version 1.1, 2009/02/20 11:04:23 |
version 1.264, 2017/06/04 22:44:15 |
|
|
/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se> |
* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> |
|
* Copyright (c) 2010-2017 Ingo Schwarze <schwarze@openbsd.org> |
* |
* |
* Permission to use, copy, modify, and distribute this software for any |
* Permission to use, copy, modify, and distribute this software for any |
* purpose with or without fee is hereby granted, provided that the |
* purpose with or without fee is hereby granted, provided that the above |
* above copyright notice and this permission notice appear in all |
* copyright notice and this permission notice appear in all copies. |
* copies. |
|
* |
* |
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES |
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR |
* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
* PERFORMANCE OF THIS SOFTWARE. |
|
*/ |
*/ |
|
#include "config.h" |
|
|
|
#include <sys/types.h> |
|
|
#include <assert.h> |
#include <assert.h> |
#include <curses.h> |
#include <ctype.h> |
#include <err.h> |
|
#include <stdlib.h> |
|
#include <stdio.h> |
#include <stdio.h> |
|
#include <stdlib.h> |
#include <string.h> |
#include <string.h> |
#include <term.h> |
|
#include <unistd.h> |
|
|
|
#include "mdoc.h" |
#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, size_t); |
|
static void bufferc(struct termp *, char); |
|
static void encode(struct termp *, const char *, size_t); |
|
static void encode1(struct termp *, int); |
|
static void endline(struct termp *); |
|
|
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 *); |
|
|
|
static char *arch2a(enum mdoc_arch); |
void |
static char *vol2a(enum mdoc_vol); |
term_free(struct termp *p) |
static char *msec2a(enum mdoc_msec); |
{ |
|
|
static size_t ttitle2a(char *, enum mdoc_vol, enum mdoc_msec, |
free(p->buf); |
enum mdoc_arch, size_t); |
free(p->fontq); |
|
free(p); |
|
} |
|
|
|
void |
|
term_begin(struct termp *p, term_margin head, |
|
term_margin foot, const struct roff_meta *arg) |
|
{ |
|
|
static char * |
p->headf = head; |
arch2a(enum mdoc_arch arch) |
p->footf = foot; |
|
p->argf = arg; |
|
(*p->begin)(p); |
|
} |
|
|
|
void |
|
term_end(struct termp *p) |
{ |
{ |
|
|
switch (arch) { |
(*p->end)(p); |
case (ARCH_alpha): |
} |
return("Alpha"); |
|
case (ARCH_amd64): |
/* |
return("AMD64"); |
* Flush a chunk of text. By default, break the output line each time |
case (ARCH_amiga): |
* the right margin is reached, and continue output on the next line |
return("Amiga"); |
* at the same offset as the chunk itself. By default, also break the |
case (ARCH_arc): |
* output line at the end of the chunk. |
return("ARC"); |
* The following flags may be specified: |
case (ARCH_arm): |
* |
return("ARM"); |
* - TERMP_NOBREAK: Do not break the output line at the right margin, |
