1611 lines
34 KiB
C
1611 lines
34 KiB
C
/* $Id: mdoc_markdown.c,v 1.37 2021/08/10 12:55:03 schwarze Exp $ */
|
|
/*
|
|
* Copyright (c) 2017, 2018, 2020 Ingo Schwarze <schwarze@openbsd.org>
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*
|
|
* Markdown formatter for mdoc(7) used by mandoc(1).
|
|
*/
|
|
#include "config.h"
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <assert.h>
|
|
#include <ctype.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "mandoc_aux.h"
|
|
#include "mandoc.h"
|
|
#include "roff.h"
|
|
#include "mdoc.h"
|
|
#include "main.h"
|
|
|
|
struct md_act {
|
|
int (*cond)(struct roff_node *);
|
|
int (*pre)(struct roff_node *);
|
|
void (*post)(struct roff_node *);
|
|
const char *prefix; /* pre-node string constant */
|
|
const char *suffix; /* post-node string constant */
|
|
};
|
|
|
|
static void md_nodelist(struct roff_node *);
|
|
static void md_node(struct roff_node *);
|
|
static const char *md_stack(char);
|
|
static void md_preword(void);
|
|
static void md_rawword(const char *);
|
|
static void md_word(const char *);
|
|
static void md_named(const char *);
|
|
static void md_char(unsigned char);
|
|
static void md_uri(const char *);
|
|
|
|
static int md_cond_head(struct roff_node *);
|
|
static int md_cond_body(struct roff_node *);
|
|
|
|
static int md_pre_abort(struct roff_node *);
|
|
static int md_pre_raw(struct roff_node *);
|
|
static int md_pre_word(struct roff_node *);
|
|
static int md_pre_skip(struct roff_node *);
|
|
static void md_pre_syn(struct roff_node *);
|
|
static int md_pre_An(struct roff_node *);
|
|
static int md_pre_Ap(struct roff_node *);
|
|
static int md_pre_Bd(struct roff_node *);
|
|
static int md_pre_Bk(struct roff_node *);
|
|
static int md_pre_Bl(struct roff_node *);
|
|
static int md_pre_D1(struct roff_node *);
|
|
static int md_pre_Dl(struct roff_node *);
|
|
static int md_pre_En(struct roff_node *);
|
|
static int md_pre_Eo(struct roff_node *);
|
|
static int md_pre_Fa(struct roff_node *);
|
|
static int md_pre_Fd(struct roff_node *);
|
|
static int md_pre_Fn(struct roff_node *);
|
|
static int md_pre_Fo(struct roff_node *);
|
|
static int md_pre_In(struct roff_node *);
|
|
static int md_pre_It(struct roff_node *);
|
|
static int md_pre_Lk(struct roff_node *);
|
|
static int md_pre_Mt(struct roff_node *);
|
|
static int md_pre_Nd(struct roff_node *);
|
|
static int md_pre_Nm(struct roff_node *);
|
|
static int md_pre_No(struct roff_node *);
|
|
static int md_pre_Ns(struct roff_node *);
|
|
static int md_pre_Pp(struct roff_node *);
|
|
static int md_pre_Rs(struct roff_node *);
|
|
static int md_pre_Sh(struct roff_node *);
|
|
static int md_pre_Sm(struct roff_node *);
|
|
static int md_pre_Vt(struct roff_node *);
|
|
static int md_pre_Xr(struct roff_node *);
|
|
static int md_pre__T(struct roff_node *);
|
|
static int md_pre_br(struct roff_node *);
|
|
|
|
static void md_post_raw(struct roff_node *);
|
|
static void md_post_word(struct roff_node *);
|
|
static void md_post_pc(struct roff_node *);
|
|
static void md_post_Bk(struct roff_node *);
|
|
static void md_post_Bl(struct roff_node *);
|
|
static void md_post_D1(struct roff_node *);
|
|
static void md_post_En(struct roff_node *);
|
|
static void md_post_Eo(struct roff_node *);
|
|
static void md_post_Fa(struct roff_node *);
|
|
static void md_post_Fd(struct roff_node *);
|
|
static void md_post_Fl(struct roff_node *);
|
|
static void md_post_Fn(struct roff_node *);
|
|
static void md_post_Fo(struct roff_node *);
|
|
static void md_post_In(struct roff_node *);
|
|
static void md_post_It(struct roff_node *);
|
|
static void md_post_Lb(struct roff_node *);
|
|
static void md_post_Nm(struct roff_node *);
|
|
static void md_post_Pf(struct roff_node *);
|
|
static void md_post_Vt(struct roff_node *);
|
|
static void md_post__T(struct roff_node *);
|
|
|
|
static const struct md_act md_acts[MDOC_MAX - MDOC_Dd] = {
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Dd */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Dt */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Os */
|
|
{ NULL, md_pre_Sh, NULL, NULL, NULL }, /* Sh */
|
|
{ NULL, md_pre_Sh, NULL, NULL, NULL }, /* Ss */
|
|
{ NULL, md_pre_Pp, NULL, NULL, NULL }, /* Pp */
|
|
{ md_cond_body, md_pre_D1, md_post_D1, NULL, NULL }, /* D1 */
|
|
{ md_cond_body, md_pre_Dl, md_post_D1, NULL, NULL }, /* Dl */
|
|
{ md_cond_body, md_pre_Bd, md_post_D1, NULL, NULL }, /* Bd */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Ed */
|
|
{ md_cond_body, md_pre_Bl, md_post_Bl, NULL, NULL }, /* Bl */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* El */
|
|
{ NULL, md_pre_It, md_post_It, NULL, NULL }, /* It */
|
|
{ NULL, md_pre_raw, md_post_raw, "*", "*" }, /* Ad */
|
|
{ NULL, md_pre_An, NULL, NULL, NULL }, /* An */
|
|
{ NULL, md_pre_Ap, NULL, NULL, NULL }, /* Ap */
|
|
{ NULL, md_pre_raw, md_post_raw, "*", "*" }, /* Ar */
|
|
{ NULL, md_pre_raw, md_post_raw, "**", "**" }, /* Cd */
|
|
{ NULL, md_pre_raw, md_post_raw, "**", "**" }, /* Cm */
|
|
{ NULL, md_pre_raw, md_post_raw, "`", "`" }, /* Dv */
|
|
{ NULL, md_pre_raw, md_post_raw, "`", "`" }, /* Er */
|
|
