ansi_up
Version:
Convert ansi sequences in strings to colorful HTML
432 lines (431 loc) • 22.7 kB
JavaScript
"use strict";
var __makeTemplateObject = (this && this.__makeTemplateObject) || function (cooked, raw) {
if (Object.defineProperty) { Object.defineProperty(cooked, "raw", { value: raw }); } else { cooked.raw = raw; }
return cooked;
};
var PacketKind;
(function (PacketKind) {
PacketKind[PacketKind["EOS"] = 0] = "EOS";
PacketKind[PacketKind["Text"] = 1] = "Text";
PacketKind[PacketKind["Incomplete"] = 2] = "Incomplete";
PacketKind[PacketKind["ESC"] = 3] = "ESC";
PacketKind[PacketKind["Unknown"] = 4] = "Unknown";
PacketKind[PacketKind["SGR"] = 5] = "SGR";
PacketKind[PacketKind["OSCURL"] = 6] = "OSCURL";
})(PacketKind || (PacketKind = {}));
export class AnsiUp {
constructor() {
this.VERSION = "6.0.6";
this.setup_palettes();
this._use_classes = false;
this.bold = false;
this.faint = false;
this.italic = false;
this.underline = false;
this.fg = this.bg = null;
this._buffer = '';
this._url_allowlist = { 'http': 1, 'https': 1 };
this._escape_html = true;
this.boldStyle = 'font-weight:bold';
this.faintStyle = 'opacity:0.7';
this.italicStyle = 'font-style:italic';
this.underlineStyle = 'text-decoration:underline';
}
set use_classes(arg) {
this._use_classes = arg;
}
get use_classes() {
return this._use_classes;
}
set url_allowlist(arg) {
this._url_allowlist = arg;
}
get url_allowlist() {
return this._url_allowlist;
}
set escape_html(arg) {
this._escape_html = arg;
}
get escape_html() {
return this._escape_html;
}
set boldStyle(arg) { this._boldStyle = arg; }
get boldStyle() { return this._boldStyle; }
set faintStyle(arg) { this._faintStyle = arg; }
get faintStyle() { return this._faintStyle; }
set italicStyle(arg) { this._italicStyle = arg; }
get italicStyle() { return this._italicStyle; }
set underlineStyle(arg) { this._underlineStyle = arg; }
get underlineStyle() { return this._underlineStyle; }
setup_palettes() {
this.ansi_colors =
[
[
{ rgb: [0, 0, 0], class_name: "ansi-black" },
{ rgb: [187, 0, 0], class_name: "ansi-red" },
{ rgb: [0, 187, 0], class_name: "ansi-green" },
{ rgb: [187, 187, 0], class_name: "ansi-yellow" },
{ rgb: [0, 0, 187], class_name: "ansi-blue" },
{ rgb: [187, 0, 187], class_name: "ansi-magenta" },
{ rgb: [0, 187, 187], class_name: "ansi-cyan" },
{ rgb: [255, 255, 255], class_name: "ansi-white" }
],
[
{ rgb: [85, 85, 85], class_name: "ansi-bright-black" },
{ rgb: [255, 85, 85], class_name: "ansi-bright-red" },
{ rgb: [0, 255, 0], class_name: "ansi-bright-green" },
{ rgb: [255, 255, 85], class_name: "ansi-bright-yellow" },
{ rgb: [85, 85, 255], class_name: "ansi-bright-blue" },
{ rgb: [255, 85, 255], class_name: "ansi-bright-magenta" },
{ rgb: [85, 255, 255], class_name: "ansi-bright-cyan" },
{ rgb: [255, 255, 255], class_name: "ansi-bright-white" }
]
];
this.palette_256 = [];
this.ansi_colors.forEach(palette => {
palette.forEach(rec => {
this.palette_256.push(rec);
});
});
let levels = [0, 95, 135, 175, 215, 255];
for (let r = 0; r < 6; ++r) {
for (let g = 0; g < 6; ++g) {
for (let b = 0; b < 6; ++b) {
let col = { rgb: [levels[r], levels[g], levels[b]], class_name: 'truecolor' };
this.palette_256.push(col);
}
}
}
let grey_level = 8;
for (let i = 0; i < 24; ++i, grey_level += 10) {
