forked from ge-ne/bibtool
-
Notifications
You must be signed in to change notification settings - Fork 0
/
crossref.c
375 lines (357 loc) · 17 KB
/
crossref.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
/*** crossref.c ***************************************************************
**
** This file is part of BibTool.
** It is distributed under the GNU General Public License.
** See the file COPYING for details.
**
** (c) 2007-2017 Gerd Neugebauer
**
** Net: gene@gerd-neugebauer.de
**
** This program 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 2, or (at your option)
** any later version.
**
** 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., 675 Mass Ave, Cambridge, MA 02139, USA.
**
**-----------------------------------------------------------------------------
** Description:
** This module contains functions to expand crossref entries.
**
******************************************************************************/
#include <bibtool/general.h>
#include <bibtool/error.h>
#include <bibtool/crossref.h>
#include <bibtool/symbols.h>
#include <bibtool/s_parse.h>
#include <bibtool/database.h>
#include <bibtool/sbuffer.h>
#include <bibtool/rsc.h>
#include <bibtool/entry.h>
/*****************************************************************************/
/* Internal Programs */
/*===========================================================================*/
/*****************************************************************************/
/* External Programs */
/*===========================================================================*/
/*---------------------------------------------------------------------------*/
typedef struct mAP /* */
{ rec_type src_rec; /*source record type index*/
Symbol src_field; /* */
rec_type dest_rec; /*target record type index*/
Symbol dest_field; /* */
struct mAP * next_map; /* */
} *Map, SMap; /* */
#define SourceRecord(M) ((M)->src_rec)
#define SourceField(M) ((M)->src_field)
#define DestinationRecord(M) ((M)->dest_rec)
#define DestinationField(M) ((M)->dest_field)
#define NextMap(M) ((M)->next_map)
/*-----------------------------------------------------------------------------
** Function*: new_map()
** Type: Map
** Purpose: allocate a new Map structure
** Arguments:
** sr source record type index
** sf source field name
** dr destination record type index
** df destination field name
** Returns: the new map
**___________________________________________________ */
static Map new_map(sr,sf,dr,df) /* */
rec_type sr; /* */
Symbol sf; /* */
rec_type dr; /* */
Symbol df; /* */
{ Map m; /* */
if ( (m = (Map)malloc(sizeof(SMap))) == (Map)NULL)/* */
{ OUT_OF_MEMORY("map"); } /* */
/* */
SourceRecord(m) = sr; /* */
SourceField(m) = sf; /* */
DestinationRecord(m) = dr; /* */
DestinationField(m) = df; /* */
NextMap(m) = NULL; /* */
return m; /* */
} /*------------------------*/
/*-----------------------------------------------------------------------------
** Function*: free_map()
** Type: void
** Purpose: Free a chain of map structures
** Arguments:
** m the map
** Returns: nothing
**___________________________________________________ */
static void free_map(m) /* */
Map m; /* */
{ Map nxt; /* */
while (m) /* */
{ nxt = NextMap(m); /* */
free(m); /* */
m = nxt; /* */
} /* */
} /*------------------------*/
#define MAP_SIZE 101
static Map map[MAP_SIZE]; /* */
#define MAP_INDEX(SR,SF,DR) \
(int)((((SR) % 73) + \
((long)(SF) & 0xfff) + \
((DR) % 1023)) % MAP_SIZE);