{ NULL, md_pre_raw, md_post_raw, "`", "`" }, /* Ev */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Ex */
|
|
{ NULL, md_pre_Fa, md_post_Fa, NULL, NULL }, /* Fa */
|
|
{ NULL, md_pre_Fd, md_post_Fd, "**", "**" }, /* Fd */
|
|
{ NULL, md_pre_raw, md_post_Fl, "**-", "**" }, /* Fl */
|
|
{ NULL, md_pre_Fn, md_post_Fn, NULL, NULL }, /* Fn */
|
|
{ NULL, md_pre_Fd, md_post_raw, "*", "*" }, /* Ft */
|
|
{ NULL, md_pre_raw, md_post_raw, "**", "**" }, /* Ic */
|
|
{ NULL, md_pre_In, md_post_In, NULL, NULL }, /* In */
|
|
{ NULL, md_pre_raw, md_post_raw, "`", "`" }, /* Li */
|
|
{ md_cond_head, md_pre_Nd, NULL, NULL, NULL }, /* Nd */
|
|
{ NULL, md_pre_Nm, md_post_Nm, "**", "**" }, /* Nm */
|
|
{ md_cond_body, md_pre_word, md_post_word, "[", "]" }, /* Op */
|
|
{ NULL, md_pre_abort, NULL, NULL, NULL }, /* Ot */
|
|
{ NULL, md_pre_raw, md_post_raw, "*", "*" }, /* Pa */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Rv */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* St */
|
|
{ NULL, md_pre_raw, md_post_raw, "*", "*" }, /* Va */
|
|
{ NULL, md_pre_Vt, md_post_Vt, "*", "*" }, /* Vt */
|
|
{ NULL, md_pre_Xr, NULL, NULL, NULL }, /* Xr */
|
|
{ NULL, NULL, md_post_pc, NULL, NULL }, /* %A */
|
|
{ NULL, md_pre_raw, md_post_pc, "*", "*" }, /* %B */
|
|
{ NULL, NULL, md_post_pc, NULL, NULL }, /* %D */
|
|
{ NULL, md_pre_raw, md_post_pc, "*", "*" }, /* %I */
|
|
{ NULL, md_pre_raw, md_post_pc, "*", "*" }, /* %J */
|
|
{ NULL, NULL, md_post_pc, NULL, NULL }, /* %N */
|
|
{ NULL, NULL, md_post_pc, NULL, NULL }, /* %O */
|
|
{ NULL, NULL, md_post_pc, NULL, NULL }, /* %P */
|
|
{ NULL, NULL, md_post_pc, NULL, NULL }, /* %R */
|
|
{ NULL, md_pre__T, md_post__T, NULL, NULL }, /* %T */
|
|
{ NULL, NULL, md_post_pc, NULL, NULL }, /* %V */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Ac */
|
|
{ md_cond_body, md_pre_word, md_post_word, "<", ">" }, /* Ao */
|
|
{ md_cond_body, md_pre_word, md_post_word, "<", ">" }, /* Aq */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* At */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Bc */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Bf XXX not implemented */
|
|
{ md_cond_body, md_pre_word, md_post_word, "[", "]" }, /* Bo */
|
|
{ md_cond_body, md_pre_word, md_post_word, "[", "]" }, /* Bq */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Bsx */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Bx */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Db */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Dc */
|
|
{ md_cond_body, md_pre_word, md_post_word, "\"", "\"" }, /* Do */
|
|
{ md_cond_body, md_pre_word, md_post_word, "\"", "\"" }, /* Dq */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Ec */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Ef */
|
|
{ NULL, md_pre_raw, md_post_raw, "*", "*" }, /* Em */
|
|
{ md_cond_body, md_pre_Eo, md_post_Eo, NULL, NULL }, /* Eo */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Fx */
|
|
{ NULL, md_pre_raw, md_post_raw, "**", "**" }, /* Ms */
|
|
{ NULL, md_pre_No, NULL, NULL, NULL }, /* No */
|
|
{ NULL, md_pre_Ns, NULL, NULL, NULL }, /* Ns */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Nx */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Ox */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Pc */
|
|
{ NULL, NULL, md_post_Pf, NULL, NULL }, /* Pf */
|
|
{ md_cond_body, md_pre_word, md_post_word, "(", ")" }, /* Po */
|
|
{ md_cond_body, md_pre_word, md_post_word, "(", ")" }, /* Pq */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Qc */
|
|
{ md_cond_body, md_pre_raw, md_post_raw, "'`", "`'" }, /* Ql */
|
|
{ md_cond_body, md_pre_word, md_post_word, "\"", "\"" }, /* Qo */
|
|
{ md_cond_body, md_pre_word, md_post_word, "\"", "\"" }, /* Qq */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Re */
|
|
{ md_cond_body, md_pre_Rs, NULL, NULL, NULL }, /* Rs */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Sc */
|
|
{ md_cond_body, md_pre_word, md_post_word, "'", "'" }, /* So */
|
|
{ md_cond_body, md_pre_word, md_post_word, "'", "'" }, /* Sq */
|
|
{ NULL, md_pre_Sm, NULL, NULL, NULL }, /* Sm */
|
|
{ NULL, md_pre_raw, md_post_raw, "*", "*" }, /* Sx */
|
|
{ NULL, md_pre_raw, md_post_raw, "**", "**" }, /* Sy */
|
|
{ NULL, md_pre_raw, md_post_raw, "`", "`" }, /* Tn */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Ux */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Xc */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Xo */
|
|
{ NULL, md_pre_Fo, md_post_Fo, "**", "**" }, /* Fo */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Fc */
|
|
{ md_cond_body, md_pre_word, md_post_word, "[", "]" }, /* Oo */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Oc */
|
|
{ NULL, md_pre_Bk, md_post_Bk, NULL, NULL }, /* Bk */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Ek */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Bt */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Hf */
|
|
{ NULL, md_pre_raw, md_post_raw, "*", "*" }, /* Fr */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Ud */
|
|
{ NULL, NULL, md_post_Lb, NULL, NULL }, /* Lb */
|
|
{ NULL, md_pre_abort, NULL, NULL, NULL }, /* Lp */
|
|
{ NULL, md_pre_Lk, NULL, NULL, NULL }, /* Lk */
