Fixes for protruding characters and spurious hyphenation.

CHANGELOG.md

@@ -7,6 +7,8 @@ As of v3.0.0 this project adheres to [Semantic Versioning](http://semver.org/).
 - Horizontal episemata bridge spaces more correctly.  As mentioned earlier, you can prevent this by appending `2` to the `_` on the note before the space you do not want bridged.  See [#1216](https://github.com/gregorio-project/gregorio/issues/1216).
 - A rising note after an oriscus flexus will no longer generate a porrectus (see [#1220](https://github.com/gregorio-project/gregorio/issues/1220)).
 - The Scribus external tool script now uses latexmk in order to handle the multi-pass features of Gregorio (see [#1236](https://github.com/gregorio-project/gregorio/issues/1236)).
+- Translation text in a syllable with a trailing (forced) hyphen is no longer truncated to its first character (see [#1254](https://github.com/gregorio-project/gregorio/issues/1254)).
+- A trailing (forced) hyphen in a syllable no longer generates a forced hyphen in the previous syllable (see [#1255](https://github.com/gregorio-project/gregorio/issues/1255)).
 
 ## Changed
 - Notes are now left-aligned as if all clefs had the same width as the largest clef in the score. You can get previous behavior back with `\grebolshiftcleftype{current}`, or temporary force alignment until the end of a score with `\grelocalbolshiftcleftype`. See Documentation of these functions and [#1189](https://github.com/gregorio-project/gregorio/issues/1189).

doc/Command_Index_internal.tex

@@ -1373,6 +1373,9 @@ \section{Gregorio\TeX{} Controls}
   \#2 & integer & the second value to compare\\
 \end{argtable}
 
+\macroname{\textbackslash gre@evaluatenextsyllable}{\#1}{gregoriotex-syllable.tex}
+Evaluates its first argument as an advance computation against the next syllable.  Twiddles the \verb=ifgre@evaluatingnextsyllable= flag around evaluation of the macro argument.
+
 \subsection{Auxiliary File}
 Gregorio\TeX\ creates its own auxiliary file (extension \texttt{gaux}) which it uses to store information between successive typesetting runs.  This allows for such features as the dynamic interline spacing.  The following functions are used to interact with that auxiliary file.
 
@@ -1822,6 +1825,9 @@ \subsection{Flags}
 \macroname{\textbackslash ifgre@textcleared}{}{gregoriotex-syllable.tex}
 Boolean indicating that the text of this syllable should not overlap any previous syllable.
 
+\macroname{\textbackslash ifgre@evaluatingnextsyllable}{}{gregoriotex-syllable.tex}
+Boolean indicating that some aspect of the next syllable is being evaluated in advance.
+
 \subsection{Boxes}
 
 Boxes are used to store elements of the score before they are printed for the purposes of reusing them and/or measuring them in order to determine their appropriate placement.

src/gabc/gabc-score-determination.y

@@ -89,6 +89,7 @@ gregorio_element *current_element;
 static char *macros[10];
 /* other variables that we will have to use */
 static gregorio_character *current_character;
+static gregorio_character *suspended_character;
 static gregorio_character *first_text_character;
 static gregorio_character *first_translation_character;
 static gregorio_tr_centering translation_type;
@@ -159,6 +160,7 @@ static void initialize_variables(bool point_and_click)
     number_of_voices = 1;
     voice = 0; /* first (and only) voice */
     current_character = NULL;
+    suspended_character = NULL;
     first_translation_character = NULL;
     first_text_character = NULL;
     translation_type = TR_NORMAL;
@@ -342,9 +344,9 @@ static __inline void save_text(void)
  * the translation pointer instead of the text pointer */
 static void start_translation(unsigned char asked_translation_type)
 {
-    save_text();
+    suspended_character = current_character;
     /* the middle letters of the translation have no sense */
-    center_is_determined = CENTER_FULLY_DETERMINED;
+    /*center_is_determined = CENTER_FULLY_DETERMINED;*/
     current_character = NULL;
     translation_type = asked_translation_type;
 }
@@ -353,6 +355,7 @@ static void end_translation(void)
 {
     ready_characters();
     first_translation_character = current_character;
+    current_character = suspended_character;
 }
 
