-/* $Id: mdoc_man.c,v 1.107 2017/04/17 12:53:29 schwarze Exp $ */
+/* $Id: mdoc_man.c,v 1.118 2017/06/06 15:01:04 schwarze Exp $ */
/*
* Copyright (c) 2011-2017 Ingo Schwarze <schwarze@openbsd.org>
*
#include <assert.h>
#include <stdio.h>
+#include <stdlib.h>
#include <string.h>
#include "mandoc_aux.h"
#define DECL_ARGS const struct roff_meta *meta, struct roff_node *n
+typedef int (*int_fp)(DECL_ARGS);
+typedef void (*void_fp)(DECL_ARGS);
+
struct manact {
- int (*cond)(DECL_ARGS); /* DON'T run actions */
- int (*pre)(DECL_ARGS); /* pre-node action */
- void (*post)(DECL_ARGS); /* post-node action */
+ int_fp cond; /* DON'T run actions */
+ int_fp pre; /* pre-node action */
+ void_fp post; /* post-node action */
const char *prefix; /* pre-node string constant */
const char *suffix; /* post-node string constant */
};
static int cond_head(DECL_ARGS);
static void font_push(char);
static void font_pop(void);
+static int man_strlen(const char *);
static void mid_it(void);
static void post__t(DECL_ARGS);
static void post_aq(DECL_ARGS);
static void post_percent(DECL_ARGS);
static void post_pf(DECL_ARGS);
static void post_sect(DECL_ARGS);
-static void post_sp(DECL_ARGS);
static void post_vt(DECL_ARGS);
static int pre__t(DECL_ARGS);
static int pre_an(DECL_ARGS);
static int pre_bf(DECL_ARGS);
static int pre_bk(DECL_ARGS);
static int pre_bl(DECL_ARGS);
-static int pre_br(DECL_ARGS);
+static void pre_br(DECL_ARGS);
static int pre_dl(DECL_ARGS);
static int pre_en(DECL_ARGS);
static int pre_enc(DECL_ARGS);
static int pre_fl(DECL_ARGS);
static int pre_fn(DECL_ARGS);
static int pre_fo(DECL_ARGS);
-static int pre_ft(DECL_ARGS);
+static void pre_ft(DECL_ARGS);
+static int pre_Ft(DECL_ARGS);
static int pre_in(DECL_ARGS);
static int pre_it(DECL_ARGS);
static int pre_lk(DECL_ARGS);
static int pre_li(DECL_ARGS);
-static int pre_ll(DECL_ARGS);
static int pre_nm(DECL_ARGS);
static int pre_no(DECL_ARGS);
static int pre_ns(DECL_ARGS);
+static void pre_onearg(DECL_ARGS);
static int pre_pp(DECL_ARGS);
static int pre_rs(DECL_ARGS);
static int pre_sm(DECL_ARGS);
-static int pre_sp(DECL_ARGS);
+static void pre_sp(DECL_ARGS);
static int pre_sect(DECL_ARGS);
static int pre_sy(DECL_ARGS);
static void pre_syn(const struct roff_node *);
+static void pre_ta(DECL_ARGS);
static int pre_vt(DECL_ARGS);
static int pre_xr(DECL_ARGS);
static void print_word(const char *);
static void print_count(int *);
static void print_node(DECL_ARGS);
-static const struct manact manacts[MDOC_MAX + 1] = {
- { NULL, pre_ap, NULL, NULL, NULL }, /* Ap */
+static const void_fp roff_manacts[ROFF_MAX] = {
+ pre_br,
+ pre_onearg,
+ pre_ft,
+ pre_onearg,
+ pre_onearg,
+ pre_sp,
+ pre_ta,
+ pre_onearg,
+};
+
+static const struct manact __manacts[MDOC_MAX - MDOC_Dd] = {
{ NULL, NULL, NULL, NULL, NULL }, /* Dd */
{ NULL, NULL, NULL, NULL, NULL }, /* Dt */
{ NULL, NULL, NULL, NULL, NULL }, /* Os */
{ NULL, pre_it, post_it, NULL, NULL }, /* It */
{ NULL, pre_em, post_font, NULL, NULL }, /* Ad */
