Tag Archives: functional programming

 

My Terminal Trading Chart is live!

2026-06-10
Terminal Trading Chart in action with ROKU stock 2026-06-13

Finally my 2016 open source project Terminal Trading Chart is live!
…I never thought I’d write those words.

Back in 2016, I started a small experiment:
What if I could visualize buying and selling pressure directly inside a terminal, using nothing but Unicode and ANSI colors?

The idea was simple:

  • Green on top = buying volume
  • Red on bottom = selling volume
  • Thicker glyphs = higher volume
    Using only three glyphs: U+2502, U+2503 and U+2588

But life got in the way. The project stayed in a drawer. Unfinished.

Until now.

Thanks to Claude and DeepSeek AI, I was able to finally bring this vision to life. With their help, the code is clean, the logic is solid, and, most importantly, the signals are readable at a single glance.

Today, I’m releasing Terminal Trading Chart as open source.
I never expected to feel emotional about a terminal chart. But seeing those green and red columns light up with real volume data… yes, it moved me.
I’m curious: does it move you too?

GitHub: Terminal Trading Chart
⭐ Star it if you believe in minimalistic, signal-focused tools.

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PragmataPro and PragmataPro Variable 0.901 out now!

2025-08-20

This minor update contains numerous fixes and a handful of improvements:

— New Markdown ligatures design

PragmataPro 0.901 new Markdown ligatures

Now the ballot boxes are more geometric and wider in the modular-spaced versions of PragmataPro.
This solution fixes some overlapping issues in Terminal applications.

— Looking for a text-only loading animation?

Loading circled animation based on PragmataPro text only

New design of arc glyphs ◜ ◠ ◝ ◞ ◡ ◟
Now more consistent with the related circle symbol

— Other changes:

— all weights: added Math glyphs with the same weight of the Latin letters activable, enabling ss19 Stylistic Set 19 feature.

— all weights: improved TrueType hinting of some digits, $ symbol and == === ligatures.

— all weights Mono: added missing Powerline symbols.

— all weights Mono: added new stars Dingbats.

— all weights: added <--- <---> ---> ligatures.

— all weights: — emdash and – endash are now monospaced in modular-spaced versions.

Feel free to contact me directly or notify an issue via Github to improve PragmataPro and PragmataPro Variable again and again.
Thank you!

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Pragmata Pro 0.830 out now!

2023-12-14

Starting today, PragmataPro has an even more comfortable readability!

PragmataPro 0.830 out now! Starting today, PragmataPro has an even more comfortable readability. Wider glyphs and less space between glyphs.PragmataPro 0.830 coding demo

Try to believe!

Other changes:

— all weights: added and updated the Nerd font icons
for the first time was added to Mono versions

— all weights: added notabene ligature available at codepoint 100010

— all weights: added Battery symbols at the codepoints EE00-EE05

— all weights: all the ligatures and Nesteruk glyphs for diagrams are moved to Unicode set 100000-10FFF0

— all weights: fixed the ⟜⊸○∘--- alignment

— Regular: fixed ≤ (U+2264) and ⪇ (U+2A87) alignment

— all weights: improved some APL symbols design

— all weights: disabled ^^ -> ∀ ligature and Git Tree glyphs as default
Git Tree glyphs are activable using OpenType Feature ss13

 

Feel free to contact me directly or notify an issue via Github to improve PragmataPro again and again.
Thank you!

3 comments
 

PragmataPro 0.829: Curly Git tree and new essential glyphs

2021-05-14

This version coming from my experience as web developer.
Often I exchanged colon (:) with semicolon (;) and sometime I had the suspect that L lowercase can be more distinguished using a new design. After this redesign I can work now more sure to avoid misinterpretations.

Redesign dollar l colon eszett in PragmataPro 0.829

— Curly slash and backslash in Git tree command line

It’s possible to enable it using Pragmata Pro™ with OpenType Stylistic Set 13 named ‘git tree’.
Every slash and backslash, at specific conditions, will appears with curly terminations even with Italic versions.
From now coders can see a more nice Git tree in their command line editor

PragmataPro command line git tree

— Extended the range of ligatures

Ligatures helps a lot the programmers. Now the help is increased!

