void
term_tab_set(const struct termp *p, const char *arg)
{
static int recording_period;
struct roffsu su;
struct tablist *tl;
size_t pos;
int add;
/* Special arguments: clear all tabs or switch lists. */
if (arg == NULL) {
tabs.a.n = tabs.p.n = 0;
recording_period = 0;
if (tabs.d == 0) {
a2roffsu(".8i", &su, SCALE_IN);
tabs.d = term_hspan(p, &su) / 24;
}
return;
}
if (arg[0] == 'T' && arg[1] == '\0') {
recording_period = 1;
return;
}
/* Parse the sign, the number, and the unit. */
if (*arg == '+') {
add = 1;
arg++;
} else
add = 0;
if (a2roffsu(arg, &su, SCALE_EM) == NULL)
return;
/* Select the list, and extend it if it is full. */
tl = recording_period ? &tabs.p : &tabs.a;
if (tl->n >= tl->s) {
tl->s += 8;
tl->t = mandoc_reallocarray(tl->t, tl->s, sizeof(*tl->t));
}
/* Append the new position. */
pos = term_hspan(p, &su);
tl->t[tl->n] = pos;
if (add && tl->n)
tl->t[tl->n] += tl->t[tl->n - 1];
tl->n++;
}
static int
pre_IP(DECL_ARGS)
{
struct roffsu su;
const struct roff_node *nn;
int len, savelit;
switch (n->type) {
case ROFFT_BODY:
p->flags |= TERMP_NOSPACE;
break;
case ROFFT_HEAD:
p->flags |= TERMP_NOBREAK;
p->trailspace = 1;
break;
case ROFFT_BLOCK:
print_bvspace(p, n, mt->pardist);
/* FALLTHROUGH */
default:
return 1;
}
/* Calculate the offset from the optional second argument. */
if ((nn = n->parent->head->child) != NULL &&
(nn = nn->next) != NULL &&
a2roffsu(nn->string, &su, SCALE_EN)) {
len = term_hspan(p, &su) / 24;
if (len < 0 && (size_t)(-len) > mt->offset)
len = -mt->offset;
else if (len > SHRT_MAX)
len = term_len(p, p->defindent);
mt->lmargin[mt->lmargincur] = len;
} else
len = mt->lmargin[mt->lmargincur];
switch (n->type) {
case ROFFT_HEAD:
p->offset = mt->offset;
p->rmargin = mt->offset + len;
savelit = MANT_LITERAL & mt->fl;
mt->fl &= ~MANT_LITERAL;
if (n->child)
print_man_node(p, mt, n->child, meta);
if (savelit)
mt->fl |= MANT_LITERAL;
return 0;
case ROFFT_BODY:
p->offset = mt->offset + len;
p->rmargin = p->maxrmargin;
break;
default:
break;
}
return 1;
}
static int
man_br_pre(MAN_ARGS)
{
struct roffsu su;
struct htmlpair tag;
SCALE_VS_INIT(&su, 1);
if (MAN_sp == n->tok) {
if (NULL != (n = n->child))
if ( ! a2roffsu(n->string, &su, SCALE_VS))
SCALE_VS_INIT(&su, atoi(n->string));
} else
su.scale = 0.0;
bufinit(h);
bufcat_su(h, "height", &su);
PAIR_STYLE_INIT(&tag, h);
print_otag(h, TAG_DIV, 1, &tag);
/* So the div isn't empty: */
print_text(h, "\\~");
return(0);
}
static int
termp_sp_pre(DECL_ARGS)
{
struct roffsu su;
int i, len;
switch (n->tok) {
case MDOC_sp:
if (n->child) {
if ( ! a2roffsu(n->child->string, &su, SCALE_VS))
su.scale = 1.0;
len = term_vspan(p, &su);
} else
len = 1;
break;
case MDOC_br:
len = 0;
break;
default:
len = 1;
fn_prio = 0;
break;
}
if (0 == len)
term_newln(p);
else if (len < 0)
p->skipvsp -= len;
else
for (i = 0; i < len; i++)
term_vspace(p);
return 0;
}
static int
pre_RS(DECL_ARGS)
{
struct roffsu su;
switch (n->type) {
case MAN_BLOCK:
term_newln(p);
return(1);
case MAN_HEAD:
return(0);
default:
break;
}
n = n->parent->head;
n->aux = SHRT_MAX + 1;
