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/* $OpenBSD: out.h,v 1.26 2022/09/11 09:12:47 schwarze Exp $ */
/*
* Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
* Copyright (c) 2014, 2017, 2018 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 AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR 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.
*
* Utilities for use by multiple mandoc(1) formatters.
*/
enum roffscale {
SCALE_CM, /* centimeters (c) */
SCALE_IN, /* inches (i) */
SCALE_PC, /* pica (P) */
SCALE_PT, /* points (p) */
SCALE_EM, /* ems (m) */
SCALE_MM, /* mini-ems (M) */
SCALE_EN, /* ens (n) */
SCALE_BU, /* default horizontal (u) */
SCALE_VS, /* default vertical (v) */
SCALE_FS, /* syn. for u (f) */
SCALE_MAX
};
struct roffcol {
size_t width; /* width of cell */
size_t nwidth; /* max. width of number in cell */
size_t decimal; /* decimal position in cell */
size_t spacing; /* spacing after the column */
int flags; /* layout flags, see tbl_cell */
};
struct roffsu {
enum roffscale unit;
double scale;
};
typedef size_t (*tbl_sulen)(const struct roffsu *, void *);
typedef size_t (*tbl_strlen)(const char *, void *);
typedef size_t (*tbl_len)(size_t, void *);
struct rofftbl {
tbl_sulen sulen; /* calculate scaling unit length */
tbl_strlen slen; /* calculate string length */
tbl_len len; /* produce width of empty space */
struct roffcol *cols; /* master column specifiers */
void *arg; /* passed to sulen, slen, and len */
};
struct tbl_span;
const char *a2roffsu(const char *, struct roffsu *, enum roffscale);
void tblcalc(struct rofftbl *,
const struct tbl_span *, size_t, size_t);
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