homalg-project · mohamed-barakat · Jul 15, 2026 · Jul 15, 2026 · Jul 15, 2026 · Jul 15, 2026
diff --git a/AdditiveClosuresForCAP/PackageInfo.g b/AdditiveClosuresForCAP/PackageInfo.g
@@ -10,7 +10,7 @@ SetPackageInfo( rec(
 
 PackageName := "AdditiveClosuresForCAP",
 Subtitle := "Additive closures for pre-additive categories",
-Version := "2026.07-02",
+Version := "2026.07-03",
 Date := (function ( ) if IsBound( GAPInfo.SystemEnvironment.GAP_PKG_RELEASE_DATE ) then return GAPInfo.SystemEnvironment.GAP_PKG_RELEASE_DATE; else return Concatenation( ~.Version{[ 1 .. 4 ]}, "-", ~.Version{[ 6, 7 ]}, "-01" ); fi; end)( ),
 License := "GPL-2.0-or-later",
 
@@ -131,7 +131,7 @@ PackageDoc := rec(
 
 Dependencies := rec(
   GAP := ">= 4.13.0",
-  NeededOtherPackages := [ [ "CAP", ">= 2026.07-01" ],
+  NeededOtherPackages := [ [ "CAP", ">= 2026.07-03" ],
                            [ "GradedRingForHomalg", ">= 2026.04-01" ],
                            [ "MonoidalCategories", ">= 2026.06-01" ],
                          ],

diff --git a/AdditiveClosuresForCAP/gap/AdditiveClosure.gi b/AdditiveClosuresForCAP/gap/AdditiveClosure.gi
@@ -1740,7 +1740,6 @@ InstallMethod( DisplayString,
 
 end );
 
-#= comment for Julia
 ##
 InstallMethod( LaTeXOutput,
           [ IsAdditiveClosureObject ],
@@ -1757,9 +1756,9 @@ InstallMethod( LaTeXOutput,
           List( objs,
               function( pair )
                 local s;
-                s := Concatenation( "{", LaTeXOutput( pair[ 1 ] ), "}" );
+                s := Concatenation( LATEX_LBRACE, LaTeXOutput( pair[ 1 ] ), LATEX_RBRACE );
                 if pair[ 2 ] <> 1 then
-                    s := Concatenation( s, "^{\\oplus ", String( pair[ 2 ] ), "}" );
+                    s := Concatenation( s, "^", LATEX_LBRACE, "\\oplus ", String( pair[ 2 ] ), LATEX_RBRACE );
                 fi;
                 return s;
               end ),
@@ -1771,37 +1770,39 @@ end );
 ##
 InstallMethod( LaTeXOutput,
           [ IsAdditiveClosureMorphism ],
-
-  function( morphism )
-    local matrix, str;
-
-    matrix := MorphismMatrix( morphism );
-
-    if ForAny( List( [ Source( morphism ), Range( morphism ) ], ObjectList ), IsEmpty ) then
-        str := "\\\\";
-    else
-        str := JoinStringsWithSeparator(
-              List( matrix, row -> JoinStringsWithSeparator(
-                                      List( row, m -> LaTeXOutput( m : OnlyDatum := true ) ),
-                                      "\&" ) ),
-              "\\\\ \n"
-            );
-    fi;
-
-    str :=  Concatenation( "\\begin{pmatrix}", str, "\\end{pmatrix}" );
-
-    if ValueOption( "OnlyDatum" ) = true then
-        return str;
-    fi;
-
-    return Concatenation(
-              LaTeXOutput( Source( morphism ) ),
-              "\\xrightarrow{", str, "}",
-              LaTeXOutput( Range( morphism ) )
-            );
-
-end );
-# =#
+  FunctionWithNamedArguments(
+    [ [ "OnlyDatum", false ] ],
+    function( CAP_NAMED_ARGUMENTS, morphism )
+      local matrix, str;
+
+      matrix := MorphismMatrix( morphism );
+
+      if ForAny( List( [ Source( morphism ), Range( morphism ) ], ObjectList ), IsEmpty ) then
+          str := "\\\\";
+      else
+          str := JoinStringsWithSeparator(
+                List( matrix, row -> JoinStringsWithSeparator(
+                                        List( row, m -> LaTeXOutput( m : OnlyDatum := true ) ),
+                                        "&" ) ),
+                "\\\\ \n"
+              );
+      fi;
+
+      str :=  Concatenation( "\\begin", LATEX_LBRACE, "pmatrix", LATEX_RBRACE, str, "\\end", LATEX_LBRACE, "pmatrix", LATEX_RBRACE );
+
+      if CAP_NAMED_ARGUMENTS.OnlyDatum = true then
+          return str;
+      fi;
+
+      return Concatenation(
+                LaTeXOutput( Source( morphism ) ),
+                "\\xrightarrow", LATEX_LBRACE, str, LATEX_RBRACE,
+                LaTeXOutput( Range( morphism ) )
+              );
+
+    end
+  )
+);
 
