1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
|
<!DOCTYPE HTML>
<html lang="en" class="light" dir="ltr">
<head>
<!-- Book generated using mdBook -->
<meta charset="UTF-8">
<title>html - Notes</title>
<!-- Custom HTML head -->
<meta name="description" content="">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="theme-color" content="#ffffff">
<link rel="icon" href="../favicon.svg">
<link rel="shortcut icon" href="../favicon.png">
<link rel="stylesheet" href="../css/variables.css">
<link rel="stylesheet" href="../css/general.css">
<link rel="stylesheet" href="../css/chrome.css">
<link rel="stylesheet" href="../css/print.css" media="print">
<!-- Fonts -->
<link rel="stylesheet" href="../FontAwesome/css/font-awesome.css">
<link rel="stylesheet" href="../fonts/fonts.css">
<!-- Highlight.js Stylesheets -->
<link rel="stylesheet" href="../highlight.css">
<link rel="stylesheet" href="../tomorrow-night.css">
<link rel="stylesheet" href="../ayu-highlight.css">
<!-- Custom theme stylesheets -->
</head>
<body class="sidebar-visible no-js">
<div id="body-container">
<!-- Provide site root to javascript -->
<script>
var path_to_root = "../";
var default_theme = window.matchMedia("(prefers-color-scheme: dark)").matches ? "navy" : "light";
</script>
<!-- Work around some values being stored in localStorage wrapped in quotes -->
<script>
try {
var theme = localStorage.getItem('mdbook-theme');
var sidebar = localStorage.getItem('mdbook-sidebar');
if (theme.startsWith('"') && theme.endsWith('"')) {
localStorage.setItem('mdbook-theme', theme.slice(1, theme.length - 1));
}
if (sidebar.startsWith('"') && sidebar.endsWith('"')) {
localStorage.setItem('mdbook-sidebar', sidebar.slice(1, sidebar.length - 1));
}
} catch (e) { }
</script>
<!-- Set the theme before any content is loaded, prevents flash -->
<script>
var theme;
try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
if (theme === null || theme === undefined) { theme = default_theme; }
var html = document.querySelector('html');
html.classList.remove('light')
html.classList.add(theme);
var body = document.querySelector('body');
body.classList.remove('no-js')
body.classList.add('js');
</script>
<input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
<!-- Hide / unhide sidebar before it is displayed -->
<script>
var body = document.querySelector('body');
var sidebar = null;
var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
if (document.body.clientWidth >= 1080) {
try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
sidebar = sidebar || 'visible';
} else {
sidebar = 'hidden';
}
sidebar_toggle.checked = sidebar === 'visible';
body.classList.remove('sidebar-visible');
body.classList.add("sidebar-" + sidebar);
</script>
<nav id="sidebar" class="sidebar" aria-label="Table of contents">
<div class="sidebar-scrollbox">
<ol class="chapter"><li class="chapter-item expanded affix "><a href="../intro.html">Introduction</a></li><li class="chapter-item expanded "><a href="../shells/index.html"><strong aria-hidden="true">1.</strong> Shells</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../shells/zsh.html"><strong aria-hidden="true">1.1.</strong> zsh</a></li><li class="chapter-item expanded "><a href="../shells/bash.html"><strong aria-hidden="true">1.2.</strong> bash</a></li><li class="chapter-item expanded "><a href="../shells/fish.html"><strong aria-hidden="true">1.3.</strong> fish</a></li></ol></li><li class="chapter-item expanded "><a href="../cli/index.html"><strong aria-hidden="true">2.</strong> CLI foo</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../cli/awk.html"><strong aria-hidden="true">2.1.</strong> awk</a></li><li class="chapter-item expanded "><a href="../cli/sed.html"><strong aria-hidden="true">2.2.</strong> sed</a></li><li class="chapter-item expanded "><a href="../cli/column.html"><strong aria-hidden="true">2.3.</strong> column</a></li><li class="chapter-item expanded "><a href="../cli/sort.html"><strong aria-hidden="true">2.4.</strong> sort</a></li><li class="chapter-item expanded "><a href="../cli/tr.html"><strong aria-hidden="true">2.5.</strong> tr</a></li></ol></li><li class="chapter-item expanded "><a href="../tools/index.html"><strong aria-hidden="true">3.