Comments (3)
I think it would be standard form for that to be an extra function that ends with f
such as URLf
. I believe that this standard is used by editors to highlight the format string differently.
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I like the idea of having a url format / builder function.
If it was the signature of Sprintf
, e.g.: urlf.Sprintf("/path/%s/fileName.js?%s=%v", "pathvar/", "qkey?", "&other=true")
there's a few dangers to consider... Because of the context of the variable substitution, there's a risk of injection attacks, so the values would need to be appropriately escaped:
- path variables need to be path escaped so that
/
etc. is encoded. - query variables need to be query escaped so that
?
,=
etc. are properly encoded.
There's also the question of what happens if you do something like:
urlf.Sprintf("?%s", "data")
It could live in github.com/a-h/templ/urlf
to avoid the name of oddity of templ.URLf
or similar, but I don't mind templ.URL
I wonder if a builder style is better, since it turns issues with sprintf
replacement into compile time issues:
urlbuilder.Build().Path("a").Path("b").Path(c).Query(key, value)
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There could be an unsafe counterpart too, urlf.UnsafeSprintf
.
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