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-rw-r--r--lib/stdlib/test/string_SUITE.erl6
-rw-r--r--lib/stdlib/uc_spec/gen_unicode_mod.escript12
2 files changed, 12 insertions, 6 deletions
diff --git a/lib/stdlib/test/string_SUITE.erl b/lib/stdlib/test/string_SUITE.erl
index 2539bf8692..7d5330ddb8 100644
--- a/lib/stdlib/test/string_SUITE.erl
+++ b/lib/stdlib/test/string_SUITE.erl
@@ -652,6 +652,9 @@ cd_gc(_) ->
[778|<<>>] = string:next_codepoint(tl(string:next_codepoint(<<$e,778/utf8>>))),
[0|<<128,1>>] = string:next_codepoint(<<0,128,1>>),
{error,<<128,1>>} = string:next_codepoint(<<128,1>>),
+ [128021|<<>>] = string:next_codepoint(<<128021/utf8>>), %% Dog
+ [128021|<<8205/utf8>>] = string:next_codepoint(<<128021/utf8,8205/utf8>>), %% Dog + ZWJ
+ [128021|<<8205/utf8,129466/utf8>>] = string:next_codepoint(<<128021/utf8,8205/utf8,129466/utf8>>), %% Dog + ZWJ + Service vest == Service dog
[] = string:next_grapheme(""),
[] = string:next_grapheme(<<>>),
@@ -664,6 +667,9 @@ cd_gc(_) ->
[[$e,778]|<<>>] = string:next_grapheme(<<$e,778/utf8>>),
[0|<<128,1>>] = string:next_grapheme(<<0,128,1>>),
{error,<<128,1>>} = string:next_grapheme(<<128,1>>),
+ [128021|<<>>] = string:next_grapheme(<<128021/utf8>>), %% Dog
+ [[128021,8205]|<<>>] = string:next_grapheme(<<128021/utf8,8205/utf8>>), %% Dog + ZWJ
+ [[128021,8205,129466]|<<>>] = string:next_grapheme(<<128021/utf8,8205/utf8,129466/utf8>>), %% Dog + ZWJ + Service vest == Service dog
ok.
diff --git a/lib/stdlib/uc_spec/gen_unicode_mod.escript b/lib/stdlib/uc_spec/gen_unicode_mod.escript
index af27e47337..1a5049534a 100644
--- a/lib/stdlib/uc_spec/gen_unicode_mod.escript
+++ b/lib/stdlib/uc_spec/gen_unicode_mod.escript
@@ -705,10 +705,10 @@ gen_gc(Fd, GBP) ->
" _ -> [lists:reverse(Acc)|T0]\n"
" end\n"
" end;\n"
- "gc_ext_pict([], _T0, Acc) ->\n"
+ "gc_ext_pict([], T0, Acc) ->\n"
" case Acc of\n"
- " [A] -> [A];\n"
- " _ -> [lists:reverse(Acc)]\n"
+ " [A] -> [A|T0];\n"
+ " _ -> [lists:reverse(Acc)|T0]\n"
" end;\n"
"gc_ext_pict({error,R}, T, Acc) ->\n"
" gc_ext_pict([], T, Acc) ++ [R].\n\n"),
@@ -722,10 +722,10 @@ gen_gc(Fd, GBP) ->
" _ -> [lists:reverse(Acc)|T0]\n"
" end\n"
" end;\n"
- "gc_ext_pict_zwj([], _, Acc) ->\n"
+ "gc_ext_pict_zwj([], T0, Acc) ->\n"
" case Acc of\n"
- " [A] -> [A];\n"
- " _ -> [lists:reverse(Acc)]\n"
+ " [A] -> [A|T0];\n"
+ " _ -> [lists:reverse(Acc)|T0]\n"
" end;\n"
"gc_ext_pict_zwj({error,R}, T, Acc) ->\n"
" gc_ext_pict_zwj([], T, Acc) ++ [R].\n\n"),