=================================================================== RCS file: /cvs/mandoc/term.c,v retrieving revision 1.203 retrieving revision 1.239 diff -u -p -r1.203 -r1.239 --- mandoc/term.c 2012/05/31 22:29:13 1.203 +++ mandoc/term.c 2014/12/23 06:16:46 1.239 @@ -1,7 +1,7 @@ -/* $Id: term.c,v 1.203 2012/05/31 22:29:13 schwarze Exp $ */ +/* $Id: term.c,v 1.239 2014/12/23 06:16:46 schwarze Exp $ */ /* * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons - * Copyright (c) 2010, 2011, 2012 Ingo Schwarze + * Copyright (c) 2010-2014 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 @@ -15,45 +15,40 @@ * 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 "mandoc.h" +#include "mandoc_aux.h" #include "out.h" #include "term.h" #include "main.h" static size_t cond_width(const struct termp *, int, int *); -static void adjbuf(struct termp *p, int); +static void adjbuf(struct termp *p, size_t); static void bufferc(struct termp *, char); static void encode(struct termp *, const char *, size_t); static void encode1(struct termp *, int); + void term_free(struct termp *p) { - if (p->buf) - free(p->buf); - if (p->symtab) - mchars_free(p->symtab); - + free(p->buf); + free(p->fontq); free(p); } - void -term_begin(struct termp *p, term_margin head, +term_begin(struct termp *p, term_margin head, term_margin foot, const void *arg) { @@ -63,7 +58,6 @@ term_begin(struct termp *p, term_margin head, (*p->begin)(p); } - void term_end(struct termp *p) { @@ -72,63 +66,65 @@ term_end(struct termp *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. - * + * Flush a chunk of text. By default, break the output line each time + * the right margin is reached, and continue output on the next line + * at the same offset as the chunk itself. By default, also break the + * output line at the end of the chunk. * 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. + * - TERMP_NOBREAK: Do not break the output line at the right margin, + * but only at the max right margin. Also, do not break the output + * line at the end of the chunk, such that the next call can pad to + * the next column. However, if less than p->trailspace blanks, + * which can be 0, 1, or 2, remain to the right margin, the line + * will be broken. + * - TERMP_BRIND: If the chunk does not fit and the output line has + * to be broken, start the next line at the right margin instead + * of at the offset. Used together with TERMP_NOBREAK for the tags + * in various kinds of tagged lists. + * - TERMP_DANGLE: Do not break the output line at the right margin, + * append the next chunk after it even if this one is too long. + * To be used together with TERMP_NOBREAK. + * - TERMP_HANG: Like TERMP_DANGLE, and also suppress padding before + * the next chunk if this column is not full. */ void term_flushln(struct termp *p) { - int i; /* current input position in p->buf */ + size_t i; /* current input position in p->buf */ + int ntab; /* number of tabs to prepend */ 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 j; /* temporary loop index for p->buf */ + size_t jhy; /* last hyph before overflow w/r/t j */ size_t maxvis; /* output position of visible boundary */ - size_t mmax; /* used in calculating bp */ + size_t rmargin; /* the rightmost of the two margins */ /* * 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. + * small set of values. + * + * The following unsigned-signed subtractions look strange, + * but they are actually correct. If the int p->overstep + * is negative, it gets sign extended. Subtracting that + * very large size_t effectively adds a small number to dv. */ - assert (p->rmargin >= p->offset); - dv = p->rmargin - p->offset; + rmargin = p->rmargin > p->offset ? 