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
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
|
%{
/*************************************************************************\
* Copyright (c) 2006 UChicago, as Operator of Argonne
* National Laboratory.
* EPICS BASE is distributed subject to a Software License Agreement found
* in file LICENSE that is included with this distribution.
\*************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <string.h>
#include "osiUnistd.h"
#include "macLib.h"
#include "dbmf.h"
#include "epicsExport.h"
#include "dbAccess.h"
#include "dbLoadTemplate.h"
#include "epicsColor.h"
static int line_num;
static int yyerror(char* str);
static char *sub_collect = NULL;
static char *sub_locals;
static char **vars = NULL;
static char *db_file_name = NULL;
static int var_count, sub_count;
/* We allocate MAX_VAR_FACTOR chars in the sub_collect string for each
* "variable=value," segment, and will accept at most dbTemplateMaxVars
* template variables. The user can adjust that variable to increase
* the number of variables or the length allocated for the buffer.
*/
#define MAX_VAR_FACTOR 50
int dbTemplateMaxVars = 100;
epicsExportAddress(int, dbTemplateMaxVars);
%}
%start substitution_file
%token <Str> WORD QUOTE
%token DBFILE
%token PATTERN
%token GLOBAL
%token EQUALS COMMA
%left O_PAREN C_PAREN
%left O_BRACE C_BRACE
%union
{
int Int;
char Char;
char *Str;
double Real;
}
%%
substitution_file: global_or_template
| substitution_file global_or_template
;
global_or_template: global_definitions
| template_substitutions
;
global_definitions: GLOBAL O_BRACE C_BRACE
| GLOBAL O_BRACE variable_definitions C_BRACE
{
#ifdef ERROR_STUFF
fprintf(stderr, "global_definitions: %s\n", sub_collect+1);
#endif
sub_locals += strlen(sub_locals);
}
;
template_substitutions: template_filename O_BRACE C_BRACE
{
#ifdef ERROR_STUFF
fprintf(stderr, "template_substitutions: %s unused\n", db_file_name);
#endif
dbmfFree(db_file_name);
db_file_name = NULL;
}
| template_filename O_BRACE substitutions C_BRACE
{
#ifdef ERROR_STUFF
fprintf(stderr, "template_substitutions: %s finished\n", db_file_name);
#endif
dbmfFree(db_file_name);
db_file_name = NULL;
}
;
template_filename: DBFILE WORD
{
#ifdef ERROR_STUFF
fprintf(stderr, "template_filename: %s\n", $2);
#endif
var_count = 0;
db_file_name = dbmfMalloc(strlen($2)+1);
strcpy(db_file_name, $2);
dbmfFree($2);
}
| DBFILE QUOTE
{
#ifdef ERROR_STUFF
fprintf(stderr, "template_filename: \"%s\"\n", $2);
#endif
var_count = 0;
db_file_name = dbmfMalloc(strlen($2)+1);
strcpy(db_file_name, $2);
dbmfFree($2);
}
;
substitutions: pattern_substitutions
| variable_substitutions
;
pattern_substitutions: PATTERN O_BRACE C_BRACE
| PATTERN O_BRACE C_BRACE pattern_definitions
| PATTERN O_BRACE pattern_names C_BRACE
| PATTERN O_BRACE pattern_names C_BRACE pattern_definitions
;
pattern_names: pattern_name
| pattern_names COMMA
| pattern_names pattern_name
;
pattern_name: WORD
{
#ifdef ERROR_STUFF
fprintf(stderr, "pattern_name: [%d] = %s\n", var_count, $1);
#endif
if (var_count >= dbTemplateMaxVars) {
TERMINAL_COLOR prior = setTerminalColor(stderr, getColor("EPICS_ERROR_COLOR"));
fprintf(stderr,
