categories.md

m4TITLE({"Posts by Category"})

Posts by Category

m4_esyscmd({" awk ' BEGIN { FS="\t" } { file=$1; sub(/.md$/, ".html", file) title=$3 split($4, categories, ", ")

file_index[file] = title

for (c in categories) {
    cate_index[categories[c]][file] = title
}

}

END { asorti(cate_index, cate_index_sorted)

for (j in cate_index_sorted) {
    catname = cate_index_sorted[j]
    printf("\n## %s\n\n", catname == "" ? "Uncategorized" : catname)

    asorti(cate_index[catname], cat_sorted)
    for (k = length(cat_sorted); k > 0; k -= 1) {
        fpath = cat_sorted[k]
        ftitle = file_index[fpath]
        printf("- [%s](%s)\n", ftitle, fpath)
    }
}

} ' < _metadata_cache "})