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; + if (p->flags & TERMP_NOBREAK) { + dv = p->maxrmargin > p->offset ? + p->maxrmargin - p->offset : 0; + bp = (int)dv > p->overstep ? + dv - (size_t)p->overstep : 0; + } else + bp = maxvis; /* * Calculate the required amount of padding. @@ -144,10 +140,12 @@ term_flushln(struct termp *p) * Handle literal tab characters: collapse all * subsequent tabs into a single huge set of spaces. */ + ntab = 0; while (i < p->col && '\t' == p->buf[i]) { vend = (vis / p->tabwidth + 1) * p->tabwidth; vbl += vend - vis; vis = vend; + ntab++; i++; } @@ -159,7 +157,7 @@ term_flushln(struct termp *p) */ for (j = i, jhy = 0; j < p->col; j++) { - if ((j && ' ' == p->buf[j]) || '\t' == p->buf[j]) + if (' ' == p->buf[j] || '\t' == p->buf[j]) break; /* Back over the the last printed character. */ @@ -171,10 +169,18 @@ term_flushln(struct termp *p) /* Regular word. */ /* Break at the hyphen point if we overrun. */ - if (vend > vis && vend < bp && - ASCII_HYPH == p->buf[j]) + if (vend > vis && vend < bp && + (ASCII_HYPH == p->buf[j] || + ASCII_BREAK == p->buf[j])) jhy = j; + /* + * Hyphenation now decided, put back a real + * hyphen such that we get the correct width. + */ + if (ASCII_HYPH == p->buf[j]) + p->buf[j] = '-'; + vend += (*p->width)(p, p->buf[j]); } @@ -186,14 +192,23 @@ term_flushln(struct termp *p) vend -= vis; (*p->endline)(p); p->viscol = 0; - if (TERMP_NOBREAK & p->flags) { - vbl = p->rmargin; - vend += p->rmargin - p->offset; + if (TERMP_BRIND & p->flags) { + vbl = rmargin; + vend += rmargin - p->offset; } else vbl = p->offset; - /* Remove the p->overstep width. */ + /* use pending tabs on the new line */ + if (0 < ntab) + vbl += ntab * p->tabwidth; + + /* + * Remove the p->overstep width. + * Again, if p->overstep is negative, + * sign extension does the right thing. + */ + bp += (size_t)p->overstep; p->overstep = 0; } @@ -206,9 +221,9 @@ term_flushln(struct termp *p) break; if (' ' == p->buf[i]) { j = i; - while (' ' == p->buf[i]) + while (i < p->col && ' ' == p->buf[i]) i++; - dv = (size_t)(i - j) * (*p->width)(p, ' '); + dv = (i - j) * (*p->width)(p, ' '); vbl += dv; vend += dv; break; @@ -217,6 +232,8 @@ term_flushln(struct termp *p) vbl += (*p->width)(p, ' '); continue; } + if (ASCII_BREAK == p->buf[i]) + continue; /* * Now we definitely know there will be @@ -229,16 +246,10 @@ term_flushln(struct termp *p) 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 + else p->viscol += (*p->width)(p, p->buf[i]); } vis = vend; @@ -248,8 +259,10 @@ term_flushln(struct termp *p) * If there was trailing white space, it was not printed; * so reset the cursor position accordingly. */ - if (vis) + if (vis > vbl) vis -= vbl; + else + vis = 0; p->col = 0; p->overstep = 0; @@ -261,20 +274,17 @@ term_flushln(struct termp *p) } if (TERMP_HANG & p->flags) { - /* We need one blank after the tag. */ - p->overstep = (int)(vis - maxvis + (*p->width)(p, ' ')); + p->overstep = (int)(vis - maxvis + + p->trailspace * (*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 there is a request to keep the columns together, + * allow negative overstep when the column is not full. */ - if (p->overstep < -1) + if (p->trailspace && p->overstep < 0) p->overstep = 0; return; @@ -282,15 +292,13 @@ term_flushln(struct termp *p) return; /* If the column was overrun, break the line. */ - if (maxvis <= vis + - ((TERMP_TWOSPACE & p->flags) ? (*p->width)(p, ' ') : 0)) { + if (maxvis < vis + p->trailspace * (*p->width)(p, ' ')) { (*p->endline)(p); p->viscol = 0; } } - -/* +/* * 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. @@ -304,7 +312,6 @@ term_newln(struct termp *p) term_flushln(p); } - /* * 