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30 lines
1.0 KiB
30 lines
1.0 KiB
3 years ago
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https://www.x.org/docs/xterm/
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# DCS - ESC P
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ESC P + Pt + ESC \
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Device Control String (DCS) xterm implements no DCS functions; Pt is ignored. Pt need not be printable characters.
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vim initialization using DCS
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vim -> src/term.c
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```c
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// 2. Check compatibility with xterm.
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// We move the cursor to (2, 0), print a test sequence and then query
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// the current cursor position. If the terminal properly handles
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// unknown DCS string and CSI sequence with intermediate byte, the test
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// sequence is ignored and the cursor does not move. If the terminal
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// handles test sequence incorrectly, a garbage string is displayed and
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// the cursor does move.
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MAY_WANT_TO_LOG_THIS;
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LOG_TR(("Sending xterm compatibility test sequence."));
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// Do this in the third row. Second row is used by ambiguous
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// character width check.
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term_windgoto(2, 0);
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// send the test DCS string.
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out_str((char_u *)"\033Pzz\033\\");
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// send the test CSI sequence with intermediate byte.
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out_str((char_u *)"\033[0%m");
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out_str(T_U7);
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termrequest_sent(&xcc_status);
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out_flush();
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did_send = TRUE;
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```
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