Issues

• ToPascalCase/ToCamelCase lose the word boundary before a titlecase digraph (Dž Lj Nj Dz): "ms DŽ" → "MsDž" → "Msdž" on a second pass

  bug
  ktsu-dev/CaseConverter#156 · Filter by author matt-edmondson opened on Nov 1, 2026
  1

• An apostrophe after a digit splits off the "s": "the 1990's" → Title "The 1990'S", snake "the_1990_s", Pascal "The1990S"

  bug
  ktsu-dev/CaseConverter#154 · Filter by author matt-edmondson opened on Oct 31, 2026
  

• The #133 fix misses the Armenian ligature "և" (the word "and"): "Ես և դու".ToPascalCase() → "ԵսևԴու", which snakes back to "եսև_դու"

  bug
  ktsu-dev/CaseConverter#150 · Filter by author matt-edmondson opened on Oct 30, 2026
  1

  

• No release since Oct 9: pack fails with CP0014/CP0015 between net9.0 and net10.0 after the Polyfill 11.4.5 bump, so the #127–#137 fixes aren't on NuGet

  bug
  ktsu-dev/CaseConverter#149 · Filter by author matt-edmondson opened on Oct 30, 2026
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• An all-caps possessive after a lowercased capital run still splits off: "o'NEIL'S".ToSnakeCase() → "oneil_s", "d'ARTAGNAN'S sword" → "dartagnan_s_sword"

  bug
  ktsu-dev/CaseConverter#148 · Filter by author matt-edmondson opened on Oct 30, 2026
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• Zero-width non-joiner, zero-width joiner and soft hyphen split one word into two: Persian "می‌خواهم" → "می_خواهم", "co­operate" → "CoOperate"

  bug
  ktsu-dev/CaseConverter#145 · Filter by author matt-edmondson opened on Oct 30, 2026
  

• Decomposed (NFD) accent after an apostrophe splits the word: "L'Été" → "l_été" / "LÉté" while the composed form gives "lété" / "Lété"

  bug
  ktsu-dev/CaseConverter#144 · Filter by author matt-edmondson opened on Oct 30, 2026
  

• Title-cased "ʼn" becomes "ʼN", which the splitter breaks again: "die ʼn boek" → "Die ʼN Boek" → "Die ʼ N Boek", and Pascal→snake gives "dieʼ_n_boek"

  bug
  ktsu-dev/CaseConverter#142 · Filter by author matt-edmondson opened on Oct 30, 2026
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• ToPascalCase merges the next word after a capital followed by "ß" or a ligature ("off switch" → "OffSwitch" → "Offswitch")

  bug
  ktsu-dev/CaseConverter#140 · Filter by author matt-edmondson opened on Oct 30, 2026
  

• Every converter is quadratic on a run of lowercase letters with no uppercase form: 16,000 "ß" (or 𝓪, ĸ, fi) take ~17 s, 32,000 "ß" take 120 s for ToPascalCase

  bug
  ktsu-dev/CaseConverter#138 · Filter by author matt-edmondson opened on Oct 29, 2026
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• snake/kebab/Title split their own output when an acronym ends in a capital with no lowercase form: "APIℝ".ToSnakeCase() → "apiℝ" → "api_ℝ"

  bug
  ktsu-dev/CaseConverter#126 · Filter by author matt-edmondson opened on Oct 17, 2026
  1

• ToMacroCase isn't idempotent for a single letter after a digit: "vector2d" → "VECTOR_2D" → "VECTOR_2_D", "3d model" → "3D_MODEL" → "3_D_MODEL"

  bug
  ktsu-dev/CaseConverter#124 · Filter by author matt-edmondson opened on Oct 17, 2026
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• A word with two apostrophes splits mid-word when a capital precedes the first one: "I'd've".ToSnakeCase() → "i_dve", "Y'all'd" → "yal_ld"

  bug
  ktsu-dev/CaseConverter#109 · Filter by author matt-edmondson opened on Oct 5, 2026
  1

• A titlecase digraph (Dž, Lj, Nj, Dz) followed by capitals is split off as its own word: "DžEMAL".ToSnakeCase() → "dž_emal", ToMacroCase() → "DŽ_EMAL"

  bug
  ktsu-dev/CaseConverter#106 · Filter by author matt-edmondson opened on Sep 29, 2026
  1

• Pascal/Camel/Snake/Kebab/Macro delete Unicode letter-number characters: "chapter Ⅻ".ToPascalCase() → "Chapter", "Ⅻ".ToSnakeCase() → ""

  bug
  ktsu-dev/CaseConverter#105 · Filter by author matt-edmondson opened on Sep 29, 2026
  1

• Regression: "Is"/"As" after an acronym or single capital merges into the previous word: "UserIDIsValid".ToSnakeCase() → "user_idis_valid", "URLIsSet".ToPascalCase() → "UrlisSet"

  bug
  ktsu-dev/CaseConverter#104 · Filter by author matt-edmondson opened on Sep 29, 2026
  1