438 lines
9.2 KiB
JavaScript
438 lines
9.2 KiB
JavaScript
/* jslint node: true */
|
|
'use strict';
|
|
|
|
//
|
|
// ANSI Terminal Support
|
|
//
|
|
// Resources:
|
|
// * http://ansi-bbs.org/
|
|
// * http://www.bbsdocumentary.com/library/PROGRAMS/GRAPHICS/ANSI/ansisys.txt
|
|
// * http://en.wikipedia.org/wiki/ANSI_escape_code
|
|
//
|
|
|
|
var assert = require('assert');
|
|
var binary = require('binary');
|
|
var miscUtil = require('./misc_util.js');
|
|
|
|
var _ = require('lodash');
|
|
|
|
exports.getFGColorValue = getFGColorValue;
|
|
exports.getBGColorValue = getBGColorValue;
|
|
exports.sgr = sgr;
|
|
exports.getSGRFromGraphicRendition = getSGRFromGraphicRendition;
|
|
exports.clearScreen = clearScreen;
|
|
exports.resetScreen = resetScreen;
|
|
exports.normal = normal;
|
|
exports.goHome = goHome;
|
|
exports.disableVT100LineWrapping = disableVT100LineWrapping;
|
|
exports.setSyncTERMFont = setSyncTERMFont;
|
|
exports.getSyncTERMFontFromAlias = getSyncTERMFontFromAlias;
|
|
exports.setCursorStyle = setCursorStyle;
|
|
exports.fromPipeCode = fromPipeCode;
|
|
|
|
|
|
//
|
|
// See also
|
|
// https://github.com/TooTallNate/ansi.js/blob/master/lib/ansi.js
|
|
|
|
var ESC_CSI = '\u001b[';
|
|
|
|
var CONTROL = {
|
|
up : 'A',
|
|
down : 'B',
|
|
forward : 'C',
|
|
back : 'D',
|
|
nextLine : 'E',
|
|
prevLine : 'F',
|
|
horizAbsolute : 'G',
|
|
eraseData : 'J',
|
|
eraseLine : 'K',
|
|
insertLine : 'L',
|
|
deleteLine : 'M',
|
|
scrollUp : 'S',
|
|
scrollDown : 'T',
|
|
setScrollRegion : 'r',
|
|
savePos : 's',
|
|
restorePos : 'u',
|
|
queryPos : '6n',
|
|
queryScreenSize : '255n', // See bansi.txt
|
|
goto : 'H', // row Pr, column Pc -- same as f
|
|
gotoAlt : 'f', // same as H
|
|
|
|
blinkToBrightIntensity : '?33h',
|
|
blinkNormal : '?33l',
|
|
|
|
emulationSpeed : '*r', // Set output emulation speed. See cterm.txt
|
|
|
|
hideCursor : '?25l', // Nonstandard - cterm.txt
|
|
showCursor : '?25h', // Nonstandard - cterm.txt
|
|
};
|
|
|
|
/*
|
|
DECTERM stuff. Probably never need
|
|
hide : '?25l',
|
|
show : '?25h',*/
|
|
|
|
//
|
|
// Select Graphics Rendition
|
|
// See http://cvs.synchro.net/cgi-bin/viewcvs.cgi/*checkout*/src/conio/cterm.txt
|
|
//
|
|
var SGRValues = {
|
|
reset : 0,
|
|
bold : 1,
|
|
dim : 2,
|
|
blink : 5,
|
|
fastBlink : 6,
|
|
negative : 7,
|
|
hidden : 8,
|
|
|
|
normal : 22, //
|
|
steady : 25,
|
|
positive : 27,
|
|
|
|
black : 30,
|
|
red : 31,
|
|
green : 32,
|
|
yellow : 33,
|
|
blue : 34,
|
|
magenta : 35,
|
|
cyan : 36,
|
|
white : 37,
|
|
|
|
blackBG : 40,
|
|
redBG : 41,
|
|
greenBG : 42,
|
|
yellowBG : 43,
|
|
blueBG : 44,
|
|
|
|
cyanBG : 46,
|
|
whiteBG : 47,
|
|
};
|
|
|
|
function getFGColorValue(name) {
|
|
return SGRValues[name];
|
|
}
|
|
|
|
function getBGColorValue(name) {
|
|
return SGRValues[name + 'BG'];
|
|
}
|
|
|
|
|
|
|
|
// See http://cvs.synchro.net/cgi-bin/viewcvs.cgi/*checkout*/src/conio/cterm.txt
|
|
// :TODO: document
|
|
// :TODO: Create mappings for aliases... maybe make this a map to values instead
|
|
// :TODO: Break this up in to two parts:
|
|
// 1) FONT_AND_CODE_PAGES (e.g. SyncTERM/cterm)
|
|
// 2) SAUCE_FONT_MAP: Sauce name(s) -> items in FONT_AND_CODE_PAGES.