PragmataPro 0829 ligatures

— Added Bulgarian and Serbian language support

Cyrillic set now includes also Bulgarian and Serbian characters

— Other improvements:

— Regular: Soft dotted improved and Mathematical Alphanumeric Symbols glyphs can be accented
like other standard letters using Combining Diacritical Marks set

— Regular: improved the design of APL glyphs

— Regular: improved the design of Mathematical Operators

— Regular: BQN programming glyphs like
˜˘•÷׬⎉⚇⍟◶⊘⎊⍎⍕⟨⟩√⋆⌽∊↑∧⊔⊏⊐π←↙⍷⍋⊑⊒⍳⊣⊢⍉↕⊸∘○⟜⋄↩↖⌾⥊↓∨⌊⍒⌈≢≤≥⇐… are improved by design

— Regular: added curly arrows ︎↖︎↗ ↙↘︎ ↘︎↙ ↗↖︎ ligature coming from ↘︎ ↖︎ ↗ ↙ diagonal arrows combinations

— Regular: Geometric Shapes set are more distinguished at small sizes

— Regular: added Combining Diacritical Marks Extended and Combining Diacritical Marks Supplemental set

— all weights: checkmarks appears by default from now, no more from Stylistic Set ss12

— all weights: added Creative Commons glyphs and harmonized © copyright sign also

— all weights: added Hellschreiber pause symbol

— all weights: improved design and positioning of Graphics for Legacy Computing symbols

Feel free to contact me directly or notify an issue via Github to improve PragmataPro again and again.
Thank you!

70 comments
 

PragmataPro 0.828: Runes, Teletext graphics and all the HTML5 entities!

2019-08-02
PragmataPro HTML5 Entity compared with other fonts

— All the 2109 HTML 5 entities are included in this version

From now your web page can supports HTML5 entities without worries with Pragmata Pro because it’s one of the rarest fonts that can do this.

HTML5 requires also some weird combined characters hard to find.

All the 2109 HTML5 entities was designed and available since PragmataPro 0.828

Click here to see the entire HTML 5 list set in PragmataPro™

— Comodore 64 nostalgia?

Sample of PragmataPro Graphic for Legacy Computing coming from Teletext, Atari and Comodore64

Pragmata Pro™ is the first monospaced typeface offering ‘Graphic for Legacy Computing’ Unicode set. All these glyphs coming from Teletext, Atari and Comodore 64 system.

These symbols converted as text are designed to build images. Practically is a ‘Block Elements’ set extension.

— Added Runic set

PragmataPro Runic, includes Elder Futhark, Younger Futhark, Anglo-Saxon and Medieval Runes

I love the design of Runic letters and, after the request of a user, I’ve added them with pleasure to PragmataPro

PragmataPro Runic coding sample

PragmataPro Runic is the first monospaced Runic of all time

— New # TODO, # ERROR and other useful programming ligatures

PragmataPro new # TODO, # ERROR and other useful programming ligatures

Do you remember [TODO], [ERROR]… ligatures?
The same trick was extended also # TODO, # ERROR…

— Better Drawings with Boxes and Arrows

PragmataPro 0.828 - All the glyphs of the 'Box Drawing' set are vertically aligned to 'Arrows', 'Supplemental Arrows', 'Supplemental Arrows-C' and 'Geometric Shapes' when they are next

The position of the arrows or geometric shapes like triangles are now correct when them are next to Box Drawing symbols.
Since v_0.828 diagrams and schemas are now more consistent

— Greek letters are more distinguishable

PragmataPro new Greek Theta, theta and zero. Letters are more distinguishable

— PragmataPro Arabic with accents

PragmataPro Arabic with accents planned to works as automatic composition

PragmataPro Arabic diacritics are combinable with Arabic script

— Other improvements:

— Regular: ‘Greek’, ‘Cyrillic’,’Latin Extended-A’ and ‘Latin Extended-B’ sets
are combinable with ‘Combining Diacritical Marks’

— all weights: added these new ligatures:
->- -<- =>= =<=

— all weights: added and updated new Nerd symbols from Nerd font

— Regular: improved the design of  л (el), м (em), н (en), ģ (gcommaccent)

— Regular: improved the design of some ‘Mathematical Operators’ and ‘Miscellaneous Technical’ glyphs to improve APL programming

— Bold, Italic and Bold Italic: added ‘Latin Extended-B’ and ‘Latin Extended Additional’ sets

— all weights: added the glyphs set by two numbers ‘Enclosed Alphanumerics’ like 11, 12, 13… 20

Feel free to contact me directly or notify an issue via Github to improve PragmataPro again and again.Thank you!

Kus-stenen retraced by Fabrizio Schiavi, set in PragmataPro Runic
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PragmataPro at the ArtCenter – Pasadena CA

2019-01-30
Mike Sierra Tango exhibition poster

PragmataPro, with other multiscript typefaces, will be show at MIKE / SIERRA / TANGO exhibition.
Presented by Hoffmitz Milken Center for Typography at ArtCenter College of Design south campus, Pasadena CA
Curated and Designed by Lavinia Lascaris, HMCT Exhibitions Designer.
Opens February 7 2019

PragmataPro panels at ArtCenter Pasadena context
Fabrizio Schiavi with PragmataPro panels at ArtCenter Pasadena
PragmataPro panels at ArtCenter Pasadena
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PragmataPro 0.827: a giant running like a cheetah!

2018-09-05

PragmataPro 0.827 loading time, a giant running like a cheetahWith the help of @kelas and other good friends of Pragmata Pro from the open source community, version 0.827 comes with a brand new ligature substitution engine which is 10-20x faster than before, depending on the input.

Now Pragmata Pro, with its 9437 glyphs, can be loaded in a few µs.
Practically a giant who run like a cheetah!

 

— Java and C/C++ reserved keywords are now kerned

PragmataPro C++ and Java reserved keywords kerned with GPOS table

Pragmata Pro™ is the first monospaced typeface to offer precise glyph positioning in common programming keywords, enabled by default in editors that support OpenType GPOS table.
The consistency and orthogonality of fixed pitch is now combined with the finesse of a proportional font.
The result is less tiring, aesthetically pleasing coding experience.
Your eye will know the difference before you do.

 

 

— Added Enclosed Alphanumerics set

Pragmata Pro Enclosed Alphanumerics

In all the weights of all the versions.

 

 

— Enabled Hebrew Nikkud

Pragmata Pro Hebrew Nikkud

At the moment only in Regular versions. In the next releases the same marking system will be added to all the weights and also in Arabic alphabet.

 

 

— Added Markdown checklist ligatures

Markdown checklist ligatures are available enabling OpenType Stylistic Set 12 in your editor and are based on these combinations:

- [ ]    - [-]    - [v]    - [x]

 

— Marks and accents are combinable with letters

PragmataPro sample of letters combined with marksMarks  are often used in Phonetics texts and Mathematical formulas.
Since this version they are in their right place.

 

 

— Other improvements:

— all weights: problems with some terminal emulators have been resolved

— all weights: added these ligatures:
|- turnstile like
||- double turnstile like
_|_ bottom like
=~= <-< >-> <--> <== <<== ==>>

— all weights: vertical position of * (asterisk) are aligned to x-height

— Regular: improved TrueType hinting of → ← ↑ ↓ # { } / \

— Regular: improved the consistency between Mathematical Operators and Miscellaneous Technical set

— Bold, Italic and Bold Italic: added IPA characters and its extensions

— all weights: typing us after numbers and space will appears microsecond µs in serif variant

 

 

Feel free to contact me directly or notify an issue via Github to improve PragmataPro again and again.
Thank you!

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Essential PragmataPro Survey

2018-06-01
PragmataPro optimized for Terminal app

I’m working at the PragmataPro 0.827 release and in order to fixing the slowdown of Terminal with the complete PragmataPro issue I’ll include in the package also Essential PragmataPro with the characters and symbols essential for programming.