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. @@ -323,6 +330,7 @@ term_vspace(struct termp *p) (*p->endline)(p); } +/* Swap current and previous font; for \fP and .ft P */ void term_fontlast(struct termp *p) { @@ -333,7 +341,7 @@ term_fontlast(struct termp *p) p->fontq[p->fonti] = f; } - +/* Set font, save current, discard previous; for \f, .ft, .B etc. */ void term_fontrepl(struct termp *p, enum termfont f) { @@ -342,43 +350,39 @@ term_fontrepl(struct termp *p, enum termfont f) p->fontq[p->fonti] = f; } - +/* Set font, save previous. */ void term_fontpush(struct termp *p, enum termfont f) { - assert(p->fonti + 1 < 10); p->fontl = p->fontq[p->fonti]; - p->fontq[++p->fonti] = f; + if (++p->fonti == p->fontsz) { + p->fontsz += 8; + p->fontq = mandoc_reallocarray(p->fontq, + p->fontsz, sizeof(enum termfont *)); + } + p->fontq[p->fonti] = f; } - -const void * +/* Retrieve pointer to current font. */ +const enum termfont * term_fontq(struct termp *p) { return(&p->fontq[p->fonti]); } - -enum termfont -term_fonttop(struct termp *p) -{ - - return(p->fontq[p->fonti]); -} - - +/* Flush to make the saved pointer current again. */ void -term_fontpopq(struct termp *p, const void *key) +term_fontpopq(struct termp *p, const enum termfont *key) { - while (p->fonti >= 0 && key != &p->fontq[p->fonti]) + while (p->fonti >= 0 && key < p->fontq + p->fonti) p->fonti--; assert(p->fonti >= 0); } - +/* Pop one font off the stack. */ void term_fontpop(struct termp *p) { @@ -395,29 +399,29 @@ term_fontpop(struct termp *p) void term_word(struct termp *p, const char *word) { + const char nbrsp[2] = { ASCII_NBRSP, 0 }; const char *seq, *cp; - char c; int sz, uc; size_t ssz; enum mandoc_esc esc; 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 (TERMP_PREKEEP & p->flags) + p->flags |= TERMP_KEEP; if ( ! (p->flags & TERMP_NONOSPACE)) p->flags &= ~TERMP_NOSPACE; else p->flags |= TERMP_NOSPACE; - p->flags &= ~(TERMP_SENTENCE | TERMP_IGNDELIM); + p->flags &= ~(TERMP_SENTENCE | TERMP_NONEWLINE); while ('\0' != *word) { if ('\\' != *word) { @@ -426,7 +430,15 @@ term_word(struct termp *p, const char *word) word++; continue; } - ssz = strcspn(word, "\\"); + if (TERMP_NBRWORD & p->flags) { + if (' ' == *word) { + encode(p, nbrsp, 1); + word++; + continue; + } + ssz = strcspn(word, "\\ "); + } else + ssz = strcspn(word, "\\"); encode(p, word, ssz); word += (int)ssz; continue; @@ -435,73 +447,79 @@ term_word(struct termp *p, const char *word) word++; esc = mandoc_escape(&word, &seq, &sz); if (ESCAPE_ERROR == esc) - break; + continue; - 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, '?'); + case ESCAPE_UNICODE: + uc = mchars_num2uc(seq + 1, sz - 1); break; - case (ESCAPE_NUMBERED): - c = mchars_num2char(seq, sz); - if ('\0' != c) - encode(p, &c, 1); + case ESCAPE_NUMBERED: + uc = mchars_num2char(seq, sz); + if (uc < 0) + continue; 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): + case ESCAPE_SPECIAL: + if (p->enc == TERMENC_ASCII) { + cp = mchars_spec2str(p->symtab, + seq, sz, &ssz); + if (cp != NULL) + encode(p, cp, ssz); + } else { + uc = mchars_spec2cp(p->symtab, seq, sz); + if (uc > 0) + encode1(p, uc); + } + continue; + case ESCAPE_FONTBOLD: term_fontrepl(p, TERMFONT_BOLD); - break; - case (ESCAPE_FONTITALIC): + continue; + case ESCAPE_FONTITALIC: term_fontrepl(p, TERMFONT_UNDER); - break; - case (ESCAPE_FONT): + continue; + case ESCAPE_FONTBI: + term_fontrepl(p, TERMFONT_BI); + continue; + case ESCAPE_FONT: /* FALLTHROUGH */ - case (ESCAPE_FONTROMAN): + case ESCAPE_FONTROMAN: term_fontrepl(p, TERMFONT_NONE); - break; - case (ESCAPE_FONTPREV): + continue; + case ESCAPE_FONTPREV: term_fontlast(p); - break; - case (ESCAPE_NOSPACE): + continue; + case