Fix 22577. Add string macros to REPLCompletion. (#23119)

* Fix 22577. Add string macros to REPLCompletion.

* Add cmd macros to REPLCompletion.

* retrigger ci, update to a testset

* unicode tests.

* also complete the unicode char

Author: dhoegh

base/repl/REPLCompletions.jl

@@ -10,11 +10,19 @@ function completes_global(x, name)
     return startswith(x, name) && !('#' in x)
 end
 
+function appendmacro!(syms, macros, needle, endchar)
+    append!(syms, s[2:end-sizeof(needle)]*endchar for s in filter(x -> endswith(x, needle), macros))
+end
+
 function filtered_mod_names(ffunc::Function, mod::Module, name::AbstractString, all::Bool=false, imported::Bool=false)
     ssyms = names(mod, all, imported)
     filter!(ffunc, ssyms)
     syms = String[string(s) for s in ssyms]
+    macros =  filter(x -> startswith(x, "@" * name), syms)
+    appendmacro!(syms, macros, "_str", "\"")
+    appendmacro!(syms, macros, "_cmd", "`")
     filter!(x->completes_global(x, name), syms)
+    return syms
 end
 
 # REPL Symbol Completions

test/replcompletions.jl

@@ -65,6 +65,12 @@ ex = quote
                      contains=>4, `ls`=>5, 66=>7, 67=>8, ("q",3)=>11,
                      "α"=>12, :α=>13)
     test_customdict = CustomDict(test_dict)
+
+    macro teststr_str(s) end
+    macro tϵsτstρ_str(s) end
+    macro testcmd_cmd(s) end
+    macro tϵsτcmδ_cmd(s) end
+
     end
     test_repl_comp_dict = CompletionFoo.test_dict
     test_repl_comp_customdict = CompletionFoo.test_customdict
@@ -788,3 +794,16 @@ test_dict_completion("test_repl_comp_customdict")
 
 # Issue #23004: this should not throw:
 @test REPLCompletions.dict_identifier_key("test_dict_ℂ[\\", :other) isa Tuple
+
+@testset "completion of string/cmd macros (#22577)" begin
+    c, r, res = test_complete("ra")
+    @test "raw\"" in c
+    c, r, res = test_complete("CompletionFoo.tests")
+    @test "teststr\"" in c
+    c, r, res = test_complete("CompletionFoo.tϵsτs")
+    @test "tϵsτstρ\"" in c
+    c, r, res = test_complete("CompletionFoo.testc")
+    @test "testcmd`" in c
+    c, r, res = test_complete("CompletionFoo.tϵsτc")
+    @test "tϵsτcmδ`" in c
+end