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Annotation of src/usr.bin/mandoc/term.h, Revision 1.70

1.70    ! schwarze    1: /*     $OpenBSD: term.h,v 1.69 2017/06/07 17:38:08 schwarze Exp $ */
1.1       kristaps    2: /*
1.28      schwarze    3:  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.63      schwarze    4:  * Copyright (c) 2011-2015, 2017 Ingo Schwarze <schwarze@openbsd.org>
1.1       kristaps    5:  *
                      6:  * Permission to use, copy, modify, and distribute this software for any
1.2       schwarze    7:  * purpose with or without fee is hereby granted, provided that the above
                      8:  * copyright notice and this permission notice appear in all copies.
1.1       kristaps    9:  *
1.56      schwarze   10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.2       schwarze   11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.56      schwarze   12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.2       schwarze   13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     14:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     15:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     16:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1       kristaps   17:  */
1.20      schwarze   18:
1.1       kristaps   19: enum   termenc {
1.30      schwarze   20:        TERMENC_ASCII,
                     21:        TERMENC_LOCALE,
                     22:        TERMENC_UTF8
1.1       kristaps   23: };
                     24:
1.20      schwarze   25: enum   termtype {
                     26:        TERMTYPE_CHAR,
1.26      schwarze   27:        TERMTYPE_PS,
                     28:        TERMTYPE_PDF
1.20      schwarze   29: };
                     30:
1.13      schwarze   31: enum   termfont {
                     32:        TERMFONT_NONE = 0,
                     33:        TERMFONT_BOLD,
1.24      schwarze   34:        TERMFONT_UNDER,
1.37      schwarze   35:        TERMFONT_BI,
1.24      schwarze   36:        TERMFONT__MAX
1.13      schwarze   37: };
1.17      schwarze   38:
1.63      schwarze   39: struct eqn;
1.56      schwarze   40: struct roff_meta;
1.63      schwarze   41: struct roff_node;
                     42: struct tbl_span;
1.51      schwarze   43: struct termp;
                     44:
1.56      schwarze   45: typedef void   (*term_margin)(struct termp *, const struct roff_meta *);
1.20      schwarze   46:
1.28      schwarze   47: struct termp_tbl {
                     48:        int               width;        /* width in fixed chars */
                     49:        int               decimal;      /* decimal point position */
                     50: };
                     51:
1.69      schwarze   52: struct termp_col {
                     53:        int              *buf;          /* Output buffer. */
                     54:        size_t            maxcols;      /* Allocated bytes in buf. */
1.70    ! schwarze   55:        size_t            col;          /* Byte in buf to be written. */
1.69      schwarze   56:        size_t            rmargin;      /* Current right margin. */
                     57:        size_t            offset;       /* Current left margin. */
                     58: };
                     59:
1.1       kristaps   60: struct termp {
1.69      schwarze   61:        struct rofftbl    tbl;          /* Table configuration. */
                     62:        struct termp_col *tcols;        /* Array of table columns. */
                     63:        struct termp_col *tcol;         /* Current table column. */
                     64:        size_t            maxtcol;      /* Allocated table columns. */
1.70    ! schwarze   65:        size_t            lasttcol;     /* Last column currently used. */
1.59      schwarze   66:        size_t            line;         /* Current output line number. */
1.33      schwarze   67:        size_t            defindent;    /* Default indent for text. */
1.28      schwarze   68:        size_t            defrmargin;   /* Right margin of the device. */
1.42      schwarze   69:        size_t            lastrmargin;  /* Right margin before the last ll. */
1.1       kristaps   70:        size_t            maxrmargin;   /* Max right margin. */
1.68      schwarze   71:        size_t            col;          /* Byte position in buf. */
                     72:        size_t            lastcol;      /* Bytes in buf. */
1.15      schwarze   73:        size_t            viscol;       /* Chars on current line. */
1.70    ! schwarze   74:        size_t            trailspace;   /* See term_flushln(). */
1.66      schwarze   75:        size_t            minbl;        /* Minimum blanks before next field. */
1.69      schwarze   76:        int               synopsisonly; /* Print the synopsis only. */
                     77:        int               mdocstyle;    /* Imitate mdoc(7) output. */
1.65      schwarze   78:        int               ti;           /* Temporary indent for one line. */
1.35      schwarze   79:        int               skipvsp;      /* Vertical space to skip. */
1.1       kristaps   80:        int               flags;
1.58      schwarze   81: #define        TERMP_SENTENCE   (1 << 0)       /* Space before a sentence. */
                     82: #define        TERMP_NOSPACE    (1 << 1)       /* No space before words. */
                     83: #define        TERMP_NONOSPACE  (1 << 2)       /* No space (no autounset). */