ESCAPE_NOSPACE: if (TERMP_SKIPCHAR & p->flags) p->flags &= ~TERMP_SKIPCHAR; else if ('\0' == *word) - p->flags |= TERMP_NOSPACE; - break; - case (ESCAPE_SKIPCHAR): + p->flags |= (TERMP_NOSPACE | TERMP_NONEWLINE); + continue; + case ESCAPE_SKIPCHAR: p->flags |= TERMP_SKIPCHAR; - break; + continue; default: - break; + continue; } + + /* + * Common handling for Unicode and numbered + * character escape sequences. + */ + + if (p->enc == TERMENC_ASCII) { + cp = ascii_uc2str(uc); + encode(p, cp, strlen(cp)); + } else { + if ((uc < 0x20 && uc != 0x09) || + (uc > 0x7E && uc < 0xA0)) + uc = 0xFFFD; + encode1(p, uc); + } } + p->flags &= ~TERMP_NBRWORD; } static void -adjbuf(struct termp *p, int sz) +adjbuf(struct termp *p, size_t sz) { if (0 == p->maxcols) @@ -509,8 +527,7 @@ adjbuf(struct termp *p, int sz) while (sz >= p->maxcols) p->maxcols <<= 2; - p->buf = mandoc_realloc - (p->buf, sizeof(int) * (size_t)p->maxcols); + p->buf = mandoc_reallocarray(p->buf, p->maxcols, sizeof(int)); } static void @@ -538,73 +555,91 @@ encode1(struct termp *p, int c) return; } - if (p->col + 4 >= p->maxcols) - adjbuf(p, p->col + 4); + if (p->col + 6 >= p->maxcols) + adjbuf(p, p->col + 6); - f = term_fonttop(p); + f = *term_fontq(p); - if (TERMFONT_NONE == f) { - p->buf[p->col++] = c; - return; - } else if (TERMFONT_UNDER == f) { + if (TERMFONT_UNDER == f || TERMFONT_BI == f) { p->buf[p->col++] = '_'; - } else - p->buf[p->col++] = c; - - p->buf[p->col++] = 8; + p->buf[p->col++] = 8; + } + if (TERMFONT_BOLD == f || TERMFONT_BI == f) { + if (ASCII_HYPH == c) + p->buf[p->col++] = '-'; + else + p->buf[p->col++] = c; + p->buf[p->col++] = 8; + } p->buf[p->col++] = c; } static void encode(struct termp *p, const char *word, size_t sz) { - enum termfont f; - int i, len; + size_t i; if (TERMP_SKIPCHAR & p->flags) { p->flags &= ~TERMP_SKIPCHAR; return; } - /* LINTED */ - len = sz; - /* * Encode and buffer a string of characters. If the current * font mode is unset, buffer directly, else encode then buffer * character by character. */ - if (TERMFONT_NONE == (f = term_fonttop(p))) { - if (p->col + len >= p->maxcols) - adjbuf(p, p->col + len); - for (i = 0; i < len; i++) + if (*term_fontq(p) == TERMFONT_NONE) { + if (p->col + sz >= p->maxcols) + adjbuf(p, p->col + sz); + for (i = 0; i < sz; i++) p->buf[p->col++] = word[i]; return; } /* Pre-buffer, assuming worst-case. */ - if (p->col + 1 + (len * 3) >= p->maxcols) - adjbuf(p, p->col + 1 + (len * 3)); + if (p->col + 1 + (sz * 5) >= p->maxcols) + adjbuf(p, p->col + 1 + (sz * 5)); - for (i = 0; i < len; i++) { - if (ASCII_HYPH != word[i] && - ! isgraph((unsigned char)word[i])) { - p->buf[p->col++] = word[i]; - continue; - } - - if (TERMFONT_UNDER == f) - p->buf[p->col++] = '_'; - else if (ASCII_HYPH == word[i]) - p->buf[p->col++] = '-'; + for (i = 0; i < sz; i++) { + if (ASCII_HYPH == word[i] || + isgraph((unsigned char)word[i])) + encode1(p, word[i]); else p->buf[p->col++] = word[i]; + } +} - p->buf[p->col++] = 8; - p->buf[p->col++] = word[i]; +void +term_setwidth(struct termp *p, const char *wstr) +{ + struct roffsu su; + size_t width; + int iop; + + iop = 0; + width = 0; + if (NULL != wstr) { + switch (*wstr) { + case '+': + iop = 1; + wstr++; + break; + case '-': + iop = -1; + wstr++; + break; + default: + break; + } + if (a2roffsu(wstr, &su, SCALE_MAX)) + width = term_hspan(p, &su); + else + iop = 0; } + (*p->setwidth)(p, iop, width); } size_t @@ -629,10 +664,11 @@ size_t term_strlen(const struct termp *p, const char *cp) { size_t sz, rsz, i; - int ssz, skip, c; + int ssz, skip, uc; const char *seq, *rhs; enum mandoc_esc esc; - static const char rej[] = { '\\', ASCII_HYPH, ASCII_NBRSP, '\0' }; + static const