Comments (7)
If you turn on tracing, you might see the problem, with the same piece of input being parsed a lot.
from peggy.
Nod. You should still take a look at your grammar for ReDoS-style issues then. Places where you have (a*)+
for example.
from peggy.
Can you isolate this to a small grammar input that shows the same behavior? These sorts of things are sometimes ReDoS-style issues.
from peggy.
Yes that might be the case although is rather complex to reduce the grammar we have CallExpressions https://github.com/peggyjs/peggy/blob/main/examples/javascript.pegjs#L631MethodExpressions etc. Maybe creating a MultiCallExpression might be able to help.
from peggy.
@hildjj Fixed it on my end, but if anyone encounters this adding caching (or the lack of) was one of the culprits, it might have been on the migration from peg that the setting was removed. Thank you very much.
from peggy.
Did it work better with caching on, or with caching off? We might not have quite enough thought given to how caching interacts with the newer features.
from peggy.
Caching on, it made a huge difference.
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Related Issues (20)
- Allow use of an empty array as default value in allowedStartRules option HOT 1
- 4.0.1 dropped support for Node 18 HOT 3
- Implement soft-mode with access to partial results
- Start and end index of matched rule in the source code. HOT 5
- allow await HOT 2
- Code completion for Peggy grammar HOT 3
- posAssertion doesn't work HOT 1
- Add StartRules to .d.ts
- Allow whitespace between plucked word and its pattern
- Failed to run "peggy" on windows, "-S.exe" is missing, what's this? HOT 3
- Proposal to rename `grammarSource` option in parse method to `source` HOT 1
- Infinite repetition in RFCs HOT 3
- Failed to compile grammar containing imports HOT 3
- Grammar with token "constructor" fails to generate HOT 2
- Web tests fail
- Allow es6 plugins from CLI HOT 2
- Clean up rollup hacks in CLI
- Allow ES6 config files
- non-default startRule doesn't work with multiple allowedStartRules HOT 1
- Make rule name available inside action blocks
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