if (n->child != NULL && a2roffsu(n->child->string, &su, SCALE_EN))
n->aux = term_hspan(p, &su);
if (n->aux < 0 && (size_t)(-n->aux) > mt->offset)
n->aux = -mt->offset;
else if (n->aux > SHRT_MAX)
n->aux = term_len(p, p->defindent);
mt->offset += n->aux;
p->offset = mt->offset;
p->rmargin = p->maxrmargin;
if (++mt->lmarginsz < MAXMARGINS)
mt->lmargincur = mt->lmarginsz;
mt->lmargin[mt->lmargincur] = mt->lmargin[mt->lmargincur - 1];
return(1);
}
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);
}
static int
a2width(const struct roff_node *n, struct roffsu *su)
{
if (n->type != ROFFT_TEXT)
return 0;
return a2roffsu(n->string, su, SCALE_EN) != NULL;
}
/* ARGSUSED */
static int
mdoc_sp_pre(MDOC_ARGS)
{
struct roffsu su;
struct htmlpair tag;
SCALE_VS_INIT(&su, 1);
if (MDOC_sp == n->tok) {
if (n->child)
a2roffsu(n->child->string, &su, SCALE_VS);
} else
su.scale = 0;
bufinit(h);
bufcat_su(h, "height", &su);
PAIR_STYLE_INIT(&tag, h);
print_otag(h, TAG_DIV, 1, &tag);
/* So the div isn't empty: */
print_text(h, "\\~");
return(0);
}
/*
* Set up the indentation for a list item; used from pre_it().
*/
static void
print_width(const struct mdoc_bl *bl, const struct roff_node *child)
{
char buf[24];
struct roffsu su;
const char *end;
int numeric, remain, sz, chsz;
numeric = 1;
remain = 0;
/* Convert the width into a number (of characters). */
if (bl->width == NULL)
sz = (bl->type == LIST_hang) ? 6 : 0;
else {
end = a2roffsu(bl->width, &su, SCALE_MAX);
if (end == NULL || *end != '\0')
sz = man_strlen(bl->width);
else if (SCALE_EN == su.unit)
sz = su.scale;
else {
sz = 0;
numeric = 0;
}
}
/* XXX Rough estimation, might have multiple parts. */
if (bl->type == LIST_enum)
chsz = (bl->count > 8) + 1;
else if (child != NULL && child->type == ROFFT_TEXT)
chsz = man_strlen(child->string);
else
chsz = 0;
/* Maybe we are inside an enclosing list? */
mid_it();
/*
* Save our own indentation,
* such that child lists can use it.
*/
Bl_stack[Bl_stack_len++] = sz + 2;
/* Set up the current list. */
if (chsz > sz && bl->type != LIST_tag)
print_block(".HP", 0);
else {
print_block(".TP", 0);
remain = sz + 2;
}
if (numeric) {
(void)snprintf(buf, sizeof(buf), "%dn", sz + 2);
print_word(buf);
} else
print_word(bl->width);
TPremain = remain;
}
/*
* Calculate the scaling unit passed in a `-width' argument. This uses
* either a native scaling unit (e.g., 1i, 2m) or the string length of
* the value.
*/
static void
a2width(const char *p, struct roffsu *su)
{
if ( ! a2roffsu(p, su, SCALE_MAX)) {
su->unit = SCALE_BU;
su->scale = (int)strlen(p);
}
}
static size_t
a2height(const struct termp *p, const char *cp)
{
struct roffsu su;
if ( ! a2roffsu(cp, &su, SCALE_VS))
SCALE_VS_INIT(&su, atoi(cp));
return(term_vspan(p, &su));
}
static int
a2width(const struct termp *p, const char *cp)
{
struct roffsu su;
if ( ! a2roffsu(cp, &su, SCALE_BU))
return(-1);
return((int)term_hspan(p, &su));
}
/*
* Calculate the scaling unit passed in a `-width' argument. This uses
* either a native scaling unit (e.g., 1i, 2m) or the string length of
* the value.
