You can try this:
```
def remove_colon(m) =
def f(pair) =
lbl = fst(pair)
val = snd(pair)
replace = fun (_) -> ""
(lbl,string.replace(pattern=":",replace,lbl)
end
list.map(f,m)
end
s = map_metadata(remove_colon,s)
```
(Code untried)
You could also be more specific by only rewriting some specific parts:
```
def remove_colon(m) =
def strip(s) =
replace = fun (_) -> ""
string.replace(pattern=":",replace,s)
end
updated_meta = []
updated_meta =
if m["title"] then
list.add(("title",string.replace(m["title"]),updated_meta)
else
updated_meta
end
# Repeat for other labels.
updated_meta
end
s = map_metadata(remove_colon,s)
```
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