Follow-up Comment #9, bug #66919 (group groff): Okay, then, we need to burn this down to first principles, because you are blinding me with your claims that the `hcode` request is **ever** "failing to accept a special character as a first argument".
As far as I can tell, it is doing so with perfect reliability. But something is going wrong that you're not happy with and we need to identify what that is. Apply the following patch. $ git diff diff --git a/src/roff/troff/input.cpp b/src/roff/troff/input.cpp index 0bf7533c5..1ced88ebe 100644 --- a/src/roff/troff/input.cpp +++ b/src/roff/troff/input.cpp @@ -8030,6 +8030,7 @@ static void set_hyphenation_codes() " got %1", tok.description()); break; } + debug("assigning hyphenation code to special or indexed character"); } tok.next(); if (!has_arg()) { Running the patched GNU _troff_ with your "66919.groff" file (comment #0) and my subsequent "66919[bcd].groff" files, I get the following. $ ./build/test-groff -a -Wbreak ATTIC/66919.groff troff:ps.tmac:84: debug: assigning hyphenation code to special or indexed character troff:ps.tmac:85: debug: assigning hyphenation code to special or indexed character troff:ps.tmac:86: debug: assigning hyphenation code to special or indexed character troff:ps.tmac:87: debug: assigning hyphenation code to special or indexed character troff:ps.tmac:88: debug: assigning hyphenation code to special or indexed character troff:en.tmac:58: debug: assigning hyphenation code to special or indexed character troff:en.tmac:58: debug: assigning hyphenation code to special or indexed character troff:en.tmac:59: debug: assigning hyphenation code to special or indexed character troff:en.tmac:59: debug: assigning hyphenation code to special or indexed character troff:en.tmac:60: debug: assigning hyphenation code to special or indexed character troff:en.tmac:60: debug: assigning hyphenation code to special or indexed character troff:en.tmac:61: debug: assigning hyphenation code to special or indexed character troff:en.tmac:61: debug: assigning hyphenation code to special or indexed character troff:en.tmac:62: debug: assigning hyphenation code to special or indexed character troff:en.tmac:62: debug: assigning hyphenation code to special or indexed character troff:en.tmac:63: debug: assigning hyphenation code to special or indexed character troff:en.tmac:63: debug: assigning hyphenation code to special or indexed character troff:en.tmac:64: debug: assigning hyphenation code to special or indexed character troff:en.tmac:64: debug: assigning hyphenation code to special or indexed character troff:en.tmac:65: debug: assigning hyphenation code to special or indexed character troff:en.tmac:65: debug: assigning hyphenation code to special or indexed character troff:en.tmac:66: debug: assigning hyphenation code to special or indexed character troff:en.tmac:66: debug: assigning hyphenation code to special or indexed character troff:en.tmac:67: debug: assigning hyphenation code to special or indexed character troff:en.tmac:67: debug: assigning hyphenation code to special or indexed character troff:en.tmac:68: debug: assigning hyphenation code to special or indexed character troff:en.tmac:68: debug: assigning hyphenation code to special or indexed character troff:en.tmac:69: debug: assigning hyphenation code to special or indexed character troff:en.tmac:69: debug: assigning hyphenation code to special or indexed character troff:en.tmac:70: debug: assigning hyphenation code to special or indexed character troff:en.tmac:70: debug: assigning hyphenation code to special or indexed character troff:en.tmac:71: debug: assigning hyphenation code to special or indexed character troff:en.tmac:71: debug: assigning hyphenation code to special or indexed character troff:en.tmac:72: debug: assigning hyphenation code to special or indexed character troff:en.tmac:72: debug: assigning hyphenation code to special or indexed character troff:en.tmac:73: debug: assigning hyphenation code to special or indexed character troff:en.tmac:73: debug: assigning hyphenation code to special or indexed character troff:en.tmac:74: debug: assigning hyphenation code to special or indexed character troff:en.tmac:74: debug: assigning hyphenation code to special or indexed character troff:en.tmac:75: debug: assigning hyphenation code to special or indexed character troff:en.tmac:75: debug: assigning hyphenation code to special or indexed character troff:en.tmac:76: debug: assigning hyphenation code to special or indexed character troff:en.tmac:76: debug: assigning hyphenation code to special or indexed character troff:en.tmac:77: debug: assigning hyphenation code to special or indexed character troff:en.tmac:77: debug: assigning hyphenation code to special or indexed character troff:en.tmac:78: debug: assigning hyphenation code to special or indexed character troff:en.tmac:78: debug: assigning hyphenation code to special or indexed character troff:en.tmac:79: debug: assigning hyphenation code to special or indexed character troff:en.tmac:79: