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Add replace function for characters

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This commit is contained in:
Stephen Chung 2020-05-12 23:30:55 +08:00
parent ec67879759
commit d6fd5416b0
2 changed files with 31 additions and 1 deletions
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2
README.md
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@ -1328,7 +1328,7 @@ The following standard methods (defined in the [`MoreStringPackage`](#packages)
| `index_of` | character/sub-string to search for, start index _(optional)_ | returns the index that a certain character or sub-string occurs in the string, or -1 if not found |
| `sub_string` | start index, length _(optional)_ | extracts a sub-string (to the end of the string if length is not specified) |
| `crop` | start index, length _(optional)_ | retains only a portion of the string (to the end of the string if length is not specified) |
| `replace` | target sub-string, replacement string | replaces a sub-string with another |
| `replace` | target character/sub-string, replacement character/string | replaces a sub-string with another |
| `trim` | _none_ | trims the string of whitespace at the beginning and end |
### Examples

30
src/packages/string_more.rs
View File

@ -226,6 +226,36 @@ def_package!(crate:MoreStringPackage:"Additional string utilities, including str
},
map,
);
reg_trinary_mut(
lib,
"replace",
|s: &mut String, find: String, sub: char| {
let new_str = s.replace(&find, &sub.to_string());
s.clear();
s.push_str(&new_str);
},
map,
);
reg_trinary_mut(
lib,
"replace",
|s: &mut String, find: char, sub: String| {
let new_str = s.replace(&find.to_string(), &sub);
s.clear();
s.push_str(&new_str);
},
map,
);
reg_trinary_mut(
lib,
"replace",
|s: &mut String, find: char, sub: char| {
let new_str = s.replace(&find.to_string(), &sub.to_string());
s.clear();
s.push_str(&new_str);
},
map,
);
reg_unary_mut(
lib,
"trim",