389 lines
13 KiB
JavaScript
389 lines
13 KiB
JavaScript
/* jslint node: true */
|
|
'use strict';
|
|
|
|
// ENiGMA½
|
|
const miscUtil = require('./misc_util.js');
|
|
const iconv = require('iconv-lite');
|
|
|
|
exports.stylizeString = stylizeString;
|
|
exports.pad = pad;
|
|
exports.replaceAt = replaceAt;
|
|
exports.isPrintable = isPrintable;
|
|
exports.debugEscapedString = debugEscapedString;
|
|
exports.stringFromNullTermBuffer = stringFromNullTermBuffer;
|
|
exports.renderSubstr = renderSubstr;
|
|
exports.renderStringLength = renderStringLength;
|
|
exports.cleanControlCodes = cleanControlCodes;
|
|
|
|
// :TODO: create Unicode verison of this
|
|
const VOWELS = [ 'a', 'e', 'i', 'o', 'u' ];
|
|
VOWELS.concat(VOWELS.map(l => l.toUpperCase()));
|
|
|
|
const SIMPLE_ELITE_MAP = {
|
|
'a' : '4',
|
|
'e' : '3',
|
|
'i' : '1',
|
|
'o' : '0',
|
|
's' : '5',
|
|
't' : '7'
|
|
};
|
|
|
|
function stylizeString(s, style) {
|
|
var len = s.length;
|
|
var c;
|
|
var i;
|
|
var stylized = '';
|
|
|
|
switch(style) {
|
|
// None/normal
|
|
case 'normal' :
|
|
case 'N' :
|
|
return s;
|
|
|
|
// UPPERCASE
|
|
case 'upper' :
|
|
case 'U' :
|
|
return s.toUpperCase();
|
|
|
|
// lowercase
|
|
case 'lower' :
|
|
case 'l' :
|
|
return s.toLowerCase();
|
|
|
|
// Title Case
|
|
case 'title' :
|
|
case 'T' :
|
|
return s.replace(/\w\S*/g, function onProperCaseChar(t) {
|
|
return t.charAt(0).toUpperCase() + t.substr(1).toLowerCase();
|
|
});
|
|
|
|
// fIRST lOWER
|
|
case 'first lower' :
|
|
case 'f' :
|
|
return s.replace(/\w\S*/g, function onFirstLowerChar(t) {
|
|
return t.charAt(0).toLowerCase() + t.substr(1).toUpperCase();
|
|
});
|
|
|
|
// SMaLL VoWeLS
|
|
case 'small vowels' :
|
|
case 'v' :
|
|
for(i = 0; i < len; ++i) {
|
|
c = s[i];
|
|
if(-1 !== VOWELS.indexOf(c)) {
|
|
stylized += c.toLowerCase();
|
|
} else {
|
|
stylized += c.toUpperCase();
|
|
}
|
|
}
|
|
return stylized;
|
|
|
|
// bIg vOwELS
|
|
case 'big vowels' :
|
|
case 'V' :
|
|
for(i = 0; i < len; ++i) {
|
|
c = s[i];
|
|
if(-1 !== VOWELS.indexOf(c)) {
|
|
stylized += c.toUpperCase();
|
|
} else {
|
|
stylized += c.toLowerCase();
|
|
}
|
|
}
|
|
return stylized;
|
|
|
|
// Small i's: DEMENTiA
|
|
case 'small i' :
|
|
case 'i' :
|
|
return s.toUpperCase().replace(/I/g, 'i');
|
|
|
|
// mIxeD CaSE (random upper/lower)
|
|
case 'mixed' :
|
|
case 'M' :
|
|
for(i = 0; i < len; i++) {
|
|
if(Math.random() < 0.5) {
|
|
stylized += s[i].toUpperCase();
|
|
} else {
|
|
stylized += s[i].toLowerCase();
|
|
}
|
|
}
|
|
return stylized;
|
|
|
|
// l337 5p34k
|
|
case 'l33t' :
|
|
case '3' :
|
|
for(i = 0; i < len; ++i) {
|
|
c = SIMPLE_ELITE_MAP[s[i].toLowerCase()];
|
|
stylized += c || s[i];
|
|
}
|
|
return stylized;
|
|
}
|
|
|
|
return s;
|
|
}
|
|
|
|
// Based on http://www.webtoolkit.info/
|
|
// :TODO: Look into lodash padLeft, padRight, etc.