*/
static void
a2width(const char *p, struct roffsu *su)
{
if (a2roffsu(p, su, SCALE_MAX) < 2) {
su->unit = SCALE_EN;
su->scale = html_strlen(p);
} else if (su->scale < 0.0)
su->scale = 0.0;
}
static int
a2width(const struct man_node *n, struct roffsu *su)
{
if (MAN_TEXT != n->type)
return(0);
if (a2roffsu(n->string, su, SCALE_EN))
return(1);
return(0);
}
static int
a2width(const struct termp *p, const char *v)
{
struct roffsu su;
if (a2roffsu(v, &su, SCALE_MAX) < 2) {
SCALE_HS_INIT(&su, term_strlen(p, v));
su.scale /= term_strlen(p, "0");
}
return term_hspan(p, &su) / 24;
}
static size_t
a2width(const struct termp *p, const char *v)
{
struct roffsu su;
assert(v);
if ( ! a2roffsu(v, &su, SCALE_MAX))
SCALE_HS_INIT(&su, term_strlen(p, v));
return(term_hspan(p, &su));
}
static size_t
a2height(const struct termp *p, const char *v)
{
struct roffsu su;
assert(v);
if ( ! a2roffsu(v, &su, SCALE_VS))
SCALE_VS_INIT(&su, term_len(p, 1));
return(term_vspan(p, &su));
}
/*
* Set up the indentation for a list item; used from pre_it().
*/
static void
print_width(const char *v, const struct mdoc_node *child, size_t defsz)
{
char buf[24];
struct roffsu su;
size_t sz, chsz;
int numeric, remain;
numeric = 1;
remain = 0;
/* Convert v into a number (of characters). */
if (NULL == v)
sz = defsz;
else if (a2roffsu(v, &su, SCALE_MAX)) {
if (SCALE_EN == su.unit)
sz = su.scale;
else {
sz = 0;
numeric = 0;
}
} else
sz = strlen(v);
/* XXX Rough estimation, might have multiple parts. */
chsz = (NULL != child && MDOC_TEXT == child->type) ?
strlen(child->string) : 0;
/* Maybe we are inside an enclosing list? */
mid_it();
/*
* Save our own indentation,
* such that child lists can use it.
*/
Bl_stack[Bl_stack_len++] = sz + 2;
/* Set up the current list. */
if (defsz && chsz > sz)
print_block(".HP", 0);
else {
print_block(".TP", 0);
remain = sz + 2;
}
if (numeric) {
(void)snprintf(buf, sizeof(buf), "%zun", sz + 2);
print_word(buf);
} else
print_word(v);
TPremain = remain;
}
static int
pre_sp(DECL_ARGS)
{
struct roffsu su;
int i, len;
if ((NULL == n->prev && n->parent)) {
switch (n->parent->tok) {
case MAN_SH:
case MAN_SS:
case MAN_PP:
case MAN_LP:
case MAN_P:
return 0;
default:
break;
}
}
if (n->tok == MAN_br)
len = 0;
else if (n->child == NULL)
len = 1;
else {
if ( ! a2roffsu(n->child->string, &su, SCALE_VS))
su.scale = 1.0;
len = term_vspan(p, &su);
}
if (len == 0)
term_newln(p);
else if (len < 0)
p->skipvsp -= len;
else
for (i = 0; i < len; i++)
term_vspace(p);
/*
* Handle an explicit break request in the same way
* as an overflowing line.
*/
if (p->flags & TERMP_BRIND) {
p->offset = p->rmargin;
p->rmargin = p->maxrmargin;
p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
}
return 0;
}
static int
pre_PD(DECL_ARGS)
{
struct roffsu su;
n = n->child;
if (n == NULL) {
mt->pardist = 1;
return 0;
}
assert(n->type == ROFFT_TEXT);
if (a2roffsu(n->string, &su, SCALE_VS))
mt->pardist = term_vspan(p, &su);
return 0;
}
static void
print_offs(const char *v, int keywords)
{
char buf[24];
struct roffsu su;
const char *end;
int sz;
print_line(".RS", MMAN_Bk_susp);
/* Convert v into a number (of characters). */
if (NULL == v || '\0' == *v || (keywords && !strcmp(v, "left")))
sz = 0;
else if (keywords && !strcmp(v, "indent"))
sz = 6;
else if (keywords && !strcmp(v, "indent-two"))
sz = 12;
else {
end = a2roffsu(v, &su, SCALE_EN);
if (end == NULL || *end != '\0')
sz = man_strlen(v);
else if (SCALE_EN == su.unit)
sz = su.scale;
else {
/*
* XXX
* If we are inside an enclosing list,
* there is no easy way to add the two
* indentations because they are provided
* in terms of different units.