For this I need your help in identify the very essential Unicode characters for this new Essential version.

Please select the Unicode Ranges and the OpenType features you feel essential or contact me directly if you prefer

Thanks for your time!

PragmataPro 0.826 all characters
PragmataPro 0.826 OpenType features
2018-06-25 Essential Pragmata Pro survey results
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PragmataPro 0.826 Ligatures in mono version? Why not!

2017-08-18

After many requests, I decided to change the font files structure of PragmataPro:

 

New font files structure since PragmataPro 0.826

The PragmataPro complete pack includes two folders: Fonts with ligatures and Fonts without ligatures
Both folders includes two kind of fonts grouped as Modularspaced and Monospaced.

The goal is to fit the need to have Modularspaced fonts without ligatures, Monospaced fonts with ligatures.
Two situations impossible to get before.

 

— New ligatures for R language and C#

Now the entire set of ligatures has reached 177 for every weight (Regular, Bold, Italic and Bold Italic)!

 

PragmataPro 0.826 new ligatures

 

 

 

— Harmonized APL symbols

Thanks to the help of abrudz now PragmataPro has more consistent APL symbols

 

PragmataPro 0.826 APL symbols

 

 

— Minor improvements:

— Regular and Italic: improved the TrueType hinting

— all weights: ligatures are now more compatible with IDEs like IntelliJ IDEA

 

 

Log-in and download your updated files for free, if you purchased the license from this site.

Feel free to contact me directly or notify an issue via Github to improve PragmataPro again and again.
Thank you!

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PragmataPro 0.825 – more pros!

2017-05-02

Thanks to the numerous suggestions arrived, PragmataPro now is even a more complete professional typeface:

 

— Added Extra Bow Drawing symbols suggested by Dmtri Nesteruk

Some month ago Dmtri Nesteruk wrote me an email with a sketched good idea: to add a bullet to some used box drawing glyphs. The result is very interesting! By now  also a lot of graphic designers can be rethink the use of box drawing.

 

Milano Metro map text only

The entire map of the metro of Milan I redesigned using this exclusive box drawing method

Milano Metro map text only

Perfect also for text only diagramsdiagram using PragmataPro box drawing extra

 

 

— Added [FIXME] [TODO] [BUG] [NOTE] [HACK] [MARK] ligatures to emphasize important messages in command line

After all these notifications I suppose now has all the command line messages emphasized

Pragmata Pro command line messages ligatures

 

 

— Added all the icons of Nerd font

Nerd font contents a lot icons useful to Vim users. More info: http://nerdfonts.com/

nerd fonts combined with pragmatapro font

 

 

— Regular: improved the design of the entire Fullwidth and Halfwidth letters

PragmataPro can interact more better with other CJK fonts.

pragmatapro fullwidth alphabet

 

 

— Minors improvements:

— Regular: added power symbols to Miscellaneous Technical set

— all weights: improved the TrueType hinting above all for Microsoft Windows

— all weights: added :<: :>: ligatures for Scala

— all weights: added :) :-) :( :-( :D :P :3 ligatures for text chatting

 

Feel free to contact me directly or notify an issue via Github to improve PragmataPro again and again.
Thank you!

2 comments
 

PragmataPro 0.824 – more ligatures and compatibility

2016-09-21
PragmataPro 0.824 more ligatures and compatibility

all weights: Ligatures are now Contextual Alternates OpenType features to obtain more compatibility with the most part of Text Editors

all weights: added these important ligatures for Scala programming:
## ++= -+- -\/ \/- <~< <==> =/= ??? |-> |--> |=> |==>

all weights: improved the design of these ligatures:
<!-- <-- -->

all weights: added ligatures to emphasize important message in command line
[INFO] [WARNING] [FATAL] [ERROR] [TRACE] [DEBUG] [WARN] [ERR]
(thanks to Kim Silkebækken for this cool idea!)

