fix 4.1 part of #922

CHANGELOG.md

@@ -7,6 +7,7 @@ As of v3.0.0 this project adheres to [Semantic Versioning](http://semver.org/).
 - New bar spacing algorithm now accounts for translations (and other below lyrics stuff).
 - Horizontal episema on initio debilis is now sized correctly (see [#880](https://github.com/gregorio-project/gregorio/issues/880)).
 - Elisions immediately after the vowel are now properly left out of the center (see [#907](https://github.com/gregorio-project/gregorio/issues/907))
+- Space between the text of two syllables of the same word when no hyphen is necessary is now strictly 0 (see [#922](https://github.com/gregorio-project/gregorio/issues/922))
 
 ### Changed
 - Adjustments to the heuristic for ledger lines to include adjacent notes (see [#862](https://github.com/gregorio-project/gregorio/issues/862)).
@@ -17,6 +18,7 @@ As of v3.0.0 this project adheres to [Semantic Versioning](http://semver.org/).
 ### Added
 - Controls for tuning horizontal episema vertical position.  See GregorioRef for details (for the change request, see [#872](https://github.com/gregorio-project/gregorio/issues/872)).
 - More dimensions are tunable: `overhepisemalowshift`, `overhepisemahighshift`, `underhepisemalowshift`, `underhepisemahighshift`, `hepisemamiddleshift`, `vepisemalowshift`, `vepisemahighshift`, `linepunctummorashift`, `spacepunctummorashift`, `spaceamonepespunctummorashift`, `lineporrectuspunctummorashift`, `spaceporrectuspunctummorashift`, and `raresignshift`.  See GregorioRef for details (for the change request, see comments in [#872](https://github.com/gregorio-project/gregorio/issues/872)).
+- A new dimension, `intersyllablespacestretchhyphen` is now available to add stretching in the case of syllables separated by an hyphen (see comments in [#922](https://github.com/gregorio-project/gregorio/issues/922))
 
 
 ## [4.1.0-beta3] - 2016-02-09

doc/Command_Index_User.tex

@@ -1180,6 +1180,11 @@ \subsection{Distances}\label{distances}
 Minimum space between notes of different syllables.
 \end{gdimension}
 
+\begin{gdimension}{intersyllablespacestretchhyphen}
+Stretching added in the case where the text of two syllables of the same word are
+separated with an automatic hyphen.
+\end{gdimension}
+
 \begin{gdimension}{interwordspacenotes}
 Minimum space between notes of syllables from different words.
 \end{gdimension}

doc/GregorioRef.lua

@@ -389,6 +389,7 @@ function GregorioRef.emit_extra_glyphs(csname)
 end
 
 function GregorioRef.emit_dimension(value)
+  texio.write_nl(value)
   value = string.gsub(value, '(-?%d+%.%d+)%s*(%a+)', [[\unit[%1]{%2}]])
   value = string.gsub(value, '(-?%d+%.)%s*(%a+)', [[\unit[%1]{%2}]])
   value = string.gsub(value, '(-?%.?%d+)%s*(%a+)', [[\unit[%1]{%2}]])

doc/GregorioRef.tex

@@ -124,12 +124,13 @@
 \makeatletter%
 \NewDocumentEnvironment{gdimension}{m}{\macroname{#1}{}{gsp-default.tex}}{%
 
-  \gre@rubberpermit{#1}%
+  \makeatletter\gre@rubberpermit{#1}%
   \ifgre@rubber%
     Default: \directlua{GregorioRef.emit_dimension("\luaescapestring{\csname gre@space@skip@#1\endcsname}")}
   \else%
     Default: \directlua{GregorioRef.emit_dimension("\luaescapestring{\csname gre@space@dimen@#1\endcsname}")}
   \fi%
+  \makeatother%
 }
 
 \newcommand{\writemode}[3]{%

tex/gregoriotex-spaces.tex

@@ -261,7 +261,7 @@
         \gre@skip@minNotesDistance=\gre@space@skip@interwordspacenotes\relax%
       \fi %
     \else %
-      \gre@skip@minNotesDistance=\gre@space@skip@intersyllablespacenotes\relax%
+      \gre@skip@minNotesDistance=\gre@space@dimen@intersyllablespacenotes\relax%
     \fi %
     \ifcase\gre@count@shiftaftermora\or\or\or\or %
       \ifgre@thisendswithmora %
@@ -277,7 +277,7 @@
     \ifnum#1=1\relax %
       \gre@skip@minNotesDistance=\gre@space@skip@interwordspacenotes@alteration\relax %
     \else %
-      \gre@skip@minNotesDistance=\gre@space@skip@intersyllablespacenotes@alteration\relax%
+      \gre@skip@minNotesDistance=\gre@space@dimen@intersyllablespacenotes@alteration\relax%
     \fi %
   \fi %
   \gre@debugmsg{syllablespacing}{ minNotesDistance = \the\gre@skip@minNotesDistance}%
@@ -317,11 +317,14 @@
   \gre@debugmsg{syllablespacing}{ minShiftText = \the\gre@skip@minShiftText}%
   \ifdim\gre@skip@minShiftNotes < \gre@skip@minShiftText %
     \global\gre@skip@syllablefinalskip = \gre@skip@minShiftText %
-    \gre@debugmsg{syllablespacing}{ syllablefinalskip = \the\gre@skip@minShiftText}%
   \else %
     \global\gre@skip@syllablefinalskip = \gre@skip@minShiftNotes %
-    \gre@debugmsg{syllablespacing}{ syllablefinalskip = \the\gre@skip@minShiftNotes}%
   \fi %
+  \ifgre@showhyphenafterthissyllable %
+    \gre@debugmsg{syllablespacing}{ add intersyllablespacestretchhyphen (\gre@space@skip@intersyllablespacestretchhyphen)}%
+    \advance\gre@skip@syllablefinalskip by \gre@space@skip@intersyllablespacestretchhyphen\relax%
+  \fi %
+  \gre@debugmsg{syllablespacing}{ syllablefinalskip = \the\gre@skip@syllablefinalskip}%
   \relax %
 }
 
