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Modification of edit.lua to use blit in writeHighlighted

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Reduces amount of string operations and write calls inside writeHighlighted function by switching it to blit and using the 3rd argument in string.match.
This commit is contained in:
Wojbie 2017-06-16 23:13:53 +02:00
parent c611b20db8
commit efb351e1b0
1 changed files with 56 additions and 30 deletions
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86
src/main/resources/assets/computercraft/lua/rom/programs/edit.lua
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@ -135,39 +135,65 @@ local tKeywords = {
["while"] = true, ["while"] = true,
} }
local function tryWrite( sLine, regex, colour ) local tHex = {
local match = string.match( sLine, regex ) [ colors.white ] = "0",
if match then [ colors.orange ] = "1",
if type(colour) == "number" then [ colors.magenta ] = "2",
term.setTextColour( colour ) [ colors.lightBlue ] = "3",
else [ colors.yellow ] = "4",
term.setTextColour( colour(match) ) [ colors.lime ] = "5",
end [ colors.pink ] = "6",
term.write( match ) [ colors.gray ] = "7",
term.setTextColour( textColour ) [ colors.lightGray ] = "8",
return string.sub( sLine, string.len(match) + 1 ) [ colors.cyan ] = "9",
end [ colors.purple ] = "a",
return nil [ colors.blue ] = "b",
end [ colors.brown ] = "c",
[ colors.green ] = "d",
[ colors.red ] = "e",
[ colors.black ] = "f",
}
local tPattern = {
[ 1 ] = "^(%-%-%[%[.-%]%])()",
[ 2 ] = "^(%-%-.*)()",
[ 3 ] = "^(\"\")()",
[ 4 ] = "^(\".-[^\\]\")()",
[ 5 ] = "^(\'\')()",
[ 6 ] = "^(\'.-[^\\]\')()",
[ 7 ] = "^(%[%[.-%]%])()",
[ 8 ] = "^([%w_]+)()",
[ 9 ] = "^([^%w_])()",
}
local tPatternColors = {
[ 1 ] = commentColour,
[ 2 ] = commentColour,
[ 3 ] = stringColour,
[ 4 ] = stringColour,
[ 5 ] = stringColour,
[ 6 ] = stringColour,
[ 7 ] = stringColour,
[ 8 ] = function( sMatch ) return tKeywords[ sMatch ] and keywordColour or textColour end,
[ 9 ] = textColour,
}
local function writeHighlighted( sLine ) local function writeHighlighted( sLine )
while string.len(sLine) > 0 do local tColor = {}
sLine = local nPosition = 1
tryWrite( sLine, "^%-%-%[%[.-%]%]", commentColour ) or local sMatch,nNextPosition
tryWrite( sLine, "^%-%-.*", commentColour ) or local nColor
tryWrite( sLine, "^\"\"", stringColour ) or while nPosition <= #sLine do
tryWrite( sLine, "^\".-[^\\]\"", stringColour ) or local i = 0
tryWrite( sLine, "^\'\'", stringColour ) or repeat
tryWrite( sLine, "^\'.-[^\\]\'", stringColour ) or i=i+1
tryWrite( sLine, "^%[%[.-%]%]", stringColour ) or sMatch,nNextPosition = string.match( sLine, tPattern[i] , nPosition)
tryWrite( sLine, "^[%w_]+", function( match ) until sMatch
if tKeywords[ match ] then nColor = tPatternColors[i]
return keywordColour tColor[#tColor+1] = string.rep( tHex[ type(nColor) == "number" and nColor or nColor(sMatch) ] , nNextPosition - nPosition)
end nPosition = nNextPosition
return textColour
end ) or
tryWrite( sLine, "^[^%w_]", textColour )
end end
term.blit( sLine, table.concat( tColor ), string.rep( tHex[bgColour], #sLine ) )
end end
local tCompletions local tCompletions