</strong> Tools</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../tools/tmux.html"><strong aria-hidden="true">3.1.</strong> tmux</a></li><li class="chapter-item expanded "><a href="../tools/emacs.html"><strong aria-hidden="true">3.2.</strong> emacs</a></li><li class="chapter-item expanded "><a href="../tools/gpg.html"><strong aria-hidden="true">3.3.</strong> gpg</a></li><li class="chapter-item expanded "><a href="../tools/radare2.html"><strong aria-hidden="true">3.4.</strong> radare2</a></li><li class="chapter-item expanded "><a href="../tools/qemu.html"><strong aria-hidden="true">3.5.</strong> qemu</a></li><li class="chapter-item expanded "><a href="../tools/pacman.html"><strong aria-hidden="true">3.6.</strong> pacman</a></li><li class="chapter-item expanded "><a href="../tools/dot.html"><strong aria-hidden="true">3.7.</strong> dot</a></li><li class="chapter-item expanded "><a href="../tools/ffmpeg.html"><strong aria-hidden="true">3.8.</strong> ffmpeg</a></li><li class="chapter-item expanded "><a href="../tools/gnuplot.html"><strong aria-hidden="true">3.9.</strong> gnuplot</a></li><li class="chapter-item expanded "><a href="../tools/restic.html"><strong aria-hidden="true">3.10.</strong> restic</a></li></ol></li><li class="chapter-item expanded "><a href="../monitor/index.html"><strong aria-hidden="true">4.</strong> Resource analysis & monitor</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../monitor/lsof.html"><strong aria-hidden="true">4.1.</strong> lsof</a></li><li class="chapter-item expanded "><a href="../monitor/pidstat.html"><strong aria-hidden="true">4.2.</strong> pidstat</a></li><li class="chapter-item expanded "><a href="../monitor/pgrep.html"><strong aria-hidden="true">4.3.</strong> pgrep</a></li><li class="chapter-item expanded "><a href="../monitor/ps.html"><strong aria-hidden="true">4.4.</strong> ps</a></li><li class="chapter-item expanded "><a href="../monitor/pmap.html"><strong aria-hidden="true">4.5.</strong> pmap</a></li><li class="chapter-item expanded "><a href="../monitor/pstack.html"><strong aria-hidden="true">4.6.</strong> pstack</a></li></ol></li><li class="chapter-item expanded "><a href="../trace_profile/index.html"><strong aria-hidden="true">5.</strong> Trace and Profile</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../trace_profile/time.html"><strong aria-hidden="true">5.1.</strong> time</a></li><li class="chapter-item expanded "><a href="../trace_profile/strace.html"><strong aria-hidden="true">5.2.</strong> strace</a></li><li class="chapter-item expanded "><a href="../trace_profile/ltrace.html"><strong aria-hidden="true">5.3.</strong> ltrace</a></li><li class="chapter-item expanded "><a href="../trace_profile/perf.html"><strong aria-hidden="true">5.4.</strong> perf</a></li><li class="chapter-item expanded "><a href="../trace_profile/oprofile.html"><strong aria-hidden="true">5.5.</strong> OProfile</a></li><li class="chapter-item expanded "><a href="../trace_profile/callgrind.html"><strong aria-hidden="true">5.6.</strong> callgrind</a></li></ol></li><li class="chapter-item expanded "><a href="../debug/index.html"><strong aria-hidden="true">6.</strong> Debug</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../debug/gdb.html"><strong aria-hidden="true">6.1.</strong> gdb</a></li><li class="chapter-item expanded "><a href="../debug/gdbserver.html"><strong aria-hidden="true">6.2.</strong> gdbserver</a></li></ol></li><li class="chapter-item expanded "><a href="../binary/index.html"><strong aria-hidden="true">7.</strong> Binary</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../binary/od.html"><strong aria-hidden="true">7.1.</strong> od</a></li><li class="chapter-item expanded "><a href="../binary/xxd.html"><strong aria-hidden="true">7.2.</strong> xxd</a></li><li class="chapter-item expanded "><a href="../binary/readelf.html"><strong aria-hidden="true">7.3.</strong> readelf</a></li><li class="chapter-item expanded "><a href="../binary/objdump.html"><strong aria-hidden="true">7.4.</strong> objdump</a></li><li class="chapter-item expanded "><a href="../binary/nm.html"><strong aria-hidden="true">7.5.