Template-Engine/README.md

2.1 KiB

Template Engine

A shell script template engine for generating scripts that render HTML markup, or anything really.

Examples

$ #!/bin/sh
$ title='My Restaurant Randomizer';
<!doctype html>
<html>
  <head>
    <title><% $title %></title>
  </head>
  <body>
    <h1>Welcome to <% $title %></h1>
    <p>From the following restaurants:</p>
    <ul>
      $ while read restaurant; do
        <li><% $restaurant %></li>
      $ done <restaurants.txt
    </ul>
    <p>
      The fates have decided that you shall eat at:
      <strong><$% shuf -n 1 restaurants.txt %></strong>
    </p>
  </body>
</html>

The above template will generate the following shell script:

#!/bin/sh
title='My Restaurant Randomizer';
printf '%s\n' '<!doctype html>';
printf '%s\n' '<html>';
printf '%s\n' '  <head>';
printf '%s' '    <title>';
printf '%s' "$title" | jq -Rrj @html;
printf '%s\n' '</title>';
printf '%s\n' '  </head>';
printf '%s\n' '  <body>';
printf '%s' '    <h1>Welcome to ';
printf '%s' "$title" | jq -Rrj @html;
printf '%s\n' '</h1>';
printf '%s\n' '    <p>From the following restaurants:</p>';
printf '%s\n' '    <ul>';
while read restaurant; do
printf '%s' '        <li>';
printf '%s' "$restaurant" | jq -Rrj @html;
printf '%s\n' '</li>';
done <restaurants.txt
printf '%s\n' '    </ul>';
printf '%s\n' '    <p>';
printf '%s\n' '      The fates have decided that you shall eat at:';
printf '%s' '      <strong>';
printf '%s' "$(shuf -n 1 restaurants.txt)" | jq -Rrj @html;
printf '%s\n' '</strong>';
printf '%s\n' '    </p>';
printf '%s\n' '  </body>';
printf '%s\n' '</html>';

Which when executed might produce the following HTML:

<!doctype html>
<html>
  <head>
    <title>My Restaurant Randomizer</title>
  </head>
  <body>
    <h1>Welcome to My Restaurant Randomizer</h1>
    <p>From the following restaurants:</p>
    <ul>
        <li>Luigi&apos;s</li>
        <li>Papa Johns</li>
        <li>SushiQ</li>
    </ul>
    <p>
      The fates have decided that you shall eat at:
      <strong>Papa Johns</strong>
    </p>
  </body>
</html>

License

MIT