case (ARCH_armish): |
* but only at the max right margin. Also, do not break the output |
return("ARMISH"); |
* line at the end of the chunk, such that the next call can pad to |
case (ARCH_aviion): |
* the next column. However, if less than p->trailspace blanks, |
return("AViion"); |
* which can be 0, 1, or 2, remain to the right margin, the line |
case (ARCH_hp300): |
* will be broken. |
return("HP300"); |
* - TERMP_BRTRSP: Consider trailing whitespace significant |
case (ARCH_hppa): |
* when deciding whether the chunk fits or not. |
return("HPPA"); |
* - TERMP_BRIND: If the chunk does not fit and the output line has |
case (ARCH_hppa64): |
* to be broken, start the next line at the right margin instead |
return("HPPA64"); |
* of at the offset. Used together with TERMP_NOBREAK for the tags |
case (ARCH_i386): |
* in various kinds of tagged lists. |
return("i386"); |
* - TERMP_HANG: Do not break the output line at the right margin, |
case (ARCH_landisk): |
* append the next chunk after it even if this one is too long. |
return("LANDISK"); |
* To be used together with TERMP_NOBREAK. |
case (ARCH_luna88k): |
* - TERMP_NOPAD: Start writing at the current position, |
return("Luna88k"); |
* do not pad with blank characters up to the offset. |
case (ARCH_mac68k): |
*/ |
return("Mac68k"); |
void |
case (ARCH_macppc): |
term_flushln(struct termp *p) |
return("MacPPC"); |
{ |
case (ARCH_mvme68k): |
size_t i; /* current input position in p->buf */ |
return("MVME68k"); |
int ntab; /* number of tabs to prepend */ |
case (ARCH_mvme88k): |
size_t vis; /* current visual position on output */ |
return("MVME88k"); |
size_t vbl; /* number of blanks to prepend to output */ |
case (ARCH_mvmeppc): |
size_t vend; /* end of word visual position on output */ |
return("MVMEPPC"); |
size_t bp; /* visual right border position */ |
case (ARCH_pmax): |
size_t dv; /* temporary for visual pos calculations */ |
return("PMAX"); |
size_t j; /* temporary loop index for p->buf */ |
case (ARCH_sgi): |
size_t jhy; /* last hyph before overflow w/r/t j */ |
return("SGI"); |
size_t maxvis; /* output position of visible boundary */ |
case (ARCH_socppc): |
|
return("SOCPPC"); |
vbl = (p->flags & TERMP_NOPAD) || p->offset < p->viscol ? 0 : |
case (ARCH_sparc): |
p->offset - p->viscol; |
return("SPARC"); |
if (p->minbl && vbl < p->minbl) |
case (ARCH_sparc64): |
vbl = p->minbl; |
return("SPARC64"); |
maxvis = p->rmargin > p->viscol + vbl ? |
case (ARCH_sun3): |
p->rmargin - p->viscol - vbl : 0; |
return("Sun3"); |
bp = !(p->flags & TERMP_NOBREAK) ? maxvis : |
case (ARCH_vax): |
p->maxrmargin > p->viscol + vbl ? |
return("VAX"); |
p->maxrmargin - p->viscol - vbl : 0; |
case (ARCH_zaurus): |
vis = vend = 0; |
return("Zaurus"); |
i = 0; |
default: |
|
break; |
while (i < p->col) { |
|
/* |
|
