pandoc filter does not read metadata - not a valid json value
问题 The filter copied from https://pandoc.org/filters.html and run with pandoc -f markdown -t markdown --filter filterUmlaut -o test1.md coronatest.md produces the error Failed reading: not a valid json value at 'input---ntitle:TheFutureofAAn...nn##secondlevelntextfornothingn' which is the metadata at the beginning of coronatest.md . The file can be run with the same command without the filter option: pandoc -f markdown -t markdown -o test1.md coronatest.md What do I miss? 来源: https:/