debug: assigning hyphenation code to special or indexed character troff:ATTIC/66919.groff:1: debug: assigning hyphenation code to special or indexed character special character "~o" is not translated does not have a macro special translation: 0 hyphenation code: 0 flags: 0 ASCII code: 0 asciify code: 245 is found is transparently translatable is translatable as input mode: normal special character "~o" is not translated does not have a macro special translation: 0 hyphenation code: 245 flags: 0 ASCII code: 0 asciify code: 245 is found is transparently translatable is translatable as input mode: normal $ ./build/test-groff -a -Wbreak ATTIC/66919b.groff troff:ps.tmac:84: debug: assigning hyphenation code to special or indexed character troff:ps.tmac:85: debug: assigning hyphenation code to special or indexed character troff:ps.tmac:86: debug: assigning hyphenation code to special or indexed character troff:ps.tmac:87: debug: assigning hyphenation code to special or indexed character troff:ps.tmac:88: debug: assigning hyphenation code to special or indexed character troff:en.tmac:58: debug: assigning hyphenation code to special or indexed character troff:en.tmac:58: debug: assigning hyphenation code to special or indexed character troff:en.tmac:59: debug: assigning hyphenation code to special or indexed character troff:en.tmac:59: debug: assigning hyphenation code to special or indexed character troff:en.tmac:60: debug: assigning hyphenation code to special or indexed character troff:en.tmac:60: debug: assigning hyphenation code to special or indexed character troff:en.tmac:61: debug: assigning hyphenation code to special or indexed character troff:en.tmac:61: debug: assigning hyphenation code to special or indexed character troff:en.tmac:62: debug: assigning hyphenation code to special or indexed character troff:en.tmac:62: debug: assigning hyphenation code to special or indexed character troff:en.tmac:63: debug: assigning hyphenation code to special or indexed character troff:en.tmac:63: debug: assigning hyphenation code to special or indexed character troff:en.tmac:64: debug: assigning hyphenation code to special or indexed character troff:en.tmac:64: debug: assigning hyphenation code to special or indexed character troff:en.tmac:65: debug: assigning hyphenation code to special or indexed character troff:en.tmac:65: debug: assigning hyphenation code to special or indexed character troff:en.tmac:66: debug: assigning hyphenation code to special or indexed character troff:en.tmac:66: debug: assigning hyphenation code to special or indexed character troff:en.tmac:67: debug: assigning hyphenation code to special or indexed character troff:en.tmac:67: debug: assigning hyphenation code to special or indexed character troff:en.tmac:68: debug: assigning hyphenation code to special or indexed character troff:en.tmac:68: debug: assigning hyphenation code to special or indexed character troff:en.tmac:69: debug: assigning hyphenation code to special or indexed character troff:en.tmac:69: debug: assigning hyphenation code to special or indexed character troff:en.tmac:70: debug: assigning hyphenation code to special or indexed character troff:en.tmac:70: debug: assigning hyphenation code to special or indexed character troff:en.tmac:71: debug: assigning hyphenation code to special or indexed character troff:en.tmac:71: debug: assigning hyphenation code to special or indexed character troff:en.tmac:72: debug: assigning hyphenation code to special or indexed character troff:en.tmac:72: debug: assigning hyphenation code to special or indexed character troff:en.tmac:73: debug: assigning hyphenation code to special or indexed character troff:en.tmac:73: debug: assigning hyphenation code to special or indexed character troff:en.tmac:74: debug: assigning hyphenation code to special or indexed character troff:en.tmac:74: debug: assigning hyphenation code to special or indexed character troff:en.tmac:75: debug: assigning hyphenation code to special or indexed character troff:en.tmac:75: debug: assigning hyphenation code to special or indexed character troff:en.tmac:76: debug: assigning hyphenation code to special or indexed character troff:en.tmac:76: debug: assigning hyphenation code to special or indexed character troff:en.tmac:77: debug: assigning hyphenation code to special or indexed character troff:en.tmac:77: debug: assigning hyphenation code to special or indexed character troff:en.tmac:78: debug: assigning hyphenation code to special or indexed character troff:en.tmac:78: debug: assigning hyphenation code to special or indexed character troff:en.tmac:79: debug: assigning hyphenation code to special or indexed character troff:en.tmac:79: debug: assigning hyphenation code to special or indexed character <beginning of page> lantero<hy> nial special character "~o" is not translated does not have a macro special translation: 0 hyphenation code: 0 flags: 0 ASCII code: 0 asciify code: 245 is found is transparently translatable is translatable as input mode: normal