Administrace komentářů

Pred lety jsem delal v Bash prototyp streamoveho filtru.

Pak jsem to prepsal s jinou filosofii v C.

Nicmene vyvoj sel velmi rychle (stale jsem odchytaval dalsi a dalsi zverstva v tom streamu).

Myslim ze by to slo snadno priohnout.

Je to ale dost pomale....

#!/bin/bash
export IFS=""
ramecky=0
while read -rsn1 char
do

        if [ $ramecky -eq 1 ]
        then
                case "$char" in
                $'\033')
                        read -rsn1 char1
                        if [ "$char1" =  '[' ]
                        then
                                read -rsn1 char2
                                if [ "$char2" = '1' ]
                                then
                                        read -rsn1 char3
                                        if [ "$char3" = '0' ]
                                        then
                                                read -rsn1 char4
                                                if [ "$char4" = 'm' ]
                                                then
                                                        #rozpoznana escape sequence na zapnuti ramecku
                                                        ramecky=0
                                                        echo -en "\\033[0;39m"

                                                else
                                                        echo -n "$char$char1$char2$char3$char4"
                                                fi
                                        else
                                                echo -n "$char$char1$char2$char3"
                                        fi
                                else
                                        echo -n "$char$char1$char2"
                                fi
                        else
                                 echo -n "$char$char1"
                        fi
                        ;;
                D)
                        echo -n '-'
                        ;;
                Z)
                        echo -n ','
                        ;;
                '?')
                        echo -n '.'
                        ;;
                '@')
                        echo -n '`'
                        ;;
                'Y')
                        echo -n "'"
                        ;;
                '3')
                        echo -n '|'
                        ;;
                '')
                        echo
                        ;;
                *)
                        echo -n "$char"
                esac
        else
                case "$char" in
                $'\033')
                        read -rsn1 char1
                        case "$char1" in
                        "d")
                                read -rsn1 char2
                                if [ "$char2" = '#' ]
                                then
                                        #tady probiha tisk

                                        read -rsn1 char3
                                        ( while [ ! "$char3" = $'\024' ]
                                        do
                                                [ "$char" ] || echo
                                                echo -n "$char3"
                                                read -rsn1 char3
                                        done ) | /usr/local/sbin/print1
                                else
                                        echo -n "$char$char1$char2"
                                fi
                                ;;
                        '[')
                                read -rsn1 char2
                                case "$char2" in
                                1)
                                        read -rsn1 char3
                                        if [ "$char3" = '2' ]
                                        then
                                                read -rsn1 char4
                                                if [ "$char4" = 'm' ]
                                                then
                                                        #rozpoznana escape sequence na zapnuti ramecku
                                                        ramecky=1
                                                        echo -en "\\033[1;43m"
                                                else
                                                        echo -n "$char$char1$char2$char3$char4"
                                                fi
                                        else
                                                echo -n "$char$char1$char2$char3"
                                        fi
                                        ;;
                                5)
                                        read -rsn1 char3
                                        if [ "$char3" = ';' ]
                                        then
                                                read -rsn1 char4
                                                if [ "$char4" = '1' ]
                                                then

                                                        read -rsn1 char5
                                                        if [ "$char5" = 'i' ]
                                                        then
                                                                #rozpoznany zacatek tisku
                                                                konec=0
                                                                ( while [ "$konec" -eq 0 ]
                                                                do
                                                                        read -rsn1 char6
                                                                        if [ "$char6" = $'\033' ]
                                                                        then
                                                                                read -rsn1 char7
                                                                                if [ "$char7" = '[' ]
                                                                                then
                                                                                        read -rsn1 char8
                                                                                        if [ "$char8" = '4' ]
                                                                                        then
                                                                                                read -rsn1 char9
                                                                                                if [ "$char9" = 'i' ]
                                                                                                then
                                                                                                        konec=1
                                                                                                else
                                                                                                        echo -n "$char6$char7$char8$char9"
                                                                                                fi
                                                                                        else
                                                                                                echo -n "$char6$char7$char8"
                                                                                        fi
                                                                                else
                                                                                        echo -n "$char6$char7"
                                                                                fi
                                                                        else
                                                                                [ "$char6" ] || echo
                                                                                echo -n "$char6"
                                                                        fi
                                                                done ) | /usr/local/sbin/print1
                                                        else
                                                                echo -n "$char$char1$char2$char3$char4$char5"
                                                        fi
                                                else
                                                        echo -n "$char$char1$char2$char3$char4"
                                                fi
                                        else
                                                echo -n "$char$char1$char2$char3"
                                        fi
                                        ;;
                                *)
                                        echo -n "$char$char1$char2"
                                esac
                                ;;

                        *)
                                 echo -n "$char$char1"
                        esac
                        ;;
                $'\221')
                        echo -en "\\033[1;43m \\033[0;39m"
                        ;;
                $'\237')
                        echo -en "\\033[1;42m \\033[0;39m"
                        ;;
                $'\233')
                        echo -n "-"
                        ;;
                $'\232')
                        echo -n "|"
                        ;;

                '')
                        echo
                        ;;
                *)
                        echo -n "$char"
                esac
        fi
done