1/*
2 * Copyright (c) 2015, Intel Corporation
3 *
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5 * modification, are permitted provided that the following conditions are met:
6 *
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8 * this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
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11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of Intel Corporation nor the names of its contributors
13 * may be used to endorse or promote products derived from this software
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15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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27 */
28
29/** \file
30 * \brief Anchored acyclic graph -> DFA analysis.
31 */
32#include "ng_anchored_acyclic.h"
33
34#include "ng_holder.h"
35#include "ng_reports.h"
36#include "ng_util.h"
37#include "ue2common.h"
38#include "rose/rose_build.h"
39#include "util/compile_context.h"
40
41namespace ue2 {
42
43bool splitOffAnchoredAcyclic(RoseBuild &rose, const NGHolder &h,
44 const CompileContext &cc) {
45 if (!cc.grey.allowAnchoredAcyclic) {
46 return false;
47 }
48
49 if (!isAnchored(h)) {
50 DEBUG_PRINTF("fail, not anchored\n");
51 return false;
52 }
53
54 if (!isAcyclic(h)) {
55 DEBUG_PRINTF("fail, not acyclic\n");
56 return false;
57 }
58
59 if (rose.addAnchoredAcyclic(h)) {
60 return true;
61 } else {
62 DEBUG_PRINTF("failed to add anchored nfa\n");
63 return false;
64 }
65}
66
67} // namespace ue2
68