1 files changed, 136 insertions, 0 deletions
diff --git a/waflib/Tools/d_scan.py b/waflib/Tools/d_scan.py
new file mode 100644
index 0000000..09ccfa9
--- /dev/null
+++ b/waflib/Tools/d_scan.py
@@ -0,0 +1,136 @@
+#! /usr/bin/env python
+# encoding: utf-8
+# WARNING! Do not edit! https://waf.io/book/index.html#_obtaining_the_waf_file
+
+import re
+from waflib import Utils
+def filter_comments(filename):
+	txt=Utils.readf(filename)
+	i=0
+	buf=[]
+	max=len(txt)
+	begin=0
+	while i<max:
+		c=txt[i]
+		if c=='"'or c=="'":
+			buf.append(txt[begin:i])
+			delim=c
+			i+=1
+			while i<max:
+				c=txt[i]
+				if c==delim:
+					break
+				elif c=='\\':
+					i+=1
+				i+=1
+			i+=1
+			begin=i
+		elif c=='/':
+			buf.append(txt[begin:i])
+			i+=1
+			if i==max:
+				break
+			c=txt[i]
+			if c=='+':
+				i+=1
+				nesting=1
+				c=None
+				while i<max:
+					prev=c
+					c=txt[i]
+					if prev=='/'and c=='+':
+						nesting+=1
+						c=None
+					elif prev=='+'and c=='/':
+						nesting-=1
+						if nesting==0:
+							break
+						c=None
+					i+=1
+			elif c=='*':
+				i+=1
+				c=None
+				while i<max:
+					prev=c
+					c=txt[i]
+					if prev=='*'and c=='/':
+						break
+					i+=1
+			elif c=='/':
+				i+=1
+				while i<max and txt[i]!='\n':
+					i+=1
+			else:
+				begin=i-1
+				continue
+			i+=1
+			begin=i
+			buf.append(' ')
+		else:
+			i+=1
+	buf.append(txt[begin:])
+	return buf
+class d_parser(object):
+	def __init__(self,env,incpaths):
+		self.allnames=[]
+		self.re_module=re.compile("module\s+([^;]+)")
+		self.re_import=re.compile("import\s+([^;]+)")
+		self.re_import_bindings=re.compile("([^:]+):(.*)")
+		self.re_import_alias=re.compile("[^=]+=(.+)")
+		self.env=env
+		self.nodes=[]
+		self.names=[]
+		self.incpaths=incpaths
+	def tryfind(self,filename):
+		found=0
+		for n in self.incpaths:
+			found=n.find_resource(filename.replace('.','/')+'.d')
+			if found:
+				self.nodes.append(found)
+				self.waiting.append(found)
+				break
+		if not found:
+			if not filename in self.names:
+				self.names.append(filename)
+	def get_strings(self,code):
+		self.module=''
+		lst=[]
+		mod_name=self.re_module.search(code)
+		if mod_name:
+			self.module=re.sub('\s+','',mod_name.group(1))
+		import_iterator=self.re_import.finditer(code)
+		if import_iterator:
+			for import_match in import_iterator:
+				import_match_str=re.sub('\s+','',import_match.group(1))
+				bindings_match=self.re_import_bindings.match(import_match_str)
+				if bindings_match:
+					import_match_str=bindings_match.group(1)
+				matches=import_match_str.split(',')
+				for match in matches:
+					alias_match=self.re_import_alias.match(match)
+					if alias_match:
+						match=alias_match.group(1)
+					lst.append(match)
+		return lst
+	def start(self,node):
+		self.waiting=[node]
+		while self.waiting:
+			nd=self.waiting.pop(0)
+			self.iter(nd)
+	def iter(self,node):
+		path=node.abspath()
+		code="".join(filter_comments(path))
+		names=self.get_strings(code)
+		for x in names:
+			if x in self.allnames:
+				continue
+			self.allnames.append(x)
+			self.tryfind(x)
+def scan(self):
+	env=self.env
+	gruik=d_parser(env,self.generator.includes_nodes)
+	node=self.inputs[0]
+	gruik.start(node)
+	nodes=gruik.nodes
+	names=gruik.names
+	return(nodes,names)