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/**
* Navit, a modular navigation system.
* Copyright (C) 2005-2008 Navit Team
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This program 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 this program; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <glib.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include "config.h"
#include "debug.h"
#include "plugin.h"
#include "projection.h"
#include "item.h"
#include "map.h"
#include "maptype.h"
#include "attr.h"
#include "transform.h"
#include "file.h"
#include "textfile.h"
static int map_id;
static int
get_tag(char *line, char *name, int *pos, char *ret, char *name_ret)
{
int len=0,quoted;
char *p,*e,*n;
dbg(1,"get_tag %s from %s\n", name, line);
if (name)
len=strlen(name);
if (pos)
p=line+*pos;
else
p=line;
for(;;) {
while (*p == ' ') {
p++;
}
if (! *p)
return 0;
n=p;
e=strchr(p,'=');
if (! e)
return 0;
p=e+1;
quoted=0;
while (*p) {
if (*p == ' ' && !quoted)
break;
if (*p == '"')
quoted=1-quoted;
p++;
}
if (name == NULL || (e-n == len && !strncmp(n, name, len))) {
if (name_ret) {
len=e-n;
strncpy(name_ret, n, len);
name_ret[len]='\0';
}
e++;
len=p-e;
if (e[0] == '"') {
e++;
len-=2;
}
strncpy(ret, e, len);
ret[len]='\0';
if (pos)
*pos=p-line;
return 1;
}
}
return 0;
}
static void
get_line(struct map_rect_priv *mr)
{
if(mr->f) {
mr->pos=ftell(mr->f);
fgets(mr->line, SIZE, mr->f);
if (strlen(mr->line) >= SIZE-1)
printf("line too long\n");
}
}
static void
map_destroy_textfile(struct map_priv *m)
{
dbg(1,"map_destroy_textfile\n");
g_free(m);
}
static void
textfile_coord_rewind(void *priv_data)
{
}
static int
parse_line(struct map_rect_priv *mr, int attr)
{
int pos;
pos=coord_parse(mr->line, projection_mg, &mr->c);
if (pos < strlen(mr->line) && attr) {
strcpy(mr->attrs, mr->line+pos);
}
return pos;
}
static int
textfile_coord_get(void *priv_data, struct coord *c, int count)
{
struct map_rect_priv *mr=priv_data;
int ret=0;
dbg(1,"textfile_coord_get %d\n",count);
while (count--) {
if (mr->f && !feof(mr->f) && (!mr->item.id_hi || !mr->eoc) && parse_line(mr, mr->item.id_hi)) {
*c=mr->c;
dbg(1,"c=0x%x,0x%x\n", c->x, c->y);
c++;
ret++;
get_line(mr);
if (mr->item.id_hi)
mr->eoc=1;
} else {
mr->more=0;
break;
}
}
return ret;
}
static void
textfile_attr_rewind(void *priv_data)
{
}
static void
textfile_encode_attr(char *attr_val, enum attr_type attr_type, struct attr *attr)
{
if (attr_type >= attr_type_int_begin && attr_type <= attr_type_int_end)
attr->u.num=atoi(attr_val);
else
attr->u.str=attr_val;
}
static int
textfile_attr_get(void *priv_data, enum attr_type attr_type, struct attr *attr)
{
struct map_rect_priv *mr=priv_data;
char *str=NULL;
dbg(1,"textfile_attr_get mr=%p attrs='%s' ", mr, mr->attrs);
if (attr_type != mr->attr_last) {
dbg(1,"reset attr_pos\n");
mr->attr_pos=0;
mr->attr_last=attr_type;
}
if (attr_type == attr_any) {
dbg(1,"attr_any");
if (get_tag(mr->attrs,NULL,&mr->attr_pos,mr->attr, mr->attr_name)) {
attr_type=attr_from_name(mr->attr_name);
dbg(1,"found attr '%s' 0x%x\n", mr->attr_name, attr_type);
attr->type=attr_type;
textfile_encode_attr(mr->attr, attr_type, attr);
return 1;
}
} else {
str=attr_to_name(attr_type);
dbg(1,"attr='%s' ",str);
if (get_tag(mr->attrs,str,&mr->attr_pos,mr->attr, NULL)) {
textfile_encode_attr(mr->attr, attr_type, attr);
dbg(1,"found\n");
return 1;
}
}
dbg(1,"not found\n");
return 0;
}
static struct item_methods methods_textfile = {
textfile_coord_rewind,
textfile_coord_get,
textfile_attr_rewind,
textfile_attr_get,
};
static struct map_rect_priv *
map_rect_new_textfile(struct map_priv *map, struct map_selection *sel)
{
struct map_rect_priv *mr;
dbg(1,"map_rect_new_textfile\n");
mr=g_new0(struct map_rect_priv, 1);
mr->m=map;
mr->sel=sel;
mr->item.id_hi=0;
mr->item.id_lo=0;