*/
print_word(v);
outflags |= MMAN_nl;
return;
}
}
/*
* We are inside an enclosing list.
* Add the two indentations.
*/
if (Bl_stack_len)
sz += Bl_stack[Bl_stack_len - 1];
(void)snprintf(buf, sizeof(buf), "%dn", sz);
print_word(buf);
outflags |= MMAN_nl;
}
/*
* Calculate the scaling unit passed in an `-offset' argument. This
* uses either a native scaling unit (e.g., 1i, 2m), one of a set of
* predefined strings (indent, etc.), or the string length of the value.
*/
static void
a2offs(const char *p, struct roffsu *su)
{
/* FIXME: "right"? */
if (0 == strcmp(p, "left"))
SCALE_HS_INIT(su, 0);
else if (0 == strcmp(p, "indent"))
SCALE_HS_INIT(su, INDENT);
else if (0 == strcmp(p, "indent-two"))
SCALE_HS_INIT(su, INDENT * 2);
else if ( ! a2roffsu(p, su, SCALE_MAX)) {
su->unit = SCALE_BU;
su->scale = (int)strlen(p);
}
}
static size_t
a2offs(const struct termp *p, const char *v)
{
struct roffsu su;
if ('\0' == *v)
return(0);
else if (0 == strcmp(v, "left"))
return(0);
else if (0 == strcmp(v, "indent"))
return(term_len(p, p->defindent + 1));
else if (0 == strcmp(v, "indent-two"))
return(term_len(p, (p->defindent + 1) * 2));
else if ( ! a2roffsu(v, &su, SCALE_MAX))
SCALE_HS_INIT(&su, term_strlen(p, v));
return(term_hspan(p, &su));
}
static int
pre_sp(DECL_ARGS)
{
struct roffsu su;
int i, len;
if ((NULL == n->prev && n->parent)) {
switch (n->parent->tok) {
case MAN_SH:
/* FALLTHROUGH */
case MAN_SS:
/* FALLTHROUGH */
case MAN_PP:
/* FALLTHROUGH */
case MAN_LP:
/* FALLTHROUGH */
case MAN_P:
/* FALLTHROUGH */
return(0);
default:
break;
}
}
if (n->tok == MAN_br)
len = 0;
else if (n->child == NULL)
len = 1;
else {
if ( ! a2roffsu(n->child->string, &su, SCALE_VS))
su.scale = 1.0;
len = term_vspan(p, &su);
}
if (len == 0)
term_newln(p);
else if (len < 0)
p->skipvsp -= len;
else
for (i = 0; i < len; i++)
term_vspace(p);
return(0);
}
static int
pre_in(DECL_ARGS)
{
struct roffsu su;
const char *cp;
size_t v;
int less;
term_newln(p);
if (NULL == n->child) {
p->offset = mt->offset;
return 0;
}
cp = n->child->string;
less = 0;
if ('-' == *cp)
less = -1;
else if ('+' == *cp)
less = 1;
else
cp--;
if ( ! a2roffsu(++cp, &su, SCALE_EN))
return 0;
v = (term_hspan(p, &su) + 11) / 24;
if (less < 0)
p->offset -= p->offset > v ? v : p->offset;
else if (less > 0)
p->offset += v;
else
p->offset = v;
if (p->offset > SHRT_MAX)
p->offset = term_len(p, p->defindent);
return 0;
}
static void
roff_term_pre_po(ROFF_TERM_ARGS)
{
struct roffsu su;
static int po, polast;
int ponew;
if (n->child != NULL &&
a2roffsu(n->child->string, &su, SCALE_EM) != NULL) {
ponew = term_hen(p, &su);
if (*n->child->string == '+' ||
*n->child->string == '-')
ponew += po;
} else
ponew = polast;
polast = po;
po = ponew;
ponew = po - polast + (int)p->tcol->offset;
p->tcol->offset = ponew > 0 ? ponew : 0;
}
static void
roff_term_pre_sp(ROFF_TERM_ARGS)
{
struct roffsu su;
