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1 /* Copyright (c) 1998-2003 Thai Open Source Software Center Ltd
2    See the file COPYING for copying permission.
3 
4    chardata.c
5 */
6 
7 #ifdef HAVE_EXPAT_CONFIG_H
8 #include <expat_config.h>
9 #endif
10 #include "minicheck.h"
11 
12 #include <assert.h>
13 #include <stdio.h>
14 #include <string.h>
15 
16 #include "chardata.h"
17 
18 
19 static int
xmlstrlen(const XML_Char * s)20 xmlstrlen(const XML_Char *s)
21 {
22     int len = 0;
23     assert(s != NULL);
24     while (s[len] != 0)
25         ++len;
26     return len;
27 }
28 
29 
30 void
CharData_Init(CharData * storage)31 CharData_Init(CharData *storage)
32 {
33     assert(storage != NULL);
34     storage->count = -1;
35 }
36 
37 void
CharData_AppendString(CharData * storage,const char * s)38 CharData_AppendString(CharData *storage, const char *s)
39 {
40     int maxchars = sizeof(storage->data) / sizeof(storage->data[0]);
41     int len;
42 
43     assert(s != NULL);
44     len = strlen(s);
45     if (storage->count < 0)
46         storage->count = 0;
47     if ((len + storage->count) > maxchars) {
48         len = (maxchars - storage->count);
49     }
50     if (len + storage->count < (int)sizeof(storage->data)) {
51         memcpy(storage->data + storage->count, s, len);
52         storage->count += len;
53     }
54 }
55 
56 void
CharData_AppendXMLChars(CharData * storage,const XML_Char * s,int len)57 CharData_AppendXMLChars(CharData *storage, const XML_Char *s, int len)
58 {
59     int maxchars;
60 
61     assert(storage != NULL);
62     assert(s != NULL);
63     maxchars = sizeof(storage->data) / sizeof(storage->data[0]);
64     if (storage->count < 0)
65         storage->count = 0;
66     if (len < 0)
67         len = xmlstrlen(s);
68     if ((len + storage->count) > maxchars) {
69         len = (maxchars - storage->count);
70     }
71     if (len + storage->count < (int)sizeof(storage->data)) {
72         memcpy(storage->data + storage->count, s,
73                len * sizeof(storage->data[0]));
74         storage->count += len;
75     }
76 }
77 
78 int
CharData_CheckString(CharData * storage,const char * expected)79 CharData_CheckString(CharData *storage, const char *expected)
80 {
81     char buffer[1280];
82     int len;
83     int count;
84 
85     assert(storage != NULL);
86     assert(expected != NULL);
87     count = (storage->count < 0) ? 0 : storage->count;
88     len = strlen(expected);
89     if (len != count) {
90         if (sizeof(XML_Char) == 1)
91             sprintf(buffer, "wrong number of data characters:"
92                     " got %d, expected %d:\n%s", count, len, storage->data);
93         else
94             sprintf(buffer,
95                     "wrong number of data characters: got %d, expected %d",
96                     count, len);
97         fail(buffer);
98         return 0;
99     }
100     if (memcmp(expected, storage->data, len) != 0) {
101         fail("got bad data bytes");
102         return 0;
103     }
104     return 1;
105 }
106 
107 int
CharData_CheckXMLChars(CharData * storage,const XML_Char * expected)108 CharData_CheckXMLChars(CharData *storage, const XML_Char *expected)
109 {
110     char buffer[1024];
111     int len = xmlstrlen(expected);
112     int count;
113 
114     assert(storage != NULL);
115     count = (storage->count < 0) ? 0 : storage->count;
116     if (len != count) {
117         sprintf(buffer, "wrong number of data characters: got %d, expected %d",
118                 count, len);
119         fail(buffer);
120         return 0;
121     }
122     if (memcmp(expected, storage->data, len * sizeof(storage->data[0])) != 0) {
123         fail("got bad data bytes");
124         return 0;
125     }
126     return 1;
127 }
128