 ####################################
 ##

diff --git a/AdditiveClosuresForCAP/gap/CategoryOfRows.gi b/AdditiveClosuresForCAP/gap/CategoryOfRows.gi
@@ -1493,48 +1493,49 @@ InstallMethod( DisplayString,
 
 end );
 
-#= comment for Julia
 ##
 InstallMethod( LaTeXOutput,
                [ IsCategoryOfRowsObject ],
 
   function( obj )
 
-    return Concatenation( LaTeXOutput( UnderlyingRing( CapCategory( obj ) ) ), "^{1 \\times ", String( RankOfObject( obj ) ), "}" );
+    return Concatenation( LaTeXOutput( UnderlyingRing( CapCategory( obj ) ) ), "^", LATEX_LBRACE, "1 \\times ", String( RankOfObject( obj ) ), LATEX_RBRACE );
 
 end );
 
 ##
 InstallMethod( LaTeXOutput,
                [ IsCategoryOfRowsMorphism ],
-
-  function( mor )
-    local matrix;
-
-    matrix := LaTeXOutput( UnderlyingMatrix( mor ) );
-
-    if ValueOption( "OnlyDatum" ) = true then
-
-       return Concatenation(
-        """{\color{blue}{""",
-        matrix,
-        """}}"""
-      );
+  FunctionWithNamedArguments(
+    [ [ "OnlyDatum", false ] ],
+    function( CAP_NAMED_ARGUMENTS, mor )
+      local matrix;
 
-    else
+      matrix := LaTeXOutput( UnderlyingMatrix( mor ) );
 
-      return Concatenation(
-        LaTeXOutput( Source( mor ) ),
-        """{\color{blue}{\xrightarrow{""",
-        matrix,
-        """}}}""",
-        LaTeXOutput( Range( mor ) )
-      );
+      if CAP_NAMED_ARGUMENTS.OnlyDatum = true then
+
+         return Concatenation(
+          LATEX_LBRACE, "\\color", LATEX_LBRACE, "blue", LATEX_RBRACE, LATEX_LBRACE,
+          matrix,
+          LATEX_RBRACE, LATEX_RBRACE
+        );
+
+      else
+
+        return Concatenation(
+          LaTeXOutput( Source( mor ) ),
+          LATEX_LBRACE, "\\color", LATEX_LBRACE, "blue", LATEX_RBRACE, LATEX_LBRACE, "\\xrightarrow", LATEX_LBRACE,
+          matrix,
+          LATEX_RBRACE, LATEX_RBRACE, LATEX_RBRACE,
+          LaTeXOutput( Range( mor ) )
+        );
+
+      fi;
 
-    fi;
-
-end );
-# =#
+    end
+  )
+);
 
 ####################################
 ##

diff --git a/CAP/PackageInfo.g b/CAP/PackageInfo.g
@@ -10,7 +10,7 @@ SetPackageInfo( rec(
 
