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