update

2 files changed, 576 insertions, 0 deletions

diff --git a/UTF-8-demo.txt b/UTF-8-demo.txt
new file mode 100644
index 0000000..ff915b2
--- /dev/null
+++ b/UTF-8-demo.txt
@@ -0,0 +1,212 @@
+
+UTF-8 encoded sample plain-text file
+‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
+
+Markus Kuhn [ˈmaʳkʊs kuːn] <http://www.cl.cam.ac.uk/~mgk25/> — 2002-07-25 CC BY
+
+
+The ASCII compatible UTF-8 encoding used in this plain-text file
+is defined in Unicode, ISO 10646-1, and RFC 2279.
+
+
+Using Unicode/UTF-8, you can write in emails and source code things such as
+
+Mathematics and sciences:
+
+  ∮ E⋅da = Q,  n → ∞, ∑ f(i) = ∏ g(i),      ⎧⎡⎛┌─────┐⎞⎤⎫
+                                            ⎪⎢⎜│a²+b³ ⎟⎥⎪
+  ∀x∈ℝ: ⌈x⌉ = −⌊−x⌋, α ∧ ¬β = ¬(¬α ∨ β),    ⎪⎢⎜│───── ⎟⎥⎪
+                                            ⎪⎢⎜⎷ c₈   ⎟⎥⎪
+  ℕ ⊆ ℕ₀ ⊂ ℤ ⊂ ℚ ⊂ ℝ ⊂ ℂ,                   ⎨⎢⎜       ⎟⎥⎬
+                                            ⎪⎢⎜ ∞     ⎟⎥⎪
+  ⊥ < a ≠ b ≡ c ≤ d ≪ ⊤ ⇒ (⟦A⟧ ⇔ ⟪B⟫),      ⎪⎢⎜ ⎲     ⎟⎥⎪
+                                            ⎪⎢⎜ ⎳aⁱ-bⁱ⎟⎥⎪
+  2H₂ + O₂ ⇌ 2H₂O, R = 4.7 kΩ, ⌀ 200 mm     ⎩⎣⎝i=1    ⎠⎦⎭
+
+Linguistics and dictionaries:
+
+  ði ıntəˈnæʃənəl fəˈnɛtık əsoʊsiˈeıʃn
+  Y [ˈʏpsilɔn], Yen [jɛn], Yoga [ˈjoːgɑ]
+
+APL:
+
+  ((V⍳V)=⍳⍴V)/V←,V    ⌷←⍳→⍴∆∇⊃‾⍎⍕⌈
+
+Nicer typography in plain text files:
+
+  ╔══════════════════════════════════════════╗
+  ║                                          ║
+  ║   • ‘single’ and “double” quotes         ║
+  ║                                          ║
+  ║   • Curly apostrophes: “We’ve been here” ║
+  ║                                          ║
+  ║   • Latin-1 apostrophe and accents: '´`  ║
+  ║                                          ║
+  ║   • ‚deutsche‘ „Anführungszeichen“       ║
+  ║                                          ║
+  ║   • †, ‡, ‰, •, 3–4, —, −5/+5, ™, …      ║
+  ║                                          ║
+  ║   • ASCII safety test: 1lI|, 0OD, 8B     ║
+  ║                      ╭─────────╮         ║
+  ║   • the euro symbol: │ 14.95 € │         ║
+  ║                      ╰─────────╯         ║
+  ╚══════════════════════════════════════════╝
+
+Combining characters:
+
+  STARGΛ̊TE SG-1, a = v̇ = r̈, a⃑ ⊥ b⃑
+
+Greek (in Polytonic):
+
+  The Greek anthem:
+
+  Σὲ γνωρίζω ἀπὸ τὴν κόψη
+  τοῦ σπαθιοῦ τὴν τρομερή,
+  σὲ γνωρίζω ἀπὸ τὴν ὄψη
+  ποὺ μὲ βία μετράει τὴ γῆ.
+
+  ᾿Απ᾿ τὰ κόκκαλα βγαλμένη
+  τῶν ῾Ελλήνων τὰ ἱερά
+  καὶ σὰν πρῶτα ἀνδρειωμένη
+  χαῖρε, ὦ χαῖρε, ᾿Ελευθεριά!
+
+  From a speech of Demosthenes in the 4th century BC:
+
+  Οὐχὶ ταὐτὰ παρίσταταί μοι γιγνώσκειν, ὦ ἄνδρες ᾿Αθηναῖοι,
+  ὅταν τ᾿ εἰς τὰ πράγματα ἀποβλέψω καὶ ὅταν πρὸς τοὺς
+  λόγους οὓς ἀκούω· τοὺς μὲν γὰρ λόγους περὶ τοῦ
+  τιμωρήσασθαι Φίλιππον ὁρῶ γιγνομένους, τὰ δὲ πράγματ᾿
+  εἰς τοῦτο προήκοντα,  ὥσθ᾿ ὅπως μὴ πεισόμεθ᾿ αὐτοὶ
+  πρότερον κακῶς σκέψασθαι δέον. οὐδέν οὖν ἄλλο μοι δοκοῦσιν
+  οἱ τὰ τοιαῦτα λέγοντες ἢ τὴν ὑπόθεσιν, περὶ ἧς βουλεύεσθαι,
+  οὐχὶ τὴν οὖσαν παριστάντες ὑμῖν ἁμαρτάνειν. ἐγὼ δέ, ὅτι μέν
+  ποτ᾿ ἐξῆν τῇ πόλει καὶ τὰ αὑτῆς ἔχειν ἀσφαλῶς καὶ Φίλιππον
+  τιμωρήσασθαι, καὶ μάλ᾿ ἀκριβῶς οἶδα· ἐπ᾿ ἐμοῦ γάρ, οὐ πάλαι
+  γέγονεν ταῦτ᾿ ἀμφότερα· νῦν μέντοι πέπεισμαι τοῦθ᾿ ἱκανὸν
+  προλαβεῖν ἡμῖν εἶναι τὴν πρώτην, ὅπως τοὺς συμμάχους
+  σώσομεν. ἐὰν γὰρ τοῦτο βεβαίως ὑπάρξῃ, τότε καὶ περὶ τοῦ
+  τίνα τιμωρήσεταί τις καὶ ὃν τρόπον ἐξέσται σκοπεῖν· πρὶν δὲ
+  τὴν ἀρχὴν ὀρθῶς ὑποθέσθαι, μάταιον ἡγοῦμαι περὶ τῆς
+  τελευτῆς ὁντινοῦν ποιεῖσθαι λόγον.
