mirror of
https://github.com/VectorCamp/vectorscan.git
synced 2025-10-10 00:02:24 +03:00
Initial commit of Hyperscan
This commit is contained in:
Matthew Barr
149
src/nfa/nfa_dump_internal.cpp
Normal file
149
src/nfa/nfa_dump_internal.cpp
Normal file
@@ -0,0 +1,149 @@
|
||||
/*
|
||||
* Copyright (c) 2015, Intel Corporation
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* * Redistributions of source code must retain the above copyright notice,
|
||||
* this list of conditions and the following disclaimer.
|
||||
* * Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* * Neither the name of Intel Corporation nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
||||
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include "config.h"
|
||||
|
||||
#include "nfa_dump_internal.h"
|
||||
|
||||
#include "accel.h"
|
||||
#include "nfa_internal.h"
|
||||
#include "ue2common.h"
|
||||
|
||||
#include <cctype> // for isprint
|
||||
#include <sstream>
|
||||
|
||||
#ifndef DUMP_SUPPORT
|
||||
#error No dump support!
|
||||
#endif
|
||||
|
||||
namespace ue2 {
|
||||
|
||||
void dumpDotPreamble(FILE *dotFile) {
|
||||
fprintf(dotFile, "digraph NFA {\n");
|
||||
fprintf(dotFile, "rankdir=LR;\n");
|
||||
fprintf(dotFile, "size=\"11.5,8\"\n");
|
||||
fprintf(dotFile, "node [ shape = circle ];\n");
|
||||
fprintf(dotFile, "START [style=invis];\n");
|
||||
}
|
||||
|
||||
void dumpDotTrailer(FILE *dotFile) {
|
||||
fprintf(dotFile, "}\n");
|
||||
}
|
||||
|
||||
static
|
||||
void dumpFlags(const struct NFA *nfa, FILE *f) {
|
||||
fprintf(f, "Flags : ");
|
||||
if (nfa->flags & NFA_ACCEPTS_EOD) {
|
||||
fprintf(f, "ACCEPTS_EOD ");
|
||||
}
|
||||
if (nfa->flags & NFA_ZOMBIE) {
|
||||
fprintf(f, "ZOMBIE ");
|
||||
}
|
||||
fprintf(f, "\n");
|
||||
}
|
||||
|
||||
// Render an unsigned integer as a string, returning "inf/unknown" if it's
|
||||
// zero.
|
||||
static
|
||||
std::string value_or_inf(const u64a v) {
|
||||
std::ostringstream oss;
|
||||
if (v) {
|
||||
oss << v;
|
||||
} else {
|
||||
oss << "inf/unknown";
|
||||
}
|
||||
return oss.str();
|
||||
}
|
||||
|
||||
void dumpTextReverse(const struct NFA *nfa, FILE *f) {
|
||||
bool twofer = false;
|
||||
|
||||
fprintf(f, "Queue : %u\n", nfa->queueIndex);
|
||||
fprintf(f, "Length : %u bytes\n", nfa->length);
|
||||
fprintf(f, "Num Positions : %u\n", nfa->nPositions);
|
||||
fprintf(f, "Scratch State : %u bytes\n", nfa->scratchStateSize);
|
||||
fprintf(f, "Stream State : %u bytes\n", nfa->streamStateSize);
|
||||
dumpFlags(nfa, f);
|
||||
fprintf(f, "Max Width : %s\n", value_or_inf(nfa->maxWidth).c_str());
|
||||
fprintf(f, "Min Width : %u\n", nfa->minWidth);
|
||||
fprintf(f, "BiAnchored Width : %s\n",
|
||||
value_or_inf(nfa->maxBiAnchoredWidth).c_str());
|
||||
fprintf(f, "Max Offset : %s\n", value_or_inf(nfa->maxOffset).c_str());
|
||||
fprintf(f, "Reverse Acceleration : ");
|
||||
|
||||
switch (nfa->rAccelType) {
|
||||
case ACCEL_NONE:
|
||||
fprintf(f, "NONE\n");
|
||||
return;
|
||||
case ACCEL_RVERM:
|
||||
fprintf(f, "R VERM");
|
||||
break;
|
||||
case ACCEL_RVERM_NOCASE:
|
||||
fprintf(f, "R VERM NOCASE");
|
||||
break;
|
||||
case ACCEL_RDVERM:
|
||||
fprintf(f, "R VERM x2");
|
||||
twofer = true;
|
||||
break;
|
||||
case ACCEL_RDVERM_NOCASE:
|
||||
fprintf(f, "R VERM NOCASE x2");
|
||||
twofer = true;
|
||||
break;
|
||||
case ACCEL_REOD:
|
||||
fprintf(f, "R EOD");
|
||||
break;
|
||||
case ACCEL_REOD_NOCASE:
|
||||
fprintf(f, "R EOD NOCASE");
|
||||
break;
|
||||
case ACCEL_RDEOD:
|
||||
fprintf(f, "R EOD x2");
|
||||
twofer = true;
|
||||
break;
|
||||
case ACCEL_RDEOD_NOCASE:
|
||||
fprintf(f, "R EOD x2 NOCASE");
|
||||
twofer = true;
|
||||
break;
|
||||
default:
|
||||
fprintf(f, "UNKNOWN\n");
|
||||
return;
|
||||
}
|
||||
|
||||
char c1 = nfa->rAccelData.array[0];
|
||||
char c2 = nfa->rAccelData.array[1];
|
||||
|
||||
if (!twofer) {
|
||||
fprintf(f, " \\x%02hhx (%c) ", c1, isprint(c1) ? c1 : '?');
|
||||
} else {
|
||||
fprintf(f, " \\x%02hhx\\x%02hhx (%c%c) ", c1, c2,
|
||||
isprint(c1) ? c1 : '?', isprint(c2) ? c2 : '?');
|
||||
}
|
||||
|
||||
fprintf(f, "offset %hhd\n", nfa->rAccelOffset);
|
||||
}
|
||||
|
||||
} // namespace ue2
|
||||
Reference in New Issue
Block a user