1 files changed, 61 insertions, 0 deletions
diff --git a/src/boost/tools/litre/litre.py b/src/boost/tools/litre/litre.py
new file mode 100644
index 000000000..c0ac67e28
--- /dev/null
+++ b/src/boost/tools/litre/litre.py
@@ -0,0 +1,61 @@
+from docutils import writers
+from docutils import nodes
+
+class LitreTranslator(nodes.GenericNodeVisitor):
+
+    def __init__(self, document, config):
+        nodes.GenericNodeVisitor.__init__(self,document)
+        self._config = config
+        
+    def default_visit(self, node):
+        pass
+        # print '**visiting:', repr(node)
+
+    def default_departure(self, node):
+        pass
+        # print '**departing:', repr(node)
+
+    def visit_raw(self, node):
+        if node.has_key('format'):
+            key = node['format'].lower()
+            if key == 'litre':
+                # This is probably very evil ;-)
+                #if node.has_key('source'):
+                #    node.file = node.attributes['source']
+                    
+                self._handle_code(node, node.astext())
+                
+        raise nodes.SkipNode
+
+    def visit_comment(self, node):
+        code = node.astext()
+        if code[0] == '@':
+            self._handle_code(node, code[1:].strip())
+                              
+    def _handle_code(self, node, code):
+        start_line = node.line or 0
+        start_line -= code.count('\n') + 2  # docutils bug workaround?
+        try:
+            self._execute(compile( start_line*'\n' + code, str(node.source), 'exec'))
+        except:
+            print '\n------- begin offending Python source -------'
+            print code            
+            print '------- end offending Python source -------'
+            raise
+            
+    def _execute(self, code):
+        """Override this to set up local variable context for code before
+        invoking it
+        """
+        eval(code)
+        
+class Writer(writers.Writer):
+    translator = LitreTranslator
+    _config = None
+    
+    def translate(self):
+        visitor = self.translator(self.document, self._config)
+        self.document.walkabout(visitor)
+        self.output = visitor.astext()
+
+