Scite 着色演示

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请注意，此方法不能替代适当的词法分析器接口，因此不应用于实现基于 Lua 扩展的语法高亮显示。这是因为任何强制对缓冲区的一部分进行重新样式化的操作都会导致中断。但是，这种着色方法可能对不涉及“正常”编辑操作的任何内容都有用。

-----------------------------------------------------------------------
-- demo to provide custom colours and styles to a specific buffer
-- <[email protected]> public domain 20060906
-----------------------------------------------------------------------
-- [[
local function SetColours(lexer, scheme)
  local function dec(s) return tonumber(s, 16) end
  if lexer then editor.Lexer = lexer end
  for i, style in pairs(scheme) do
    for prop, value  in pairs(style) do
      if (prop == "StyleFore" or prop == "StyleBack")
         and type(value) == "string" then -- convert from string
        local hex, hex, r, g, b =
          string.find(value, "^(%x%x)(%x%x)(%x%x)$")
        value = hex and (dec(r) + dec(g)*256 + dec(b)*65536) or 0
      end
      editor[prop][i] = value
    end--each property
  end--each style
end

scite_Command('ColourTest|ColourTest|Ctrl+8')

local ColourScheme = { -- a sample colour scheme
  [1] = {StyleFore = "800000", StyleBold = true,},
  [2] = {StyleFore = "008000", StyleBack = "E0E0E0", StyleItalic = true,},
}

function ColourTest()
  local SIG = "ColourTest"
  -- colouriser function, used when buffer created or switched
  local function Colourise(n)
    local segment = n * 2
    editor:StartStyling(0, 31)
    for i = 1, 10 do
      editor:SetStyling(segment, 1)
      editor:SetStyling(segment, 2)
    end
  end
  -- recolour text again upon switching buffers
  scite_OnSwitchFile(function()
    if not buffer[SIG] then return end
    SetColours(SCLEX_CONTAINER, ColourScheme)
    Colourise(editor.Length / 100)
    return true
  end)
  -- create buffer, identify it, add some text, colourise
  scite.Open("")
  buffer[SIG] = true;
  SetColours(SCLEX_CONTAINER, ColourScheme)
  for i = 1, 100 do
    editor:AddText("The quick brown fox jumped over the lazy dog.\n")
  end
  Colourise(editor.Length / 100)
  -- since this colouring method breaks upon many operations, it
  -- cannot be used as a language syntax highlighter
  editor.ReadOnly = true
end
--]]