无论输出bash printf保持文本在适当位置 [英] Keep text in place regardless output bash printf

问题描述

当数字变大时就会发生这种情况...只是从这个烂摊子开始.文本被更大的输出推动...我如何包含这个烂摊子?

This happens when numbers gets bigger...Just started with this mess. Text being pushed around by bigger outputs...how do I contain this mess?

       Accounts......: 5      Mail..........: 7
       Banned........: 0      Pets..........: 1
       Online........: 0      Tickets.......: 0
       Guilds........: 1      Corpses.......: 0      PvP.......: 0
       Members.......: 1      Characters....: 10      Gifts.....: 4   <-----HOWTO Reserve/Preserve spaces ?? ??

应如下所示:

       Accounts......: 5      Mail..........: 7
       Banned........: 0      Pets..........: 1
       Online........: 0      Tickets.......: 0
       Guilds........: 1      Corpses.......: 0      PvP.......: 0
       Members.......: 1      Characters....: 10     Gifts.....: 4

现在这个烂摊子看起来像这样:

Now this mess looks like this:

ch_count=$(mysql --defaults-extra-file="$sql_mycnf" -N --execute="SELECT count(*) FROM $db_characters.characters;"); &> /dev/null


cm_char="\033[0mCharacters\e[0;32m....:\033[0m $ch_count\e[31m"

line="      "

           $cm_acco$line$cm_mail
           $cm_bann$line$cm_pets
           $cm_onli$line$cm_tick
           $cm_guil$line$cm_corp$line$cm_pvps
           $cm_memb$line$cm_char$line$cm_gifts

在另一台服务器上有相同的输出，但是因为它们较小，所以看起来不错:

On another server there is same outputs but because they are smaller it looks fine:

           Accounts......: 4      Mail..........: 0
           Banned........: 0      Pets..........: 0
           Online........: 0      Tickets.......: 0
           Guilds........: 0      Corpses.......: 0      PvP.......: 0
           Members.......: 0      Characters....: 2      Gifts.....: 0

编辑此行使其起作用?这是一个正确的起点吗?

Edit this line to make it work? Is this correct place to begin?

cm_char="\033[0mCharacters\e[0;32m....:\033[0m $ch_count\e[31m"

杀了我.

推荐答案

使2个函数格式化字段并使用它们:

Make 2 functions that will format the fields and use them:

dot_field() {
   # todo Change implementation when field can be 2 words with a space in between
   printf "%-14.14s:" "$1" | tr ' ' '.'
}

space_number() {
   printf "%-7.7s" "$1"
}

printline() {
   # Todo: add logic when only 4 parameters are given
   echo "       $(dot_field $1) $(space_number $2)$(dot_field $3) $(space_number $4)$(dot_field $5) $(space_number $6)"
}

printline "Guilds" 1 "Corpses" 0 "PvP" 0
printline "Members" 1 "Characters" 10 "Gifts" 4
printline "LongFieldName" 1 "High" 999999 "X" 2

添加颜色.

您不想让代码中充满各种颜色的转义代码.这取决于整个上下文，您希望如何构造颜色代码，下面给出一个有关问题的有限上下文的示例.它应该让您知道如何自己制作类似的东西.

You don't want to have your code full of escape codes for the colors. It depends on the full context how you would like to structure your color codes, I give an example for the limited context of the question. It should give you an idea how you can make something like this for yourself.

init_colors() {
    reset=$(tput sgr0)
    bold=$(tput bold)
    black=$(tput setaf 0)
    red=$(tput setaf 1)
    green=$(tput setaf 2)
    yellow=$(tput setaf 3)
    blue=$(tput setaf 4)
    magenta=$(tput setaf 5)
    cyan=$(tput setaf 6)
    white=$(tput setaf 7)
    user_color=$bold
}

# colorstring reads from stdin and uses parameter 1 as an escape sequence
# with more parameters the first is used as a color, the other as the string to be modified
# It will set colors until the last space sequence
colorstring() {
   case $# in
   0) # invalid
      echo "colorstring called without parameters"
   ;;
   1)
      sed -r "s/^.*[^ ]/$1&${reset}/"
      ;;
   *)
      color="$1"
      shift
      sed -r "s/^.*[^ ]/${color}&${reset}/" <<< "$@"
   ;;
   esac

}

dot_field() {
   # todo Change implementation when field can be 2 words with a space in between
   printf "%-14.14s" "$1" | colorstring ${cyan} | tr ' ' '.'
   # The : must be printed in a second statement when you don't want cyan dots.
   printf ':'
}

space_number() {
   printf "%-7.7s" "$1" | colorstring ${red}
}

printline() {
   echo "       $(dot_field $1) $(space_number $2)$(dot_field $3) $(space_number $4)$(dot_field $5) $(space_number $6)"
}

# init the color variables
init_colors
# Next echo not needed, just testing the new colorstring function
echo "$(colorstring ${blue} blue string) $(colorstring ${red} red car) $(colorstring ${white} white snow) $(colorstring ${yellow} yellow marker) $(colorstring ${cyan} cyan) "
printline "Guilds" 1 "Corpses" 0 "PvP" 0
printline "Members" 1 "Characters" 10 "Gifts" 4
printline "LongFieldName" 1 "High" 999999 "X" 2

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