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1.1 root 1: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2: /* ***** BEGIN LICENSE BLOCK *****
3: * Version: MPL 1.1/GPL 2.0/LGPL 2.1
4: *
5: * The contents of this file are subject to the Mozilla Public License Version
6: * 1.1 (the "License"); you may not use this file except in compliance with
7: * the License. You may obtain a copy of the License at
8: * http://www.mozilla.org/MPL/
9: *
10: * Software distributed under the License is distributed on an "AS IS" basis,
11: * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12: * for the specific language governing rights and limitations under the
13: * License.
14: *
15: * The Original Code is Mozilla Communicator client code, released
16: * March 31, 1998.
17: *
18: * The Initial Developer of the Original Code is
19: * Netscape Communications Corporation.
20: * Portions created by the Initial Developer are Copyright (C) 1998
21: * the Initial Developer. All Rights Reserved.
22: *
23: * Contributor(s):
24: *
25: * Alternatively, the contents of this file may be used under the terms of
26: * either of the GNU General Public License Version 2 or later (the "GPL"),
27: * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
28: * in which case the provisions of the GPL or the LGPL are applicable instead
29: * of those above. If you wish to allow use of your version of this file only
30: * under the terms of either the GPL or the LGPL, and not to allow others to
31: * use your version of this file under the terms of the MPL, indicate your
32: * decision by deleting the provisions above and replace them with the notice
33: * and other provisions required by the GPL or the LGPL. If you do not delete
34: * the provisions above, a recipient may use your version of this file under
35: * the terms of any one of the MPL, the GPL or the LGPL.
36: *
37: * ***** END LICENSE BLOCK ***** */
38:
39: #ifndef jsprf_h___
40: #define jsprf_h___
41:
42: /*
43: ** API for PR printf like routines. Supports the following formats
1.1.1.2 ! root 44: ** %d - decimal
! 45: ** %u - unsigned decimal
! 46: ** %x - unsigned hex
! 47: ** %X - unsigned uppercase hex
! 48: ** %o - unsigned octal
! 49: ** %hd, %hu, %hx, %hX, %ho - 16-bit versions of above
! 50: ** %ld, %lu, %lx, %lX, %lo - 32-bit versions of above
! 51: ** %lld, %llu, %llx, %llX, %llo - 64 bit versions of above
! 52: ** %s - string
! 53: ** %hs - 16-bit version of above (only available if compiled with JS_C_STRINGS_ARE_UTF8)
! 54: ** %c - character
! 55: ** %hc - 16-bit version of above (only available if compiled with JS_C_STRINGS_ARE_UTF8)
! 56: ** %p - pointer (deals with machine dependent pointer size)
! 57: ** %f - float
! 58: ** %g - float
1.1 root 59: */
60: #include "jstypes.h"
61: #include <stdio.h>
62: #include <stdarg.h>
63:
64: JS_BEGIN_EXTERN_C
65:
66: /*
67: ** sprintf into a fixed size buffer. Guarantees that a NUL is at the end
68: ** of the buffer. Returns the length of the written output, NOT including
69: ** the NUL, or (JSUint32)-1 if an error occurs.
70: */
71: extern JS_PUBLIC_API(JSUint32) JS_snprintf(char *out, JSUint32 outlen, const char *fmt, ...);
72:
73: /*
74: ** sprintf into a malloc'd buffer. Return a pointer to the malloc'd
75: ** buffer on success, NULL on failure. Call "JS_smprintf_free" to release
76: ** the memory returned.
77: */
78: extern JS_PUBLIC_API(char*) JS_smprintf(const char *fmt, ...);
79:
80: /*
81: ** Free the memory allocated, for the caller, by JS_smprintf
82: */
83: extern JS_PUBLIC_API(void) JS_smprintf_free(char *mem);
84:
85: /*
86: ** "append" sprintf into a malloc'd buffer. "last" is the last value of
87: ** the malloc'd buffer. sprintf will append data to the end of last,
88: ** growing it as necessary using realloc. If last is NULL, JS_sprintf_append
89: ** will allocate the initial string. The return value is the new value of
90: ** last for subsequent calls, or NULL if there is a malloc failure.
91: */
92: extern JS_PUBLIC_API(char*) JS_sprintf_append(char *last, const char *fmt, ...);
93:
94: /*
95: ** sprintf into a function. The function "f" is called with a string to
96: ** place into the output. "arg" is an opaque pointer used by the stuff
97: ** function to hold any state needed to do the storage of the output
98: ** data. The return value is a count of the number of characters fed to
99: ** the stuff function, or (JSUint32)-1 if an error occurs.
100: */
101: typedef JSIntn (*JSStuffFunc)(void *arg, const char *s, JSUint32 slen);
102:
103: extern JS_PUBLIC_API(JSUint32) JS_sxprintf(JSStuffFunc f, void *arg, const char *fmt, ...);
104:
105: /*
106: ** va_list forms of the above.
107: */
108: extern JS_PUBLIC_API(JSUint32) JS_vsnprintf(char *out, JSUint32 outlen, const char *fmt, va_list ap);
109: extern JS_PUBLIC_API(char*) JS_vsmprintf(const char *fmt, va_list ap);
110: extern JS_PUBLIC_API(char*) JS_vsprintf_append(char *last, const char *fmt, va_list ap);
111: extern JS_PUBLIC_API(JSUint32) JS_vsxprintf(JSStuffFunc f, void *arg, const char *fmt, va_list ap);
112:
113: /*
114: ***************************************************************************
115: ** FUNCTION: JS_sscanf
116: ** DESCRIPTION:
117: ** JS_sscanf() scans the input character string, performs data
118: ** conversions, and stores the converted values in the data objects
119: ** pointed to by its arguments according to the format control
120: ** string.
121: **
122: ** JS_sscanf() behaves the same way as the sscanf() function in the
123: ** Standard C Library (stdio.h), with the following exceptions:
124: ** - JS_sscanf() handles the NSPR integer and floating point types,
125: ** such as JSInt16, JSInt32, JSInt64, and JSFloat64, whereas
126: ** sscanf() handles the standard C types like short, int, long,
127: ** and double.
128: ** - JS_sscanf() has no multibyte character support, while sscanf()
129: ** does.
130: ** INPUTS:
131: ** const char *buf
132: ** a character string holding the input to scan
133: ** const char *fmt
134: ** the format control string for the conversions
135: ** ...
136: ** variable number of arguments, each of them is a pointer to
137: ** a data object in which the converted value will be stored
138: ** OUTPUTS: none
139: ** RETURNS: JSInt32
140: ** The number of values converted and stored.
141: ** RESTRICTIONS:
142: ** Multibyte characters in 'buf' or 'fmt' are not allowed.
143: ***************************************************************************
144: */
145:
146: extern JS_PUBLIC_API(JSInt32) JS_sscanf(const char *buf, const char *fmt, ...);
147:
148: JS_END_EXTERN_C
149:
150: #endif /* jsprf_h___ */
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