convert_to_org_cal: directly convert raw outline to teaching org ical
In Gabegit/gmtools: My small tools for efficiency

Description Usage Arguments Value Examples

using create_teaching_calendar and teach_date to convert the outline raw items into org-mode todo list which will be inputed into icalendar.

1 2	convert_to_org_cal(outline_str, date_begin, course, teachdate, classtime, room, class, holidays = c(""), add_dates = c(""))

`outline_str`	outline string items
`date_begin`	the beginning date of the course,like "2017-03-01"
`course`	the name the course
`teachdate`	the week day of the course, like "Mon123"
`classtime`	the class time, like "14:00-16:30"
`room`	the lesson room
`class`	the class name
`holidays`	the no lesson days
`add_dates`	the days needed to have lessons

org-mode todo lists

outline <- "What is economics
讲授内容:definition of economics; graphs in economics。 阅读章节:Parkin Ch1。
The Economic Problem
讲授内容: production possibilities and opportunity cost;  阅读章节:Parkin ch2.
Demand and Supply
讲授内容: demand; supply; equilibrium.  阅读章节:Parkin ch3.
"
convert_to_org_cal(outline, date_begin="2017-03-02", course="micro",teachdate="mon123",classtime="8:00-10:40",room="1305",class="ap4")
holiday <- c("2017-03-30","2017-05-04")
add_date <-c("2017-04-01")
convert_to_org_cal(outline, date_begin="2017-03-02", course="micro",teachdate="mon123",classtime="8:00-10:40",room="1305",class="ap4",holiday,add_date)