1 /**************************************************************
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 *************************************************************/
21
22
23
24 #include <osl/interlck.h>
25
26 #ifndef _RTL_STRING_HXX_
27 #include <rtl/strbuf.hxx>
28 #endif
29 #include <rtl/memory.h>
30
31 /*
32 #include <rtl/alloc.h>
33 */
34
35
36
37 /*************************************************************************
38 * rtl_stringbuffer_newFromStr_WithLength
39 */
rtl_stringbuffer_newFromStr_WithLength(rtl_String ** newStr,const sal_Char * value,sal_Int32 count)40 void SAL_CALL rtl_stringbuffer_newFromStr_WithLength( rtl_String ** newStr,
41 const sal_Char * value,
42 sal_Int32 count )
43 {
44 if (!value)
45 {
46 rtl_string_new_WithLength( newStr, 16 );
47 return;
48 }
49
50 rtl_string_new_WithLength( newStr, count + 16 );
51 (*newStr)->length = count;
52 rtl_copyMemory( (*newStr)->buffer, value, count );
53 return;
54 }
55
56 /*************************************************************************
57 * rtl_stringbuffer_newFromStringBuffer
58 */
rtl_stringbuffer_newFromStringBuffer(rtl_String ** newStr,sal_Int32 capacity,rtl_String * oldStr)59 sal_Int32 SAL_CALL rtl_stringbuffer_newFromStringBuffer( rtl_String ** newStr,
60 sal_Int32 capacity,
61 rtl_String * oldStr )
62 {
63 sal_Int32 newCapacity = capacity;
64
65 if (newCapacity < oldStr->length)
66 newCapacity = oldStr->length;
67
68 rtl_string_new_WithLength( newStr, newCapacity );
69 if (oldStr->length > 0) {
70 (*newStr)->length = oldStr->length;
71 rtl_copyMemory( (*newStr)->buffer, oldStr->buffer, oldStr->length );
72 }
73 return newCapacity;
74 }
75
76 /*************************************************************************
77 * rtl_stringbuffer_ensureCapacity
78 */
rtl_stringbuffer_ensureCapacity(rtl_String ** This,sal_Int32 * capacity,sal_Int32 minimumCapacity)79 void SAL_CALL rtl_stringbuffer_ensureCapacity
80 (rtl_String ** This, sal_Int32* capacity, sal_Int32 minimumCapacity)
81 {
82 if (minimumCapacity > *capacity)
83 {
84 rtl_String * pTmp = *This;
85 rtl_String * pNew = NULL;
86 *capacity = ((*This)->length + 1) * 2;
87 if (minimumCapacity > *capacity)
88 /* still lower, set to the minimum capacity */
89 *capacity = minimumCapacity;
90
91 rtl_string_new_WithLength(&pNew, *capacity);
92 pNew->length = (*This)->length;
93 *This = pNew;
94
95 rtl_copyMemory( (*This)->buffer, pTmp->buffer, pTmp->length );
96 rtl_string_release( pTmp );
97 }
98 }
99
100 /*************************************************************************
101 * rtl_stringbuffer_insert
102 */
rtl_stringbuffer_insert(rtl_String ** This,sal_Int32 * capacity,sal_Int32 offset,const sal_Char * str,sal_Int32 len)103 void SAL_CALL rtl_stringbuffer_insert( rtl_String ** This,
104 sal_Int32 * capacity,
105 sal_Int32 offset,
106 const sal_Char * str,
107 sal_Int32 len )
108 {
109 sal_Int32 nOldLen;
110 sal_Char * pBuf;
111 sal_Int32 n;
112 if( len != 0 )
113 {
114 if (*capacity < (*This)->length + len)
115 rtl_stringbuffer_ensureCapacity( This, capacity, (*This)->length + len );
116
117 /*
118 if( len == 1 )
119 This->buffer
120 */
121 nOldLen = (*This)->length;
122 pBuf = (*This)->buffer;
123
124 /* copy the tail */
125 n = (nOldLen - offset);
126 if( n == 1 )
127 /* optimized for 1 character */
128 pBuf[offset + len] = pBuf[offset];
129 else if( n > 1 )
130 rtl_moveMemory( pBuf + offset + len, pBuf + offset, n * sizeof(sal_Char) );
131
132 /* insert the new characters */
133 n = len;
134 if( len == 1 )
135 /* optimized for 1 character */
136 pBuf[offset] = *str;
137 else if( n > 1 )
138 rtl_copyMemory( pBuf + offset, str, len * sizeof(sal_Char) );
139 (*This)->length = nOldLen + len;
140 pBuf[ nOldLen + len ] = 0;
141 }
142 }
143
144