lanter<~o>nial troff:ATTIC/66919b.groff:5: debug: assigning hyphenation code to special or indexed character special character "~o" is not translated does not have a macro special translation: 0 hyphenation code: 0 flags: 0 ASCII code: 0 asciify code: 245 is found is transparently translatable is translatable as input mode: normal lanter<~o>nial $ ./build/test-groff -a -Wbreak ATTIC/66919c.groff troff:ps.tmac:84: debug: assigning hyphenation code to special or indexed character troff:ps.tmac:85: debug: assigning hyphenation code to special or indexed character troff:ps.tmac:86: debug: assigning hyphenation code to special or indexed character troff:ps.tmac:87: debug: assigning hyphenation code to special or indexed character troff:ps.tmac:88: debug: assigning hyphenation code to special or indexed character troff:en.tmac:58: debug: assigning hyphenation code to special or indexed character troff:en.tmac:58: debug: assigning hyphenation code to special or indexed character troff:en.tmac:59: debug: assigning hyphenation code to special or indexed character troff:en.tmac:59: debug: assigning hyphenation code to special or indexed character troff:en.tmac:60: debug: assigning hyphenation code to special or indexed character troff:en.tmac:60: debug: assigning hyphenation code to special or indexed character troff:en.tmac:61: debug: assigning hyphenation code to special or indexed character troff:en.tmac:61: debug: assigning hyphenation code to special or indexed character troff:en.tmac:62: debug: assigning hyphenation code to special or indexed character troff:en.tmac:62: debug: assigning hyphenation code to special or indexed character troff:en.tmac:63: debug: assigning hyphenation code to special or indexed character troff:en.tmac:63: debug: assigning hyphenation code to special or indexed character troff:en.tmac:64: debug: assigning hyphenation code to special or indexed character troff:en.tmac:64: debug: assigning hyphenation code to special or indexed character troff:en.tmac:65: debug: assigning hyphenation code to special or indexed character troff:en.tmac:65: debug: assigning hyphenation code to special or indexed character troff:en.tmac:66: debug: assigning hyphenation code to special or indexed character troff:en.tmac:66: debug: assigning hyphenation code to special or indexed character troff:en.tmac:67: debug: assigning hyphenation code to special or indexed character troff:en.tmac:67: debug: assigning hyphenation code to special or indexed character troff:en.tmac:68: debug: assigning hyphenation code to special or indexed character troff:en.tmac:68: debug: assigning hyphenation code to special or indexed character troff:en.tmac:69: debug: assigning hyphenation code to special or indexed character troff:en.tmac:69: debug: assigning hyphenation code to special or indexed character troff:en.tmac:70: debug: assigning hyphenation code to special or indexed character troff:en.tmac:70: debug: assigning hyphenation code to special or indexed character troff:en.tmac:71: debug: assigning hyphenation code to special or indexed character troff:en.tmac:71: debug: assigning hyphenation code to special or indexed character troff:en.tmac:72: debug: assigning hyphenation code to special or indexed character troff:en.tmac:72: debug: assigning hyphenation code to special or indexed character troff:en.tmac:73: debug: assigning hyphenation code to special or indexed character troff:en.tmac:73: debug: assigning hyphenation code to special or indexed character troff:en.tmac:74: debug: assigning hyphenation code to special or indexed character troff:en.tmac:74: debug: assigning hyphenation code to special or indexed character troff:en.tmac:75: debug: assigning hyphenation code to special or indexed character troff:en.tmac:75: debug: assigning hyphenation code to special or indexed character troff:en.tmac:76: debug: assigning hyphenation code to special or indexed character troff:en.tmac:76: debug: assigning hyphenation code to special or indexed character troff:en.tmac:77: debug: assigning hyphenation code to special or indexed character troff:en.tmac:77: debug: assigning hyphenation code to special or indexed character troff:en.tmac:78: debug: assigning hyphenation code to special or indexed character troff:en.tmac:78: debug: assigning hyphenation code to special or indexed character troff:en.tmac:79: debug: assigning hyphenation code to special or indexed character troff:en.tmac:79: debug: assigning hyphenation code to special or indexed character <beginning of page> lantero<hy> nial special character "~o" is not translated does not have a macro special translation: 0 hyphenation code: 0 flags: 0 ASCII code: 0 asciify code: 245 is found is transparently translatable is translatable as input mode: normal lanter<~o>nial troff:ATTIC/66919c.groff:7: debug: assigning hyphenation code to special or indexed character special character "~o" is not translated does not have a macro special translation: 0 hyphenation code: 111 flags: 0 ASCII code: 0 asciify code: 245 is found is