after.rb

# some pdf file

def applicant_name
  { "form[0].applicant[1].name" => answers.applicant.name }
end

def applicant_email
  { "form[0].applicant[1].email" => answers.applicant.email }
end

before.rb

# some pdf file

label "form[0].applicant[1].name"
field :applicant_name do
  answers.applicant.name
end

label "form[0].applicant[1].email"
field :applicant_email do
  answers.applicant.email
end

moves.txt

# move your cursor to line 1

# start macro recording
qa

# move to inside of label ""
/label
<enter>
f"
l

# yank inside quotes to register "l"
"lyi"

# delete line
dd

# jump to field symbol name
f:
l

# yank word into register "f"
"fyw

# replace with a method definition
dd
O
def 
<esc>
"fp

# change method body
j
0
w
i
{ ""
<esc>
"lp
2w
i
 => 
<esc>
A
 }
<esc>
j

# press q again to stop recording
q

# the first block will be changed
# fire the macro a second time with:
@a

# second block is now changed