Make UCP option the default for regex matching #27189
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mbauman
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kind:breaking
nalimilan
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May 21, 2018
base/regex.jl
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| @@ -72,8 +76,12 @@ after the ending quote, to change its behaviour: | |||
| - `s` allows the `.` modifier to match newlines. | |||
| - `x` enables "comment mode": whitespace is enabled except when escaped with `\\`, and `#` | |||
| is treated as starting a comment. | |||
| - `a` disables `UCP` mode (enables ASCII mode). By default `\\B`, `\\b`, `\\D`, `\\d`, `\\S`, | |||
| `\\s`, `\\W`, `\\w`, etc match based on unicode character properties. With this option, | |||
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"etc." and "Unicode". "are recognized" -> "these sequences only match"
\w matches numbers as well (which are not valid drive letters) and will match unicode characters once we turn on UCP.
Fixes #27084. Regexes now match based on unicode character properties, rather than just ASCII character properties, e.g. `match(r"\w+", "café")` will now match the entire word (and not just `caf`). This behavior can be disabled with the `a` flag to the regex string macro (e.g. `r"\w+"a`).
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Fixes #27084. Regexes now match based on unicode character properties,
rather than just ASCII character properties, e.g.
match(r"\w+", "café")will now match the entire word (and not just
caf). This behavior canbe disabled with the
aflag to the regex string macro (e.g.r"\w+"a).