B KZ @sHdZddlmZmZddlZddlmZddlmZGdddeZ dS) zThis preprocessor detect cells using a different language through magic extensions such as `%%R` or `%%octave`. Cell's metadata is marked so that the appropriate highlighter can be used in the `highlight` filter. )print_functionabsolute_importN) Preprocessor)Dictc sbeZdZdZedddddddd d d d Zed djddZdfdd ZddZ ddZ Z S)HighlightMagicsPreprocessorzQ Detects and tags code cells that use a different languages than Python. rZbashZcythonZ javascriptZjuliaZlatexZoctaveZperlZrubyZsh) z%%Rz%%bashz%%cythonz %%javascriptz%%juliaz%%latexz%%octavez%%perlz%%rubyz%%shzSyntax highlighting for magic's extension languages. Each item associates a language magic extension such as %%R, with a pygments lexer such as r.)helpT)configNc sNtt|jfd|i||j|jd|j}t d ||_ dS)zPublic constructorr |z ^\s*({0})\s+N) superr__init__default_languagesupdate languagesjoinkeysrecompileformatre_magic_language)selfr kwZ any_language) __class__Flib/python3.7/site-packages/nbconvert/preprocessors/highlightmagics.pyr ,s z$HighlightMagicsPreprocessor.__init__cCs(|j|}|r |j|dSdSdS)a( When a cell uses another language through a magic extension, the other language is returned. If no language magic is detected, this function returns None. Parameters ---------- source: str Source code of the cell to highlight rN)rmatchrgroup)rsourcemrrrwhich_magic_language:s z0HighlightMagicsPreprocessor.which_magic_languagecCs.|jdkr&||j}|r&||dd<||fS)a Tags cells using a magic extension language Parameters ---------- cell : NotebookNode cell Notebook cell being processed resources : dictionary Additional resources used in the conversion process. Allows preprocessors to pass variables into the Jinja engine. cell_index : int Index of the cell being processed (see base.py) codeZmetadataZmagics_language)Z cell_typer r)rZcellZ resourcesZ cell_indexZmagic_languagerrrpreprocess_cellOs    z+HighlightMagicsPreprocessor.preprocess_cell)N) __name__ __module__ __qualname____doc__rrtagrr r r" __classcell__rr)rrrs$ r) r&Z __future__rrrbaserZ traitletsrrrrrrs