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readline_buffer: fix "cursor in prompt" bug

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It happens when readline displays a prompt just before switching
to a shorter one
This commit is contained in:
moneromooo-monero 2018-10-12 21:02:59 +00:00
parent 77e1ebff26
commit 8f3c793749
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GPG key ID: 686F07454D6CEFC3
2 changed files with 5 additions and 1 deletions
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1
contrib/epee/include/readline_buffer.h
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@ -27,6 +27,7 @@ namespace rdln
private: private:
std::streambuf* m_cout_buf; std::streambuf* m_cout_buf;
size_t m_prompt_length;
static std::vector<std::string>& completion_commands(); static std::vector<std::string>& completion_commands();
}; };

5
contrib/epee/src/readline_buffer.cpp
View file

@ -44,7 +44,7 @@ std::vector<std::string>& rdln::readline_buffer::completion_commands()
} }
rdln::readline_buffer::readline_buffer() rdln::readline_buffer::readline_buffer()
: std::stringbuf(), m_cout_buf(NULL) : std::stringbuf(), m_cout_buf(NULL), m_prompt_length(0)
{ {
current = this; current = this;
} }
@ -86,8 +86,11 @@ void rdln::readline_buffer::set_prompt(const std::string& prompt)
if(m_cout_buf == NULL) if(m_cout_buf == NULL)
return; return;
boost::lock_guard<boost::mutex> lock(sync_mutex); boost::lock_guard<boost::mutex> lock(sync_mutex);
rl_set_prompt(std::string(m_prompt_length, ' ').c_str());
rl_redisplay();
rl_set_prompt(prompt.c_str()); rl_set_prompt(prompt.c_str());
rl_redisplay(); rl_redisplay();
m_prompt_length = prompt.size();
} }
void rdln::readline_buffer::add_completion(const std::string& command) void rdln::readline_buffer::add_completion(const std::string& command)