* Handle literal tab characters: collapse all |
|
* subsequent tabs into a single huge set of spaces. |
|
*/ |
|
ntab = 0; |
|
while (i < p->col && p->buf[i] == '\t') { |
|
vend = term_tab_next(vis); |
|
vbl += vend - vis; |
|
vis = vend; |
|
ntab++; |
|
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 (' ' == p->buf[j] || '\t' == p->buf[j]) |
|
break; |
|
|
|
/* Back over 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] || |
|
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]); |
|
} |
|
|
|
/* |
|
* Find out whether we would exceed the right margin. |
|
* If so, break to the next line. |
|
*/ |
|
if (vend > bp && 0 == jhy && vis > 0 && |
|
(p->flags & TERMP_BRNEVER) == 0) { |
|
vend -= vis; |
|
endline(p); |
|
|
|
/* Use pending tabs on the new line. */ |
|
|
|
vbl = 0; |
|
while (ntab--) |
|
vbl = term_tab_next(vbl); |
|
|
|
/* Re-establish indentation. */ |
|
|
|
if (p->flags & TERMP_BRIND) |
|
vbl += p->rmargin; |
|
else |
|
vbl += p->offset; |
|
maxvis = p->rmargin > vbl ? p->rmargin - vbl : 0; |
|
bp = !(p->flags & TERMP_NOBREAK) ? maxvis : |
|
p->maxrmargin > vbl ? p->maxrmargin - vbl : 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 (i < p->col && ' ' == p->buf[i]) |
|
i++; |
|
dv = (i - j) * (*p->width)(p, ' '); |
|
vbl += dv; |
|
vend += dv; |
|
break; |
|
} |
|
if (ASCII_NBRSP == p->buf[i]) { |
|
vbl += (*p->width)(p, ' '); |
|
continue; |
|
} |
|
if (ASCII_BREAK == p->buf[i]) |
|
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; |
|
} |
|
|
|
(*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 > vbl) |
|
vis -= vbl; |
|
else |
|
vis = 0; |
|
|
|
p->col = 0; |
|
p->minbl = p->trailspace; |
|
p->flags &= ~(TERMP_BACKAFTER | TERMP_BACKBEFORE | TERMP_NOPAD); |
|
|
|
/* Trailing whitespace is significant in some columns. */ |
|
if (vis && vbl && (TERMP_BRTRSP & p->flags)) |
|
vis += vbl; |
|
|
|
/* If the column was overrun, break the line. */ |
|
if ((p->flags & TERMP_NOBREAK) == 0 || |
|
((p->flags & TERMP_HANG) == 0 && |
|
vis + p->trailspace * (*p->width)(p, ' ') > maxvis)) |
|
endline(p); |
} |
} |
|
|
|
static void |
|
endline(struct termp *p) |
|
{ |
|
if ((p->flags & (TERMP_NEWMC | TERMP_ENDMC)) == TERMP_ENDMC) { |
|
p->mc = NULL; |
|
p->flags &= ~TERMP_ENDMC; |
|
} |
|
if (p->mc != NULL) { |
|
if (p->viscol && p->maxrmargin >= p->viscol) |
|
(*p->advance)(p, p->maxrmargin - p->viscol + 1); |
|
p->flags |= TERMP_NOBUF | TERMP_NOSPACE; |
|
term_word(p, p->mc); |
|
p->flags &= ~(TERMP_NOBUF | TERMP_NEWMC); |
|
} |
|
p->viscol = 0; |
|
p->minbl = 0; |
|
(*p->endline)(p); |
|
} |
|
|
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) { |
p->flags |= TERMP_NOSPACE; |
case (VOL_AMD): |
if (p->col || p->viscol) |
return("OpenBSD Ancestral Manual Documents"); |
term_flushln(p); |
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; |
|
} |
|
|
|
