How to parse an Org tree in Elisp?

How to parse an Org tree in Elisp?

After reading, you should be able to write elisp code to easily extract the org tree structure and manipulate it and output in a different tree format. extracts the components of the current heading. Return a list, like this. 1. reduced level, different if ‘org-odd-levels-only’ is set. 2. TODO keyword, or nil 5. tags string, or nil.

Which is part of org mode does Elisp parse?

The first 2, Mapping API and Property API are part of the org documentation. They are simple to understand. Mostly, they let you manipulate the org mode file programmatically, but is less helpful if you want to extract the tree structure into another format, such as JSON or graphviz DOT language.

Where do I put my Todo state changes in org?

These records are inserted after the headline as an itemized list, newest first43. When taking a lot of notes, you might want to get the notes out of the way into a drawer (see Drawers). Customize the variable org-log-into-drawerto get this behavior—the recommended drawer for this is called ‘LOGBOOK’44.

How to define logging settings for a subtree?

In order to define logging settings that are local to a subtree or a single item, define a ‘LOGGING’ property in this entry. Any non-empty ‘LOGGING’ property resets all logging settings to nil.

What is the precision of seconds in Lisp?

The seconds element is a Lisp timestamp that is nonnegative and less than 61; it is less than 60 except during positive leap seconds (assuming the operating system supports leap seconds). If the optional form argument is t, seconds uses the same precision as time; if form is integer, seconds is truncated to an integer.

How to do simple date arithmetic in Lisp?

You can perform simple date arithmetic by using out-of-range values for seconds, minutes, hour, day, and month ; for example, day 0 means the day preceding the given month. Currently a positive integer form should be at least 65536 if the returned value is intended to be given to standard functions expecting Lisp timestamps.