Thanks Tamas. I am not aware of Ragel. Regard David Le mardi 13 décembre 2016 20:24:18 UTC+1, Tamás Gulácsi a écrit : > > 2016. december 13., kedd 16:53:45 UTC+1 időpontban David Sofo a következőt > írta: >> >> Hi, >> >> For a set of rules expressed in regular expression (around 1000 rules >> expected) to find some keywords in a text file (~50Ko each file), how to >> speed up the execution time. Currently I compile the regex rule at >> initialization time with init function at put them in a map at package >> level then run the regex rules with a loop. The regex have this form: >> >> \b(?:( (A1|A2|A3) | (B1|B2|B3) ) )\b >> >> spaces are put for readability. A and B are classes of keywords. >> >> How to speed up the execution: at regular expression level or others >> levels (such execution priority). I am using Ubuntu 14.04. Any suggestion >> is welcome. Thank you. >> >> Here a code >> >> Regards >> David >> >> > Are these really just words? Then split the string first, then match these > tokens. > Or try to create one huge regexp - maybe that's faster. > Or create one huge regexp, roll it through Ragel, and use the generated Go > code. >
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