let gry = { rgb: [grey_level, grey_level, grey_level], class_name: 'truecolor' };
this.palette_256.push(gry);
}
}
escape_txt_for_html(txt) {
if (!this._escape_html)
return txt;
return txt.replace(/[&<>"']/gm, (str) => {
if (str === "&")
return "&";
if (str === "<")
return "<";
if (str === ">")
return ">";
if (str === "\"")
return """;
if (str === "'")
return "'";
});
}
append_buffer(txt) {
var str = this._buffer + txt;
this._buffer = str;
}
get_next_packet() {
var pkt = {
kind: PacketKind.EOS,
text: '',
url: ''
};
var len = this._buffer.length;
if (len == 0)
return pkt;
var pos = this._buffer.indexOf("\x1B");
if (pos == -1) {
pkt.kind = PacketKind.Text;
pkt.text = this._buffer;
this._buffer = '';
return pkt;
}
if (pos > 0) {
pkt.kind = PacketKind.Text;
pkt.text = this._buffer.slice(0, pos);
this._buffer = this._buffer.slice(pos);
return pkt;
}
if (pos == 0) {
if (len < 3) {
pkt.kind = PacketKind.Incomplete;
return pkt;
}
var next_char = this._buffer.charAt(1);
if ((next_char != '[') && (next_char != ']') && (next_char != '(')) {
pkt.kind = PacketKind.ESC;
pkt.text = this._buffer.slice(0, 1);
this._buffer = this._buffer.slice(1);
return pkt;
}
if (next_char == '[') {
if (!this._csi_regex) {
this._csi_regex = rgx(templateObject_1 || (templateObject_1 = __makeTemplateObject(["\n ^ # beginning of line\n #\n # First attempt\n (?: # legal sequence\n \u001B[ # CSI\n ([<-?]?) # private-mode char\n ([d;]*) # any digits or semicolons\n ([ -/]? # an intermediate modifier\n [@-~]) # the command\n )\n | # alternate (second attempt)\n (?: # illegal sequence\n \u001B[ # CSI\n [ -~]* # anything legal\n ([\0-\u001F:]) # anything illegal\n )\n "], ["\n ^ # beginning of line\n #\n # First attempt\n (?: # legal sequence\n \\x1b\\[ # CSI\n ([\\x3c-\\x3f]?) # private-mode char\n ([\\d;]*) # any digits or semicolons\n ([\\x20-\\x2f]? # an intermediate modifier\n [\\x40-\\x7e]) # the command\n )\n | # alternate (second attempt)\n (?: # illegal sequence\n \\x1b\\[ # CSI\n [\\x20-\\x7e]* # anything legal\n ([\\x00-\\x1f:]) # anything illegal\n )\n "])));
}
let match = this._buffer.match(this._csi_regex);
if (match === null) {
pkt.kind = PacketKind.Incomplete;
return pkt;
}
if (match[4]) {
pkt.kind = PacketKind.ESC;
pkt.text = this._buffer.slice(0, 1);
this._buffer = this._buffer.slice(1);
return pkt;
}
if ((match[1] != '') || (match[3] != 'm'))
pkt.kind = PacketKind.Unknown;
else
pkt.kind = PacketKind.SGR;
pkt.text = match[2];
var rpos = match[0].length;
this._buffer = this._buffer.slice(rpos);
return pkt;
}
else if (next_char == ']') {
if (len < 4) {
pkt.kind = PacketKind.Incomplete;
return pkt;
}
if ((this._buffer.charAt(2) != '8')
|| (this._buffer.charAt(3) != ';')) {
pkt.kind = PacketKind.ESC;
pkt.text = this._buffer.slice(0, 1);
this._buffer = this._buffer.slice(1);
return pkt;
}
if (!this._osc_st) {
this._osc_st = rgxG(templateObject_2 || (templateObject_2 = __makeTemplateObject(["\n (?: # legal sequence\n (\u001B\\) # ESC | # alternate\n (\u0007) # BEL (what xterm did)\n )\n | # alternate (second attempt)\n ( # illegal sequence\n [\0-\u0006] # anything illegal\n | # alternate\n [\b-\u001A] # anything illegal\n | # alternate\n [\u001C-\u001F] # anything illegal\n )\n "], ["\n (?: # legal sequence\n (\\x1b\\\\) # ESC \\\n | # alternate\n (\\x07) # BEL (what xterm did)\n )\n | # alternate (second attempt)\n ( # illegal sequence\n [\\x00-\\x06] # anything illegal\n | # alternate\n [\\x08-\\x1a] # anything illegal\n | # alternate\n [\\x1c-\\x1f] # anything illegal\n )\n "])));
