124 lines
4.2 KiB
C
124 lines
4.2 KiB
C
/* $Id: term.h,v 1.64 2010/06/19 20:46:28 kristaps Exp $ */
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/*
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* Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@bsd.lv>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef TERM_H
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#define TERM_H
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__BEGIN_DECLS
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struct termp;
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enum termenc {
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TERMENC_ASCII
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};
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enum termtype {
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TERMTYPE_CHAR,
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TERMTYPE_PS
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};
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enum termfont {
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TERMFONT_NONE = 0,
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TERMFONT_BOLD,
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TERMFONT_UNDER
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};
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#define TERM_MAXMARGIN 100000 /* FIXME */
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typedef void (*term_margin)(struct termp *, const void *);
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struct termp_ps {
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int psstate; /* state of ps output */
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#define PS_INLINE (1 << 0) /* we're in a word */
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#define PS_MARGINS (1 << 1) /* we're in the margins */
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size_t pscol; /* visible column */
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size_t psrow; /* visible row */
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char *psmarg; /* margin buf */
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size_t psmargsz; /* margin buf size */
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size_t psmargcur; /* current pos in margin buf */
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size_t pspage; /* current page */
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char last; /* character buffer */
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enum termfont lastf; /* last set font */
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};
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struct termp {
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enum termtype type;
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size_t defrmargin; /* Right margin of the device.. */
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size_t rmargin; /* Current right margin. */
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size_t maxrmargin; /* Max right margin. */
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size_t maxcols; /* Max size of buf. */
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size_t offset; /* Margin offest. */
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size_t tabwidth; /* Distance of tab positions. */
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size_t col; /* Bytes in buf. */
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size_t viscol; /* Chars on current line. */
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int overstep; /* See termp_flushln(). */
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int flags;
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#define TERMP_SENTENCE (1 << 1) /* Space before a sentence. */
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#define TERMP_NOSPACE (1 << 2) /* No space before words. */
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#define TERMP_NOLPAD (1 << 3) /* See term_flushln(). */
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#define TERMP_NOBREAK (1 << 4) /* See term_flushln(). */
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#define TERMP_IGNDELIM (1 << 6) /* Delims like regulars. */
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#define TERMP_NONOSPACE (1 << 7) /* No space (no autounset). */
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#define TERMP_DANGLE (1 << 8) /* See term_flushln(). */
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#define TERMP_HANG (1 << 9) /* See term_flushln(). */
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#define TERMP_TWOSPACE (1 << 10) /* See term_flushln(). */
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#define TERMP_NOSPLIT (1 << 11) /* See termp_an_pre/post(). */
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#define TERMP_SPLIT (1 << 12) /* See termp_an_pre/post(). */
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#define TERMP_ANPREC (1 << 13) /* See termp_an_pre(). */
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char *buf; /* Output buffer. */
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enum termenc enc; /* Type of encoding. */
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void *symtab; /* Encoded-symbol table. */
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enum termfont fontl; /* Last font set. */
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enum termfont fontq[10]; /* Symmetric fonts. */
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int fonti; /* Index of font stack. */
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term_margin headf; /* invoked to print head */
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term_margin footf; /* invoked to print foot */
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void (*letter)(struct termp *, char);
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void (*begin)(struct termp *);
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void (*end)(struct termp *);
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void (*endline)(struct termp *);
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void (*advance)(struct termp *, size_t);
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const void *argf; /* arg for headf/footf */
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union {
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struct termp_ps ps;
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} engine;
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};
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struct termp *term_alloc(enum termenc);
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void term_free(struct termp *);
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void term_newln(struct termp *);
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void term_vspace(struct termp *);
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void term_word(struct termp *, const char *);
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void term_flushln(struct termp *);
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void term_begin(struct termp *, term_margin,
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term_margin, const void *);
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void term_end(struct termp *);
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size_t term_hspan(const struct roffsu *);
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size_t term_vspan(const struct roffsu *);
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enum termfont term_fonttop(struct termp *);
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const void *term_fontq(struct termp *);
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void term_fontpush(struct termp *, enum termfont);
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void term_fontpop(struct termp *);
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void term_fontpopq(struct termp *, const void *);
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void term_fontrepl(struct termp *, enum termfont);
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void term_fontlast(struct termp *);
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__END_DECLS
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#endif /*!TERM_H*/
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