=================================================================== RCS file: /cvs/mandoc/term.c,v retrieving revision 1.1 retrieving revision 1.201 diff -u -p -r1.1 -r1.201 --- mandoc/term.c 2009/02/20 11:04:23 1.1 +++ mandoc/term.c 2011/09/21 09:57:13 1.201 @@ -1,360 +1,736 @@ -/* $Id: term.c,v 1.1 2009/02/20 11:04:23 kristaps Exp $ */ +/* $Id: term.c,v 1.201 2011/09/21 09:57:13 schwarze Exp $ */ /* - * Copyright (c) 2008 Kristaps Dzonsons + * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons + * Copyright (c) 2010, 2011 Ingo Schwarze * * 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. + * 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. + * 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. */ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include + #include -#include -#include -#include +#include +#include #include +#include #include -#include -#include -#include "mdoc.h" +#include "mandoc.h" +#include "out.h" +#include "term.h" +#include "main.h" +static void adjbuf(struct termp *p, int); +static void bufferc(struct termp *, char); +static void encode(struct termp *, const char *, size_t); +static void encode1(struct termp *, int); -static int termprint_r(size_t, size_t, - const struct mdoc_node *); -static void termprint_head(size_t, - const struct mdoc_meta *); -static void termprint_tail(size_t, - const struct mdoc_meta *); +void +term_free(struct termp *p) +{ -static char *arch2a(enum mdoc_arch); -static char *vol2a(enum mdoc_vol); -static char *msec2a(enum mdoc_msec); + if (p->buf) + free(p->buf); + if (p->symtab) + mchars_free(p->symtab); -static size_t ttitle2a(char *, enum mdoc_vol, enum mdoc_msec, - enum mdoc_arch, size_t); + free(p); +} -static char * -arch2a(enum mdoc_arch arch) +void +term_begin(struct termp *p, term_margin head, + term_margin foot, const void *arg) { - switch (arch) { - case (ARCH_alpha): - return("Alpha"); - case (ARCH_amd64): - return("AMD64"); - case (ARCH_amiga): - return("Amiga"); - case (ARCH_arc): - return("ARC"); - case (ARCH_arm): - return("ARM"); - case (ARCH_armish): - return("ARMISH"); - case (ARCH_aviion): - return("AViion"); - case (ARCH_hp300): - return("HP300"); - case (ARCH_hppa): - return("HPPA"); - case (ARCH_hppa64): - return("HPPA64"); - case (ARCH_i386): - return("i386"); - case (ARCH_landisk): - return("LANDISK"); - case (ARCH_luna88k): - return("Luna88k"); - case (ARCH_mac68k): - return("Mac68k"); - case (ARCH_macppc): - return("MacPPC"); - case (ARCH_mvme68k): - return("MVME68k"); - case (ARCH_mvme88k): - return("MVME88k"); - case (ARCH_mvmeppc): - return("MVMEPPC"); - case (ARCH_pmax): - return("PMAX"); - case (ARCH_sgi): - return("SGI"); - case (ARCH_socppc): - return("SOCPPC"); - case (ARCH_sparc): - return("SPARC"); - case (ARCH_sparc64): - return("SPARC64"); - case (ARCH_sun3): - return("Sun3"); - case (ARCH_vax): - return("VAX"); - case (ARCH_zaurus): - return("Zaurus"); - default: - break; + p->headf = head; + p->footf = foot; + p->argf = arg; + (*p->begin)(p); +} + + +void +term_end(struct termp *p) +{ + + (*p->end)(p); +} + +/* + * Flush a line of text. A "line" is loosely defined as being something + * that should be followed by a newline, regardless of whether it's + * broken apart by newlines getting there. A line can also be a + * fragment of a columnar list (`Bl -tag' or `Bl -column'), which does + * not have a trailing newline. + * + * The following flags may be specified: + * + * - TERMP_NOBREAK: this is the