/*-----------------------------------------------------------------------------
** Function: clear_map()
** Type: void
** Purpose: Reset the map to it's initial state where no elements are
** contained.
** Arguments: none
** Returns: nothing
**___________________________________________________ */
void clear_map() /* */
{ register int i; /* */
/* */
for (i = 0; i < MAP_SIZE; i++) /* */
{ free_map(map[i]); /* */
map[i] = NULL; /* */
} /* */
} /*------------------------*/
/*-----------------------------------------------------------------------------
** Function: map_add()
** Type: int
** Purpose: Add or overwrite a filed name mapping.
**
** Arguments:
** s_rec the index of the source record type
** s_fld the source field name
** d_rec the index of the destination record type
** d_fld the destination field name
** Returns: nothing
**___________________________________________________ */
void map_add(s_rec,s_fld,d_rec,d_fld) /* */
rec_type s_rec; /* */
Symbol s_fld; /* */
rec_type d_rec; /* */
Symbol d_fld; /* */
{ int idx; /* */
Map m; /* */
/* */
idx = MAP_INDEX(s_rec, s_fld, d_rec); /* */
m = map[idx]; /* */
if (m == NULL ) /* */
{ map[idx] = new_map(s_rec, s_fld, d_rec, d_fld);/* */
return; /* */
} /* */
/* */
for (;;) /* */
{ if (SourceRecord(m) == s_rec && /* */
SourceField(m) == s_fld && /* */
DestinationRecord(m) == d_rec ) /* */
{ DestinationField(m) = d_fld; /* */
return; /* */
} /* */
if (NextMap(m) == NULL ) /* */
{ NextMap(m) = new_map(s_rec, s_fld, /* */
d_rec, d_fld); /* */
return; /* */
} /* */
m = NextMap(m); /* */
} /* */
} /*------------------------*/
/*-----------------------------------------------------------------------------
** Function: map_get()
** Type: Symbol
** Purpose: Getter for a map element.
** Arguments:
** s_rec the index of the source entry type
** s_fld the name of the source field
** d_rec the index of the destination entry type
** Returns: the new field name or |NO_SYMBOL|
**___________________________________________________ */
Symbol map_get(s_rec, s_fld, d_rec) /* */
rec_type s_rec; /* */
Symbol s_fld; /* */
rec_type d_rec; /* */
{ int i = MAP_INDEX(s_rec, s_fld, d_rec); /* */
Map m = map[i]; /* */
/* */
for (; m; m = NextMap(m)) /* */
{ if (SourceRecord(m) == s_rec && /* */
SourceField(m) == s_fld && /* */
DestinationRecord(m) == d_rec ) /* */
{ return DestinationField(m); } /* */
} /* */
return NO_SYMBOL; /* */
} /*------------------------*/
/*-----------------------------------------------------------------------------
** Function: crossref_map()
** Type: int
** Purpose:
**
** Arguments:
** spec the argument
** Returns: nothing
**___________________________________________________ */
void crossref_map(spec) /* */
String spec; /* */
{ Symbol *src, *dest; /* */
Symbol src_field, dest_field; /* */
Symbol *sp, *dp; /* */
rec_type s_rec, d_rec; /* */
/* */
sp_open(spec); /* */
if ((src = sp_symbols(&spec)) == NULL) return; /* */
sp_skip(&spec); /* */
if ((src_field = SParseSymbol(&spec)) == NULL) return;/* */
sp_skip(&spec); /* */
if ((dest = sp_symbols(&spec)) == NULL) return; /* */
sp_skip(&spec); /* */
if ((dest_field = SParseSymbol(&spec)) == NULL) return;/* */
sp_eos(&spec); /* */
sp_close(); /* */
/* */
for (sp = src; *sp; sp++) /* */
{ s_rec = find_entry_type(SymbolValue(*sp)); /* */
if (s_rec == BIB_NOOP) /* */
{ WARNING3("Unknown source entry type `", /* */
SymbolValue(*sp), /* */
"'. Mapping ignored."); /* */
continue; /* */
} /* */
/* */
for (dp = dest; *dp; dp++) /* */
{ d_rec = find_entry_type(SymbolValue(*dp)); /* */
