memoire

Fix error with percent signs (%) in answer text
Parent 4ceac06
John Smith

John Smith commited on 2021-357 12:38:04
Showing 2 changed files, with 2 additions and 2 deletions. 

Lua's `str:gsub(pattern, repl)` interprets `%` as a
sort of escape character in `repl`, so the presence of a `%`
in answer text would cause an error or undefined behaviour.
main.lua
View file @ 4d8e6bf
... ... 
@@ -137,7 +137,7 @@ elseif action == "r" then
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                 io.read("l")
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                 io.write(string.format(
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                     "%s\nDid you get it? ",
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-                    pst:gsub("%%A", pr.ans)
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+                    pst:gsub("%%A", pr.ans:gsub("%%", "%%%%"))
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                 ))
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                 local resp = io.read("l")
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                 review.update(deck[ip[1]][ip[2]], st, isyes(resp))
prompt.lua
View file @ 4d8e6bf
... ... 
@@ -35,7 +35,7 @@ end
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     derive the `PromptText` used to create this `Prompt`
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 ]]
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 function Prompt:spt()
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-    return self.text:gsub("%%A", "{" .. self.ans .. "}")
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+    return self.text:gsub("%%A", "{" .. self.ans:gsub("%%", "%%%%") .. "}")
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 end
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 --[[
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