mingodad

8 ms·

31.
by mingodad 2y ago
I've just update the EBNF for rarilroad diagram here https://github.com/google/zetasql/issues/134#issuecomment-14... with the full grammar.
32.
by mingodad 2y ago
There is also https://melt.cs.umn.edu/ that has an extension that add templates and algebraic data types to C : https://github.com/melt-umn/ableC-template-algebraic-data-ty...
33.
by mingodad 3y ago
There is also https://github.com/ondras/wwwsqldesigner : WWW SQL Designer, your online SQL diagramming tool
34.
by mingodad 3y ago
For people interested on grammars there is also: - Convert tree-sitter grammar.json to EBNF https://meimporta.eu/tree-sitter/json2ebnf.html - An alternative syntax to write tree-sitter grammars https://ming
35.
by mingodad 3y ago
Looking at https://llvm.org/docs/TableGen/ProgRef.html I've just added a partially working grammar/parser for tablegen in https://mingodad.github.io/parsertl-playground/playground&#x
36.
by mingodad 3y ago
There is also gram_grep[0] "Search text using a grammar, lexer, or straight regex. Chain searches for greater refinement." See also parsertl-playground[1] for online edit/test grammars. [0] https://github.com/B
37.
Show HN: Yacc/Lex editor/tester online(mingodad.github.io)
3 points by mingodad 3y ago|1 comments
38.
by mingodad 3y ago
I also just add a JQ parser/grammar to the online LALR(1)/FLEX grammar editor/tester at https://mingodad.github.io/parsertl-playground/playground/ select "Jq parser (partially working)" fr
39.
by mingodad 3y ago
It's not true "the best chance you have is reading the 14 thousand-line parse.y file and trying to understand it", there are several tools to navigate yacc/bnf style grammars like https://www.bottlecaps.de&#x2
40.
by mingodad 3y ago
You can also try it online here https://mingodad.github.io/CG-SQL-Lua-playground/ using the Lua language.
41.
by mingodad 4y ago
This seem to be a public repository for it https://github.com/UoYCS-plasma/GP2
42.
by mingodad 4y ago
Just in case someone want's to try it I've did some work to allow build on linux (Ubuntu 18.04 and probably others too), you can see it here https://github.com/mingodad/cyclone .
43.
by mingodad 4y ago
On linux chromium 7.5GB of memory and 100% of one cpu.
44.
by mingodad 4y ago
It seems too hack depending on "__attribute__((always_inline))", tcmalloc for performance, specific libunwind to dump backtraces, doesn't build with g++. Maybe the general idea is valuable but the implementation ?
45.
by mingodad 4y ago
I did something like this here https://github.com/mingodad/lalr-parser-test where I expanded byacc/bison/lemon to generate a naked grammar, ebnf grammar (understood by https://www.bottlecaps.de&#x2
46.
by mingodad 4y ago
It's an interesting approach to bring more expressiveness to C, this part need a bit more thought: "If any spaces or parentheses appear in the type name, they will be substituted by an underscore. Thus unsigned int will become u
47.
by mingodad 4y ago
Also to add to your list is https://github.com/KuramitsuLab/pegpy it's an intriguing peg parser with origin from a Japanese group https://github.com/nez-peg/nez .
48.
by mingodad 4y ago
To add to your list I just found this project https://github.com/ChrisHixon/chpeg it has good performance and it's relatively simple compared to others.
49.
by mingodad 5y ago
Also I recently discovered https://github.com/mingodad/lwc lightweight c++ preprocessor and here are some conversation and links about it https://github.com/mingodad/cfront-3/issues/6 an
50.
Ask HN: Does someone have pyvm-3.0.tar.bz2
3 points by mingodad 5y ago|0 comments
51.
by mingodad 5y ago
Here https://github.com/mingodad/cyclone is my attempt to update the latest available cyclone code and fix it to build on more recents operating systems. The first step is build as 32 bits as clean as possible then att
52.
by mingodad 5y ago
Would be nice if mozilla/linux/... foundation give funding to it and made it opensource and part of OS's like libc is right now.
53.
by mingodad 5y ago
Remark: It's for research and historical purpose to have a working version of CFRONT. I would appreciate if someone have or know where to find the missing versions based on http://www.softwarepreservation.org/projects&#
54.
Show HN: Cfront built on Linux, OS X and Windows(github.com)
2 points by mingodad 5y ago|1 comments
55.
by mingodad 5y ago
Here is a sample to test the "pedantic" patch: ==== select "23 % 3", 23 % 3; select "12.3 % 3", 12.3 % 3; select "12 % 2.5", 12 % 2.5; select "23 / 3", 23 / 3; select "12.3 &#
56.
by mingodad 5y ago
I also proposed once something like "PRAGMA pedantic" where any type conversion would be reported to stderr see the changes and a sample output: https://sqlite.org/forum/forumpost/692ae69237f2537b?t=h h
57.
by mingodad 5y ago
Thank you for explaining your understand of the issue presented here with a wide view. I was shocked when I got the results shown here and thought of times in the past were I copied and pasted formulas (and sometimes did some small changes
58.
by mingodad 5y ago
After removing all modulo operations and transforming all numbers to floating point: ==== EXPR = (((((((788.0) (8.46))))+8342.0 1.803-1.0)) 4186.4 (15.0)) (((22.0/((7530.0/((2.0) (((((25.0))-421))))))*597.0)+7283.8-9.60+167.0))+(8
59.
by mingodad 5y ago
Using https://www.onlinegdb.com/online_fortran_compiler FORTRAN = 8.51528699E+12 ==== Program Hello Print *, (((((((788)*(8.46))))+8342*1.803-1))*4186.4*(15))*(((22/((7530/((2)*(((((25))-421))))))*597)+7283.8-9.60
60.
by mingodad 5y ago
And after removing all modulo operations: ==== EXPR = (((((((788)*(8.46))))+8342*1.803-1))*4186.4*(15))*(((22/((7530/((2)*(((((25))-421))))))*597)+7283.8-9.60+167))+(8871) SQUILU = 8515287402650.3 SQLITE = 8515287402650.34 POSTGRE

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