local common  = fonts.goodies.load("common-math.lfg")
local presets = common.mathematics.tweaks.presets

return {
    name        = "Pennstander",
    version     = "0.1",
    comment     = "Goodies that complement Pennstander.",
 -- author      = "Julius Ross", -- replaced by more extensive variant by:
    author      = "Hans Hagen & Mikael Sundqvist",
    copyright   = "ConTeXt development team",
    mathematics = {
        parameters = {
            PrimeShiftUpCramped             = "SuperscriptShiftUp",
         -- RadicalKernBeforeExtensible     = 100,
         -- RadicalDisplayStyleVerticalGap  = 0,
            RadicalDegreeBottomRaisePercent = 60,
            RadicalKernAfterDegree          = -300,
        },
        tweaks = {
            aftercopying = {
--                {
--                    tweak = "accentdimensions",
--                },
               {
                   tweak = "checkspacing",
               },
               {
                   tweak = "kernpairs",  -- can I put this instead in the font?
                   list = {
                       [0x002F] = { -- slash
                           [0x007C] = .2,
                       },
                   },
               },
               presets.fallbacks            { },
               presets.moveitalics          { correct = true },
               presets.moveitalics          { correct = true, letters = true },
               presets.moveintegrals        { },
               presets.wipeitalics          { },
            -- {
            --     tweak   = "fixvariants",
            --     comment = "keep this as an example",
            --     list    = {
            --         -- we also need to set the unicodes
            --         [0x0028] = { template = 0x005B, index = 1 },
            --         [0x0029] = { template = 0x005D, index = 1 },
            --         [0x007C] = { template = 0x005B, index = 1 },
            --         [0x2016] = { template = 0x005B, index = 1 },
            --         [0x2980] = { template = 0x005B, index = 1 },
            --     }
            -- },
               {
                   -- needed for stupid corner kerns
                   tweak = "simplifykerns",
               },
               {
                   tweak = "checkaccents",
               },
               {
                   tweak = "extendaccents",
               },
               {
                   tweak = "flattenaccents",
               },
--                {
--                    tweak = "fixaccents",
--                },
-- {
--     tweak = "fixradicals",
-- },
               {
                   tweak = "copyaccents",
               },
            -- presets.addmathkerns { },
               {
                   tweak = "checkspacing",
               },
               {
                   tweak = "addscripts",
               },
{
   tweak = "accentdimensions", -- twice ?
},
            -- Assume the font will be complete
            -- {
            --     tweak = "addrules",
            -- },
            -- Maybe not, since font is squarish
            -- {
            --     tweak    = "replacerules",
            --     fraction = { height = .254, yoffset = .746, leftoffset = .1, rightoffset = .1,  },
            --     radical  = { height = .17, leftoffset = .1, rightoffset = .1, yoffset = .485, yscale = .65  },
            --     stacker  = { height = .254, yoffset = .746 },
            -- },
-- {
--     tweak    = "replacerules",
--     fraction = { height = .254, yoffset = .746, leftoffset = .1, rightoffset = .1,  },
--     radical  = { template = 0xE000, height = .17, leftoffset = .1, rightoffset = .1, yoffset = .485, yscale = .65  },
--     radical  = { height = .17, leftoffset = .1, rightoffset = .1, yoffset = .485, yscale = .65  },
--     stacker  = { height = .254, yoffset = .746 },
-- },
               {
                   tweak = "wipecues",
               },
            -- {
            --     tweak   = "addbars",
            --     advance = 0.175,
            -- },
               {
                   tweak = "addactuarian",
               },
               {
                   tweak = "addequals",
               },
               {
                   tweak   = "addfourier",
                   variant = 1,
               },
               {
                   tweak = "addprimed",
               },
           },
        },
     -- scales = {
     --     feature            = "pennstanderscale",
     --     scriptweight       =  80,
     --     scriptscriptweight = 140,
     -- },
        --
        -- First experiment:
        --
     -- alternates = {
     --     sstyrandom         = {             feature = "ssty", value = "selfrandom", comment = "Experiment" },
     --     random             = {             feature = "rand", value = "selfrandom", comment = "Experiment" },
     -- },
        --
        -- Hash based: order explicit with fallback
        --
     -- alternates = {
     -- 	--
     --  -- sstyrandom         = {             feature = "ssty", value = "selfrandom", comment = "Experiment" },
     --  -- random             = {             feature = "rand", value = "selfrandom", comment = "Experiment" },
     --    --
     --     -- The next alternates may supress randomness:
     --     --
     --     alternateletters   = { order =  1, feature = 'ss01', value = "yes",    comment = "Alternate a,g,I"                  },
     --     sharpletters       = { order =  1, feature = 'ss02', value = "yes",    comment = "Alternate A,M,N,V,W,Q,Z,v,z"      },
     --     alternatefour      = { order =  1, feature = 'ss03', value = "yes",    comment = "Alternate four"                   },
