readline_buffer: Avoid consecutive duplicates in the history
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ebdc617408
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@ -6,6 +6,7 @@
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#include <boost/thread/lock_guard.hpp>
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#include <boost/algorithm/string.hpp>
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static bool same_as_last_line(const std::string&);
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static void install_line_handler();
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static void remove_line_handler();
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@ -175,8 +176,11 @@ static void handle_line(char* line)
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boost::trim_right(test_line);
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if(!test_line.empty())
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{
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add_history(test_line.c_str());
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history_set_pos(history_length);
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if (!same_as_last_line(test_line))
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{
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add_history(test_line.c_str());
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history_set_pos(history_length);
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}
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if (test_line == "exit" || test_line == "q")
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exit = true;
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}
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@ -192,6 +196,16 @@ static void handle_line(char* line)
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return;
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}
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// same_as_last_line returns true, if the last line in the history is
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// equal to test_line.
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static bool same_as_last_line(const std::string& test_line)
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{
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// Note that state->offset == state->length, when a new line was entered.
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HISTORY_STATE* state = history_get_history_state();
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return state->length > 0
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&& test_line.compare(state->entries[state->length-1]->line) == 0;
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}
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static char* completion_matches(const char* text, int state)
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{
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static size_t list_index;
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