|
|
{ NULL, md_pre_Mt, NULL, NULL, NULL }, /* Mt */
|
|
{ md_cond_body, md_pre_word, md_post_word, "{", "}" }, /* Brq */
|
|
{ md_cond_body, md_pre_word, md_post_word, "{", "}" }, /* Bro */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Brc */
|
|
{ NULL, NULL, md_post_pc, NULL, NULL }, /* %C */
|
|
{ NULL, md_pre_skip, NULL, NULL, NULL }, /* Es */
|
|
{ md_cond_body, md_pre_En, md_post_En, NULL, NULL }, /* En */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Dx */
|
|
{ NULL, NULL, md_post_pc, NULL, NULL }, /* %Q */
|
|
{ NULL, md_pre_Lk, md_post_pc, NULL, NULL }, /* %U */
|
|
{ NULL, NULL, NULL, NULL, NULL }, /* Ta */
|
|
{ NULL, md_pre_skip, NULL, NULL, NULL }, /* Tg */
|
|
};
|
|
static const struct md_act *md_act(enum roff_tok);
|
|
|
|
static int outflags;
|
|
#define MD_spc (1 << 0) /* Blank character before next word. */
|
|
#define MD_spc_force (1 << 1) /* Even before trailing punctuation. */
|
|
#define MD_nonl (1 << 2) /* Prevent linebreak in markdown code. */
|
|
#define MD_nl (1 << 3) /* Break markdown code line. */
|
|
#define MD_br (1 << 4) /* Insert an output line break. */
|
|
#define MD_sp (1 << 5) /* Insert a paragraph break. */
|
|
#define MD_Sm (1 << 6) /* Horizontal spacing mode. */
|
|
#define MD_Bk (1 << 7) /* Word keep mode. */
|
|
#define MD_An_split (1 << 8) /* Author mode is "split". */
|
|
#define MD_An_nosplit (1 << 9) /* Author mode is "nosplit". */
|
|
|
|
static int escflags; /* Escape in generated markdown code: */
|
|
#define ESC_BOL (1 << 0) /* "#*+-" near the beginning of a line. */
|
|
#define ESC_NUM (1 << 1) /* "." after a leading number. */
|
|
#define ESC_HYP (1 << 2) /* "(" immediately after "]". */
|
|
#define ESC_SQU (1 << 4) /* "]" when "[" is open. */
|
|
#define ESC_FON (1 << 5) /* "*" immediately after unrelated "*". */
|
|
#define ESC_EOL (1 << 6) /* " " at the and of a line. */
|
|
|
|
static int code_blocks, quote_blocks, list_blocks;
|
|
static int outcount;
|
|
|
|
|
|
static const struct md_act *
|
|
md_act(enum roff_tok tok)
|
|
{
|
|
assert(tok >= MDOC_Dd && tok <= MDOC_MAX);
|
|
return md_acts + (tok - MDOC_Dd);
|
|
}
|
|
|
|
void
|
|
markdown_mdoc(void *arg, const struct roff_meta *mdoc)
|
|
{
|
|
outflags = MD_Sm;
|
|
md_word(mdoc->title);
|
|
if (mdoc->msec != NULL) {
|
|
outflags &= ~MD_spc;
|
|
md_word("(");
|
|
md_word(mdoc->msec);
|
|
md_word(")");
|
|
}
|
|
md_word("-");
|
|
md_word(mdoc->vol);
|
|
if (mdoc->arch != NULL) {
|
|
md_word("(");
|
|
md_word(mdoc->arch);
|
|
md_word(")");
|
|
}
|
|
outflags |= MD_sp;
|
|
|
|
md_nodelist(mdoc->first->child);
|
|
|
|
outflags |= MD_sp;
|
|
md_word(mdoc->os);
|
|
md_word("-");
|
|
md_word(mdoc->date);
|
|
putchar('\n');
|
|
}
|
|
|
|
static void
|
|
md_nodelist(struct roff_node *n)
|
|
{
|
|
while (n != NULL) {
|
|
md_node(n);
|
|
n = n->next;
|
|
}
|
|
}
|
|
|
|
static void
|
|
md_node(struct roff_node *n)
|
|
{
|
|
const struct md_act *act;
|
|
int cond, process_children;
|
|
|
|
if (n->type == ROFFT_COMMENT || n->flags & NODE_NOPRT)
|
|
return;
|
|
|
|
if (outflags & MD_nonl)
|
|
outflags &= ~(MD_nl | MD_sp);
|
|
else if (outflags & MD_spc &&
|
|
n->flags & NODE_LINE &&
|
|
!roff_node_transparent(n))
|
|
outflags |= MD_nl;
|
|
|
|
act = NULL;
|
|
cond = 0;
|
|
process_children = 1;
|
|
n->flags &= ~NODE_ENDED;
|
|
|
|
if (n->type == ROFFT_TEXT) {
|
|
if (n->flags & NODE_DELIMC)
|
|
outflags &= ~(MD_spc | MD_spc_force);
|
|
else if (outflags & MD_Sm)
|
|
outflags |= MD_spc_force;
|
|
md_word(n->string);
|
|
if (n->flags & NODE_DELIMO)
|
|
outflags &= ~(MD_spc | MD_spc_force);
|
|
else if (outflags & MD_Sm)
|
|
outflags |= MD_spc;
|
|
} else if (n->tok < ROFF_MAX) {
|
|
switch (n->tok) {
|
|
case ROFF_br:
|
|
process_children = md_pre_br(n);
|
|
break;
|
|
case ROFF_sp:
|
|
process_children = md_pre_Pp(n);
|
|
break;
|
|
default:
|
|
process_children = 0;
|
|
break;
|
|
}
|
|
} else {
|
|
act = md_act(n->tok);
|
|
cond = act->cond == NULL || (*act->cond)(n);
|
|
if (cond && act->pre != NULL &&
|
|
(n->end == ENDBODY_NOT || n->child != NULL))
|
|
process_children = (*act->pre)(n);
|
|
}
|
|
|
|
if (process_children && n->child != NULL)
|
|
md_nodelist(n->child);
|
|
|
|
if (n->flags & NODE_ENDED)
|
|
return;
|
|
|
|
if (cond && act->post != NULL)
|
|
(*act->post)(n);
|
|
|
|
if (n->end != ENDBODY_NOT)
|
|
n->body->flags |= NODE_ENDED;
|
|
}
|
|
|
|
static const char *
|
|
md_stack(char c)
|
|
{
|
|
static char *stack;
|
|
static size_t sz;
|
|
static size_t cur;
|
|
|
|
switch (c) {
|
|
case '\0':
|
|
break;
|
|
case (char)-1:
|
|
assert(cur);
|
|
stack[--cur] = '\0';
|
|
break;
|
|
default:
|
|
if (cur + 1 >= sz) {
|
|
sz += 8;
|
|
stack = mandoc_realloc(stack, sz);
|
|
}
|
|
stack[cur] = c;
|
|
stack[++cur] = '\0';
|
|
break;
|
|
}
|
|
return stack == NULL ? "" : stack;
|
|
}
|
|
|
|
/*
|
|
* Handle vertical and horizontal spacing.
|
|
*/
|
|
static void
|
|
md_preword(void)
|
|
{
|
|
const char *cp;
|
|
|
|
/*
|
|
* If a list block is nested inside a code block or a blockquote,
|
|
* blank lines for paragraph breaks no longer work; instead,
|
|
* they terminate the list. Work around this markdown issue
|
|
* by using mere line breaks instead.
