8000 fix: parse ` ` correctly by david-christiansen · Pull Request #433 · leanprover/verso · GitHub
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fix: parse correctly #433

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merged 1 commit into from
Jun 13, 2025
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fix: parse correctly #433

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38 changes: 36 additions & 2 deletions src/verso/Verso/Parser.lean
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Original file line number Diff line number Diff line change
Expand Up @@ -1178,8 +1178,9 @@ mutual
let str := s.stxStack.back
if let .atom info str := str then
if str.startsWith "\" " && str.endsWith " \"" then
let str := "\"" ++ (str.drop 2 |>.dropRight 2) ++ "\""
if str.any (· != ' ') then
let core := str.drop 2 |>.dropRight 2
if core.any (· != ' ') then
let str := "\"" ++ core ++ "\""
let info : SourceInfo :=
match info with
| .none => .none
Expand Down Expand Up @@ -1398,6 +1399,39 @@ All input consumed.
#guard_msgs in
#eval code.test! "``foo bar``"

/--
info: Success! Final stack:
(Verso.Syntax.code "`" (str "\" \"") "`")
All input consumed.
-/
#guard_msgs in
#eval code.test! "` `"

/--
info: Success! Final stack:
(Verso.Syntax.code "`" (str "\" \"") "`")
All input consumed.
-/
#guard_msgs in
#eval code.test! "` `"

/--
info: Success! Final stack:
(Verso.Syntax.code "`" (str "\" \"") "`")
All input consumed.
-/
#guard_msgs in
#eval code.test! "` `"


/--
info: Success! Final stack:
(Verso.Syntax.code "`" (str "\"x\"") "`")
All input consumed.
-/
#guard_msgs in
#eval code.test! "` x `"

/--
info: Success! Final stack:
(Verso.Syntax.code
Expand Down
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