samples and code

git-svn-id: file:///home/svn/framework3/trunk@13217 4d416f70-5f16-0410-b530-b9f4589650da

lib/metasm/metasm/compile_c.rb

@@ -663,7 +663,7 @@ module C
 					if not init.op and init.rexpr.kind_of? ::String
 						v = Variable.new
 						v.storage = :static
-						v.name = 'char_' + init.rexpr.tr('^a-zA-Z', '')[0, 8]
+						v.name = 'char_' + init.rexpr.gsub(/[^a-zA-Z]/, '')[0, 8]
 						v.type = Array.new(type.type)
 						v.type.length = init.rexpr.length + 1
 						v.type.type.qualifier = [:const]
@@ -1434,3 +1434,4 @@ module C
 	end
 end
 end
+

lib/metasm/metasm/preprocessor.rb

@@ -1095,7 +1095,7 @@ class Preprocessor
 			nil while dir = readtok and dir.type == :space
 			raise cmd, 'qstring expected' if not dir or dir.type != :quoted
 			dir = ::File.expand_path dir.value
-			raise cmd, 'invalid path' if not ::File.directory? dir
+			raise cmd, "invalid path #{dir}" if not ::File.directory? dir
 			@include_search_path.unshift dir
 
 		when 'push_macro', 'pop_macro'

lib/metasm/samples/factorize-headers-peimports.rb

@@ -41,13 +41,18 @@ if opts[:vspath] ||= ARGV.shift
 end
 
 funcnames = opts[:exe].map { |e|
-	pe = PE.decode_file_header(e)
-	pe.decode_imports
-	if not pe.imports
+	pe = PE.decode_file_header(e) rescue nil
+	
+	pe.decode_imports if pe 
+	if pe and not pe.imports
 		puts "#{e} has no imports"
 		next
 	end
+	if pe 
 		pe.imports.map { |id| id.imports.map { |i| i.name } }
+	else
+		[]
+	end
 }.flatten.compact.uniq.sort
 
 ARGV.each { |n|