|
|
// ...we can then have getFontFromSAUCEName(sauceFontName)
|
|
// Also, create a SAUCE_ENCODING_MAP: SAUCE font name -> encodings
|
|
|
|
//
|
|
// An array of CTerm/SyncTERM font/encoding values. Each entry's index
|
|
// corresponds to it's escape sequence value (e.g. cp437 = 0)
|
|
//
|
|
// See https://github.com/protomouse/synchronet/blob/master/src/conio/cterm.txt
|
|
//
|
|
var SYNCTERM_FONT_AND_ENCODING_TABLE = [
|
|
'cp437',
|
|
'cp1251',
|
|
'koi8_r',
|
|
'iso8859_2',
|
|
'iso8859_4',
|
|
'cp866',
|
|
'iso8859_9',
|
|
'haik8',
|
|
'iso8859_8',
|
|
'koi8_u',
|
|
'iso8859_15',
|
|
'iso8859_4',
|
|
'koi8_r_b',
|
|
'iso8859_4',
|
|
'iso8859_5',
|
|
'ARMSCII_8',
|
|
'iso8859_15',
|
|
'cp850',
|
|
'cp850',
|
|
'cp885',
|
|
'cp1251',
|
|
'iso8859_7',
|
|
'koi8-r_c',
|
|
'iso8859_4',
|
|
'iso8859_1',
|
|
'cp866',
|
|
'cp437',
|
|
'cp866',
|
|
'cp885',
|
|
'cp866_u',
|
|
'iso8859_1',
|
|
'cp1131',
|
|
'c64_upper',
|
|
'c64_lower',
|
|
'c128_upper',
|
|
'c128_lower',
|
|
'atari',
|
|
'pot_noodle',
|
|
'mo_soul',
|
|
'microknight_plus',
|
|
'topaz_plus',
|
|
'microknight',
|
|
'topaz',
|
|
];
|
|
|
|
//
|
|
// A map of various font name/aliases such as those used
|
|
// in SAUCE records to SyncTERM/CTerm names
|
|
//
|
|
// This table contains lowercased entries with any spaces
|
|
// replaced with '_' for lookup purposes.