</strong> nm</a></li></ol></li><li class="chapter-item expanded "><a href="../development/index.html"><strong aria-hidden="true">8.</strong> Development</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../development/c++filt.html"><strong aria-hidden="true">8.1.</strong> c++filt</a></li><li class="chapter-item expanded "><a href="../development/c++.html"><strong aria-hidden="true">8.2.</strong> c++</a></li><li class="chapter-item expanded "><a href="../development/glibc.html"><strong aria-hidden="true">8.3.</strong> glibc</a></li><li class="chapter-item expanded "><a href="../development/gcc.html"><strong aria-hidden="true">8.4.</strong> gcc</a></li><li class="chapter-item expanded "><a href="../development/git.html"><strong aria-hidden="true">8.5.</strong> git</a></li><li class="chapter-item expanded "><a href="../development/cmake.html"><strong aria-hidden="true">8.6.</strong> cmake</a></li><li class="chapter-item expanded "><a href="../development/make.html"><strong aria-hidden="true">8.7.</strong> make</a></li><li class="chapter-item expanded "><a href="../development/ld.so.html"><strong aria-hidden="true">8.8.</strong> ld.so</a></li><li class="chapter-item expanded "><a href="../development/symbolver.html"><strong aria-hidden="true">8.9.</strong> symbol versioning</a></li><li class="chapter-item expanded "><a href="../development/python.html"><strong aria-hidden="true">8.10.</strong> python</a></li><li class="chapter-item expanded "><a href="../development/gcov.html"><strong aria-hidden="true">8.11.</strong> gcov</a></li><li class="chapter-item expanded "><a href="../development/pgo.html"><strong aria-hidden="true">8.12.</strong> pgo</a></li></ol></li><li class="chapter-item expanded "><a href="../linux/index.html"><strong aria-hidden="true">9.</strong> Linux</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../linux/systemd.html"><strong aria-hidden="true">9.1.</strong> systemd</a></li><li class="chapter-item expanded "><a href="../linux/coredump.html"><strong aria-hidden="true">9.2.</strong> coredump</a></li><li class="chapter-item expanded "><a href="../linux/ptrace_scope.html"><strong aria-hidden="true">9.3.</strong> ptrace_scope</a></li><li class="chapter-item expanded "><a href="../linux/cryptsetup.html"><strong aria-hidden="true">9.4.</strong> cryptsetup</a></li><li class="chapter-item expanded "><a href="../linux/swap.html"><strong aria-hidden="true">9.5.</strong> swap</a></li><li class="chapter-item expanded "><a href="../linux/input.html"><strong aria-hidden="true">9.6.</strong> input</a></li><li class="chapter-item expanded "><a href="../linux/acl.html"><strong aria-hidden="true">9.7.</strong> acl</a></li><li class="chapter-item expanded "><a href="../linux/zfs.html"><strong aria-hidden="true">9.8.</strong> zfs</a></li></ol></li><li class="chapter-item expanded "><a href="../network/index.html"><strong aria-hidden="true">10.</strong> Network</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../network/ss.html"><strong aria-hidden="true">10.1.</strong> ss</a></li><li class="chapter-item expanded "><a href="../network/tcpdump.html"><strong aria-hidden="true">10.2.</strong> tcpdump</a></li><li class="chapter-item expanded "><a href="../network/tshark.html"><strong aria-hidden="true">10.3.</strong> tshark</a></li><li class="chapter-item expanded "><a href="../network/firewall-cmd.html"><strong aria-hidden="true">10.4.</strong> firewall-cmd</a></li><li class="chapter-item expanded "><a href="../network/nftables.html"><strong aria-hidden="true">10.5.</strong> nftables</a></li></ol></li><li class="chapter-item expanded "><a href="../web/index.html"><strong aria-hidden="true">11.</strong> Web</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../web/html.html" class="active"><strong aria-hidden="true">11.1.</strong> html</a></li><li class="chapter-item expanded "><a href="../web/css.html"><strong aria-hidden="true">11.2.</strong> css</a></li><li class="chapter-item expanded "><a href="../web/chartjs.html"><strong aria-hidden="true">11.3.</strong> chartjs</a></li></ol></li><li class="chapter-item expanded "><a href="../arch/index.html"><strong aria-hidden="true">12.</strong> Arch</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../arch/x86_64.html"><strong aria-hidden="true">12.1.</strong> x86_64</a></li><li class="chapter-item expanded "><a href="../arch/armv8.html"><strong aria-hidden="true">12.2.</strong> armv8</a></li><li class="chapter-item expanded "><a href="../arch/arm64.html"><strong aria-hidden="true">12.3.</strong> arm64</a></li><li class="chapter-item expanded "><a href="../arch/armv7.html"><strong aria-hidden="true">12.4.</strong> armv7</a></li><li class="chapter-item expanded "><a href="../arch/riscv.html"><strong aria-hidden="true">12.5.</strong> riscv</a></li></ol></li></ol>
