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Continue tutor (#737)

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* Add sections

* `COUNTS WITH MOTIONS`
* `SELECTING LINES`
* `UNDOING`

* Adjust lesson spacing to conform to page-wise scrolling

Vertical length of lessons reduced by 1 line so that page-up and
page-down move cleanly between lessons.

* Add sections

* `THE CHANGE COMMAND`
* `RECAP`
* `MULTIPLE CURSORS`

* Fix height of `RECAP` section

* Fix typo in `MULTIPLE CURSORS`

* Add additional information about space mode to `MULTIPLE CURSORS`

* Change `<SPACE><SPACE>` to `,`

* Add sections

* `THE SELECT COMMAND`
* `SELECTING VIA REGEX`
* `COLLAPSING SELECTIONS`

* Fix quote inconsistency
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@ -20,7 +20,6 @@ _________________________________________________________________
the first lesson.
=================================================================
= BASIC CURSOR MOVEMENT =
=================================================================
@ -43,7 +42,6 @@ _________________________________________________________________
=================================================================
= EXITING HELIX =
=================================================================
@ -66,7 +64,6 @@ _________________________________________________________________
=================================================================
= DELETION =
=================================================================
@ -89,7 +86,6 @@ _________________________________________________________________
=================================================================
= INSERT MODE =
=================================================================
@ -112,7 +108,6 @@ _________________________________________________________________
Note: The status bar will display your current mode.
Notice that when you press i, 'NOR' changes to 'INS'.
=================================================================
= MORE ON INSERT MODE =
=================================================================
@ -123,7 +118,7 @@ _________________________________________________________________
Common examples of insertion commands include:
i - Insert before the selection.
a - Insert after the selection. (a means "append")
a - Insert after the selection. (a means 'append')
I - Insert at the start of the line.
A - Insert at the end of the line.
@ -135,7 +130,6 @@ _________________________________________________________________
--> This sentence is miss
This sentence is missing some text.
=================================================================
= SAVING A FILE =
=================================================================
@ -158,7 +152,6 @@ _________________________________________________________________
=================================================================
= RECAP =
=================================================================
@ -181,7 +174,6 @@ _________________________________________________________________
=================================================================
= MOTIONS AND SELECTIONS =
=================================================================
@ -204,7 +196,6 @@ _________________________________________________________________
=================================================================
= MORE ON MOTIONS =
=================================================================
@ -227,6 +218,203 @@ _________________________________________________________________
=================================================================
= THE CHANGE COMMAND =
=================================================================
Press c to change the current selection.
The change command deletes the current selection and enters
Insert mode, so it is a very common shorthand for di.
1. Move the cursor to the line below marked -->.
2. Move to the start of an incorrect word and press w to
select it.
3. Press c to delete the word and enter Insert mode.
4. Type the correct word.
5. Repeat until the line matches the line below it.
--> This paper has heavy words behind it.
This sentence has incorrect words in it.
=================================================================
= COUNTS WITH MOTIONS =
=================================================================
Type a number before a motion to repeat it that many times.
1. Move the cursor to the line below marked -->.
2. Type 2w to move 2 words forward.
3. Type 3e to move to the end of the third word forward.
4. Type 2b to move 2 words backwards
5. Try the above with different numbers.
--> This is just a line with words you can move around in.
=================================================================
= SELECTING LINES =
=================================================================
Press x to select a whole line. Press again to select the next.
1. Move the cursor to the second line below marked -->.
2. Press x to select the line, and d to delete it.
3. Move to the fourth line.
4. Press x twice or type 2x to select 2 lines, and d to delete.
--> 1) Roses are red,
--> 2) Mud is fun,
--> 3) Violets are blue,
--> 4) I have a car,
--> 5) Clocks tell time,
--> 6) Sugar is sweet,
--> 7) And so are you.
=================================================================
= UNDOING =
=================================================================
Type u to undo. Type U to redo.
1. Move the cursor to the line below marked -->.
2. Move to the first error, and press d to delete it.
3. Type u to undo your deletion.
4. Fix all the errors on the line.
5. Type u several times to undo your fixes.
6. Type U (<SHIFT> + u) several times to redo your fixes.
--> Fiix the errors on thhis line and reeplace them witth undo.
=================================================================
= RECAP =
=================================================================
* Type w to select forward until the next word.
* Type e to select to the end of the current word.
* Type b to select backward to the start of the current word.
* Use uppercase counterparts, W,E,B, to traverse WORDS.
* Typing d deletes the entire selection, so you can delete a
word forward by typing wd.
* Type c to delete the selection and enter Insert mode.
* Type a number before a motion to repeat it that many times.
* Type x to select the entire current line. Type x again to
select the next line.
* Type u to undo. Type U to redo.
=================================================================
= MULTIPLE CURSORS =
=================================================================
Type C to duplicate the cursor to the next line.
1. Move the cursor to the first line below marked -->.
2. Type C to duplicate the cursor to the next line. Keys you
press will now affect both cursors.
3. Use Insert mode to correct the lines. The two cursors will
fix both lines simultaneously.
4. Type , to remove the second cursor.
--> Fix th two nes at same ime.
--> Fix th two nes at same ime.
Fix these two lines at the same time.
=================================================================
= THE SELECT COMMAND =
=================================================================
Type s to select matches in the selection.
1. Move the cursor to the line below marked -->.
2. Press x to select the line.
3. Press s. A prompt will appear.
4. Type 'apples' and press <ENTER>. Both occurrences of
'apples' in the line will be selected.
5. You can now press c and change 'apples' to something else,
like 'oranges'.
6. Type , to remove the second cursor.
--> I like to eat apples since my favorite fruit is apples.
=================================================================
= SELECTING VIA REGEX =
=================================================================
The select command selects regular expressions, not just exact
matches, allowing you to target more complex patterns.
1. Move the cursor to the line below marked -->.
2. Select the line with x and then press s.
3. Enter ' +' to select any amount of consecutive spaces >1.
4. Press c and change the matches to single spaces.
--> This sentence has some extra spaces.
Note: If you want to perform find-and-replace, the select
command is the way to do it. Select the text you want
to replace in — type % to select the whole file — and
then perform the steps explained above.
=================================================================
= COLLAPSING SELECTIONS =
=================================================================
Type ; to collapse selections to single cursors.
Sometimes, you want to deselect without having to move the
cursor(s). This can be done using the ; key.
1. Move the cursor to the line below marked -->.
2. Use the motions you have learned to move around the line,
and try using ; to deselect the text after it is selected
by the motions.
--> This is an error-free line with words to move around in.
=================================================================
This tutorial is still a work-in-progress.