/* ARGSUSED */
static int
termp_an_pre(DECL_ARGS)
{
if (NULL == n->child)
return(1);
/*
* If not in the AUTHORS section, `An -split' will cause
* newlines to occur before the author name. If in the AUTHORS
* section, by default, the first `An' invocation is nosplit,
* then all subsequent ones, regardless of whether interspersed
* with other macros/text, are split. -split, in this case,
* will override the condition of the implied first -nosplit.
*/
if (n->sec == SEC_AUTHORS) {
if ( ! (TERMP_ANPREC & p->flags)) {
if (TERMP_SPLIT & p->flags)
term_newln(p);
return(1);
}
if (TERMP_NOSPLIT & p->flags)
return(1);
term_newln(p);
return(1);
}
if (TERMP_SPLIT & p->flags)
term_newln(p);
return(1);
}
/*
* This decides how to assert whitespace before any of the SYNOPSIS set
* of macros (which, as in the case of Ft/Fo and Ft/Fn, may contain
* macro combos).
*/
static void
synopsis_pre(struct termp *p, const struct mdoc_node *n)
{
/*
* Obviously, if we're not in a SYNOPSIS or no prior macros
* exist, do nothing.
*/
if (NULL == n->prev || ! (MDOC_SYNPRETTY & n->flags))
return;
/*
* If we're the second in a pair of like elements, emit our
* newline and return. UNLESS we're `Fo', `Fn', `Fn', in which
* case we soldier on.
*/
if (n->prev->tok == n->tok &&
MDOC_Ft != n->tok &&
MDOC_Fo != n->tok &&
MDOC_Fn != n->tok) {
term_newln(p);
return;
}
/*
* If we're one of the SYNOPSIS set and non-like pair-wise after
* another (or Fn/Fo, which we've let slip through) then assert
* vertical space, else only newline and move on.
*/
switch (n->prev->tok) {
case (MDOC_Fd):
/* FALLTHROUGH */
case (MDOC_Fn):
/* FALLTHROUGH */
case (MDOC_Fo):
/* FALLTHROUGH */
case (MDOC_In):
/* FALLTHROUGH */
case (MDOC_Vt):
term_vspace(p);
break;
case (MDOC_Ft):
if (MDOC_Fn != n->tok && MDOC_Fo != n->tok) {
term_vspace(p);
break;
}
/* FALLTHROUGH */
default:
term_newln(p);
break;
}
}
static void
post_SH(DECL_ARGS)
{
switch (n->type) {
case ROFFT_HEAD:
term_newln(p);
break;
case ROFFT_BODY:
term_newln(p);
break;
default:
break;
}
}
/* ARGSUSED */
static void
post_SH(DECL_ARGS)
{
switch (n->type) {
case (MAN_HEAD):
term_newln(p);
break;
case (MAN_BODY):
term_newln(p);
break;
default:
break;
}
}
/* ARGSUSED */
static void
termp_bl_post(DECL_ARGS)
{
if (MDOC_BLOCK == n->type)
term_newln(p);
}
static void
post_HP(DECL_ARGS)
{
switch (n->type) {
case ROFFT_BODY:
term_newln(p);
/*
* Compatibility with a groff bug.
* The .HP macro uses the undocumented .tag request
* which causes a line break and cancels no-space
* mode even if there isn't any output.