</div>
<div id="sidebar-resize-handle" class="sidebar-resize-handle">
<div class="sidebar-resize-indicator"></div>
</div>
</nav>
<!-- Track and set sidebar scroll position -->
<script>
var sidebarScrollbox = document.querySelector('#sidebar .sidebar-scrollbox');
sidebarScrollbox.addEventListener('click', function(e) {
if (e.target.tagName === 'A') {
sessionStorage.setItem('sidebar-scroll', sidebarScrollbox.scrollTop);
}
}, { passive: true });
var sidebarScrollTop = sessionStorage.getItem('sidebar-scroll');
sessionStorage.removeItem('sidebar-scroll');
if (sidebarScrollTop) {
// preserve sidebar scroll position when navigating via links within sidebar
sidebarScrollbox.scrollTop = sidebarScrollTop;
} else {
// scroll sidebar to current active section when navigating via "next/previous chapter" buttons
var activeSection = document.querySelector('#sidebar .active');
if (activeSection) {
activeSection.scrollIntoView({ block: 'center' });
}
}
</script>
<div id="page-wrapper" class="page-wrapper">
<div class="page">
<div id="menu-bar-hover-placeholder"></div>
<div id="menu-bar" class="menu-bar sticky">
<div class="left-buttons">
<label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
<i class="fa fa-bars"></i>
</label>
<button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
<i class="fa fa-paint-brush"></i>
</button>
<ul id="theme-list" class="theme-popup" aria-label="Themes" role="menu">
<li role="none"><button role="menuitem" class="theme" id="light">Light</button></li>
<li role="none"><button role="menuitem" class="theme" id="rust">Rust</button></li>
<li role="none"><button role="menuitem" class="theme" id="coal">Coal</button></li>
<li role="none"><button role="menuitem" class="theme" id="navy">Navy</button></li>
<li role="none"><button role="menuitem" class="theme" id="ayu">Ayu</button></li>
</ul>
<button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
<i class="fa fa-search"></i>
</button>
</div>
<h1 class="menu-title">Notes</h1>
<div class="right-buttons">
<a href="../print.html" title="Print this book" aria-label="Print this book">
<i id="print-button" class="fa fa-print"></i>
</a>
<a href="https://github.com/johannst/notes" title="Git repository" aria-label="Git repository">
<i id="git-repository-button" class="fa fa-github"></i>
</a>
</div>
</div>
<div id="search-wrapper" class="hidden">
<form id="searchbar-outer" class="searchbar-outer">
<input type="search" id="searchbar" name="searchbar" placeholder="Search this book ..." aria-controls="searchresults-outer" aria-describedby="searchresults-header">
</form>
<div id="searchresults-outer" class="searchresults-outer hidden">
<div id="searchresults-header" class="searchresults-header"></div>
<ul id="searchresults">
</ul>
</div>
</div>
<!-- Apply ARIA attributes after the sidebar and the sidebar toggle button are added to the DOM -->
<script>
document.getElementById('sidebar-toggle').setAttribute('aria-expanded', sidebar === 'visible');
document.getElementById('sidebar').setAttribute('aria-hidden', sidebar !== 'visible');
Array.from(document.querySelectorAll('#sidebar a')).forEach(function(link) {
link.setAttribute('tabIndex', sidebar === 'visible' ? 0 : -1);
});
</script>
<div id="content" class="content">
<main>
<h1 id="html"><a class="header" href="#html">html</a></h1>
<h2 id="collapsible-element"><a class="header" href="#collapsible-element">Collapsible element</a></h2>
<p><a href="src/details.html">Rendered html</a></p>
<pre><code class="language-html"><details>
<summary>Some text goes here</summary>
... some more text goes here.
