forked from OSchip/llvm-project
61 lines
2.3 KiB
C++
61 lines
2.3 KiB
C++
//===-- CompletionRequest.cpp -----------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Utility/CompletionRequest.h"
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using namespace lldb;
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using namespace lldb_private;
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CompletionRequest::CompletionRequest(llvm::StringRef command_line,
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unsigned raw_cursor_pos,
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int match_start_point,
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int max_return_elements,
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StringList &matches)
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: m_command(command_line), m_raw_cursor_pos(raw_cursor_pos),
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m_match_start_point(match_start_point),
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m_max_return_elements(max_return_elements), m_matches(&matches) {
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matches.Clear();
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// We parse the argument up to the cursor, so the last argument in
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// parsed_line is the one containing the cursor, and the cursor is after the
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// last character.
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m_parsed_line = Args(command_line);
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m_partial_parsed_line = Args(command_line.substr(0, raw_cursor_pos));
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m_cursor_index = m_partial_parsed_line.GetArgumentCount() - 1;
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if (m_cursor_index == -1)
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m_cursor_char_position = 0;
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else
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m_cursor_char_position =
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strlen(m_partial_parsed_line.GetArgumentAtIndex(m_cursor_index));
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matches.Clear();
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const char *cursor = command_line.data() + raw_cursor_pos;
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if (raw_cursor_pos > 0 && cursor[-1] == ' ') {
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// We are just after a space. If we are in an argument, then we will
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// continue parsing, but if we are between arguments, then we have to
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// complete whatever the next element would be. We can distinguish the two
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// cases because if we are in an argument (e.g. because the space is
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// protected by a quote) then the space will also be in the parsed
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// argument...
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const char *current_elem =
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m_partial_parsed_line.GetArgumentAtIndex(m_cursor_index);
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if (m_cursor_char_position == 0 ||
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current_elem[m_cursor_char_position - 1] != ' ') {
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m_parsed_line.InsertArgumentAtIndex(m_cursor_index + 1, llvm::StringRef(),
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'\0');
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m_cursor_index++;
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m_cursor_char_position = 0;
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}
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}
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}
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