Editors (Vim) #

Lecture source: https://missing.csail.mit.edu/2020/editors/

Movements, edits, counts, modifiers.

Exercises #

(Advanced) Convert XML to JSON (example file) using Vim macros. Try to do this on your own, but you can look at the macros section above if you get stuck.
- Gdd, ggdd delete first and last lines
- Macro to format a single element (register e)
  - Go to line with <name>
  - qe^r"f>s": "<ESC>f<C"<ESC>q
    - qe: start recording a macro in register e.
    - ^: go to first non-blank character (that is <).
    - r": replace it as ".
    - f>: find forward > on the current line.
    - s": "<ESC>: substitute the >, replace it as ": ", then leave the insert mode.
    - f<: find forward < on the current line.
    - C"<ESC>: delete from cursor to the end of the line, add " at the end, then leave the insert mode.
    - q: stop recording macro.
- Macro to format a person (register p)
  - Go to line with <person>
  - qpS{<ESC>j@eA,<ESC>j@ejS},<ESC>q
    - qp: start recording a macro in register p.
    - S{<ESC>: delete line and insert {, then leave the insert mode.
    - j: move one line down.
    - @e: replays the e macro (for name property).
    - A,<ESC>:
    - j: move one line down.
    - @e: replays the e macro (for email property).
    - j: move one line down.
    - S},<ESC>: delete line and insert },, then leave the insert mode.
    - q: stop recording macro.
- Macro to format a person and go to the next person (register q)
  - Go to line with <person>
  - qq@pjq
    - qq: start recording a macro in register q.
    - @p: replays the p macro (to format a person).
    - j: move one line down.
    - q: stop recording macro.
- Execute macro until end of file
  - 999@q
- Manually remove last , and add [ and ] delimiters