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Trying to reference the Cf category generates an error #719

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justinmchase opened this issue Oct 13, 2020 · 1 comment
Closed

Trying to reference the Cf category generates an error #719

justinmchase opened this issue Oct 13, 2020 · 1 comment

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@justinmchase
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justinmchase commented Oct 13, 2020 •
edited

If I use the unicode class cf:

static ref RE: Regex = Regex::new(r"^[\p{cf}]$").unwrap();

It generates this error:

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
regex parse error:
    ^[\p{cf}]$
      ^^^^^^
error: Unicode property not found
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
)', src/runtime/modules/unicode.rs:21:28

But I see the format is here in the code:
https://github.com/rust-lang/regex/blob/master/regex-syntax/src/unicode_tables/property_values.rs#L72

If I change the regex to be \p{Format} then it actually works. This is a little confusing to me, can someone please explain why \p{cf} doesn't work?
@BurntSushi
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BurntSushi commented Oct 13, 2020 •
edited

This is fixed in regex 1.4.1 on crates.io. Thank you for the bug report! Good find.

This was referenced Mar 12, 2021
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jorickert pushed a commit to jorickert/regex that referenced this issue Aug 1, 2022
Syntax: Make \p{Sc} work
0b098ce 
'sc' refers to the 'Currency_Symbol' general category,
 but is also the abbreviation for the 'Script' property.

 Fixes rust-lang#835
 Related rust-lang#719 b1489c8
jorickert pushed a commit to jorickert/regex that referenced this issue Aug 1, 2022
Syntax: Make \p{Sc} work
d175482 
'sc' refers to the 'Currency_Symbol' general category,
but is also the abbreviation for the 'Script' property.

Fixes rust-lang#835
Related rust-lang#719 b1489c8
@jorickert jorickert mentioned this issue Aug 1, 2022
Closed
BurntSushi pushed a commit that referenced this issue Mar 4, 2023
@BurntSushi
syntax: \p{Sc} should map to \p{Currency_Symbol}
a009f89 
'sc' refers to the 'Currency_Symbol' general category, but is also
the abbreviation for the 'Script' property. So when going through the
canonicalization process, it would get normalized to 'Script' before
being checked as a general category. We fix it by special casing it.

See also #719

Fixes #835, #899
BurntSushi pushed a commit that referenced this issue Mar 5, 2023
@BurntSushi
syntax: \p{Sc} should map to \p{Currency_Symbol}
25866ae 
'sc' refers to the 'Currency_Symbol' general category, but is also
the abbreviation for the 'Script' property. So when going through the
canonicalization process, it would get normalized to 'Script' before
being checked as a general category. We fix it by special casing it.

See also #719

Fixes #835, #899
BurntSushi pushed a commit that referenced this issue Mar 21, 2023
@BurntSushi
syntax: \p{Sc} should map to \p{Currency_Symbol}
02428f1 
'sc' refers to the 'Currency_Symbol' general category, but is also
the abbreviation for the 'Script' property. So when going through the
canonicalization process, it would get normalized to 'Script' before
being checked as a general category. We fix it by special casing it.

See also #719

Fixes #835, #899
BurntSushi pushed a commit that referenced this issue Apr 15, 2023
@BurntSushi
syntax: \p{Sc} should map to \p{Currency_Symbol}
cb2d7cf 
'sc' refers to the 'Currency_Symbol' general category, but is also
the abbreviation for the 'Script' property. So when going through the
canonicalization process, it would get normalized to 'Script' before
being checked as a general category. We fix it by special casing it.

See also #719

Fixes #835, #899
BurntSushi pushed a commit that referenced this issue Apr 17, 2023
@BurntSushi
syntax: \p{Sc} should map to \p{Currency_Symbol}
e58a8c3 
'sc' refers to the 'Currency_Symbol' general category, but is also
the abbreviation for the 'Script' property. So when going through the
canonicalization process, it would get normalized to 'Script' before
being checked as a general category. We fix it by special casing it.

See also #719

Fixes #835, #899
BurntSushi pushed a commit that referenced this issue Apr 17, 2023
@BurntSushi
syntax: \p{Sc} should map to \p{Currency_Symbol}
345f18a 
'sc' refers to the 'Currency_Symbol' general category, but is also
the abbreviation for the 'Script' property. So when going through the
canonicalization process, it would get normalized to 'Script' before
being checked as a general category. We fix it by special casing it.

See also #719

Fixes #835, #899
BurntSushi pushed a commit that referenced this issue Apr 17, 2023
@BurntSushi
syntax: \p{Sc} should map to \p{Currency_Symbol}
9e6b094 
'sc' refers to the 'Currency_Symbol' general category, but is also
the abbreviation for the 'Script' property. So when going through the
canonicalization process, it would get normalized to 'Script' before
being checked as a general category. We fix it by special casing it.

See also #719

Fixes #835, #899
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@justinmchase @BurntSushi