"More than dbTemplateMaxVars = %d macro variables used\n",
dbTemplateMaxVars);
setTerminalColor(stderr, prior);
yyerror(NULL);
}
else {
vars[var_count] = dbmfMalloc(strlen($1)+1);
strcpy(vars[var_count], $1);
var_count++;
dbmfFree($1);
}
}
;
pattern_definitions: pattern_definition
| pattern_definitions pattern_definition
;
pattern_definition: global_definitions
| O_BRACE C_BRACE
{
#ifdef ERROR_STUFF
fprintf(stderr, "pattern_definition: pattern_values empty\n");
fprintf(stderr, " dbLoadRecords(%s)\n", sub_collect+1);
#endif
dbLoadRecords(db_file_name, sub_collect+1);
}
| O_BRACE pattern_values C_BRACE
{
#ifdef ERROR_STUFF
fprintf(stderr, "pattern_definition:\n");
fprintf(stderr, " dbLoadRecords(%s)\n", sub_collect+1);
#endif
dbLoadRecords(db_file_name, sub_collect+1);
*sub_locals = '\0';
sub_count = 0;
}
| WORD O_BRACE pattern_values C_BRACE
{ /* DEPRECATED SYNTAX */
TERMINAL_COLOR prior = setTerminalColor(stderr, getColor("EPICS_ERROR_COLOR"));
fprintf(stderr,
"dbLoadTemplate: Substitution file uses deprecated syntax.\n"
" the string '%s' on line %d that comes just before the\n"
" '{' character is extraneous and should be removed.\n",
$1, line_num);
setTerminalColor(stderr, prior);
#ifdef ERROR_STUFF
fprintf(stderr, "pattern_definition:\n");
fprintf(stderr, " dbLoadRecords(%s)\n", sub_collect+1);
#endif
dbLoadRecords(db_file_name, sub_collect+1);
dbmfFree($1);
*sub_locals = '\0';
sub_count = 0;
}
;
pattern_values: pattern_value
| pattern_values COMMA
| pattern_values pattern_value
;
pattern_value: QUOTE
{
#ifdef ERROR_STUFF
fprintf(stderr, "pattern_value: [%d] = \"%s\"\n", sub_count, $1);
#endif
if (sub_count < var_count) {
strcat(sub_locals, ",");
strcat(sub_locals, vars[sub_count]);
strcat(sub_locals, "=\"");
strcat(sub_locals, $1);
strcat(sub_locals, "\"");
sub_count++;
} else {
TERMINAL_COLOR prior = setTerminalColor(stderr, getColor("EPICS_ERROR_COLOR"));
fprintf(stderr, "dbLoadTemplate: Too many values given, line %d.\n",
line_num);
setTerminalColor(stderr, prior);
}
dbmfFree($1);
}
| WORD
{
#ifdef ERROR_STUFF
fprintf(stderr, "pattern_value: [%d] = %s\n", sub_count, $1);
#endif
if (sub_count < var_count) {
strcat(sub_locals, ",");
strcat(sub_locals, vars[sub_count]);
strcat(sub_locals, "=");
strcat(sub_locals, $1);
sub_count++;
} else {
TERMINAL_COLOR prior = setTerminalColor(stderr, getColor("EPICS_ERROR_COLOR"));
fprintf(stderr, "dbLoadTemplate: Too many values given, line %d.\n",
line_num);
setTerminalColor(stderr, prior);
}
dbmfFree($1);
}
;
variable_substitutions: variable_substitution
| variable_substitutions variable_substitution
;
variable_substitution: global_definitions
| O_BRACE C_BRACE
{
#ifdef ERROR_STUFF
fprintf(stderr, "variable_substitution: variable_definitions empty\n");
fprintf(stderr, " dbLoadRecords(%s)\n", sub_collect+1);
#endif
dbLoadRecords(db_file_name, sub_collect+1);
}
| O_BRACE variable_definitions C_BRACE
{
#ifdef ERROR_STUFF
fprintf(stderr, "variable_substitution:\n");
fprintf(stderr, " dbLoadRecords(%s)\n", sub_collect+1);
#endif
dbLoadRecords(db_file_name, sub_collect+1);
*sub_locals = '\0';
}
| WORD O_BRACE variable_definitions C_BRACE
{ /* DEPRECATED SYNTAX */
