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terminal doc: Explain the "ECMA-48 Terminfo $TERM" comments.

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Kalle Olavi Niemitalo 2006-09-17 12:23:34 +03:00 committed by Kalle Olavi Niemitalo
parent 07cee4edee
commit c6f871b3af
1 changed files with 20 additions and 0 deletions
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20
src/terminal/kbd.c
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@ -692,6 +692,26 @@ decode_terminal_escape_sequence(struct itrm *itrm, struct interlink_event *ev)
fflush(stderr); fflush(stderr);
#endif #endif
/* The following information should be listed for each escape
* sequence recognized here:
*
* 1. Which control function ECMA-48 assigns to the sequence.
* Put parentheses around this if the control function
* seems unrelated to how ELinks actually treats the
* sequence. Write "private" if it is a control sequence
* reserved for private or experimental use in ECMA-48.
* (Those have a Final Byte in the range 0x70 to 0x7F,
* optionally preceded by a single Intermediate Byte 0x20.)
*
* 2. The capname used by Terminfo, if any. These should help
* when ELinks is eventually changed to read escape
* sequences from Terminfo (bug 96).
*
* 3. The $TERM identifier of some terminal that generates
* this escape sequence with the meaning expected by
* ELinks. Escape sequences with no known terminal may end
* up being removed from ELinks when bug 96 is fixed.
*/
switch (c) { /* ECMA-48 Terminfo $TERM */ switch (c) { /* ECMA-48 Terminfo $TERM */
case 0: return -1; /* ------- -------- ----- */ case 0: return -1; /* ------- -------- ----- */
case 'A': kbd.key = KBD_UP; break; /* CUU kcuu1 vt200 */ case 'A': kbd.key = KBD_UP; break; /* CUU kcuu1 vt200 */