mr->item.meth=&methods_textfile;
mr->item.priv_data=mr;
if (map->is_pipe) {
char *oargs,*args=g_strdup(map->filename),*sep=" ";
enum layer_type lay;
g_free(mr->args);
while (sel) {
oargs=args;
args=g_strdup_printf("%s 0x%x 0x%x 0x%x 0x%x", oargs, sel->u.c_rect.lu.x, sel->u.c_rect.lu.y, sel->u.c_rect.rl.x, sel->u.c_rect.rl.y);
g_free(oargs);
for (lay=layer_town ; lay < layer_end ; lay++) {
oargs=args;
args=g_strdup_printf("%s%s%d", oargs, sep, sel->order);
g_free(oargs);
sep=",";
}
sel=sel->next;
}
dbg(1,"popen args %s\n", args);
mr->args=args;
mr->f=popen(mr->args, "r");
} else {
mr->f=fopen(map->filename, "r");
}
if(!mr->f) {
printf("map_rect_new_textfile unable to open textfile %s\n",map->filename);
}
get_line(mr);
return mr;
}
static void
map_rect_destroy_textfile(struct map_rect_priv *mr)
{
if (mr->f) {
if (mr->m->is_pipe)
pclose(mr->f);
else
fclose(mr->f);
}
g_free(mr);
}
static struct item *
map_rect_get_item_textfile(struct map_rect_priv *mr)
{
char *p,type[SIZE];
dbg(1,"map_rect_get_item_textfile id_hi=%d line=%s", mr->item.id_hi, mr->line);
if (!mr->f) {
return NULL;
}
while (mr->more) {
struct coord c;
textfile_coord_get(mr, &c, 1);
}
for(;;) {
if (feof(mr->f)) {
dbg(1,"map_rect_get_item_textfile: eof\n");
if (mr->item.id_hi) {
return NULL;
}
mr->item.id_hi++;
if (mr->m->is_pipe) {
pclose(mr->f);
mr->f=popen(mr->args, "r");
} else
fseek(mr->f, 0, SEEK_SET);
get_line(mr);
}
if ((p=strchr(mr->line,'\n')))
*p='\0';
if (mr->item.id_hi) {
mr->attrs[0]='\0';
if (!parse_line(mr, 1)) {
get_line(mr);
continue;
}
dbg(1,"map_rect_get_item_textfile: point found\n");
mr->eoc=0;
mr->item.id_lo=mr->pos;
} else {
if (parse_line(mr, 1)) {
get_line(mr);
continue;
}
dbg(1,"map_rect_get_item_textfile: line found\n");
if (! mr->line[0]) {
get_line(mr);
continue;
}
mr->item.id_lo=mr->pos;
strcpy(mr->attrs, mr->line);
get_line(mr);
dbg(1,"mr=%p attrs=%s\n", mr, mr->attrs);
}
dbg(1,"get_attrs %s\n", mr->attrs);
if (get_tag(mr->attrs,"type",NULL,type,NULL)) {
dbg(1,"type='%s'\n", type);
mr->item.type=item_from_name(type);
if (mr->item.type == type_none)
printf("Warning: type '%s' unknown\n", type);
} else {
get_line(mr);
continue;
}
mr->attr_last=attr_none;
mr->more=1;
dbg(1,"return attr='%s'\n", mr->attrs);
return &mr->item;
}
}
static struct item *
map_rect_get_item_byid_textfile(struct map_rect_priv *mr, int id_hi, int id_lo)
{
if (mr->m->is_pipe) {
pclose(mr->f);
mr->f=popen(mr->args, "r");
} else
fseek(mr->f, id_lo, SEEK_SET);
get_line(mr);
mr->item.id_hi=id_hi;
return map_rect_get_item_textfile(mr);
}
static struct map_methods map_methods_textfile = {
projection_mg,
"iso8859-1",
map_destroy_textfile,
map_rect_new_textfile,
map_rect_destroy_textfile,
map_rect_get_item_textfile,
map_rect_get_item_byid_textfile,
};
static struct map_priv *
map_new_textfile(struct map_methods *meth, struct attr **attrs)
{
struct map_priv *m;
struct attr *data=attr_search(attrs, NULL, attr_data);
struct attr *charset=attr_search(attrs, NULL, attr_charset);
struct file_wordexp *wexp;
int len,is_pipe=0;
char *wdata;
char **wexp_data;
if (! data)
return NULL;
dbg(1,"map_new_textfile %s\n", data->u.str);
wdata=g_strdup_printf(data->u.str);
len=strlen(wdata);
if (len && wdata[len-1] == '|') {
wdata[len-1]='\0';
is_pipe=1;
}
wexp=file_wordexp_new(wdata);
wexp_data=file_wordexp_get_array(wexp);
*meth=map_methods_textfile;
m=g_new0(struct map_priv, 1);
m->id=++map_id;
m->filename=g_strdup(wexp_data[0]);
m->is_pipe=is_pipe;
dbg(1,"map_new_textfile %s %s\n", m->filename, wdata);
if (charset) {
m->charset=g_strdup(charset->u.str);
meth->charset=m->charset;
}
file_wordexp_destroy(wexp);
return m;
}
void
plugin_init(void)
{
dbg(1,"textfile: plugin_init\n");
plugin_register_map_type("textfile", map_new_textfile);
}
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