h-entry-pickup

#!/bin/sh

USE_SED=
for arg in "$@" ; do
    case $arg in
        detail  )
            PICK_TAGS='<(title|updated|published|app:edited|app:draft|author)>|<(link|category|summary) '
            ;;
        simple  )
            PICK_TAGS='<(title|published|app:draft|author)>|<(link|category) '
            ;;
        entry   )
            PICK_TAGS='/<entry>/,/<\/entry>/'
            USE_SED=true
            ;;
        content )
            PICK_TAGS='/<content /,/<\/content>/'
            USE_SED=true
            ;;
        formated)
            PICK_TAGS='/<hatena:formatted-content /,/<\/hatena:formatted-content>/'
            USE_SED=true
            ;;
        -s      )
            USE_SED=true
            ;;
        *       )
            PICK_TAGS="$arg"
            ;;
    esac
done

if [ -n "$USE_SED" ]; then
    sed -n "${PICK_TAGS}p"
else
    sed -n '/<entry>/,/<\/entry>/p' \
        | grep -E "${PICK_TAGS}|<[/]?entry>"
fi