{ NULL, pre_an, NULL, NULL, NULL }, /* An */
+ { NULL, pre_ap, NULL, NULL, NULL }, /* Ap */
{ NULL, pre_em, post_font, NULL, NULL }, /* Ar */
{ NULL, pre_sy, post_font, NULL, NULL }, /* Cd */
{ NULL, pre_sy, post_font, NULL, NULL }, /* Cm */
{ NULL, pre_fd, post_fd, NULL, NULL }, /* Fd */
{ NULL, pre_fl, post_fl, NULL, NULL }, /* Fl */
{ NULL, pre_fn, post_fn, NULL, NULL }, /* Fn */
- { NULL, pre_ft, post_font, NULL, NULL }, /* Ft */
+ { NULL, pre_Ft, post_font, NULL, NULL }, /* Ft */
{ NULL, pre_sy, post_font, NULL, NULL }, /* Ic */
{ NULL, pre_in, post_in, NULL, NULL }, /* In */
{ NULL, pre_li, post_font, NULL, NULL }, /* Li */
{ cond_head, pre_enc, NULL, "\\- ", NULL }, /* Nd */
{ NULL, pre_nm, post_nm, NULL, NULL }, /* Nm */
{ cond_body, pre_enc, post_enc, "[", "]" }, /* Op */
- { NULL, pre_ft, post_font, NULL, NULL }, /* Ot */
+ { NULL, pre_Ft, post_font, NULL, NULL }, /* Ot */
{ NULL, pre_em, post_font, NULL, NULL }, /* Pa */
{ NULL, pre_ex, NULL, NULL, NULL }, /* Rv */
{ NULL, NULL, NULL, NULL, NULL }, /* St */
{ cond_body, pre_en, post_en, NULL, NULL }, /* En */
{ NULL, NULL, NULL, NULL, NULL }, /* Dx */
{ NULL, NULL, post_percent, NULL, NULL }, /* %Q */
- { NULL, pre_br, NULL, NULL, NULL }, /* br */
- { NULL, pre_sp, post_sp, NULL, NULL }, /* sp */
{ NULL, NULL, post_percent, NULL, NULL }, /* %U */
{ NULL, NULL, NULL, NULL, NULL }, /* Ta */
- { NULL, pre_ll, post_sp, NULL, NULL }, /* ll */
- { NULL, NULL, NULL, NULL, NULL }, /* ROOT */
};
+static const struct manact *const manacts = __manacts - MDOC_Dd;
static int outflags;
#define MMAN_spc (1 << 0) /* blank character before next word */
} fontqueue;
+static int
+man_strlen(const char *cp)
+{
+ size_t rsz;
+ int skip, sz;
+
+ sz = 0;
+ skip = 0;
+ for (;;) {
+ rsz = strcspn(cp, "\\");
+ if (rsz) {
+ cp += rsz;
+ if (skip) {
+ skip = 0;
+ rsz--;
+ }
+ sz += rsz;
+ }
+ if ('\0' == *cp)
+ break;
+ cp++;
+ switch (mandoc_escape(&cp, NULL, NULL)) {
+ case ESCAPE_ERROR:
+ return sz;
+ case ESCAPE_UNICODE:
+ case ESCAPE_NUMBERED:
+ case ESCAPE_SPECIAL:
+ case ESCAPE_OVERSTRIKE:
+ if (skip)
+ skip = 0;
+ else
+ sz++;
+ break;
+ case ESCAPE_SKIPCHAR:
+ skip = 1;
+ break;
+ default:
+ break;
+ }
+ }
+ return sz;
+}
+
static void
font_push(char newfont)
{
print_line(const char *s, int newflags)
{
- outflags &= ~MMAN_br;
outflags |= MMAN_nl;
print_word(s);
outflags |= newflags;
return;
}
} else
- sz = strlen(v);
+ sz = man_strlen(v);
/*
* We are inside an enclosing list.
numeric = 0;
}
} else
- sz = strlen(bl->width);
+ sz = man_strlen(bl->width);
/* 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 = strlen(child->string);
+ chsz = man_strlen(child->string);
else
chsz = 0;
outflags &= ~(MMAN_spc | MMAN_spc_force);
else if (outflags & MMAN_Sm)
outflags |= MMAN_spc;
+ } else if (n->tok < ROFF_MAX) {
+ (*roff_manacts[n->tok])(meta, n);
+ return;
} else {
+ assert(n->tok >= MDOC_Dd && n->tok < MDOC_MAX);
/*
* Conditionally run the pre-node action handler for a
* node.