|
|
*/
|
|
|
|
if (list_blocks && outflags & MD_sp) {
|
|
outflags &= ~MD_sp;
|
|
outflags |= MD_br;
|
|
}
|
|
|
|
/*
|
|
* End the old line if requested.
|
|
* Escape whitespace at the end of the markdown line
|
|
* such that it won't look like an output line break.
|
|
*/
|
|
|
|
if (outflags & MD_sp)
|
|
putchar('\n');
|
|
else if (outflags & MD_br) {
|
|
putchar(' ');
|
|
putchar(' ');
|
|
} else if (outflags & MD_nl && escflags & ESC_EOL)
|
|
md_named("zwnj");
|
|
|
|
/* Start a new line if necessary. */
|
|
|
|
if (outflags & (MD_nl | MD_br | MD_sp)) {
|
|
putchar('\n');
|
|
for (cp = md_stack('\0'); *cp != '\0'; cp++) {
|
|
putchar(*cp);
|
|
if (*cp == '>')
|
|
putchar(' ');
|
|
}
|
|
outflags &= ~(MD_nl | MD_br | MD_sp);
|
|
escflags = ESC_BOL;
|
|
outcount = 0;
|
|
|
|
/* Handle horizontal spacing. */
|
|
|
|
} else if (outflags & MD_spc) {
|
|
if (outflags & MD_Bk)
|
|
fputs(" ", stdout);
|
|
else
|
|
putchar(' ');
|
|
escflags &= ~ESC_FON;
|
|
outcount++;
|
|
}
|
|
|
|
outflags &= ~(MD_spc_force | MD_nonl);
|
|
if (outflags & MD_Sm)
|
|
outflags |= MD_spc;
|
|
else
|
|
outflags &= ~MD_spc;
|
|
}
|
|
|
|
/*
|
|
* Print markdown syntax elements.
|
|
* Can also be used for constant strings when neither escaping
|
|
* nor delimiter handling is required.
|
|
*/
|
|
static void
|
|
md_rawword(const char *s)
|
|
{
|
|
md_preword();
|
|
|
|
if (*s == '\0')
|
|
return;
|
|
|
|
if (escflags & ESC_FON) {
|
|
escflags &= ~ESC_FON;
|
|
if (*s == '*' && !code_blocks)
|
|
fputs("‌", stdout);
|
|
}
|
|
|
|
while (*s != '\0') {
|
|
switch(*s) {
|
|
case '*':
|
|
if (s[1] == '\0')
|
|
escflags |= ESC_FON;
|
|
break;
|
|
case '[':
|
|
escflags |= ESC_SQU;
|
|
break;
|
|
case ']':
|
|
escflags |= ESC_HYP;
|
|
escflags &= ~ESC_SQU;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
md_char(*s++);
|
|
}
|
|
if (s[-1] == ' ')
|
|
escflags |= ESC_EOL;
|
|
else
|
|
escflags &= ~ESC_EOL;
|
|
}
|
|
|
|
/*
|
|
* Print text and mdoc(7) syntax elements.
|
|
*/
|
|
static void
|
|
md_word(const char *s)
|
|
{
|
|
const char *seq, *prevfont, *currfont, *nextfont;
|
|
char c;
|
|
int bs, sz, uc, breakline;
|
|
|
|
/* No spacing before closing delimiters. */
|
|
if (s[0] != '\0' && s[1] == '\0' &&
|
|
strchr("!),.:;?]", s[0]) != NULL &&
|
|
(outflags & MD_spc_force) == 0)
|
|
outflags &= ~MD_spc;
|
|
|
|
md_preword();
|
|
|
|
if (*s == '\0')
|
|
return;
|
|
|
|
/* No spacing after opening delimiters. */
|
|
if ((s[0] == '(' || s[0] == '[') && s[1] == '\0')
|
|
outflags &= ~MD_spc;
|
|
|
|
breakline = 0;
|
|
prevfont = currfont = "";
|
|
while ((c = *s++) != '\0') {
|
|
bs = 0;
|
|
switch(c) {
|
|
case ASCII_NBRSP:
|
|
if (code_blocks)
|
|
c = ' ';
|
|
else {
|
|
md_named("nbsp");
|
|
c = '\0';
|
|
}
|
|
break;
|
|
case ASCII_HYPH:
|
|
bs = escflags & ESC_BOL && !code_blocks;
|
|
c = '-';
|
|
break;
|
|
case ASCII_BREAK:
|
|
continue;
|
|
case '#':
|
|
case '+':
|
|
case '-':
|
|
bs = escflags & ESC_BOL && !code_blocks;
|
|
break;
|
|
case '(':
|
|
bs = escflags & ESC_HYP && !code_blocks;
|
|
break;
|
|
case ')':
|
|
bs = escflags & ESC_NUM && !code_blocks;
|
|
break;
|
|
case '*':
|
|
case '[':
|
|
case '_':
|
|
case '`':
|
|
bs = !code_blocks;
|
|
break;
|
|
case '.':
|
|
bs = escflags & ESC_NUM && !code_blocks;
|
|
break;
|
|
case '<':
|
|
if (code_blocks == 0) {
|
|
md_named("lt");
|
|
c = '\0';
|
|
}
|
|
break;
|
|
case '=':
|
|
if (escflags & ESC_BOL && !code_blocks) {
|
|
md_named("equals");
|
|
c = '\0';
|
|
}
|
|
break;
|
|
case '>':
|
|
if (code_blocks == 0) {
|
|
md_named("gt");
|
|
c = '\0';
|
|
}
|
|
break;
|
|
case '\\':
|
|
uc = 0;
|
|
nextfont = NULL;
|
|
switch (mandoc_escape(&s, &seq, &sz)) {
|
|
case ESCAPE_UNICODE:
|
|
uc = mchars_num2uc(seq + 1, sz - 1);
|
|
break;
|
|
case ESCAPE_NUMBERED:
|
|
uc = mchars_num2char(seq, sz);
|
|
break;
|
|
case ESCAPE_SPECIAL:
|
|
uc = mchars_spec2cp(seq, sz);
|
|
break;
|
|
case ESCAPE_UNDEF:
|
|
uc = *seq;
|
|
break;
|
|
case ESCAPE_DEVICE:
|
|
md_rawword("markdown");
|
|
continue;
|
|
case ESCAPE_FONTBOLD:
|
|
case ESCAPE_FONTCB:
|
|
nextfont = "**";
|
|
break;
|
|
case ESCAPE_FONTITALIC:
|
|
case ESCAPE_FONTCI:
|
|
nextfont = "*";
|
|
break;
|
|
case ESCAPE_FONTBI:
|
|
nextfont = "***";
|
|
break;
|
|
case ESCAPE_FONT:
|
|
case ESCAPE_FONTCR:
|
|
case ESCAPE_FONTROMAN:
|
|
nextfont = "";
|
|
break;
|
|
case ESCAPE_FONTPREV:
|
|
nextfont = prevfont;
|
|
break;
|
|
case ESCAPE_BREAK:
|
|
breakline = 1;
|
|
break;