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->minbl = 0; |
|
if (0 < p->skipvsp) |
|
p->skipvsp--; |
|
else |
|
(*p->endline)(p); |
} |
} |
|
|
|
/* Swap current and previous font; for \fP and .ft P */ |
|
void |
|
term_fontlast(struct termp *p) |
|
{ |
|
enum termfont f; |
|
|
static char * |
f = p->fontl; |
msec2a(enum mdoc_msec msec) |
p->fontl = p->fontq[p->fonti]; |
|
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) |
{ |
{ |
|
|
switch (msec) { |
p->fontl = p->fontq[p->fonti]; |
case(MSEC_1): |
p->fontq[p->fonti] = f; |
return("1"); |
} |
case(MSEC_2): |
|
return("2"); |
/* Set font, save previous. */ |
case(MSEC_3): |
void |
return("3"); |
term_fontpush(struct termp *p, enum termfont f) |
case(MSEC_3f): |
{ |
return("3f"); |
|
case(MSEC_3p): |
p->fontl = p->fontq[p->fonti]; |
return("3p"); |
if (++p->fonti == p->fontsz) { |
case(MSEC_4): |
p->fontsz += 8; |
return("4"); |
p->fontq = mandoc_reallocarray(p->fontq, |
case(MSEC_5): |
p->fontsz, sizeof(*p->fontq)); |
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->fontq[p->fonti] = f; |
} |
} |
|
|
|
/* Flush to make the saved pointer current again. */ |
|
void |
|
term_fontpopq(struct termp *p, int i) |
|
{ |
|
|
static size_t |
assert(i >= 0); |
ttitle2a(char *dst, enum mdoc_vol vol, enum mdoc_msec msec, |
if (p->fonti > i) |
enum mdoc_arch arch, size_t sz) |
p->fonti = i; |
|
} |
|
|
|
/* Pop one font off the stack. */ |
|
void |
|
term_fontpop(struct termp *p) |
{ |
{ |
char *p; |
|
size_t ssz; |
|
|
|
if (NULL == (p = vol2a(vol))) |
assert(p->fonti); |
switch (msec) { |
p->fonti--; |
case (MSEC_1): |
} |
/* FALLTHROUGH */ |
|
case (MSEC_6): |
/* |
/* FALLTHROUGH */ |
* Handle pwords, partial words, which may be either a single word or a |
case (MSEC_7): |
* phrase that cannot be broken down (such as a literal string). This |
p = vol2a(VOL_URM); |
* handles word styling. |
|
*/ |
|
void |
|
term_word(struct termp *p, const char *word) |
|
{ |
|
struct roffsu su; |
|
const char nbrsp[2] = { ASCII_NBRSP, 0 }; |
|
const char *seq, *cp; |
|
int sz, uc; |
|
size_t csz, lsz, ssz; |
|
enum mandoc_esc esc; |
|
|
|
if ((p->flags & TERMP_NOBUF) == 0) { |
|
if ((p->flags & TERMP_NOSPACE) == 0) { |
|
if ((p->flags & TERMP_KEEP) == 0) { |
|
bufferc(p, ' '); |
|
if (p->flags & TERMP_SENTENCE) |
|
bufferc(p, ' '); |
|
} else |
|
bufferc(p, ASCII_NBRSP); |
|
} |
|
if (p->flags & TERMP_PREKEEP) |
|
p->flags |= TERMP_KEEP; |
|
if (p->flags & TERMP_NONOSPACE) |
|
p->flags |= TERMP_NOSPACE; |
|
else |
|
p->flags &= ~TERMP_NOSPACE; |
|
p->flags &= ~(TERMP_SENTENCE | TERMP_NONEWLINE); |
|
p->skipvsp = 0; |
|
} |
|
|
|
while ('\0' != *word) { |
|
if ('\\' != *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; |
|
} |
|
|
|
word++; |
|
esc = mandoc_escape(&word, &seq, &sz); |
|
if (ESCAPE_ERROR == esc) |
|
continue; |
|
|
|
switch (esc) { |
