term.h

   1 /*      $Id: term.h,v 1.55 2010/05/15 16:18:23 joerg Exp $ */
   2 /*
   3  * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
   4  *
   5  * Permission to use, copy, modify, and distribute this software for any
   6  * purpose with or without fee is hereby granted, provided that the above
   7  * copyright notice and this permission notice appear in all copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  16  */
  17 #ifndef TERM_H
  18 #define TERM_H
  19
  20 __BEGIN_DECLS
  21
  22 enum    termenc {
  23         TERMENC_ASCII
  24 };
  25
  26 enum    termfont {
  27         TERMFONT_NONE = 0,
  28         TERMFONT_BOLD,
  29         TERMFONT_UNDER
  30 };
  31
  32 #define TERM_MAXMARGIN    100000 /* FIXME */
  33
  34 struct  termp {
  35         size_t            defrmargin;   /* Right margin of the device.. */
  36         size_t            rmargin;      /* Current right margin. */
  37         size_t            maxrmargin;   /* Max right margin. */
  38         size_t            maxcols;      /* Max size of buf. */
  39         size_t            offset;       /* Margin offest. */
  40         size_t            col;          /* Bytes in buf. */
  41         int               overstep;     /* See termp_flushln(). */
  42         int               flags;
  43 #define TERMP_SENTENCE   (1 << 1)       /* Space before a sentence. */
  44 #define TERMP_NOSPACE    (1 << 2)       /* No space before words. */
  45 #define TERMP_NOLPAD     (1 << 3)       /* See term_flushln(). */
  46 #define TERMP_NOBREAK    (1 << 4)       /* See term_flushln(). */
  47 #define TERMP_IGNDELIM   (1 << 6)       /* Delims like regulars. */
  48 #define TERMP_NONOSPACE  (1 << 7)       /* No space (no autounset). */
  49 #define TERMP_DANGLE     (1 << 8)       /* See term_flushln(). */
  50 #define TERMP_HANG       (1 << 9)       /* See term_flushln(). */
  51 #define TERMP_TWOSPACE   (1 << 10)      /* See term_flushln(). */
  52 #define TERMP_NOSPLIT    (1 << 11)      /* See termp_an_pre/post(). */
  53 #define TERMP_SPLIT      (1 << 12)      /* See termp_an_pre/post(). */
  54 #define TERMP_ANPREC     (1 << 13)      /* See termp_an_pre(). */
  55         char             *buf;          /* Output buffer. */
  56         enum termenc      enc;          /* Type of encoding. */
  57         void             *symtab;       /* Encoded-symbol table. */
  58         enum termfont     fontl;        /* Last font set. */
  59         enum termfont     fontq[10];    /* Symmetric fonts. */
  60         int               fonti;        /* Index of font stack. */
  61 };
  62
  63 void              term_newln(struct termp *);
  64 void              term_vspace(struct termp *);
  65 void              term_word(struct termp *, const char *);
  66 void              term_flushln(struct termp *);
  67
  68 size_t            term_hspan(const struct roffsu *);
  69 size_t            term_vspan(const struct roffsu *);
  70
  71 enum termfont     term_fonttop(struct termp *);
  72 const void       *term_fontq(struct termp *);
  73 void              term_fontpush(struct termp *, enum termfont);
  74 void              term_fontpop(struct termp *);
  75 void              term_fontpopq(struct termp *, const void *);
  76 void              term_fontrepl(struct termp *, enum termfont);
  77 void              term_fontlast(struct termp *);
  78
  79 __END_DECLS
  80
  81 #endif /*!TERM_H*/