75 lines
3.2 KiB
Bash
Executable File
75 lines
3.2 KiB
Bash
Executable File
#!/bin/sh
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script_dir=$(CDPATH="" cd -- "$(dirname -- "$0")" && pwd)
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awk_dir="$script_dir/awk"
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sed_inplace() {
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script="$1"
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file="$2"
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tmp="${file}.tmp.$$"
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if sed "$script" "$file" > "$tmp" && mv "$tmp" "$file"; then
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return 0
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else
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rm -f "$tmp"
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return 1
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fi
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}
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temp_file="${KEWT_TMPDIR:-/tmp}/markdown.$$.md"
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cat "$@" > "$temp_file"
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trap 'rm -f "$temp_file" "$temp_file.tmp" "$temp_file.fm"' EXIT INT TERM
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# Frontmatter
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fm_file="$temp_file.fm"
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: > "$fm_file"
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awk -v fm_out="$fm_file" -f "$awk_dir/frontmatter.awk" "$temp_file" > "$temp_file.tmp" && mv "$temp_file.tmp" "$temp_file"
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# Mask
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awk -f "$awk_dir/mask_inline_code.awk" "$temp_file" > "$temp_file.tmp" && mv "$temp_file.tmp" "$temp_file"
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awk -f "$awk_dir/mask_plain.awk" "$temp_file" > "$temp_file.tmp" && mv "$temp_file.tmp" "$temp_file"
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# Reference links
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refs=$(cat "$@" | awk '/^\[[^\]]+\]: */')
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IFS='
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'
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for ref in $refs; do
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ref_id=$(echo "$ref" | sed 's/^\[\(.*\)\]: .*/\1/')
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ref_url=$(echo "$ref" | sed 's/^\[.*\]: \([^ ]*\).*/\1/')
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ref_title=$(echo "$ref" | sed -n 's/^\[.*\]: [^ ]* "\(.*\)"/\1/p' | sed 's@|@!@g')
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sed_inplace "s|!\[\([^]]*\)\]\[$ref_id\]|<img src=\"$ref_url\" title=\"$ref_title\" alt=\"\1\" />|g" "$temp_file"
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sed_inplace "s|\[\([^]]*\)\]\[$ref_id\]|<a href=\"$ref_url\" title=\"$ref_title\">\1</a>|g" "$temp_file"
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sed_inplace "s|!\[$ref_id\]\[\]|<img src=\"$ref_url\" title=\"$ref_title\" alt=\"$ref_id\" />|g" "$temp_file"
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sed_inplace "s|\[$ref_id\]\[\]|<a href=\"$ref_url\" title=\"$ref_title\">$ref_id</a>|g" "$temp_file"
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done
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sed_inplace "/^\[[^\]]*\]: */d" "$temp_file"
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# Blocks
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loop_count=0
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max_iterations=100
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while grep '^>' "$temp_file" >/dev/null; do
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awk -f "$awk_dir/blockquote.awk" "$temp_file" > "$temp_file.tmp" && mv "$temp_file.tmp" "$temp_file"
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loop_count=$((loop_count + 1))
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if [ "$loop_count" -gt "$max_iterations" ]; then
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echo "Warning: Blockquote processing exceeded $max_iterations iterations on $1. Breaking to prevent infinite loop." >&2
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break
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fi
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done
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awk -v custom_admonitions="$CUSTOM_ADMONITIONS" -f "$awk_dir/blockquote_to_admonition.awk" "$temp_file" > "$temp_file.tmp" && mv "$temp_file.tmp" "$temp_file"
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awk -f "$awk_dir/fenced_code.awk" "$temp_file" > "$temp_file.tmp" && mv "$temp_file.tmp" "$temp_file"
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awk -f "$awk_dir/indented_code.awk" "$temp_file" > "$temp_file.tmp" && mv "$temp_file.tmp" "$temp_file"
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awk -f "$awk_dir/pipe_tables.awk" "$temp_file" > "$temp_file.tmp" && mv "$temp_file.tmp" "$temp_file"
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awk -v enable_header_links="$ENABLE_HEADER_LINKS" -f "$awk_dir/headers.awk" "$temp_file" > "$temp_file.tmp" && mv "$temp_file.tmp" "$temp_file"
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awk -f "$awk_dir/lists.awk" "$temp_file" > "$temp_file.tmp" && mv "$temp_file.tmp" "$temp_file"
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# Spacing
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awk -f "$awk_dir/breaks.awk" "$temp_file" > "$temp_file.tmp" && mv "$temp_file.tmp" "$temp_file"
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awk -f "$awk_dir/paragraphs.awk" "$temp_file" > "$temp_file.tmp" && mv "$temp_file.tmp" "$temp_file"
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# Inline styles
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awk -f "$awk_dir/markdown_inline.awk" "$temp_file" > "$temp_file.tmp" && mv "$temp_file.tmp" "$temp_file"
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awk -v input_file="$1" -v site_root="$MARKDOWN_SITE_ROOT" -v fallback_file="$MARKDOWN_FALLBACK_FILE" -f "$awk_dir/markdown_embed.awk" "$temp_file"
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rm "$temp_file"
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