+
+  Δημοσθένους, Γ´ ᾿Ολυνθιακὸς
+
+Georgian:
+
+  From a Unicode conference invitation:
+
+  გთხოვთ ახლავე გაიაროთ რეგისტრაცია Unicode-ის მეათე საერთაშორისო
+  კონფერენციაზე დასასწრებად, რომელიც გაიმართება 10-12 მარტს,
+  ქ. მაინცში, გერმანიაში. კონფერენცია შეჰკრებს ერთად მსოფლიოს
+  ექსპერტებს ისეთ დარგებში როგორიცაა ინტერნეტი და Unicode-ი,
+  ინტერნაციონალიზაცია და ლოკალიზაცია, Unicode-ის გამოყენება
+  ოპერაციულ სისტემებსა, და გამოყენებით პროგრამებში, შრიფტებში,
+  ტექსტების დამუშავებასა და მრავალენოვან კომპიუტერულ სისტემებში.
+
+Russian:
+
+  From a Unicode conference invitation:
+
+  Зарегистрируйтесь сейчас на Десятую Международную Конференцию по
+  Unicode, которая состоится 10-12 марта 1997 года в Майнце в Германии.
+  Конференция соберет широкий круг экспертов по  вопросам глобального
+  Интернета и Unicode, локализации и интернационализации, воплощению и
+  применению Unicode в различных операционных системах и программных
+  приложениях, шрифтах, верстке и многоязычных компьютерных системах.
+
+Thai (UCS Level 2):
+
+  Excerpt from a poetry on The Romance of The Three Kingdoms (a Chinese
+  classic 'San Gua'):
+
+  [----------------------------|------------------------]
+    ๏ แผ่นดินฮั่นเสื่อมโทรมแสนสังเวช  พระปกเกศกองบู๊กู้ขึ้นใหม่
+  สิบสองกษัตริย์ก่อนหน้าแลถัดไป       สององค์ไซร้โง่เขลาเบาปัญญา
+    ทรงนับถือขันทีเป็นที่พึ่ง           บ้านเมืองจึงวิปริตเป็นนักหนา
+  โฮจิ๋นเรียกทัพทั่วหัวเมืองมา         หมายจะฆ่ามดชั่วตัวสำคัญ
+    เหมือนขับไสไล่เสือจากเคหา      รับหมาป่าเข้ามาเลยอาสัญ
+  ฝ่ายอ้องอุ้นยุแยกให้แตกกัน          ใช้สาวนั้นเป็นชนวนชื่นชวนใจ
+    พลันลิฉุยกุยกีกลับก่อเหตุ          ช่างอาเพศจริงหนาฟ้าร้องไห้
+  ต้องรบราฆ่าฟันจนบรรลัย           ฤๅหาใครค้ำชูกู้บรรลังก์ ฯ
+
+  (The above is a two-column text. If combining characters are handled
+  correctly, the lines of the second column should be aligned with the
+  | character above.)
+
+Ethiopian:
+
+  Proverbs in the Amharic language:
+
+  ሰማይ አይታረስ ንጉሥ አይከሰስ።
+  ብላ ካለኝ እንደአባቴ በቆመጠኝ።
+  ጌጥ ያለቤቱ ቁምጥና ነው።
+  ደሀ በሕልሙ ቅቤ ባይጠጣ ንጣት በገደለው።
+  የአፍ ወለምታ በቅቤ አይታሽም።
+  አይጥ በበላ ዳዋ ተመታ።
+  ሲተረጉሙ ይደረግሙ።
+  ቀስ በቀስ፥ ዕንቁላል በእግሩ ይሄዳል።
+  ድር ቢያብር አንበሳ ያስር።
+  ሰው እንደቤቱ እንጅ እንደ ጉረቤቱ አይተዳደርም።
+  እግዜር የከፈተውን ጉሮሮ ሳይዘጋው አይድርም።
+  የጎረቤት ሌባ፥ ቢያዩት ይስቅ ባያዩት ያጠልቅ።
+  ሥራ ከመፍታት ልጄን ላፋታት።
+  ዓባይ ማደሪያ የለው፥ ግንድ ይዞ ይዞራል።
+  የእስላም አገሩ መካ የአሞራ አገሩ ዋርካ።
+  ተንጋሎ ቢተፉ ተመልሶ ባፉ።
+  ወዳጅህ ማር ቢሆን ጨርስህ አትላሰው።
+  እግርህን በፍራሽህ ልክ ዘርጋ።
+
+Runes:
+
+  ᚻᛖ ᚳᚹᚫᚦ ᚦᚫᛏ ᚻᛖ ᛒᚢᛞᛖ ᚩᚾ ᚦᚫᛗ ᛚᚪᚾᛞᛖ ᚾᚩᚱᚦᚹᛖᚪᚱᛞᚢᛗ ᚹᛁᚦ ᚦᚪ ᚹᛖᛥᚫ
+
+  (Old English, which transcribed into Latin reads 'He cwaeth that he
+  bude thaem lande northweardum with tha Westsae.' and means 'He said
+  that he lived in the northern land near the Western Sea.')