     --     straightfeet       = { order =  1, feature = 'ss04', value = "yes",    comment = "Alternate l,t"                    },
     --     simplifiedfraktur  = { order =  1, feature = 'ss05', value = "yes",    comment = "Simplified fraktur-like letters"  },
     --     alternateseven     = { order =  1, feature = 'ss07', value = "yes",    comment = "Alternate seven"                  },
     --     alternatefences    = { order =  1, feature = 'cv05', value = 2,        comment = "Alternate parentheses and braces" },
     --     alternateintegrals = { order =  1, feature = 'cv03', value = 2,        comment = "Serif integrals"                  },
     --     flair              = { order =  2, feature = 'ss20', value = "yes",    comment = "Extra flair throughout"           },
     --    --
     --     -- Now various random alternates:
     --    --
     --     randomfences       = { order = 10, feature = "cv01", value = "random", comment = "Random fences"                    },
     --     randomletters      = { order = 11, feature = "cv10", value = "random", comment = "Random letters"                   },
     --     randomnumerals     = { order = 12, feature = "cv04", value = "random", comment = "Random numerals"                  },
     --     randomintegrals    = { order = 13, feature = "cv02", value = "random", comment = "Random integrals"                 },
     --  -- randomsymbols      = { order = 14, feature = "cvXX", value = "random", comment = "Random symbols"                   },
     --     random             = { order = 15, feature = "rand", value = "random", comment = "All randoms"                      },
     --    --
     --     -- The rest is just for testing:
     --    --
     --     allrandomintegrals = { order = 14, feature = "cv06", value = "random", comment = "All random integrals"             },
     --     random0            = {             feature = "rand", value = false,    comment = "For testing only"                 },
     --     random1            = {             feature = "rand", value = 1,        comment = "For testing only"                 },
     --     random2            = {             feature = "rand", value = 2,        comment = "For testing only"                 },
     --     random3            = {             feature = "rand", value = 3,        comment = "For testing only"                 },
     --     random4            = {             feature = "rand", value = 4,        comment = "For testing only"                 },
     -- },
        --
        -- Array, order by index:
        --
        alternates = {
            --
            -- The next alternates may supress randomness:
            --
            { name = "alternateletters",   feature = "ss01", value = "yes",    comment = "Alternate a,g,I"                      },
            { name = "sharpletters",       feature = "ss02", value = "yes",    comment = "Alternate A,M,N,V,W,Q,Z,v,z"          },
            { name = "alternatefour",      feature = "ss03", value = "yes",    comment = "Alternate four"                       },
            { name = "straightfeet",       feature = "ss04", value = "yes",    comment = "Alternate l,t"                        },
            { name = "simplifiedfraktur",  feature = "ss05", value = "yes",    comment = "Simplified fraktur-like letters"      },
            { name = "alternateseven",     feature = "ss07", value = "yes",    comment = "Alternate seven"                      },
            { name = "flair",              feature = "ss20", value = "yes",    comment = "Extra flair throughout"               },
            --
            -- Now various random alternates:
            --
--             { name = "randomfences",       feature = "cv01", value = "random", comment = "Random fences"                        },
--             { name = "randomletters",      feature = "cv10", value = "random", comment = "Random letters"                       },
--             { name = "randomnumerals",     feature = "cv04", value = "random", comment = "Random numerals"                      },
--             { name = "randomintegrals",    feature = "cv02", value = "random", comment = "Random integrals"                     },
--          -- { name = "randomsymbols",      feature = "cvXX", value = "random", comment = "Random symbols"                       },
--             { name = "random",             feature = "rand", value = "random", comment = "All randoms"                          },
--             { name = "alternatefences",    feature = "cv05", value = 2,        comment = "Alternate parentheses and braces"     },
--             { name = "alternateintegrals", feature = "cv03", value = 2,        comment = "Serif integrals"                      },
            --
            -- The rest is just for testing:
            --
--             { name = "allrandomintegrals", feature = "cv06", value = "random", comment = "All random integrals"                 },
--             { name = "random0",            feature = "rand", value = false,    comment = "For testing only"                     },
--             { name = "random1",            feature = "rand", value = 1,        comment = "For testing only"                     },
--             { name = "random2",            feature = "rand", value = 2,        comment = "For testing only"                     },
--             { name = "random3",            feature = "rand", value = 3,        comment = "For testing only"                     },
--             { name = "random4",            feature = "rand", value = 4,        comment = "For testing only"                     },

