common/cut.h

   1 /*-
   2  * Copyright (c) 1991, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * %sccs.include.redist.c%
   6  *
   7  *      $Id: cut.h,v 8.11 1994/01/11 23:10:01 bostic Exp $ (Berkeley) $Date: 1994/01/11 23:10:01 $
   8  */
   9
  10 typedef struct _texth TEXTH;            /* TEXT list head structure. */
  11 CIRCLEQ_HEAD(_texth, _text);
  12
  13 /* Cut buffers. */
  14 struct _cb {
  15         LIST_ENTRY(_cb) q;              /* Linked list of cut buffers. */
  16         TEXTH    textq;                 /* Linked list of TEXT structures. */
  17         CHAR_T   name;                  /* Cut buffer name. */
  18         size_t   len;                   /* Total length of cut text. */
  19
  20 #define CB_LMODE        0x01            /* Cut was in line mode. */
  21         u_char   flags;
  22 };
  23
  24 /* Lines/blocks of text. */
  25 struct _text {                          /* Text: a linked list of lines. */
  26         CIRCLEQ_ENTRY(_text) q;         /* Linked list of text structures. */
  27         char    *lb;                    /* Line buffer. */
  28         size_t   lb_len;                /* Line buffer length. */
  29         size_t   len;                   /* Line length. */
  30
  31         /* These fields are used by the vi text input routine. */
  32         recno_t  lno;                   /* 1-N: line number. */
  33         size_t   ai;                    /* 0-N: autoindent bytes. */
  34         size_t   insert;                /* 0-N: bytes to insert (push). */
  35         size_t   offset;                /* 0-N: initial, unerasable bytes. */
  36         size_t   owrite;                /* 0-N: bytes to overwrite. */
  37
  38         /* These fields are used by the ex text input routine. */
  39         u_char  *wd;                    /* Width buffer. */
  40         size_t   wd_len;                /* Width buffer length. */
  41 };
  42
  43 /*
  44  * Get named buffer 'name'.
  45  * Translate upper-case buffer names to lower-case buffer names.
  46  */
  47 #define CBNAME(sp, cbp, name) {                                         \
  48         CHAR_T __name;                                                  \
  49         __name = isupper(name) ? tolower(name) : (name);                \
  50         for (cbp = sp->gp->cutq.lh_first;                               \
  51             cbp != NULL; cbp = cbp->q.le_next)                          \
  52                 if (cbp->name == __name)                                \
  53                         break;                                          \
  54 }
  55
  56 #define CUT_DELETE      0x01            /* Delete (rotate numeric buffers). */
  57 #define CUT_LINEMODE    0x02            /* Cut in line mode. */
  58 int      cut __P((SCR *, EXF *, CB *, CHAR_T *, MARK *, MARK *, int));
  59 int      delete __P((SCR *, EXF *, MARK *, MARK *, int));
  60 int      put __P((SCR *, EXF *, CB *, CHAR_T *, MARK *, MARK *, int));
  61
  62 void     text_free __P((TEXT *));
  63 TEXT    *text_init __P((SCR *, const char *, size_t, size_t));
  64 void     text_lfree __P((TEXTH *));