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syntax = "proto3";
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package envoy.extensions.regex_engines.v3;
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import "udpa/annotations/status.proto";
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option java_package = "io.envoyproxy.envoy.extensions.regex_engines.v3";
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option java_outer_classname = "GoogleRe2Proto";
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option java_multiple_files = true;
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option go_package = "github.com/envoyproxy/go-control-plane/envoy/extensions/regex_engines/v3;regex_enginesv3";
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option (udpa.annotations.file_status).package_version_status = ACTIVE;
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// [#protodoc-title: Google RE2]
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// [#extension: envoy.regex_engines.google_re2]
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// Google's `RE2 <https://github.com/google/re2>`_ regex engine. The regex string must adhere to
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// the documented `syntax <https://github.com/google/re2/wiki/Syntax>`_. The engine is designed
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// to complete execution in linear time as well as limit the amount of memory used.
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//
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// Envoy emits two stats for tracking the program size of regexes: the histogram ``re2.program_size``,
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// which records the program size, and the counter ``re2.exceeded_warn_level``, which is incremented
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// each time the program size exceeds the warn level threshold.
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message GoogleRE2 {
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}
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