Cyan Ogilvie

Architect at Ruby Lane: https://www.rubylane.com , and a user of Tcl since the mid 90s with version 7.6

I've written a few Tcl extensions over the years, some of which have made it out into the wild. My areas of interest in the Tcl space are:

• The language itself
• Finding ways to use custom Tcl_ObjTypes to solve problems in interesting and sometimes surprising ways
• Graphics, games and image handling in Tcl
• Networking in Tcl

Presentations at Tcl conferences:

2016:

• rl_json: paper: https://www.tcl-lang.org/community/tcl2016/assets/talk39/rl_json-paper.pdf slides: https://www.tcl-lang.org/community/tcl2016/assets/talk39/rl_json-slides.html
• parse_args: paper: https://www.tcl-lang.org/community/tcl2016/assets/talk33/parse_args-paper.pdf slides: https://www.tcl-lang.org/community/tcl2016/assets/talk33/parse_args-slides.html
• rl_html: Safely constructing HTML from Tcl scripts using tdom's appendFromScript

2017:

• Hydra and deduplication for Tcl_NewStringObj: video: https://youtu.be/k00OCiICimg slides: https://www.tcl-lang.org/community/tcl2017/assets/talk98/Talk.html

2019:

• Tcl support for AWS Lambda functions: video: https://www.youtube.com/watch?v=VYz_SpCejio&t=1895s

Some of the packages I've built:

• rl_json Directly manipulate JSON values in the way dict directly manipulates dictionary values. Fast. https://github.com/RubyLane/rl_json
• parse_args My take on core-command-style argument parsing for Tcl scripts: https://github.com/RubyLane/parse_args
• type (package) Allow custom Tcl_ObjTypes to be defined and used in Tcl scripts: https://github.com/cyanogilvie/type
• AWS Lambda Tcl runtime: https://github.com/RubyLane/AWS_lambda
• Tcl.js (Cyan Ogilvie) An implementation of the Tcl language in Javascript: https://github.com/cyanogilvie/Tcl.js
• sop State-Oriented-Programming: reifying boolean state within an application using the metaphor of dynamic digital logic circuits, and hooking callbacks to edges: https://github.com/cyanogilvie/sop
• crypto (package) Pure Tcl implementations of blowfish, RSA and a CSPRNG: https://github.com/cyanogilvie/crypto
• oodaemons Implementations of common internet server protocols as TclOO classes: https://github.com/cyanogilvie/oodaemons
• rl_http A never-blocking (not even during connection phase) HTTP client designed for mission critical integrations with JSON REST services at scale (multithreaded keepalives, reliable timeouts, proper handling of encodings and HTTPS support): https://github.com/RubyLane/rl_http
• gc_class Garbage collection (lifecycle management) for TclOO objects using variable traces: https://github.com/RubyLane/gc_class
• Pixel (package) A package for doing reasonably fast raster graphics from Tcl. Includes many sub packages for loading / saving various image formats, and for display to various targets: https://github.com/cyanogilvie/pixel
• inotify A package for receiving filesystem events from the Linux kernel: https://github.com/cyanogilvie/inotify