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Shell: Tab completion for programs in PATH

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This patch adds a function to LineEditor that takes the current shell
buffer, searches PATH for the first program that starts with that
buffer and then compares that to any other programs starting with the
buffer to remove any mismatching characters off the end. The result is
appended to the buffer.

This may be faster with a data structure but that seems overkill.
This commit is contained in:
willmcpherson2 2019-09-15 23:12:43 +10:00 • committed by Andreas Kling
parent 4463adc0ff
commit dccab569d2
2 changed files with 73 additions and 1 deletions
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4
Shell/LineEditor.h
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@ -1,7 +1,10 @@
#pragma once
#include <AK/String.h>
#include <AK/StringBuilder.h>
#include <AK/Vector.h>
#include <LibCore/CDirIterator.h>
#include <sys/stat.h>
class LineEditor {
public:
@ -16,6 +19,7 @@ public:
private:
void clear_line();
void append(const String&);
void tab_complete_first_token();
void vt_save_cursor();
void vt_restore_cursor();
void vt_clear_to_end_of_line();