Regular: improved the hinting of numerous glyphs like x, s, twosuperior, threesuperior, questiondown

Regular: improved the design of some math operators
emptyset, intersection, union, multiset, multisetmultiplication, multisetunion, plus.circled, minus.circled, multiply.circled, fraction.circled, operator.circled, ringoperator.circled, asteriskoperator.circled, equals.circled, dash.circled, squaredplus, squaredminus, squaredtimes, squareddotoperator, logicalnotReversed, turnedNotSign, blackDiamond, whiteDiamond, blackDiamond, whiteDiamond, supersetBesideSubset, supersetBesideAndJoinedByDashWithSubset, doubleStrokeNotSign, reversedDoubleStrokeNotSign, logicalnot
(thanks to Miëtek Bak for the important support!)

Please visit PragmataPro page for more infos

6 comments
 

PragmataPro 0.823 – Math support complete!

2016-06-29

Three important reached goals and changes in the version 0.823 of PragmataPro:

 

➊ Completion of Math support!

It seems impossible to me but it’s really happens

 

PragmataPro first modular font with all math support

 

➋ Arabic alphabet improved

PragmataPro now it’s more Kufi style to improve the readability at low sizes

 

PragmataPro Arabic 2016

 

➌ Hebrew alphabet improved

and added important glyphs in the Unicode Alphabetic Presentation Form set

 

PragmataPro Hebrew 2016

 

 Last but not least:

* Regular: improved the design of many Math symbols
/universal now has an alternative version available using OpenType ss12 feature
/emptyset now has an alternative version available using OpenType ss13 feature

* all weights: now PragmataPro is completely compatible with IntelliJ IDEA software

* all weights: removed U+3000-303F CJK Symbols and Punctuation set
to avoid conflicts with other CJK fonts

* all weights: added the greek glyphs useful for LaTeX /Digamma and /digamma

* Regular: improved the hinting of Latin sets glyphs

* Regular: added the missing subscript and superscript Latin and Greek small letters,
available using OpenType feature “sinf” “sups”

* all weights: now Braille alphabet haven’t helpers lines
to use the Braille alphabet with helpers line use
OpenType Stylistic Set 11 “ss11” feature

* all weights: added these important ligatures:
<--- <!-- --> :=> <->

* Regular: added and improved the design of the glyphs for Computer User Interface
http://xahlee.info/comp/unicode_user_interface_icons.html

 

 

Log-in and download your updated files for free, if you purchased the license from this site.
Feel free to contact me directly or notify an issue via Github to improve PragmataPro again and again.
Thank you!

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PragmataPro 0.822 – the silent revolution

2016-03-14

PragmataPro font v_0.822

There are a lot of changes in the version 0.822 of PragmataPro:

 

➊ Perfect integration with CJK fonts and Emoji

All the glyphs are been scaled to exactly 0.5 em² wide (= 1024-unit em) so they are compatible with CJK (Chinese/Japanese/Korean) characters, where every character are exactly 1 em² wide (= 2048 unit)

PragmataPro integration with CJK monospaced fonts

 

 

➋ All the arrows, planned by Unicode until now, are been designed

PragmataPro is now the first modular/monospaced font of the history that includes all these arrows.
You can see all from my Github repository named ‘Arrow Finder’

Arrows of PragmataPro displayed by pointing orientation

 

 

➌ Towards completion of Math support

It’s been improved the design of U+2200 – U+22FF Mathematical Operators set
added the U+2980 – U+29FF Misc. Mathematical Symbols-B set
added the U+2A00 – U+2AFF Supplemental Math Operators set
under the precious supervision of Pierre Le Marre

PragmataPro improved thanks by Pierre Le Marre annotations

 

 

➍ New ligatures for functional programming languages

The design of ligatures that includes < and > is changed
Added a lot of new ligatures to improve the programming in Haskell, Scala, Swift … in all the weights available

PragmataPro 0.822 ligatures for functional programming

 

Feel free to contact me directly or notify an issue via Github to improve PragmataPro again and again.
Thank you!

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