map/textfile/textfile.c

/**
 * 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 void
get_line(struct map_rect_priv *mr)
{
        if(mr->f) {
                if (!mr->m->is_pipe) 
                        mr->pos=ftell(mr->f);
                else
                        mr->pos+=mr->lastlen;
                fgets(mr->line, SIZE, mr->f);
                mr->lastlen=strlen(mr->line)+1;
                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->filename);
        if(m->charset) {
                g_free(m->charset);
        }
        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)
{
        struct map_rect_priv *mr=priv_data;
        mr->attr_pos=0;
        mr->attr_last=attr_none;
}

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 (attr_from_line(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 (attr_from_line(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;
        if (map->flags & 1)
                mr->item.id_hi=1;
        else
                mr->item.id_hi=0;
        mr->item.id_lo=0;
        mr->item.meth=&methods_textfile;
        mr->item.priv_data=mr;
        if (map->is_pipe) {
#ifdef HAVE_POPEN
                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");
                mr->pos=0;
                mr->lastlen=0;
#else
                dbg(0,"map_rect_new_textfile is unable to work with pipes %s\n",map->filename);
#endif 
        } 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) {
#ifdef HAVE_POPEN
                        pclose(mr->f);
#endif
                }
                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 %d\n",mr->item.id_hi);
                        if (mr->m->flags & 1) {
                                if (!mr->item.id_hi) 
                                        return NULL;
                                mr->item.id_hi=0;
                        } else {
                                if (mr->item.id_hi) 
                                        return NULL;
                                mr->item.id_hi=1;
                        }
                        if (mr->m->is_pipe) {
#ifdef HAVE_POPEN
                                pclose(mr->f);
                                mr->f=popen(mr->args, "r");
                                mr->pos=0;
                                mr->lastlen=0;
#endif
                        } else {
                                fseek(mr->f, 0, SEEK_SET);
                                clearerr(mr->f);
                        }
                        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 (attr_from_line(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) {
#ifndef _MSC_VER
                pclose(mr->f);
                mr->f=popen(mr->args, "r");
                mr->pos=0;
                mr->lastlen=0;
#endif /* _MSC_VER */
        } 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 callback_list *cbl)
{
        struct map_priv *m;
        struct attr *data=attr_search(attrs, NULL, attr_data);
        struct attr *charset=attr_search(attrs, NULL, attr_charset);
        struct attr *flags=attr_search(attrs, NULL, attr_flags);
        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(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;
        if (flags) 
                m->flags=flags->u.num;
        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);
        g_free(wdata);
        return m;
}

void
plugin_init(void)
{
        dbg(1,"textfile: plugin_init\n");
        plugin_register_map_type("textfile", map_new_textfile);
}

1	/**
2	* Navit, a modular navigation system.
3	* Copyright (C) 2005-2008 Navit Team
4	*
5	* This program is free software; you can redistribute it and/or
6	* modify it under the terms of the GNU General Public License
7	* version 2 as published by the Free Software Foundation.
8	*
9	* This program is distributed in the hope that it will be useful,
10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12	* GNU General Public License for more details.
13	*
14	* You should have received a copy of the GNU General Public License
15	* along with this program; if not, write to the
16	* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17	* Boston, MA 02110-1301, USA.
18	*/
19
20	#include <glib.h>
21	#include <stdlib.h>
22	#include <stdio.h>