</details>
</code></pre>
<blockquote>
<p>With the <code>open</code> attribute <code><details open></code> the details are unfolded by default.</p>
</blockquote>
<h1 id="minimal-2-column-layout"><a class="header" href="#minimal-2-column-layout">Minimal 2 column layout</a></h1>
<p><a href="src/grid-2col.html">Rendered html</a></p>
<pre><code class="language-html"><style>
.grid-2col {
display: grid;
grid-template-columns: 2fr 1fr;
gap: 1em
}
.col1 {
grid-column-start: 1;
background-color: red;
padding-left: 1em;
}
.col2 {
grid-column-start: 2;
background-color: green;
padding-left: 1em;
}
</style>
<div class="grid-2col">
<div class="col1">
<p>Some text in the first column.</p>
</div>
<div class="col2">
<p>Some text in the second column.</p>
</div>
</div>
</code></pre>
<h1 id="minimal-grid-area"><a class="header" href="#minimal-grid-area">Minimal grid area</a></h1>
<p><a href="src/grid-area.html">Rendered html</a></p>
<pre><code class="language-html"><style>
.page-grid {
display: grid;
grid-template-columns: 1fr 2fr;
grid-template-areas:
"h h"
"s m"
"f f";
gap: 1em;
}
.gh {
grid-area: h;
background-color: orange;
}
.gs {
grid-area: s;
background-color: green;
}
.gm {
grid-area: m;
background-color: gray;
}
.gf {
grid-area: f;
background-color: yellow;
}
.nav-items {
display: flex; /* flexbox model => flexible layout on row */
justify-content: space-around; /* align flex boxes horizontally with space around */
align-items: center; /* center flex items vertically */
list-style: none;
}
p {
margin: 1em;
}
</style>
<div class="page-grid">
<div class="gh">
<ul class="nav-items">
<li class="nav-item"><a href="">aa</a></li>
<li class="nav-item"><a href="">bb</a></li>
<li class="nav-item"><a href="">cc</a></li>
</ul>
</div>
<div class="gs">
<p>Some text in the second column.</p>
</div>
<div class="gm">
<p>Some text in the second column.</p>
</div>
<div class="gf">
<p>Some text in the second column.</p>
</div>
</div>
</code></pre>
<h1 id="minimal-tabs"><a class="header" href="#minimal-tabs">Minimal tabs</a></h1>
<p><a href="src/tabs.html">Rendered html</a></p>
<pre><code class="language-html"><script>
const showTab = (E, T) => {
const TABS = Array.from(document.getElementsByClassName("content"));
TABS.forEach(T => {
T.style.display = "none";
});
document.getElementById(T).style.display = "block";
};
window.onload = () => {
document.getElementById("bTab1").onclick = (E) => {
showTab(E, "tTab1");
};
document.getElementById("bTab2").onclick = (E) => {
showTab(E, "tTab2");
};
}
</script>
<button type="button" id="bTab1">Tab1</button>
<button type="button" id="bTab2">Tab2</button>
<div id="tTab1" class="content" style="display: block;">
<p>Some content goes here ...</p>
</div>
<div id="tTab2" class="content" style="display: none;">
<p>... and there.</p>
</div>
</code></pre>
<h1 id="minimal-tags-filter"><a class="header" href="#minimal-tags-filter">Minimal tags filter</a></h1>
<h2 id="single-active-filter-tag"><a class="header" href="#single-active-filter-tag">Single active filter tag</a></h2>
<p><a href="src/tags.html">Rendered html</a></p>
<pre><code class="language-html"><script>
/// Map HTML elements to display kinds.
const elementToDisplay = (E) => {
switch (E.nodeName) {
case "LI":
return "list-item";
default:
return "block";
}
}
/// Display only elements with tag T.
const showTag = (T) => {
Array.from(document.getElementsByClassName("content")).forEach(E => {
E.style.display = "none";
});
Array.from(document.getElementsByClassName(T)).forEach(E => {
E.style.display = elementToDisplay(E);
});
};
/// Initialize buttons and callbacks.
window.onload = () => {
// Handle to the filter placeholder.
const filter = document.getElementById("filter");
// Create buttons for each tag T.
