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Sync OpenBSD patchset 184:
Detect backspace by looking at termios VERASE and translate it into \177 (which matches screen's behaviour if not its termcap/terminfo entry). The terminfo kbs cap is often wrong or missing so it can't be used, and just assuming \177 may be wrong.
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@ -1,4 +1,4 @@
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/* $Id: mode-key.c,v 1.15 2009-07-23 23:29:53 tcunha Exp $ */
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/* $Id: mode-key.c,v 1.16 2009-07-28 22:37:02 tcunha Exp $ */
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/*
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* Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
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@ -70,7 +70,7 @@ mode_key_lookup_vi(struct mode_key_data *mdata, int key)
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mdata->flags &= ~MODEKEY_EDITMODE;
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return (MODEKEYCMD_NONE);
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case '\010':
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case '\177':
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case KEYC_BSPACE:
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return (MODEKEYCMD_BACKSPACE);
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case '\011':
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return (MODEKEYCMD_COMPLETE);
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@ -84,7 +84,7 @@ mode_key_lookup_vi(struct mode_key_data *mdata, int key)
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switch (key) {
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case '\010':
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case '\177':
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case KEYC_BSPACE:
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return (MODEKEYCMD_LEFT);
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case KEYC_DC:
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return (MODEKEYCMD_DELETE);
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@ -151,7 +151,7 @@ mode_key_lookup_emacs(struct mode_key_data *mdata, int key)
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{
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switch (key) {
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case '\010':
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case '\177':
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case KEYC_BSPACE:
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return (MODEKEYCMD_BACKSPACE);
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case '\004':
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case KEYC_DC:
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