@@ -1009,6 +1012,8 @@
     {minimalspaceatlinebeginning}{\gre@rubberfalse}%
     {manualinitialwidth}{\gre@rubberfalse}%
     {annotationseparation}{\gre@rubberfalse}%
+    {intersyllablespacenotes}{\gre@rubberfalse}%
+    {intersyllablespacenotes@alteration}{\gre@rubberfalse}%
     {annotationraise}{\gre@rubberfalse}%
     {commentaryseparation}{\gre@rubberfalse}%
     {commentaryraise}{\gre@rubberfalse}%
@@ -1193,6 +1198,15 @@
   \ifgre@scale@intersyllablespacenotes%
     \gre@changeonedimenfactor{intersyllablespacenotes}{#1}{#2}%
   \fi%
+  \ifgre@scale@interwordspacenotes@alteration%
+    \gre@changeonedimenfactor{interwordspacenotes@alteration}{#1}{#2}%
+  \fi%
+  \ifgre@scale@intersyllablespacenotes@alteration%
+    \gre@changeonedimenfactor{intersyllablespacenotes@alteration}{#1}{#2}%
+  \fi%
+  \ifgre@scale@intersyllablespacestretchhyphen%
+    \gre@changeonedimenfactor{intersyllablespacestretchhyphen}{#1}{#2}%
+  \fi%
   \ifgre@scale@interwordspacetext%
     \gre@changeonedimenfactor{interwordspacetext}{#1}{#2}%
   \fi%

tex/gregoriotex-syllable.tex

@@ -928,15 +928,15 @@
             \gre@skip@syllablefinalskip=\gre@space@skip@interwordspacenotes\relax%
           \fi %
         \else %
-          \gre@skip@syllablefinalskip=\gre@space@skip@intersyllablespacenotes\relax%
+          \gre@skip@syllablefinalskip=\gre@space@dimen@intersyllablespacenotes\relax%
         \fi %
       \or %
         \gre@skip@syllablefinalskip=\gre@space@skip@notebarspace\relax%
       \or %
         \ifnum#4=1\relax %
           \gre@skip@syllablefinalskip=\gre@space@skip@interwordspacenotes@alteration\relax %
         \else %
-          \gre@skip@syllablefinalskip=\gre@space@skip@intersyllablespacenotes@alteration\relax%
+          \gre@skip@syllablefinalskip=\gre@space@dimen@intersyllablespacenotes@alteration\relax%
         \fi %
       \fi %
       \gre@debugmsg{syllablespacing}{ space after bar = \the\gre@skip@syllablefinalskip}%

tex/gsp-default.tex

@@ -126,8 +126,10 @@
 % minimal space between notes of different words
 \grecreatedim{interwordspacenotes}{0.27 cm plus 0.15 cm minus 0.05 cm}{scalable}%
 % minimal space between notes of the same syllable.
-% Warning: always keep minus to 0; also keep plus very low, or some words won't be hyphenated
-\grecreatedim{intersyllablespacenotes}{0.24 cm plus 0.04cm minus 0cm}{scalable}%
+\grecreatedim{intersyllablespacenotes}{0.24 cm}{scalable}%
+% stretching added in the case where the text of two syllables of the same word are
+% separated with an automatic hyphen
+\grecreatedim{intersyllablespacestretchhyphen}{0cm plus 0.05cm}{scalable}%
 % minimal space between letters of different words. Makes sense to have
 % the same plus and minus as interwordspacenotes.
 \grecreatedim{interwordspacetext}{0.38 cm plus 0.15 cm minus 0.05 cm}{scalable}%
@@ -137,7 +139,7 @@
 % versions of note spaces when the first note of the second syllable is an alteration
 % those are used in euouae blocks
 \grecreatedim{interwordspacenotes@alteration}{0.1 cm plus 0.07 cm minus 0.01 cm}{scalable}%
-\grecreatedim{intersyllablespacenotes@alteration}{0.1 cm plus 0.04 cm minus 0 cm}{scalable}%
+\grecreatedim{intersyllablespacenotes@alteration}{0.1 cm}{scalable}%
 % space between notes of a bivirga or trivirga
 \grecreatedim{bitrivirspace}{0.06927 cm plus 0.00182 cm minus 0.00546 cm}{scalable}%
 % space between notes of a bistropha or tristrophae
@@ -202,7 +204,7 @@
 % minimal space between a note and a bar
 \grecreatedim{notebarspace}{0.31903 cm plus 0.27345 cm minus 0.02824 cm}{scalable}%
 % maximal space between two syllables for which we consider a dash is not needed
-\grecreatedim{maximumspacewithoutdash}{0.02 cm}{scalable}%
+\grecreatedim{maximumspacewithoutdash}{0 cm}{scalable}%
 % an extensible space for the beginning of lines
 \grecreatedim{afterclefnospace}{0 cm plus 0.27345 cm minus 0 cm}{scalable}%
 % space between the initial and the beginning of the score