|
|
function pad(s, len, padChar, dir, stringSGR, padSGR, useRenderLen) {
|
|
len = miscUtil.valueWithDefault(len, 0);
|
|
padChar = miscUtil.valueWithDefault(padChar, ' ');
|
|
dir = miscUtil.valueWithDefault(dir, 'right');
|
|
stringSGR = miscUtil.valueWithDefault(stringSGR, '');
|
|
padSGR = miscUtil.valueWithDefault(padSGR, '');
|
|
useRenderLen = miscUtil.valueWithDefault(useRenderLen, true);
|
|
|
|
const renderLen = useRenderLen ? renderStringLength(s) : s.length;
|
|
const padlen = len >= renderLen ? len - renderLen : 0;
|
|
|
|
switch(dir) {
|
|
case 'L' :
|
|
case 'left' :
|
|
s = padSGR + new Array(padlen).join(padChar) + stringSGR + s;
|
|
break;
|
|
|
|
case 'C' :
|
|
case 'center' :
|
|
case 'both' :
|
|
{
|
|
const right = Math.ceil(padlen / 2);
|
|
const left = padlen - right;
|
|
s = padSGR + new Array(left + 1).join(padChar) + stringSGR + s + padSGR + new Array(right + 1).join(padChar);
|
|
}
|
|
break;
|
|
|
|
case 'R' :
|
|
case 'right' :
|
|
s = stringSGR + s + padSGR + new Array(padlen).join(padChar);
|
|
break;
|
|
|
|
default : break;
|
|
}
|
|
|
|
return stringSGR + s;
|
|
}
|
|
|
|
function replaceAt(s, n, t) {
|
|
return s.substring(0, n) + t + s.substring(n + 1);
|
|
}
|
|
|
|
const RE_NON_PRINTABLE = /[\0-\x1F\x7F-\x9F\xAD\u0378\u0379\u037F-\u0383\u038B\u038D\u03A2\u0528-\u0530\u0557\u0558\u0560\u0588\u058B-\u058E\u0590\u05C8-\u05CF\u05EB-\u05EF\u05F5-\u0605\u061C\u061D\u06DD\u070E\u070F\u074B\u074C\u07B2-\u07BF\u07FB-\u07FF\u082E\u082F\u083F\u085C\u085D\u085F-\u089F\u08A1\u08AD-\u08E3\u08FF\u0978\u0980\u0984\u098D\u098E\u0991\u0992\u09A9\u09B1\u09B3-\u09B5\u09BA\u09BB\u09C5\u09C6\u09C9\u09CA\u09CF-\u09D6\u09D8-\u09DB\u09DE\u09E4\u09E5\u09FC-\u0A00\u0A04\u0A0B-\u0A0E\u0A11\u0A12\u0A29\u0A31\u0A34\u0A37\u0A3A\u0A3B\u0A3D\u0A43-\u0A46\u0A49\u0A4A\u0A4E-\u0A50\u0A52-\u0A58\u0A5D\u0A5F-\u0A65\u0A76-\u0A80\u0A84\u0A8E\u0A92\u0AA9\u0AB1\u0AB4\u0ABA\u0ABB\u0AC6\u0ACA\u0ACE\u0ACF\u0AD1-\u0ADF\u0AE4\u0AE5\u0AF2-\u0B00\u0B04\u0B0D\u0B0E\u0B11\u0B12\u0B29\u0B31\u0B34\u0B3A\u0B3B\u0B45\u0B46\u0B49\u0B4A\u0B4E-\u0B55\u0B58-\u0B5B\u0B5E\u0B64\u0B65\u0B78-\u0B81\u0B84\u0B8B-\u0B8D\u0B91\u0B96-\u0B98\u0B9B\u0B9D\u0BA0-\u0BA2\u0BA5-\u0BA7\u0BAB-\u0BAD\u0BBA-\u0BBD\u0BC3-\u0BC5\u0BC9\u0BCE\u0BCF\u0BD1-\u0BD6\u0BD8-\u0BE5\u0BFB-\u0C00\u0C04\u0C0D\u0C11\u0C29\u0C34\u0C3A-\u0C3C\u0C45\u0C49\u0C4E-\u0C54\u0C57\u0C5A-\u0C5F\u0C64\u0C65\u0C70-\u0C77\u0C80\u0C81\u0C84\u0C8D\u0C91\u0CA9\u0CB4\u0CBA\u0CBB\u0CC5\u0CC9\u0CCE-\u0CD4\u0CD7-\u0CDD\u0CDF\u0CE4\u0CE5\u0CF0\u0CF3-\u0D01\u0D04\u0D0D\u0D11\u0D3B\u0D3C\u0D45\u0D49\u0D4F-\u0D56\u0D58-\u0D5F\u0D64\u0D65\u0D76-\u0D78\u0D80\u0D81\u0D84\u0D97-\u0D99\u0DB2\u0DBC\u0DBE\u0DBF\u0DC7-\u0DC9\u0DCB-\u0DCE\u0DD5\u0DD7\u0DE0-\u0DF1\