+
+Braille:
+
+  ⡌⠁⠧⠑ ⠼⠁⠒  ⡍⠜⠇⠑⠹⠰⠎ ⡣⠕⠌
+
+  ⡍⠜⠇⠑⠹ ⠺⠁⠎ ⠙⠑⠁⠙⠒ ⠞⠕ ⠃⠑⠛⠔ ⠺⠊⠹⠲ ⡹⠻⠑ ⠊⠎ ⠝⠕ ⠙⠳⠃⠞
+  ⠱⠁⠞⠑⠧⠻ ⠁⠃⠳⠞ ⠹⠁⠞⠲ ⡹⠑ ⠗⠑⠛⠊⠌⠻ ⠕⠋ ⠙⠊⠎ ⠃⠥⠗⠊⠁⠇ ⠺⠁⠎
+  ⠎⠊⠛⠝⠫ ⠃⠹ ⠹⠑ ⠊⠇⠻⠛⠹⠍⠁⠝⠂ ⠹⠑ ⠊⠇⠻⠅⠂ ⠹⠑ ⠥⠝⠙⠻⠞⠁⠅⠻⠂
+  ⠁⠝⠙ ⠹⠑ ⠡⠊⠑⠋ ⠍⠳⠗⠝⠻⠲ ⡎⠊⠗⠕⠕⠛⠑ ⠎⠊⠛⠝⠫ ⠊⠞⠲ ⡁⠝⠙
+  ⡎⠊⠗⠕⠕⠛⠑⠰⠎ ⠝⠁⠍⠑ ⠺⠁⠎ ⠛⠕⠕⠙ ⠥⠏⠕⠝ ⠰⡡⠁⠝⠛⠑⠂ ⠋⠕⠗ ⠁⠝⠹⠹⠔⠛ ⠙⠑
+  ⠡⠕⠎⠑ ⠞⠕ ⠏⠥⠞ ⠙⠊⠎ ⠙⠁⠝⠙ ⠞⠕⠲
+
+  ⡕⠇⠙ ⡍⠜⠇⠑⠹ ⠺⠁⠎ ⠁⠎ ⠙⠑⠁⠙ ⠁⠎ ⠁ ⠙⠕⠕⠗⠤⠝⠁⠊⠇⠲
+
+  ⡍⠔⠙⠖ ⡊ ⠙⠕⠝⠰⠞ ⠍⠑⠁⠝ ⠞⠕ ⠎⠁⠹ ⠹⠁⠞ ⡊ ⠅⠝⠪⠂ ⠕⠋ ⠍⠹
+  ⠪⠝ ⠅⠝⠪⠇⠫⠛⠑⠂ ⠱⠁⠞ ⠹⠻⠑ ⠊⠎ ⠏⠜⠞⠊⠊⠥⠇⠜⠇⠹ ⠙⠑⠁⠙ ⠁⠃⠳⠞
+  ⠁ ⠙⠕⠕⠗⠤⠝⠁⠊⠇⠲ ⡊ ⠍⠊⠣⠞ ⠙⠁⠧⠑ ⠃⠑⠲ ⠔⠊⠇⠔⠫⠂ ⠍⠹⠎⠑⠇⠋⠂ ⠞⠕
+  ⠗⠑⠛⠜⠙ ⠁ ⠊⠕⠋⠋⠔⠤⠝⠁⠊⠇ ⠁⠎ ⠹⠑ ⠙⠑⠁⠙⠑⠌ ⠏⠊⠑⠊⠑ ⠕⠋ ⠊⠗⠕⠝⠍⠕⠝⠛⠻⠹
+  ⠔ ⠹⠑ ⠞⠗⠁⠙⠑⠲ ⡃⠥⠞ ⠹⠑ ⠺⠊⠎⠙⠕⠍ ⠕⠋ ⠳⠗ ⠁⠝⠊⠑⠌⠕⠗⠎
+  ⠊⠎ ⠔ ⠹⠑ ⠎⠊⠍⠊⠇⠑⠆ ⠁⠝⠙ ⠍⠹ ⠥⠝⠙⠁⠇⠇⠪⠫ ⠙⠁⠝⠙⠎
+  ⠩⠁⠇⠇ ⠝⠕⠞ ⠙⠊⠌⠥⠗⠃ ⠊⠞⠂ ⠕⠗ ⠹⠑ ⡊⠳⠝⠞⠗⠹⠰⠎ ⠙⠕⠝⠑ ⠋⠕⠗⠲ ⡹⠳
+  ⠺⠊⠇⠇ ⠹⠻⠑⠋⠕⠗⠑ ⠏⠻⠍⠊⠞ ⠍⠑ ⠞⠕ ⠗⠑⠏⠑⠁⠞⠂ ⠑⠍⠏⠙⠁⠞⠊⠊⠁⠇⠇⠹⠂ ⠹⠁⠞
+  ⡍⠜⠇⠑⠹ ⠺⠁⠎ ⠁⠎ ⠙⠑⠁⠙ ⠁⠎ ⠁ ⠙⠕⠕⠗⠤⠝⠁⠊⠇⠲
+
+  (The first couple of paragraphs of "A Christmas Carol" by Dickens)
+
+Compact font selection example text:
+
+  ABCDEFGHIJKLMNOPQRSTUVWXYZ /0123456789
+  abcdefghijklmnopqrstuvwxyz £©µÀÆÖÞßéöÿ
+  –—‘“”„†•…‰™œŠŸž€ ΑΒΓΔΩαβγδω АБВГДабвгд
+  ∀∂∈ℝ∧∪≡∞ ↑↗↨↻⇣ ┐┼╔╘░►☺♀ fi�⑀₂ἠḂӥẄɐː⍎אԱა
+
+Greetings in various languages:
+
+  Hello world, Καλημέρα κόσμε, コンニチハ
+
+Box drawing alignment tests:                                          █
+                                                                      ▉
+  ╔══╦══╗  ┌──┬──┐  ╭──┬──╮  ╭──┬──╮  ┏━━┳━━┓  ┎┒┏┑   ╷  ╻ ┏┯┓ ┌┰┐    ▊ ╱╲╱╲╳╳╳
+  ║┌─╨─┐║  │╔═╧═╗│  │╒═╪═╕│  │╓─╁─╖│  ┃┌─╂─┐┃  ┗╃╄┙  ╶┼╴╺╋╸┠┼┨ ┝╋┥    ▋ ╲╱╲╱╳╳╳
+  ║│╲ ╱│║  │║   ║│  ││ │ ││  │║ ┃ ║│  ┃│ ╿ │┃  ┍╅╆┓   ╵  ╹ ┗┷┛ └┸┘    ▌ ╱╲╱╲╳╳╳
+  ╠╡ ╳ ╞╣  ├╢   ╟┤  ├┼─┼─┼┤  ├╫─╂─╫┤  ┣┿╾┼╼┿┫  ┕┛┖┚     ┌┄┄┐ ╎ ┏┅┅┓ ┋ ▍ ╲╱╲╱╳╳╳
+  ║│╱ ╲│║  │║   ║│  ││ │ ││  │║ ┃ ║│  ┃│ ╽ │┃  ░░▒▒▓▓██ ┊  ┆ ╎ ╏  ┇ ┋ ▎
+  ║└─╥─┘║  │╚═╤═╝│  │╘═╪═╛│  │╙─╀─╜│  ┃└─╂─┘┃  ░░▒▒▓▓██ ┊  ┆ ╎ ╏  ┇ ┋ ▏
+  ╚══╩══╝  └──┴──┘  ╰──┴──╯  ╰──┴──╯  ┗━━┻━━┛  ▗▄▖▛▀▜   └╌╌┘ ╎ ┗╍╍┛ ┋  ▁▂▃▄▅▆▇█
+                                               ▝▀▘▙▄▟
diff --git a/boxes.txt b/boxes.txt
new file mode 100644
index 0000000..95ec46d
--- /dev/null
+++ b/boxes.txt
@@ -0,0 +1,364 @@
+Single width, hollow.
