Aegisub/automation/factorybrew/multi-template.lua
Niels Martin Hansen d6a641b5c2 No longer process syllable zero in factorybrews.
Originally committed to SVN as r506.
2006-07-19 20:43:19 +00:00

171 lines
5.4 KiB
Lua

--[[
Copyright (c) 2005, Niels Martin Hansen
All rights reserved.
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-- Aegisub Automation factory-brewed script
-- "Template-based multiple-lines-per-syllable karaoke effects"
-- Use karaskel.lua for skeleton code
include("karaskel-adv.lua")
-- Define the name of the script
name = "Template-based effects"
-- Define a description of the script
description = "Makes advanced effects using templates embedded into the subtitle script. Please see the help for information on how to use this script."
-- Only one config option here.
-- Everything else is defined in the subtitle script
configuration = {
-- Allow the user to specify whether to strip tags or not
[1] = {
name = "striptags";
kind = "bool";
label = "Strip all tags";
hint = "Strip all formatting tags apart from the processed karaoke tags?";
default = false
},
[2] = {
name = "skipunknown";
kind = "bool";
label = "Remove unknown lines";
hint = "Removes all lines without a defined template";
default = false
}
}
-- Mandatory values
version, kind= 3, 'basic_ass'
function do_syllable(meta, styles, config, line, syl)
-- text is the replacement text for the syllable
-- ktext is the karaoke effect string
local text, ktext
-- Prepare the stripped or unstripped main text
if config.striptags then
text = syl.text_stripped
else
text = syl.text
end
local result = { n=0 }
-- Don't bother with empty syllables
if syl.text == "" or syl.n == 0 then
return result
end
-- Add the variable names to the syllable data
syl["dur"] = syl.duration
syl["start"] = syl.start_time
syl["end"] = syl.end_time
syl["mid"] = syl.start_time + syl.duration*5
syl["x"] = syl.center + line.centerleft
-- Prepare the karaoke effect string
for templateid, template in template_data[line.style] do
local ktext = template.text
-- do_repeat is global on purpose
_G.do_repeat = false
repeat
-- Function for replacing the variables
local function var_replacer(varname)
varname = string.lower(varname)
if syl[varname] ~= nil then
return syl[varname]
else
aegisub.output_debug(string.format("Unknown variable name: %s", varname))
return "$" .. varname
end
end
-- Replace the variables in the ktext
ktext = string.gsub(ktext, "$(%a+)", var_replacer)
local skipline = false
local newline = copy_line(line)
newline.layer = template.layer
A = { meta = meta, styles = styles, line = line, syl = syl, newline = newline }
-- Function for evaluating expressions
local function expression_evaluator(expression)
if string.find(expression, "return") then
chunk, err = loadstring(expression)
else
chunk, err = loadstring(string.format("return (%s)", expression))
end
if (err) ~= nil then
aegisub.output_debug(string.format("Error parsing expression:\n%s", expression, err))
return "%" .. expression .. "%"
else
local result = chunk(meta, styles, line, syl, newline)
if result then
return result
else
skipline = true
return ""
end
end
end
-- Find and evaluate expressions
ktext = string.gsub(ktext, "%%([^%%]*)%%", expression_evaluator)
newline.text = ktext .. text
if not (kline == "" or skipline) then
table.insert(result, newline)
end
until not do_repeat
end
return result
end
function do_line(meta, styles, config, line)
if line.kind == "comment" and line.name == "template" then
if not template_data[line.style] then
template_data[line.style] = {}
end
table.insert(template_data[line.style], line)
return { n=0 }
elseif line.kind == "dialogue" and template_data[line.style] then
return karaskel.do_line(meta, styles, config, line)
elseif not config.skipunknown then
return { n=1, [1]=line }
else
return { n=0 }
end
if config.workstyle == "" or config.workstyle == line.style then
return adv_do_line(meta, styles, config, line)
else
return { n=1, [1]=line }
end
end
function process_lines(meta, styles, lines, config)
template_data = {}
return karaskel.process_lines(meta, styles, lines, config)
end