""" md ## Usage Once this plugin is [installed](../drone_install.md), in your `mkdocs.yml` file just replace the plugin name `simple` with `semiliterate`. It accepts all of the same parameters, so `mkdocs` will still work as before, and you will have immediate access to all of the following extensions. (Note that this documentation assumes a familiarity with the [usage](https://athackst.github.io/mkdocs-simple-plugin/mkdocs_simple_plugin/plugin/) of the `simple` plugin.) """ from mkdocs import utils from mkdocs.config import config_options from mkdocs_simple_plugin.plugin import SimplePlugin, StreamExtract import re import yaml class StreamInclusion(StreamExtract): """ md An extension of the StreamExtract class which adds ### Inclusion syntax While extracting content from a file (because it matches one of the `semiliterate` patterns, rather than just one of the `include_extensions`), an unescaped expression of the form `{! FILENAME YAML !}` (which may span multiple lines) will trigger file inclusion. The FILENAME may be a bare word, in which case it cannot contain whitespace, or it may be enclosed in single or double quotes. Note that FILENAME is interpreted relative to the directory in which the file containing the `{! .. !}` expression resides. The YAML is interpreted exactly as the extraction options to a `semiliterate` item as [documented](https://athackst.github.io/mkdocs-simple-plugin/mkdocs_simple_plugin/plugin/index.html#plugin_usage) for the `simple` extension. The text extracted from FILENAME is interpolated at the current location in the file currently being written. Recursive inclusion is supported. Note that the `{! ... !}` directive must be in lines that semiliterate would normally copy. That is, it does not examine lines before the `start` regexp is encountered, or after the `terminate` regexp, or between instances of `stop` and `start`. It also doesn't check any text written from lines that match these special expressions. Moreover, on such normally-transcribed lines, it's the text **after** the application of any semiliterate `replace`ments that is checked for `{! ... !}`. """ def __init__(self, input_stream, output_stream, **kwargs): """ md ### Adjusted semiliterate options The `start` regular-expression parameter to a `semiliterate` file-inclusion pattern is now optional. If omitted, it means that extraction begins immediately with the first line of a file; in this case, `pause` and `terminate` retain their usual meanings, although there is not currently any way to resume from a `pause` when `start` is not specified. This adjustment to `semiliterate` parameters makes it easier to extract "front-matter" style documentation from files. It also means that a plain `{! file.md !}` directive will simply incorporate the full contents of `file.md`. """ start_hot = False if 'start' not in kwargs: kwargs['start'] = 'dummy' start_hot = True super().__init__(input_stream, output_stream, **kwargs) if start_hot: self.extracting = True self.start = False include_open = re.compile(r'''(?.*?)\1\s+(?P[\s\S]*?)\s?\!\}''') include_bare_file = re.compile(r'\s(?P.*?)\s+(?P[\s\S]*?)\s?\!\}') def extract_line(self, line): """Copy line to the output stream, applying all specified replacements and handling inclusion syntax. """ line = self.replace_line(line) include_match = StreamInclusion.include_open.search(line) if not include_match: self.transcribe(line) return # OK, we have found (the start of) an inclusion and must process it preamble = line[:include_match.start()] remainder = line[include_match.end(1):] body_pattern = StreamInclusion.include_quoted_file if include_match[2].isspace(): body_pattern = StreamInclusion.include_bare_file body_match = body_pattern.search(remainder) if not body_match: for extra_line in self.input_stream: remainder += self.replace_line(extra_line) body_match = body_pattern.search(remainder) if body_match: break if not body_match: errmsg = "semiliterate: End of file while scanning for `!}`" utils.log.error(errmsg) raise EOFError(errmsg) include_path = self.include_root + '/' + body_match['fn'] new_root = re.match(r'(.*)/', include_path)[1] try: include_parameters = yaml.safe_load(body_match['yml']) except Exception as err: newmsg = (f"While attempting to include '{include_path}', could" + f" not parse yaml '{body_match['yml']}'.") if hasattr(err, 'message'): raise SyntaxError( f"{newmsg} YAML parser reports: {err.message}") raise SyntaxError(f"{newmsg} Caught exception: {str(err)}") if not include_parameters: include_parameters = {} with open(include_path) as include_file: self.transcribe(preamble) inclusion = StreamInclusion( include_file, self.output_stream, include_root=new_root, **include_parameters) if inclusion.extract(): self.wrote_something = True self.transcribe(remainder[body_match.end():]) class SemiliteratePlugin(SimplePlugin): r""" md An extension of the mkdocs-simple-plugin In addition, block-comment markdown `/** md` ... `**/` is by default scanned for in all files with an extension, as it's valid in so many disparate languages. ### Additional plugin parameters `semiliterate` adds a couple of new plugin parameters to further tailor its behavior as compared to `simple`. They are described in this section, with default values in parentheses at the beginning of each entry. {! plugin.py --- start: '[*]altered_config_scheme' terminate: '^\s*\)' replace: - ["\\('(.*)',\\s*$", '\1\n'] - ['config_options.Type.*?default=([^\)]*)', ': (\1)'] - '^\s*#(.*\s*)$' !} """ super_sdict = dict(SimplePlugin.config_scheme) super_semi_dflt = super_sdict['semiliterate'].default semi_dflt = [b if r'\*' not in b['stop'] else dict(b, pattern=r'\.') for b in super_semi_dflt] altered_config_scheme = dict( super_sdict, semiliterate=config_options.Type(list, default=semi_dflt)).items() config_scheme = ( # Note documentation of each new parameter **follows** the parameter. *altered_config_scheme, ('copy_standard_markdown', config_options.Type(bool, default=False)), # Whether to add MkDocs' list of standard Markdown extensions to the # `include_extensions` parameter so that Markdown files will be # directly copied to the docsite. Note that the `simple` behavior # corresponds to a _true_ value for `copy_standard_markdown`, but # `semiliterate` still incorporates all standard Markdown files # because of the following `extract_standard_markdown` parameter. ('extract_standard_markdown', config_options.Type(dict, default={})), # If the `enable` key of this dict parameter is true # (it defaults to the opposite of `copy_standard_markdown`), # it adds a semiliterate block causing extraction (and hence # include-directive processing) from all standard Markdown files # (as defined by MkDocs). The remaining keys of this parameter are # included as parameters of that semiliterate block. Thus, the # default values of the parameters arrange for Markdown files to be # copied "as-is", except possibly for embedded inclusions. # On the other hand, setting this parameter to `{enable: false}` # (which is also the default when `copy_standard_markdown` is true) # will prevent automatic extraction from standard Markdown files. ('report_docs_build', config_options.Type(bool, default=False)) # If true, the name of the temporary directory to which generated docs # files are copied/extracted will be written to standard output # (even if the `-v` verbose option to mkdocs is not specified). ) def build_docs(self): if self.config['report_docs_build']: utils.log.info( f"semiliterate: generating docs in {self.build_docs_dir}") dflt_enable = False if not self.config['copy_standard_markdown']: self.include_extensions = self.config['include_extensions'] dflt_enable = True if self.config['extract_standard_markdown'].get('enable', dflt_enable): ext_pat = '|'.join(re.escape(s) for s in utils.markdown_extensions) self.semiliterate.append(dict( pattern=re.compile(f"^(.*(?:{ext_pat}))$"), destination=r'\1', **self.config['extract_standard_markdown'])) return super().build_docs() def try_extraction(self, original_file, root, new_file, **kwargs): extraction = StreamInclusion( original_file, new_file, include_root=root, **kwargs) return extraction.extract()