 PackageName := "CAP",
 Subtitle := "Categories, Algorithms, Programming",
-Version := "2026.07-02",
+Version := "2026.07-03",
 Date := (function ( ) if IsBound( GAPInfo.SystemEnvironment.GAP_PKG_RELEASE_DATE ) then return GAPInfo.SystemEnvironment.GAP_PKG_RELEASE_DATE; else return Concatenation( ~.Version{[ 1 .. 4 ]}, "-", ~.Version{[ 6, 7 ]}, "-01" ); fi; end)( ),
 License := "GPL-2.0-or-later",
 

diff --git a/CAP/gap/ToolsForCategories.gi b/CAP/gap/ToolsForCategories.gi
@@ -8,6 +8,12 @@
 # some options should affect the whole function stack and should hence not be consumed by FunctionWithNamedArguments
 BindGlobal( "CAP_INTERNAL_GLOBAL_OPTIONS", [ "no_precompiled_code" ] );
 
+## LaTeX bracket constants: used in Concatenation to avoid transpiler { -> [ conversion in Julia
+#= comment for Julia
+BindGlobal( "LATEX_LBRACE", "{" );
+BindGlobal( "LATEX_RBRACE", "}" );
+# =#
+
 InstallGlobalFunction( "FunctionWithNamedArguments", function ( specification, func )
 
     Assert( 0, IsList( specification ) );

diff --git a/FreydCategoriesForCAP/PackageInfo.g b/FreydCategoriesForCAP/PackageInfo.g
@@ -10,7 +10,7 @@ SetPackageInfo( rec(
 
 PackageName := "FreydCategoriesForCAP",
 Subtitle := "Freyd categories - Formal (co)kernels for additive categories",
-Version := "2026.06-04",
+Version := "2026.07-01",
 Date := (function ( ) if IsBound( GAPInfo.SystemEnvironment.GAP_PKG_RELEASE_DATE ) then return GAPInfo.SystemEnvironment.GAP_PKG_RELEASE_DATE; else return Concatenation( ~.Version{[ 1 .. 4 ]}, "-", ~.Version{[ 6, 7 ]}, "-01" ); fi; end)( ),
 License := "GPL-2.0-or-later",
 
@@ -101,7 +101,7 @@ PackageDoc := rec(
 
 Dependencies := rec(
   GAP := ">= 4.13.0",
-  NeededOtherPackages := [ [ "CAP", ">= 2026.05-07" ],
+  NeededOtherPackages := [ [ "CAP", ">= 2026.07-03" ],
                            [ "MatricesForHomalg", ">= 2026.04-01" ],
                            [ "GradedRingForHomalg", ">= 2026.04-01" ],
                            [ "AdditiveClosuresForCAP", ">= 2026.06-02" ],

diff --git a/FreydCategoriesForCAP/gap/AdelmanCategory.gi b/FreydCategoriesForCAP/gap/AdelmanCategory.gi
@@ -1405,6 +1405,7 @@ InstallMethod( Display,
     Display( CorelationMorphism( object ) );
 
 end );
+# =#
 
 ##
 InstallMethod( LaTeXOutput,
@@ -1426,20 +1427,20 @@ InstallMethod( LaTeXOutput,
 
     corel_dat := LaTeXOutput( corel : OnlyDatum := true );
 
-    m := Concatenation( """{  \color{blue}{""", m, "} }" );
+    m := Concatenation( LATEX_LBRACE, "  \\color", LATEX_LBRACE, "blue", LATEX_RBRACE, LATEX_LBRACE, m, LATEX_RBRACE, " ", LATEX_RBRACE );
 
     return Concatenation(
-      """{ \big(""",
+      LATEX_LBRACE, " \\big(",
       r,
-      "\\xrightarrow{",
+      "\\xrightarrow", LATEX_LBRACE,
       rel_dat,
-      "}",
+      LATEX_RBRACE,
       m,
-      "\\xrightarrow{",
+      "\\xrightarrow", LATEX_LBRACE,
       corel_dat,
-      "}",
+      LATEX_RBRACE,
       c,
-      """\big)}"""
+      "\\big)", LATEX_RBRACE
     );
 
