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
|
/* New main for ecpg, the PostgreSQL embedded SQL precompiler. */
/* (C) Michael Meskes <meskes@debian.org> Feb 5th, 1998 */
/* Placed under the same copyright as PostgresSQL */
#include "postgres.h"
#include <stdio.h>
#if HAVE_GETOPT_H
#include <getopt.h>
#else
#include <unistd.h>
#endif
#include <stdlib.h>
#if defined(HAVE_STRING_H)
#include <string.h>
#else
#include <strings.h>
#endif
#include "extern.h"
static void
usage(char *progname)
{
fprintf(stderr, "ecpg - the postgresql preprocessor, version: %d.%d.%d\n", MAJOR_VERSION, MINOR_VERSION, PATCHLEVEL);
fprintf(stderr, "Usage: %s: [-v] [-d] [ -o outout file name] file1 [file2] ...\n", progname);
}
int
main(int argc, char *const argv[])
{
int fnr, c, out_option = 0;
while ((c = getopt(argc, argv, "vdo:")) != EOF)
{
switch (c)
{
case 'o':
yyout = fopen(optarg, "w");
if (yyout == NULL)
perror(optarg);
else
out_option = 1;
break;
case 'd':
debugging = 1;
break;
case 'v':
default:
usage(argv[0]);
}
}
if (optind >= argc) /* no files specified */
usage(argv[0]);
else
{
/* after the options there must not be anything but filenames */
for (fnr = optind; fnr < argc; fnr++)
{
char *filename,
*ptr2ext;
int ext = 0;
filename = mm_alloc(strlen(argv[fnr]) + 4);
strcpy(filename, argv[fnr]);
ptr2ext = strrchr(filename, '.');
/* no extension or extension not equal .pgc */
if (ptr2ext == NULL || strcmp(ptr2ext, ".pgc") != 0)
{
if (ptr2ext == NULL)
ext = 1; /* we need this information a while later */
ptr2ext = filename + strlen(filename);
ptr2ext[0] = '.';
}
/* make extension = .c */
ptr2ext[1] = 'c';
ptr2ext[2] = '\0';
if (out_option == 0)/* calculate the output name */
{
yyout = fopen(filename, "w");
if (yyout == NULL)
{
perror(filename);
free(filename);
continue;
}
}
if (ext == 1)
{
/* no extension => add .pgc */
ptr2ext = strrchr(filename, '.');
ptr2ext[1] = 'p';
ptr2ext[2] = 'g';
ptr2ext[3] = 'c';
ptr2ext[4] = '\0';
input_filename = filename;
}
else
input_filename = argv[fnr];
yyin = fopen(input_filename, "r");
if (yyin == NULL)
perror(argv[fnr]);
else
{
/* initialize lex */
lex_init();
/* we need two includes */
fprintf(yyout, "/* Processed by ecpg (%d.%d.%d) */\n/*These two include files are added by the preprocessor */\n#include <ecpgtype.h>\n#include <ecpglib.h>\n", MAJOR_VERSION, MINOR_VERSION, PATCHLEVEL);
/* and parse the source */
yyparse();
fclose(yyin);
if (out_option == 0)
fclose(yyout);
}
free(filename);
}
}
return (0);
}
|
