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regexp: wrong matches when using Unicode character classes #32299

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opennota opened this issue May 29, 2019 · 1 comment
Closed

regexp: wrong matches when using Unicode character classes #32299

opennota opened this issue May 29, 2019 · 1 comment

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@opennota
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@opennota opennota commented May 29, 2019

What version of Go are you using (go version)?

$ go version
go version go1.12.5 linux/amd64

Does this issue reproduce with the latest release?

Yes.

What operating system and processor architecture are you using (go env)?

go env Output
$ go env
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/xxx/.cache/go-build"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOOS="linux"
GOPATH="/home/xxx/gocode"
GOPROXY=""
GORACE=""
GOROOT="/home/xxx/go"
GOTMPDIR=""
GOTOOLDIR="/home/xxx/go/pkg/tool/linux_amd64"
GCCGO="gccgo"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD=""
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build004475749=/tmp/go-build -gno-record-gcc-switches"

What did you do?

https://play.golang.org/p/112417nrMlh

What did you expect to see?

FindAllString should return matches consisting either

  1. entirely of alphanumeric characters or

  2. entirely of non-alphanumeric characters, as in this example:

https://play.golang.org/p/wSTIJMabH5j

What did you see instead?

FindAllString returns the whole string as the only match.

@opennota opennota changed the title regexp: wrong submatches when using Unicode character classes regexp: wrong matches when using Unicode character classes May 29, 2019
@opennota
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@opennota opennota commented May 29, 2019

False alarm. I used negated classes.

@opennota opennota closed this May 29, 2019
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