1 /*- 2 * Copyright (c) 1991, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * Copyright (c) 1991, 1993, 1994, 1995, 1996 5 * Keith Bostic. All rights reserved. 6 * 7 * See the LICENSE file for redistribution information. 8 */ 9 10 typedef struct _texth TEXTH; /* TEXT list head structure. */ 11 TAILQ_HEAD(_texth, _text); 12 13 /* Cut buffers. */ 14 struct _cb { 15 SLIST_ENTRY(_cb) q; /* Linked list of cut buffers. */ 16 TEXTH textq[1]; /* Linked list of TEXT structures. */ 17 /* XXXX Needed ? Can non ascii-chars be cut buffer names ? */ 18 CHAR_T name; /* Cut buffer name. */ 19 size_t len; /* Total length of cut text. */ 20 21 #define CB_LMODE 0x01 /* Cut was in line mode. */ 22 u_int8_t flags; 23 }; 24 25 /* Lines/blocks of text. */ 26 struct _text { /* Text: a linked list of lines. */ 27 TAILQ_ENTRY(_text) q; /* Linked list of text structures. */ 28 CHAR_T *lb; /* Line buffer. */ 29 size_t lb_len; /* Line buffer length. */ 30 size_t len; /* Line length. */ 31 32 /* These fields are used by the vi text input routine. */ 33 recno_t lno; /* 1-N: file line. */ 34 35 #define ENTIRE_LINE ((size_t)-1) /* cno: end of the line. */ 36 size_t cno; /* 0-N: file character in line. */ 37 size_t ai; /* 0-N: autoindent bytes. */ 38 size_t insert; /* 0-N: bytes to insert (push). */ 39 size_t offset; /* 0-N: initial, unerasable chars. */ 40 size_t owrite; /* 0-N: chars to overwrite. */ 41 size_t R_erase; /* 0-N: 'R' erase count. */ 42 size_t sv_cno; /* 0-N: Saved line cursor. */ 43 size_t sv_len; /* 0-N: Saved line length. */ 44 45 /* 46 * These fields returns information from the vi text input routine. 47 * 48 * The termination condition. Note, this field is only valid if the 49 * text input routine returns success. 50 * TERM_BS: User backspaced over the prompt. 51 * TERM_CEDIT: User entered <edit-char>. 52 * TERM_CR: User entered <carriage-return>; no data. 53 * TERM_ESC: User entered <escape>; no data. 54 * TERM_OK: Data available. 55 * TERM_SEARCH: Incremental search. 56 */ 57 enum { 58 TERM_BS, TERM_CEDIT, TERM_CR, TERM_ESC, TERM_OK, TERM_SEARCH 59 } term; 60 }; 61 62 /* 63 * Get named buffer 'name'. 64 * Translate upper-case buffer names to lower-case buffer names. 65 */ 66 #define CBNAME(sp, cbp, nch) do { \ 67 CHAR_T L__name; \ 68 L__name = isupper(nch) ? tolower(nch) : (nch); \ 69 SLIST_FOREACH(cbp, sp->gp->cutq, q) \ 70 if (cbp->name == L__name) \ 71 break; \ 72 } while (0) 73 74 /* Flags to the cut() routine. */ 75 #define CUT_LINEMODE 0x01 /* Cut in line mode. */ 76 #define CUT_NUMOPT 0x02 /* Numeric buffer: optional. */ 77 #define CUT_NUMREQ 0x04 /* Numeric buffer: required. */ 78