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| //===-- StringList.cpp ------------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "lldb/Utility/StringList.h"
#include "lldb/Utility/Log.h"
#include "lldb/Utility/Stream.h"
#include "lldb/Utility/StreamString.h"
#include "llvm/ADT/ArrayRef.h"
#include <algorithm>
#include <stdint.h>
#include <string.h>
using namespace lldb_private;
StringList::StringList() : m_strings() {}
StringList::StringList(const char *str) : m_strings() {
if (str)
m_strings.push_back(str);
}
StringList::StringList(const char **strv, int strc) : m_strings() {
for (int i = 0; i < strc; ++i) {
if (strv[i])
m_strings.push_back(strv[i]);
}
}
StringList::~StringList() {}
void StringList::AppendString(const char *str) {
if (str)
m_strings.push_back(str);
}
void StringList::AppendString(const std::string &s) { m_strings.push_back(s); }
void StringList::AppendString(std::string &&s) { m_strings.push_back(s); }
void StringList::AppendString(const char *str, size_t str_len) {
if (str)
m_strings.push_back(std::string(str, str_len));
}
void StringList::AppendString(llvm::StringRef str) {
m_strings.push_back(str.str());
}
void StringList::AppendList(const char **strv, int strc) {
for (int i = 0; i < strc; ++i) {
if (strv[i])
m_strings.push_back(strv[i]);
}
}
void StringList::AppendList(StringList strings) {
m_strings.reserve(m_strings.size() + strings.GetSize());
m_strings.insert(m_strings.end(), strings.begin(), strings.end());
}
size_t StringList::GetSize() const { return m_strings.size(); }
size_t StringList::GetMaxStringLength() const {
size_t max_length = 0;
for (const auto &s : m_strings) {
const size_t len = s.size();
if (max_length < len)
max_length = len;
}
return max_length;
}
const char *StringList::GetStringAtIndex(size_t idx) const {
if (idx < m_strings.size())
return m_strings[idx].c_str();
return nullptr;
}
void StringList::Join(const char *separator, Stream &strm) {
size_t size = GetSize();
if (size == 0)
return;
for (uint32_t i = 0; i < size; ++i) {
if (i > 0)
strm.PutCString(separator);
strm.PutCString(GetStringAtIndex(i));
}
}
void StringList::Clear() { m_strings.clear(); }
std::string StringList::LongestCommonPrefix() {
if (m_strings.empty())
return {};
auto args = llvm::makeArrayRef(m_strings);
llvm::StringRef prefix = args.front();
for (auto arg : args.drop_front()) {
size_t count = 0;
for (count = 0; count < std::min(prefix.size(), arg.size()); ++count) {
if (prefix[count] != arg[count])
break;
}
prefix = prefix.take_front(count);
}
return prefix.str();
}
void StringList::InsertStringAtIndex(size_t idx, const char *str) {
if (str) {
if (idx < m_strings.size())
m_strings.insert(m_strings.begin() + idx, str);
else
m_strings.push_back(str);
}
}
void StringList::InsertStringAtIndex(size_t idx, const std::string &str) {
if (idx < m_strings.size())
m_strings.insert(m_strings.begin() + idx, str);
else
m_strings.push_back(str);
}
void StringList::InsertStringAtIndex(size_t idx, std::string &&str) {
if (idx < m_strings.size())
m_strings.insert(m_strings.begin() + idx, str);
else
m_strings.push_back(str);
}
void StringList::DeleteStringAtIndex(size_t idx) {
if (idx < m_strings.size())
m_strings.erase(m_strings.begin() + idx);
}
size_t StringList::SplitIntoLines(const std::string &lines) {
return SplitIntoLines(lines.c_str(), lines.size());
}
size_t StringList::SplitIntoLines(const char *lines, size_t len) {
const size_t orig_size = m_strings.size();
if (len == 0)
return 0;
const char *k_newline_chars = "\r\n";
const char *p = lines;
const char *end = lines + len;
while (p < end) {
size_t count = strcspn(p, k_newline_chars);
if (count == 0) {
if (p[count] == '\r' || p[count] == '\n')
m_strings.push_back(std::string());
else
break;
} else {
if (p + count > end)
count = end - p;
m_strings.push_back(std::string(p, count));
}
if (p[count] == '\r' && p[count + 1] == '\n')
count++; // Skip an extra newline char for the DOS newline
count++; // Skip the newline character
p += count;
}
return m_strings.size() - orig_size;
}
void StringList::RemoveBlankLines() {
if (GetSize() == 0)
return;
size_t idx = 0;
while (idx < m_strings.size()) {
if (m_strings[idx].empty())
DeleteStringAtIndex(idx);
else
idx++;
}
}
std::string StringList::CopyList(const char *item_preamble,
const char *items_sep) const {
StreamString strm;
for (size_t i = 0; i < GetSize(); i++) {
if (i && items_sep && items_sep[0])
strm << items_sep;
if (item_preamble)
strm << item_preamble;
strm << GetStringAtIndex(i);
}
return strm.GetString();
}
StringList &StringList::operator<<(const char *str) {
AppendString(str);
return *this;
}
StringList &StringList::operator<<(const std::string &str) {
AppendString(str);
return *this;
}
StringList &StringList::operator<<(StringList strings) {
AppendList(strings);
return *this;
}
StringList &StringList::operator=(const std::vector<std::string> &rhs) {
m_strings.assign(rhs.begin(), rhs.end());
return *this;
}
void StringList::LogDump(Log *log, const char *name) {
if (!log)
return;
StreamString strm;
if (name)
strm.Printf("Begin %s:\n", name);
for (const auto &s : m_strings) {
strm.Indent();
strm.Printf("%s\n", s.c_str());
}
if (name)
strm.Printf("End %s.\n", name);
LLDB_LOGV(log, "{0}", strm.GetData());
}
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