            -- stylealternative=cv21,  % 40 41 123 125 fixed
            -- stylealternative=cv31,  % integrals fixed == ss20

            { name = "randomletters",     feature = "cv01", value = "random", comment = "letters"   },
            { name = "randomnumerals",    feature = "cv10", value = "random", comment = "numerals"  }, -- 49 50 53 120787 120803 120804 120807 120817 983740
            { name = "randomintegrals",   feature = "cv32", value = "random", comment = "integrals" }, -- 8747 8748 8749 8750 8751 8752 8753 8754 8755 10764 10765 10766 10767 10768 10769 10770 10771 10772 10773 10774 10775 10776 10777 10778 10779 10780
            { name = "randomfences",      feature = "cv20", value = "random", comment = "fences"    }, -- 40 41
            { name = "randomintegrals-1", feature = "cv30", value = "random", comment = "integrals" }, -- 8747 8748 8749 8750 8751 8752 8753 8754 8755 10764 10765 10766 10767 10768 10769 10772 10774 10775 10776 10777 10778 10779 10780
            { name = "randomintegrals-2", feature = "cv32", value = "random", comment = "integrals" }, -- 8747 8748 8749 8750 8751 8752 8753 8754 8755 10764 10765 10766 10767 10768 10769 10770 10771 10772 10773 10774 10775 10776 10777 10778 10779 10780
            { name = "randomfences-1",    feature = "cv20", value = "random", comment = "fences"    }, -- 40 41 91 93 123 125 8968 8969 8970 8971 10214 10215 10216 10217 random fences
            { name = "randomfences-2",    feature = "cv66", value = "random", comment = "fences"    }, -- 40 41

         -- { name = "aalt", feature = "aalt", value = "random" },
         -- { name = "cv01", feature = "cv01", value = "random" },
         -- { name = "cv10", feature = "cv10", value = "random" },
         -- { name = "cv20", feature = "cv20", value = "random" },
         -- { name = "cv21", feature = "cv21", value = "random" },
         -- { name = "cv30", feature = "cv30", value = "random" },
         -- { name = "cv31", feature = "cv31", value = "random" },
         -- { name = "cv32", feature = "cv32", value = "random" },
         -- { name = "cv66", feature = "cv66", value = "random" },
         -- { name = "dtls", feature = "dtls", value = "random" },
         -- { name = "frac", feature = "frac", value = "random" },
         -- { name = "ss01", feature = "ss01", value = "random" },
         -- { name = "ss02", feature = "ss02", value = "random" },
         -- { name = "ss03", feature = "ss03", value = "random" },
         -- { name = "ss04", feature = "ss04", value = "random" },
         -- { name = "ss05", feature = "ss05", value = "random" },
         -- { name = "ss07", feature = "ss07", value = "random" },
         -- { name = "ss20", feature = "ss20", value = "random" },
         -- { name = "ssty", feature = "ssty", value = "random" },
         -- { name = "zero", feature = "zero", value = "random" },

        },
       --
    },
}