-- This font is under active development so we don't want to tweek it too much
-- before all issues are sorted out.

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

return {
    name = "kpfonts-math",
    version = "1.00",
    comment = "KP Fonts.",
    author = "Hans Hagen & Mikael Sundqvist",
    copyright = "ConTeXt development team",
    mathematics = {
        parameters = {
            DelimiterPercent                  =   85,
            DelimiterShortfall                =  400,
            DelimiterDisplayPercent           =   90,
            DelimiterDisplayShortfall         =  400,
            AccentBaseDepth                   =   30,
            DelimiterPercent                  =   90,
            DelimiterShortfall                =  400,
            PrimeShiftUp                      = "1.15*SuperscriptShiftUp",
            PrimeShiftUpCramped               = "1.15*SuperscriptShiftUp",
            SubscriptShiftDownWithSuperscript = "1.2*SubscriptShiftDown", -- unclear original value, trial and error
            RadicalDisplayStyleVerticalGap    = "RadicalVerticalGap", --170, 62
        },
        tweaks = {
            aftercopying = {
                {
                    tweak    = "version",
                    expected = "Version 0.40",
                },
                {
                    tweak = "checkaccents",
                },
                {
                    tweak = "dimensions",
                    list  = {
                        [0x2A3F] = { factor = 0.84625 }
                    },
                },
                {
                    tweak = "kerns",
                    list  = {
                        [0x002F]                = { topleft  = -0.2,  bottomright = -0.2  },
                        ["0x7D.parts.top"]      = { topright = -0.25                      }, -- right brace top
                        ["0x7D.parts.bottom"]   = {                   bottomright = -0.25 }, -- right brace bottom
                        ["0x7D.variants.*"]     = { topright = -0.1,  bottomright = -0.1  }, -- right brace variants
                        ["0x29.parts.top"]      = { topright = -0.05                      }, -- right parenthesis top
                        ["0x29.parts.bottom"]   = {                   bottomright = -0.05 }, -- right parenthesis bottom
                        ["0x29.variants.*"]     = { topright = -0.05, bottomright = -0.05 }, -- 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

                    },
                },
                {
                    tweak   = "fixprimes",
                    factor  = 0.86, -- accent base height
                    smaller = true, -- replace multiples
                    scale   = 1, -- glyph scale
                    fake    = 0.8, -- replace multiples with this width proportion
                },
                {
                    tweak = "addmirrors",
                },
                {
                    -- kpfonts have calligraphic at private slots
                    tweak   = "replacealphabets",
                    list    = {
                        {
                            source   = "uppercasescript",
                            target   = "uppercasecalligraphic",
                        },
                        {
                            source   = { first = 0x0E7E1, last = 0x0E7FA },
                            target   = "uppercasecalligraphic",
                        },
                        {
                            source   = "uppercaseboldscript",
                            target   = "uppercaseboldcalligraphic",
                        },
                        {
                            source   = { first = 0x0E701, last = 0x0E71A },
                            target   = "uppercaseboldcalligraphic",
                        },
                    },
                },
                presets.scripttocalligraphic { },
                presets.rsfstoscript         { rscale  = 0.95 },
                presets.rsfsuprighttoscript  { rscale  = 0.95 },
                presets.moderntocalligraphic { rscale  = 0.95 },
                presets.eulertocalligraphic  { rscale  = 0.95 },
                presets.xitsarabic           { rscale  = 0.92 },
                presets.fallbacks            { },
                presets.moveitalics          { correct = true },
                presets.moveitalics          { correct = true, letters = true },
                presets.moveintegrals        { factor  = 1.4 },
                presets.wipeitalics          { },
                {
                    tweak = "checkspacing",
                },
                {
                    tweak   = "radicaldegreeanchors",
                    list = {
                        [0x221A]                = { location = "left", hfactor  = .0, vfactor  = .75 },
                        ["0x221A.variants.*"]   = { location = "left", hfactor  = .0, vfactor  = .55 },
                        ["0x221A.variants.1"]   = { location = "left", hfactor  = .0, vfactor  = .6 },
                        ["0x221A.parts.bottom"] = { location = "left", hfactor  = .0, vfactor  = 0.65 },
                    }
                },
                {
                    tweak = "flattenaccents",
                },
                {
                    tweak = "addscripts",
                },
                {
                    tweak = "accentdimensions",
                },
                {
                    tweak = "addrules",
                },
{
    tweak    = "replacerules",
    -- minus = {
    --     height      = 0.1818,
    --     yoffset     = 0.818,
    --     leftoffset  = 0.2,
    --     rightoffset = 0.2,
    -- },
    fraction = {
        height  = .1818,
        yoffset = .818,
    },
    radical = {
        height      = .1818,
        yoffset     = .818,
        leftoffset  = 0.08,
        rightoffset = 0.08,
    },
    stacker = {
        height  = .1818,
        yoffset = .818,
    },
},
                {
                    -- This will be fixed. Check if new version comes out!
                    tweak   = "addbars",
                    advance = 0.5,
                },
                {
                    tweak = "addactuarian",
                },
                {
                    tweak = "addequals",
                },
                {
                    tweak = "addfourier",
                    variant = 2,
                },
                {
                    tweak = "addprimed",
                },
                {
                    tweak = "setoptions",
                    set   = { "ignorekerndimensions" }
                },
-- {
--     tweak = "inspect",
--     unicode = 0x2192
-- },
-- {
--     tweak = "inspect",
--     unicode = 0x20EF
-- },
-- {
            }

        },
        alternates = {
         -- italic = { feature = 'ss01', value = 1, comment = "Mathematical Alternative Lowercase Italic" },
        },
        bigslots = {
            1, 2, 3, 4
        },
    },
}