}
this._osc_st.lastIndex = 0;
{
let match = this._osc_st.exec(this._buffer);
if (match === null) {
pkt.kind = PacketKind.Incomplete;
return pkt;
}
if (match[3]) {
pkt.kind = PacketKind.ESC;
pkt.text = this._buffer.slice(0, 1);
this._buffer = this._buffer.slice(1);
return pkt;
}
}
{
let match = this._osc_st.exec(this._buffer);
if (match === null) {
pkt.kind = PacketKind.Incomplete;
return pkt;
}
if (match[3]) {
pkt.kind = PacketKind.ESC;
pkt.text = this._buffer.slice(0, 1);
this._buffer = this._buffer.slice(1);
return pkt;
}
}
if (!this._osc_regex) {
this._osc_regex = rgx(templateObject_3 || (templateObject_3 = __makeTemplateObject(["\n ^ # beginning of line\n #\n \u001B]8; # OSC Hyperlink\n [ -:<-~]* # params (excluding ;)\n ; # end of params\n ([!-~]{0,512}) # URL capture\n (?: # ST\n (?:\u001B\\) # ESC | # alternate\n (?:\u0007) # BEL (what xterm did)\n )\n ([ -~]+) # TEXT capture\n \u001B]8;; # OSC Hyperlink End\n (?: # ST\n (?:\u001B\\) # ESC | # alternate\n (?:\u0007) # BEL (what xterm did)\n )\n "], ["\n ^ # beginning of line\n #\n \\x1b\\]8; # OSC Hyperlink\n [\\x20-\\x3a\\x3c-\\x7e]* # params (excluding ;)\n ; # end of params\n ([\\x21-\\x7e]{0,512}) # URL capture\n (?: # ST\n (?:\\x1b\\\\) # ESC \\\n | # alternate\n (?:\\x07) # BEL (what xterm did)\n )\n ([\\x20-\\x7e]+) # TEXT capture\n \\x1b\\]8;; # OSC Hyperlink End\n (?: # ST\n (?:\\x1b\\\\) # ESC \\\n | # alternate\n (?:\\x07) # BEL (what xterm did)\n )\n "])));
}
let match = this._buffer.match(this._osc_regex);
if (match === null) {
pkt.kind = PacketKind.ESC;
pkt.text = this._buffer.slice(0, 1);
this._buffer = this._buffer.slice(1);
return pkt;
}
pkt.kind = PacketKind.OSCURL;
pkt.url = match[1];
pkt.text = match[2];
var rpos = match[0].length;
this._buffer = this._buffer.slice(rpos);
return pkt;
}
else if (next_char == '(') {
pkt.kind = PacketKind.Unknown;
this._buffer = this._buffer.slice(3);
return pkt;
}
}
}
ansi_to_html(txt) {
this.append_buffer(txt);
var blocks = [];
while (true) {
var packet = this.get_next_packet();
if ((packet.kind == PacketKind.EOS)
|| (packet.kind == PacketKind.Incomplete))
break;
if ((packet.kind == PacketKind.ESC)
|| (packet.kind == PacketKind.Unknown))
continue;
if (packet.kind == PacketKind.Text)
blocks.push(this.transform_to_html(this.with_state(packet)));
else if (packet.kind == PacketKind.SGR)
this.process_ansi(packet);
else if (packet.kind == PacketKind.OSCURL)
blocks.push(this.process_hyperlink(packet));
}
return blocks.join("");
}
with_state(pkt) {
return { bold: this.bold, faint: this.faint, italic: this.italic, underline: this.underline, fg: this.fg, bg: this.bg, text: pkt.text };
}
process_ansi(pkt) {
let sgr_cmds = pkt.text.split(';');
while (sgr_cmds.length > 0) {
let sgr_cmd_str = sgr_cmds.shift();
let num = parseInt(sgr_cmd_str, 10);
if (isNaN(num) || num === 0) {
this.fg = null;
this.bg = null;
this.bold = false;
this.faint = false;
this.italic = false;
this.underline = false;
}
else if (num === 1) {
this.bold = true;
}
else if (num === 2) {
this.faint = true;
}
else if (num === 3) {
this.italic = true;
}
else if (num === 4) {
this.underline = true;
}