                     84: #define        TERMP_NBRWORD    (1 << 3)       /* Make next word nonbreaking. */
                     85: #define        TERMP_KEEP       (1 << 4)       /* Keep words together. */
                     86: #define        TERMP_PREKEEP    (1 << 5)       /* ...starting with the next one. */
                     87: #define        TERMP_BACKAFTER  (1 << 6)       /* Back up after next character. */
                     88: #define        TERMP_BACKBEFORE (1 << 7)       /* Back up before next character. */
1.40      schwarze   89: #define        TERMP_NOBREAK    (1 << 8)       /* See term_flushln(). */
1.60      schwarze   90: #define        TERMP_BRTRSP     (1 << 9)       /* See term_flushln(). */
                     91: #define        TERMP_BRIND      (1 << 10)      /* See term_flushln(). */
1.66      schwarze   92: #define        TERMP_HANG       (1 << 11)      /* See term_flushln(). */
                     93: #define        TERMP_NOPAD      (1 << 12)      /* See term_flushln(). */
1.60      schwarze   94: #define        TERMP_NOSPLIT    (1 << 13)      /* Do not break line before .An. */
                     95: #define        TERMP_SPLIT      (1 << 14)      /* Break line before .An. */
                     96: #define        TERMP_NONEWLINE  (1 << 15)      /* No line break in nofill mode. */
1.67      schwarze   97: #define        TERMP_BRNEVER    (1 << 16)      /* Don't even break at maxrmargin. */
                     98: #define        TERMP_NOBUF      (1 << 17)      /* Bypass output buffer. */
                     99: #define        TERMP_NEWMC      (1 << 18)      /* No .mc printed yet. */
                    100: #define        TERMP_ENDMC      (1 << 19)      /* Next break ends .mc mode. */
1.69      schwarze  101:        enum termtype     type;         /* Terminal, PS, or PDF. */
1.1       kristaps  102:        enum termenc      enc;          /* Type of encoding. */
1.13      schwarze  103:        enum termfont     fontl;        /* Last font set. */
1.53      schwarze  104:        enum termfont    *fontq;        /* Symmetric fonts. */
                    105:        int               fontsz;       /* Allocated size of font stack */
1.13      schwarze  106:        int               fonti;        /* Index of font stack. */
1.20      schwarze  107:        term_margin       headf;        /* invoked to print head */
                    108:        term_margin       footf;        /* invoked to print foot */
1.30      schwarze  109:        void            (*letter)(struct termp *, int);
1.20      schwarze  110:        void            (*begin)(struct termp *);
                    111:        void            (*end)(struct termp *);
                    112:        void            (*endline)(struct termp *);
                    113:        void            (*advance)(struct termp *, size_t);
1.57      schwarze  114:        void            (*setwidth)(struct termp *, int, int);
1.30      schwarze  115:        size_t          (*width)(const struct termp *, int);
1.57      schwarze  116:        int             (*hspan)(const struct termp *,
1.25      schwarze  117:                                const struct roffsu *);
1.20      schwarze  118:        const void       *argf;         /* arg for headf/footf */
1.67      schwarze  119:        const char       *mc;           /* Margin character. */
1.30      schwarze  120:        struct termp_ps  *ps;
1.1       kristaps  121: };
1.51      schwarze  122:
                    123:
1.63      schwarze  124: const char      *ascii_uc2str(int);
1.48      schwarze  125:
1.63      schwarze  126: void             roff_term_pre(struct termp *, const struct roff_node *);
1.1       kristaps  127:
1.31      schwarze  128: void             term_eqn(struct termp *, const struct eqn *);
1.28      schwarze  129: void             term_tbl(struct termp *, const struct tbl_span *);
1.20      schwarze  130: void             term_free(struct termp *);
1.1       kristaps  131: void             term_newln(struct termp *);
                    132: void             term_vspace(struct termp *);
                    133: void             term_word(struct termp *, const char *);
                    134: void             term_flushln(struct termp *);
1.45      schwarze  135: void             term_begin(struct termp *, term_margin,
1.56      schwarze  136:                        term_margin, const struct roff_meta *);
1.20      schwarze  137: void             term_end(struct termp *);
1.12      schwarze  138:
1.43      schwarze  139: void             term_setwidth(struct termp *, const char *);
1.54      schwarze  140: int              term_hspan(const struct termp *, const struct roffsu *);
                    141: int              term_vspan(const struct termp *, const struct roffsu *);
1.22      schwarze  142: size_t           term_strlen(const struct termp *, const char *);
                    143: size_t           term_len(const struct termp *, size_t);
1.64      schwarze  144:
                    145: void             term_tab_set(const struct termp *, const char *);
                    146: size_t           term_tab_next(size_t);
1.13      schwarze  147:
                    148: void             term_fontpush(struct termp *, enum termfont);
                    149: void             term_fontpop(struct termp *);
1.55      schwarze  150: void             term_fontpopq(struct termp *, int);
1.13      schwarze  151: void             term_fontrepl(struct termp *, enum termfont);
                    152: void             term_fontlast(struct termp *);