TERMINAL_COLOR prior = setTerminalColor(stderr, getColor("EPICS_ERROR_COLOR"));
fprintf(stderr,
"dbLoadTemplate: Substitution file uses deprecated syntax.\n"
" the string '%s' on line %d that comes just before the\n"
" '{' character is extraneous and should be removed.\n",
$1, line_num);
setTerminalColor(stderr, prior);
#ifdef ERROR_STUFF
fprintf(stderr, "variable_substitution:\n");
fprintf(stderr, " dbLoadRecords(%s)\n", sub_collect+1);
#endif
dbLoadRecords(db_file_name, sub_collect+1);
dbmfFree($1);
*sub_locals = '\0';
}
;
variable_definitions: variable_definition
| variable_definitions COMMA
| variable_definitions variable_definition
;
variable_definition: WORD EQUALS WORD
{
#ifdef ERROR_STUFF
fprintf(stderr, "variable_definition: %s = %s\n", $1, $3);
#endif
strcat(sub_locals, ",");
strcat(sub_locals, $1);
strcat(sub_locals, "=");
strcat(sub_locals, $3);
dbmfFree($1); dbmfFree($3);
}
| WORD EQUALS QUOTE
{
#ifdef ERROR_STUFF
fprintf(stderr, "variable_definition: %s = \"%s\"\n", $1, $3);
#endif
strcat(sub_locals, ",");
strcat(sub_locals, $1);
strcat(sub_locals, "=\"");
strcat(sub_locals, $3);
strcat(sub_locals, "\"");
dbmfFree($1); dbmfFree($3);
}
;
%%
#include "dbLoadTemplate_lex.c"
static int yyerror(char* str)
{
TERMINAL_COLOR prior = setTerminalColor(stderr, getColor("EPICS_ERROR_COLOR"));
if (str)
fprintf(stderr, "Substitution file error: %s\n", str);
else
fprintf(stderr, "Substitution file error.\n");
fprintf(stderr, "line %d: '%s'\n", line_num, yytext);
setTerminalColor(stderr, prior);
return 0;
}
static int is_not_inited = 1;
int dbLoadTemplate(const char *sub_file, const char *cmd_collect)
{
FILE *fp;
int i;
line_num = 1;
if (!sub_file || !*sub_file) {
TERMINAL_COLOR prior = setTerminalColor(stderr, getColor("EPICS_ERROR_COLOR"));
fprintf(stderr, "must specify variable substitution file\n");
setTerminalColor(stderr, prior);
return -1;
}
if (dbTemplateMaxVars < 1)
{
TERMINAL_COLOR prior = setTerminalColor(stderr, getColor("EPICS_ERROR_COLOR"));
fprintf(stderr,"Error: dbTemplateMaxVars = %d, must be +ve\n",
dbTemplateMaxVars);
setTerminalColor(stderr, prior);
return -1;
}
fp = fopen(sub_file, "r");
if (!fp) {
TERMINAL_COLOR prior = setTerminalColor(stderr, getColor("EPICS_ERROR_COLOR"));
fprintf(stderr, "dbLoadTemplate: error opening sub file %s\n", sub_file);
setTerminalColor(stderr, prior);
return -1;
}
vars = malloc(dbTemplateMaxVars * sizeof(char*));
sub_collect = malloc(dbTemplateMaxVars * MAX_VAR_FACTOR);
if (!vars || !sub_collect) {
free(vars);
free(sub_collect);
fclose(fp);
TERMINAL_COLOR prior = setTerminalColor(stderr, getColor("EPICS_ERROR_COLOR"));
fprintf(stderr, "dbLoadTemplate: Out of memory!\n");
setTerminalColor(stderr, prior);
return -1;
}
strcpy(sub_collect, ",");
if (cmd_collect && *cmd_collect) {
strcat(sub_collect, cmd_collect);
sub_locals = sub_collect + strlen(sub_collect);
} else {
sub_locals = sub_collect;
*sub_locals = '\0';
}
var_count = 0;
sub_count = 0;
if (is_not_inited) {
yyin = fp;
is_not_inited = 0;
} else {
yyrestart(fp);
}
yyparse();
for (i = 0; i < var_count; i++) {
dbmfFree(vars[i]);
}
free(vars);
free(sub_collect);
vars = NULL;
fclose(fp);
if (db_file_name) {
dbmfFree(db_file_name);
db_file_name = NULL;
}
return 0;
}
|