Question

我有一个字符串：

"Father’s Name : ABC NaskarDate of Birth : 18-01-1979Permanent Address: This is the address field for the personContact Numbers : 98413***28Passport Number:PAN Number: AEFXXXXXXXLanguages Known: Tamil, English"

我想要的输出是：

"|||Father’s Name : ABC Naskar|||Date of Birth : 18-01-1979|||Permanent Address: This is the address field for the person|||Contact Numbers : 98413***28|||Passport Number:|||PAN Number: AEFXXXXXXX|||Languages Known: Tamil, English"

这意味着我要添加＆＃34; |||＆＃34;在一些特定的字符串之前，比如父亲的名字，出生日期等等。谢谢

Answer 1

我们无法找到一般模式，但根据显示的字符串，似乎|||分隔符应位于字符串的开头（^），无论有没有小写字母后跟大写字母或数字后跟大写字母，也在PAN之前以及XXXX和Languages之间。在这种情况下，应该使用正则表达式的外观。

gsub("(?<=[a-z0-9])(?=[A-Z])|^|(?<=[XXX])(?=Lang)|(?=PAN)", "|||", str1, perl = TRUE)
#[1] "|||Father’s Name : ABC Naskar|||Date of Birth : 18-01-1979|||Permanent Address: This is the address field for the person|||Contact Numbers : 98413***28|||Passport Number:|||PAN Number: AEFXXXXXXX|||Languages Known: Tamil, English"

数据

str1 <- "Father’s Name : ABC NaskarDate of Birth : 18-01-1979Permanent Address: This is the address field for the personContact Numbers : 98413***28Passport Number:PAN Number: AEFXXXXXXXLanguages Known: Tamil, English"

Answer 2

gsub("(Father’s Name)|(Date of Birth)", "|||\\1\\2", x)
[1] "|||Father’s Name : ABC Naskar|||Date of Birth : 18-01-1979Permanent Address: This is the address field for the personContact Numbers : 98413***28Passport Number:PAN Number: AEFXXXXXXXLanguages Known: Tamil, English"

幸运的是，正则表达式OR，"|"能够在第二种模式的替换中分布。

如何在R中的字符串之前放置字符或分隔符

2 个答案:

数据