|
|
case ESCAPE_NOSPACE:
|
|
case ESCAPE_SKIPCHAR:
|
|
case ESCAPE_OVERSTRIKE:
|
|
/* XXX not implemented */
|
|
/* FALLTHROUGH */
|
|
case ESCAPE_ERROR:
|
|
default:
|
|
break;
|
|
}
|
|
if (nextfont != NULL && !code_blocks) {
|
|
if (*currfont != '\0') {
|
|
outflags &= ~MD_spc;
|
|
md_rawword(currfont);
|
|
}
|
|
prevfont = currfont;
|
|
currfont = nextfont;
|
|
if (*currfont != '\0') {
|
|
outflags &= ~MD_spc;
|
|
md_rawword(currfont);
|
|
}
|
|
}
|
|
if (uc) {
|
|
if ((uc < 0x20 && uc != 0x09) ||
|
|
(uc > 0x7E && uc < 0xA0))
|
|
uc = 0xFFFD;
|
|
if (code_blocks) {
|
|
seq = mchars_uc2str(uc);
|
|
fputs(seq, stdout);
|
|
outcount += strlen(seq);
|
|
} else {
|
|
printf("&#%d;", uc);
|
|
outcount++;
|
|
}
|
|
escflags &= ~ESC_FON;
|
|
}
|
|
c = '\0';
|
|
break;
|
|
case ']':
|
|
bs = escflags & ESC_SQU && !code_blocks;
|
|
escflags |= ESC_HYP;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
if (bs)
|
|
putchar('\\');
|
|
md_char(c);
|
|
if (breakline &&
|
|
(*s == '\0' || *s == ' ' || *s == ASCII_NBRSP)) {
|
|
printf(" \n");
|
|
breakline = 0;
|
|
while (*s == ' ' || *s == ASCII_NBRSP)
|
|
s++;
|
|
}
|
|
}
|
|
if (*currfont != '\0') {
|
|
outflags &= ~MD_spc;
|
|
md_rawword(currfont);
|
|
} else if (s[-2] == ' ')
|
|
escflags |= ESC_EOL;
|
|
else
|
|
escflags &= ~ESC_EOL;
|
|
}
|
|
|
|
/*
|
|
* Print a single HTML named character reference.
|
|
*/
|
|
static void
|
|
md_named(const char *s)
|
|
{
|
|
printf("&%s;", s);
|
|
escflags &= ~(ESC_FON | ESC_EOL);
|
|
outcount++;
|
|
}
|
|
|
|
/*
|
|
* Print a single raw character and maintain certain escape flags.
|
|
*/
|
|
static void
|
|
md_char(unsigned char c)
|
|
{
|
|
if (c != '\0') {
|
|
putchar(c);
|
|
if (c == '*')
|
|
escflags |= ESC_FON;
|
|
else
|
|
escflags &= ~ESC_FON;
|
|
outcount++;
|
|
}
|
|
if (c != ']')
|
|
escflags &= ~ESC_HYP;
|
|
if (c == ' ' || c == '\t' || c == '>')
|
|
return;
|
|
if (isdigit(c) == 0)
|
|
escflags &= ~ESC_NUM;
|
|
else if (escflags & ESC_BOL)
|
|
escflags |= ESC_NUM;
|
|
escflags &= ~ESC_BOL;
|
|
}
|
|
|
|
static int
|
|
md_cond_head(struct roff_node *n)
|
|
{
|
|
return n->type == ROFFT_HEAD;
|
|
}
|
|
|
|
static int
|
|
md_cond_body(struct roff_node *n)
|
|
{
|
|
return n->type == ROFFT_BODY;
|
|
}
|
|
|
|
static int
|
|
md_pre_abort(struct roff_node *n)
|
|
{
|
|
abort();
|
|
}
|
|
|
|
static int
|
|
md_pre_raw(struct roff_node *n)
|
|
{
|
|
const char *prefix;
|
|
|
|
if ((prefix = md_act(n->tok)->prefix) != NULL) {
|
|
md_rawword(prefix);
|
|
outflags &= ~MD_spc;
|
|
if (*prefix == '`')
|
|
code_blocks++;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
md_post_raw(struct roff_node *n)
|
|
{
|
|
const char *suffix;
|
|
|
|
if ((suffix = md_act(n->tok)->suffix) != NULL) {
|
|
outflags &= ~(MD_spc | MD_nl);
|
|
md_rawword(suffix);
|
|
if (*suffix == '`')
|
|
code_blocks--;
|
|
}
|
|
}
|
|
|
|
static int
|
|
md_pre_word(struct roff_node *n)
|
|
{
|
|
const char *prefix;
|
|
|
|
if ((prefix = md_act(n->tok)->prefix) != NULL) {
|
|
md_word(prefix);
|
|
outflags &= ~MD_spc;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
md_post_word(struct roff_node *n)
|
|
{
|
|
const char *suffix;
|
|
|
|
if ((suffix = md_act(n->tok)->suffix) != NULL) {
|
|
outflags &= ~(MD_spc | MD_nl);
|
|
md_word(suffix);
|
|
}
|
|
}
|
|
|
|
static void
|
|
md_post_pc(struct roff_node *n)
|
|
{
|
|
struct roff_node *nn;
|
|
|
|
md_post_raw(n);
|
|
if (n->parent->tok != MDOC_Rs)
|
|
return;
|
|
|
|
if ((nn = roff_node_next(n)) != NULL) {
|
|
md_word(",");
|
|
if (nn->tok == n->tok &&
|
|
(nn = roff_node_prev(n)) != NULL &&
|
|
nn->tok == n->tok)
|
|
md_word("and");
|
|
} else {
|
|
md_word(".");
|
|
outflags |= MD_nl;
|
|
}
|
|
}
|
|
|
|
static int
|
|
md_pre_skip(struct roff_node *n)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
md_pre_syn(struct roff_node *n)
|
|
{
|
|
struct roff_node *np;
|
|
|
|
if ((n->flags & NODE_SYNPRETTY) == 0 ||
|
|
(np = roff_node_prev(n)) == NULL)
|
|
return;
|
|
|
|
if (np->tok == n->tok &&
|
|
n->tok != MDOC_Ft &&
|
|
n->tok != MDOC_Fo &&
|
|
n->tok != MDOC_Fn) {
|
|
outflags |= MD_br;
|
|
return;
|
|
}
|
|
|
|
switch (np->tok) {
|
|
case MDOC_Fd:
|
|
case MDOC_Fn:
|
|
case MDOC_Fo:
|
|
case MDOC_In:
|
|
case MDOC_Vt:
|
|
outflags |= MD_sp;
|
|
break;
|
|
case MDOC_Ft:
|
|
if (n->tok != MDOC_Fn && n->tok != MDOC_Fo) {
|
|
outflags |= MD_sp;
|
|
break;
|
|
}
|
|
/* FALLTHROUGH */
|
|
default:
|
|
outflags |= MD_br;