else if (num === 21) {
this.bold = false;
}
else if (num === 22) {
this.faint = false;
this.bold = false;
}
else if (num === 23) {
this.italic = false;
}
else if (num === 24) {
this.underline = false;
}
else if (num === 39) {
this.fg = null;
}
else if (num === 49) {
this.bg = null;
}
else if ((num >= 30) && (num < 38)) {
this.fg = this.ansi_colors[0][(num - 30)];
}
else if ((num >= 40) && (num < 48)) {
this.bg = this.ansi_colors[0][(num - 40)];
}
else if ((num >= 90) && (num < 98)) {
this.fg = this.ansi_colors[1][(num - 90)];
}
else if ((num >= 100) && (num < 108)) {
this.bg = this.ansi_colors[1][(num - 100)];
}
else if (num === 38 || num === 48) {
if (sgr_cmds.length > 0) {
let is_foreground = (num === 38);
let mode_cmd = sgr_cmds.shift();
if (mode_cmd === '5' && sgr_cmds.length > 0) {
let palette_index = parseInt(sgr_cmds.shift(), 10);
if (palette_index >= 0 && palette_index <= 255) {
if (is_foreground)
this.fg = this.palette_256[palette_index];
else
this.bg = this.palette_256[palette_index];
}
}
if (mode_cmd === '2' && sgr_cmds.length > 2) {
let r = parseInt(sgr_cmds.shift(), 10);
let g = parseInt(sgr_cmds.shift(), 10);
let b = parseInt(sgr_cmds.shift(), 10);
if ((r >= 0 && r <= 255) && (g >= 0 && g <= 255) && (b >= 0 && b <= 255)) {
let c = { rgb: [r, g, b], class_name: 'truecolor' };
if (is_foreground)
this.fg = c;
else
this.bg = c;
}
}
}
}
}
}
transform_to_html(fragment) {
let txt = fragment.text;
if (txt.length === 0)
return txt;
txt = this.escape_txt_for_html(txt);
if (!fragment.bold && !fragment.italic && !fragment.faint && !fragment.underline && fragment.fg === null && fragment.bg === null)
return txt;
let styles = [];
let classes = [];
let fg = fragment.fg;
let bg = fragment.bg;
if (fragment.bold)
styles.push(this._boldStyle);
if (fragment.faint)
styles.push(this._faintStyle);
if (fragment.italic)
styles.push(this._italicStyle);
if (fragment.underline)
styles.push(this._underlineStyle);
if (!this._use_classes) {
if (fg)
styles.push(`color:rgb(${fg.rgb.join(',')})`);
if (bg)
styles.push(`background-color:rgb(${bg.rgb})`);
}
else {
if (fg) {
if (fg.class_name !== 'truecolor') {
classes.push(`${fg.class_name}-fg`);
}
else {
styles.push(`color:rgb(${fg.rgb.join(',')})`);
}
}
if (bg) {
if (bg.class_name !== 'truecolor') {
classes.push(`${bg.class_name}-bg`);
}
else {
styles.push(`background-color:rgb(${bg.rgb.join(',')})`);
}
}
}
let class_string = '';
let style_string = '';
if (classes.length)
class_string = ` class="${classes.join(' ')}"`;
if (styles.length)
style_string = ` style="${styles.join(';')}"`;
return `<span${style_string}${class_string}>${txt}</span>`;
}
;
process_hyperlink(pkt) {
let parts = pkt.url.split(':');
if (parts.length < 1)
return '';
if (!this._url_allowlist[parts[0]])
return '';
let result = `<a href="${this.escape_txt_for_html(pkt.url)}">${this.escape_txt_for_html(pkt.text)}</a>`;
return result;
}
}
function rgx(tmplObj, ...subst) {
let regexText = tmplObj.raw[0];
let wsrgx = /^\s+|\s+\n|\s*#[\s\S]*?\n|\n/gm;
let txt2 = regexText.replace(wsrgx, '');
return new RegExp(txt2);
}
function rgxG(tmplObj, ...subst) {
let regexText = tmplObj.raw[0];
let wsrgx = /^\s+|\s+\n|\s*#[\s\S]*?\n|\n/gm;
let txt2 = regexText.replace(wsrgx, '');
return new RegExp(txt2, 'g');
}
var templateObject_1, templateObject_2, templateObject_3;