| 1 | /*- |
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| 2 | * Copyright (c) 1991, 1993, 1994 |
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| 3 | * The Regents of the University of California. All rights reserved. |
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| 4 | * Copyright (c) 1991, 1993, 1994, 1995, 1996 |
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| 5 | * Keith Bostic. All rights reserved. |
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| 6 | * |
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| 7 | * See the LICENSE file for redistribution information. |
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| 8 | * |
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| 9 | * @(#)cut.h 10.5 (Berkeley) 4/3/96 |
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| 10 | */ |
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| 11 | |
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| 12 | typedef struct _texth TEXTH; /* TEXT list head structure. */ |
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| 13 | CIRCLEQ_HEAD(_texth, _text); |
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| 14 | |
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| 15 | /* Cut buffers. */ |
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| 16 | struct _cb { |
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| 17 | LIST_ENTRY(_cb) q; /* Linked list of cut buffers. */ |
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| 18 | TEXTH textq; /* Linked list of TEXT structures. */ |
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| 19 | CHAR_T name; /* Cut buffer name. */ |
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| 20 | size_t len; /* Total length of cut text. */ |
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| 21 | |
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| 22 | #define CB_LMODE 0x01 /* Cut was in line mode. */ |
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| 23 | u_int8_t flags; |
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| 24 | }; |
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| 25 | |
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| 26 | /* Lines/blocks of text. */ |
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| 27 | struct _text { /* Text: a linked list of lines. */ |
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| 28 | CIRCLEQ_ENTRY(_text) q; /* Linked list of text structures. */ |
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| 29 | char *lb; /* Line buffer. */ |
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| 30 | size_t lb_len; /* Line buffer length. */ |
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| 31 | size_t len; /* Line length. */ |
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| 32 | |
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| 33 | /* These fields are used by the vi text input routine. */ |
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| 34 | recno_t lno; /* 1-N: file line. */ |
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| 35 | size_t cno; /* 0-N: file character in line. */ |
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| 36 | size_t ai; /* 0-N: autoindent bytes. */ |
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| 37 | size_t insert; /* 0-N: bytes to insert (push). */ |
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| 38 | size_t offset; /* 0-N: initial, unerasable chars. */ |
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| 39 | size_t owrite; /* 0-N: chars to overwrite. */ |
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| 40 | size_t R_erase; /* 0-N: 'R' erase count. */ |
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| 41 | size_t sv_cno; /* 0-N: Saved line cursor. */ |
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| 42 | size_t sv_len; /* 0-N: Saved line length. */ |
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| 43 | |
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| 44 | /* |
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| 45 | * These fields returns information from the vi text input routine. |
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| 46 | * |
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| 47 | * The termination condition. Note, this field is only valid if the |
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| 48 | * text input routine returns success. |
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| 49 | * TERM_BS: User backspaced over the prompt. |
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| 50 | * TERM_CEDIT: User entered <edit-char>. |
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| 51 | * TERM_CR: User entered <carriage-return>; no data. |
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| 52 | * TERM_ESC: User entered <escape>; no data. |
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| 53 | * TERM_OK: Data available. |
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| 54 | * TERM_SEARCH: Incremental search. |
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| 55 | */ |
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| 56 | enum { |
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| 57 | TERM_BS, TERM_CEDIT, TERM_CR, TERM_ESC, TERM_OK, TERM_SEARCH |
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| 58 | } term; |
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| 59 | }; |
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| 60 | |
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| 61 | /* |
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| 62 | * Get named buffer 'name'. |
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| 63 | * Translate upper-case buffer names to lower-case buffer names. |
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| 64 | */ |
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| 65 | #define CBNAME(sp, cbp, nch) { \ |
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| 66 | CHAR_T L__name; \ |
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| 67 | L__name = isupper(nch) ? tolower(nch) : (nch); \ |
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| 68 | for (cbp = sp->gp->cutq.lh_first; \ |
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| 69 | cbp != NULL; cbp = cbp->q.le_next) \ |
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| 70 | if (cbp->name == L__name) \ |
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| 71 | break; \ |
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| 72 | } |
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| 73 | |
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| 74 | /* Flags to the cut() routine. */ |
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| 75 | #define CUT_LINEMODE 0x01 /* Cut in line mode. */ |
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| 76 | #define CUT_NUMOPT 0x02 /* Numeric buffer: optional. */ |
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| 77 | #define CUT_NUMREQ 0x04 /* Numeric buffer: required. */ |
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