 /*
@@ -542,6 +545,7 @@ static void close_syllable(YYLTYPE *loc)
     }
     center_is_determined = CENTER_NOT_DETERMINED;
     current_character = NULL;
+    suspended_character = NULL;
     first_text_character = NULL;
     first_translation_character = NULL;
     translation_type = TR_NORMAL;
@@ -862,23 +866,6 @@ style_beginning:
     | SP_BEGIN {
         add_style(ST_SPECIAL_CHAR);
     }
-    | ELISION_BEGIN {
-        add_style(ST_ELISION);
-    }
-    | CENTER_BEGIN {
-        if (center_is_determined) {
-            gregorio_message(
-                    "syllable already has center; ignoring additional center",
-                    "det_score", VERBOSITY_WARNING, 0);
-        } else if (has_protrusion) {
-            gregorio_message(
-                    "center not allowed after protrusion; ignored",
-                    "det_score", VERBOSITY_WARNING, 0);
-        } else {
-            add_style(ST_FORCED_CENTER);
-            center_is_determined = CENTER_HALF_DETERMINED;
-        }
-    }
     ;
 
 style_end:
@@ -906,7 +893,30 @@ style_end:
     | SP_END {
         end_style(ST_SPECIAL_CHAR);
     }
-    | ELISION_END {
+    ;
+
+special_style_beginning:
+    ELISION_BEGIN {
+        add_style(ST_ELISION);
+    }
+    | CENTER_BEGIN {
+        if (center_is_determined) {
+            gregorio_message(
+                    "syllable already has center; ignoring additional center",
+                    "det_score", VERBOSITY_WARNING, 0);
+        } else if (has_protrusion) {
+            gregorio_message(
+                    "center not allowed after protrusion; ignored",
+                    "det_score", VERBOSITY_WARNING, 0);
+        } else {
+            add_style(ST_FORCED_CENTER);
+            center_is_determined = CENTER_HALF_DETERMINED;
+        }
+    }
+    ;
+
+special_style_end:
+    ELISION_END {
         end_style(ST_ELISION);
     }
     | CENTER_END {
@@ -955,6 +965,8 @@ character:
     }
     | style_beginning
     | style_end
+    | special_style_beginning
+    | special_style_end
     | linebreak_area
     | euouae
     | CLEAR {
@@ -974,6 +986,25 @@ text:
     | text character
     ;
 
+translation_character:
+    CHARACTERS {
+        add_text($1.text);
+    }
+    | style_beginning
+    | style_end
+    | HYPHEN {
+        add_text(gregorio_strdup("-"));
+    }
+    | PROTRUDING_PUNCTUATION {
+        add_text($1.text);
+    }
+    ;
+
+translation_text:
+    translation_character
+    | translation_text translation_character
+    ;
+
 translation_beginning:
     TRANSLATION_BEGIN {
         start_translation(TR_NORMAL);
@@ -984,11 +1015,12 @@ translation:
     translation_beginning TRANSLATION_END {
         end_translation();
     }
-    | translation_beginning text TRANSLATION_END {
+    | translation_beginning translation_text TRANSLATION_END {
         end_translation();
     }
     | TRANSLATION_CENTER_END {
         start_translation(TR_WITH_CENTER_END);
+        end_translation();
     }
     ;
 
@@ -1028,26 +1060,31 @@ syllable_with_notes:
         close_syllable(&@1);
     }
     | text translation OPENING_BRACKET notes {
+        save_text();
         close_syllable(&@1);
     }
     | HYPHEN translation OPENING_BRACKET notes {
         add_style(ST_VERBATIM);
         add_text(gregorio_strdup("\\GreForceHyphen"));
         end_style(ST_VERBATIM);
+        save_text();
         close_syllable(&@1);
     }
     | text HYPHEN translation OPENING_BRACKET notes {
         add_style(ST_VERBATIM);
         add_text(gregorio_strdup("\\GreForceHyphen"));
         end_style(ST_VERBATIM);
+        save_text();
         close_syllable(&@1);
     }
     | PROTRUDING_PUNCTUATION translation OPENING_BRACKET notes {
         add_auto_protrusion($1.text);
+        save_text();
         close_syllable(&@1);
     }
     | text PROTRUDING_PUNCTUATION translation OPENING_BRACKET notes {
         add_auto_protrusion($2.text);
+        save_text();
         close_syllable(&@1);
     }
     ;

tex/gregoriotex-syllable.tex

@@ -294,7 +294,7 @@
           % clivis alignment
           \gre@widthof{\gre@endsyllablepart}%
         \else%
-          \gre@widthof{\gre@nextendsyllablepart}%
+          \gre@widthof{\gre@evaluatenextsyllable{\gre@nextendsyllablepart}}%
         \fi%
         \gre@debugmsg{ifdim}{ temp@three > clivisalignmentmin}%
         \ifdim\gre@dimen@temp@three >\gre@space@dimen@clivisalignmentmin\relax%
@@ -664,8 +664,23 @@
     ]%
 }%
 