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int
|
|
md_pre_An(struct roff_node *n)
|
|
{
|
|
switch (n->norm->An.auth) {
|
|
case AUTH_split:
|
|
outflags &= ~MD_An_nosplit;
|
|
outflags |= MD_An_split;
|
|
return 0;
|
|
case AUTH_nosplit:
|
|
outflags &= ~MD_An_split;
|
|
outflags |= MD_An_nosplit;
|
|
return 0;
|
|
default:
|
|
if (outflags & MD_An_split)
|
|
outflags |= MD_br;
|
|
else if (n->sec == SEC_AUTHORS &&
|
|
! (outflags & MD_An_nosplit))
|
|
outflags |= MD_An_split;
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
static int
|
|
md_pre_Ap(struct roff_node *n)
|
|
{
|
|
outflags &= ~MD_spc;
|
|
md_word("'");
|
|
outflags &= ~MD_spc;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
md_pre_Bd(struct roff_node *n)
|
|
{
|
|
switch (n->norm->Bd.type) {
|
|
case DISP_unfilled:
|
|
case DISP_literal:
|
|
return md_pre_Dl(n);
|
|
default:
|
|
return md_pre_D1(n);
|
|
}
|
|
}
|
|
|
|
static int
|
|
md_pre_Bk(struct roff_node *n)
|
|
{
|
|
switch (n->type) {
|
|
case ROFFT_BLOCK:
|
|
return 1;
|
|
case ROFFT_BODY:
|
|
outflags |= MD_Bk;
|
|
return 1;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static void
|
|
md_post_Bk(struct roff_node *n)
|
|
{
|
|
if (n->type == ROFFT_BODY)
|
|
outflags &= ~MD_Bk;
|
|
}
|
|
|
|
static int
|
|
md_pre_Bl(struct roff_node *n)
|
|
{
|
|
n->norm->Bl.count = 0;
|
|
if (n->norm->Bl.type == LIST_column)
|
|
md_pre_Dl(n);
|
|
outflags |= MD_sp;
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
md_post_Bl(struct roff_node *n)
|
|
{
|
|
n->norm->Bl.count = 0;
|
|
if (n->norm->Bl.type == LIST_column)
|
|
md_post_D1(n);
|
|
outflags |= MD_sp;
|
|
}
|
|
|
|
static int
|
|
md_pre_D1(struct roff_node *n)
|
|
{
|
|
/*
|
|
* Markdown blockquote syntax does not work inside code blocks.
|
|
* The best we can do is fall back to another nested code block.
|
|
*/
|
|
if (code_blocks) {
|
|
md_stack('\t');
|
|
code_blocks++;
|
|
} else {
|
|
md_stack('>');
|
|
quote_blocks++;
|
|
}
|
|
outflags |= MD_sp;
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
md_post_D1(struct roff_node *n)
|
|
{
|
|
md_stack((char)-1);
|
|
if (code_blocks)
|
|
code_blocks--;
|
|
else
|
|
quote_blocks--;
|
|
outflags |= MD_sp;
|
|
}
|
|
|
|
static int
|
|
md_pre_Dl(struct roff_node *n)
|
|
{
|
|
/*
|
|
* Markdown code block syntax does not work inside blockquotes.
|
|
* The best we can do is fall back to another nested blockquote.
|
|
*/
|
|
if (quote_blocks) {
|
|
md_stack('>');
|
|
quote_blocks++;
|
|
} else {
|
|
md_stack('\t');
|
|
code_blocks++;
|
|
}
|
|
outflags |= MD_sp;
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
md_pre_En(struct roff_node *n)
|
|
{
|
|
if (n->norm->Es == NULL ||
|
|
n->norm->Es->child == NULL)
|
|
return 1;
|
|
|
|
md_word(n->norm->Es->child->string);
|
|
outflags &= ~MD_spc;
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
md_post_En(struct roff_node *n)
|
|
{
|
|
if (n->norm->Es == NULL ||
|
|
n->norm->Es->child == NULL ||
|
|
n->norm->Es->child->next == NULL)
|
|
return;
|
|
|
|
outflags &= ~MD_spc;
|
|
md_word(n->norm->Es->child->next->string);
|
|
}
|
|
|
|
static int
|
|
md_pre_Eo(struct roff_node *n)
|
|
{
|
|
if (n->end == ENDBODY_NOT &&
|
|
n->parent->head->child == NULL &&
|
|
n->child != NULL &&
|
|
n->child->end != ENDBODY_NOT)
|
|
md_preword();
|
|
else if (n->end != ENDBODY_NOT ? n->child != NULL :
|
|
n->parent->head->child != NULL && (n->child != NULL ||
|
|
(n->parent->tail != NULL && n->parent->tail->child != NULL)))
|
|
outflags &= ~(MD_spc | MD_nl);
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
md_post_Eo(struct roff_node *n)
|
|
{
|
|
if (n->end != ENDBODY_NOT) {
|
|
outflags |= MD_spc;
|
|
return;
|
|
}
|
|
|
|
if (n->child == NULL && n->parent->head->child == NULL)
|
|
return;
|
|
|
|
if (n->parent->tail != NULL && n->parent->tail->child != NULL)
|
|
outflags &= ~MD_spc;
|
|
else
|
|
outflags |= MD_spc;
|
|
}
|
|
|
|
static int
|
|
md_pre_Fa(struct roff_node *n)
|
|
{
|
|
int am_Fa;
|
|
|
|
am_Fa = n->tok == MDOC_Fa;
|
|
|
|
if (am_Fa)
|
|
n = n->child;
|
|
|
|
while (n != NULL) {
|
|
md_rawword("*");
|
|
outflags &= ~MD_spc;
|
|
md_node(n);
|
|
outflags &= ~MD_spc;
|
|
md_rawword("*");
|
|
if ((n = n->next) != NULL)
|
|
md_word(",");
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
md_post_Fa(struct roff_node *n)
|
|
{
|
|
struct roff_node *nn;
|
|
|
|
if ((nn = roff_node_next(n)) != NULL && nn->tok == MDOC_Fa)
|
|
md_word(",");
|
|
}
|
|
|
|
static int
|
|