["arm", "x86", "clear"].forEach(T => {
const btn = document.createElement("button");
btn.innerHTML = T;
btn.onclick = T === "clear"
? (E) => {
showTag("content");
filter.innerHTML = "";
}
: (E) => {
showTag(T);
filter.innerHTML = `<p>filter: <mark>${T}</mark></p>`;
};
document.body.prepend(btn);
});
}
</script>
<div id = "filter"></div>
<ul>
<li class = "content arm">arm 1</li>
<li class = "content arm">arm 2</li>
<li class = "content arm">arm 3</li>
<li class = "content x86">x86 1</li>
<li class = "content x86">x86 2</li>
<li class = "content x86 arm">x86 + arm</li>
</ul>
<div class = "content arm">arm</div>
<div class = "content arm x86">arm x86</div>
<div class = "content x86">x86</div>
</code></pre>
<h2 id="multiple-active-filter-tags"><a class="header" href="#multiple-active-filter-tags">Multiple active filter tags</a></h2>
<p><a href="src/tags2.html">Rendered html</a></p>
<pre><code class="language-html"><script>
/// Map HTML elements to display kinds.
const elementToDisplay = (E) => {
switch (E.nodeName) {
case "LI":
return "list-item";
default:
return "block";
}
}
/// Display only elements which have all TAGS.
const showTag = (TAGS) => {
Array.from(document.getElementsByClassName("content")).forEach(E => {
// Display the element, iff the element contains every tag T in TAGS.
if (TAGS.every(T => Array.from(E.classList).includes(T))) {
E.style.display = elementToDisplay(E);
} else {
E.style.display = "none";
}
});
};
/// Initialize buttons and callbacks.
window.onload = () => {
// Handle to the filter placeholder.
const filter_node = document.getElementById("filter");
// Active filter tags.
const filter = Array();
// Create buttons for each tag T.
["arm", "x86", "clear"].forEach(T => {
const btn = document.createElement("button");
btn.innerHTML = T;
btn.onclick = T === "clear"
? (E) => {
// Clear active filter.
while (filter.length) { filter.pop(); }
showTag(["content"]);
filter_node.innerHTML = "<p>filter:</p>";
}
: (E) => {
// Toggle tag T in Active filter.
if ((idx = filter.indexOf(T)) > -1) {
filter.splice(idx, 1);
} else {
filter.push(T);
}
showTag(filter);
out = filter.map(T => `<mark>${T}</mark>`).join(" + ");
filter_node.innerHTML = `<p>filter: ${out}</p>`;
};
document.body.prepend(btn);
});
}
</script>
<div id = "filter"><p>filter:</p></div>
<ul>
<li class = "content arm">arm 1</li>
<li class = "content arm">arm 2</li>
<li class = "content arm">arm 3</li>
<li class = "content x86">x86 1</li>
<li class = "content x86">x86 2</li>
<li class = "content x86 arm">x86 + arm</li>
</ul>
<div class = "content arm">arm</div>
<div class = "content arm x86">arm x86</div>
<div class = "content x86">x86</div>
</code></pre>
<h1 id="floating-figures-with-caption"><a class="header" href="#floating-figures-with-caption">Floating figures with caption</a></h1>
<p><a href="src/figure.html">Rendered html</a></p>
<pre><code class="language-html"><style>
img {
width: 100%;
height: auto;
}
figure {
width: 20%;
}
</style>
<!-- EXAMPLE 1 ---------------------------------------------------------------->
<figure style="float: left;">
<img src="grad.png">
<figcaption>Fig 1: wow such colors</figcaption>
</figure>
<p><i>
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor
incididunt ut labore et dolore magna aliqua. Nunc lobortis mattis aliquam
faucibus. A iaculis at erat pellentesque adipiscing. Dolor morbi non arcu risus
quis varius quam quisque. Fermentum odio eu feugiat pretium. Nibh nisl
condimentum id venenatis. Gravida dictum fusce ut placerat orci nulla. Pulvinar
etiam non quam lacus suspendisse faucibus interdum posuere. Pulvinar
pellentesque habitant morbi tristique senectus et netus et malesuada. Sem
fringilla ut morbi tincidunt augue interdum. Consectetur purus ut faucibus
pulvinar elementum. Dui faucibus in ornare quam. Sodales ut etiam sit amet
nisl. Nunc scelerisque viverra mauris in aliquam. Nec sagittis aliquam
malesuada bibendum arcu vitae elementum curabitur.
