On Tue, 2022-01-04 at 13:53 +0100, Jérôme Abel wrote:

The number of lines of code must be less than 10 000 ?

Where did you get that from?

$ cat pd/src/*.c | wc -l 84235

Roman

Hi Jérôme,

Likewise!

A pd patch must be run in old computers. Is it related to the choice of C Language and Tcl TK ? Could be also related to some ecological vision about new technologies obsolescence and anti-productivism ?

What I understand from one of Miller's papers relates (somehow) to the "old computers" part. My summary: In the 1980's, GUI and sound generation used to be separate partly because the computers were not powerful to do both at the same time, and partly because people built upon existing designs that were split like that.

(See pages 6 and onward in "Max at Seventeen", http://msp.ucsd.edu/Publications/dartmouth-reprint.pdf )

The same paper probably answers aspects of your question about MUSIC and Max Mathew as well. (See page 2.)

The number of lines of code must be less than 10 000 ?

Another paper by Miller mentions 100k for a version of Max, and indicates the same limit should apply to Pd: "[...] at 100,000 lines of code, Max/FTS was approaching the limit of maintainability."

(This is on page 5 of "The Deadly Embrace Between Music Software and Its Users", http://msp.ucsd.edu/Publications/pdf_EMS14_puckette.pdf )

The current number of source lines of code per the sloccount utility is 118,532 across all programming languages. C accounts for about 85% of that. More details below.

Best regards, Albert.

----8<----

$ sloccount --version 2.26 $ git branch --verbose

• master bad155d2 oops, version number to 0.52-1 (forgot to fold in the

last 'develop' fixes and now can't rename 0.52-0) $ sloccount . [...lots of setup messages omitted...] Categorizing files. Finding a working MD5 command.... Found a working MD5 command. Computing results.

SLOC Directory SLOC-by-Language (Sorted) 73275 src_top_dir ansic=73275 19223 portaudio ansic=16072,cpp=3108,sh=43 8678 tcl tcl=8671,sh=7 6850 extra ansic=6850 4926 portmidi ansic=4888,sh=38 4169 m4 sh=4169 548 mac sh=548 470 msw sh=470 202 doc ansic=202 60 libpd ansic=60 56 po tcl=56 44 linux sh=44 16 md awk=13,sh=3 15 top_dir sh=15 0 asio (none) 0 autom4te.cache (none) 0 bin (none) 0 font (none) 0 man (none)

Totals grouped by language (dominant language first): ansic: 101347 (85.50%) tcl: 8727 (7.36%) sh: 5337 (4.50%) cpp: 3108 (2.62%) awk: 13 (0.01%)

Total Physical Source Lines of Code (SLOC) = 118,532 Development Effort Estimate, Person-Years (Person-Months) = 30.10 (361.19) (Basic COCOMO model, Person-Months = 2.4 * (KSLOC**1.05)) Schedule Estimate, Years (Months) = 1.95 (23.44) (Basic COCOMO model, Months = 2.5 * (person-months**0.38)) Estimated Average Number of Developers (Effort/Schedule) = 15.41 Total Estimated Cost to Develop = $ 4,066,015 (average salary = $56,286/year, overhead = 2.40). SLOCCount, Copyright (C) 2001-2004 David A. Wheeler SLOCCount is Open Source Software/Free Software, licensed under the GNU GPL. SLOCCount comes with ABSOLUTELY NO WARRANTY, and you are welcome to redistribute it under certain conditions as specified by the GNU GPL license; see the documentation for details. Please credit this data as "generated using David A. Wheeler's 'SLOCCount'."

About the history of Pd, we associate often the design of Pd with Music III - V Max Mathew's program. Could someone validate this, I can't find any screenshots or design principles about Music III - V ?

I would say the association is very tenuous, comparing with Csound-type concepts, which is a direct descendent of the MUSIC paradigm. Although there is some connection between all these music softwares, the way of operating is very different.