+┌─┐	)0lqk
+│ │	)0x x
+└─┘	)0mqj
+┌─┐
+│ │
+└─┘
+
+Single width, single fill.
+┌┬┐	)0lwk
+├┼┤	)0tnu
+└┴┘	)0mvj
+┌┬┐
+├┼┤
+└┴┘
+
+Double width, hollow.
+┏━┓	)0   
+┃ ┃	)0   
+┗━┛	)0   
+╔═╗
+║ ║
+╚═╝
+
+Double width, double fill.
+┏┳┓	)0   
+┣╋┫	)0   
+┗┻┛	)0   
+╔╦╗
+╠╬╣
+╚╩╝
+
+Double width, single fill.
+┏┯┓	)0   
+┠┼┨	)0 n 
+┗┷┛	)0   
+╔╤╗
+╟┼╢
+╚╧╝
+
+Single width, double fill.
+┌┰┐	)0l k
+┝╋┥	)0   
+└┸┘	)0m j
+┌╥┐
+╞╬╡
+└╨┘
+
+Single width, mixed fill (double horizontal, single vertical).
+┌┬┐	)0lwk
+┝┿┥	)0   
+└┴┘	)0mvj
+┌┬┐
+╞╪╡
+└┴┘
+
+Double width, mixed fill (double vertical, single horizontal).
+┏┳┓	)0   
+┠╂┨	)0   
+┗┻┛	)0   
+╔╦╗
+╟╫╢
+╚╩╝
+
+Double horizontal, single vertical.
+┍┑
+┕┙
+╒╕ 
+╘╛ 
+
+Double vertical, single horizontal.
+┎┒
+┖┚
+╓╖ 
+╙╜ 
+
+Single width, double, triple and quadruple dash.
+┌╌╌┐  ┌┄┄┐  ┌┈┈┐
+╎  ╎  ┆  ┆  ┊  ┊
+╎  ╎  ┆  ┆  ┊  ┊
+└╌╌┘  └┄┄┘  └┈┈┘
+
+Double width, double, triple and quadruple dash.
+┏╍╍┓  ┏┅┅┓  ┏┉┉┓
+╏  ╏  ┇  ┇  ┋  ┋
+╏  ╏  ┇  ┇  ┋  ┋
+┗╍╍┛  ┗┅┅┛  ┗┉┉┛
+
+One single, two double lines meet.
+┢┪ ┲┱
+┡┩ ┺┹
+
+One double, two single lines meet.
+┞┦ ┭┮
+┟┧ ┵┶
+
+One single, three double lines meet.
+╇ ╉╊
+╈
+
+One double, three single lines meet.
+╁ ┾┽
+╀
+
+Two double, two single lines meet.
+╆╅
+╄╃
+
+Mixed width, starting, ending and changing width mid-character.
+╷ ╻ ╶╼╸
+╽ ╿ ╺╾╴
+╹ ╵
+
+Single line with vertical lines crossing
+ ║ ┃ │ │ │ ┃ ║
+─╫─╂─┼─🮯─┼─╂─╫─
+ ║ ┃ │ │ │ ┃ ║
+
+Rounded.
+╭─╮
+│ │
+╰─╯
+
+Diagonals.