u0DF5-\u0E00\u0E3B-\u0E3E\u0E5C-\u0E80\u0E83\u0E85\u0E86\u0E89\u0E8B\u0E8C\u0E8E-\u0E93\u0E98\u0EA0\u0EA4\u0EA6\u0EA8\u0EA9\u0EAC\u0EBA\u0EBE\u0EBF\u0EC5\u0EC7\u0ECE\u0ECF\u0EDA\u0EDB\u0EE0-\u0EFF\u0F48\u0F6D-\u0F70\u0F98\u0FBD\u0FCD\u0FDB-\u0FFF\u10C6\u10C8-\u10CC\u10CE\u10CF\u1249\u124E\u124F\u1257\u1259\u125E\u125F\u1289\u128E\u128F\u12B1\u12B6\u12B7\u12BF\u12C1\u12C6\u12C7\u12D7\u1311\u1316\u1317\u135B\u135C\u137D-\u137F\u139A-\u139F\u13F5-\u13FF\u169D-\u169F\u16F1-\u16FF\u170D\u1715-\u171F\u1737-\u173F\u1754-\u175F\u176D\u1771\u1774-\u177F\u17DE\u17DF\u17EA-\u17EF\u17FA-\u17FF\u180F\u181A-\u181F\u1878-\u187F\u18AB-\u18AF\u18F6-\u18FF\u191D-\u191F\u192C-\u192F\u193C-\u193F\u1941-\u1943\u196E\u196F\u1975-\u197F\u19AC-\u19AF\u19CA-\u19CF\u19DB-\u19DD\u1A1C\u1A1D\u1A5F\u1A7D\u1A7E\u1A8A-\u1A8F\u1A9A-\u1A9F\u1AAE-\u1AFF\u1B4C-\u1B4F\u1B7D-\u1B7F\u1BF4-\u1BFB\u1C38-\u1C3A\u1C4A-\u1C4C\u1C80-\u1CBF\u1CC8-\u1CCF\u1CF7-\u1CFF\u1DE7-\u1DFB\u1F16\u1F17\u1F1E\u1F1F\u1F46\u1F47\u1F4E\u1F4F\u1F58\u1F5A\u1F5C\u1F5E\u1F7E\u1F7F\u1FB5\u1FC5\u1FD4\u1FD5\u1FDC\u1FF0\u1FF1\u1FF5\u1FFF\u200B-\u200F\u202A-\u202E\u2060-\u206F\u2072\u2073\u208F\u209D-\u209F\u20BB-\u20CF\u20F1-\u20FF\u218A-\u218F\u23F4-\u23FF\u2427-\u243F\u244B-\u245F\u2700\u2B4D-\u2B4F\u2B5A-\u2BFF\u2C2F\u2C5F\u2CF4-\u2CF8\u2D26\u2D28-\u2D2C\u2D2E\u2D2F\u2D68-\u2D6E\u2D71-\u2D7E\u2D97-\u2D9F\u2DA7\u2DAF\u2DB7\u2DBF\u2DC7\u2DCF\u2DD7\u2DDF\u2E3C-\u2E7F\u2E9A\u2EF4-\u2EFF\u2FD6-\u2FEF\u2FFC-\u2FFF\u3040\u3097\u3098\u3100-\u3104\u312E-\u3130\u318F\u31BB-\u31BF\u31E4-\u31EF\u321F\u32FF\u4DB6-\u4DBF\u9FCD-\u9FFF\uA48D-\uA48F\uA4C7-\uA4CF\uA62C-\uA63F\uA698-\uA69E\uA6F8-\uA6FF\uA78F\uA794-\uA79F\uA7AB-\uA7F7\uA82C-\uA82F\uA83A-\uA83F\uA878-\uA87F\uA8C5-\uA8CD\uA8DA-\uA8DF\uA8FC-\uA8FF\uA954-\uA95E\uA97D-\uA97F\uA9CE\uA9DA-\uA9DD\uA9E0-\uA9FF\uAA37-\uAA3F\uAA4E\uAA4F\uAA5A\uAA5B\uAA7C-\uAA7F\uAAC3-\uAADA\uAAF7-\uAB00\uAB07\uAB08\uAB0F\uAB10\uAB17-\uAB1F\uAB27\uAB2F-\uABBF\uABEE\uABEF\uABFA-\uABFF\uD7A4-\uD7AF\uD7C7-\uD7CA\uD7FC-\uF8FF\uFA6E\uFA6F\uFADA-\uFAFF\uFB07-\uFB12\uFB18-\uFB1C\uFB37\uFB3D\uFB3F\uFB42\uFB45\uFBC2-\uFBD2\uFD40-\uFD4F\uFD90\uFD91\uFDC8-\uFDEF\uFDFE\uFDFF\uFE1A-\uFE1F\uFE27-\uFE2F\uFE53\uFE67\uFE6C-\uFE6F\uFE75\uFEFD-\uFF00\uFFBF-\uFFC1\uFFC8\uFFC9\uFFD0\uFFD1\uFFD8\uFFD9\uFFDD-\uFFDF\uFFE7\uFFEF-\uFFFB\uFFFE\uFFFF]/;
|
|
|
|
function isPrintable(s) {
|
|
//
|
|
// See the following:
|
|
// https://mathiasbynens.be/notes/javascript-unicode
|
|
// http://stackoverflow.com/questions/11598786/how-to-replace-non-printable-unicode-characters-javascript
|
|
// http://stackoverflow.com/questions/12052825/regular-expression-for-all-printable-characters-in-javascript
|
|
//
|
|
// :TODO: Probably need somthing better here.