md_pre_Fd(struct roff_node *n)
|
|
{
|
|
md_pre_syn(n);
|
|
md_pre_raw(n);
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
md_post_Fd(struct roff_node *n)
|
|
{
|
|
md_post_raw(n);
|
|
outflags |= MD_br;
|
|
}
|
|
|
|
static void
|
|
md_post_Fl(struct roff_node *n)
|
|
{
|
|
struct roff_node *nn;
|
|
|
|
md_post_raw(n);
|
|
if (n->child == NULL && (nn = roff_node_next(n)) != NULL &&
|
|
nn->type != ROFFT_TEXT && (nn->flags & NODE_LINE) == 0)
|
|
outflags &= ~MD_spc;
|
|
}
|
|
|
|
static int
|
|
md_pre_Fn(struct roff_node *n)
|
|
{
|
|
md_pre_syn(n);
|
|
|
|
if ((n = n->child) == NULL)
|
|
return 0;
|
|
|
|
md_rawword("**");
|
|
outflags &= ~MD_spc;
|
|
md_node(n);
|
|
outflags &= ~MD_spc;
|
|
md_rawword("**");
|
|
outflags &= ~MD_spc;
|
|
md_word("(");
|
|
|
|
if ((n = n->next) != NULL)
|
|
md_pre_Fa(n);
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
md_post_Fn(struct roff_node *n)
|
|
{
|
|
md_word(")");
|
|
if (n->flags & NODE_SYNPRETTY) {
|
|
md_word(";");
|
|
outflags |= MD_sp;
|
|
}
|
|
}
|
|
|
|
static int
|
|
md_pre_Fo(struct roff_node *n)
|
|
{
|
|
switch (n->type) {
|
|
case ROFFT_BLOCK:
|
|
md_pre_syn(n);
|
|
break;
|
|
case ROFFT_HEAD:
|
|
if (n->child == NULL)
|
|
return 0;
|
|
md_pre_raw(n);
|
|
break;
|
|
case ROFFT_BODY:
|
|
outflags &= ~(MD_spc | MD_nl);
|
|
md_word("(");
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
md_post_Fo(struct roff_node *n)
|
|
{
|
|
switch (n->type) {
|
|
case ROFFT_HEAD:
|
|
if (n->child != NULL)
|
|
md_post_raw(n);
|
|
break;
|
|
case ROFFT_BODY:
|
|
md_post_Fn(n);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int
|
|
md_pre_In(struct roff_node *n)
|
|
{
|
|
if (n->flags & NODE_SYNPRETTY) {
|
|
md_pre_syn(n);
|
|
md_rawword("**");
|
|
outflags &= ~MD_spc;
|
|
md_word("#include <");
|
|
} else {
|
|
md_word("<");
|
|
outflags &= ~MD_spc;
|
|
md_rawword("*");
|
|
}
|
|
outflags &= ~MD_spc;
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
md_post_In(struct roff_node *n)
|
|
{
|
|
if (n->flags & NODE_SYNPRETTY) {
|
|
outflags &= ~MD_spc;
|
|
md_rawword(">**");
|
|
outflags |= MD_nl;
|
|
} else {
|
|
outflags &= ~MD_spc;
|
|
md_rawword("*>");
|
|
}
|
|
}
|
|
|
|
static int
|
|
md_pre_It(struct roff_node *n)
|
|
{
|
|
struct roff_node *bln;
|
|
|
|
switch (n->type) {
|
|
case ROFFT_BLOCK:
|
|
return 1;
|
|
|
|
case ROFFT_HEAD:
|
|
bln = n->parent->parent;
|
|
if (bln->norm->Bl.comp == 0 &&
|
|
bln->norm->Bl.type != LIST_column)
|
|
outflags |= MD_sp;
|
|
outflags |= MD_nl;
|
|
|
|
switch (bln->norm->Bl.type) {
|
|
case LIST_item:
|
|
outflags |= MD_br;
|
|
return 0;
|
|
case LIST_inset:
|
|
case LIST_diag:
|
|
case LIST_ohang:
|
|
outflags |= MD_br;
|
|
return 1;
|
|
case LIST_tag:
|
|
case LIST_hang:
|
|
outflags |= MD_sp;
|
|
return 1;
|
|
case LIST_bullet:
|
|
md_rawword("*\t");
|
|
break;
|
|
case LIST_dash:
|
|
case LIST_hyphen:
|
|
md_rawword("-\t");
|
|
break;
|
|
case LIST_enum:
|
|
md_preword();
|
|
if (bln->norm->Bl.count < 99)
|
|
bln->norm->Bl.count++;
|
|
printf("%d.\t", bln->norm->Bl.count);
|
|
escflags &= ~ESC_FON;
|
|
break;
|
|
case LIST_column:
|
|
outflags |= MD_br;
|
|
return 0;
|
|
default:
|
|
return 0;
|
|
}
|
|
outflags &= ~MD_spc;
|
|
outflags |= MD_nonl;
|
|
outcount = 0;
|
|
md_stack('\t');
|
|
if (code_blocks || quote_blocks)
|
|
list_blocks++;
|
|
return 0;
|
|
|
|
case ROFFT_BODY:
|
|
bln = n->parent->parent;
|
|
switch (bln->norm->Bl.type) {
|
|
case LIST_ohang:
|
|
outflags |= MD_br;
|
|
break;
|
|
case LIST_tag:
|
|
case LIST_hang:
|
|
md_pre_D1(n);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return 1;
|
|
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static void
|
|
md_post_It(struct roff_node *n)
|
|
{
|
|
struct roff_node *bln;
|
|
int i, nc;
|
|
|
|
if (n->type != ROFFT_BODY)
|
|
return;
|
|
|
|
bln = n->parent->parent;
|
|
switch (bln->norm->Bl.type) {
|
|
case LIST_bullet:
|
|
case LIST_dash:
|
|
case LIST_hyphen:
|
|
case LIST_enum:
|
|
md_stack((char)-1);
|
|
if (code_blocks || quote_blocks)
|
|
list_blocks--;
|
|
break;
|
|
case LIST_tag:
|
|
case LIST_hang:
|
|
md_post_D1(n);
|
|
break;
|
|
|
|
case LIST_column:
|
|
if (n->next == NULL)
|
|
break;
|
|
|
|
/* Calculate the array index of the current column. */
|
|
|
|
i = 0;
|
|
while ((n = n->prev) != NULL && n->type != ROFFT_HEAD)
|
|
i++;
|
|
|
|
/*
|
|
* If a width was specified for this column,
|
|
* subtract what printed, and
|
|
* add the same spacing as in mdoc_term.c.
