-/* $Id: term.c,v 1.38 2009/03/03 22:28:21 kristaps Exp $ */
+/* $Id: term.c,v 1.39 2009/03/04 13:57:35 kristaps Exp $ */
/*
* Copyright (c) 2009 Kristaps Dzonsons <kristaps@kth.se>
*
const struct mdoc_arg *);
static size_t arg_offset(const struct mdoc_arg *);
static size_t arg_width(const struct mdoc_arg *);
+static int arg_listtype(const struct mdoc_node *);
/*
* What follows describes prefix and postfix operations for the abstract
}
+static int
+arg_listtype(const struct mdoc_node *n)
+{
+ const struct mdoc_block *bl;
+ int i, len;
+
+ bl = &n->data.block;
+ len = (int)bl->argc;
+
+ for (i = 0; i < len; i++)
+ switch (bl->argv[i].arg) {
+ case (MDOC_Bullet):
+ /* FALLTHROUGH */
+ case (MDOC_Dash):
+ /* FALLTHROUGH */
+ case (MDOC_Enum):
+ /* FALLTHROUGH */
+ case (MDOC_Hyphen):
+ /* FALLTHROUGH */
+ case (MDOC_Tag):
+ /* FALLTHROUGH */
+ case (MDOC_Inset):
+ /* FALLTHROUGH */
+ case (MDOC_Diag):
+ /* FALLTHROUGH */
+ case (MDOC_Item):
+ /* FALLTHROUGH */
+ case (MDOC_Ohang):
+ return(bl->argv[i].arg);
+ default:
+ break;
+ }
+
+ errx(1, "list type not supported");
+ /* NOTREACHED */
+}
+
+
static size_t
arg_offset(const struct mdoc_arg *arg)
{
/* ARGSUSED */
static int
-termp_it_pre(DECL_ARGS)
+termp_it_pre_block(DECL_ARGS)
{
- const struct mdoc_node *n, *it;
+ const struct mdoc_node *n;
const struct mdoc_block *bl;
- char buf[7], *tp;
- int i, type;
- size_t width, offset;
- switch (node->type) {
- case (MDOC_BODY):
- /* FALLTHROUGH */
- case (MDOC_HEAD):
- it = node->parent;
- break;
- case (MDOC_BLOCK):
- it = node;
- break;
- default:
- return(1);
- }
-
- n = it->parent->parent;
+ n = node->parent->parent;
bl = &n->data.block;
- if (MDOC_BLOCK == node->type) {
- newln(p);
- if ( ! arg_hasattr(MDOC_Compact, bl->argc, bl->argv))
- if (node->prev || n->prev)
- vspace(p);
- return(1);
- }
+ newln(p);
+ if ( ! arg_hasattr(MDOC_Compact, bl->argc, bl->argv))
+ if (node->prev || n->prev)
+ vspace(p);
- /* Get our list type. */
+ return(1);
+}
- for (type = -1, i = 0; i < (int)bl->argc; i++)
- switch (bl->argv[i].arg) {
- case (MDOC_Bullet):
- /* FALLTHROUGH */
- case (MDOC_Dash):
- /* FALLTHROUGH */
- case (MDOC_Enum):
- /* FALLTHROUGH */
- case (MDOC_Hyphen):
- /* FALLTHROUGH */
- case (MDOC_Tag):
- /* FALLTHROUGH */
- case (MDOC_Inset):
- /* FALLTHROUGH */
- case (MDOC_Diag):
- /* FALLTHROUGH */
- case (MDOC_Ohang):
- type = bl->argv[i].arg;
- i = (int)bl->argc;
- break;
- default:
- errx(1, "list type not supported");
- /* NOTREACHED */
- }
- assert(-1 != type);
+/* ARGSUSED */
+static int
+termp_it_pre(DECL_ARGS)
+{
+ const struct mdoc_block *bl;
+ char buf[7];
+ int i, type;
+ size_t width, offset;
- /* Save our existing (inherited) margin and offset. */
+ if (MDOC_BLOCK == node->type)
+ return(termp_it_pre_block(p, pair, meta, node));
+
+ /* Get ptr to list block, type, etc. */
+
+ bl = &node->parent->parent->parent->data.block;
+ type = arg_listtype(node->parent->parent->parent);
+
+ /* Save parent attributes. */
pair->offset = p->offset;
pair->rmargin = p->rmargin;
+ pair->flag = p->flags;
/* Get list width and offset. */
i = arg_getattr(MDOC_Offset, bl->argc, bl->argv);
offset = i >= 0 ? arg_offset(&bl->argv[i]) : 0;
- /* Override the width. */
+ /*
+ * List-type can override the width in the case of fixed-head
+ * values (bullet, dash/hyphen, enum). Tags need a non-zero
+ * offset.