|
|
//
|
|
var FONT_ALIAS_TO_SYNCTERM_MAP = {
|
|
'cp437' : 'cp437',
|
|
'ibm_vga' : 'cp437',
|
|
'ibmpc' : 'cp437',
|
|
'ibm_pc' : 'cp437',
|
|
'pc' : 'cp437',
|
|
'cp437_art' : 'cp437',
|
|
'ibmpcart' : 'cp437',
|
|
'ibmpc_art' : 'cp437',
|
|
'ibm_pc_art' : 'cp437',
|
|
'msdos_art' : 'cp437',
|
|
'msdosart' : 'cp437',
|
|
'pc_art' : 'cp437',
|
|
'pcart' : 'cp437',
|
|
|
|
'ibm_vga50' : 'cp437',
|
|
'ibm_vga25g' : 'cp437',
|
|
'ibm_ega' : 'cp437',
|
|
'ibm_ega43' : 'cp437',
|
|
|
|
'topaz' : 'topaz',
|
|
'amiga_topaz_1' : 'topaz',
|
|
'amiga_topaz_1+' : 'topaz_plus',
|
|
'topazplus' : 'topaz_plus',
|
|
'topaz_plus' : 'topaz_plus',
|
|
'amiga_topaz_2' : 'topaz',
|
|
'amiga_topaz_2+' : 'topaz_plus',
|
|
'topaz2plus' : 'topaz_plus',
|
|
|
|
'pot_noodle' : 'pot_noodle',
|
|
'p0tnoodle' : 'pot_noodle',
|
|
'amiga_p0t-noodle' : 'pot_noodle',
|
|
|
|
'mo_soul' : 'mo_soul',
|
|
'mosoul' : 'mo_soul',
|
|
'mO\'sOul' : 'mo_soul',
|
|
|
|
'amiga_microknight' : 'microknight',
|
|
'amiga_microknight+' : 'microknight_plus',
|
|
|
|
|
|
'atari' : 'atari',
|
|
'atarist' : 'atari',
|
|
|
|
};
|
|
|
|
function setSyncTERMFont(name, fontPage) {
|
|
var p1 = miscUtil.valueWithDefault(fontPage, 0);
|
|
|
|
assert(p1 >= 0 && p1 <= 3);
|
|
|
|
var p2 = SYNCTERM_FONT_AND_ENCODING_TABLE[name];
|
|
if(_.isNumber(p2)) {
|
|
return ESC_CSI + p1 + ';' + p2 + ' D';
|
|
}
|
|
|
|
return '';
|
|
}
|
|
|
|
function getSyncTERMFontFromAlias(alias) {
|
|
return FONT_ALIAS_TO_SYNCTERM_MAP[alias.toLowerCase().replace(/ /g, '_')];
|
|
}
|
|
|
|
var DEC_CURSOR_STYLE = {
|
|
'blinking block' : 0,
|
|
'default' : 1,
|
|
'steady block' : 2,
|
|
'blinking underline' : 3,
|
|
'steady underline' : 4,
|
|
'blinking bar' : 5,
|
|
'steady bar' : 6,
|
|
};
|
|
|
|
function setCursorStyle(cursorStyle) {
|
|
var ps = DEC_CURSOR_STYLE[cursorStyle];
|
|
if(ps) {
|
|
return ESC_CSI + ps + ' q';
|
|
}
|
|
return '';
|
|
|
|
}
|
|
|
|
// Create methods such as up(), nextLine(),...
|
|
Object.keys(CONTROL).forEach(function onControlName(name) {
|
|
var code = CONTROL[name];
|
|
|
|
exports[name] = function() {
|
|
var c = code;
|
|
if(arguments.length > 0) {
|
|
// arguments are array like -- we want an array
|
|
c = Array.prototype.slice.call(arguments).map(Math.round).join(';') + code;
|
|
}
|
|
return ESC_CSI + c;
|
|
};
|
|
});
|
|
|
|
// Create various color methods such as white(), yellowBG(), reset(), ...
|
|
Object.keys(SGRValues).forEach(function onSgrName(name) {
|
|
var code = SGRValues[name];
|
|
|
|
exports[name] = function() {
|
|
return ESC_CSI + code + 'm';
|
|
};
|
|
});
|
|
|
|
function sgr() {
|
|
//
|
|
// - Allow an single array or variable number of arguments
|
|
// - Each element can be either a integer or string found in SGRValues
|
|
// which in turn maps to a integer
|
|
//
|
|
if(arguments.length <= 0) {
|
|
return '';
|
|
}
|
|
|
|
var result = '';
|
|
|
|
// :TODO: this method needs a lot of cleanup!
