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dolmen/go-text-template-hacks.md

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Go text/template hacks
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go-text-template-hacks.md

Go text/template hacks

Hacks below use goproc to experiment with Go templates from the command-line.

Convert bool to int

$ echo false | goproc -e '{{.}} => {{index "....\001\000" (len (print .))}}{{"\n"}}'
false => 0
$ echo true | goproc -e '{{.}} => {{index "....\001\000" (len (print .))}}{{"\n"}}'
true => 1

Display true in red, false in green

$ echo false | goproc -e '{{printf "\033[1;3%cm%v\033[m\n" (index "....12" (len (print .))) .}}'
$ echo true | goproc -e '{{printf "\033[1;3%cm%v\033[m\n" (index "....12" (len (print .))) .}}'
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