|
case ESCAPE_UNICODE: |
|
uc = mchars_num2uc(seq + 1, sz - 1); |
break; |
break; |
case (MSEC_8): |
case ESCAPE_NUMBERED: |
p = vol2a(VOL_SMM); |
uc = mchars_num2char(seq, sz); |
|
if (uc < 0) |
|
continue; |
break; |
break; |
case (MSEC_2): |
case ESCAPE_SPECIAL: |
/* FALLTHROUGH */ |
if (p->enc == TERMENC_ASCII) { |
case (MSEC_3): |
cp = mchars_spec2str(seq, sz, &ssz); |
/* FALLTHROUGH */ |
if (cp != NULL) |
case (MSEC_4): |
encode(p, cp, ssz); |
/* FALLTHROUGH */ |
} else { |
case (MSEC_5): |
uc = mchars_spec2cp(seq, sz); |
p = vol2a(VOL_PRM); |
if (uc > 0) |
break; |
encode1(p, uc); |
case (MSEC_9): |
} |
p = vol2a(VOL_KM); |
continue; |
break; |
case ESCAPE_FONTBOLD: |
|
term_fontrepl(p, TERMFONT_BOLD); |
|
continue; |
|
case ESCAPE_FONTITALIC: |
|
term_fontrepl(p, TERMFONT_UNDER); |
|
continue; |
|
case ESCAPE_FONTBI: |
|
term_fontrepl(p, TERMFONT_BI); |
|
continue; |
|
case ESCAPE_FONT: |
|
case ESCAPE_FONTROMAN: |
|
term_fontrepl(p, TERMFONT_NONE); |
|
continue; |
|
case ESCAPE_FONTPREV: |
|
term_fontlast(p); |
|
continue; |
|
case ESCAPE_NOSPACE: |
|
if (p->flags & TERMP_BACKAFTER) |
|
p->flags &= ~TERMP_BACKAFTER; |
|
else if (*word == '\0') |
|
p->flags |= (TERMP_NOSPACE | TERMP_NONEWLINE); |
|
continue; |
|
case ESCAPE_HORIZ: |
|
if (a2roffsu(seq, &su, SCALE_EM) == 0) |
|
continue; |
|
uc = term_hspan(p, &su) / 24; |
|
if (uc > 0) |
|
while (uc-- > 0) |
|
bufferc(p, ASCII_NBRSP); |
|
else if (p->col > (size_t)(-uc)) |
|
p->col += uc; |
|
else { |
|
uc += p->col; |
|
p->col = 0; |
|
if (p->offset > (size_t)(-uc)) { |
|
p->ti += uc; |
|
p->offset += uc; |
|
} else { |
|
p->ti -= p->offset; |
|
p->offset = 0; |
|
} |
|
} |
|
continue; |
|
case ESCAPE_HLINE: |
|
if (a2roffsu(seq, &su, SCALE_EM) == 0) |
|
continue; |
|
uc = term_hspan(p, &su) / 24; |
|
if (uc <= 0) { |
|
if (p->rmargin <= p->offset) |
|
continue; |
|
lsz = p->rmargin - p->offset; |
|
} else |
|
lsz = uc; |
|
while (sz && |
|
strchr(" %&()*+-./0123456789:<=>", *seq)) { |
|
seq++; |
|
sz--; |
|
} |
|
if (sz && strchr("cifMmnPpuv", *seq)) { |
|
seq++; |
|
sz--; |
|
} |
|
if (sz == 0) |
|
uc = -1; |
|
else if (*seq == '\\') { |
|
seq++; |
|
esc = mandoc_escape(&seq, &cp, &sz); |
|
switch (esc) { |
|
case ESCAPE_UNICODE: |
|
uc = mchars_num2uc(cp + 1, sz - 1); |
|
break; |
|
case ESCAPE_NUMBERED: |
|
uc = mchars_num2char(cp, sz); |
|
break; |
|
case ESCAPE_SPECIAL: |
|
uc = mchars_spec2cp(cp, sz); |
|
break; |
|
default: |
|
uc = -1; |
|
break; |
|
} |
|
} else |
|
uc = *seq; |
|
if (uc < 0x20 || (uc > 0x7E && uc < 0xA0)) |
|
uc = '_'; |
|
if (p->enc == TERMENC_ASCII) { |
|
cp = ascii_uc2str(uc); |
|
csz = term_strlen(p, cp); |
|
ssz = strlen(cp); |
|
} else |
|
csz = (*p->width)(p, uc); |
|
while (lsz >= csz) { |
|
if (p->enc == TERMENC_ASCII) |
|
encode(p, cp, ssz); |
|
else |
|
encode1(p, uc); |
|
lsz -= csz; |
