|
| 1 | +#definePCRE2_CODE_UNIT_WIDTH8 |
| 2 | + |
| 3 | +#include<iostream> |
| 4 | +#include<pcre2.h> |
| 5 | +#include<string> |
| 6 | +#include<vector> |
| 7 | + |
| 8 | +intmain() |
| 9 | +{ |
| 10 | +const std::vector<std::string> lines{ |
| 11 | +"[05821BE4 | 2019-05-13 12:28:56] (13036) http://contiview.site/projects/cmd.php [co_project.view] RQST START", |
| 12 | +"[05821BE4 | 2019-05-13 12:28:56] (13036) http://contiview.site/projects/cmd.php [co_project.view] RQST END [normal] 402 ms", |
| 13 | +"[05671FA1 | 2019-04-17 14:08:03] (62931) http://contiview.site/projects/cmd.php [co_project.view] RQST START", |
| 14 | +"[05671FA1 | 2019-04-17 14:08:03] (62931) http://contiview.site/projects/cmd.php [co_project.view] RQST END [normal] 237 ms", |
| 15 | +"[05822AE4 | 2019-06-17 06:59:03] (15828) http://contiview.site/cmd.php [co_project.dialog_doc_details] RQST START", |
| 16 | +"[05822AE4 | 2019-06-17 06:59:03] (15828) http://contiview.site/cmd.php [co_project.dialog_doc_details] RQST END [normal] 318 ms", |
| 17 | +"[00180D0F | 2009-09-15 09:34:47] (193.98.108.243:39170, 879) /cmd.php [co_search.browse] RQST START", |
| 18 | +"[00180D0F | 2009-09-15 09:34:48] (193.98.108.243:39170, 879) /cmd.php [co_search.browse] RQST END [normal] 799 ms", |
| 19 | +"[00180D0D | 2009-09-15 09:34:19] (193.98.108.243:39169, 23727) /browse/ RQST START", |
| 20 | +"[00180D0D | 2009-09-15 09:34:19] (193.98.108.243:39169, 23727) /browse/ RQST END [normal] 35 ms", |
| 21 | +"[001F86EA | 2009-11-02 16:05:50] (193.98.108.243:1789, 10994) /cmd.php [co_doc.details] RQST START", |
| 22 | +"[001F86EA | 2009-11-02 16:05:50] (193.98.108.243:1789, 10994) /cmd.php [co_doc.details] RQST END [normal] 84 ms"}; |
| 23 | + |
| 24 | +int errorcode; |
| 25 | + PCRE2_SIZE erroroffset; |
| 26 | + |
| 27 | +const PCRE2_SPTR pattern = (PCRE2_SPTR)R"(\[([^ ]{8}) \| ([^\]]{19})\] \((?:[^,]+, )?\d+\) [^ ]+ \[([^\]]+)\] RQST END \[[^\]]+\] *(\d+) ms)"; |
| 28 | + pcre2_code* re =pcre2_compile(pattern, PCRE2_ZERO_TERMINATED,0, &errorcode, &erroroffset,nullptr); |
| 29 | + |
| 30 | +if (!re) { |
| 31 | + PCRE2_UCHAR buffer[256]; |
| 32 | +pcre2_get_error_message(errorcode, buffer,sizeof(buffer)); |
| 33 | + std::cout <<"PCRE2 compilation failed at offset" << erroroffset <<":" << buffer << std::endl; |
| 34 | +return1; |
| 35 | + } |
| 36 | + |
| 37 | +if ((errorcode =pcre2_jit_compile(re, PCRE2_JIT_COMPLETE)) <0) { |
| 38 | + PCRE2_UCHAR buffer[256]; |
| 39 | +pcre2_get_error_message(errorcode, buffer,sizeof(buffer)); |
| 40 | + std::cout <<"PCRE2 JIT compile error" << erroroffset <<":" << buffer << std::endl; |
| 41 | +return2; |
| 42 | + } |
| 43 | + |
| 44 | + pcre2_match_context* mcontext =pcre2_match_context_create(nullptr); |
| 45 | + |
| 46 | +if (!mcontext) { |
| 47 | + std::cout <<"PCRE2 unable to create match context" << std::endl; |
| 48 | +return3; |
| 49 | + } |
| 50 | + |
| 51 | + pcre2_jit_stack* jit_stack =pcre2_jit_stack_create(32*1024,512*1024,nullptr); |
| 52 | + |
| 53 | +if (!jit_stack) { |
| 54 | + std::cout <<"PCRE2 unable to create JIT stack" << std::endl; |
| 55 | +return4; |
| 56 | + } |
| 57 | + |
| 58 | +pcre2_jit_stack_assign(mcontext,nullptr, jit_stack); |
| 59 | + |
| 60 | + pcre2_match_data* match_data =pcre2_match_data_create_from_pattern(re,nullptr); |
| 61 | + |
| 62 | +if (!match_data) { |
| 63 | + std::cout <<"PCRE2 unable to create match data" << std::endl; |
| 64 | +return5; |
| 65 | + } |
| 66 | + |
| 67 | +for (auto line : lines) { |
| 68 | +const PCRE2_SPTR subject = (PCRE2_SPTR) line.c_str(); |
| 69 | +constint rc =pcre2_jit_match(re, subject, line.size(),0,0, match_data, mcontext); |
| 70 | + |
| 71 | +if (rc >1) { |
| 72 | +const PCRE2_SIZE* ovector =pcre2_get_ovector_pointer(match_data); |
| 73 | + |
| 74 | +for (int i =1; i < rc; ++i) { |
| 75 | +const PCRE2_SPTR substring_start = subject + ovector[2*i]; |
| 76 | +constint substring_length = ovector[2*i +1] - ovector[2*i]; |
| 77 | +const std::string_view s{(constchar*) substring_start, (std::size_t) substring_length}; |
| 78 | + std::cout <<"MATCH" << i <<":\"" << s <<"\"" << std::endl; |
| 79 | + } |
| 80 | + } |
| 81 | + } |
| 82 | + |
| 83 | +pcre2_match_data_free(match_data); |
| 84 | +pcre2_jit_stack_free(jit_stack); |
| 85 | +pcre2_match_context_free(mcontext); |
| 86 | +pcre2_code_free(re); |
| 87 | +} |