0c3983b25a
. add bsd-style MLINKS to minix man set, restoring aliases (e.g. man add64 -> int64) . update daily cron script to run makewhatis and restore makewhatis in man Makefile (makedb), restores functionality of man -k . netbsd imports of man, mdocml, makewhatis, libutil, apropos . update man.conf with manpage locations, restoring man [-s] <section> . throws out some obsolete manpages
562 lines
10 KiB
C
562 lines
10 KiB
C
/* $Vendor-Id: out.c,v 1.30 2011/01/05 15:37:23 kristaps Exp $ */
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/*
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* Copyright (c) 2009, 2010 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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <sys/types.h>
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#include <assert.h>
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#include <ctype.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include "mandoc.h"
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#include "out.h"
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static void tblcalc_data(struct rofftbl *, struct roffcol *,
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const struct tbl *, const struct tbl_dat *);
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static void tblcalc_literal(struct rofftbl *, struct roffcol *,
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const struct tbl_dat *);
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static void tblcalc_number(struct rofftbl *, struct roffcol *,
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const struct tbl *, const struct tbl_dat *);
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/*
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* Convert a `scaling unit' to a consistent form, or fail. Scaling
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* units are documented in groff.7, mdoc.7, man.7.
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*/
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int
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a2roffsu(const char *src, struct roffsu *dst, enum roffscale def)
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{
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char buf[BUFSIZ], hasd;
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int i;
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enum roffscale unit;
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if ('\0' == *src)
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return(0);
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i = hasd = 0;
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switch (*src) {
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case ('+'):
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src++;
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break;
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case ('-'):
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buf[i++] = *src++;
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break;
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default:
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break;
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}
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if ('\0' == *src)
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return(0);
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while (i < BUFSIZ) {
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if ( ! isdigit((u_char)*src)) {
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if ('.' != *src)
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break;
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else if (hasd)
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break;
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else
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hasd = 1;
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}
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buf[i++] = *src++;
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}
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if (BUFSIZ == i || (*src && *(src + 1)))
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return(0);
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buf[i] = '\0';
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switch (*src) {
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case ('c'):
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unit = SCALE_CM;
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break;
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case ('i'):
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unit = SCALE_IN;
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break;
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case ('P'):
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unit = SCALE_PC;
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break;
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case ('p'):
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unit = SCALE_PT;
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break;
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case ('f'):
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unit = SCALE_FS;
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break;
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case ('v'):
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unit = SCALE_VS;
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break;
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case ('m'):
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unit = SCALE_EM;
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break;
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case ('\0'):
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if (SCALE_MAX == def)
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return(0);
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unit = SCALE_BU;
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break;
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case ('u'):
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unit = SCALE_BU;
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break;
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case ('M'):
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unit = SCALE_MM;
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break;
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case ('n'):
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unit = SCALE_EN;
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break;
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default:
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return(0);
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}
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/* FIXME: do this in the caller. */
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if ((dst->scale = atof(buf)) < 0)
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dst->scale = 0;
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dst->unit = unit;
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return(1);
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}
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/*
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* Correctly writes the time in nroff form, which differs from standard
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* form in that a space isn't printed in lieu of the extra %e field for
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* single-digit dates.