+ */
switch (type) {
case (MDOC_Bullet):
width = width > 4 ? width : 4;
break;
case (MDOC_Tag):
- if (0 == width)
- errx(1, "need non-zero -width");
- break;
+ if (width)
+ break;
+ errx(1, "need non-zero %s for list type",
+ mdoc_argnames[MDOC_Width]);
default:
break;
}
- /* Word-wrap control. */
+ /*
+ * Whitespace control. Inset bodies need an initial space.
+ */
switch (type) {
case (MDOC_Diag):
- /* XXX - ignore child macros!? */
- if (MDOC_HEAD == node->type)
- TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_DIAG]);
/* FALLTHROUGH */
case (MDOC_Inset):
- if (MDOC_HEAD == node->type)
+ if (MDOC_BODY == node->type)
+ p->flags &= ~TERMP_NOSPACE;
+ else
p->flags |= TERMP_NOSPACE;
break;
+ default:
+ p->flags |= TERMP_NOSPACE;
+ break;
+ }
+
+ /*
+ * Style flags. Diagnostic heads need TTYPE_DIAG.
+ */
+
+ switch (type) {
+ case (MDOC_Diag):
+ if (MDOC_HEAD == node->type)
+ p->flags |= ttypes[TTYPE_DIAG];
+ break;
+ default:
+ break;
+ }
+
+ /*
+ * Pad and break control. This is the tricker part. Lists with
+ * set right-margins for the head get TERMP_NOBREAK because, if
+ * they overrun the margin, they wrap to the new margin.
+ * Correspondingly, the body for these types don't left-pad, as
+ * the head will pad out to to the right.
+ */
+
+ switch (type) {
case (MDOC_Bullet):
/* FALLTHROUGH */
case (MDOC_Dash):
case (MDOC_Hyphen):
/* FALLTHROUGH */
case (MDOC_Tag):
- p->flags |= TERMP_NOSPACE;
if (MDOC_HEAD == node->type)
p->flags |= TERMP_NOBREAK;
- else if (MDOC_BODY == node->type)
+ else
p->flags |= TERMP_NOLPAD;
break;
+ case (MDOC_Diag):
+ if (MDOC_HEAD == node->type)
+ p->flags |= TERMP_NOBREAK;
+ break;
default:
break;
}
/*
- * Get a token to use as the HEAD lead-in. If NULL, we use the
- * HEAD child.
+ * Margin control. Set-head-width lists have their right
+ * margins shortened. The body for these lists has the offset
+ * necessarily lengthened. Everybody gets the offset.
