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Simple email template tags
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| from string import Template | |
| class DefaultTemplateTag(Template): | |
| delimiter = '{{' | |
| pattern = ''' | |
| \{\{(?: | |
| (?P<escaped>\{\{)| | |
| (?P<named>[_a-z][_a-z0-9]*)\}\}| | |
| (?P<braced>[_a-z][_a-z0-9]*)\}\}| | |
| (?P<invalid>) | |
| ) | |
| ''' | |
| class SimpleEmailTags: | |
| def __init__(self, template=DefaultTemplateTag): | |
| self.template = template | |
| def _open_file(self, file_name): | |
| with open(file_name) as file: | |
| return file.read() | |
| def _load_tags(self, html_string, tags): | |
| return self.template(html_string).safe_substitute(tags) | |
| def as_str(self, file_name, tags): | |
| if not file_name and tags: | |
| raise Exception('file and tags argument must be not None') | |
| html_string = self._open_file(file_name) | |
| return self._load_tags(html_string, tags) | |
| """ | |
| Usage: | |
| content of base.html file: | |
| <!DOCTYPE html> | |
| <html> | |
| <body> | |
| <h1>Meu chamo {{nome}}</h1> | |
| <p>Tenho {{idade}}</p> | |
| </body> | |
| </html> | |
| >> content = SimpleEmailTags() | |
| >> content.as_str('base.html', tag={'nome': 'Marcelo', 'idade': '33 anos'}) | |
| >> '<!DOCTYPE html>\n<html>\n\n<body>\n\n <h1>Meu chamo Marcelo</h1>\n <p>Tenho 33 anos</p>\n\n</body>\n\n</html>' | |
| """ |
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