add k->a

README.md

@@ -60,6 +60,12 @@ Replaces `--` with `—`.
 
 I do not have an em-dash key on my keyboard.
 
+### K-Timing -> Alpha Timing
+
+does what it says on the tin.
+
+originally created to convert stuff that should've been alpha-timed in the first place, but also makes new alpha-timing easier
+
 ### Scenebleed Detector
 
 Finds scenebleeds in the selected lines, and marks them with an effect (`bleed`).

karaoke2alpha.lua

@@ -0,0 +1,65 @@
+script_name="K-Timing -> Alpha Timing"
+script_description="does what it says on the tin.\noriginally to convert stuff that should've been alpha-timed in the first place, but could also make new alpha-timing easier"
+script_author = "garret"
+script_version = "2021-07-10"
+include("utils.lua")
+
+-- logging stuff, for testing
+--[[inspect = require 'inspect'
+function log(level, msg)
+    if type(level) ~= "number" then
+        level = msg
+        level = 4
+    end
+    if type(msg) == "table" then
+        msg = inspect(msg)
+    end
+    aegisub.log(level, tostring(msg) .. "\n")
+end]]
+
+function get_visible(parsed_line, index)
+    local res = ""
+    for i=1,index do -- for every syl up to the current one
+        res = res..parsed_line[i].text -- add to the result
+    end
+    return res
+end
+
+function get_invisible(parsed_line, index)
+    local res = ""
+    for i=index+1,#parsed_line do -- for every syl from the next one to the end
+        res = res..parsed_line[i].text -- add to result
+    end
+    return res
+end
+
+function main(sub, sel)
+    for i=#sel,1,-1 do
+        local line=sub[sel[i]]
+        local parsed = aegisub.parse_karaoke_data(line)
+        for j=1,#parsed do
+            visible = get_visible(parsed, j)
+            invisible = get_invisible(parsed, j)
+            if invisible ~= nil then
+                text = visible.."{\\alpha&HFF&}"..invisible
+            else
+                text = visible
+            end
+            local syl = parsed[j]
+            local new = util.copy(line)
+            new.text = text
+            new.start_time = syl.start_time + line.start_time -- just the syl on its own returns the offset from the line
+            if j ~= #parsed then
+                new.end_time = syl.end_time + line.start_time
+            else
+                new.end_time = line.end_time
+            end
+            sub.insert(sel[i]+j,new) -- 1 line after for first syl, 2 for 2nd syl, etc
+        end
+        line.comment = true
+        sub[sel[i]]=line
+    end
+    aegisub.set_undo_point(script_name)
+end
+
+aegisub.register_macro(script_name, script_description, main)