Launchpad currently recommends translating flex in Ubuntu Eoan.

Template "flex" in Ubuntu Eoan package "flex"

Language Status Untranslated Need review Changed Last Edited By
Cherokee 100.00  100.0% untranslated 169 169 0 0
Dakota 100.00  100.0% untranslated 169 169 0 0
Hawaiian 100.00  100.0% untranslated 169 169 0 0
Inuktitut 100.00  100.0% untranslated 169 169 0 0
Lakota 100.00  100.0% untranslated 169 169 0 0
Ojibwe 100.00  100.0% untranslated 169 169 0 0
Spanish 005.33  94.674556213% translated  5.32544378698% untranslated 9 9 0 25 25 2018-08-14 23:33:31 UTC 2018-08-14 Nicolás García-Pedrajas
Tlingit 100.00  100.0% untranslated 169 169 0 0
Yiddish 100.00  100.0% untranslated 169 169 0 0
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Key to this table: “Unchanged” means Translated
and “untranslated” means just that, Untranslated

Other versions of flex in Ubuntu