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//===-- StringList.cpp ------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "lldb/Core/StringList.h"
#include <string>
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 char *str, size_t str_len)
{
if (str)
m_strings.push_back (std::string (str, str_len));
}
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)
{
uint32_t len = strings.GetSize();
for (int i = 0; i < len; ++i)
m_strings.push_back (strings.GetStringAtIndex(i));
}
uint32_t
StringList::GetSize ()
{
return m_strings.size();
}
const char *
StringList::GetStringAtIndex (size_t idx)
{
if (idx < m_strings.size())
return m_strings[idx].c_str();
return NULL;
}
void
StringList::Clear ()
{
m_strings.clear();
}
void
StringList::LongestCommonPrefix (std::string &common_prefix)
{
//arg_sstr_collection::iterator pos, end = m_args.end();
int pos = 0;
int end = m_strings.size();
if (pos == end)
common_prefix.clear();
else
common_prefix = m_strings[pos];
for (++pos; pos != end; ++pos)
{
int new_size = strlen (m_strings[pos].c_str());
// First trim common_prefix if it is longer than the current element:
if (common_prefix.size() > new_size)
common_prefix.erase (new_size);
// Then trim it at the first disparity:
for (int i = 0; i < common_prefix.size(); i++)
{
if (m_strings[pos][i] != common_prefix[i])
{
common_prefix.erase(i);
break;
}
}
// If we've emptied the common prefix, we're done.
if (common_prefix.empty())
break;
}
}
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::DeleteStringAtIndex (size_t idx)
{
if (idx < m_strings.size())
m_strings.erase (m_strings.begin() + idx);
}
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;
int idx = 0;
while (idx < m_strings.size())
{
if (m_strings[idx].empty())
DeleteStringAtIndex(idx);
else
idx++;
}
}
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