[REPL] 0nly do NFD normalization for latex tab-completion help if no …

…match without it (#41870)
JuliaLang · Aug 16, 2021 · ab600f8 · ab600f8
1 parent 398d1a0
commit ab600f8
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Showing 2 changed files with 8 additions and 2 deletions.
diff --git a/stdlib/REPL/src/docview.jl b/stdlib/REPL/src/docview.jl
@@ -403,9 +403,13 @@ function symbol_latex(s::String)
  return get(symbols_latex, s, "")
 end
 function repl_latex(io::IO, s::String)
- # decompose NFC-normalized identifier to match tab-completion input
- s = normalize(s, :NFD)
  latex = symbol_latex(s)
+ if isempty(latex)
+ # Decompose NFC-normalized identifier to match tab-completion
+ # input if the first search came up empty.
+ s = normalize(s, :NFD)
+ latex = symbol_latex(s)
+ end
  if !isempty(latex)
  print(io, "\"")
  printstyled(io, s, color=:cyan)

diff --git a/test/docs.jl b/test/docs.jl
@@ -1271,6 +1271,8 @@ end
 
 # issue #36378 (\u1e8b and x\u307 are the fully composed and decomposed forms of ẋ, respectively)
 @test sprint(repl_latex, "\u1e8b") == "\"x\u307\" can be typed by x\\dot<tab>\n\n"
+# issue 39814
+@test sprint(repl_latex, "\u2209") == "\"\u2209\" can be typed by \\notin<tab>\n\n"
 
 # issue #15684
 begin