char rej[] = { '\\', ASCII_NBRSP, ASCII_HYPH, + ASCII_BREAK, '\0' }; /* * Account for escaped sequences within string length @@ -647,80 +683,84 @@ term_strlen(const struct termp *p, const char *cp) for (i = 0; i < rsz; i++) sz += cond_width(p, *cp++, &skip); - c = 0; switch (*cp) { - case ('\\'): + case '\\': cp++; esc = mandoc_escape(&cp, &seq, &ssz); if (ESCAPE_ERROR == esc) - return(sz); + continue; - if (TERMENC_ASCII != p->enc) - switch (esc) { - case (ESCAPE_UNICODE): - c = mchars_num2uc - (seq + 1, ssz - 1); - if ('\0' == c) - break; - sz += cond_width(p, c, &skip); - continue; - case (ESCAPE_SPECIAL): - c = mchars_spec2cp - (p->symtab, seq, ssz); - if (c <= 0) - break; - sz += cond_width(p, c, &skip); - continue; - default: - break; - } - rhs = NULL; switch (esc) { - case (ESCAPE_UNICODE): - sz += cond_width(p, '?', &skip); + case ESCAPE_UNICODE: + uc = mchars_num2uc(seq + 1, ssz - 1); break; - case (ESCAPE_NUMBERED): - c = mchars_num2char(seq, ssz); - if ('\0' != c) - sz += cond_width(p, c, &skip); + case ESCAPE_NUMBERED: + uc = mchars_num2char(seq, ssz); + if (uc < 0) + continue; break; - case (ESCAPE_SPECIAL): - rhs = mchars_spec2str - (p->symtab, seq, ssz, &rsz); - - if (ssz != 1 || rhs) - break; - - rhs = seq; - rsz = ssz; - break; - case (ESCAPE_SKIPCHAR): + case ESCAPE_SPECIAL: + if (p->enc == TERMENC_ASCII) { + rhs = mchars_spec2str(p->symtab, + seq, ssz, &rsz); + if (rhs != NULL) + break; + } else { + uc = mchars_spec2cp(p->symtab, + seq, ssz); + if (uc > 0) + sz += cond_width(p, uc, &skip); + } + continue; + case ESCAPE_SKIPCHAR: skip = 1; - break; + continue; default: - break; + continue; } - if (NULL == rhs) - break; + /* + * Common handling for Unicode and numbered + * character escape sequences. + */ + if (rhs == NULL) { + if (p->enc == TERMENC_ASCII) { + rhs = ascii_uc2str(uc); + rsz = strlen(rhs); + } else { + if ((uc < 0x20 && uc != 0x09) || + (uc > 0x7E && uc < 0xA0)) + uc = 0xFFFD; + sz += cond_width(p, uc, &skip); + continue; + } + } + if (skip) { skip = 0; break; } + /* + * Common handling for all escape sequences + * printing more than one character. + */ + for (i = 0; i < rsz; i++) sz += (*p->width)(p, *rhs++); break; - case (ASCII_NBRSP): + case ASCII_NBRSP: sz += cond_width(p, ' ', &skip); cp++; break; - case (ASCII_HYPH): + case ASCII_HYPH: sz += cond_width(p, '-', &skip); cp++; + /* FALLTHROUGH */ + case ASCII_BREAK: break; default: break; @@ -730,40 +770,49 @@ term_strlen(const struct termp *p, const char *cp) return(sz); } -/* ARGSUSED */ size_t term_vspan(const struct termp *p, const struct roffsu *su) { double r; switch (su->unit) { - case (SCALE_CM): - r = su->scale * 2; + case SCALE_BU: + r = su->scale / 40.0; break; - case (SCALE_IN): - r = su->scale * 6; + case SCALE_CM: + r = su->scale * 6.0 / 2.54; break; - case (SCALE_PC): + case SCALE_FS: + r = su->scale * 65536.0 / 40.0; + break; + case SCALE_IN: + r = su->scale * 6.0; + break; + case SCALE_MM: + r = su->scale * 0.006; + break; + case SCALE_PC: r = su->scale; break; - case (SCALE_PT): - r = su->scale / 8; + case SCALE_PT: + r = su->scale / 12.0; break; - case (SCALE_MM): - r = su->scale / 1000; + case SCALE_EN: + /* FALLTHROUGH */ + case SCALE_EM: + r = su->scale * 0.6; break; - case (SCALE_VS): + case SCALE_VS: r = su->scale; break; default: - r = su->scale - 1; - break; + abort(); + /* NOTREACHED */ } if (r < 0.0) r = 0.0; - return(/* LINTED */(size_t) - r); + return((size_t)(r + 0.4995)); } size_t @@ -771,9 +820,8 @@ term_hspan(const struct termp *p, const struct roffsu { double v; - v = ((*p->hspan)(p, su)); + v = (*p->hspan)(p, su); if (v < 0.0) v = 0.0; - return((size_t) /* LINTED */ - v); + return((size_t)(v + 0.0005)); }