| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | #include "parse.h" | ||
| 2 | #include "rxvt.h" | ||
| 3 | |||
| 4 | /* | ||
| 5 | rxvt uses some key codes that differ from the ones used by xterm. | ||
| 6 | They don't conflict or overlap with the xterm codes, but specifically | ||
| 7 | aren't handled by term_parse_sequence() because some of them violate | ||
| 8 | the ECMA-48 spec (notably, the ones ending with '$', which isn't a | ||
| 9 | valid final byte). | ||
| 10 | */ | ||
| 11 | 232 | ssize_t rxvt_parse_key(const char *buf, size_t length, KeyCode *k) | |
| 12 | { | ||
| 13 | 232 | KeyCode extra_mods = 0; | |
| 14 | 232 | size_t extra_bytes = 0; | |
| 15 |
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|
232 | if (length < 2 || buf[0] != '\033') { |
| 16 | 49 | goto generic; | |
| 17 | } | ||
| 18 | |||
| 19 | 183 | KeyCode mods; | |
| 20 |
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183 | switch (buf[1]) { |
| 21 | 5 | case 'O': | |
| 22 | 5 | mods = MOD_CTRL; | |
| 23 | 5 | goto final; | |
| 24 | case '[': | ||
| 25 | mods = MOD_SHIFT; | ||
| 26 | 84 | final: | |
| 27 |
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|
84 | if (length < 3) { |
| 28 | return TPARSE_PARTIAL_MATCH; | ||
| 29 | } | ||
| 30 |
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|
58 | switch (buf[2]) { |
| 31 | 8 | case 'a': // Up | |
| 32 | case 'b': // Down | ||
| 33 | case 'c': // Right | ||
| 34 | case 'd': // Left | ||
| 35 | 8 | *k = mods | (KEY_UP + (buf[2] - 'a')); | |
| 36 | 8 | return 3; | |
| 37 | } | ||
| 38 | break; | ||
| 39 | 99 | case '\033': | |
| 40 | 99 | extra_mods = MOD_META; | |
| 41 | 99 | extra_bytes = 1; | |
| 42 | 99 | buf++; | |
| 43 | 99 | length--; | |
| 44 | 99 | break; | |
| 45 | } | ||
| 46 | |||
| 47 |
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|
149 | if (length < 4 || buf[1] != '[') { |
| 48 | 99 | goto generic; | |
| 49 | } | ||
| 50 | |||
| 51 | 50 | KeyCode key; | |
| 52 | 50 | ssize_t n; | |
| 53 |
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|
50 | switch (buf[3]) { |
| 54 | 12 | case '~': key = 0; break; | |
| 55 | 12 | case '^': key = MOD_CTRL; break; | |
| 56 | 12 | case '$': key = MOD_SHIFT; break; | |
| 57 | 12 | case '@': key = MOD_SHIFT | MOD_CTRL; break; | |
| 58 | 2 | default: goto generic; | |
| 59 | } | ||
| 60 | |||
| 61 |
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|
48 | switch (buf[2]) { |
| 62 | 8 | case '2': key |= KEY_INSERT; break; | |
| 63 | 8 | case '3': key |= KEY_DELETE; break; | |
| 64 | 8 | case '5': key |= KEY_PAGE_UP; break; | |
| 65 | 8 | case '6': key |= KEY_PAGE_DOWN; break; | |
| 66 | 8 | case '7': key |= KEY_HOME; break; | |
| 67 | 8 | case '8': key |= KEY_END; break; | |
| 68 | ✗ | default: goto generic; | |
| 69 | } | ||
| 70 | |||
| 71 | 48 | *k = key | extra_mods; | |
| 72 | 48 | return 4 + extra_bytes; | |
| 73 | |||
| 74 | 150 | generic: | |
| 75 | 150 | n = term_parse_sequence(buf, length, &key); | |
| 76 |
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|
150 | if (n <= 0) { |
| 77 | return n; | ||
| 78 | } | ||
| 79 |
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2 | if (unlikely(key == KEY_IGNORE && extra_mods)) { |
| 80 | 1 | extra_mods = 0; | |
| 81 | } | ||
| 82 | 2 | *k = key | extra_mods; | |
| 83 | 2 | return n + extra_bytes; | |
| 84 | } | ||
| 85 |