23	#include <string.h>
24	#include <math.h>
25	#include "config.h"
26	#include "debug.h"
27	#include "plugin.h"
28	#include "projection.h"
29	#include "item.h"
30	#include "map.h"
31	#include "maptype.h"
32	#include "attr.h"
33	#include "transform.h"
34	#include "file.h"
35
36	#include "textfile.h"
37
38	static int map_id;
39
40	static void
41	get_line(struct map_rect_priv *mr)
42	{
43	if(mr->f) {
44	if (!mr->m->is_pipe)
45	mr->pos=ftell(mr->f);
46	else
47	mr->pos+=mr->lastlen;
48	fgets(mr->line, SIZE, mr->f);
49	mr->lastlen=strlen(mr->line)+1;
50	if (strlen(mr->line) >= SIZE-1)
51	printf("line too long\n");
52	}
53	}
54
55	static void
56	map_destroy_textfile(struct map_priv *m)
57	{
58	dbg(1,"map_destroy_textfile\n");
59	g_free(m->filename);
60	if(m->charset) {
61	g_free(m->charset);
62	}
63	g_free(m);
64	}
65
66	static void
67	textfile_coord_rewind(void *priv_data)
68	{
69	}
70
71	static int
72	parse_line(struct map_rect_priv *mr, int attr)
73	{
74	int pos;
75
76	pos=coord_parse(mr->line, projection_mg, &mr->c);
77	if (pos < strlen(mr->line) && attr) {
78	strcpy(mr->attrs, mr->line+pos);
79	}
80	return pos;
81	}
82
83	static int
84	textfile_coord_get(void priv_data, struct coord c, int count)
85	{
86	struct map_rect_priv *mr=priv_data;
87	int ret=0;
88	dbg(1,"textfile_coord_get %d\n",count);
89	while (count--) {
90	if (mr->f && !feof(mr->f) && (!mr->item.id_hi \|\| !mr->eoc) && parse_line(mr, mr->item.id_hi)) {
91	*c=mr->c;
92	dbg(1,"c=0x%x,0x%x\n", c->x, c->y);
93	c++;
94	ret++;
95	get_line(mr);
96	if (mr->item.id_hi)
97	mr->eoc=1;
98	} else {
99	mr->more=0;
100	break;
101	}
102	}
103	return ret;
104	}
105
106	static void
107	textfile_attr_rewind(void *priv_data)
108	{
109	struct map_rect_priv *mr=priv_data;
110	mr->attr_pos=0;
111	mr->attr_last=attr_none;
112	}
113
114	static void
115	textfile_encode_attr(char attr_val, enum attr_type attr_type, struct attr attr)
116	{
117	if (attr_type >= attr_type_int_begin && attr_type <= attr_type_int_end)
118	attr->u.num=atoi(attr_val);
119	else
120	attr->u.str=attr_val;
121	}
122
123	static int
124	textfile_attr_get(void priv_data, enum attr_type attr_type, struct attr attr)
125	{
126	struct map_rect_priv *mr=priv_data;
127	char *str=NULL;
128	dbg(1,"textfile_attr_get mr=%p attrs='%s' ", mr, mr->attrs);
129	if (attr_type != mr->attr_last) {
130	dbg(1,"reset attr_pos\n");
131	mr->attr_pos=0;
132	mr->attr_last=attr_type;
133	}
134	if (attr_type == attr_any) {
135	dbg(1,"attr_any");
136	if (attr_from_line(mr->attrs,NULL,&mr->attr_pos,mr->attr, mr->attr_name)) {
137	attr_type=attr_from_name(mr->attr_name);
138	dbg(1,"found attr '%s' 0x%x\n", mr->attr_name, attr_type);
139	attr->type=attr_type;
140	textfile_encode_attr(mr->attr, attr_type, attr);
141	return 1;
142	}
143	} else {
144	str=attr_to_name(attr_type);
145	dbg(1,"attr='%s' ",str);
146	if (attr_from_line(mr->attrs,str,&mr->attr_pos,mr->attr, NULL)) {
147	textfile_encode_attr(mr->attr, attr_type, attr);
148	dbg(1,"found\n");
149	return 1;
150	}
151	}
152	dbg(1,"not found\n");
153	return 0;
154	}
155
156	static struct item_methods methods_textfile = {
157	textfile_coord_rewind,
158	textfile_coord_get,
159	textfile_attr_rewind,
160	textfile_attr_get,
161	};
162
163	static struct map_rect_priv *
164	map_rect_new_textfile(struct map_priv map, struct map_selection sel)
165	{
166	struct map_rect_priv *mr;
167
168	dbg(1,"map_rect_new_textfile\n");
169	mr=g_new0(struct map_rect_priv, 1);
170	mr->m=map;
171	mr->sel=sel;
172	if (map->flags & 1)
173	mr->item.id_hi=1;
174	else
175	mr->item.id_hi=0;
176	mr->item.id_lo=0;
177	mr->item.meth=&methods_textfile;
178	mr->item.priv_data=mr;
179	if (map->is_pipe) {
180	#ifdef HAVE_POPEN
181	char oargs,args=g_strdup(map->filename),*sep=" ";
182	enum layer_type lay;
183	g_free(mr->args);
184	while (sel) {
185	oargs=args;
186	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);
187	g_free(oargs);
188	for (lay=layer_town ; lay < layer_end ; lay++) {
189	oargs=args;
190	args=g_strdup_printf("%s%s%d", oargs, sep, sel->order);
191	g_free(oargs);
192	sep=",";
193	}
194	sel=sel->next;
195	}
196	dbg(1,"popen args %s\n", args);
197	mr->args=args;
198	mr->f=popen(mr->args, "r");
199	mr->pos=0;
200	mr->lastlen=0;
201	#else
202	dbg(0,"map_rect_new_textfile is unable to work with pipes %s\n",map->filename);
