1 files changed, 69 insertions, 0 deletions
diff --git a/pos2an.lua b/pos2an.lua
new file mode 100644
index 0000000..7b67b00
--- /dev/null
+++ b/pos2an.lua
@@ -0,0 +1,69 @@
+script_name = "pos -> an"
+script_description = "double click the video then snap to an \\an"
+script_author = "garret"
+script_version = "1"
+
+
+local function escape_pattern(txt)
+	local magic_chars = "%^%$%(%)%%.%[%]%*%+%-%?"
+	return txt:gsub("(["..magic_chars.."])", "%%%1")
+end
+
+local function main(sub, sel)
+	local vidx, vidy = aegisub.video_size()
+	local left   = vidx * 0.25
+	local right  = vidx - (vidx * 0.25)
+	local top    = vidy * 0.32
+	local bottom = vidy - (vidx * 0.35)
+	-- todo: have these customisable in a gui in v2
+
+	if not vidx then
+		aegisub.log("open a video")
+		aegisub.cancel()
+		-- todo: might be nice to use script res for this
+		-- but realistically if youre using this, youve got a video open
+	end
+	for _, i in ipairs(sel) do
+		local line = sub[i]
+		local x
+		local y
+		local tag
+		local c = 0
+		line.text = string.gsub(line.text, "\\an%d", "")
+		line.text = string.gsub(line.text, "{}", "")
+		for postag, posx, posy in string.gmatch(line.text, "{[^}]*(\\pos%(([^,]+), *([^)]+)%))[^}]*}") do
+			if c == 0 then
+				x = tonumber(posx)
+				y = tonumber(posy)
+				tag = escape_pattern(postag)
+			end
+			c = c + 1
+		end
+		if c == 0 then goto continue end
+		-- aegi is luajit
+
+		local s
+
+		if y <= top then
+			s = "t" elseif
+			y >= bottom then s = "b"
+				else s = "c" end
+
+		if x <= left then
+			s = s.."l" elseif
+				x >= right then s = s.."r"
+					else s = s.."c" end
+
+		local AN_MAP = {
+			tl = 7, tc = 8, tr = 9,
+			cl = 4, cc = 5, cr = 6,
+			bl = 1, bc = 2, br = 3,
+		}
+
+		line.text = string.gsub(line.text, tag, "\\an"..AN_MAP[s])
+		sub[i] = line
+		::continue::
+	end
+end
+
+aegisub.register_macro(script_name, script_description, main)