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local dimensions, kerns  if CONTEXTLMTXMODE == 0 then

 -- local kern_250 = { bottomright = { { kern = -250 } }, force = true }

 -- kerns = {
 --     [0x1D449] = kern_250, --
 --     [0x1D44A] = kern_250, -- 𝑊
 -- }

    dimensions = {
        default = { -- experimental values
         -- [0x02044] = { xoffset = 275, width = 600 },
            -- primes
            [0xFE932] = { width =  200 },
            [0xFE933] = { width =  500 },
            [0xFE934] = { width =  800 },
            [0xFE935] = { width = 1100 },
            -- reverse primes
            [0xFE935] = { width =  200 },
            [0xFE936] = { width =  500 },
            [0xFE937] = { width =  800 },
        },
    }

end

-- When set this will bypass the italic correction hackery!
local integral_variants = {  bottomright = -0.20 }
-- local integral_top      = {  topright    =  0.05 }
local integral_bottom   = {  bottomright = -0.45 }


return {
    name = "lucida-opentype-math",
    version = "1.00",
    comment = "Goodies that complement lucida opentype.",
    author = "Hans Hagen & Mikael Sundqvist",
    copyright = "ConTeXt development team",
    mathematics = {
        parameters = {
            RadicalDisplayStyleVerticalGap  =  100,
            NoLimitSupFactor                =    0,
            NoLimitSubFactor                =  900,
            FractionRuleThickness           =   55,
         -- AccentBaseHeight                =  650,
            AccentBaseDepth                 =  150,
            RadicalDegreeBottomRaisePercent =   50,
            RadicalKernAfterDegree          = -600,
         -- RadicalRuleThickness            =   35, -- 40 in font (46 in demi)
            DelimiterPercent                =   90,
            DelimiterShortfall              =  400,
         -- DisplayOperatorMinHeight        = 1800, -- 1300 in font (only one)
            PrimeRaisePercent               =   60, -- 50 default
            PrimeRaiseComposedPercent       =   50, -- 25 default
        },
        tweaks = {
            aftercopying = {
                {
                    tweak    = "version",
                    expected = "Version 1.802",
                },
                -- {
                --     tweak = "substitutes",
                --     list  = {
                --         [0x2264] = "ss03",
                --         [0x2265] = "ss03",
                --     }
                -- },
                -- \definefontfeature[mathlucida][copymathscripts=yes]
                -- \definefontfeature[mathlucida][copymathscripts=yes,ss04=yes]
                -- 0xFEOO should be chancery style, if present
                {
                    tweak    = "variants",
                    kind     = "script",
                    feature  = "ss04",-- this changes to chancery style for lucida
                 -- feature  = false, -- use the saved ones (see typescript)
                    selector = 0xFE00,
                },
                -- 0xFEO1 should be roundhand style, if present
                {
                    tweak    = "variants",
                    kind     = "script",
                    selector = 0xFE01,
                },
                {
                    tweak = "dimensions",
                    list  = {
                        -- these we fix here
                        ["0x23DC.parts.1"]  = { xoffset = -0.075, height = .4, yoffset = -0.6 },
                        ["0x23DC.parts.2"]  = {                   height = .4, yoffset = -0.6 },
                        ["0x23DC.parts.3"]  = { xoffset =  0.075, height = .4, yoffset = -0.6 },
                        ["0x23DD.parts.1"]  = { xoffset = -0.075, depth  = .8, yoffset =  0.2 },
                        ["0x23DD.parts.2"]  = {                   depth  = .8, yoffset =  0.2 },
                        ["0x23DD.parts.3"]  = { xoffset =  0.075, depth  = .8, yoffset =  0.2 },
                        -- The < and > are slightly too small. We scale them by 867/795
                        ["0x003C"]          = { scale = 1.09057, width = 1.09057, height = 1.09057 },
                        ["0x003E"]          = { scale = 1.09057, width = 1.09057, height = 1.09057 },
                        -- The = is too big if in ss03. We scale it by 795/867 (not working like this)
                     -- ["0x003D.ss03"]     = { scale = 0.916955, width = 0.916955, height = 0.916955 },
                        -- these are done later using the AccentBase* parameters
                     -- [0x23DC]            = { height = .2, yoffset = -0.8 },
                     -- [0x23DD]            = { depth  = .6, yoffset =  0.4 },

