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thebookofcolors
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Add section on concealment

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The Magician 2023-11-07 12:59:59 +00:00
parent 06f94a5ca1
commit 8fc2e23773
1 changed files with 20 additions and 1 deletions
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thebookofcolors
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@ -401,7 +401,26 @@ section_inverse() {
section_conceal() { section_conceal() {
title "Code 8; Conceal, or Hide" title "Code 8; Conceal, or Hide"
printf "TODO\n" printf "Code 8 causes text to be hidden from view.\n"
printf "This appears to be achieved by setting the foreground color to be equal to the background color, thus rendering the text illegible.\n"
newline
subtitle "Examples of Concealed Text"
printf "Here are four instances of the text \"THIS TEXT IS HIDDEN\", displayed on both the default background color and a cyan background.\n"
printf "The second of each pair has code 8 enabled to cause the text to be hidden.\n"
newline
printf "THIS TEXT IS HIDDEN\n"
printf "\e[8mTHIS TEXT IS HIDDEN\e[0m\n"
printf "\e[46mTHIS TEXT IS HIDDEN\e[0m\n"
printf "\e[8;46mTHIS TEXT IS HIDDEN\e[0m\n"
newline
printf "Please note that using this code to hide text is NOT a security feature.\n"
printf "You will observe that, if using a pager such as \`less\` to view this text, you will still be able to find all instances of the text using the search function.\n"
printf "Likewise, if output from a program which uses this code is redirected to a file, then the \"concealed\" text will be visible in that file.\n"
printf "It is NOT SAFE to output sensitive information, such as passwords or API keys, using this code.\n"
} }
section_strikethrough() { section_strikethrough() {