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/* This file is part of GNU Dico.
Copyright (C) 2012-2019 Sergey Poznyakoff
GNU Dico is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GNU Dico is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Dico. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
#include <dico.h>
#include <unistd.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <sysexits.h>
#include <string.h>
#include "gcide.h"
static void
usage(FILE *fp)
{
fprintf(fp, "usage: %s [-debug] [-struct] [-nopr] [-help] FILE [OFF SIZE]\n", dico_program_name);
}
struct output_closure {
FILE *stream;
int flags;
int level;
};
static int
print_tag(int end, struct gcide_tag *tag, void *data)
{
size_t i;
struct output_closure *clos = data;
if (end) {
clos->level--;
printf("%*.*s", 2*clos->level,2*clos->level, "");
printf("END");
if (tag->tag_parmc)
printf(" %s", tag->tag_name);
putchar('\n');
return 0;
}
printf("%*.*s", 2*clos->level,2*clos->level, "");
switch (tag->tag_type) {
case gcide_content_unspecified:
break;
case gcide_content_text:
printf("TEXT");
for (i = 0; i < tag->tag_parmc; i++)
printf(" %s", tag->tag_parmv[i]);
printf(":\n%s\n%*.*sENDTEXT", tag->tag_v.text,
2*clos->level, 2*clos->level, "");
if (tag->tag_parmc)
printf(" %s", tag->tag_name);
putchar('\n');
break;
case gcide_content_taglist:
printf("BEGIN");
for (i = 0; i < tag->tag_parmc; i++)
printf(" %s", tag->tag_parmv[i]);
putchar('\n');
clos->level++;
break;
}
return 0;
}
#define GCIDE_NOPR 0x0000001
#define GOF_IGNORE 0x0001000
#define GOF_AS 0x0002000
static int
print_text(int end, struct gcide_tag *tag, void *data)
{
struct output_closure *clos = data;
static char *quote[2] = { "``", "''" };
static char *ref[2] = { "{" , "}" };
switch (tag->tag_type) {
case gcide_content_unspecified:
break;
case gcide_content_text:
if (clos->flags & GOF_IGNORE)
break;
if (clos->flags & GOF_AS) {
char *s = tag->tag_v.text;
if (strncmp(s, "as", 2) == 0 &&
(isspace(s[3]) || ispunct(s[3]))) {
fwrite(s, 3, 1, clos->stream);
for (s += 3; *s && isspace(*s); s++)
fputc(*s, clos->stream);
fprintf(clos->stream, "%s%s", quote[0], s);
} else
fprintf(clos->stream, "%s", quote[0]);
} else
fprintf(clos->stream, "%s", tag->tag_v.text);
break;
case gcide_content_taglist:
if (tag->tag_parmc) {
clos->flags &= ~GOF_AS;
if (end) {
if (strcmp(tag->tag_name, "pr") == 0 &&
clos->flags & GCIDE_NOPR)
clos->flags &= ~GOF_IGNORE;
else if (clos->flags & GOF_IGNORE)
break;
else if (strcmp(tag->tag_name, "as") == 0)
fprintf(clos->stream, "%s", quote[1]);
else if (strcmp(tag->tag_name, "er") == 0)
fprintf(clos->stream, "%s", ref[1]);
} else {
if (strcmp(tag->tag_name, "pr") == 0 &&
clos->flags & GCIDE_NOPR)
clos->flags |= GOF_IGNORE;
else if (clos->flags & GOF_IGNORE)
break;
else if (strcmp(tag->tag_name, "sn") == 0)
fputc('\n', clos->stream);
else if (strcmp(tag->tag_name, "as") == 0)
clos->flags |= GOF_AS;
else if (strcmp(tag->tag_name, "er") == 0)
fprintf(clos->stream, "%s", ref[0]);
}
}
}
return 0;
}
int
main(int argc, char **argv)
{
char *file;
unsigned long offset = 0;
unsigned long size = 0;
FILE *fp;
char *textbuf;
struct gcide_parse_tree *tree;
struct output_closure clos;
int show_struct = 0;
int dbglex = 0;
dico_set_program_name(argv[0]);
clos.flags = 0;
clos.stream = stdout;
while (--argc) {
char *arg = *++argv;
if (strcmp(arg, "-debug") == 0)
dbglex = 1;
else if (strcmp(arg, "-h") == 0 || strcmp(arg, "-help") == 0) {
usage(stdout);
exit(0);
} else if (strcmp(arg, "-struct") == 0)
show_struct = 1;
else if (strcmp(arg, "-nopr") == 0)
clos.flags = GCIDE_NOPR;
else if (strcmp(arg, "--") == 0) {
--argc;
++argv;
break;
} else if (arg[0] == '-') {
usage(stderr);
exit(EX_USAGE);
} else
break;
}
if (argc == 0 || argc > 3) {
usage(stderr);
exit(EX_USAGE);
}
file = argv[0];
if (argc > 1) {
offset = atoi(argv[1]);
if (argc == 3)
size = atoi(argv[2]);
}
if (size == 0) {
struct stat st;
if (stat(file, &st)) {
dico_log(L_ERR, errno, "stat");
exit(EX_UNAVAILABLE);
}
if (st.st_size < offset) {
dico_log(L_ERR, 0, "invalid offset");
exit(EX_UNAVAILABLE);
}
size = st.st_size - offset;
}
textbuf = malloc(size);
if (!textbuf) {
DICO_LOG_ERRNO();
exit(EX_UNAVAILABLE);
}
fp = fopen(file, "r");
if (!fp) {
dico_log(L_ERR, errno, "cannot open file %s", file);
exit(EX_UNAVAILABLE);
}
if (fseek(fp, offset, SEEK_SET)) {
dico_log(L_ERR, errno, "%s", file);
exit(EX_UNAVAILABLE);
}
if (fread(textbuf, size, 1, fp) != 1) {
dico_log(L_ERR, errno, "%s: read error", file);
exit(EX_UNAVAILABLE);
}
tree = gcide_markup_parse(textbuf, size, dbglex);
if (!tree)
exit(EX_UNAVAILABLE);
clos.level = 0;
gcide_parse_tree_inorder(tree, show_struct ? print_tag : print_text, &clos);
gcide_parse_tree_free(tree);
exit(0);
}
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