-- mod-version:3
local syntax = require "core.syntax"


local typst_math = {

    patterns = {

        { pattern = { "/%*", "%*/" },              type = "comment" },
        { pattern = "//.*",                        type = "comment" },

        { pattern = { '"', '"', '\\' },            type = "string"  },

        { pattern = "[%a_][%w_%-]*%f[(]",          type = "function" },
        { pattern = "%a%a+",                       type = "function"},


        { pattern = "0x[%dabcdef]+",               type = "number" },
        { pattern = "0b[01]+",                     type = "number" },
        { pattern = "0o[01234567]+",               type = "number" },
        { pattern = "%d+[.e]%d+",                  type = "number" },
        { pattern = "%d",                          type = "number" },

        {pattern = "&",                            type = "literal"},
        { pattern = "[%+%-=/%*%^%%<>~|#_^\\]",     type = "operator" },

    },

    symbols = {
        ["alpha"]    = "keyword2",
        ["beta"]     = "keyword2",
        ["gamma"]    = "keyword2",
        ["delta"]    = "keyword2",
        ["epsilon"]  = "keyword2",
        ["zeta"]     = "keyword2",
        ["eta"]      = "keyword2",
        ["theta"]    = "keyword2",
        ["iota"]     = "keyword2",
        ["kappa"]    = "keyword2",
        ["lambda"]   = "keyword2",
        ["mu"]       = "keyword2",
        ["nu"]       = "keyword2",
        ["xi"]       = "keyword2",
        ["omicron"]  = "keyword2",
        ["pi"]       = "keyword2",
        ["rho"]      = "keyword2",
        ["sigma"]    = "keyword2",
        ["tau"]      = "keyword2",
        ["upsilon"]  = "keyword2",
        ["phi"]      = "keyword2",
        ["chi"]      = "keyword2",
        ["psi"]      = "keyword2",
        ["omega"]    = "keyword2",

        ["Alpha"]    = "keyword2",
        ["Beta"]     = "keyword2",
        ["Gamma"]    = "keyword2",
        ["Delta"]    = "keyword2",
        ["Epsilon"]  = "keyword2",
        ["Zeta"]     = "keyword2",
        ["Eta"]      = "keyword2",
        ["Theta"]    = "keyword2",
        ["Iota"]     = "keyword2",
        ["Kappa"]    = "keyword2",
        ["Lambda"]   = "keyword2",
        ["Mu"]       = "keyword2",
        ["Nu"]       = "keyword2",
        ["Xi"]       = "keyword2",
        ["Omicron"]  = "keyword2",
        ["Pi"]       = "keyword2",
        ["Rho"]      = "keyword2",
        ["Sigma"]    = "keyword2",
        ["Tau"]      = "keyword2",
        ["Upsilon"]  = "keyword2",
        ["Phi"]      = "keyword2",
        ["Chi"]      = "keyword2",
        ["Psi"]      = "keyword2",
        ["Omega"]    = "keyword2",
    }
}


local typst_script = {

    patterns = {

        { pattern = { "/%*", "%*/" },              type = "comment" },
        { pattern = "//.*",                        type = "comment" },

        { pattern = { '"', '"', '\\' },            type = "string"  },
        { pattern = {"%[", "%]"},                  type = "normal", syntax = ".typ" },

        { pattern = "[%a_][%w_%-]*%f[(]",          type = "function" },

        { pattern = "0x[%dabcdef]+",               type = "number" },
        { pattern = "0b[01]+",                     type = "number" },
        { pattern = "0o[01234567]+",               type = "number" },
        { pattern = "%d+[.e]%d+()[%a%%]+",         type = {"number", "keyword2"}},
        { pattern = "%d+[.e]%d+",                  type = "number" },
        { pattern = "%d+()[%a%%]+",                type = {"number", "keyword2"}},
        { pattern = "%d",                          type = "number" },


        { pattern = "[%+%-=/%*%^%%<>~|&#_^\\]",    type = "operator" },

    },


    symbols = {
        ["set"] = "keyword",
        ["let"] = "keyword",
        ["include"] = "keyword",
    }
}


syntax.add {
    name = "Typst",
    files = { "%.typ$" },
    comment = "//",
    block_comment = { "/*", "*/" },

    patterns = {


        { pattern = {"%$", "%$", "\\"},            type = "literal", syntax = typst_math },
        { pattern = {"```js", "```", "\\"},        type = "literal", syntax = ".js" },
        { pattern = {"#", "[^,%(%[{]\n"},          type = "literal", syntax = typst_script },
        { pattern = {"`", "`", "\\"},              type = "normal"},

        { pattern = { '"', '"', '\\' },            type = "string"  },


        { pattern = "//.*",                        type = "comment" },
        { pattern = { "/%*", "%*/" },              type = "comment" },

   --     { pattern = {"link"},                    type = "typst_underline"}, -- add underline text later

        { pattern = "^%s*=+ ().+%f[\n]",             type ={"operator", "literal"}}, -- Supposed to be bold

    -- Finish later
        { pattern = {"%*_", "_%*[%s,%.]"},         type = "keyword2"}, -- Bold Italic
        { pattern = {"_%*", "%*_[%s,%.]"},         type = "keyword2"}, -- Bold Italic
        { pattern = {"_", "_[%s,%.]"},             type = "keyword"}, -- Italic
        { pattern = {"%*[^%/]", "%*[%s,%.]"},      type = "literal"}, -- Bold

        { pattern = "[%+%-\\]",    type = "operator" },

    },



    symbols = {

    }
}