support a new instrument category for crepbook class

instrument may be guitar or ukulele
a new macro \utab, similar to \gtab may is also introduced
this macro can be used in sg files to indicate ukulele diagrams

templates/ancient.tmpl

@@ -29,6 +29,7 @@
 %%:  {"name":"author", "description":"Author", "default":"Crep (R. Goffe) \\and Lohrun (A. Dupas)", "mandatory":true},
 %%:  {"name":"booktype", "description":"Type", "type":"enum", "values":["chorded","lyric"], "default":"chorded", "mandatory":true},
 %%:  {"name":"lang", "description":"Language", "default":"english"},
+%%:  {"name":"instruments", "description":"Instruments", "type":"flag", "values":["guitar","ukulele"], "join":",", "mandatory":true, "default":["guitar"]},
 %%:  {"name":"bookoptions", "description":"Options", "type":"flag", "values":["diagram","lilypond","pictures","tabs"], "join":",", "mandatory":true, "default":["diagram","pictures"]},
 %%:  {"name":"version", "description":"Version", "default":"3.5.3"},
 %%:  {"name":"subtitle", "description":"Subtitle"},
@@ -45,7 +46,7 @@
 %%:]
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % begin document
-\documentclass[\getbooktype,\getbookoptions,\getmainfontsize]{tex/crepbook}
+\documentclass[\getbooktype,\getinstruments,\getbookoptions,\getmainfontsize]{tex/crepbook}
 \usepackage[utf8]{inputenc}
 \usepackage[portuguese,english,spanish,french]{babel}
 \usepackage[T1]{fontenc}

templates/minimal.tmpl

@@ -27,12 +27,13 @@
 %%:[
 %%:  {"name":"booktype", "description":"Type", "type":"enum", "values":["chorded","lyric"], "default":"chorded", "mandatory":true},
 %%:  {"name":"lang", "description":"Language", "default":"english"},
+%%:  {"name":"instruments", "description":"Instruments", "type":"flag", "values":["guitar","ukulele"], "join":",", "mandatory":true, "default":["guitar"]},
 %%:  {"name":"bookoptions", "description":"Options", "type":"flag", "values":["diagram","lilypond","tabs","pictures"], "join":",", "mandatory":true, "default":["pictures"]},
 %%:  {"name":"mainfontsize", "description":"Font Size", "type":"font", "default":"10"}
 %%:]
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % begin document
-\documentclass[\getbooktype,\getbookoptions,\getmainfontsize,noshading]{tex/crepbook}
+\documentclass[\getbooktype,\getinstruments,\getbookoptions,\getmainfontsize,noshading]{tex/crepbook}
 \usepackage[utf8]{inputenc}
 \usepackage[T1]{fontenc}
 \usepackage{lmodern}

templates/patacrep-en.tmpl

@@ -29,6 +29,7 @@
 %%:  {"name":"author", "description":"Author", "default":"Crep (R. Goffe) \\and Lohrun (A. Dupas)", "mandatory":true},
 %%:  {"name":"booktype", "description":"Type", "type":"enum", "values":["chorded","lyric"], "default":"chorded", "mandatory":true},
 %%:  {"name":"lang", "description":"Language", "default":"english"},
+%%:  {"name":"instruments", "description":"Instruments", "type":"flag", "values":["guitar","ukulele"], "join":",", "mandatory":true, "default":["guitar"]},
 %%:  {"name":"bookoptions", "description":"Options", "type":"flag", "values":["diagram","lilypond","pictures","tabs"], "join":",", "mandatory":true, "default":["diagram","pictures"]},
 %%:  {"name":"version", "description":"Version", "default":"3.5.3"},
 %%:  {"name":"subtitle", "description":"Subtitle"},
@@ -45,7 +46,7 @@
 %%:]
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % begin document
-\documentclass[\getbooktype,\getbookoptions,\getmainfontsize]{tex/crepbook}
+\documentclass[\getbooktype,\getinstruments,\getbookoptions,\getmainfontsize]{tex/crepbook}
 \usepackage[utf8]{inputenc}
 \usepackage[T1]{fontenc}
 \usepackage{lmodern}