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*/
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void
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time2a(time_t t, char *dst, size_t sz)
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{
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struct tm tm;
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char buf[5];
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char *p;
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size_t nsz;
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assert(sz > 1);
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localtime_r(&t, &tm);
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p = dst;
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nsz = 0;
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dst[0] = '\0';
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if (0 == (nsz = strftime(p, sz, "%B ", &tm)))
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return;
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p += (int)nsz;
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sz -= nsz;
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if (0 == strftime(buf, sizeof(buf), "%e, ", &tm))
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return;
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nsz = strlcat(p, buf + (' ' == buf[0] ? 1 : 0), sz);
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if (nsz >= sz)
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return;
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p += (int)nsz;
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sz -= nsz;
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(void)strftime(p, sz, "%Y", &tm);
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}
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int
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a2roffdeco(enum roffdeco *d, const char **word, size_t *sz)
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{
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int i, j, lim;
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char term, c;
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const char *wp;
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enum roffdeco dd;
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*d = DECO_NONE;
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lim = i = 0;
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term = '\0';
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wp = *word;
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switch ((c = wp[i++])) {
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case ('('):
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*d = DECO_SPECIAL;
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lim = 2;
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break;
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case ('F'):
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/* FALLTHROUGH */
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case ('f'):
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*d = 'F' == c ? DECO_FFONT : DECO_FONT;
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switch (wp[i++]) {
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case ('('):
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lim = 2;
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break;
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case ('['):
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term = ']';
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break;
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case ('3'):
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/* FALLTHROUGH */
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case ('B'):
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*d = DECO_BOLD;
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return(i);
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case ('2'):
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/* FALLTHROUGH */
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case ('I'):
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*d = DECO_ITALIC;
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return(i);
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case ('P'):
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*d = DECO_PREVIOUS;
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return(i);
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case ('1'):
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/* FALLTHROUGH */
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case ('R'):
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*d = DECO_ROMAN;
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return(i);
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default:
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i--;
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lim = 1;
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break;
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}
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break;
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case ('k'):
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/* FALLTHROUGH */
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case ('M'):
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/* FALLTHROUGH */
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case ('m'):
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/* FALLTHROUGH */
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case ('*'):
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if ('*' == c)
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*d = DECO_RESERVED;
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switch (wp[i++]) {
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case ('('):
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lim = 2;
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break;
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case ('['):
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term = ']';
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break;
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default:
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i--;
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lim = 1;
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break;
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}
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break;
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case ('h'):
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/* FALLTHROUGH */
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case ('v'):
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/* FALLTHROUGH */
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case ('s'):
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j = 0;
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if ('+' == wp[i] || '-' == wp[i]) {
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i++;
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j = 1;
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}
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switch (wp[i++]) {
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case ('('):
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lim = 2;
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break;
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case ('['):
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term = ']';
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break;
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case ('\''):
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term = '\'';
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break;
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case ('0'):
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j = 1;
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/* FALLTHROUGH */
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default:
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i--;
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lim = 1;
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break;
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}
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if ('+' == wp[i] || '-' == wp[i]) {
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if (j)
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return(i);
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i++;
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}
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/* Handle embedded numerical subexp or escape. */
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if ('(' == wp[i]) {
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while (wp[i] && ')' != wp[i])
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if ('\\' == wp[i++]) {
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/* Handle embedded escape. */
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*word = &wp[i];
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i += a2roffdeco(&dd, word, sz);
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}
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if (')' == wp[i++])
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break;
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*d = DECO_NONE;
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return(i - 1);
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} else if ('\\' == wp[i]) {
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*word = &wp[++i];
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i += a2roffdeco(&dd, word, sz);
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}
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break;
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case ('['):
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*d = DECO_SPECIAL;
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term = ']';
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break;
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case ('c'):
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*d = DECO_NOSPACE;
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return(i);
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case ('z'):
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*d = DECO_NONE;
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if ('\\' == wp[i]) {
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*word = &wp[++i];
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return(i + a2roffdeco(&dd, word, sz));
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} else
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lim = 1;
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break;
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case ('o'):
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/* FALLTHROUGH */
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case ('w'):
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if ('\'' == wp[i++]) {
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term = '\'';
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break;
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}
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/* FALLTHROUGH */
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default:
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*d = DECO_SSPECIAL;
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i--;
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lim = 1;
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break;
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}
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assert(term || lim);
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*word = &wp[i];
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if (term) {
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j = i;
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while (wp[i] && wp[i] != term)
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i++;
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if ('\0' == wp[i]) {
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*d = DECO_NONE;
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return(i);
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}
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assert(i >= j);
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*sz = (size_t)(i - j);
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return(i + 1);
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}
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assert(lim > 0);
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*sz = (size_t)lim;
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for (j = 0; wp[i] && j < lim; j++)
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i++;
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if (j < lim)
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*d = DECO_NONE;
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return(i);
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}
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/*
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* Calculate the abstract widths and decimal positions of columns in a
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* table. This routine allocates the columns structures then runs over
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* all rows and cells in the table. The function pointers in "tbl" are
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* used for the actual width calculations.
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*/
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void
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tblcalc(struct rofftbl *tbl, const struct tbl_span *sp)
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{
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const struct tbl_dat *dp;
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const struct tbl_head *hp;
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struct roffcol *col;
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/*
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* Allocate the master column specifiers. These will hold the
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* widths and decimal positions for all cells in the column. It
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* must be freed and nullified by the caller.
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*/
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assert(NULL == tbl->cols);
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tbl->cols = calloc(sp->tbl->cols, sizeof(struct roffcol));
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hp = sp->head;
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for ( ; sp; sp = sp->next) {
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if (TBL_SPAN_DATA != sp->pos)
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continue;
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/*
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* Account for the data cells in the layout, matching it
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* to data cells in the data section.