most important and is used when making + * columns. In short: don't print a newline and instead expect the + * next call to do the padding up to the start of the next column. + * + * - TERMP_TWOSPACE: make sure there is room for at least two space + * characters of padding. Otherwise, rather break the line. + * + * - TERMP_DANGLE: don't newline when TERMP_NOBREAK is specified and + * the line is overrun, and don't pad-right if it's underrun. + * + * - TERMP_HANG: like TERMP_DANGLE, but doesn't newline when + * overrunning, instead save the position and continue at that point + * when the next invocation. + * + * In-line line breaking: + * + * If TERMP_NOBREAK is specified and the line overruns the right + * margin, it will break and pad-right to the right margin after + * writing. If maxrmargin is violated, it will break and continue + * writing from the right-margin, which will lead to the above scenario + * upon exit. Otherwise, the line will break at the right margin. + */ +void +term_flushln(struct termp *p) +{ + int i; /* current input position in p->buf */ + size_t vis; /* current visual position on output */ + size_t vbl; /* number of blanks to prepend to output */ + size_t vend; /* end of word visual position on output */ + size_t bp; /* visual right border position */ + size_t dv; /* temporary for visual pos calculations */ + int j; /* temporary loop index for p->buf */ + int jhy; /* last hyph before overflow w/r/t j */ + size_t maxvis; /* output position of visible boundary */ + size_t mmax; /* used in calculating bp */ + + /* + * First, establish the maximum columns of "visible" content. + * This is usually the difference between the right-margin and + * an indentation, but can be, for tagged lists or columns, a + * small set of values. + */ + assert (p->rmargin >= p->offset); + dv = p->rmargin - p->offset; + maxvis = (int)dv > p->overstep ? dv - (size_t)p->overstep : 0; + dv = p->maxrmargin - p->offset; + mmax = (int)dv > p->overstep ? dv - (size_t)p->overstep : 0; + + bp = TERMP_NOBREAK & p->flags ? mmax : maxvis; + + /* + * Calculate the required amount of padding. + */ + vbl = p->offset + p->overstep > p->viscol ? + p->offset + p->overstep - p->viscol : 0; + + vis = vend = 0; + i = 0; + + while (i < p->col) { + /* + * Handle literal tab characters: collapse all + * subsequent tabs into a single huge set of spaces. + */ + while (i < p->col && '\t' == p->buf[i]) { + vend = (vis / p->tabwidth + 1) * p->tabwidth; + vbl += vend - vis; + vis = vend; + i++; + } + + /* + * Count up visible word characters. Control sequences + * (starting with the CSI) aren't counted. A space + * generates a non-printing word, which is valid (the + * space is printed according to regular spacing rules). + */ + + for (j = i, jhy = 0; j < p->col; j++) { + if ((j && ' ' == p->buf[j]) || '\t' == p->buf[j]) + break; + + /* Back over the the last printed character. */ + if (8 == p->buf[j]) { + assert(j); + vend -= (*p->width)(p, p->buf[j - 1]); + continue; + } + + /* Regular word. */ + /* Break at the hyphen point if we overrun. */ + if (vend > vis && vend < bp && + ASCII_HYPH == p->buf[j]) + jhy = j; + + vend += (*p->width)(p, p->buf[j]); + } + + /* + * Find out whether we would exceed the right margin. + * If so, break to the next line. + */ + if (vend > bp && 0 == jhy && vis > 0) { + vend -= vis; + (*p->endline)(p); + p->viscol = 0; + if (TERMP_NOBREAK & p->flags) { + vbl = p->rmargin; + vend += p->rmargin - p->offset; + } else + vbl = p->offset; + + /* Remove the p->overstep width. */ + + bp += (size_t)p->overstep; + p->overstep = 0; + } + + /* Write out the [remaining] word. */ + for ( ; i < p->col; i++) { + if (vend > bp && jhy > 0 && i > jhy) + break; + if ('\t' == p->buf[i]) + break; + if (' ' == p->buf[i]) { + j = i; + while (' ' == p->buf[i]) + i++; + dv = (size_t)(i - j) * (*p->width)(p, ' '); + vbl += dv; + vend += dv; + break; + } + if (ASCII_NBRSP == p->buf[i]) { + vbl += (*p->width)(p, ' '); + continue; + } + + /* + * Now we definitely know there will be + * printable characters to output, + * so write preceding white space now. + */ + if (vbl) { + (*p->advance)(p, vbl); + p->viscol += vbl; + vbl = 0; + } + + if (ASCII_HYPH == p->buf[i]) { + (*p->letter)(p, '-'); + p->viscol += (*p->width)(p, '-'); + continue; + } + + (*p->letter)(p, p->buf[i]); + if (8 == p->buf[i]) + p->viscol -= (*p->width)(p, p->buf[i-1]); + else + p->viscol += (*p->width)(p, p->buf[i]); + } + vis = vend; } - return(NULL); + /* + * If there was trailing white space, it was not printed; + * so reset the cursor position accordingly. + */ + if (vis) + vis -= vbl; + + p->col = 0; + p->overstep = 0; + + if ( ! (TERMP_NOBREAK & p->flags)) { + p->viscol = 0; + (*p->endline)(p); + return; + } + + if (TERMP_HANG & p->flags) { + /* We need one blank after the tag. */ + p->overstep = (int)(vis - maxvis + (*p->width)(p, ' ')); + + /* + * Behave exactly the same way as groff: + * If we have overstepped the margin, temporarily move + * it to the right and flag the rest of the line to be + * shorter. + * If we landed right at the margin, be happy. + * If we are one step before the margin, temporarily + * move it one step LEFT and flag the rest of the line + * to be longer. + */ + if (p->overstep < -1) + p->overstep = 0; + return; + + } else if (TERMP_DANGLE & p->flags) + return; + + /* If the column was overrun, break the line. */ + if (maxvis <= vis + + ((TERMP_TWOSPACE & p->flags) ? (*p->width)(p, ' ') : 0)) { + (*p->endline)(p); + p->viscol = 0; + } } -static char * -vol2a(enum mdoc_vol vol) +/* + * A newline only breaks an existing line; it won't assert vertical + * space. All data in the output buffer is flushed prior to the newline + * assertion. + */ +void +term_newln(struct termp *p) { - switch (vol) { - case (VOL_AMD): - return("OpenBSD Ancestral Manual Documents"); - case (VOL_IND): - return("OpenBSD Manual Master Index"); - case (VOL_KM): - return("OpenBSD Kernel Manual"); - case (VOL_LOCAL): - return("OpenBSD Local Manual"); - case (VOL_PRM): - return("OpenBSD Programmer's Manual"); - case (VOL_PS1): - return("OpenBSD Programmer's Supplementary Documents"); - case (VOL_SMM): - return("OpenBSD System Manager's Manual"); - case (VOL_URM): - return("OpenBSD Reference Manual"); - case (VOL_USD): - return("OpenBSD User's Supplementary Documents"); - default: - break; - } + p->flags |= TERMP_NOSPACE; + if (p->col || p->viscol) + term_flushln(p); +} - return(NULL); + +/* + * Asserts a vertical space (a full, empty line-break between lines). + * Note that if used twice, this will cause two blank spaces and so on. + * All data in the output buffer is flushed prior to the newline + * assertion. + */ +void +term_vspace(struct termp *p) +{ + + term_newln(p); + p->viscol = 0; + (*p->endline)(p); } +void +term_fontlast(struct termp *p) +{ + enum termfont f; -static char * -msec2a(enum mdoc_msec msec) + f = p->fontl; + p->fontl = p->fontq[p->fonti]; + p->fontq[p->fonti] = f; +} + + +void +term_fontrepl(struct termp *p, enum termfont f) { - switch (msec) { - case(MSEC_1): - return("1"); - case(MSEC_2): - return("2"); - case(MSEC_3): - return("3"); - case(MSEC_3f): - return("3f"); - case(MSEC_3p): - return("3p"); - case(MSEC_4): - return("4"); - case(MSEC_5): - return("5"); - case(MSEC_6): - return("6"); - case(MSEC_7): - return("7"); - case(MSEC_8): - return("8"); - case(MSEC_9): - return("9"); - case(MSEC_X11): - return("X11"); - case(MSEC_X11R6): - return("X11R6"); - case(MSEC_local): - return("local"); - case(MSEC_n): - return("n"); - case(MSEC_unass): - /* FALLTHROUGH */ - case(MSEC_draft): - return("draft"); - case(MSEC_paper): - return("paper"); - default: - break; - } - return(NULL); + p->fontl = p->fontq[p->fonti]; + p->fontq[p->fonti] = f; } -static size_t -ttitle2a(char *dst, enum mdoc_vol vol, enum mdoc_msec msec, - enum mdoc_arch arch, size_t sz) +void +term_fontpush(struct termp *p, enum termfont f) { - char *p; + + assert(p->fonti + 1 < 10); + p->fontl = p->fontq[p->fonti]; + p->fontq[++p->fonti] = f; +} + + +const void * +term_fontq(struct termp *p) +{ + + return(&p->fontq[p->fonti]); +} + + +enum termfont +term_fonttop(struct termp *p) +{ + + return(p->fontq[p->fonti]); +} + + +void +term_fontpopq(struct termp *p, const void *key) +{ + + while (p->fonti >= 0 && key != &p->fontq[p->fonti]) + p->fonti--; + assert(p->fonti >= 0); +} + + +void +term_fontpop(struct termp *p) +{ + + assert(p->fonti); + p->fonti--; +} + +/* + * Handle pwords, partial words, which may be either a single word or a + * phrase that cannot be broken down (such as a literal string). This + * handles word styling. + */ +void +term_word(struct termp *p, const char *word) +{ + const char *seq, *cp; + char c; + int sz, uc; size_t ssz; + enum mandoc_esc esc; - if (NULL == (p = vol2a(vol))) - switch (msec) { - case (MSEC_1): - /* FALLTHROUGH */ - case (MSEC_6): - /* FALLTHROUGH */ - case (MSEC_7): - p = vol2a(VOL_URM); + if ( ! (TERMP_NOSPACE & p->flags)) { + if ( ! (TERMP_KEEP & p->flags)) { + if (TERMP_PREKEEP & p->flags) + p->flags |= TERMP_KEEP; + bufferc(p, ' '); + if (TERMP_SENTENCE & p->flags) + bufferc(p, ' '); + } else + bufferc(p, ASCII_NBRSP); + } + + if ( ! (p->flags & TERMP_NONOSPACE)) + p->flags &= ~TERMP_NOSPACE; + else + p->flags |= TERMP_NOSPACE; + + p->flags &= ~(TERMP_SENTENCE | TERMP_IGNDELIM); + + while ('\0' != *word) { + if ((ssz = strcspn(word, "\\")) > 0) + encode(p, word, ssz); + + word += (int)ssz; + if ('\\' != *word) + continue; + + word++; + esc = mandoc_escape(&word, &seq, &sz); + if (ESCAPE_ERROR == esc) break; - case (MSEC_8): - p = vol2a(VOL_SMM); + + if (TERMENC_ASCII != p->enc) + switch (esc) { + case (ESCAPE_UNICODE): + uc = mchars_num2uc(seq + 1, sz - 1); + if ('\0' == uc) + break; + encode1(p, uc); + continue; + case (ESCAPE_SPECIAL): + uc = mchars_spec2cp(p->symtab, seq, sz); + if (uc <= 0) + break; + encode1(p, uc); + continue; + default: + break; + } + + switch (esc) { + case (ESCAPE_UNICODE): + encode1(p, '?'); break; - case (MSEC_2): + case (ESCAPE_NUMBERED): + c = mchars_num2char(seq, sz); + if ('\0' != c) + encode(p, &c, 1); + break; + case (ESCAPE_SPECIAL): + cp = mchars_spec2str(p->symtab, seq, sz, &ssz); + if (NULL != cp) + encode(p, cp, ssz); + else if (1 == ssz) + encode(p, seq, sz); + break; + case (ESCAPE_FONTBOLD): + term_fontrepl(p, TERMFONT_BOLD); + break; + case (ESCAPE_FONTITALIC): + term_fontrepl(p, TERMFONT_UNDER); + break; + case (ESCAPE_FONT): /* FALLTHROUGH */ - case (MSEC_3): - /* FALLTHROUGH */ - case (MSEC_4): - /* FALLTHROUGH */ - case (MSEC_5): - p = vol2a(VOL_PRM); + case (ESCAPE_FONTROMAN): + term_fontrepl(p, TERMFONT_NONE); break; - case (MSEC_9): - p = vol2a(VOL_KM); + case (ESCAPE_FONTPREV): + term_fontlast(p); break; + case (ESCAPE_NOSPACE): + if ('\0' == *word) + p->flags |= TERMP_NOSPACE; + break; default: - /* FIXME: capitalise. */ - if (NULL == (p = msec2a(msec))) - p = msec2a(MSEC_local); break; } - assert(p); + } +} - if ((ssz = strlcpy(dst, p, sz)) >= sz) - return(ssz); +static void +adjbuf(struct termp *p, int sz) +{ - if ((p = arch2a(arch))) { - if ((ssz = strlcat(dst, " (", sz)) >= sz) - return(ssz); - if ((ssz = strlcat(dst, p, sz)) >= sz) - return(ssz); - if ((ssz = strlcat(dst, ")", sz)) >= sz) - return(ssz); - } + if (0 == p->maxcols) + p->maxcols = 1024; + while (sz >= p->maxcols) + p->maxcols <<= 2; - return(ssz); + p->buf = mandoc_realloc + (p->buf, sizeof(int) * (size_t)p->maxcols); } - -static int -termprint_r(size_t cols, size_t indent, const struct mdoc_node *node) +static void +bufferc(struct termp *p, char c) { - return(1); + if (p->col + 1 >= p->maxcols) + adjbuf(p, p->col + 1); + + p->buf[p->col++] = c; } +/* + * See encode(). + * Do this for a single (probably unicode) value. + * Does not check for non-decorated glyphs. + */ +static void +encode1(struct termp *p, int c) +{ + enum termfont f; + if (p->col + 4 >= p->maxcols) + adjbuf(p, p->col + 4); + + f = term_fonttop(p); + + if (TERMFONT_NONE == f) { + p->buf[p->col++] = c; + return; + } else if (TERMFONT_UNDER == f) { + p->buf[p->col++] = '_'; + } else + p->buf[p->col++] = c; + + p->buf[p->col++] = 8; + p->buf[p->col++] = c; +} + static void -termprint_tail(size_t cols, const struct mdoc_meta *meta) +encode(struct termp *p, const char *word, size_t sz) { - struct tm *tm; - char *buf, *os; - size_t sz, osz, ssz, i; + enum termfont f; + int i, len; - if (NULL == (buf = malloc(cols))) - err(1, "malloc"); - if (NULL == (os = malloc(cols))) - err(1, "malloc"); + /* LINTED */ + len = sz; - tm = localtime(&meta->date); - if (NULL == strftime(buf, cols, "%B %d, %Y", tm)) - err(1, "strftime"); + /* + * Encode and buffer a string of characters. If the current + * font mode is unset, buffer directly, else encode then buffer + * character by character. + */ - osz = strlcpy(os, meta->os, cols); + if (TERMFONT_NONE == (f = term_fonttop(p))) { + if (p->col + len >= p->maxcols) + adjbuf(p, p->col + len); + for (i = 0; i < len; i++) + p->buf[p->col++] = word[i]; + return; + } - sz = strlen(buf); - ssz = sz + osz + 1; + /* Pre-buffer, assuming worst-case. */ - if (ssz > cols) { - ssz -= cols; - assert(ssz <= osz); - os[osz - ssz] = 0; - ssz = 1; - } else - ssz = cols - ssz + 1; + if (p->col + 1 + (len * 3) >= p->maxcols) + adjbuf(p, p->col + 1 + (len * 3)); - printf("%s", os); - for (i = 0; i < ssz; i++) - printf(" "); + for (i = 0; i < len; i++) { + if (ASCII_HYPH != word[i] && + ! isgraph((unsigned char)word[i])) { + p->buf[p->col++] = word[i]; + continue; + } - printf("%s\n", buf); + if (TERMFONT_UNDER == f) + p->buf[p->col++] = '_'; + else if (ASCII_HYPH == word[i]) + p->buf[p->col++] = '-'; + else + p->buf[p->col++] = word[i]; - free(buf); - free(os); + p->buf[p->col++] = 8; + p->buf[p->col++] = word[i]; + } } - -static void -termprint_head(size_t cols, const struct mdoc_meta *meta) +size_t +term_len(const struct termp *p, size_t sz) { - char *msec, *buf, *title; - size_t ssz, tsz, ttsz, i; - if (NULL == (buf = malloc(cols))) - err(1, "malloc"); - if (NULL == (title = malloc(cols))) - err(1, "malloc"); + return((*p->width)(p, ' ') * sz); +} - /* Format the manual page header. */ - tsz = ttitle2a(buf, meta->vol, meta->msec, meta->arch, cols); - ttsz = strlcpy(title, meta->title, cols); +size_t +term_strlen(const struct termp *p, const char *cp) +{ + size_t sz, rsz, i; + int ssz, c; + const char *seq, *rhs; + enum mandoc_esc esc; + static const char rej[] = { '\\', ASCII_HYPH, ASCII_NBRSP, '\0' }; - if (NULL == (msec = msec2a(meta->msec))) - msec = ""; + /* + * Account for escaped sequences within string length + * calculations. This follows the logic in term_word() as we + * must calculate the width of produced strings. + */ - ssz = (2 * (ttsz + 2 + strlen(msec))) + tsz + 2; + sz = 0; + while ('\0' != *cp) { + rsz = strcspn(cp, rej); + for (i = 0; i < rsz; i++) + sz += (*p->width)(p, *cp++); - if (ssz > cols) { - if ((ssz -= cols) % 2) - ssz++; - ssz /= 2; - - assert(ssz <= ttsz); - title[ttsz - ssz] = 0; - ssz = 1; - } else - ssz = ((cols - ssz) / 2) + 1; + c = 0; + switch (*cp) { + case ('\\'): + cp++; + esc = mandoc_escape(&cp, &seq, &ssz); + if (ESCAPE_ERROR == esc) + return(sz); - printf("%s(%s)", title, msec); + if (TERMENC_ASCII != p->enc) + switch (esc) { + case (ESCAPE_UNICODE): + c = mchars_num2uc + (seq + 1, ssz - 1); + if ('\0' == c) + break; + sz += (*p->width)(p, c); + continue; + case (ESCAPE_SPECIAL): + c = mchars_spec2cp + (p->symtab, seq, ssz); + if (c <= 0) + break; + sz += (*p->width)(p, c); + continue; + default: + break; + } - for (i = 0; i < ssz; i++) - printf(" "); + rhs = NULL; - printf("%s", buf); + switch (esc) { + case (ESCAPE_UNICODE): + sz += (*p->width)(p, '?'); + break; + case (ESCAPE_NUMBERED): + c = mchars_num2char(seq, ssz); + if ('\0' != c) + sz += (*p->width)(p, c); + break; + case (ESCAPE_SPECIAL): + rhs = mchars_spec2str + (p->symtab, seq, ssz, &rsz); - for (i = 0; i < ssz; i++) - printf(" "); + if (ssz != 1 || rhs) + break; - printf("%s(%s)\n\n", title, msec); + rhs = seq; + rsz = ssz; + break; + default: + break; + } - free(title); - free(buf); -} + if (NULL == rhs) + break; + for (i = 0; i < rsz; i++) + sz += (*p->width)(p, *rhs++); + break; + case (ASCII_NBRSP): + sz += (*p->width)(p, ' '); + cp++; + break; + case (ASCII_HYPH): + sz += (*p->width)(p, '-'); + cp++; + break; + default: + break; + } + } -int -termprint(const struct mdoc_node *node, - const struct mdoc_meta *meta) + return(sz); +} + +/* ARGSUSED */ +size_t +term_vspan(const struct termp *p, const struct roffsu *su) { - size_t cols; + double r; - if (ERR == setupterm(NULL, STDOUT_FILENO, NULL)) - return(0); + switch (su->unit) { + case (SCALE_CM): + r = su->scale * 2; + break; + case (SCALE_IN): + r = su->scale * 6; + break; + case (SCALE_PC): + r = su->scale; + break; + case (SCALE_PT): + r = su->scale / 8; + break; + case (SCALE_MM): + r = su->scale / 1000; + break; + case (SCALE_VS): + r = su->scale; + break; + default: + r = su->scale - 1; + break; + } - cols = columns < 60 ? 60 : (size_t)columns; - - termprint_head(cols, meta); - if ( ! termprint_r(cols, 0, node)) - return(0); - termprint_tail(cols, meta); - return(1); + if (r < 0.0) + r = 0.0; + return(/* LINTED */(size_t) + r); } +size_t +term_hspan(const struct termp *p, const struct roffsu *su) +{ + double v; + v = ((*p->hspan)(p, su)); + if (v < 0.0) + v = 0.0; + return((size_t) /* LINTED */ + v); +}