mirror of
https://github.com/NuSkooler/enigma-bbs.git
synced 2025-06-06 12:47:13 +02:00
Display ANSI in file area desc view
This commit is contained in:
Bryan Ashby
parent
9cb31367fd
commit
0a079ee4d8
2 changed files with 81 additions and 115 deletions
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@ -21,7 +21,7 @@ exports.renderStringLength = renderStringLength;
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exports.formatByteSizeAbbr = formatByteSizeAbbr;
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exports.formatByteSize = formatByteSize;
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exports.cleanControlCodes = cleanControlCodes;
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exports.createCleanAnsi = createCleanAnsi;
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exports.prepAnsi = prepAnsi;
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// :TODO: create Unicode verison of this
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const VOWELS = [ 'a', 'e', 'i', 'o', 'u' ];
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@ -373,48 +373,35 @@ function cleanControlCodes(input, options) {
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return cleaned;
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}
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function createCleanAnsi(input, options, cb) {
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function prepAnsi(input, options, cb) {
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if(!input) {
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return cb('');
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return cb(null, '');
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}
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options.width = options.width || 80;
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options.height = options.height || 25;
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const canvas = new Array(options.height);
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for(let i = 0; i < options.height; ++i) {
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canvas[i] = new Array(options.width);
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for(let j = 0; j < options.width; ++j) {
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canvas[i][j] = {};
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}
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}
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options.termWidth = options.termWidth || 80;
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options.termHeight = options.termHeight || 25;
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const parserOpts = {
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termHeight : options.height,
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termWidth : options.width,
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options.cols = options.cols || options.termWidth || 80;
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options.rows = options.rows || options.termHeight || 25;
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options.startCol = options.startCol || 1;
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const canvas = Array.from( { length : options.rows }, () => Array.from( { length : options.cols}, () => new Object() ) );
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const parser = new ANSIEscapeParser( { termHeight : options.termHeight, termWidth : options.termWidth } );
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const state = {
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row : 0,
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col : 0,
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};
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const parser = new ANSIEscapeParser(parserOpts);
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let lastRow = 0;
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const canvasPos = {
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col : 0,
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row : 0,
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};
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parser.on('position update', (row, col) => {
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state.row = row - 1;
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state.col = col - 1;
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let sgr;
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function ensureCell() {
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// we've pre-allocated a matrix, but allow for > supplied dimens up front. They will be trimmed @ finalize
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if(!canvas[canvasPos.row]) {
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canvas[canvasPos.row] = new Array(options.width);
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for(let j = 0; j < options.width; ++j) {
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canvas[canvasPos.row][j] = {};
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}
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}
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canvas[canvasPos.row][canvasPos.col] = canvas[canvasPos.row][canvasPos.col] || {};
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//canvas[canvasPos.row][0].width = Math.max(canvas[canvasPos.row][0].width || 0, canvasPos.col);
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}
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lastRow = Math.max(state.row, lastRow);
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});
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parser.on('literal', literal => {
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//
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@ -422,99 +409,83 @@ function createCleanAnsi(input, options, cb) {
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//
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literal = literal.replace(/\r?\n|[\r\u2028\u2029]/g, '');
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for(let i = 0; i < literal.length; ++i) {
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const c = literal.charAt(i);
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for(let c of literal) {
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if(state.col < options.cols && state.row < options.rows) {
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canvas[state.row][state.col].char = c;
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ensureCell();
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canvas[canvasPos.row][canvasPos.col].char = c;
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if(sgr) {
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canvas[canvasPos.row][canvasPos.col].sgr = sgr;
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sgr = null;
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if(state.sgr) {
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canvas[state.row][state.col].sgr = state.sgr;
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state.sgr = null;
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}
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}
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canvasPos.col += 1;
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state.col += 1;
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}
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});
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parser.on('control', (match, opCode) => {
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if('m' !== opCode) {
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return; // don't care'
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//
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// Movement is handled via 'position update', so we really only care about
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// display opCodes
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//