|
} |
|
continue; |
|
case ESCAPE_SKIPCHAR: |
|
p->flags |= TERMP_BACKAFTER; |
|
continue; |
|
case ESCAPE_OVERSTRIKE: |
|
cp = seq + sz; |
|
while (seq < cp) { |
|
if (*seq == '\\') { |
|
mandoc_escape(&seq, NULL, NULL); |
|
continue; |
|
} |
|
encode1(p, *seq++); |
|
if (seq < cp) { |
|
if (p->flags & TERMP_BACKBEFORE) |
|
p->flags |= TERMP_BACKAFTER; |
|
else |
|
p->flags |= TERMP_BACKBEFORE; |
|
} |
|
} |
|
/* Trim trailing backspace/blank pair. */ |
|
if (p->col > 2 && |
|
(p->buf[p->col - 1] == ' ' || |
|
p->buf[p->col - 1] == '\t')) |
|
p->col -= 2; |
|
continue; |
default: |
default: |
/* FIXME: capitalise. */ |
continue; |
if (NULL == (p = msec2a(msec))) |
|
p = msec2a(MSEC_local); |
|
break; |
|
} |
} |
assert(p); |
|
|
|
if ((ssz = strlcpy(dst, p, sz)) >= sz) |
/* |
return(ssz); |
* Common handling for Unicode and numbered |
|
* character escape sequences. |
|
*/ |
|
|
if ((p = arch2a(arch))) { |
if (p->enc == TERMENC_ASCII) { |
if ((ssz = strlcat(dst, " (", sz)) >= sz) |
cp = ascii_uc2str(uc); |
return(ssz); |
encode(p, cp, strlen(cp)); |
if ((ssz = strlcat(dst, p, sz)) >= sz) |
} else { |
return(ssz); |
if ((uc < 0x20 && uc != 0x09) || |
if ((ssz = strlcat(dst, ")", sz)) >= sz) |
(uc > 0x7E && uc < 0xA0)) |
return(ssz); |
uc = 0xFFFD; |
|
encode1(p, uc); |
|
} |
} |
} |
|
p->flags &= ~TERMP_NBRWORD; |
return(ssz); |
|
} |
} |
|
|
|
static void |
static int |
adjbuf(struct termp *p, size_t sz) |
termprint_r(size_t cols, size_t indent, const struct mdoc_node *node) |
|
{ |
{ |
|
|
return(1); |
if (0 == p->maxcols) |
|
p->maxcols = 1024; |
|
while (sz >= p->maxcols) |
|
p->maxcols <<= 2; |
|
|
|
p->buf = mandoc_reallocarray(p->buf, p->maxcols, sizeof(int)); |
} |
} |
|
|
|
static void |
|
bufferc(struct termp *p, char c) |
|
{ |
|
if (p->flags & TERMP_NOBUF) { |
|
(*p->letter)(p, c); |
|
return; |
|
} |
|
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 |
static void |
termprint_tail(size_t cols, const struct mdoc_meta *meta) |
encode1(struct termp *p, int c) |
{ |
{ |
struct tm *tm; |
enum termfont f; |
char *buf, *os; |
|
size_t sz, osz, ssz, i; |
|
|
|
if (NULL == (buf = malloc(cols))) |
if (p->flags & TERMP_NOBUF) { |
err(1, "malloc"); |
(*p->letter)(p, c); |
if (NULL == (os = malloc(cols))) |
return; |
err(1, "malloc"); |
} |
|
|
tm = localtime(&meta->date); |
if (p->col + 7 >= p->maxcols) |
if (NULL == strftime(buf, cols, "%B %d, %Y", tm)) |
adjbuf(p, p->col + 7); |
err(1, "strftime"); |
|
|
|
osz = strlcpy(os, meta->os, cols); |
f = (c == ASCII_HYPH || c > 127 || isgraph(c)) ? |
|
p->fontq[p->fonti] : TERMFONT_NONE; |
|
|
sz = strlen(buf); |
if (p->flags & TERMP_BACKBEFORE) { |
ssz = sz + osz + 1; |
if (p->buf[p->col - 1] == ' ' || p->buf[p->col - 1] == '\t') |
|
p->col--; |
|
else |
|
p->buf[p->col++] = 8; |
|
p->flags &= ~TERMP_BACKBEFORE; |
|
} |
|