203	#endif
204	} else {
205	mr->f=fopen(map->filename, "r");
206	}
207	if(!mr->f) {
208	printf("map_rect_new_textfile unable to open textfile %s\n",map->filename);
209	}
210	get_line(mr);
211	return mr;
212	}
213
214
215	static void
216	map_rect_destroy_textfile(struct map_rect_priv *mr)
217	{
218	if (mr->f) {
219	if (mr->m->is_pipe) {
220	#ifdef HAVE_POPEN
221	pclose(mr->f);
222	#endif
223	}
224	else {
225	fclose(mr->f);
226	}
227	}
228	g_free(mr);
229	}
230
231	static struct item *
232	map_rect_get_item_textfile(struct map_rect_priv *mr)
233	{
234	char *p,type[SIZE];
235	dbg(1,"map_rect_get_item_textfile id_hi=%d line=%s", mr->item.id_hi, mr->line);
236	if (!mr->f) {
237	return NULL;
238	}
239	while (mr->more) {
240	struct coord c;
241	textfile_coord_get(mr, &c, 1);
242	}
243	for(;;) {
244	if (feof(mr->f)) {
245	dbg(1,"map_rect_get_item_textfile: eof %d\n",mr->item.id_hi);
246	if (mr->m->flags & 1) {
247	if (!mr->item.id_hi)
248	return NULL;
249	mr->item.id_hi=0;
250	} else {
251	if (mr->item.id_hi)
252	return NULL;
253	mr->item.id_hi=1;
254	}
255	if (mr->m->is_pipe) {
256	#ifdef HAVE_POPEN
257	pclose(mr->f);
258	mr->f=popen(mr->args, "r");
259	mr->pos=0;
260	mr->lastlen=0;
261	#endif
262	} else {
263	fseek(mr->f, 0, SEEK_SET);
264	clearerr(mr->f);
265	}
266	get_line(mr);
267	}
268	if ((p=strchr(mr->line,'\n')))
269	*p='\0';
270	if (mr->item.id_hi) {
271	mr->attrs[0]='\0';
272	if (!parse_line(mr, 1)) {
273	get_line(mr);
274	continue;
275	}
276	dbg(1,"map_rect_get_item_textfile: point found\n");
277	mr->eoc=0;
278	mr->item.id_lo=mr->pos;
279	} else {
280	if (parse_line(mr, 1)) {
281	get_line(mr);
282	continue;
283	}
284	dbg(1,"map_rect_get_item_textfile: line found\n");
285	if (! mr->line[0]) {
286	get_line(mr);
287	continue;
288	}
289	mr->item.id_lo=mr->pos;
290	strcpy(mr->attrs, mr->line);
291	get_line(mr);
292	dbg(1,"mr=%p attrs=%s\n", mr, mr->attrs);
293	}
294	dbg(1,"get_attrs %s\n", mr->attrs);
295	if (attr_from_line(mr->attrs,"type",NULL,type,NULL)) {
296	dbg(1,"type='%s'\n", type);
297	mr->item.type=item_from_name(type);
298	if (mr->item.type == type_none)
299	printf("Warning: type '%s' unknown\n", type);
300	} else {
301	get_line(mr);
302	continue;
303	}
304	mr->attr_last=attr_none;
305	mr->more=1;
306	dbg(1,"return attr='%s'\n", mr->attrs);
307	return &mr->item;
308	}
309	}
310
311	static struct item *
312	map_rect_get_item_byid_textfile(struct map_rect_priv *mr, int id_hi, int id_lo)
313	{
314	if (mr->m->is_pipe) {
315	#ifndef _MSC_VER
316	pclose(mr->f);
317	mr->f=popen(mr->args, "r");
318	mr->pos=0;
319	mr->lastlen=0;
320	#endif /* _MSC_VER */
321	} else
322	fseek(mr->f, id_lo, SEEK_SET);
323	get_line(mr);
324	mr->item.id_hi=id_hi;
325	return map_rect_get_item_textfile(mr);
326	}
327
328	static struct map_methods map_methods_textfile = {
329	projection_mg,
330	"iso8859-1",
331	map_destroy_textfile,
332	map_rect_new_textfile,
333	map_rect_destroy_textfile,
334	map_rect_get_item_textfile,
335	map_rect_get_item_byid_textfile,
336	};
337
338	static struct map_priv *
339	map_new_textfile(struct map_methods meth, struct attr attrs, struct callback_list cbl)
340	{
341	struct map_priv *m;
342	struct attr *data=attr_search(attrs, NULL, attr_data);
343	struct attr *charset=attr_search(attrs, NULL, attr_charset);
344	struct attr *flags=attr_search(attrs, NULL, attr_flags);
345	struct file_wordexp *wexp;
346	int len,is_pipe=0;
347	char *wdata;
348	char **wexp_data;
349	if (! data)
350	return NULL;
351	dbg(1,"map_new_textfile %s\n", data->u.str);
352	wdata=g_strdup(data->u.str);
353	len=strlen(wdata);
354	if (len && wdata[len-1] == '\|') {
355	wdata[len-1]='\0';
356	is_pipe=1;
357	}
358	wexp=file_wordexp_new(wdata);
359	wexp_data=file_wordexp_get_array(wexp);
360	*meth=map_methods_textfile;
361
362	m=g_new0(struct map_priv, 1);
363	m->id=++map_id;
364	m->filename=g_strdup(wexp_data[0]);
365	m->is_pipe=is_pipe;
366	if (flags)
367	m->flags=flags->u.num;
368	dbg(1,"map_new_textfile %s %s\n", m->filename, wdata);
369	if (charset) {
370	m->charset=g_strdup(charset->u.str);
371	meth->charset=m->charset;
372	}
373	file_wordexp_destroy(wexp);
374	g_free(wdata);
375	return m;
376	}
377
378	void
379	plugin_init(void)
380	{
381	dbg(1,"textfile: plugin_init\n");
382	plugin_register_map_type("textfile", map_new_textfile);
383	}
384