templates/patacrep.tmpl

@@ -29,6 +29,7 @@
 %%:  {"name":"author", "description":"Author", "default":"Crep (R. Goffe) \\and Lohrun (A. Dupas)", "mandatory":true},
 %%:  {"name":"booktype", "description":"Type", "type":"enum", "values":["chorded","lyric"], "default":"chorded", "mandatory":true},
 %%:  {"name":"lang", "description":"Language", "default":"french"},
+%%:  {"name":"instruments", "description":"Instruments", "type":"flag", "values":["guitar","ukulele"], "join":",", "mandatory":true, "default":["guitar"]},
 %%:  {"name":"bookoptions", "description":"Options", "type":"flag", "values":["diagram","importantdiagramonly","lilypond","pictures","tabs","repeatchords"], "join":",", "mandatory":true, "default":["diagram","pictures"]},
 %%:  {"name":"version", "description":"Version", "default":"3.5.3"},
 %%:  {"name":"subtitle", "description":"Subtitle"},
@@ -45,7 +46,7 @@
 %%:]
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % begin document
-\documentclass[\getbooktype,\getbookoptions,\getmainfontsize]{tex/crepbook}
+\documentclass[\getbooktype,\getinstruments,\getbookoptions,\getmainfontsize]{tex/crepbook}
 \usepackage[utf8]{inputenc}
 \usepackage[T1]{fontenc}
 \usepackage{lmodern}

tex/crepbook.cls

@@ -13,6 +13,8 @@
 \newif{\ifimportantdiagramonly}
 \newif{\ifpictures}
 \newif{\ifnorepeatchords}
+\newif{\ifukulele}
+\newif{\ifguitar}
 
 \tabsfalse
 \lilypondfalse
@@ -20,6 +22,8 @@
 \picturesfalse
 \importantdiagramonlyfalse
 \norepeatchordstrue
+\ukulelefalse
+\guitarfalse
 
 % Options
 \DeclareOption{tabs}{\tabstrue}
@@ -33,6 +37,10 @@
 \DeclareOption{nopictures}{\picturesfalse}
 \DeclareOption{norepeatchords}{\norepeatchordstrue}
 \DeclareOption{repeatchords}{\norepeatchordsfalse}
+\DeclareOption{ukulele}{\ukuleletrue}
+\DeclareOption{noukulele}{\ukulelefalse}
+\DeclareOption{guitar}{\guitartrue}
+\DeclareOption{noguitar}{\guitarfalse}
 
 \DeclareOption{10pt}{\PassOptionsToClass{\CurrentOption}{article}}
 \DeclareOption{11pt}{\PassOptionsToClass{\CurrentOption}{article}}
@@ -224,25 +232,58 @@
   \fi%
 }%
 
+\let\utab\gtab
+\let\utab@Original\utab
+\newcommand{\utab@Hidden}[2]{}%
+
 \let\gtab@Original\gtab
 \newcommand{\gtab@Hidden}[2]{}%
+
 \ifnodiagram%
 \renewcommand{\gtab}{\@ifstar
   \gtab@Hidden%
   \gtab@Hidden%
 }
+\renewcommand{\utab}{\@ifstar
+  \utab@Hidden%
+  \utab@Hidden%
+}
 \else%
 \ifimportantdiagramonly%
 \renewcommand{\gtab}{\@ifstar
   \gtab@Original%
   \gtab@Hidden%
 }
+\renewcommand{\utab}{\@ifstar
+  \utab@Original%
+  \utab@Hidden%
+}
 \else%
 \renewcommand{\gtab}{\@ifstar
   \gtab@Original%
   \gtab@Original%
 }
+\renewcommand{\utab}{\@ifstar
+  \utab@Original%
+  \utab@Original%
+}
+\fi%
+\fi%
+
+\ifguitar%
+\else
+\renewcommand{\gtab}{\@ifstar
+  \gtab@Hidden%
+  \gtab@Hidden%
+}
 \fi%
+
+\ifukulele%
+\else
+\renewcommand{\utab}{\@ifstar
+  \utab@Hidden%
+  \utab@Hidden%
+}
 \fi%
 
 \newcommand{\lilypond}[1]{%