*/
- tp = NULL;
-
- if (MDOC_HEAD == node->type) {
- if (arg_hasattr(MDOC_Bullet, bl->argc, bl->argv))
- tp = "\\[bu]";
- if (arg_hasattr(MDOC_Dash, bl->argc, bl->argv))
- tp = "\\-";
- if (arg_hasattr(MDOC_Enum, bl->argc, bl->argv)) {
- (pair->ppair->ppair->count)++;
- (void)snprintf(buf, sizeof(buf), "%d.",
- pair->ppair->ppair->count);
- tp = buf;
- }
- if (arg_hasattr(MDOC_Hyphen, bl->argc, bl->argv))
- tp = "\\-";
- }
-
- /* Margin control. */
-
p->offset += offset;
switch (type) {
case (MDOC_Tag):
if (MDOC_HEAD == node->type)
p->rmargin = p->offset + width;
- else if (MDOC_BODY == node->type)
+ else
p->offset += width;
- break;
+ /* FALLTHROUGH */
default:
break;
}
- if (NULL == tp)
- return(1);
+ /*
+ * The dash, hyphen, bullet and enum lists all have a special
+ * HEAD character. Print it now.
+ */
- word(p, tp);
- return(0);
+ if (MDOC_HEAD == node->type)
+ switch (type) {
+ case (MDOC_Bullet):
+ word(p, "\\[bu]");
+ break;
+ case (MDOC_Dash):
+ /* FALLTHROUGH */
+ case (MDOC_Hyphen):
+ word(p, "\\-");
+ break;
+ case (MDOC_Enum):
+ /* TODO: have a wordfmt or something. */
+ (pair->ppair->ppair->count)++;
+ (void)snprintf(buf, sizeof(buf), "%d.",
+ pair->ppair->ppair->count);
+ word(p, buf);
+ break;
+ default:
+ break;
+ }
+
+ /*
+ * If we're not going to process our header children, indicate
+ * so here.
+ */
+
+ if (MDOC_HEAD == node->type)
+ switch (type) {
+ case (MDOC_Bullet):
+ /* FALLTHROUGH */
+ case (MDOC_Item):
+ /* FALLTHROUGH */
+ case (MDOC_Dash):
+ /* FALLTHROUGH */
+ case (MDOC_Hyphen):
+ /* FALLTHROUGH */
+ case (MDOC_Enum):
+ return(0);
+ default:
+ break;
+ }
+
+ return(1);
}
static void
termp_it_post(DECL_ARGS)
{
- int type, i;
- struct mdoc_block *bl;
+ int type;
if (MDOC_BODY != node->type && MDOC_HEAD != node->type)
return;
- assert(MDOC_BLOCK == node->parent->parent->parent->type);
- assert(MDOC_Bl == node->parent->parent->parent->tok);
- bl = &node->parent->parent->parent->data.block;
-
- for (type = -1, i = 0; i < (int)bl->argc; i++)
- switch (bl->argv[i].arg) {
- case (MDOC_Bullet):
- /* FALLTHROUGH */
- case (MDOC_Dash):
- /* FALLTHROUGH */
- case (MDOC_Enum):
- /* FALLTHROUGH */
- case (MDOC_Hyphen):
- /* FALLTHROUGH */
- case (MDOC_Tag):
- /* FALLTHROUGH */
- case (MDOC_Diag):
- /* FALLTHROUGH */
- case (MDOC_Inset):
- /* FALLTHROUGH */
- case (MDOC_Ohang):
- type = bl->argv[i].arg;
- i = (int)bl->argc;
- break;
- default:
- errx(1, "list type not supported");
- /* NOTREACHED */
- }
-
+ type = arg_listtype(node->parent->parent->parent);
switch (type) {
case (MDOC_Diag):
/* FALLTHROUGH */
+ case (MDOC_Item):
+ /* FALLTHROUGH */
case (MDOC_Inset):
+ if (MDOC_BODY != node->type)
+ break;
+ flushln(p);
break;
default:
flushln(p);
p->offset = pair->offset;
p->rmargin = pair->rmargin;
-
- switch (type) {
- case (MDOC_Inset):
- break;
- default:
- if (MDOC_HEAD == node->type)
- p->flags &= ~TERMP_NOBREAK;
- else if (MDOC_BODY == node->type)
- p->flags &= ~TERMP_NOLPAD;
- break;
- }
+ p->flags = pair->flag;
}
git.ckatri.com / mandoc.git / commitdiff