=================================================================== RCS file: /cvs/mandoc/term.c,v retrieving revision 1.219 retrieving revision 1.230 diff -u -p -r1.219 -r1.230 --- mandoc/term.c 2014/03/30 21:28:01 1.219 +++ mandoc/term.c 2014/10/27 13:31:04 1.230 @@ -1,4 +1,4 @@ -/* $Id: term.c,v 1.219 2014/03/30 21:28:01 schwarze Exp $ */ +/* $Id: term.c,v 1.230 2014/10/27 13:31:04 schwarze Exp $ */ /* * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons * Copyright (c) 2010-2014 Ingo Schwarze @@ -15,9 +15,7 @@ * 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 @@ -39,6 +37,7 @@ 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) { @@ -51,9 +50,8 @@ term_free(struct termp *p) 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 +61,6 @@ term_begin(struct termp *p, term_margin head, (*p->begin)(p); } - void term_end(struct termp *p) { @@ -72,34 +69,27 @@ 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. - * p->trailspace may be set to 0, 1, or 2, depending on how many - * space characters are required at the end of the column. - * - * - 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) @@ -178,7 +168,7 @@ term_flushln(struct termp *p) /* Regular word. */ /* Break at the hyphen point if we overrun. */ - if (vend > vis && vend < bp && + if (vend > vis && vend < bp && (ASCII_HYPH == p->buf[j] || ASCII_BREAK == p->buf[j])) jhy = j; @@ -201,7 +191,7 @@ term_flushln(struct termp *p) vend -= vis; (*p->endline)(p); p->viscol = 0; - if (TERMP_NOBREAK & p->flags) { + if (TERMP_BRIND & p->flags) { vbl = p->rmargin; vend += p->rmargin - p->offset; } else @@ -230,7 +220,7 @@ 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 = (i - j) * (*p->width)(p, ' '); vbl += dv; @@ -258,7 +248,7 @@ term_flushln(struct termp *p) (*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; @@ -282,7 +272,7 @@ term_flushln(struct termp *p) if (TERMP_HANG & p->flags) { p->overstep = (int)(vis - maxvis + - p->trailspace * (*p->width)(p, ' ')); + p->trailspace * (*p->width)(p, ' ')); /* * If we have overstepped the margin, temporarily move @@ -305,8 +295,7 @@ term_flushln(struct termp *p) } } - -/* +/* * 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. @@ -320,7 +309,6 @@ 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. @@ -349,7 +337,6 @@ term_fontlast(struct termp *p) p->fontq[p->fonti] = f; } - void term_fontrepl(struct termp *p, enum termfont f) { @@ -358,7 +345,6 @@ term_fontrepl(struct termp *p, enum termfont f) p->fontq[p->fonti] = f; } - void term_fontpush(struct termp *p, enum termfont f) { @@ -368,7 +354,6 @@ term_fontpush(struct termp *p, enum termfont f) p->fontq[++p->fonti] = f; } - const void * term_fontq(struct termp *p) { @@ -376,7 +361,6 @@ term_fontq(struct termp *p) return(&p->fontq[p->fonti]); } - enum termfont term_fonttop(struct termp *p) { @@ -384,7 +368,6 @@ term_fonttop(struct termp *p) return(p->fontq[p->fonti]); } - void term_fontpopq(struct termp *p, const void *key) { @@ -394,7 +377,6 @@ term_fontpopq(struct termp *p, const void *key) assert(p->fonti >= 0); } - void term_fontpop(struct termp *p) { @@ -460,66 +442,60 @@ 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); + if (p->enc == TERMENC_ASCII) { + cp = ascii_uc2str(uc); + encode(p, cp, strlen(cp)); + } else + encode1(p, uc); break; - case (ESCAPE_NUMBERED): + 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); + case ESCAPE_SPECIAL: + if (p->enc == TERMENC_ASCII) { + cp = mchars_spec2str(p->symtab, + seq, sz, &ssz); + if (cp == NULL) + encode(p, "", 3); + else + encode(p, cp, ssz); + } else { + uc = mchars_spec2cp(p->symtab, seq, sz); + if (uc > 0) + encode1(p, uc); + } break; - case (ESCAPE_FONTBOLD): + case ESCAPE_FONTBOLD: term_fontrepl(p, TERMFONT_BOLD); break; - case (ESCAPE_FONTITALIC): + case ESCAPE_FONTITALIC: term_fontrepl(p, TERMFONT_UNDER); break; - case (ESCAPE_FONTBI): + case ESCAPE_FONTBI: term_fontrepl(p, TERMFONT_BI); break; - case (ESCAPE_FONT): + case ESCAPE_FONT: /* FALLTHROUGH */ - case (ESCAPE_FONTROMAN): + case ESCAPE_FONTROMAN: term_fontrepl(p, TERMFONT_NONE); break; - case (ESCAPE_FONTPREV): + case ESCAPE_FONTPREV: term_fontlast(p); break; - case (ESCAPE_NOSPACE): + case ESCAPE_NOSPACE: if (TERMP_SKIPCHAR & p->flags) p->flags &= ~TERMP_SKIPCHAR; else if ('\0' == *word) p->flags |= TERMP_NOSPACE; break; - case (ESCAPE_SKIPCHAR): + case ESCAPE_SKIPCHAR: p->flags |= TERMP_SKIPCHAR; break; default: @@ -538,7 +514,7 @@ adjbuf(struct termp *p, size_t sz) while (sz >= p->maxcols) p->maxcols <<= 2; - p->buf = mandoc_realloc(p->buf, sizeof(int) * p->maxcols); + p->buf = mandoc_reallocarray(p->buf, p->maxcols, sizeof(int)); } static void @@ -602,7 +578,7 @@ encode(struct termp *p, const char *word, size_t sz) */ if (TERMFONT_NONE == term_fonttop(p)) { - if (p->col + sz >= p->maxcols) + if (p->col + sz >= p->maxcols) adjbuf(p, p->col + sz); for (i = 0; i < sz; i++) p->buf[p->col++] = word[i]; @@ -630,26 +606,26 @@ term_setwidth(struct termp *p, const char *wstr) size_t width; int iop; + iop = 0; + width = 0; if (NULL != wstr) { switch (*wstr) { - case ('+'): + case '+': iop = 1; wstr++; break; - case ('-'): + case '-': iop = -1; wstr++; break; default: - iop = 0; break; } - if ( ! a2roffsu(wstr, &su, SCALE_MAX)) { - wstr = NULL; + if (a2roffsu(wstr, &su, SCALE_MAX)) + width = term_hspan(p, &su); + else iop = 0; - } } - width = (NULL != wstr) ? term_hspan(p, &su) : 0; (*p->setwidth)(p, iop, width); } @@ -695,54 +671,44 @@ term_strlen(const struct termp *p, const char *cp) sz += cond_width(p, *cp++, &skip); 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: + c = mchars_num2uc(seq + 1, sz - 1); + if (p->enc == TERMENC_ASCII) { + rhs = ascii_uc2str(c); + rsz = strlen(rhs); + } else + sz += cond_width(p, c, &skip); break; - case (ESCAPE_NUMBERED): + case ESCAPE_NUMBERED: c = mchars_num2char(seq, ssz); if ('\0' != c) sz += cond_width(p, c, &skip); break; - case (ESCAPE_SPECIAL): - rhs = mchars_spec2str - (p->symtab, seq, ssz, &rsz); - - if (ssz != 1 || rhs) - break; - - rhs = seq; - rsz = ssz; + case ESCAPE_SPECIAL: + if (p->enc == TERMENC_ASCII) { + rhs = mchars_spec2str(p->symtab, + seq, ssz, &rsz); + if (rhs == NULL) { + rhs = ""; + rsz = 3; + } + } else { + c = mchars_spec2cp(p->symtab, + seq, ssz); + if (c > 0) + sz += cond_width(p, c, &skip); + } break; - case (ESCAPE_SKIPCHAR): + case ESCAPE_SKIPCHAR: skip = 1; break; default: @@ -760,15 +726,15 @@ term_strlen(const struct termp *p, const char *cp) 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): + case ASCII_BREAK: break; default: break; @@ -778,40 +744,38 @@ 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_CM: + r = su->scale * 2.0; break; - case (SCALE_IN): - r = su->scale * 6; + case SCALE_IN: + r = su->scale * 6.0; break; - case (SCALE_PC): + case SCALE_PC: r = su->scale; break; - case (SCALE_PT): - r = su->scale / 8; + case SCALE_PT: + r = su->scale / 8.0; break; - case (SCALE_MM): - r = su->scale / 1000; + case SCALE_MM: + r = su->scale / 1000.0; break; - case (SCALE_VS): + case SCALE_VS: r = su->scale; break; default: - r = su->scale - 1; + r = su->scale - 1.0; break; } if (r < 0.0) r = 0.0; - return(/* LINTED */(size_t) - r); + return((size_t)(r + 0.0005)); } size_t @@ -819,9 +783,8 @@ 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)); }