These are instructions for taking screenshots of an entire webpage, not just the part of the webpage visible in the browser.
This requires Safari 11.3, which comes on macOS 10.3.4.
| import Foundation | |
| /* | |
| Same API as Clojure's agents, but sadly not based on a lockless compare-and-swap operation since Swift doesn not provide one yet. | |
| */ | |
| class Agent<T> | |
| { |
| /** | |
| Returns an array of vertex positions. | |
| - precondition: the geoemetry must have vertices which are 3-vectors with floating point component values | |
| */ | |
| fileprivate func vertices(source:SCNGeometrySource) -> [SCNVector3] | |
| { | |
| precondition(source.usesFloatComponents == true, "I can only handle three-vectors whose components are floating-point values, i.e., floats or doubles") | |
| precondition(source.componentsPerVector == 3, "I can only be used for three vectors") |
| /*: | |
| Paste this into Swift Playgrounds on an iPad to see how | |
| modifying a label's frame affects its intrinsicContentSize. | |
| As near as I can tell, frame currently does not affect | |
| intrinsicContentSize. | |
| At least I am sure it did not used to affect it. | |
These notes describe how to install and configure a secured Jupyter server directly onto Ubuntu 16.04.
Warning: this might be stupid. In 2017, it might be wiser just to grab a docker image, since some of these look extremely well-packaged. In my view, the advantage of docker is that someone else does the packaging, while docker itself provides cross-platform portability, rudimentary process supervision, and perhaps a simpler model than your OS's package manager. It is easy to know what is installed, how to uninstall it, and where its boundaries are. The disadvantage of docker is that you need to understand docker possibly in addition to understanding some Unix fundamentals.
| #!/bin/sh | |
| emacsclient -n -e "(find-file-other-frame \"$1\")" | |
| # For this script to work, you must already have started | |
| # an emacs instance and started its server. You can do | |
| # that by adding some elisp like the following into | |
| # your .emacs file: | |
| # | |
| # (require 'server) | |
| # (server-mode 1) |
| //: Known-Good: Version 9.0 beta 5 (9M202q) | |
| //: Playground - noun: a place where people can play | |
| import UIKit | |
| //: This playground is for generating code to define CGColors to match UIColors |
| // known-good: Xcode 8.3.3 | |
| /* | |
| This shell script outputs which characters are special and need escaping in bash or sh: | |
| #!/bin/bash | |
| special=$'`!@#$%^&*()-_+={}|[]\\;\':",.<>?/ ' | |
| for ((i=0; i < ${#special}; i++)); do | |
| char="${special:i:1}" | |
| printf -v q_char '%q' "$char" |
| // known-good: Swift 4, in Xcode Version 9.0 beta 2 (9M137d) | |
| // will be unnecessary once the language can auto-synthesize for this case, or | |
| // when Apple's ships a Codable implementation for CoreGraphics struct types. | |
| extension CGSize : Codable { | |
| enum CodingKeys: String, CodingKey { | |
| case width | |
| case height | |
| } |
| // known-good: 8.3.2, Swift 3 | |
| /** | |
| Sometimes you just want to launch a synchronous HTTP request for some JSON, damnit. | |
| Other approaches here: https://github.com/algal/SynchronousDownloadPlayground | |
| */ | |
| extension URLSession { | |
| func sendSynchronousRequest(_ request:URLRequest, |