*/
if (n->child == NULL)
term_vspace(p);
p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
p->trailspace = 0;
p->offset = mt->offset;
p->rmargin = p->maxrmargin;
break;
default:
break;
}
}
static int
termp_an_pre(DECL_ARGS)
{
if (n->norm->An.auth == AUTH_split) {
p->flags &= ~TERMP_NOSPLIT;
p->flags |= TERMP_SPLIT;
return(0);
}
if (n->norm->An.auth == AUTH_nosplit) {
p->flags &= ~TERMP_SPLIT;
p->flags |= TERMP_NOSPLIT;
return(0);
}
if (n->child == NULL)
return(0);
if (p->flags & TERMP_SPLIT)
term_newln(p);
if (n->sec == SEC_AUTHORS && ! (p->flags & TERMP_NOSPLIT))
p->flags |= TERMP_SPLIT;
return(1);
}
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);
}
/* ARGSUSED */
static void
termp_ss_post(DECL_ARGS)
{
if (MDOC_HEAD == n->type)
term_newln(p);
}
static void
termp_sh_post(DECL_ARGS)
{
switch (n->type) {
case ROFFT_HEAD:
term_newln(p);
break;
case ROFFT_BODY:
term_newln(p);
p->offset = 0;
break;
default:
break;
}
}
static int
termp_ex_pre(DECL_ARGS)
{
int nchild;
term_newln(p);
term_word(p, "The");
nchild = n->nchild;
for (n = n->child; n; n = n->next) {
term_fontpush(p, TERMFONT_BOLD);
term_word(p, n->string);
term_fontpop(p);
if (nchild > 2 && n->next) {
p->flags |= TERMP_NOSPACE;
term_word(p, ",");
}
if (n->next && NULL == n->next->next)
term_word(p, "and");
}
if (nchild > 1)
term_word(p, "utilities exit\\~0");
else
term_word(p, "utility exits\\~0");
term_word(p, "on success, and\\~>0 if an error occurs.");
p->flags |= TERMP_SENTENCE;
return 0;
}
static int
termp_ex_pre(DECL_ARGS)
{
struct roff_node *nch;
term_newln(p);
term_word(p, "The");
for (nch = n->child; nch != NULL; nch = nch->next) {
term_fontpush(p, TERMFONT_BOLD);
term_word(p, nch->string);
term_fontpop(p);
if (nch->next == NULL)
continue;
if (nch->prev != NULL || nch->next->next != NULL) {
p->flags |= TERMP_NOSPACE;
term_word(p, ",");
}
if (nch->next->next == NULL)
term_word(p, "and");
}
if (n->child != NULL && n->child->next != NULL)
term_word(p, "utilities exit\\~0");
else
term_word(p, "utility exits\\~0");
term_word(p, "on success, and\\~>0 if an error occurs.");
p->flags |= TERMP_SENTENCE;
return 0;
}
static void
termp_bl_post(DECL_ARGS)
{
if (n->type == ROFFT_BLOCK)
term_newln(p);
}
/* ARGSUSED */
static int
pre_RS(DECL_ARGS)
{
int ival;
size_t sz;
switch (n->type) {
case (MAN_BLOCK):
term_newln(p);
return(1);
case (MAN_HEAD):
return(0);
default:
break;
}
sz = term_len(p, p->defindent);
if (NULL != (n = n->parent->head->child))
if ((ival = a2width(p, n->string)) >= 0)
sz = (size_t)ival;
mt->offset += sz;
p->rmargin = p->maxrmargin;
p->offset = mt->offset < p->rmargin ? mt->offset : p->rmargin;
if (++mt->lmarginsz < MAXMARGINS)
mt->lmargincur = mt->lmarginsz;
mt->lmargin[mt->lmargincur] = mt->lmargin[mt->lmargincur - 1];
return(1);
}
/* ARGSUSED */
static void
post_RS(DECL_ARGS)
{
int ival;
size_t sz;
switch (n->type) {
case (MAN_BLOCK):
return;
case (MAN_HEAD):
return;
default:
term_newln(p);
break;
}
sz = term_len(p, p->defindent);
if (NULL != (n = n->parent->head->child))
if ((ival = a2width(p, n->string)) >= 0)
sz = (size_t)ival;
mt->offset = mt->offset < sz ? 0 : mt->offset - sz;
p->offset = mt->offset;
if (--mt->lmarginsz < MAXMARGINS)
mt->lmargincur = mt->lmarginsz;
}
/* ARGSUSED */
static int
pre_sp(DECL_ARGS)
{
size_t i, len;
if ((NULL == n->prev && n->parent)) {
if (MAN_SS == n->parent->tok)
return(0);
if (MAN_SH == n->parent->tok)
return(0);
}
switch (n->tok) {
case (MAN_br):
len = 0;
break;
default:
len = n->child ? a2height(p, n->child->string) : 1;
break;
}
if (0 == len)
term_newln(p);
for (i = 0; i < len; i++)
term_vspace(p);
return(0);
}
/* ARGSUSED */
static int
pre_RS(DECL_ARGS)
{
const struct man_node *nn;
int ival;
switch (n->type) {
case (MAN_BLOCK):
term_newln(p);
return(1);
case (MAN_HEAD):
return(0);
default:
break;
}
if (NULL == (nn = n->parent->head->child)) {
mt->offset = mt->lmargin + term_len(p, INDENT);
p->offset = mt->offset;
return(1);
}
if ((ival = a2width(p, nn->string)) < 0)
return(1);
mt->offset = term_len(p, INDENT) + (size_t)ival;
p->offset = mt->offset;
return(1);
}
/* ARGSUSED */
static int
pre_literal(DECL_ARGS)
{
term_newln(p);
if (MAN_nf == n->tok)
mt->fl |= MANT_LITERAL;
else
mt->fl &= ~MANT_LITERAL;
/*
* Unlike .IP and .TP, .HP does not have a HEAD.