+\newif\ifgre@evaluatingnextsyllable%
+\gre@evaluatingnextsyllablefalse%
+\def\gre@evaluatenextsyllable#1{%
+  \gre@evaluatingnextsyllabletrue%
+  #1%
+  \gre@evaluatingnextsyllablefalse%
+}%
+
 \newif\ifgre@showhyphenafterthissyllable%
-\def\GreForceHyphen{\global\gre@showhyphenafterthissyllabletrue\gre@debugmsg{hyphen}{Forcing hyphen in gabc}}
+\def\GreForceHyphen{%
+  \ifgre@evaluatingnextsyllable%
+    -%
+  \else%
+    \global\gre@showhyphenafterthissyllabletrue%
+    \gre@debugmsg{hyphen}{Forcing hyphen in gabc}%
+  \fi%
+}%
 \def\GreEmptyFirstSyllableHyphen{\ifgre@forceemptyfirstsyllablehyphen\GreForceHyphen\fi}%
 
 % if an hyphen maybe be added by lua for this syllable. When syllable is not end of word and
@@ -880,7 +895,7 @@
   % by default, gre@attr@dash will be 2
   \gre@attr@dash=2\relax %
   #5%
-  \gre@calculate@nextbegindifference{\gre@emit@endsyllablepartfornextsyllable}{\gre@nextfirstsyllablepart}{\gre@nextmiddlesyllablepart}{\gre@nextendsyllablepart}{#7}%
+  \gre@calculate@nextbegindifference{\gre@emit@endsyllablepartfornextsyllable}{\gre@evaluatenextsyllable{\gre@nextfirstsyllablepart}}{\gre@evaluatenextsyllable{\gre@nextmiddlesyllablepart}}{\gre@evaluatenextsyllable{\gre@nextendsyllablepart}}{#7}%
   \gre@unsetfixednexttextformat %
   \ifgre@showlyrics%
     \setbox\gre@box@syllabletext=\hbox{\gre@emit@syllabletext{\gre@pointandclick{\gre@firstsyllablepart\gre@middlesyllablepart\gre@emit@endsyllablepart}{#6}}}%
@@ -936,7 +951,7 @@
       \fi%
     \fi %
     % recomputing end difference and final skip with the final hyphen
-    \gre@calculate@nextbegindifference{\gre@emit@endsyllablepartfornextsyllable}{\gre@nextfirstsyllablepart}{\gre@nextmiddlesyllablepart}{\gre@nextendsyllablepart}{#7}%
+    \gre@calculate@nextbegindifference{\gre@emit@endsyllablepartfornextsyllable}{\gre@evaluatenextsyllable{\gre@nextfirstsyllablepart}}{\gre@evaluatenextsyllable{\gre@nextmiddlesyllablepart}}{\gre@evaluatenextsyllable{\gre@nextendsyllablepart}}{#7}%
     \gre@calculate@enddifference{\wd\gre@box@syllablenotes}{\wd\gre@box@syllabletext}{\gre@dimen@textaligncenter}{\gre@dimen@notesaligncenter}{0}%
     \gre@calculate@syllablefinalskip{#4}{\gre@count@temp@one}%
   \else %
@@ -986,7 +1001,7 @@
     \GreNoBreak %
   \fi%
   % we call end of syllable
-  \gre@syllable@end{#7}{\gre@nextfirstsyllablepart\gre@nextmiddlesyllablepart\gre@nextendsyllablepart}{#4}%
+  \gre@syllable@end{#7}{\gre@evaluatenextsyllable{\gre@nextfirstsyllablepart\gre@nextmiddlesyllablepart\gre@nextendsyllablepart}}{#4}%
   \gre@push@endsyllable{#6}\relax %
   \global\gre@dimen@notesaligncenter=0pt\relax% very important, see flat and natural
   \gre@unsetfixedtextformat %
@@ -1168,7 +1183,7 @@
   \gre@dimen@begindifference=\dimexpr(\gre@dimen@notesaligncenter - \gre@dimen@textaligncenter)\relax%
   \gre@calculate@enddifference{\wd\gre@box@syllablenotes}{\wd\gre@box@syllabletext}{\gre@dimen@textaligncenter}{\gre@dimen@notesaligncenter}{1}%
   #5%
-  \gre@calculate@nextbegindifference{\gre@emit@endsyllablepartfornextsyllable}{\gre@nextfirstsyllablepart}{\gre@nextmiddlesyllablepart}{\gre@nextendsyllablepart}{#7}%
+  \gre@calculate@nextbegindifference{\gre@emit@endsyllablepartfornextsyllable}{\gre@evaluatenextsyllable{\gre@nextfirstsyllablepart}}{\gre@evaluatenextsyllable{\gre@nextmiddlesyllablepart}}{\gre@evaluatenextsyllable{\gre@nextendsyllablepart}}{#7}%
   \gre@unsetfixednexttextformat %
   \gre@debugmsg{barspacing}{previousenddifference: \the\gre@dimen@previousenddifference}%
   \gre@debugmsg{barspacing}{begindifference: \the\gre@dimen@begindifference}%