mirror of
https://github.com/Swordfish90/cool-retro-term.git
synced 2024-09-12 00:00:54 +02:00
123 lines
3.5 KiB
JavaScript
123 lines
3.5 KiB
JavaScript
/*******************************************************************************
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* Copyright (c) 2013-2021 "Filippo Scognamiglio"
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* https://github.com/Swordfish90/cool-retro-term
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*
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* This file is part of cool-retro-term.
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*
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* cool-retro-term is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*******************************************************************************/
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.pragma library
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function clamp(x, min, max) {
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if (x <= min)
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return min;
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if (x >= max)
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return max;
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return x;
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}
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function lint(a, b, t) {
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return (1 - t) * a + (t) * b;
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}
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function mix(c1, c2, alpha) {
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return Qt.rgba(c1.r * alpha + c2.r * (1-alpha),
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c1.g * alpha + c2.g * (1-alpha),
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c1.b * alpha + c2.b * (1-alpha),
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c1.a * alpha + c2.a * (1-alpha))
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}
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function smoothstep(min, max, value) {
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let x = Math.max(0, Math.min(1, (value - min) / (max - min)));
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return x * x * (3 - 2 * x);
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}
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function strToColor(s){
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var r = parseInt(s.substring(1,3), 16) / 256;
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var g = parseInt(s.substring(3,5), 16) / 256;
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var b = parseInt(s.substring(5,7), 16) / 256;
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return Qt.rgba(r, g, b, 1.0);
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}
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/* Tokenizes a command into program and arguments, taking into account quoted
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* strings and backslashes.
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* Based on GLib's tokenizer, used by Gnome Terminal
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*/
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function tokenizeCommandLine(s){
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var args = [];
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var currentToken = "";
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var quoteChar = "";
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var escaped = false;
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var nextToken = function() {
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args.push(currentToken);
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currentToken = "";
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}
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var appendToCurrentToken = function(c) {
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currentToken += c;
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}
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for (var i = 0; i < s.length; i++) {
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// char followed by backslash, append literally
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if (escaped) {
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escaped = false;
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appendToCurrentToken(s[i]);
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// char inside quotes, either close or append
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} else if (quoteChar) {
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escaped = s[i] === '\\';
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if (quoteChar === s[i]) {
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quoteChar = "";
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nextToken();
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} else if (!escaped) {
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appendToCurrentToken(s[i]);
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}
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// regular char
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} else {
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escaped = s[i] === '\\';
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switch (s[i]) {
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case '\\':
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// begin escape
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break;
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case '\n':
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// newlines always delimits
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nextToken();
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break;
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case ' ':
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case '\t':
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// delimit on new whitespace
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if (currentToken) {
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nextToken();
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}
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break;
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case '\'':
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case '"':
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// begin quoted section
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quoteChar = s[i];
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break;
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default:
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appendToCurrentToken(s[i]);
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}
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}
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}
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// ignore last token if broken quotes/backslash
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if (currentToken && !escaped && !quoteChar) {
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nextToken();
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}
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return args;
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}
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