}
-static int
+static void
pre_br(DECL_ARGS)
{
-
outflags |= MMAN_br;
- return 0;
}
static int
}
static int
-pre_ft(DECL_ARGS)
+pre_Ft(DECL_ARGS)
{
pre_syn(n);
return 1;
}
+static void
+pre_ft(DECL_ARGS)
+{
+ print_line(".ft", 0);
+ print_word(n->child->string);
+ outflags |= MMAN_nl;
+}
+
static int
pre_in(DECL_ARGS)
{
static int
pre_lk(DECL_ARGS)
{
- const struct roff_node *link, *descr;
+ const struct roff_node *link, *descr, *punct;
+ int display;
if ((link = n->child) == NULL)
return 0;
+ /* Find beginning of trailing punctuation. */
+ punct = n->last;
+ while (punct != link && punct->flags & NODE_DELIMC)
+ punct = punct->prev;
+ punct = punct->next;
+
/* Link text. */
- if ((descr = link->next) != NULL && !(descr->flags & NODE_DELIMC)) {
+ if ((descr = link->next) != NULL && descr != punct) {
font_push('I');
- while (descr != NULL && !(descr->flags & NODE_DELIMC)) {
+ while (descr != punct) {
print_word(descr->string);
descr = descr->next;
}
}
/* Link target. */
+ display = man_strlen(link->string) >= 26;
+ if (display) {
+ print_line(".RS", MMAN_Bk_susp);
+ print_word("6n");
+ outflags |= MMAN_nl;
+ }
font_push('B');
print_word(link->string);
font_pop();
/* Trailing punctuation. */
- while (descr != NULL) {
- print_word(descr->string);
- descr = descr->next;
+ while (punct != NULL) {
+ print_word(punct->string);
+ punct = punct->next;
}
+ if (display)
+ print_line(".RE", MMAN_nl);
return 0;
}
-static int
-pre_ll(DECL_ARGS)
+static void
+pre_onearg(DECL_ARGS)
{
-
- print_line(".ll", 0);
- return 1;
+ outflags |= MMAN_nl;
+ print_word(".");
+ outflags &= ~MMAN_spc;
+ print_word(roff_name[n->tok]);
+ if (n->child != NULL)
+ print_word(n->child->string);
+ outflags |= MMAN_nl;
+ if (n->tok == ROFF_ce)
+ for (n = n->child->next; n != NULL; n = n->next)
+ print_node(meta, n);
}
static int
if (NULL == n->parent->prev)
outflags |= MMAN_sp;
print_block(".HP", 0);
- printf(" %zun", strlen(name) + 1);
+ printf(" %dn", man_strlen(name) + 1);
outflags |= MMAN_nl;
}
font_push('B');
return 0;
}
-static int
+static void
pre_sp(DECL_ARGS)
{
-
- if (MMAN_PP & outflags) {
+ if (outflags & MMAN_PP) {
outflags &= ~MMAN_PP;
print_line(".PP", 0);
- } else
+ } else {
print_line(".sp", 0);
- return 1;
-}
-
-static void
-post_sp(DECL_ARGS)
-{
-
+ if (n->child != NULL)
+ print_word(n->child->string);
+ }
outflags |= MMAN_nl;
}
return 1;
}
+static void
+pre_ta(DECL_ARGS)
+{
+ print_line(".ta", 0);
+ for (n = n->child; n != NULL; n = n->next)
+ print_word(n->string);
+ outflags |= MMAN_nl;
+}
+
static int
pre_vt(DECL_ARGS)
{
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