1. Text-Objects
vim's elegant function
2014/02/15 - Kanazawa.rb meetup 18 LT

2. vim operation
•
[operator] [motion]
•
target = from cursor potion to motion result

3. vim operator
•
c : change
•
d : delete
•
y : yank
•
p : paste
•
etc ...

4. vim motion
•
j : next line
•
w : next word head
•
$ : line end
•
/ : search
•
etc ...

5. example
1.
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed
do eiusmod tempor incididunt ut labore et dolore magna
aliqua.
2.
Ut enim ad minim veniam, quis nostrud exercitation ullamco
laboris nisi ut aliquip ex ea commodo consequat.
3.
Duis aute irure dolor in reprehenderit in voluptate velit esse
cillum dolore eu fugiat nulla pariatur.
Excepteur sint occaecat cupidatat non proident, sunt in culpa
qui officia deserunt mollit anim id est laborum.

6. example
1.
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed
do eiusmod tempor incididunt ut labore et dolore magna
aliqua.
2.
Ut enim ad minim veniam, quis nostrud exercitation ullamco
laboris nisi ut aliquip ex ea commodo consequat.
3.
Duis aute irure dolor in reprehenderit in voluptate velit esse
cillum dolore eu fugiat nulla pariatur.
Excepteur sint occaecat cupidatat non proident, sunt in culpa
qui officia deserunt mollit anim id est laborum.
d$

7. example
1.
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed
do eiusmod tempor incididunt ut labore et dolore magna
aliqua.
delete
2.
Ut enim ad minim veniam, quis nostrud exercitation ullamco
laboris nisi ut aliquip ex ea commodo consequat.
3.
Duis aute irure dolor in reprehenderit in voluptate velit esse
cillum dolore eu fugiat nulla pariatur.
Excepteur sint occaecat cupidatat non proident, sunt in culpa
qui officia deserunt mollit anim id est laborum.
d$

8. example
1.
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed
do eiusmod tempor incididunt ut labore et dolore magna
aliqua.
delete
2.
Ut enim ad
3.
Duis aute irure dolor in reprehenderit in voluptate velit esse
cillum dolore eu fugiat nulla pariatur.
Excepteur sint occaecat cupidatat non proident, sunt in culpa
qui officia deserunt mollit anim id est laborum.
d$

9. motion only?
•
You can use Text-Objects

10. Text Objects
•
blocked chars
•
word, sentence, paragraph block
•
special char surround block
•
"xxx", (xxx), <xxx>, <p>xxx</p>

11. Text Objects
•
blocked chars
•
word, sentence, paragraph block
•
special char surround block
•
"xxx", (xxx), <xxx>, <p>xxx</p>
Yes, corder friendly!!

12. How to use
•
[operator] [motion]
↓
•
[operator] [text-objects specifier]
•
target = specified text-objects

13. specifier
•
[a|i][wsp])}>"'`t]
•
aw : a word
•
i> : inner >
•
at : a tag
•
etc...

14. example
1.
var superFunc = function() {
2.
console.log ('pretty good function');
3.
$("<div>")
4.
.html('<p>fancy html</p>')
5.
.appendTo('.super_anchor');
6.
};

15. example
1.
var superFunc = function() {
2.
console.log ('pretty good function');
3.
$("<div>")
4.
.html('<p>fancy html</p>')
5.
.appendTo('.super_anchor');
6.
};

16. example
1.
var superFunc = function() {
2.
console.log ('pretty good function');
3.
$("<div>")
4.
.html('<p>fancy html</p>')
5.
.appendTo('.super_anchor');
6.
};
di'

17. example
1.
var superFunc = function() {
2.
console.log ('');
3.
$("<div>")
4.
.html('<p>fancy html</p>')
5.
.appendTo('.super_anchor');
6.
};
di'

18. example
1.
var superFunc = function() {
2.
console.log ('pretty good function');
3.
$("<div>")
4.
.html('<p>fancy html</p>')
5.
.appendTo('.super_anchor');
6.
};

19. example
1.
var superFunc = function() {
2.
console.log ('pretty good function');
3.
$("<div>")
4.
.html('<p>fancy html</p>')
5.
.appendTo('.super_anchor');
6.
};
cit

20. example
1.
var superFunc = function() {
2.
console.log ('pretty good function');
3.
$("<div>")
4.
.html('<p>abc</p>')
5.
.appendTo('.super_anchor');
6.
};
cit

21. example
1.
var superFunc = function() {
2.
console.log ('pretty good function');
3.
$("<div>")
4.
.html('<p>fancy html</p>')
5.
.appendTo('.super_anchor');
6.
};
cat

22. example
1.
var superFunc = function() {
2.
console.log ('pretty good function');
3.
$("<div>")
include tag
4.
.html('<p>fancy html</p>')
5.
.appendTo('.super_anchor');
6.
};
cat

23. example
1.
var superFunc = function() {
2.
console.log ('pretty good function');
3.
$("<div>")
4.
.html('abc')
5.
.appendTo('.super_anchor');
6.
};
cat

24. example
1.
var superFunc = function() {
2.
console.log ('pretty good function');
3.
$("<div>")
4.
.html('<p>fancy html</p>')
5.
.appendTo('.super_anchor');
6.
};
yi}

25. example
1.
var superFunc = function() {
2.
console.log ('pretty good function');
3.
$("<div>")
4.
.html('<p>fancy html</p>')
5.
.appendTo('.super_anchor');
6.
};
yi}

26. Conclusion
•
Use "text objects" for elegant vim operation
•
:help text-objects

27. Thank you
Tomokazu Kiyohara
http://github.com/kiyohara
http://facebook.com/tomokazu.kiyohara