* So in case a second call to term_flushln() is needed,
* indentation has to be set up explicitly.
*/
if (MAN_HP == n->parent->tok && p->rmargin < p->maxrmargin) {
p->offset = p->rmargin;
p->rmargin = p->maxrmargin;
p->flags &= ~(TERMP_NOBREAK | TERMP_TWOSPACE);
p->flags |= TERMP_NOSPACE;
}
return(0);
}
static void
termp_ss_post(DECL_ARGS)
{
if (n->type == ROFFT_HEAD || n->type == ROFFT_BODY)
term_newln(p);
}
static void
termp_lb_post(DECL_ARGS)
{
if (SEC_LIBRARY == n->sec && MDOC_LINE & n->flags)
term_newln(p);
}
/* ARGSUSED */
static void
termp_d1_post(DECL_ARGS)
{
if (MDOC_BLOCK != n->type)
return;
term_newln(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.
* 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);
}
static int
termp_d1_pre(DECL_ARGS)
{
if (n->type != ROFFT_BLOCK)
return 1;
term_newln(p);
p->offset += term_len(p, p->defindent + 1);
return 1;
}
/* ARGSUSED */
static int
termp_d1_pre(DECL_ARGS)
{
if (MDOC_BLOCK != n->type)
return(1);
term_newln(p);
p->offset += term_len(p, p->defindent + 1);
return(1);
}
/*
* 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;
if (0 < p->skipvsp)
p->skipvsp--;
else
(*p->endline)(p);
}
static int
pre_sp(DECL_ARGS)
{
char *s;
size_t i, len;
int neg;
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;
}
}
neg = 0;
switch (n->tok) {
case MAN_br:
len = 0;
break;
default:
if (NULL == n->child) {
len = 1;
break;
}
s = n->child->string;
if ('-' == *s) {
neg = 1;
s++;
}
len = a2height(p, s);
break;
}
if (0 == len)
term_newln(p);
else if (neg)
p->skipvsp += len;
else
for (i = 0; i < len; i++)
term_vspace(p);
return(0);
}
static void
roff_term_pre_br(ROFF_TERM_ARGS)
{
term_newln(p);
if (p->flags & TERMP_BRIND) {
p->tcol->offset = p->tcol->rmargin;
p->tcol->rmargin = p->maxrmargin;
p->trailspace = 0;
p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
p->flags |= TERMP_NOSPACE;
}
}
/* ARGSUSED */
static void
termp_it_post(DECL_ARGS)
{
enum mdoc_list type;
if (MDOC_BLOCK == n->type)
return;
type = n->parent->parent->parent->norm->Bl.type;
switch (type) {
case (LIST_item):
/* FALLTHROUGH */
case (LIST_diag):
/* FALLTHROUGH */
case (LIST_inset):
if (MDOC_BODY == n->type)
term_newln(p);
break;
case (LIST_column):
if (MDOC_BODY == n->type)
term_flushln(p);
break;
default:
term_newln(p);
break;
}
/*
* Now that our output is flushed, we can reset our tags. Since
* only `It' sets these flags, we're free to assume that nobody
* has munged them in the meanwhile.
*/
p->flags &= ~TERMP_DANGLE;
p->flags &= ~TERMP_NOBREAK;
p->flags &= ~TERMP_TWOSPACE;
p->flags &= ~TERMP_NOLPAD;
p->flags &= ~TERMP_HANG;
}
static int
termp_rv_pre(DECL_ARGS)
{
int nchild;
term_newln(p);
nchild = n->nchild;
if (nchild > 0) {
term_word(p, "The");
for (n = n->child; n; n = n->next) {
term_fontpush(p, TERMFONT_BOLD);
term_word(p, n->string);
term_fontpop(p);
p->flags |= TERMP_NOSPACE;
term_word(p, "()");
if (n->next == NULL)
continue;
if (nchild > 2) {
p->flags |= TERMP_NOSPACE;
term_word(p, ",");
}
if (n->next->next == NULL)
term_word(p, "and");
}
if (nchild > 1)
term_word(p, "functions return");
else
term_word(p, "function returns");
term_word(p, "the value\\~0 if successful;");
} else
term_word(p, "Upon successful completion,"
" the value\\~0 is returned;");
term_word(p, "otherwise the value\\~\\-1 is returned"
" and the global variable");
term_fontpush(p, TERMFONT_UNDER);
term_word(p, "errno");
term_fontpop(p);
term_word(p, "is set to indicate the error.");
p->flags |= TERMP_SENTENCE;
return 0;
}