| 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() |
| |
| |