                     -- ["0x7C.variants.1"] = { squeeze = 0.75, height = 0.75, depth = 0.75 },
                     -- ["0x7C.variants.2"] = { squeeze = 0.75, height = 0.75, depth = 0.75 },
                     -- ["0x7C.variants.3"] = { squeeze = 0.75, height = 0.75, depth = 0.75 },
                     -- ["0x7C.variants.4"] = { squeeze = 0.75, height = 0.75, depth = 0.75 },
                        -- going zero makes them be ignored
                        ["0x7C.variants.3"]={ squeeze = 0.90, height = 0.90, depth = 0.90 },
                        ["0x7C.variants.4"]={ squeeze = 0.80, height = 0.80, depth = 0.80 },
                    },
                },
                {
                    tweak = "kerns",
                    list  = {
                        [0x2F] = {
                            topleft     = -0.2,
                         -- bottomleft  =  0,
                         -- topright    =  0,
                            bottomright =  -0.2,
                       },

                        ["0x7D.parts.top"] = {
                            topright    = -0.15,
                        }, -- right brace top
                        ["0x7D.parts.bottom"] = {
                            bottomright = -0.15,
                        }, -- right brace bottom
                        ["0x7D.variants.*"] = {
                            topright = -0.15,
                            bottomright = -0.15,
                        }, -- right brace variants
                        ["0x29.parts.top"] = {
                            topright    = -0.25,
                        }, -- right parenthesis top
                        ["0x29.parts.bottom"] = {
                            bottomright = -0.25,
                        }, -- right parenthesis bottom
                        ["0x29.variants.*"] = {
                            topright = -0.2,
                            bottomright = -0.2,
                        }, -- right parenthesis variants
                        ["0x221A.parts.top"] = {
                            topright = 0.2,
                        }, -- right radical top
                        ["0x221A.parts.bottom"] = {
                            bottomright = 0.2,
                        }, -- right radical bottom
                        ["0x221A.variants.*"] = {
                            topright = 0.2,
                            bottomright = 0.2,
                        }, -- right radical variants

                        -- angle
                        [0x27E9]              = { topright = -0.2, bottomright = -0.2 },
                        ["0x27E9.variants.*"] = { topright = -0.3, bottomright = -0.3 },
                        [0x27EB]              = { topright = -0.2, bottomright = -0.2 },
                        ["0x27EB.variants.*"] = { topright = -0.3, bottomright = -0.3 },

                        ["0x222B.variants.*"] = integral_variants, ["0x222B.parts.top"] = integral_top, ["0x222B.parts.bottom"] = integral_bottom,
                        ["0x222C.variants.*"] = integral_variants, ["0x222C.parts.top"] = integral_top, ["0x222C.parts.bottom"] = integral_bottom,
                        ["0x222D.variants.*"] = integral_variants, ["0x222D.parts.top"] = integral_top, ["0x222D.parts.bottom"] = integral_bottom,
                        ["0x222E.variants.*"] = integral_variants, ["0x222E.parts.top"] = integral_top, ["0x222E.parts.bottom"] = integral_bottom,
                        ["0x222F.variants.*"] = integral_variants, ["0x222F.parts.top"] = integral_top, ["0x222F.parts.bottom"] = integral_bottom,
                        ["0x2230.variants.*"] = integral_variants, ["0x2230.parts.top"] = integral_top, ["0x2230.parts.bottom"] = integral_bottom,
                        ["0x2231.variants.*"] = integral_variants, ["0x2231.parts.top"] = integral_top, ["0x2231.parts.bottom"] = integral_bottom,
                        ["0x2232.variants.*"] = integral_variants, ["0x2232.parts.top"] = integral_top, ["0x2232.parts.bottom"] = integral_bottom,
                        ["0x2233.variants.*"] = integral_variants, ["0x2233.parts.top"] = integral_top, ["0x2233.parts.bottom"] = integral_bottom,

                    },
                },
                {
                  tweak   = "fixprimes",
                  factor  = 0.8,  -- accent base height
               -- smaller = true, -- replace multiples
                  scale   = 1.1,  -- glyph scale
               -- fake    = 0.65, -- replace multiples with this width proportion
               -- keep    = true, -- keep the text size prime (aka minute)
                },
                {
                    tweak = "checkspacing",
                },
                {
                    tweak = "addscripts",
                },
                {
                    tweak = "accentdimensions",
                },
                {
                    tweak = "addrules",
                },
            },
        },
        alternates = {
            textitalic   = { feature = 'ss01', value = 1, comment = "Mathematical Alternative Lowercase Italic" },
            arrow        = { feature = 'ss02', value = 1, comment = "Mathematical Alternative Smaller Arrows" },
            operator     = { feature = 'ss03', value = 1, comment = "Mathematical Alternative Smaller Operators" },
            calligraphic = { feature = 'ss04', value = 1, comment = "Mathematical Alternative Calligraphic Characters" },
            zero         = { feature = 'ss05', value = 1, comment = "Mathematical Alternative Zero" },
        },
        bigslots = {
            1, 2, 3, 4
        },
        --
        -- experimental fixes for mkiv:
        --
        dimensions = dimensions,
        kerns = kerns,
    },
}