algal

Subscribing to a Google Calendar from an SFUSD Google Account

SFUSD Google accounts can only send and receive emails from SFUSD teachers, so they cannot receive calendar invitations from normal gmail accounts, like the gmail accounts of their parents. So you cannot invite them to join a calendar as usual.

Here's a workaround.

In the normal gmail account:

1. Create the calendar to share from a normal gmail account.
2. Go to Calendar Settings / General

algal

' Expects a datetimestr in the format  "YYYYMMDD" with - or / or no separator
' Parses independently of local region, unlike VBA.DateTime.DateValue()
' Known-good on Excel for Mac Version 16.4
Function parseYYYYMMDD(dateTimeStr As String) As Date

    Dim normalized As String
    normalized = VBA.Strings.Trim(dateTimeStr)
    normalized = VBA.Strings.Replace(dateTimeStr, "/", "")
    normalized = VBA.Strings.Replace(normalized, "-", "")

algal

from typing import Dict, List, Tuple

def makeKeyDict(items:List[Tuple]) -> Dict:
    "Gives a list of tuples (a,b), returns a dict mapping a to set of b"
    d = {}
    for (a,b) in items:
        d[a] = set([b]).union(d.get(a,set()))
    return d
    
def findKeysWithMultipleValues(keydict) -> List:

algal

from fastai2.vision.all import * # to get L

import pandas as pd

def readMD5file(md5path:Path) -> pd.DataFrame:
  """
  Generate MD5 output file by doing a search like:
  
    find /home/jupyter/data/foldersToAdd/ -iname '*jpg' -print0 | xargs -0 -n 100 md5sum >> /home/jupyter/data/foldersToAdd.md5.out

algal

#!/bin/bash
if [ "$#" -ne 1 ]; then
    echo "usage: $0 PDF_filename..."
    echo
    echo "This script takes a PDF file as command line arguments,"
    echo "and generates a new, landscape-formatted PDF file, where every "
    echo "page has very large margins which may be useful for editorial notes"
    echo
    echo "Requires: pdfjam"
    echo

algal

#!/usr/bin/swift
/*
  Reads stdin, requiring UTF8-encoded text.

  Parses it as initial text followed by a sequence of H2 markdown blocks.

  Prints to stdout the initial text plus the H2 blocks in reversed order.

*/
import Foundation

algal

# sourcing this file will define a bash functions that 
# tries to run subsequent calls to emacs with 24 bit color.
#
# It sets TERM=xterm-emacs-leg if 
# - we've created a user-local terminfo record for xterm-emacs-leg, and
# - we're using iTerm2 or something has set COLORTERM=truecolor
# 
# This will cause emacs to use 24 bit color only when it will work,
# inside or outside of tmux. I haven't found a way to auto-detect Blink.sh yet.
#

algal

;; The purpose of this file is to define the function `fixssh-in-tmux`,
;; which attempts to fix ssh agent forwarding when it breaks within
;; a tmux session


;; from https://github.com/magnars/s.el/blob/master/s.el
(defun fixssh--s-match (regexp s &optional start)
  "When the given expression matches the string, this function returns a list
of the whole matching string and a string for each matched subexpressions.
If it did not match the returned value is an empty list (nil).

algal

#!/bin/bash
# prints California time, on macOS or Ubuntu 18
exec env TZ='America/Los_Angeles' date -R

algal

import Darwin
import Foundation

// known good: Swift 5
// runs on macOS, probably works on iOS (but haven't tried)

/// Wraps `host_statistics64`, and provides info on virtual memory
///
/// - Returns: a `vm_statistics64`, or nil if the kernel reported an error
///