int len;
if (n->child != NULL) {
if (a2roffsu(n->child->string, &su, SCALE_VS) == NULL)
su.scale = 1.0;
len = term_vspan(p, &su);
} else
len = 1;
if (len < 0)
p->skipvsp -= len;
else
while (len--)
term_vspace(p);
roff_term_pre_br(p, n);
}
static void
roff_term_pre_ti(ROFF_TERM_ARGS)
{
struct roffsu su;
const char *cp;
int len, sign;
roff_term_pre_br(p, n);
if (n->child == NULL)
return;
cp = n->child->string;
if (*cp == '+') {
sign = 1;
cp++;
} else if (*cp == '-') {
sign = -1;
cp++;
} else
sign = 0;
if (a2roffsu(cp, &su, SCALE_EM) == NULL)
return;
len = term_hen(p, &su);
if (sign == 0) {
p->ti = len - p->tcol->offset;
p->tcol->offset = len;
} else if (sign == 1) {
p->ti = len;
p->tcol->offset += len;
} else if ((size_t)len < p->tcol->offset) {
p->ti = -len;
p->tcol->offset -= len;
} else {
p->ti = -p->tcol->offset;
p->tcol->offset = 0;
}
}
static int
pre_HP(DECL_ARGS)
{
struct roffsu su;
const struct roff_node *nn;
int len;
switch (n->type) {
case ROFFT_BLOCK:
print_bvspace(p, n, mt->pardist);
return 1;
case ROFFT_BODY:
break;
default:
return 0;
}
if ( ! (MANT_LITERAL & mt->fl)) {
p->flags |= TERMP_NOBREAK | TERMP_BRIND;
p->trailspace = 2;
}
/* Calculate offset. */
if ((nn = n->parent->head->child) != NULL &&
a2roffsu(nn->string, &su, SCALE_EN)) {
len = term_hspan(p, &su) / 24;
if (len < 0 && (size_t)(-len) > mt->offset)
len = -mt->offset;
else if (len > SHRT_MAX)
len = term_len(p, p->defindent);
mt->lmargin[mt->lmargincur] = len;
} else
len = mt->lmargin[mt->lmargincur];
p->offset = mt->offset;
p->rmargin = mt->offset + len;
return 1;
}
static int
pre_TP(DECL_ARGS)
{
struct roffsu su;
struct roff_node *nn;
int len, savelit;
switch (n->type) {
case ROFFT_HEAD:
p->flags |= TERMP_NOBREAK | TERMP_BRTRSP;
p->trailspace = 1;
break;
case ROFFT_BODY:
p->flags |= TERMP_NOSPACE;
break;
case ROFFT_BLOCK:
print_bvspace(p, n, mt->pardist);
/* FALLTHROUGH */
default:
return 1;
}
/* Calculate offset. */
if ((nn = n->parent->head->child) != NULL &&
nn->string != NULL && ! (MAN_LINE & nn->flags) &&
a2roffsu(nn->string, &su, SCALE_EN)) {
len = term_hspan(p, &su) / 24;
if (len < 0 && (size_t)(-len) > mt->offset)
len = -mt->offset;
else if (len > SHRT_MAX)
len = term_len(p, p->defindent);
mt->lmargin[mt->lmargincur] = len;
} else
len = mt->lmargin[mt->lmargincur];
switch (n->type) {
case ROFFT_HEAD:
p->offset = mt->offset;
p->rmargin = mt->offset + len;
savelit = MANT_LITERAL & mt->fl;
mt->fl &= ~MANT_LITERAL;
/* Don't print same-line elements. */
nn = n->child;
while (NULL != nn && 0 == (MAN_LINE & nn->flags))
nn = nn->next;
while (NULL != nn) {
print_man_node(p, mt, nn, meta);
nn = nn->next;
}
if (savelit)
mt->fl |= MANT_LITERAL;
return 0;
case ROFFT_BODY:
p->offset = mt->offset + len;
p->rmargin = p->maxrmargin;
p->trailspace = 0;
p->flags &= ~(TERMP_NOBREAK | TERMP_BRTRSP);
break;
default:
break;
}
return 1;
}