if (TERMFONT_UNDER == f || TERMFONT_BI == f) { |
|
p->buf[p->col++] = '_'; |
|
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; |
|
if (p->flags & TERMP_BACKAFTER) { |
|
p->flags |= TERMP_BACKBEFORE; |
|
p->flags &= ~TERMP_BACKAFTER; |
|
} |
|
} |
|
|
if (ssz > cols) { |
static void |
ssz -= cols; |
encode(struct termp *p, const char *word, size_t sz) |
assert(ssz <= osz); |
{ |
os[osz - ssz] = 0; |
size_t i; |
ssz = 1; |
|
} else |
|
ssz = cols - ssz + 1; |
|
|
|
printf("%s", os); |
if (p->flags & TERMP_NOBUF) { |
for (i = 0; i < ssz; i++) |
for (i = 0; i < sz; i++) |
printf(" "); |
(*p->letter)(p, word[i]); |
|
return; |
|
} |
|
|
printf("%s\n", buf); |
if (p->col + 2 + (sz * 5) >= p->maxcols) |
|
adjbuf(p, p->col + 2 + (sz * 5)); |
|
|
free(buf); |
for (i = 0; i < sz; i++) { |
free(os); |
if (ASCII_HYPH == word[i] || |
|
isgraph((unsigned char)word[i])) |
|
encode1(p, word[i]); |
|
else { |
|
p->buf[p->col++] = word[i]; |
|
|
|
/* |
|
* Postpone the effect of \z while handling |
|
* an overstrike sequence from ascii_uc2str(). |
|
*/ |
|
|
|
if (word[i] == '\b' && |
|
(p->flags & TERMP_BACKBEFORE)) { |
|
p->flags &= ~TERMP_BACKBEFORE; |
|
p->flags |= TERMP_BACKAFTER; |
|
} |
|
} |
|
} |
} |
} |
|
|
|
void |
|
term_setwidth(struct termp *p, const char *wstr) |
|
{ |
|
struct roffsu su; |
|
int iop, width; |
|
|
static void |
iop = 0; |
termprint_head(size_t cols, const struct mdoc_meta *meta) |
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 |
|
term_len(const struct termp *p, size_t sz) |
{ |
{ |
char *msec, *buf, *title; |
|
size_t ssz, tsz, ttsz, i; |
|
|
|
if (NULL == (buf = malloc(cols))) |
return (*p->width)(p, ' ') * sz; |
err(1, "malloc"); |
} |
if (NULL == (title = malloc(cols))) |
|
err(1, "malloc"); |
|
|
|
/* Format the manual page header. */ |
static size_t |
|
cond_width(const struct termp *p, int c, int *skip) |
|
{ |
|
|
tsz = ttitle2a(buf, meta->vol, meta->msec, meta->arch, cols); |
if (*skip) { |
ttsz = strlcpy(title, meta->title, cols); |
(*skip) = 0; |
|
return 0; |
|
} else |
|
return (*p->width)(p, c); |
|
} |
|
|
if (NULL == (msec = msec2a(meta->msec))) |
size_t |
msec = ""; |
term_strlen(const struct termp *p, const char *cp) |
|
{ |
|
size_t sz, rsz, i; |
|
int ssz, skip, uc; |
|
const char *seq, *rhs; |
|
enum mandoc_esc esc; |
|
static const char rej[] = { '\\', ASCII_NBRSP, ASCII_HYPH, |
|
ASCII_BREAK, '\0' }; |
|
|
ssz = (2 * (ttsz + 2 + strlen(msec))) + tsz + 2; |
/* |
|
* Account for escaped sequences within string length |
|
* calculations. This follows the logic in term_word() as we |
|
* must calculate the width of produced strings. |
|
*/ |
|
|
if (ssz > cols) { |
sz = 0; |
if ((ssz -= cols) % 2) |
skip = 0; |
ssz++; |
while ('\0' != *cp) { |
ssz /= 2; |
rsz = strcspn(cp, rej); |
|
for (i = 0; i < rsz; i++) |
assert(ssz <= ttsz); |
