I imagine it's something like this? $ m4 << EOF changequote(],[)dnl define(foo,b... | Hacker News

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jolmg on April 3, 2020 | parent | context | favorite | on: Notes on the M4 Macro Language (2008)

I imagine it's something like this?

  $ m4 << EOF
  changequote(],[)dnl
  define(foo,bar)dnl
  ]Lorem ipsum

  foo
  [foo]

  Lorem ipsum[
  EOF
  Lorem ipsum

  foo
  bar

  Lorem ipsum

kd5bjo on April 3, 2020 [–]

That looks about right; I’m usually outputting formats that don’t care about blank lines and so skip the “dnl”s and put the start and end quotes on their own lines for readability.

throwaway_pdp09 on April 3, 2020 | [–]

Heh. Never seen that before. I'll have to have a play. Thanks both.

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