 end );
@@ -1454,14 +1455,13 @@ InstallMethod( LaTeXOutput,
 
     return Concatenation(
       LaTeXOutput( Source( mor ) ),
-      """{\color{blue}{\xrightarrow{""",
+      LATEX_LBRACE, "\\color", LATEX_LBRACE, "blue", LATEX_RBRACE, LATEX_LBRACE, "\\xrightarrow", LATEX_LBRACE,
       datum,
-      """}}}""",
+      LATEX_RBRACE, LATEX_RBRACE, LATEX_RBRACE,
       LaTeXOutput( Range( mor ) )
     );
 
 end );
-# =#
 
 ####################################
 ##

diff --git a/FreydCategoriesForCAP/gap/FreydCategory.gi b/FreydCategoriesForCAP/gap/FreydCategory.gi
@@ -2000,12 +2000,11 @@ InstallMethod( DisplayString,
 
 end );
 
-#= comment for Julia
 ##
 InstallMethod( LaTeXOutput,
                [ IsFreydCategoryObject ],
   function( object )
-    local rel, corel, r, m, c, rel_dat, corel_dat;
+    local rel, r, m, rel_dat;
 
     rel := ObjectDatum( object );
 
@@ -2018,45 +2017,48 @@ InstallMethod( LaTeXOutput,
     return Concatenation(
       "\\big(",
       r,
-      "\\xrightarrow{",
+      "\\xrightarrow", LATEX_LBRACE,
       rel_dat,
-      "}",
+      LATEX_RBRACE,
       m,
-      "\\big)_{\\mathcal{A}}"
+      "\\big)_", LATEX_LBRACE, "\\mathcal", LATEX_LBRACE, "A", LATEX_RBRACE, LATEX_RBRACE
     );
 
 end );
 
 ##
 InstallMethod( LaTeXOutput,
                [ IsFreydCategoryMorphism ],
-  function( mor )
-    local datum;
-
-    datum := LaTeXOutput( MorphismDatum( mor ) : OnlyDatum := true );
-
-    if ValueOption( "OnlyDatum" ) = true then
-
-       return Concatenation(
-        """{\color{blue}{""",
-        datum,
-        """}}"""
-      );
+  FunctionWithNamedArguments(
+    [ [ "OnlyDatum", false ] ],
+    function( CAP_NAMED_ARGUMENTS, mor )
+      local datum;
 
-    else
+      datum := LaTeXOutput( MorphismDatum( mor ) : OnlyDatum := true );
 
-      return Concatenation(
-        "{ \\tiny ", LaTeXOutput( Source( mor ) ), "}",
-        """{\color{blue}{\xrightarrow{""",
-        datum,
-        """}}}""",
-        "{ \\tiny ", LaTeXOutput( Range( mor ) ), "}"
-      );
+      if CAP_NAMED_ARGUMENTS.OnlyDatum = true then
+
+         return Concatenation(
+          LATEX_LBRACE, "\\color", LATEX_LBRACE, "blue", LATEX_RBRACE, LATEX_LBRACE,
+          datum,
+          LATEX_RBRACE, LATEX_RBRACE
+        );
+
+      else
+
+        return Concatenation(
+          LATEX_LBRACE, " \\tiny ", LaTeXOutput( Source( mor ) ), LATEX_RBRACE,
+          LATEX_LBRACE, "\\color", LATEX_LBRACE, "blue", LATEX_RBRACE, LATEX_LBRACE, "\\xrightarrow", LATEX_LBRACE,
+          datum,
+          LATEX_RBRACE, LATEX_RBRACE, LATEX_RBRACE,
+          LATEX_LBRACE, " \\tiny ", LaTeXOutput( Range( mor ) ), LATEX_RBRACE
+        );
+
+      fi;
 
-    fi;
-
-end );
-# =#
+    end
+  )
+);
 
 ####################################################################################
 ##