|
|
*/
|
|
|
|
nc = bln->norm->Bl.ncols;
|
|
i = i < nc ? strlen(bln->norm->Bl.cols[i]) - outcount +
|
|
(nc < 5 ? 4 : nc == 5 ? 3 : 1) : 1;
|
|
if (i < 1)
|
|
i = 1;
|
|
while (i-- > 0)
|
|
putchar(' ');
|
|
|
|
outflags &= ~MD_spc;
|
|
escflags &= ~ESC_FON;
|
|
outcount = 0;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
md_post_Lb(struct roff_node *n)
|
|
{
|
|
if (n->sec == SEC_LIBRARY)
|
|
outflags |= MD_br;
|
|
}
|
|
|
|
static void
|
|
md_uri(const char *s)
|
|
{
|
|
while (*s != '\0') {
|
|
if (strchr("%()<>", *s) != NULL) {
|
|
printf("%%%2.2hhX", *s);
|
|
outcount += 3;
|
|
} else {
|
|
putchar(*s);
|
|
outcount++;
|
|
}
|
|
s++;
|
|
}
|
|
}
|
|
|
|
static int
|
|
md_pre_Lk(struct roff_node *n)
|
|
{
|
|
const struct roff_node *link, *descr, *punct;
|
|
|
|
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. */
|
|
descr = link->next;
|
|
if (descr == punct)
|
|
descr = link; /* no text */
|
|
md_rawword("[");
|
|
outflags &= ~MD_spc;
|
|
do {
|
|
md_word(descr->string);
|
|
descr = descr->next;
|
|
} while (descr != punct);
|
|
outflags &= ~MD_spc;
|
|
|
|
/* Link target. */
|
|
md_rawword("](");
|
|
md_uri(link->string);
|
|
outflags &= ~MD_spc;
|
|
md_rawword(")");
|
|
|
|
/* Trailing punctuation. */
|
|
while (punct != NULL) {
|
|
md_word(punct->string);
|
|
punct = punct->next;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
md_pre_Mt(struct roff_node *n)
|
|
{
|
|
const struct roff_node *nch;
|
|
|
|
md_rawword("[");
|
|
outflags &= ~MD_spc;
|
|
for (nch = n->child; nch != NULL; nch = nch->next)
|
|
md_word(nch->string);
|
|
outflags &= ~MD_spc;
|
|
md_rawword("](mailto:");
|
|
for (nch = n->child; nch != NULL; nch = nch->next) {
|
|
md_uri(nch->string);
|
|
if (nch->next != NULL) {
|
|
putchar(' ');
|
|
outcount++;
|
|
}
|
|
}
|
|
outflags &= ~MD_spc;
|
|
md_rawword(")");
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
md_pre_Nd(struct roff_node *n)
|
|
{
|
|
outflags &= ~MD_nl;
|
|
outflags |= MD_spc;
|
|
md_word("-");
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
md_pre_Nm(struct roff_node *n)
|
|
{
|
|
switch (n->type) {
|
|
case ROFFT_BLOCK:
|
|
outflags |= MD_Bk;
|
|
md_pre_syn(n);
|
|
break;
|
|
case ROFFT_HEAD:
|
|
case ROFFT_ELEM:
|
|
md_pre_raw(n);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
md_post_Nm(struct roff_node *n)
|
|
{
|
|
switch (n->type) {
|
|
case ROFFT_BLOCK:
|
|
outflags &= ~MD_Bk;
|
|
break;
|
|
case ROFFT_HEAD:
|
|
case ROFFT_ELEM:
|
|
md_post_raw(n);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int
|
|
md_pre_No(struct roff_node *n)
|
|
{
|
|
outflags |= MD_spc_force;
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
md_pre_Ns(struct roff_node *n)
|
|
{
|
|
outflags &= ~MD_spc;
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
md_post_Pf(struct roff_node *n)
|
|
{
|
|
if (n->next != NULL && (n->next->flags & NODE_LINE) == 0)
|
|
outflags &= ~MD_spc;
|
|
}
|
|
|
|
static int
|
|
md_pre_Pp(struct roff_node *n)
|
|
{
|
|
outflags |= MD_sp;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
md_pre_Rs(struct roff_node *n)
|
|
{
|
|
if (n->sec == SEC_SEE_ALSO)
|
|
outflags |= MD_sp;
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
md_pre_Sh(struct roff_node *n)
|
|
{
|
|
switch (n->type) {
|
|
case ROFFT_BLOCK:
|
|
if (n->sec == SEC_AUTHORS)
|
|
outflags &= ~(MD_An_split | MD_An_nosplit);
|
|
break;
|
|
case ROFFT_HEAD:
|
|
outflags |= MD_sp;
|
|
md_rawword(n->tok == MDOC_Sh ? "#" : "##");
|
|
break;
|
|
case ROFFT_BODY:
|
|
outflags |= MD_sp;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
md_pre_Sm(struct roff_node *n)
|
|
{
|
|
if (n->child == NULL)
|
|
outflags ^= MD_Sm;
|
|
else if (strcmp("on", n->child->string) == 0)
|
|
outflags |= MD_Sm;
|
|
else
|
|
outflags &= ~MD_Sm;
|
|
|
|
if (outflags & MD_Sm)
|
|
outflags |= MD_spc;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
md_pre_Vt(struct roff_node *n)
|
|
{
|
|
switch (n->type) {
|
|
case ROFFT_BLOCK:
|
|
md_pre_syn(n);
|
|
return 1;
|
|
case ROFFT_BODY:
|
|
case ROFFT_ELEM:
|
|
md_pre_raw(n);
|
|
return 1;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static void
|
|
md_post_Vt(struct roff_node *n)
|
|
{
|
|
switch (n->type) {
|
|
case ROFFT_BODY:
|
|
case ROFFT_ELEM:
|
|
md_post_raw(n);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int
|
|
md_pre_Xr(struct roff_node *n)
|
|
{
|
|
n = n->child;
|
|
if (n == NULL)
|
|
return 0;
|
|
md_node(n);
|
|
n = n->next;
|
|
if (n == NULL)
|
|
return 0;
|
|
outflags &= ~MD_spc;
|
|
md_word("(");
|
|
md_node(n);
|
|
md_word(")");
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
md_pre__T(struct roff_node *n)
|
|
{
|
|
if (n->parent->tok == MDOC_Rs && n->parent->norm->Rs.quote_T)
|
|
md_word("\"");
|
|
else
|
|
md_rawword("*");
|
|
outflags &= ~MD_spc;
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
md_post__T(struct roff_node *n)
|
|
{
|
|
outflags &= ~MD_spc;
|
|
if (n->parent->tok == MDOC_Rs && n->parent->norm->Rs.quote_T)
|
|
md_word("\"");
|
|
else
|
|
md_rawword("*");
|
|
md_post_pc(n);
|
|
}
|
|
|
|
static int
|
|
md_pre_br(struct roff_node *n)
|
|
{
|
|
outflags |= MD_br;
|
|
return 0;
|
|
}
|