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/* $Id$ */
/*
* Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se>
*
* 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 AUTHOR DISCLAIMS ALL
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
* AUTHOR 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.
*/
#include <assert.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "libmdocml.h"
#include "private.h"
#ifdef __linux__
#define strlcat strncat
#endif
static int md_dummy_blk_in(int);
static int md_dummy_blk_out(int);
static int md_dummy_text_in(int, int *, char **);
static int md_dummy_text_out(int);
static int md_dummy_special(int);
static int md_dummy_head(void);
static int md_dummy_tail(void);
static void md_dummy_msg(const struct md_args *,
enum roffmsg, const char *,
const char *, const char *,
int, char *);
static void dbg_prologue(const char *);
static void dbg_epilogue(void);
static int dbg_lvl = 0;
static char dbg_line[72];
struct md_dummy {
struct rofftree *tree;
struct roffcb cb;
};
int
md_line_dummy(void *arg, char *buf, size_t sz)
{
struct md_dummy *p;
p = (struct md_dummy *)arg;
return(roff_engine(p->tree, buf, sz));
}
int
md_exit_dummy(void *data, int flush)
{
int c;
struct md_dummy *p;
p = (struct md_dummy *)data;
c = roff_free(p->tree, flush);
free(p);
return(c);
}
void *
md_init_dummy(const struct md_args *args,
struct md_mbuf *mbuf, const struct md_rbuf *rbuf)
{
struct md_dummy *p;
if (NULL == (p = malloc(sizeof(struct md_dummy)))) {
warn("malloc");
return(NULL);
}
p->cb.roffhead = md_dummy_head;
p->cb.rofftail = md_dummy_tail;
p->cb.roffin = md_dummy_text_in;
p->cb.roffout = md_dummy_text_out;
p->cb.roffblkin = md_dummy_blk_in;
p->cb.roffblkout = md_dummy_blk_out;
p->cb.roffspecial = md_dummy_special;
p->cb.roffmsg = md_dummy_msg;
p->tree = roff_alloc(args, mbuf, rbuf, &p->cb);
if (NULL == p->tree) {
free(p);
return(NULL);
}
return(p);
}
static void
dbg_prologue(const char *p)
{
int i;
(void)snprintf(dbg_line, sizeof(dbg_line) - 1, "%6s", p);
(void)strlcat(dbg_line, ": ", sizeof(dbg_line) - 1);
/* LINTED */
for (i = 0; i < dbg_lvl; i++)
(void)strlcat(dbg_line, " ", sizeof(dbg_line) - 1);
}
static void
dbg_epilogue(void)
{
assert(0 != dbg_line[0]);
(void)printf("%s\n", dbg_line);
}
static int
md_dummy_head(void)
{
return(1);
}
static int
md_dummy_tail(void)
{
return(1);
}
static int
md_dummy_special(int tok)
{
dbg_prologue("noop");
(void)strlcat(dbg_line, toknames[tok], sizeof(dbg_line) - 1);
dbg_epilogue();
return(1);
}
static int
md_dummy_blk_in(int tok)
{
dbg_prologue("blk");
(void)strlcat(dbg_line, toknames[tok], sizeof(dbg_line) - 1);
dbg_epilogue();
dbg_lvl++;
return(1);
}
static int
md_dummy_blk_out(int tok)
{
dbg_lvl--;
return(1);
}
/* ARGSUSED */
static int
md_dummy_text_in(int tok, int *argcp, char **argvp)
{
dbg_prologue("text");
(void)strlcat(dbg_line, toknames[tok], sizeof(dbg_line) - 1);
(void)strlcat(dbg_line, " ", sizeof(dbg_line) - 1);
while (ROFF_ARGMAX != *argcp) {
(void)strlcat(dbg_line, "[", sizeof(dbg_line) - 1);
(void)strlcat(dbg_line, tokargnames[*argcp],
sizeof(dbg_line) - 1);
if (*argvp) {
(void)strlcat(dbg_line, " [",
sizeof(dbg_line) - 1);
(void)strlcat(dbg_line, *argvp,
sizeof(dbg_line) - 1);
(void)strlcat(dbg_line, "]",
sizeof(dbg_line) - 1);
}
(void)strlcat(dbg_line, "]", sizeof(dbg_line) - 1);
argcp++;
argvp++;
}
dbg_epilogue();
return(1);
}
static int
md_dummy_text_out(int tok)
{
return(1);
}
static void
md_dummy_msg(const struct md_args *args, enum roffmsg lvl,
const char *buf, const char *pos,
const char *name, int line, char *msg)
{
char *p;
switch (lvl) {
case (ROFF_WARN):
p = "warning";
break;
case (ROFF_ERROR):
p = "error";
break;
}
assert(pos >= buf);
(void)fprintf(stderr, "%s:%d: %s: %s\n", name, line, p, msg);
}
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