+╲     ╱ ╲     ╱          ╳     ╳          ╲ ╱ ╲ ╱ ╲ ╱     🯚 🯚 🯚 🯚 🯚    🯚🯚🯚🯚🯚🯚🯚
+ ╲   ╱   ╲   ╱      ╲   ╱ ╲   ╱ ╲   ╱      ╳   ╳   ╳     🯙 ╳ ╳ ╳ ╳ 🯛  🯙╳╳╳╳╳╳╳🯛
+  ╲ ╱     ╲ ╱        ╲ ╱   ╲ ╱   ╲ ╱      ╱ ╲ ╱ ╲ ╱ ╲     ╳ ╳ ╳ ╳ ╳   🯙╳╳╳╳╳╳╳🯛
+   ╳       ╳          ╳     ╳     ╳      ╳   ╳   ╳   ╳   🯙 ╳ ╳ ╳ ╳ 🯛  🯙╳╳╳╳╳╳╳🯛
+  ╱ ╲     ╱ ╲        ╱ ╲   ╱ ╲   ╱ ╲      ╲ ╱ ╲ ╱ ╲ ╱     ╳ ╳ ╳ ╳ ╳   🯙╳╳╳╳╳╳╳🯛
+ ╱   ╲   ╱   ╲      ╱   ╲ ╱   ╲ ╱   ╲      ╳   ╳   ╳     🯙 ╳ ╳ ╳ ╳ 🯛  🯙╳╳╳╳╳╳╳🯛
+╱     ╲ ╱     ╲          ╳     ╳          ╱ ╲ ╱ ╲ ╱ ╲     🯘 🯘 🯘 🯘 🯘    🯘🯘🯘🯘🯘🯘🯘
+
+╲    ╱ ╲    ╱           ╱╲    ╱╲         ╱╲  ╱╲  ╱╲       ╲╱╲╱╲╱╲╱    ╲ ╱╲ ╱╲ ╱ 
+ ╲  ╱   ╲  ╱        ╲  ╱  ╲  ╱  ╲  ╱       ╲╱  ╲╱  ╲╱     ╱╲╱╲╱╲╱╲     🯘  🯘  🯘 
+  ╲╱     ╲╱          ╲╱    ╲╱    ╲╱        ╱╲  ╱╲  ╱╲     ╲╱╲╱╲╱╲╱
+  ╱╲     ╱╲          ╱╲    ╱╲    ╱╲      ╲╱  ╲╱  ╲╱       ╱╲╱╲╱╲╱╲     🯚  🯚  🯚
+ ╱  ╲   ╱  ╲        ╱  ╲  ╱  ╲  ╱  ╲     ╱╲  ╱╲  ╱╲       ╲╱╲╱╲╱╲╱    ╱ ╲╱ ╲╱ ╲
+╱    ╲ ╱    ╲           ╲╱    ╲╱           ╲╱  ╲╱  ╲╱     ╱╲╱╲╱╲╱╲
+
+          🮢 🮣🮢 🮣🮢 🮣🮢 🮣  🮣🮬🮬🮬🮬🮮🮭🮭🮭🮭🮢   𜰟𜰟𜰟𜰟𜰟   𜰠𜰠𜰠𜰠𜰠   𜰟𜰠𜰟𜰠𜰟𜰠𜰟𜰠𜰟𜰠  
+🮢🮣🮢🮣🮢🮣🮢🮣  🮡🮦🮠🮡🮦🮠🮡🮦🮠🮡🮦🮠  🮣🮨🮨🮨🮨🮮🮩🮩🮩🮩🮢   𜰟𜰟𜰟𜰟𜰟   𜰠𜰠𜰠𜰠𜰠   𜰠𜰟𜰠𜰟𜰠𜰟𜰠𜰟𜰠𜰟
+🮥🮤🮥🮤🮥🮤🮥🮤  🮣🮧🮢🮣🮧🮢🮣🮧🮢🮣🮧🮢  🮣🮨🮨🮨🮨🮮🮩🮩🮩🮩🮢   𜰟𜰟𜰟𜰟𜰟   𜰠𜰠𜰠𜰠𜰠   𜰟𜰠𜰟𜰠𜰟𜰠𜰟𜰠𜰟𜰠
+🮠🮡🮠🮡🮠🮡🮠🮡  🮠 🮡🮠 🮡🮠 🮡🮠 🮡  🮣🮫🮫🮫🮫🮮🮪🮪🮪🮪🮢   𜰟𜰟𜰟𜰟𜰟   𜰠𜰠𜰠𜰠𜰠   𜰠𜰟𜰠𜰟𜰠𜰟𜰠𜰟𜰠𜰟
+
+🯒🯓  🯐🯑🯒🯓  🯐🯑 🯒🯓🯐🯑🯒🯓🯐🯑🯒🯓🯐🯑 🯟🯝🯟🯝🯟🯝🯟🯝 🯝🯝🯝🯝 🯟🯟🯟🯟 🯔 🯖🯔 🯖🯔 🯖 🯜🯜🯜🯜 🯐🯐🯐🯐🯐🯐🯐 🯔🯔🯔🯔🯔🯔🯔
+  🯟🯝    🯟🯝   🯐🯑🯒🯓🯐🯑🯒🯓🯐🯑🯒🯓 🯟🯝🯟🯝🯟🯝🯟🯝 🯝🯝🯝🯝 🯟🯟🯟🯟 🯕 🯗🯕 🯗🯕 🯗 🯞🯞🯞🯞 🯑🯑🯑🯑🯑🯑🯑 🯕🯕🯕🯕🯕🯕🯕
+🯐🯑  🯒🯓🯐🯑  🯒🯓 🯒🯓🯐🯑🯒🯓🯐🯑🯒🯓🯐🯑 🯟🯝🯟🯝🯟🯝🯟🯝 🯝🯝🯝🯝 🯟🯟🯟🯟  🯜  🯜  🯜  🯜🯜🯜🯜 🯓🯓🯓🯓🯓🯓🯓
+             🯐🯑🯒🯓🯐🯑🯒🯓🯐🯑🯒🯓 🯟🯝🯟🯝🯟🯝🯟🯝 🯝🯝🯝🯝 🯟🯟🯟🯟  🯞  🯞  🯞  🯞🯞🯞🯞 🯒🯒🯒🯒🯒🯒🯒 🯖🯖🯖🯖🯖🯖🯖
+                                             🯖 🯔🯖 🯔🯖 🯔              🯗🯗🯗🯗🯗🯗🯗
+                                             🯗 🯕🯗 🯕🯗 🯕
+
+𜸉𜸉𜸉𜸉  𜸊𜸊𜸊𜸊  𜸉𜸊𜸉𜸊  𜸉𜸊𜸉𜸊𜸉
+𜸉𜸉𜸉𜸉  𜸊𜸊𜸊𜸊  𜸉𜸊𜸉𜸊  𜸊𜸉𜸊𜸉𜸊
+𜸉𜸉𜸉𜸉  𜸊𜸊𜸊𜸊  𜸉𜸊𜸉𜸊  𜸉𜸊𜸉𜸊𜸉
+𜸉𜸉𜸉𜸉  𜸊𜸊𜸊𜸊  𜸉𜸊𜸉𜸊  𜸊𜸉𜸊𜸉𜸊
+
+Block elements.
