Files
RedBear-OS/local/recipes/qt/qtbase/source/util/lexgen/nfa.h
T
vasilito f31522130f fix: comprehensive boot warnings and exceptions — fixable silenced, unfixable diagnosed
Build system (5 gaps hardened):
- COOKBOOK_OFFLINE defaults to true (fork-mode)
- normalize_patch handles diff -ruN format
- New 'repo validate-patches' command (25/25 relibc patches)
- 14 patched Qt/Wayland/display recipes added to protected list
- relibc archive regenerated with current patch chain

Boot fixes (fixable):
- Full ISO EFI partition: 16 MiB → 1 MiB (matches mini, BIOS hardcoded 2 MiB offset)
- D-Bus system bus: absolute /usr/bin/dbus-daemon path (was skipped)
- redbear-sessiond: absolute /usr/bin/redbear-sessiond path (was skipped)
- daemon framework: silenced spurious INIT_NOTIFY warnings for oneshot_async services (P0-daemon-silence-init-notify.patch)
- udev-shim: demoted INIT_NOTIFY warning to INFO (expected for oneshot_async)
- relibc: comprehensive named semaphores (sem_open/close/unlink) replacing upstream todo!() stubs
- greeterd: Wayland socket timeout 15s → 30s (compositor DRM wait)
- greeter-ui: built and linked (header guard unification, sem_compat stubs removed)
- mc: un-ignored in both configs, fixed glib/libiconv/pcre2 transitive deps
- greeter config: removed stale keymapd dependency from display/greeter services
- prefix toolchain: relibc headers synced, _RELIBC_STDLIB_H guard unified

Unfixable (diagnosed, upstream):
- i2c-hidd: abort on no-I2C-hardware (QEMU) — process::exit → relibc abort
- kded6/greeter-ui: page fault 0x8 — Qt library null deref
- Thread panics fd != -1 — Rust std library on Redox
- DHCP timeout / eth0 MAC — QEMU user-mode networking
- hwrngd/thermald — no hardware RNG/thermal in VM
- live preload allocation — BIOS memory fragmentation, continues on demand
2026-05-05 20:20:37 +01:00

90 lines
2.2 KiB
C++

// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#ifndef NFA_H
#define NFA_H
#include <QByteArray>
#include <QDebug>
#include <QHash>
#include <QList>
#include <QMap>
#include <QStack>
#include <QString>
#include "global.h"
typedef QMultiHash<InputType, int> TransitionMap;
struct State
{
QString symbol;
TransitionMap transitions;
};
inline QDataStream &operator<<(QDataStream &stream, const State &state)
{
return stream << state.symbol << state.transitions;
}
inline QDataStream &operator>>(QDataStream &stream, State &state)
{
return stream >> state.symbol >> state.transitions;
}
struct DFA : public QList<State>
{
void debug() const;
DFA minimize() const;
};
class NFA
{
public:
static NFA createSingleInputNFA(InputType input);
static NFA createSymbolNFA(const QString &symbol);
static NFA createAlternatingNFA(const NFA &a, const NFA &b);
static NFA createConcatenatingNFA(const NFA &a, const NFA &b);
static NFA createOptionalNFA(const NFA &a);
// convenience
static NFA createStringNFA(const QByteArray &str);
static NFA createSetNFA(const QSet<InputType> &set);
static NFA createZeroOrOneNFA(const NFA &a);
static NFA applyQuantity(const NFA &a, int minOccurrences, int maxOccurrences);
void setTerminationSymbol(const QString &symbol);
DFA toDFA() const;
inline bool isEmpty() const { return states.isEmpty(); }
inline int stateCount() const { return states.count(); }
void debug();
private:
void initialize(int size);
void addTransition(int from, InputType input, int to);
void copyFrom(const NFA &other, int baseState);
void initializeFromPair(const NFA &a, const NFA &b,
int *initialA, int *finalA,
int *initialB, int *finalB);
QSet<int> epsilonClosure(const QSet<int> &initialClosure) const;
inline void assertValidState(int state)
{ Q_UNUSED(state); Q_ASSERT(state >= 0); Q_ASSERT(state < states.count()); }
#if defined(AUTOTEST)
public:
#endif
int initialState;
int finalState;
QList<State> states;
};
#endif // NFA_H