</i></p>
<figure style="float: right;">
<img src="grad.png">
<figcaption>Fig 2: wow such colors again</figcaption>
</figure>
<p><i>
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor
incididunt ut labore et dolore magna aliqua. Nunc lobortis mattis aliquam
faucibus. A iaculis at erat pellentesque adipiscing. Dolor morbi non arcu risus
quis varius quam quisque. Fermentum odio eu feugiat pretium. Nibh nisl
condimentum id venenatis.
</i></p>
<!-- EXAMPLE 2 ---------------------------------------------------------------->
<hr style="clear: both">
<figure style="float: left;">
<img src="grad.png">
</figure>
Floats can be next to each other on the same height.
<figure style="float: right;">
<img src="grad.png">
</figure>
<!-- EXAMPLE 3 ---------------------------------------------------------------->
<hr style="clear: both">
<figure style="float: left;">
<img src="grad.png">
</figure>
The css property <code>clear: {left, right, both};</code> controls how elements
should be handled relative to the previous floating element.
<figure style="float: right; clear: left;">
<img src="grad.png">
</figure>
<p><i>
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor
incididunt ut labore et dolore magna aliqua. Nunc lobortis mattis aliquam
faucibus. A iaculis at erat pellentesque adipiscing. Dolor morbi non arcu risus
quis varius quam quisque. Fermentum odio eu feugiat pretium. Nibh nisl
condimentum id venenatis. Gravida dictum fusce ut placerat orci nulla. Pulvinar
etiam non quam lacus suspendisse faucibus interdum posuere.
</i></p>
<!-- EXAMPLE 4 ---------------------------------------------------------------->
<hr style="clear: both">
<div style="overflow: auto; border: 2px solid red;">
<figure style="float: left;">
<img src="grad.png">
</figure>
<code>overflow: auto</code> gives an alternative to <code>clear</code> to
control placement of the floats. The red boarder visualizes the size of the
<code>&ltdiv&gt</code> block. One can remove the <code>overflow</code> property
and observe how the border changes.
</div>
<figure style="float: right;">
<img src="grad.png">
</figure>
</code></pre>
</main>
<nav class="nav-wrapper" aria-label="Page navigation">
<!-- Mobile navigation buttons -->
<a rel="prev" href="../web/index.html" class="mobile-nav-chapters previous" title="Previous chapter" aria-label="Previous chapter" aria-keyshortcuts="Left">
<i class="fa fa-angle-left"></i>
</a>
<a rel="next prefetch" href="../web/css.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
<i class="fa fa-angle-right"></i>
</a>
<div style="clear: both"></div>
</nav>
</div>
</div>
<nav class="nav-wide-wrapper" aria-label="Page navigation">
<a rel="prev" href="../web/index.html" class="nav-chapters previous" title="Previous chapter" aria-label="Previous chapter" aria-keyshortcuts="Left">
<i class="fa fa-angle-left"></i>
</a>
<a rel="next prefetch" href="../web/css.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
<i class="fa fa-angle-right"></i>
</a>
</nav>
</div>
<script>
window.playground_copyable = true;
</script>
<script src="../elasticlunr.min.js"></script>
<script src="../mark.min.js"></script>
<script src="../searcher.js"></script>
<script src="../clipboard.min.js"></script>
<script src="../highlight.js"></script>
<script src="../book.js"></script>
<!-- Custom JS scripts -->
</div>
</body>
</html>
|