+
+█▏
+▏▏
+█▏ 🭽▔🭶🭷🭸🭹🭺🭻▁🮀🮁🮀▁🭻🭺🭹🭸🭷🭶▔🭾
+🮋▎ ▏                   ▕
+🭰🭰 🭰                   🭵
+🮋▎ 🭱   ▐     ▌ ▛▀#▀▜   🭴
+🮊▍ 🭲  ▄▞▀ ▗▄▀▘ ▌▗▄▖▐   🭳
+🭱🭱 🭳   ▌  ▐    #▐#▌#   🭲
+🮊▍ 🭴  ▀▚▄ ▝▀▄▖ ▌▝▀▘▐   🭱
+🮉▌ 🭵   ▐     ▌ ▙▄#▄▟   🭰
+🭲🭲 ▕                   ▏
+🮉▌ ▕   ▁▂▃▄▅▆▇█ ▖# ▗#  ▏
+▐▋ ▕  ▕       ▉ ▌# ▐#  ▏
+🭳🭳 ▕  🮇       ▊ ▐# ▌#  ▏
+▐▋ ▕  🮈 ░     ▋ ▝# ▘#  ▏
+🮈▊ 🭵  ▐ ▒░    ▌        🭰
+🭴🭴 🭴  🮉 ▓▒░   ▍ ▌# ▐#  🭱
+🮈▊ 🭳  🮊 █▓▒░  ▎ ▚# ▞#  🭲
+🮇▉ 🭲  🮋       ▏ ▐# ▌#  🭳
+🭵🭵 🭱  █🮆🮅🮄▀🮃🮂▔         🭴
+🮇▉ 🭰                   🭵
+▕█ ▏                   ▕
+▕▕ 🭼▁🭻🭺🭹🭸🭷🭶▔🮀🮁🮀▔🭶🭷🭸🭹🭺🭻▁🭿
+▕█
+  █▔█▇🭶▇▆🭷▆▅🭸▅▄🭹▄▃🭺▃▂🭻▂▁▁▁
+  ▔▔▔🮂🭶🮂🮃🭷🮃▀🭸▀🮄🭹🮄🮅🭺🮅🮆🭻🮆█▁█
+
+Shades.
+                                ████████████████████████████████
+     ░░░░░     ▒▒▒▒▒     ▓▓▓▓▓  ██▓▓▓▓▓█████▒▒▒▒▒█████░░░░░█████
+  ░  ░░░░░  ▒  ▒▒▒▒▒  ▓  ▓▓▓▓▓  ██▓▓▓▓▓██▓██▒▒▒▒▒██▒██░░░░░██░██
+     ░░░░░     ▒▒▒▒▒     ▓▓▓▓▓  ██▓▓▓▓▓█████▒▒▒▒▒█████░░░░░█████
+                                ████████████████████████████████
+
+Hatchings, Checkerboards and Fills
+
+🮘🮘🮘🮘  🮙🮙🮙🮙  🮘🮙🮘🮙      🮕🮕🮕🮕  🮖🮖🮖🮖  🮕🮖🮕🮖      🮗🮗🮗🮗
+🮘🮘🮘🮘  🮙🮙🮙🮙  🮙🮘🮙🮘      🮕🮕🮕🮕  🮖🮖🮖🮖  🮖🮕🮖🮕      🮗🮗🮗🮗
+🮘🮘🮘🮘  🮙🮙🮙🮙  🮘🮙🮘🮙      🮕🮕🮕🮕  🮖🮖🮖🮖  🮕🮖🮕🮖      🮗🮗🮗🮗
+🮘🮘🮘🮘  🮙🮙🮙🮙  🮙🮘🮙🮘      🮕🮕🮕🮕  🮖🮖🮖🮖  🮖🮕🮖🮕      🮗🮗🮗🮗
+
+
+𜱀𜱀𜱀𜱀  𜱁𜱁𜱁𜱁  𜱂𜱂𜱂𜱂  𜱃𜱃𜱃𜱃  𜱄𜱄𜱄𜱄  𜱅𜱅𜱅𜱅  𜱆𜱆𜱆𜱆 𜱇𜱇𜱇𜱇
+𜱀𜱀𜱀𜱀  𜱁𜱁𜱁𜱁  𜱂𜱂𜱂𜱂  𜱃𜱃𜱃𜱃  𜱄𜱄𜱄𜱄  𜱅𜱅𜱅𜱅  𜱆𜱆𜱆𜱆 𜱇𜱇𜱇𜱇
+𜱀𜱀𜱀𜱀  𜱁𜱁𜱁𜱁  𜱂𜱂𜱂𜱂  𜱃𜱃𜱃𜱃  𜱄𜱄𜱄𜱄  𜱅𜱅𜱅𜱅  𜱆𜱆𜱆𜱆 𜱇𜱇𜱇𜱇
+𜱀𜱀𜱀𜱀  𜱁𜱁𜱁𜱁  𜱂𜱂𜱂𜱂  𜱃𜱃𜱃𜱃  𜱄𜱄𜱄𜱄  𜱅𜱅𜱅𜱅  𜱆𜱆𜱆𜱆 𜱇𜱇𜱇𜱇
+
+Boxes:
+
+🬇🬋🬃 🬦🬹🬓 🬞🬭🬏 🬠🬰🬐 🬁🬂🬀 🬉🬎🬄 🬇🬋🬃
+
+🬭🬞🬏 🬹🬦🬓
+█▐▌ █▐▌
+🬂🬁🬀 🬎🬉🬄
+
+                        🬭🬭🬭
+🬭🬭🬭 🬚🬋🬩 🬕🬂🬨 🬹🬹🬹 🬝🬎🬬 🬴🬰🬸 🬛🬋🬫
+▌ ▐ ▌ ▐ ▌ ▐ ▌ ▐ ▌ ▐ ▌ ▐ ▌ ▐
+🬂🬂🬂 🬌🬋🬍 🬲🬭🬷 🬎🬎🬎 🬺🬹🬻 🬴🬰🬸 🬛🬋🬫
+                        🬂🬂🬂
+
+                        🬞🬭🬏
+🬞🬭🬏 🬦🬋🬓 ▐🬂▌ 🬦🬹🬓 ▐🬎▌ ▐🬰▌ ▐🬋▌
+▐ ▌ ▐ ▌ ▐ ▌ ▐ ▌ ▐ ▌ ▐ ▌ ▐ ▌
+🬁🬂🬀 🬉🬋🬄 ▐🬭▌ 🬉🬎🬄 ▐🬹▌ ▐🬰▌ ▐🬋▌
+                        🬁🬂🬀
+
+     🬞  🬏
+🬖🬏🬇🬗 🬈🬀🬁🬅 🬤🬃🬞🬢
+🬠 🬞🬢 🬔🬓🬦🬧 🬖🬏 🬐
+🬣🬄🬁🬅 🬁  🬀 🬈🬀🬉🬘
+
+
+🬥 🬙  🬆 🬊  🬒 🬡  🬑 🬟
+🬇 🬃  🬐 🬠  🬃 🬇  🬃 🬇
+🬳 🬶  🬱 🬵  🬮 🬯  🬟 🬑
+
+
+  🬞🬻🬺🬏     🬞🬜🬪🬏     🬞🬅🬈🬏
+ 🬵🬝🬀🬁🬬🬱   🬵🬆  🬊🬱   🬖🬀  🬁🬢
+🬻🬆    🬊🬺 🬜🬀    🬁🬪 🬔      🬧
+🬬🬱    🬵🬝 🬪🬏    🬞🬜 🬣      🬘
+ 🬊🬺🬏🬞🬻🬆   🬊🬱  🬵🬆   🬈🬏  🬞🬅
+  🬁🬬🬝🬀     🬁🬪🬜🬀     🬁🬢🬖🬀
+
+
+Slope 1/3.