if (d_rec == BIB_NOOP) /* */
{ WARNING3("Unknown destination entry type `",/* */
SymbolValue(*dp), /* */
"'. Mapping ignored."); /* */
continue; /* */
} /* */
/* */
map_add(s_rec, src_field, d_rec, dest_field);/* */
} /* */
} /* */
/* */
#ifndef COMPLEX_SYMBOL
free(src); /* */
free(dest); /* */
#endif
} /*------------------------*/
static Symbol NONE = (Symbol)"x"; /* TODO */
/*-----------------------------------------------------------------------------
** Function*: insert_record()
** Type: bool
** Purpose: Find a record and insert some new entryies.
** Arguments:
** db the database
** rec the record
** hp the heap pointer
** s the key of the entry
** msg the message prefix for an unknown entry message
** Returns: |true| iff the record could be inserted
**___________________________________________________ */
static bool insert_record(db, rec, hp, s, msg) /* */
DB db; /* */
Record rec; /* */
register Symbol *hp; /* */
Symbol s; /* */
String msg; /* */
{ Record r; /* */
Symbol t, ms; /* */
int i; /* */
/* */
if ((r = db_find(db, s)) == RecordNULL) /* */
{ ERROR3(msg," entry not found: ", /* */
(char*)SymbolValue(s)); /* */
return false; /* */
} /* */
/* */
for (i = RecordFree(r), hp = RecordHeap(r); /* visit all fields */
i > 0; /* */
i -= 2) /* */
{ s = *hp++; /* */
t = *hp++; /* */
if (t != NO_SYMBOL) /* */
{ ms = map_get(RecordType(r), s, /* */
RecordType(rec)); /* */
provide_to_record(rec, ms ? ms : s, t); /* */
} /* */
} /* */
return true; /* */
} /*------------------------*/
/*-----------------------------------------------------------------------------
** Function: expand_crossref()
** Purpose: Expand all items inherited via a crossref.
** Arguments:
** db Database containing the entries.
** rec The record to expand
** Returns: |false| iff an error has occured
**___________________________________________________ */
bool expand_crossref(db, rec) /* */
DB db; /* */
Record rec; /* */
{ register Symbol *hp; /* */
register int i; /* */
String x; /* */
Symbol s; /* */
Record r = rec; /* */
int limit = rsc_xref_limit; /* */
Symbol xdata = (rsc_expand_xdata /* */
? sym_xdata /* */
: NONE); /* */
Symbol crossref = (rsc_expand_crossref /* */
? sym_crossref /* */
: NONE); /* */
/* */
DebugPrint1("expand_crossref"); /* */
/* */
while (RecordIsXREF(r) && limit-- >= 0) /* */
{ /* */
for (i = RecordFree(r), hp = RecordHeap(r); /* search crossref field */
i > 0 /* */
&& (*hp != crossref && *hp != xdata); /* */
i -= 2, hp += 2) /* */
{ } /* */
/* */
if (i <= 0) /* */
{ DebugPrint1("*** No crossref found."); /* */
return false; /* */
} /* */
else if (*hp == sym_crossref) /* ---------------------- */
{ /* */
if (rec == r) { *hp = NULL; } /* Delete the first xref */
x = SymbolValue(*++hp); /* */
x++; /* */
sp_open(x); /* Try to extract */
if ((s = SParseSymbol(&x)) == NO_SYMBOL) /* the crossref as symbol*/
{ return false; } /* */
/* */
insert_record(db, rec, hp, s, "Crossref"); /* */
} /* */
else if (*hp == sym_xdata) /* ---------------------- */
{ /* */
*hp = NULL; /* Delete the first xref */
x = SymbolValue(*++hp); /* */
x++; /* */
sp_open(x); /* Try to extract */
/* */
if (sp_expect(&x, (String)"}", 0) ) /* */
return false; /* */
for (;;) /* */
{ if ((s = SParseSymbol(&x)) == NO_SYMBOL) /* */
{ return true; } /* */
/* */
insert_record(db, rec, hp, s, "XData"); /* */
/* */
if (sp_expect(&x, (String)"}", 0) ) break; /* */
sp_expect(&x, (String)",", 1); /* */
} /* */
} /* */
} /* */
return false; /* */
} /*------------------------*/