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//===-- BreakpointID.cpp ----------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// C Includes
#include <stdio.h>
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/Breakpoint/Breakpoint.h"
#include "lldb/Breakpoint/BreakpointID.h"
#include "lldb/Core/Error.h"
#include "lldb/Core/Stream.h"
using namespace lldb;
using namespace lldb_private;
BreakpointID::BreakpointID(break_id_t bp_id, break_id_t loc_id)
: m_break_id(bp_id), m_location_id(loc_id) {}
BreakpointID::~BreakpointID() = default;
const char *BreakpointID::g_range_specifiers[] = {"-", "to", "To", "TO",
nullptr};
// Tells whether or not STR is valid to use between two strings representing
// breakpoint IDs, to
// indicate a range of breakpoint IDs. This is broken out into a separate
// function so that we can
// easily change or add to the format for specifying ID ranges at a later date.
bool BreakpointID::IsRangeIdentifier(const char *str) {
int specifier_count = 0;
for (int i = 0; g_range_specifiers[i] != nullptr; ++i)
++specifier_count;
for (int i = 0; i < specifier_count; ++i) {
if (strcmp(g_range_specifiers[i], str) == 0)
return true;
}
return false;
}
bool BreakpointID::IsValidIDExpression(const char *str) {
break_id_t bp_id;
break_id_t loc_id;
BreakpointID::ParseCanonicalReference(str, &bp_id, &loc_id);
return (bp_id != LLDB_INVALID_BREAK_ID);
}
void BreakpointID::GetDescription(Stream *s, lldb::DescriptionLevel level) {
if (level == eDescriptionLevelVerbose)
s->Printf("%p BreakpointID:", static_cast<void *>(this));
if (m_break_id == LLDB_INVALID_BREAK_ID)
s->PutCString("<invalid>");
else if (m_location_id == LLDB_INVALID_BREAK_ID)
s->Printf("%i", m_break_id);
else
s->Printf("%i.%i", m_break_id, m_location_id);
}
void BreakpointID::GetCanonicalReference(Stream *s, break_id_t bp_id,
break_id_t loc_id) {
if (bp_id == LLDB_INVALID_BREAK_ID)
s->PutCString("<invalid>");
else if (loc_id == LLDB_INVALID_BREAK_ID)
s->Printf("%i", bp_id);
else
s->Printf("%i.%i", bp_id, loc_id);
}
bool BreakpointID::ParseCanonicalReference(const char *input,
break_id_t *break_id_ptr,
break_id_t *break_loc_id_ptr) {
*break_id_ptr = LLDB_INVALID_BREAK_ID;
*break_loc_id_ptr = LLDB_INVALID_BREAK_ID;
if (input == nullptr || *input == '\0')
return false;
const char *format = "%i%n.%i%n";
int chars_consumed_1 = 0;
int chars_consumed_2 = 0;
int n_items_parsed = ::sscanf(
input, format,
break_id_ptr, // %i parse the breakpoint ID
&chars_consumed_1, // %n gets the number of characters parsed so far
break_loc_id_ptr, // %i parse the breakpoint location ID
&chars_consumed_2); // %n gets the number of characters parsed so far
if ((n_items_parsed == 1 && input[chars_consumed_1] == '\0') ||
(n_items_parsed == 2 && input[chars_consumed_2] == '\0'))
return true;
// Badly formatted canonical reference.
*break_id_ptr = LLDB_INVALID_BREAK_ID;
*break_loc_id_ptr = LLDB_INVALID_BREAK_ID;
return false;
}
bool BreakpointID::StringIsBreakpointName(const char *name, Error &error) {
error.Clear();
if (name && (name[0] >= 'A' && name[0] <= 'z')) {
if (strcspn(name, ".- ") != strlen(name)) {
error.SetErrorStringWithFormat("invalid breakpoint name: \"%s\"", name);
}
return true;
} else
return false;
}
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