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*/
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for (dp = sp->first; dp; dp = dp->next) {
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if (NULL == dp->layout)
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continue;
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col = &tbl->cols[dp->layout->head->ident];
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tblcalc_data(tbl, col, sp->tbl, dp);
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}
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}
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/*
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* Calculate width of the spanners. These get one space for a
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* vertical line, two for a double-vertical line.
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*/
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for ( ; hp; hp = hp->next) {
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col = &tbl->cols[hp->ident];
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switch (hp->pos) {
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case (TBL_HEAD_VERT):
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col->width = (*tbl->len)(1, tbl->arg);
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break;
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case (TBL_HEAD_DVERT):
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col->width = (*tbl->len)(2, tbl->arg);
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break;
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default:
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break;
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}
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}
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}
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static void
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tblcalc_data(struct rofftbl *tbl, struct roffcol *col,
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const struct tbl *tp, const struct tbl_dat *dp)
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{
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size_t sz;
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/* Branch down into data sub-types. */
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switch (dp->layout->pos) {
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case (TBL_CELL_HORIZ):
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/* FALLTHROUGH */
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case (TBL_CELL_DHORIZ):
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sz = (*tbl->len)(1, tbl->arg);
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if (col->width < sz)
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col->width = sz;
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break;
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case (TBL_CELL_LONG):
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/* FALLTHROUGH */
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case (TBL_CELL_CENTRE):
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/* FALLTHROUGH */
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case (TBL_CELL_LEFT):
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/* FALLTHROUGH */
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case (TBL_CELL_RIGHT):
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tblcalc_literal(tbl, col, dp);
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break;
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case (TBL_CELL_NUMBER):
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tblcalc_number(tbl, col, tp, dp);
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break;
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default:
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abort();
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/* NOTREACHED */
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}
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}
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static void
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tblcalc_literal(struct rofftbl *tbl, struct roffcol *col,
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const struct tbl_dat *dp)
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{
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size_t sz, bufsz, spsz;
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/*
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* Calculate our width and use the spacing, with a minimum
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* spacing dictated by position (centre, e.g,. gets a space on
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* either side, while right/left get a single adjacent space).
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*/
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sz = bufsz = spsz = 0;
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if (dp->string)
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sz = (*tbl->slen)(dp->string, tbl->arg);
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assert(dp->layout);
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switch (dp->layout->pos) {
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case (TBL_CELL_LONG):
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/* FALLTHROUGH */
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case (TBL_CELL_CENTRE):
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bufsz = (*tbl->len)(2, tbl->arg);
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break;
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default:
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bufsz = (*tbl->len)(1, tbl->arg);
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break;
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}
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if (dp->layout->spacing) {
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spsz = (*tbl->len)(dp->layout->spacing, tbl->arg);
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bufsz = bufsz > spsz ? bufsz : spsz;
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}
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sz += bufsz;
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if (col->width < sz)
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col->width = sz;
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}
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static void
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tblcalc_number(struct rofftbl *tbl, struct roffcol *col,
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const struct tbl *tp, const struct tbl_dat *dp)
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{
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int i;
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size_t sz, psz, ssz, d;
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char *cp;
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const char *str;
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char buf[2];
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/* TODO: use spacing modifier. */
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/*
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* First calculate number width and decimal place (last + 1 for
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* no-decimal numbers). If the stored decimal is subsequent
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* ours, make our size longer by that difference
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* (right-"shifting"); similarly, if ours is subsequent the
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* stored, then extend the stored size by the difference.
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* Finally, re-assign the stored values.
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*/
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str = "";
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if (dp->string)
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str = dp->string;
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sz = (*tbl->slen)(str, tbl->arg);
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buf[0] = tp->decimal;
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buf[1] = '\0';
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psz = (*tbl->slen)(buf, tbl->arg);
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if (NULL != (cp = strchr(str, tp->decimal))) {
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buf[1] = '\0';
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for (ssz = 0, i = 0; cp != &str[i]; i++) {
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buf[0] = str[i];
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ssz += (*tbl->slen)(buf, tbl->arg);
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}
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d = ssz + psz;
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} else
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d = sz + psz;
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/* Padding. */
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sz += (*tbl->len)(2, tbl->arg);
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d += (*tbl->len)(1, tbl->arg);
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/* Adjust the settings for this column. */
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if (col->decimal > d) {
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sz += col->decimal - d;
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d = col->decimal;
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} else
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col->width += d - col->decimal;
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if (sz > col->width)
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col->width = sz;
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if (d > col->decimal)
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col->decimal = d;
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}
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