+🭈🭆🭂🭍🭑🬽   🭈🬭🭆🬹🭂█🭍🬹🭑🬭🬽
+🭣🭧🭓🭞🭜🭘   █#########█
+         🭣🬂🭧🬎🭓█🭞🬎🭜🬂🭘
+
+Slope 2/3.
+      🭇🬼               🬞🬏
+🭇🭄🭏🬼 🭊🭁🭌🬿    🭇🬭🭄█🭏🬭🬼 🭊🬹🭁🭌🬹🬿
+🭢🭕🭠🭗 🭥🭒🭝🭚    ▐#####▌ █####█
+      🭢🭗     🭢🬂🭕█🭠🬂🭗 🭥🬎🭒🭝🬎🭚
+                       🬁🬀
+Slope 1.
+◢◣ 🮞🮟
+◥◤ 🮝🮜
+
+
+Slope 4/3.
+     🭉🬹🬾
+🭉🬾   ▐#▌
+🭃🭎  🬞🭃#🭎🬏
+🭔🭟  🬁🭔#🭟🬀
+🭤🭙   ▐#▌
+     🭤🬎🭙
+
+Slope 2.
+     🭋█🭀
+🭋🭀   ▐#▌
+🭅🭐   🭅#🭐
+🭖🭡   🭖#🭡
+🭦🭛   ▐#▌
+     🭦█🭛
+
+
+Diagonal quarters.
+         🭯       🭯       🭯       🭯
+  🭯      🭫      🭮🭫🭬     🮞🭫🮟     ◢🭫◣       🭯🭯🭯🭯
+  🭫            🭯   🭯   🮞🮜 🮝🮟   ◢◤ ◥◣  🭮🮛🮛🭬🮚🮚🮚🮚
+🭮🭪 🭨🭬 🭮🭪   🭨🭬 🭮🭪   🭨🭬 🭮🭪   🭨🭬 🭮🭪   🭨🭬 🭮🮛🮛🭬🮚🮚🮚🮚
+  🭩            🭭   🭭   🮝🮟 🮞🮜   ◥◣ ◢◤  🭮🮛🮛🭬🮚🮚🮚🮚
+  🭭      🭩      🭮🭩🭬     🮝🭩🮜     ◥🭩◤       🭭🭭🭭🭭
+         🭭       🭭       🭭       🭭
+
+            🭯 🭯 🭯
+ ◢◣◢◣◢◣    ◢🭫🭩🭫🭩🭫◣    ◢🭩🭩🭩◣     🭯🭯🭯
+◢◤◥◤◥◤◥◣  🭮🭪 🭭 🭭 🭨🭬  ◢◤🭭🭭🭭◥◣   ◢🭫🭫🭫◣
+◥◣    ◢◤   🭨🭬   🭮🭪   🭨🭬   🭮🭪  🭮🭪   🭨🭬
+◢◤    ◥◣  🭮🭪     🭨🭬  🭨🭬   🭮🭪  🭮🭪   🭨🭬
+◥◣    ◢◤   🭨🭬   🭮🭪   🭨🭬   🭮🭪  🭮🭪   🭨🭬
+◢◤    ◥◣  🭮🭪 🭯 🭯 🭨🭬  ◥◣🭯🭯🭯◢◤   ◥🭩🭩🭩◤
+◥◣◢◣◢◣◢◤   ◥🭩🭫🭩🭫🭩◤    ◥🭫🭫🭫◤     🭭🭭🭭
+ ◥◤◥◤◥◤     🭭 🭭 🭭
+
+ 🮞◣🮞◣🮞◣    ◢🮟◢🮟◢🮟    ╱🮟╱🮟╱🮟    🮞╲🮞╲🮞╲
+🮞🮜◥🮜◥🮜◥◣  ◢◤🮝◤🮝◤🮝🮟  ╱╱🮝╱🮝╱🮝🮟  🮞🮜╲🮜╲🮜╲╲
+◥◣    🮞🮜  🮝🮟    ◢◤  🮝🮟    ╱╱  ╲╲    🮞🮜
+🮞🮜    ◥◣  ◢◤    🮝🮟  ╱╱    🮝🮟  🮞🮜    ╲╲
+◥◣    🮞🮜  🮝🮟    ◢◤  🮝🮟    ╱╱  ╲╲    🮞🮜
+🮞🮜    ◥◣  ◢◤    🮝🮟  ╱╱    🮝🮟  🮞🮜    ╲╲
+◥◣🮞◣🮞◣🮞🮜  🮝🮟◢🮟◢🮟◢◤  🮝🮟╱🮟╱🮟╱╱  ╲╲🮞╲🮞╲🮞🮜
+ ◥🮜◥🮜◥🮜    🮝◤🮝◤🮝◤    🮝╱🮝╱🮝╱    ╲🮜╲🮜╲🮜
+
+ ╱◣╱◣╱◣    ◢╲◢╲◢╲    ╱╲╱╲╱╲    🮣🮧🮧🮧🮧🮢
+╱╱◥╱◥╱◥◣  ◢◤╲◤╲◤╲╲  ╱╱╲╱╲╱╲╲  🮣🮨🮧🮧🮧🮧🮩🮢
