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-rw-r--r--gpxe/src/hci/editstring.c192
1 files changed, 0 insertions, 192 deletions
diff --git a/gpxe/src/hci/editstring.c b/gpxe/src/hci/editstring.c
deleted file mode 100644
index 648f3389..00000000
--- a/gpxe/src/hci/editstring.c
+++ /dev/null
@@ -1,192 +0,0 @@
-/*
- * Copyright (C) 2006 Michael Brown <mbrown@fensystems.co.uk>.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-FILE_LICENCE ( GPL2_OR_LATER );
-
-#include <assert.h>
-#include <string.h>
-#include <gpxe/keys.h>
-#include <gpxe/editstring.h>
-
-/** @file
- *
- * Editable strings
- *
- */
-
-static void insert_delete ( struct edit_string *string, size_t delete_len,
- const char *insert_text )
- __attribute__ (( nonnull (1) ));
-static void insert_character ( struct edit_string *string,
- unsigned int character ) __nonnull;
-static void delete_character ( struct edit_string *string ) __nonnull;
-static void backspace ( struct edit_string *string ) __nonnull;
-static void kill_eol ( struct edit_string *string ) __nonnull;
-
-/**
- * Insert and/or delete text within an editable string
- *
- * @v string Editable string
- * @v delete_len Length of text to delete from current cursor position
- * @v insert_text Text to insert at current cursor position, or NULL
- */
-static void insert_delete ( struct edit_string *string, size_t delete_len,
- const char *insert_text ) {
- size_t old_len, max_delete_len, insert_len, max_insert_len, new_len;
-
- /* Calculate lengths */
- old_len = strlen ( string->buf );
- assert ( string->cursor <= old_len );
- max_delete_len = ( old_len - string->cursor );
- if ( delete_len > max_delete_len )
- delete_len = max_delete_len;
- insert_len = ( insert_text ? strlen ( insert_text ) : 0 );
- max_insert_len = ( ( string->len - 1 ) - ( old_len - delete_len ) );
- if ( insert_len > max_insert_len )
- insert_len = max_insert_len;
- new_len = ( old_len - delete_len + insert_len );
-
- /* Fill in edit history */
- string->mod_start = string->cursor;
- string->mod_end = ( ( new_len > old_len ) ? new_len : old_len );
-
- /* Move data following the cursor */
- memmove ( ( string->buf + string->cursor + insert_len ),
- ( string->buf + string->cursor + delete_len ),
- ( max_delete_len + 1 - delete_len ) );
-
- /* Copy inserted text to cursor position */
- memcpy ( ( string->buf + string->cursor ), insert_text, insert_len );
- string->cursor += insert_len;
-}
-
-/**
- * Insert character at current cursor position
- *
- * @v string Editable string
- * @v character Character to insert
- */
-static void insert_character ( struct edit_string *string,
- unsigned int character ) {
- char insert_text[2] = { character, '\0' };
- insert_delete ( string, 0, insert_text );
-}
-
-/**
- * Delete character at current cursor position
- *
- * @v string Editable string
- */
-static void delete_character ( struct edit_string *string ) {
- insert_delete ( string, 1, NULL );
-}
-
-/**
- * Delete character to left of current cursor position
- *
- * @v string Editable string
- */
-static void backspace ( struct edit_string *string ) {
- if ( string->cursor > 0 ) {
- string->cursor--;
- delete_character ( string );
- }
-}
-
-/**
- * Delete to end of line
- *
- * @v string Editable string
- */
-static void kill_eol ( struct edit_string *string ) {
- insert_delete ( string, ~( ( size_t ) 0 ), NULL );
-}
-
-/**
- * Edit editable string
- *
- * @v string Editable string
- * @v key Key pressed by user
- * @ret key Key returned to application, or zero
- *
- * Handles keypresses and updates the content of the editable string.
- * Basic line editing facilities (delete/insert/cursor) are supported.
- * If edit_string() understands and uses the keypress it will return
- * zero, otherwise it will return the original key.
- *
- * This function does not update the display in any way.
- *
- * The string's edit history will be updated to allow the caller to
- * efficiently bring the display into sync with the string content.
- */
-int edit_string ( struct edit_string *string, int key ) {
- int retval = 0;
- size_t len = strlen ( string->buf );
-
- /* Prepare edit history */
- string->last_cursor = string->cursor;
- string->mod_start = string->cursor;
- string->mod_end = string->cursor;
-
- /* Interpret key */
- if ( ( key >= 0x20 ) && ( key <= 0x7e ) ) {
- /* Printable character; insert at current position */
- insert_character ( string, key );
- } else switch ( key ) {
- case KEY_BACKSPACE:
- /* Backspace */
- backspace ( string );
- break;
- case KEY_DC:
- case CTRL_D:
- /* Delete character */
- delete_character ( string );
- break;
- case CTRL_K:
- /* Delete to end of line */
- kill_eol ( string );
- break;
- case KEY_HOME:
- case CTRL_A:
- /* Start of line */
- string->cursor = 0;
- break;
- case KEY_END:
- case CTRL_E:
- /* End of line */
- string->cursor = len;
- break;
- case KEY_LEFT:
- case CTRL_B:
- /* Cursor left */
- if ( string->cursor > 0 )
- string->cursor--;
- break;
- case KEY_RIGHT:
- case CTRL_F:
- /* Cursor right */
- if ( string->cursor < len )
- string->cursor++;
- break;
- default:
- retval = key;
- break;
- }
-
- return retval;
-}