transparently translatable is translatable as input mode: normal lanter<~o><hy> nial $ ./build/test-groff -a -Wbreak ATTIC/66919d.groff troff:ps.tmac:84: debug: assigning hyphenation code to special or indexed character troff:ps.tmac:85: debug: assigning hyphenation code to special or indexed character troff:ps.tmac:86: debug: assigning hyphenation code to special or indexed character troff:ps.tmac:87: debug: assigning hyphenation code to special or indexed character troff:ps.tmac:88: debug: assigning hyphenation code to special or indexed character troff:en.tmac:58: debug: assigning hyphenation code to special or indexed character troff:en.tmac:58: debug: assigning hyphenation code to special or indexed character troff:en.tmac:59: debug: assigning hyphenation code to special or indexed character troff:en.tmac:59: debug: assigning hyphenation code to special or indexed character troff:en.tmac:60: debug: assigning hyphenation code to special or indexed character troff:en.tmac:60: debug: assigning hyphenation code to special or indexed character troff:en.tmac:61: debug: assigning hyphenation code to special or indexed character troff:en.tmac:61: debug: assigning hyphenation code to special or indexed character troff:en.tmac:62: debug: assigning hyphenation code to special or indexed character troff:en.tmac:62: debug: assigning hyphenation code to special or indexed character troff:en.tmac:63: debug: assigning hyphenation code to special or indexed character troff:en.tmac:63: debug: assigning hyphenation code to special or indexed character troff:en.tmac:64: debug: assigning hyphenation code to special or indexed character troff:en.tmac:64: debug: assigning hyphenation code to special or indexed character troff:en.tmac:65: debug: assigning hyphenation code to special or indexed character troff:en.tmac:65: debug: assigning hyphenation code to special or indexed character troff:en.tmac:66: debug: assigning hyphenation code to special or indexed character troff:en.tmac:66: debug: assigning hyphenation code to special or indexed character troff:en.tmac:67: debug: assigning hyphenation code to special or indexed character troff:en.tmac:67: debug: assigning hyphenation code to special or indexed character troff:en.tmac:68: debug: assigning hyphenation code to special or indexed character troff:en.tmac:68: debug: assigning hyphenation code to special or indexed character troff:en.tmac:69: debug: assigning hyphenation code to special or indexed character troff:en.tmac:69: debug: assigning hyphenation code to special or indexed character troff:en.tmac:70: debug: assigning hyphenation code to special or indexed character troff:en.tmac:70: debug: assigning hyphenation code to special or indexed character troff:en.tmac:71: debug: assigning hyphenation code to special or indexed character troff:en.tmac:71: debug: assigning hyphenation code to special or indexed character troff:en.tmac:72: debug: assigning hyphenation code to special or indexed character troff:en.tmac:72: debug: assigning hyphenation code to special or indexed character troff:en.tmac:73: debug: assigning hyphenation code to special or indexed character troff:en.tmac:73: debug: assigning hyphenation code to special or indexed character troff:en.tmac:74: debug: assigning hyphenation code to special or indexed character troff:en.tmac:74: debug: assigning hyphenation code to special or indexed character troff:en.tmac:75: debug: assigning hyphenation code to special or indexed character troff:en.tmac:75: debug: assigning hyphenation code to special or indexed character troff:en.tmac:76: debug: assigning hyphenation code to special or indexed character troff:en.tmac:76: debug: assigning hyphenation code to special or indexed character troff:en.tmac:77: debug: assigning hyphenation code to special or indexed character troff:en.tmac:77: debug: assigning hyphenation code to special or indexed character troff:en.tmac:78: debug: assigning hyphenation code to special or indexed character troff:en.tmac:78: debug: assigning hyphenation code to special or indexed character troff:en.tmac:79: debug: assigning hyphenation code to special or indexed character troff:en.tmac:79: debug: assigning hyphenation code to special or indexed character <beginning of page> lantero<hy> nial special character "~o" is not translated does not have a macro special translation: 0 hyphenation code: 0 flags: 0 ASCII code: 0 asciify code: 245 is found is transparently translatable is translatable as input mode: normal lanter<~o>nial special character "~o" is not translated does not have a macro special translation: 0 hyphenation code: 111 flags: 0 ASCII code: 0 asciify code: 245 is found is transparently translatable is translatable as input mode: normal lanter<~o><hy> nial _______________________________________________________ Reply to this item at: <https://savannah.gnu.org/bugs/?66919> _______________________________________________ Message sent via Savannah https://savannah.gnu.org/
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