I have a string of text:
我有一串文字:
string = "%hello %world ho%w is i%t goin%g"
I want to return the following:
我想返回以下内容:
"Hello World hoW is iT goinG
The %
sign is a key that tells me the next character should be capitalized. The closest I have gotten so far is:
%符号是一个键,告诉我下一个字符应该大写。我到目前为止最接近的是:
@thing = "%this is a %test this is %only a %test"
if @thing.include?('%')
indicator_position = @thing.index("%")
lowercase_letter_position = indicator_position + 1
lowercase_letter = @thing[lowercase_letter_position]
@thing.gsub!("%#{lowercase_letter}","#{lowercase_letter.upcase}")
end
This returns:
"This is a Test this is %only a Test"
It looks like I need to iterate through the string to make it work as it is only replacing the lowercase 't' but I can't get it to work.
看起来我需要遍历字符串以使其工作,因为它只是替换小写的't'但我无法让它工作。
2 个解决方案
#1
7
You can do this with gsub
and a block:
你可以用gsub和一个块做到这一点:
string.gsub(/%(.)/) do |m|
m[1].upcase
end
Using a block allows you to run arbitrary code on each match.
使用块可以在每次匹配时运行任意代码。
#2
1
Inferior to @tadman, but you could write:
不如@tadman,但你可以写:
string.gsub(/%./, &:upcase).delete('%')
#=> "Hello World hoW is iT goinG
#1
7
You can do this with gsub
and a block:
你可以用gsub和一个块做到这一点:
string.gsub(/%(.)/) do |m|
m[1].upcase
end
Using a block allows you to run arbitrary code on each match.
使用块可以在每次匹配时运行任意代码。
#2
1
Inferior to @tadman, but you could write:
不如@tadman,但你可以写:
string.gsub(/%./, &:upcase).delete('%')
#=> "Hello World hoW is iT goinG