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switch(opCode) {
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case 'm' :
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state.sgr = (state.sgr || '') + match;
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break;
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default :
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if(-1 === [ 'C' ].indexOf(opCode)) {
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console.log(`ignore opCode: ${opCode}`); // :TODO: REMOVE ME
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}
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}
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sgr = match;
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});
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parser.on('position update', (row, col) => {
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canvasPos.row = row - 1;
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canvasPos.col = Math.min(col - 1, options.width);
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});
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function getLastPopulatedColumn(row) {
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let col = row.length;
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while(--col > 0) {
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if(row[col].char || row[col].sgr) {
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break;
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}
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}
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return col;
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}
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parser.on('complete', () => {
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for(let row = 0; row < options.height; ++row) {
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let col = 0;
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let output = '';
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let lastSgr = '';
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canvas.slice(0, lastRow + 1).forEach(row => {
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const lastCol = getLastPopulatedColumn(row) + 1;
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//while(col <= canvas[row][0].width) {
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while(col < options.width) {
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if(!canvas[row][col].char) {
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canvas[row][col].char = ' ';
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if(!canvas[row][col].sgr) {
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// :TODO: fix duplicate SGR's in a row here - we just need one per sequence
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canvas[row][col].sgr = ANSI.reset();
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}
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let i;
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for(i = 0; i < lastCol; ++i) {
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const col = row[i];
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if(col.sgr) {
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lastSgr = col.sgr;
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}
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col += 1;
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output += `${col.sgr || ''}${col.char || ' '}`;
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}
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// :TODO: end *all* with CRLF - general usage will be width : 79 - prob update defaults
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if(col <= options.width) {
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canvas[row][col] = canvas[row][col] || {};
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canvas[row][col].char = '\r\n';
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canvas[row][col].sgr = ANSI.reset();
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// :TODO: don't splice, just reset + fill with ' ' till end
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for(let fillCol = col; fillCol <= options.width; ++fillCol) {
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canvas[row][fillCol].char = ' ';
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}
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//canvas[row] = canvas[row].splice(0, col + 1);
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//canvas[row][options.width - 1].char = '\r\n';
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} else {
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canvas[row] = canvas[row].splice(0, options.width + 1);
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if(i < row.length) {
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output += `${ANSI.blackBG()}${row.slice(i).map( () => ' ').join('')}${lastSgr}`;
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}
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}
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let out = '';
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for(let row = 0; row < options.height; ++row) {
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out += canvas[row].map( col => {
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let c = col.sgr || '';
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c += col.char;
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return c;
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}).join('');
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}
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if(options.startCol + options.cols < options.termWidth || options.forceLineTerm) {
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output += '\r\n';
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}
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});
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// :TODO: finalize: @ any non-char cell, reset sgr & set to ' '
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// :TODO: finalize: after sgr established, omit anything > supplied dimens
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return cb(out);
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return cb(null, output);
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});
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parser.parse(input);
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}
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// create2dArray = (rows, columns) => [...Array(rows).keys()].map(i => Array(columns).fill({}))
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/*
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const fs = require('graceful-fs');
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let data = fs.readFileSync('/home/nuskooler/Downloads/art3.ans');
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//let data = fs.readFileSync('/home/nuskooler/Downloads/art3.ans');
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//let data = fs.readFileSync('/home/nuskooler/dev/enigma-bbs/mods/themes/nu-xibalba/MATRIX1.ANS');
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let data = fs.readFileSync('/home/nuskooler/Downloads/ansi_diz_test/file_id.diz.2.ans');
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data = iconv.decode(data, 'cp437');
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createCleanAnsi(data, { width : 79, height : 25 }, (out) => {
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prepAnsi(data, { cols : 45, rows : 25 }, (err, out) => {
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out = iconv.encode(out, 'cp437');
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fs.writeFileSync('/home/nuskooler/Downloads/art4.ans', out);
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});
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