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add new Literal API for pure literal expressions:

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Design compile time api hs_compile_lit() and hs_compile_lit_multi()
to handle pure literal pattern sets. Corresponding option --literal-on
is added for hyperscan testing suites. Extended parameters and part of
flags are not supported for this api.
This commit is contained in:
Hong, Yang A
2019-07-18 00:29:27 +08:00
committed by Chang, Harry
parent 8bfbf07f75
commit 23e5f06594
36 changed files with 745 additions and 116 deletions
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16
util/string_util.h
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 2015, Intel Corporation
* Copyright (c) 2015-2019, Intel Corporation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@@ -127,4 +127,18 @@ void prettyPrintRange(std::ostream &out, it_t begin, it_t end) {
}
}
// Transfer given string into a hex-escaped pattern.
static really_inline
char *makeHex(const unsigned char *pat, unsigned patlen) {
size_t hexlen = patlen * 4;
char *hexbuf = (char *)malloc(hexlen + 1);
unsigned i;
char *buf;
for (i = 0, buf = hexbuf; i < patlen; i++, buf += 4) {
snprintf(buf, 5, "\\x%02x", (unsigned char)pat[i]);
}
hexbuf[hexlen] = '\0';
return hexbuf;
}
#endif // STRING_UTIL_H