/* Id: term.h,v 1.131 2019/01/04 03:21:02 schwarze Exp */
/*
* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
* Copyright (c) 2011-2015, 2017, 2019 Ingo Schwarze <schwarze@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
enum termenc {
TERMENC_ASCII,
TERMENC_LOCALE,
TERMENC_UTF8
};
enum termtype {
TERMTYPE_CHAR,
TERMTYPE_PS,
TERMTYPE_PDF
};
enum termfont {
TERMFONT_NONE = 0,
TERMFONT_BOLD,
TERMFONT_UNDER,
TERMFONT_BI,
TERMFONT__MAX
};
struct eqn_box;
struct roff_meta;
struct roff_node;
struct tbl_span;
struct termp;
typedef void (*term_margin)(struct termp *, const struct roff_meta *);
struct termp_tbl {
int width; /* width in fixed chars */
int decimal; /* decimal point position */
};
struct termp_col {
int *buf; /* Output buffer. */
size_t maxcols; /* Allocated bytes in buf. */
size_t lastcol; /* Last byte in buf. */
size_t col; /* Byte in buf to be written. */
size_t rmargin; /* Current right margin. */
size_t offset; /* Current left margin. */
};
struct termp {
struct rofftbl tbl; /* Table configuration. */
struct termp_col *tcols; /* Array of table columns. */
struct termp_col *tcol; /* Current table column. */
size_t maxtcol; /* Allocated table columns. */
size_t lasttcol; /* Last column currently used. */
size_t line; /* Current output line number. */
size_t defindent; /* Default indent for text. */
size_t defrmargin; /* Right margin of the device. */
size_t lastrmargin; /* Right margin before the last ll. */
size_t maxrmargin; /* Max right margin. */
size_t col; /* Byte position in buf. */
size_t viscol; /* Chars on current line. */
size_t trailspace; /* See term_flushln(). */
size_t minbl; /* Minimum blanks before next field. */
int synopsisonly; /* Print the synopsis only. */
int mdocstyle; /* Imitate mdoc(7) output. */
int ti; /* Temporary indent for one line. */
int skipvsp; /* Vertical space to skip. */
int flags;
#define TERMP_SENTENCE (1 << 0) /* Space before a sentence. */
#define TERMP_NOSPACE (1 << 1) /* No space before words. */
#define TERMP_NONOSPACE (1 << 2) /* No space (no autounset). */
#define TERMP_NBRWORD (1 << 3) /* Make next word nonbreaking. */
#define TERMP_KEEP (1 << 4) /* Keep words together. */
#define TERMP_PREKEEP (1 << 5) /* ...starting with the next one. */
#define TERMP_BACKAFTER (1 << 6) /* Back up after next character. */
#define TERMP_BACKBEFORE (1 << 7) /* Back up before next character. */
#define TERMP_NOBREAK (1 << 8) /* See term_flushln(). */
#define TERMP_BRTRSP (1 << 9) /* See term_flushln(). */
#define TERMP_BRIND (1 << 10) /* See term_flushln(). */
#define TERMP_HANG (1 << 11) /* See term_flushln(). */
#define TERMP_NOPAD (1 << 12) /* See term_flushln(). */
#define TERMP_NOSPLIT (1 << 13) /* Do not break line before .An. */
#define TERMP_SPLIT (1 << 14) /* Break line before .An. */
#define TERMP_NONEWLINE (1 << 15) /* No line break in nofill mode. */
#define TERMP_BRNEVER (1 << 16) /* Don't even break at maxrmargin. */
#define TERMP_NOBUF (1 << 17) /* Bypass output buffer. */
#define TERMP_NEWMC (1 << 18) /* No .mc printed yet. */
#define TERMP_ENDMC (1 << 19) /* Next break ends .mc mode. */
#define TERMP_MULTICOL (1 << 20) /* Multiple column mode. */
#define TERMP_CENTER (1 << 21) /* Center output lines. */
#define TERMP_RIGHT (1 << 22) /* Adjust to the right margin. */
enum termtype type; /* Terminal, PS, or PDF. */
enum termenc enc; /* Type of encoding. */
enum termfont fontl; /* Last font set. */
enum termfont *fontq; /* Symmetric fonts. */
int fontsz; /* Allocated size of font stack */
int fonti; /* Index of font stack. */
term_margin headf; /* invoked to print head */
term_margin footf; /* invoked to print foot */
void (*letter)(struct termp *, int);
void (*begin)(struct termp *);
void (*end)(struct termp *);
void (*endline)(struct termp *);
void (*advance)(struct termp *, size_t);
void (*setwidth)(struct termp *, int, int);
size_t (*width)(const struct termp *, int);
int (*hspan)(const struct termp *,
const struct roffsu *);
const void *argf; /* arg for headf/footf */
const char *mc; /* Margin character. */
struct termp_ps *ps;
};
const char *ascii_uc2str(int);
void roff_term_pre(struct termp *, const struct roff_node *);
void term_eqn(struct termp *, const struct eqn_box *);
void term_tbl(struct termp *, const struct tbl_span *);
void term_free(struct termp *);
void term_setcol(struct termp *, size_t);
void term_newln(struct termp *);
void term_vspace(struct termp *);
void term_word(struct termp *, const char *);
void term_flushln(struct termp *);
void term_begin(struct termp *, term_margin,
term_margin, const struct roff_meta *);
void term_end(struct termp *);
void term_setwidth(struct termp *, const char *);
int term_hspan(const struct termp *, const struct roffsu *);
int term_hen(const struct termp *, const struct roffsu *);
int term_vspan(const struct termp *, const struct roffsu *);
size_t term_strlen(const struct termp *, const char *);
size_t term_len(const struct termp *, size_t);
void term_tab_set(const struct termp *, const char *);
void term_tab_iset(size_t);
size_t term_tab_next(size_t);
void term_fontpush(struct termp *, enum termfont);
void term_fontpop(struct termp *);
void term_fontpopq(struct termp *, int);
void term_fontrepl(struct termp *, enum termfont);
void term_fontlast(struct termp *);