|
|
return !RE_NON_PRINTABLE.test(s);
|
|
}
|
|
|
|
function stringLength(s) {
|
|
// :TODO: See https://mathiasbynens.be/notes/javascript-unicode
|
|
return s.length;
|
|
}
|
|
|
|
function debugEscapedString(s) {
|
|
return JSON.stringify(s).slice(1, -1);
|
|
}
|
|
|
|
function stringFromNullTermBuffer(buf, encoding) {
|
|
let nullPos = buf.indexOf(new Buffer( [ 0x00 ] ));
|
|
if(-1 === nullPos) {
|
|
nullPos = buf.length;
|
|
}
|
|
|
|
return iconv.decode(buf.slice(0, nullPos), encoding || 'utf-8');
|
|
}
|
|
|
|
const PIPE_REGEXP = /(\|[A-Z\d]{2})/g;
|
|
const ANSI_REGEXP = /[\u001b\u009b][[()#;?]*([0-9]{1,4}(?:;[0-9]{0,4})*)?([0-9A-ORZcf-npqrsuy=><])/g;
|
|
const ANSI_OR_PIPE_REGEXP = new RegExp(PIPE_REGEXP.source + '|' + ANSI_REGEXP.source, 'g');
|
|
|
|
//
|
|
// Similar to substr() but works with ANSI/Pipe code strings
|
|
//
|
|
function renderSubstr(str, start, length) {
|
|
// shortcut for empty strings
|
|
if(0 === str.length) {
|
|
return str;
|
|
}
|
|
|
|
start = start || 0;
|
|
length = length || str.length - start;
|
|
|
|
const re = ANSI_OR_PIPE_REGEXP;
|
|
re.lastIndex = 0; // we recycle the obj; must reset!
|
|
|
|
let pos = 0;
|
|
let match;
|
|
let out = '';
|
|
let renderLen = 0;
|
|
let s;
|
|
do {
|
|
pos = re.lastIndex;
|
|
match = re.exec(str);
|
|
|
|
if(match) {
|
|
if(match.index > pos) {
|
|
s = str.slice(pos + start, Math.min(match.index, pos + (length - renderLen)));
|
|
start = 0; // start offset applies only once
|
|
out += s;
|
|
renderLen += s.length;
|
|
}
|
|
|
|
out += match[0];
|
|
}
|
|
} while(renderLen < length && 0 !== re.lastIndex);
|
|
|
|
// remainder
|
|
if(pos + start < str.length && renderLen < length) {
|
|
out += str.slice(pos + start, (pos + start + (length - renderLen)));
|
|
//out += str.slice(pos + start, Math.max(1, pos + (length - renderLen - 1)));
|
|
}
|
|
|
|
return out;
|
|
}
|
|
|
|
//
|
|
// Method to return the "rendered" length taking into account Pipe and ANSI color codes.
|
|
//
|
|
// We additionally account for ANSI *forward* movement ESC sequences
|
|
// in the form of ESC[<N>C where <N> is the "go forward" character count.