+◥◣    ╱╱  ╲╲    ◢◤  ╲╲    ╱╱  🮤🮤    🮥🮥
+╱╱    ◥◣  ◢◤    ╲╲  ╱╱    ╲╲  🮤🮤    🮥🮥
+◥◣    ╱╱  ╲╲    ◢◤  ╲╲    ╱╱  🮤🮤    🮥🮥
+╱╱    ◥◣  ◢◤    ╲╲  ╱╱    ╲╲  🮤🮤    🮥🮥
+◥◣╱◣╱◣╱╱  ╲╲◢╲◢╲◢◤  ╲╲╱╲╱╲╱╱  🮡🮩🮦🮦🮦🮦🮨🮠
+ ◥╱◥╱◥╱    ╲◤╲◤╲◤    ╲╱╲╱╲╱    🮡🮦🮦🮦🮦🮠
+
+          ╷ ╷    🮣─🮢   🮣─🮦─🮢
+🮣─🮢  ┌🮧┐ ╶🮭─🮬╴   │ │   │ │ │
+│ │  🮤 🮥  │ │  🮣─🮨─🮩─🮢 🮥─🮮─🮤
+🮡─🮠  └🮦┘ ╶🮫─🮪╴ │ │ │ │ │ │ │
+          ╵ ╵  🮡─🮠 🮡─🮠 🮡─🮧─🮠
+
+  ▗🮒█🮒▖
+ ▗▘   ▝▖
+ 🮔  🮏
+ █ 🮍▒🮌
+ 🮔  🮎
+ ▝▖   ▗▘
+  ▝🮑█🮑▘
+
+
+        ½
+        🬤🬤🬤🬤⅓█ █ 🬗🬗🬗🬗
+        🬗🬗🬗🬗█ █ █🬤🬤🬤🬤
+        🬤🬤🬤🬤 █ █ 🬗🬗🬗🬗
+    ¼   🬗🬗🬗🬗█ █ █🬤🬤🬤🬤
+▒▒▒▒🮖🮖🮖🮖▞▞▞▞½█ █ ▚▚▚▚🮕🮕🮕🮕🮐🮐🮐🮐   ▎ 🮇   ▎ 🮇
+▒▒▒▒🮖🮖🮖🮖▞▞▞▞█ █ █▚▚▚▚🮕🮕🮕🮕🮐🮐🮐🮐  🮂🮕🮗🮖🮂 🮂🮖🮗🮕🮂
+▒▒▒▒🮖🮖🮖🮖▞▞▞▞ █ █ ▚▚▚▚🮕🮕🮕🮕🮐🮐🮐🮐  ▂🮕🮗🮖▂ ▂🮖🮗🮕▂
+▒▒▒▒🮖🮖🮖🮖▞▞▞▞█ █ █▚▚▚▚🮕🮕🮕🮕🮐🮐🮐🮐   ▎ 🮇   ▎ 🮇
+        🬘🬘🬘🬘⅔█ █ 🬣🬣🬣🬣
+        🬧🬧🬧🬧█ █ █🬔🬔🬔🬔
+        🬣🬣🬣🬣 █ █ 🬘🬘🬘🬘
+        🬔🬔🬔🬔█ █ █🬧🬧🬧🬧
+
+ 🮣🮢  🮣🮢     🮣🮢🮣🮢
+🮣🮠🮡🮢🮣🮨🮩🮢 🮭🮬 🮡🮩🮨🮠  🮨🮨🮨🮩🮩🮩 🮭🮭🮭🮬🮬🮬 🮮🮮🮮🮮🮮🮮
+🮡🮢🮣🮠🮡🮩🮨🮠 🮫🮪 🮣🮨🮩🮢  🮨🮨🮨🮩🮩🮩 🮭🮭🮭🮬🮬🮬 🮮🮮🮮🮮🮮🮮
+ 🮡🮠  🮡🮠     🮡🮠🮡🮠  🮨🮨🮨🮩🮩🮩 🮭🮭🮭🮬🮬🮬 🮮🮮🮮🮮🮮🮮
+ 🮣🮧🮢 🮣🮧🮢 🮣🮦🮢 🮭🮦🮬  🮩🮩🮩🮨🮨🮨 🮫🮫🮫🮪🮪🮪 🮮🮮🮮🮮🮮🮮
+ 🮤 🮥 🮤🮮🮥 🮥 🮤 🮥 🮤  🮩🮩🮩🮨🮨🮨 🮫🮫🮫🮪🮪🮪 🮮🮮🮮🮮🮮🮮
+ 🮡🮦🮠 🮡🮦🮠 🮡🮧🮠 🮫🮧🮪  🮩🮩🮩🮨🮨🮨 🮫🮫🮫🮪🮪🮪 🮮🮮🮮🮮🮮🮮
+
+◤◤◤◥◥◥ 🮜🮜🮜🮝🮝🮝
+◤◤◤◥◥◥ 🮜🮜🮜🮝🮝🮝
+◤◤◤◥◥◥ 🮜🮜🮜🮝🮝🮝
+◣◣◣◢◢◢ 🮟🮟🮟🮞🮞🮞
+◣◣◣◢◢◢ 🮟🮟🮟🮞🮞🮞
+◣◣◣◢◢◢ 🮟🮟🮟🮞🮞🮞
+
+References:
+VT-102:  http://vt100.net/docs/vt102-ug/table5-13.html
+Unicode: http://www.unicode.org/charts/PDF/U2500.pdf
+         http://www.unicode.org/charts/PDF/U2580.pdf
+         http://www.unicode.org/charts/PDF/U25A0.pdf
+         http://www.unicode.org/charts/PDF/U1FB00.pdf