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 * $Id: cut.h,v 10.10 2012/02/11 15:52:33 zy Exp $ 10 */ 11 12 typedef struct _texth TEXTH; /* TEXT list head structure. */ 13 TAILQ_HEAD(_texth, _text); 14 15 /* Cut buffers. */ 16 struct _cb { 17 SLIST_ENTRY(_cb) q; /* Linked list of cut buffers. */ 18 TEXTH textq[1]; /* Linked list of TEXT structures. */ 19 /* XXXX Needed ? Can non ascii-chars be cut buffer names ? */ 20 CHAR_T name; /* Cut buffer name. */ 21 size_t len; /* Total length of cut text. */ 22 23 #define CB_LMODE 0x01 /* Cut was in line mode. */ 24 u_int8_t flags; 25 }; 26 27 /* Lines/blocks of text. */ 28 struct _text { /* Text: a linked list of lines. */ 29 TAILQ_ENTRY(_text) q; /* Linked list of text structures. */ 30 CHAR_T *lb; /* Line buffer. */ 31 size_t lb_len; /* Line buffer length. */ 32 size_t len; /* Line length. */ 33 34 /* These fields are used by the vi text input routine. */ 35 recno_t lno; /* 1-N: file line. */ 36 37 #define ENTIRE_LINE ((size_t)-1) /* cno: end of the line. */ 38 size_t cno; /* 0-N: file character in line. */ 39 size_t ai; /* 0-N: autoindent bytes. */ 40 size_t insert; /* 0-N: bytes to insert (push). */ 41 size_t offset; /* 0-N: initial, unerasable chars. */ 42 size_t owrite; /* 0-N: chars to overwrite. */ 43 size_t R_erase; /* 0-N: 'R' erase count. */ 44 size_t sv_cno; /* 0-N: Saved line cursor. */ 45 size_t sv_len; /* 0-N: Saved line length. */ 46 47 /* 48 * These fields returns information from the vi text input routine. 49 * 50 * The termination condition. Note, this field is only valid if the 51 * text input routine returns success. 52 * TERM_BS: User backspaced over the prompt. 53 * TERM_CEDIT: User entered <edit-char>. 54 * TERM_CR: User entered <carriage-return>; no data. 55 * TERM_ESC: User entered <escape>; no data. 56 * TERM_OK: Data available. 57 * TERM_SEARCH: Incremental search. 58 */ 59 enum { 60 TERM_BS, TERM_CEDIT, TERM_CR, TERM_ESC, TERM_OK, TERM_SEARCH 61 } term; 62 }; 63 64 /* 65 * Get named buffer 'name'. 66 * Translate upper-case buffer names to lower-case buffer names. 67 */ 68 #define CBNAME(sp, cbp, nch) { \ 69 CHAR_T L__name; \ 70 L__name = isupper(nch) ? tolower(nch) : (nch); \ 71 SLIST_FOREACH(cbp, sp->gp->cutq, q) \ 72 if (cbp->name == L__name) \ 73 break; \ 74 } 75 76 /* Flags to the cut() routine. */ 77 #define CUT_LINEMODE 0x01 /* Cut in line mode. */ 78 #define CUT_NUMOPT 0x02 /* Numeric buffer: optional. */ 79 #define CUT_NUMREQ 0x04 /* Numeric buffer: required. */ 80