1/* $Id: term.h,v 1.130 2017/07/08 14:51:05 schwarze Exp $ */ 2/* 3 * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> 4 * Copyright (c) 2011-2015, 2017 Ingo Schwarze <schwarze@openbsd.org> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR 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. 17 */ 18 19enum termenc { 20 TERMENC_ASCII, 21 TERMENC_LOCALE, 22 TERMENC_UTF8 23}; 24 25enum termtype { 26 TERMTYPE_CHAR, 27 TERMTYPE_PS, 28 TERMTYPE_PDF 29}; 30 31enum termfont { 32 TERMFONT_NONE = 0, 33 TERMFONT_BOLD, 34 TERMFONT_UNDER, 35 TERMFONT_BI, 36 TERMFONT__MAX 37}; 38 39struct eqn_box; 40struct roff_meta; 41struct roff_node; 42struct tbl_span; 43struct termp; 44 45typedef void (*term_margin)(struct termp *, const struct roff_meta *); 46 47struct termp_tbl { 48 int width; /* width in fixed chars */ 49 int decimal; /* decimal point position */ 50}; 51 52struct termp_col { 53 int *buf; /* Output buffer. */ 54 size_t maxcols; /* Allocated bytes in buf. */ 55 size_t lastcol; /* Last byte in buf. */ 56 size_t col; /* Byte in buf to be written. */ 57 size_t rmargin; /* Current right margin. */ 58 size_t offset; /* Current left margin. */ 59}; 60 61struct termp { 62 struct rofftbl tbl; /* Table configuration. */ 63 struct termp_col *tcols; /* Array of table columns. */ 64 struct termp_col *tcol; /* Current table column. */ 65 size_t maxtcol; /* Allocated table columns. */ 66 size_t lasttcol; /* Last column currently used. */ 67 size_t line; /* Current output line number. */ 68 size_t defindent; /* Default indent for text. */ 69 size_t defrmargin; /* Right margin of the device. */ 70 size_t lastrmargin; /* Right margin before the last ll. */ 71 size_t maxrmargin; /* Max right margin. */ 72 size_t col; /* Byte position in buf. */ 73 size_t viscol; /* Chars on current line. */ 74 size_t trailspace; /* See term_flushln(). */ 75 size_t minbl; /* Minimum blanks before next field. */ 76 int synopsisonly; /* Print the synopsis only. */ 77 int mdocstyle; /* Imitate mdoc(7) output. */ 78 int ti; /* Temporary indent for one line. */ 79 int skipvsp; /* Vertical space to skip. */ 80 int flags; 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. */ 89#define TERMP_NOBREAK (1 << 8) /* See term_flushln(). */ 90#define TERMP_BRTRSP (1 << 9) /* See term_flushln(). */ 91#define TERMP_BRIND (1 << 10) /* See term_flushln(). */ 92#define TERMP_HANG (1 << 11) /* See term_flushln(). */ 93#define TERMP_NOPAD (1 << 12) /* See term_flushln(). */ 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. */ 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. */ 101#define TERMP_MULTICOL (1 << 20) /* Multiple column mode. */ 102 enum termtype type; /* Terminal, PS, or PDF. */ 103 enum termenc enc; /* Type of encoding. */ 104 enum termfont fontl; /* Last font set. */ 105 enum termfont *fontq; /* Symmetric fonts. */ 106 int fontsz; /* Allocated size of font stack */ 107 int fonti; /* Index of font stack. */ 108 term_margin headf; /* invoked to print head */ 109 term_margin footf; /* invoked to print foot */ 110 void (*letter)(struct termp *, int); 111 void (*begin)(struct termp *); 112 void (*end)(struct termp *); 113 void (*endline)(struct termp *); 114 void (*advance)(struct termp *, size_t); 115 void (*setwidth)(struct termp *, int, int); 116 size_t (*width)(const struct termp *, int); 117 int (*hspan)(const struct termp *, 118 const struct roffsu *); 119 const void *argf; /* arg for headf/footf */ 120 const char *mc; /* Margin character. */ 121 struct termp_ps *ps; 122}; 123 124 125const char *ascii_uc2str(int); 126 127void roff_term_pre(struct termp *, const struct roff_node *); 128 129void term_eqn(struct termp *, const struct eqn_box *); 130void term_tbl(struct termp *, const struct tbl_span *); 131void term_free(struct termp *); 132void term_setcol(struct termp *, size_t); 133void term_newln(struct termp *); 134void term_vspace(struct termp *); 135void term_word(struct termp *, const char *); 136void term_flushln(struct termp *); 137void term_begin(struct termp *, term_margin, 138 term_margin, const struct roff_meta *); 139void term_end(struct termp *); 140 141void term_setwidth(struct termp *, const char *); 142int term_hspan(const struct termp *, const struct roffsu *); 143int term_hen(const struct termp *, const struct roffsu *); 144int term_vspan(const struct termp *, const struct roffsu *); 145size_t term_strlen(const struct termp *, const char *); 146size_t term_len(const struct termp *, size_t); 147 148void term_tab_set(const struct termp *, const char *); 149void term_tab_iset(size_t); 150size_t term_tab_next(size_t); 151 152void term_fontpush(struct termp *, enum termfont); 153void term_fontpop(struct termp *); 154void term_fontpopq(struct termp *, int); 155void term_fontrepl(struct termp *, enum termfont); 156void term_fontlast(struct termp *); 157