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- 'use strict';
- import xml2js = require('xml2js');
- /**
- * Converts an input buffer to a SubStation Alpha subtitle.
- */
- export default function(input: string|Buffer, done: (err: Error, subtitle?: string) => void) {
- xml2js.parseString(input.toString(), {
- explicitArray: false,
- explicitRoot: false
- }, (err: Error, xml: ISubtitle) => {
- if (err) return done(err);
- try {
- done(null, script(xml) + '\n' +
- style(xml.styles) + '\n' +
- event(xml.events));
- } catch (err) {
- done(err);
- }
- });
- }
- /**
- * Converts the event block.
- */
- function event(block: ISubtitleEvent): string {
- var format = 'Layer,Start,End,Style,Name,MarginL,MarginR,MarginV,Effect,Text';
- return '[Events]\n' +
- 'Format: ' + format + '\n' +
- [].concat(block.event).map(style => ('Dialogue: 0,' +
- style.$.start + ',' +
- style.$.end + ',' +
- style.$.style + ',' +
- style.$.name + ',' +
- style.$.margin_l + ',' +
- style.$.margin_r + ',' +
- style.$.margin_v + ',' +
- style.$.effect + ',' +
- style.$.text)).join('\n') + '\n';
- }
- /**
- * Converts the script block.
- */
- function script(block: ISubtitle): string {
- return '[Script Info]\n' +
- 'Title: ' + block.$.title + '\n' +
- 'ScriptType: v4.00+\n' +
- 'WrapStyle: ' + block.$.wrap_style + '\n' +
- 'PlayResX: ' + block.$.play_res_x + '\n' +
- 'PlayResY: ' + block.$.play_res_y + '\n' +
- 'Subtitle ID: ' + block.$.id + '\n' +
- 'Language: ' + block.$.lang_string + '\n' +
- 'Created: ' + block.$.created + '\n';
- }
- /**
- * Converts the style block.
- */
- function style(block: ISubtitleStyle): string {
- var format = 'Name,Fontname,Fontsize,PrimaryColour,SecondaryColour,' +
- 'OutlineColour,BackColour,Bold,Italic,Underline,StrikeOut,ScaleX,' +
- 'ScaleY,Spacing,Angle,BorderStyle,Outline,Shadow,Alignment,' +
- 'MarginL,MarginR,MarginV,Encoding';
- return '[V4+ Styles]\n' +
- 'Format: ' + format + '\n' +
- [].concat(block.style).map(style => 'Style: ' +
- style.$.name + ',' +
- style.$.font_name + ',' +
- style.$.font_size + ',' +
- style.$.primary_colour + ',' +
- style.$.secondary_colour + ',' +
- style.$.outline_colour + ',' +
- style.$.back_colour + ',' +
- style.$.bold + ',' +
- style.$.italic + ',' +
- style.$.underline + ',' +
- style.$.strikeout + ',' +
- style.$.scale_x + ',' +
- style.$.scale_y + ',' +
- style.$.spacing + ',' +
- style.$.angle + ',' +
- style.$.border_style + ',' +
- style.$.outline + ',' +
- style.$.shadow + ',' +
- style.$.alignment + ',' +
- style.$.margin_l + ',' +
- style.$.margin_r + ',' +
- style.$.margin_v + ',' +
- style.$.encoding).join('\n') + '\n';
- }
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