B Z[@sdZddlmZmZddlZddlZddlZddlmZm Z ddl m Z ddl m Z mZddlmZd Zd Zdd d ZddZddZGdddeZddZdadS)zUtility for calling pandoc)print_functionabsolute_importN) TextIOWrapperBytesIO) check_version) cast_byteswhich)ConversionExceptionz1.12.1z2.0.0utf-8c Cshdd|d|g}|r||ttj|tjtjd}|t||\}}tt||d }| dS)aGConvert an input string using pandoc. Pandoc converts an input string `from` a format `to` a target format. Parameters ---------- source : string Input string, assumed to be valid format `from`. fmt : string The name of the input format (markdown, etc.) to : string The name of the output format (html, etc.) Returns ------- out : unicode Output as returned by pandoc. Raises ------ PandocMissing If pandoc is not installed. Any error messages generated by pandoc are printed to stderr. pandocz-fz-t)stdinstdoutreplace ) extendcheck_pandoc_version subprocessPopenPIPEZ communicaterrrreadrstrip) sourceZfmttoZ extra_argsencodingcmdpout_r5lib/python3.7/site-packages/nbconvert/utils/pandoc.pyr s r cCshtdkrdtdsttddg}|}td}x,|ddd D]}| |rL|aPqLWtS)a{Gets the Pandoc version if Pandoc is installed. If the minimal version is not met, it will probe Pandoc for its version, cache it and return that value. If the minimal version is met, it will return the cached version and stop probing Pandoc (unless :func:`clean_cache()` is called). Raises ------ PandocMissing If pandoc is unavailable. Nr z-vz^\d+(\.\d+){1,}$rasciir) __versionr PandocMissingrZ check_output splitlinesrecompiledecodesplitmatch)rZ out_linesZversion_patterntokrrr get_pandoc_version=s  r+cCs`t}|dkr"tjdtdddSt|ttd}|s\tjd|dtd td tdd|S) zReturns True if pandoc's version meets at least minimal version. Raises ------ PandocMissing If pandoc is unavailable. NzSorry, we cannot determine the version of pandoc. Please consider reporting this issue and include theoutput of pandoc --version. Continuing...) stacklevelF)Zmax_vz5You are using an unsupported version of pandoc (%s). z#Your version must be at least (%s) zbut less than (%s). zERefer to http://pandoc.org/installing.html. Continuing with doubts...)r+warningswarnRuntimeWarningr_minimal_version_maximal_version)vokrrr rYs  rcs eZdZdZfddZZS)r#z(Exception raised when Pandoc is missing.cstt|ddS)Nz]Pandoc wasn't found. Please check that pandoc is installed: http://pandoc.org/installing.html)superr#__init__)selfargskwargs) __class__rr r6vs zPandocMissing.__init__)__name__ __module__ __qualname____doc__r6 __classcell__rr)r:r r#tsr#cCsdadS)N)r"rrrr clean_cache~sr@)Nr )r>Z __future__rrrr.r%iorrZnbconvert.utils.versionrZipython_genutils.py3compatrr exceptionsr r1r2r r+rr#r@r"rrrr s    )