xref: /trunk/main/sal/inc/rtl/strbuf.h (revision cdf0e10c4e3984b49a9502b011690b615761d4a3)
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27 
28 #ifndef _RTL_STRBUF_H_
29 #define _RTL_STRBUF_H_
30 
31 #include <rtl/string.h>
32 
33 #ifdef __cplusplus
34 extern "C" {
35 #endif
36 
37 /** @HTML
38     Allocates a new <code>String</code> that contains characters from
39     the character array argument.
40 
41     The <code>count</code> argument specifies
42     the length of the array. The initial capacity of the string buffer is
43     <code>16</code> plus the length of the string argument.
44 
45     @param  newStr   out parameter, contains the new string. The reference count is 1.
46     @param  value    the initial value of the string.
47     @param  count    the length of value.
48  */
49 void SAL_CALL rtl_stringbuffer_newFromStr_WithLength( rtl_String ** newStr,
50                                                       const sal_Char * value,
51                                                       sal_Int32 count);
52 
53 /**
54     Allocates a new <code>String</code> that contains the same sequence of
55     characters as the string argument.
56 
57     The initial capacity is the larger of:
58     <ul>
59     <li> The <code>bufferLen</code> argument.
60     <li> The <code>length</code> of the string argument.
61     </ul>
62 
63     @param  newStr      out parameter, contains the new string. The reference count is 1.
64     @param  capacity    the initial len of the string buffer.
65     @param  oldStr      the initial value of the string.
66     @return the new capacity of the string buffer
67  */
68 sal_Int32 SAL_CALL rtl_stringbuffer_newFromStringBuffer( rtl_String ** newStr,
69                                                          sal_Int32 capacity,
70                                                          rtl_String * olsStr );
71 
72 /**
73     Ensures that the capacity of the buffer is at least equal to the
74     specified minimum.
75 
76     If the current capacity of this string buffer is less than the
77     argument, then a new internal buffer is allocated with greater
78     capacity. The new capacity is the larger of:
79     <ul>
80     <li>The <code>minimumCapacity</code> argument.
81     <li>Twice the old capacity, plus <code>2</code>.
82     </ul>
83     If the <code>minimumCapacity</code> argument is nonpositive, this
84     method takes no action and simply returns.
85 
86     @param   capacity         in: old capicity, out: new capacity.
87     @param   minimumCapacity   the minimum desired capacity.
88  */
89 void SAL_CALL rtl_stringbuffer_ensureCapacity(  /*inout*/rtl_String ** This,
90                                                 /*inout*/sal_Int32* capacity,
91                                                 sal_Int32 minimumCapacity);
92 
93 
94 /**
95     Inserts the string representation of the <code>char</code> array
96     argument into this string buffer.
97 
98     The characters of the array argument are inserted into the
99     contents of this string buffer at the position indicated by
100     <code>offset</code>. The length of this string buffer increases by
101     the length of the argument.
102 
103     @param  capacity    the capacity of the string buffer
104     @param  offset      the offset.
105     @param  ch          a character array.
106     @param  len         the number of characters to append.
107     @return this string buffer.
108  */
109 void SAL_CALL rtl_stringbuffer_insert( /*inout*/rtl_String ** This,
110                                        /*inout*/sal_Int32 * capacity,
111                                        sal_Int32 offset,
112                                        const sal_Char * str,
113                                        sal_Int32 len);
114 
115 #ifdef __cplusplus
116 }
117 #endif
118 
119 #endif  /* _RTL_STRBUF_H_ */
120