sz += cond_width(p, *cp++, &skip); |
title[ttsz - ssz] = 0; |
|
ssz = 1; |
|
} else |
|
ssz = ((cols - ssz) / 2) + 1; |
|
|
|
printf("%s(%s)", title, msec); |
switch (*cp) { |
|
case '\\': |
|
cp++; |
|
esc = mandoc_escape(&cp, &seq, &ssz); |
|
if (ESCAPE_ERROR == esc) |
|
continue; |
|
|
for (i = 0; i < ssz; i++) |
rhs = NULL; |
printf(" "); |
|
|
|
printf("%s", buf); |
switch (esc) { |
|
case ESCAPE_UNICODE: |
|
uc = mchars_num2uc(seq + 1, ssz - 1); |
|
break; |
|
case ESCAPE_NUMBERED: |
|
uc = mchars_num2char(seq, ssz); |
|
if (uc < 0) |
|
continue; |
|
break; |
|
case ESCAPE_SPECIAL: |
|
if (p->enc == TERMENC_ASCII) { |
|
rhs = mchars_spec2str(seq, ssz, &rsz); |
|
if (rhs != NULL) |
|
break; |
|
} else { |
|
uc = mchars_spec2cp(seq, ssz); |
|
if (uc > 0) |
|
sz += cond_width(p, uc, &skip); |
|
} |
|
continue; |
|
case ESCAPE_SKIPCHAR: |
|
skip = 1; |
|
continue; |
|
case ESCAPE_OVERSTRIKE: |
|
rsz = 0; |
|
rhs = seq + ssz; |
|
while (seq < rhs) { |
|
if (*seq == '\\') { |
|
mandoc_escape(&seq, NULL, NULL); |
|
continue; |
|
} |
|
i = (*p->width)(p, *seq++); |
|
if (rsz < i) |
|
rsz = i; |
|
} |
|
sz += rsz; |
|
continue; |
|
default: |
|
continue; |
|
} |
|
|
for (i = 0; i < ssz; i++) |
/* |
printf(" "); |
* Common handling for Unicode and numbered |
|
* character escape sequences. |
|
*/ |
|
|
printf("%s(%s)\n\n", title, msec); |
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; |
|
} |
|
} |
|
|
free(title); |
if (skip) { |
free(buf); |
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: |
|
sz += cond_width(p, ' ', &skip); |
|
cp++; |
|
break; |
|
case ASCII_HYPH: |
|
sz += cond_width(p, '-', &skip); |
|
cp++; |
|
break; |
|
default: |
|
break; |
|
} |
|
} |
|
|
|
return sz; |
|
} |
|
|
int |
int |
termprint(const struct mdoc_node *node, |
term_vspan(const struct termp *p, const struct roffsu *su) |
const struct mdoc_meta *meta) |
|
{ |
{ |
size_t cols; |
double r; |
|
int ri; |
|
|
if (ERR == setupterm(NULL, STDOUT_FILENO, NULL)) |
switch (su->unit) { |
return(0); |
case SCALE_BU: |
|
r = su->scale / 40.0; |
cols = columns < 60 ? 60 : (size_t)columns; |
break; |
|
case SCALE_CM: |
termprint_head(cols, meta); |
r = su->scale * 6.0 / 2.54; |
if ( ! termprint_r(cols, 0, node)) |
break; |
return(0); |
case SCALE_FS: |
termprint_tail(cols, meta); |
r = su->scale * 65536.0 / 40.0; |
return(1); |
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 / 12.0; |
|
break; |
|
case SCALE_EN: |
|
case SCALE_EM: |
|
r = su->scale * 0.6; |
|
break; |
|
case SCALE_VS: |
|
r = su->scale; |
|
break; |
|
default: |
|
abort(); |
|
} |
|
ri = r > 0.0 ? r + 0.4995 : r - 0.4995; |
|
return ri < 66 ? ri : 1; |
} |
} |
|
|
|
/* |
|
* Convert a scaling width to basic units, rounding down. |
|
*/ |
|
int |
|
term_hspan(const struct termp *p, const struct roffsu *su) |
|
{ |
|
|
|
return (*p->hspan)(p, su); |
|
} |