|
|
|
|
var args = Array.isArray(arguments[0]) ? arguments[0] : arguments;
|
|
for(var i = 0; i < args.length; i++) {
|
|
if(typeof args[i] === 'string') {
|
|
if(args[i] in SGRValues) {
|
|
if(result.length > 0) {
|
|
result += ';';
|
|
}
|
|
result += SGRValues[args[i]];
|
|
}
|
|
} else if(typeof args[i] === 'number') {
|
|
if(result.length > 0) {
|
|
result += ';';
|
|
}
|
|
result += args[i];
|
|
}
|
|
}
|
|
return ESC_CSI + result + 'm';
|
|
}
|
|
|
|
//
|
|
// Converts a Graphic Rendition object used elsewhere
|
|
// to a ANSI SGR sequence.
|
|
//
|
|
function getSGRFromGraphicRendition(graphicRendition, initialReset) {
|
|
var sgrSeq = [];
|
|
|
|
var styleCount = 0;
|
|
[ 'intensity', 'underline', 'blink', 'negative', 'invisible' ].forEach(function style(s) {
|
|
if(graphicRendition[s]) {
|
|
sgrSeq.push(graphicRendition[s]);
|
|
++styleCount;
|
|
}
|
|
});
|
|
|
|
if(!styleCount) {
|
|
sgrSeq.push(0);
|
|
}
|
|
|
|
if(graphicRendition.fg) {
|
|
sgrSeq.push(graphicRendition.fg);
|
|
}
|
|
|
|
if(graphicRendition.bg) {
|
|
sgrSeq.push(graphicRendition.bg);
|
|
}
|
|
|
|
if(initialReset) {
|
|
sgrSeq.unshift(0);
|
|
}
|
|
|
|
return sgr(sgrSeq);
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// Shortcuts for common functions
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
function clearScreen() {
|
|
return exports.eraseData(2);
|
|
}
|
|
|
|
function resetScreen() {
|
|
return exports.reset() + exports.eraseData(2) + exports.goHome();
|
|
}
|
|
|
|
function normal() {
|
|
return sgr(['normal', 'reset']);
|
|
}
|
|
|
|
function goHome() {
|
|
return exports.goto(); // no params = home = 1,1
|
|
}
|
|
|
|
//
|
|
// See http://www.termsys.demon.co.uk/vtANSI_BBS.htm
|
|
//
|
|
function disableVT100LineWrapping() {
|
|
return ESC_CSI + '7l';
|
|
}
|
|
|
|
// Also add:
|
|
// * fromRenegade(): |<0-23>
|
|
// * fromCelerity(): |<case sensitive letter>
|
|
// * fromPCBoard(): (@X<bg><fg>@)
|
|
// * fromWildcat(): (@<bg><fg>@ (same as PCBoard without 'X' prefix)
|
|
// * fromWWIV(): <ctrl-c><0-7>
|
|
// * fromSyncronet(): <ctrl-a><colorCode>
|
|
// See http://wiki.synchro.net/custom:colors
|
|
function fromPipeCode(s) {
|
|
if(-1 == s.indexOf('|')) {
|
|
return s; // no pipe codes present
|
|
}
|
|
|
|
var result = '';
|
|
var re = /\|(\d{2,3}|\|)/g;
|
|
var m;
|
|
var lastIndex = 0;
|
|
while((m = re.exec(s))) {
|
|
var val = m[1];
|
|
|
|
if('|' == val) {
|
|
result += '|';
|
|
continue;
|
|
}
|
|
|
|
// convert to number
|
|
val = parseInt(val, 10);
|
|
if(isNaN(val)) {
|
|
val = 0;
|
|
}
|
|
|
|
assert(val >= 0 && val <= 256);
|
|
|
|
var attr = '';
|
|
if(7 == val) {
|
|
attr = sgr('normal');
|
|
} else if (val < 7 || val >= 16) {
|
|
attr = sgr(['normal', val]);
|
|
} else if (val <= 15) {
|
|
attr = sgr(['normal', val - 8, 'bold']);
|
|
}
|
|
|
|
result += s.substr(lastIndex, m.index - lastIndex) + attr;
|
|
lastIndex = re.lastIndex;
|
|
}
|
|
|
|
result = (0 === result.length ? s : result + s.substr(lastIndex));
|
|
|
|
return result;
|
|
} |