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 = "copyaccents",
                },
             -- presets.addmathkerns { },
                {
                    tweak = "checkspacing",
                },
                {
                    tweak = "addscripts",
                },
                {
                    tweak = "accentdimensions",
                },
                -- 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 = "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 = "alternatefences",    feature = 'cv05', value = 2,        comment = "Alternate parentheses and braces"     },
            { name = "alternateintegrals", feature = 'cv03', value = 2,        comment = "Serif integrals"                      },
            { 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"                          },
            --
            -- 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"                     },
        },
        --
     },
}