|
|
//
|
|
// See also https://github.com/chalk/ansi-regex/blob/master/index.js
|
|
//
|
|
function renderStringLength(s) {
|
|
let m;
|
|
let pos;
|
|
let len = 0;
|
|
|
|
const re = ANSI_OR_PIPE_REGEXP;
|
|
re.lastIndex = 0; // we recycle the rege; reset
|
|
|
|
//
|
|
// Loop counting only literal (non-control) sequences
|
|
// paying special attention to ESC[<N>C which means forward <N>
|
|
//
|
|
do {
|
|
pos = re.lastIndex;
|
|
m = re.exec(s);
|
|
|
|
if(m) {
|
|
if(m.index > pos) {
|
|
len += s.slice(pos, m.index).length;
|
|
}
|
|
|
|
if('C' === m[3]) { // ESC[<N>C is foward/right
|
|
len += parseInt(m[2], 10) || 0;
|
|
}
|
|
}
|
|
} while(0 !== re.lastIndex);
|
|
|
|
if(pos < s.length) {
|
|
len += s.slice(pos).length;
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
|
|
// :TODO: See notes in word_wrap.js about need to consolidate the various ANSI related RegExp's
|
|
//const REGEXP_ANSI_CONTROL_CODES = /(\x1b\x5b)([\?=;0-9]*?)([0-9A-ORZcf-npsu=><])/g;
|
|
const REGEXP_ANSI_CONTROL_CODES = /(?:\x1b\x5b)([\?=;0-9]*?)([A-ORZcf-npsu=><])/g;
|
|
const ANSI_OPCODES_ALLOWED_CLEAN = [
|
|
'C', 'm' ,
|
|
'A', 'B', 'D'
|
|
];
|
|
|
|
function cleanControlCodes(input) {
|
|
let m;
|
|
let pos;
|
|
let cleaned = '';
|
|
|
|
//
|
|
// Loop through |input| adding only allowed ESC
|
|
// sequences and literals to |cleaned|
|
|
//
|
|
do {
|
|
pos = REGEXP_ANSI_CONTROL_CODES.lastIndex;
|
|
m = REGEXP_ANSI_CONTROL_CODES.exec(input);
|
|
|
|
if(m) {
|
|
if(m.index > pos) {
|
|
cleaned += input.slice(pos, m.index);
|
|
}
|
|
|
|
if(ANSI_OPCODES_ALLOWED_CLEAN.indexOf(m[2].charAt(0)) > -1) {
|
|
cleaned += m[0];
|
|
}
|
|
}
|
|
|
|
} while(0 !== REGEXP_ANSI_CONTROL_CODES.lastIndex);
|
|
|
|
// remainder
|
|
if(pos < input.length) {
|
|
cleaned += input.slice(pos);
|
|
}
|
|
|
|
return cleaned;
|
|
}
|
|
|
|
function getCleanAnsi(input) {
|
|
//
|
|
// Process |input| and produce |cleaned|, an array
|
|
// of lines with "clean" ANSI.
|
|
//
|
|
// Clean ANSI:
|
|
// * Contains only color/SGR sequences
|
|
// * All movement (up/down/left/right) removed but positioning
|
|
// left intact via spaces/etc.
|
|
//
|
|
// Temporary processing will occur in a grid. Each cell
|
|
// containing a character (defaulting to space) possibly a SGR
|
|
//
|
|
|
|
let m;
|
|
let pos;
|
|
let grid = [];
|
|
let gridPos = { row : 0, col : 0 };
|
|
|
|
function updateGrid(data, dataType) {
|
|
//
|
|
// Start at to grid[row][col] and populate val[0]...val[N]
|
|
// creating cells as necessary
|
|
//
|
|
if(!grid[gridPos.row]) {
|
|
grid[gridPos.row] = [];
|
|
}
|
|
|
|
if('literal' === dataType) {
|
|
data.forEach(c => {
|
|
grid[gridPos.row][gridPos.col] = (grid[gridPos.row][gridPos.col] || '') + c; // append to existing SGR
|
|
gridPos.col++;
|
|
});
|
|
} else if('sgr' === dataType) {
|
|
grid[gridPos.row][gridPos.col] = (grid[gridPos.row][gridPos.col] || '') + data;
|
|
}
|
|
}
|
|
|
|
function literal(s) {
|
|
let charCode;
|
|
const len = s.length;
|
|
for(let i = 0; i < len; ++i) {
|
|
charCode = s.charCodeAt(i) & 0xff;
|
|
|
|
}
|
|
}
|
|
|
|
do {
|
|
pos = REGEXP_ANSI_CONTROL_CODES.lastIndex;
|
|
m = REGEXP_ANSI_CONTROL_CODES.exec(input);
|
|
|
|
if(null !== m) {
|
|
if(m.index > pos) {
|
|
updateGrid(input.slice(pos, m.index), 'literal');
|
|
}
|
|
}
|
|
} while(0 !== REGEXP_ANSI_CONTROL_CODES.lastIndex);
|
|
}
|