R में Intermediate Regular Expressions
Angelo Zehr
Data Journalist
pattern = "Nemo|Harmony|Dory"
ऐसे भी बना सकते हैं:
names <- c("Nemo", "Harmony", "Dory")
pattern = glue_collapse(names, sep = "|")
| Character Class | नाम | उदाहरण |
|---|---|---|
\\d |
अंक | 0, 1, 2, 3,… |
\\w |
शब्द | a, b, c…, 1, 2, 3…, _ |
\\s |
स्पेस | " ", टैब और लाइन ब्रेक |
[A-Za-z] |
अक्षर | A, B, C,…, a, b, c,… |
| Multiplier | दोहराव |
|---|---|
+ |
एक या अधिक बार |
* |
शून्य या अधिक बार |
api_response <- "payload: 'Adam, 5, 3', headers: 'Auth...'"
str_match(api_resopnse, pattern = "[A-Za-z]+, \\d+, \\d+")
मैच होगा: Adam, 5, 3
pattern = glue_collapse(c(
"name" = "[A-Za-z]+",
", ",
"attempts" = "\\d+",
", ",
"logins" = "\\d+"
))
R में Intermediate Regular Expressions