Notes on the M4 Macro Language (2008)

Re:Notes on the M4 Macro Language (2008) by nick__m on Thursday May 19, 2022 @08:54PM (#31442144)

I used envsubst when I can but as far as I know you cannot do loop using envsubst. When you use the c preprocessor or php, m4, etc..., you can.

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Re:Notes on the M4 Macro Language (2008) by imglorp on Friday May 20, 2022 @12:45PM (#31449842)

Nah, that's what I meant. It does $-expansion and that's it. If you need conditionals and loop you need templates and macros like others are saying: m4, cpp, handlebars, whatever.

I use it as a low-brain template engine to do only that.

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