OLD | NEW |
(Empty) | |
| 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 the Netscape Portable Runtime (NSPR). |
| 16 * |
| 17 * The Initial Developer of the Original Code is |
| 18 * Netscape Communications Corporation. |
| 19 * Portions created by the Initial Developer are Copyright (C) 1998-2000 |
| 20 * the Initial Developer. All Rights Reserved. |
| 21 * |
| 22 * Contributor(s): |
| 23 * |
| 24 * Alternatively, the contents of this file may be used under the terms of |
| 25 * either the GNU General Public License Version 2 or later (the "GPL"), or |
| 26 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), |
| 27 * in which case the provisions of the GPL or the LGPL are applicable instead |
| 28 * of those above. If you wish to allow use of your version of this file only |
| 29 * under the terms of either the GPL or the LGPL, and not to allow others to |
| 30 * use your version of this file under the terms of the MPL, indicate your |
| 31 * decision by deleting the provisions above and replace them with the notice |
| 32 * and other provisions required by the GPL or the LGPL. If you do not delete |
| 33 * the provisions above, a recipient may use your version of this file under |
| 34 * the terms of any one of the MPL, the GPL or the LGPL. |
| 35 * |
| 36 * ***** END LICENSE BLOCK ***** */ |
| 37 |
| 38 #ifndef prprf_h___ |
| 39 #define prprf_h___ |
| 40 |
| 41 /* |
| 42 ** API for PR printf like routines. Supports the following formats |
| 43 ** %d - decimal |
| 44 ** %u - unsigned decimal |
| 45 ** %x - unsigned hex |
| 46 ** %X - unsigned uppercase hex |
| 47 ** %o - unsigned octal |
| 48 ** %hd, %hu, %hx, %hX, %ho - 16-bit versions of above |
| 49 ** %ld, %lu, %lx, %lX, %lo - 32-bit versions of above |
| 50 ** %lld, %llu, %llx, %llX, %llo - 64 bit versions of above |
| 51 ** %s - string |
| 52 ** %c - character |
| 53 ** %p - pointer (deals with machine dependent pointer size) |
| 54 ** %f - float |
| 55 ** %g - float |
| 56 */ |
| 57 #include "prtypes.h" |
| 58 #include "prio.h" |
| 59 #include <stdio.h> |
| 60 #include <stdarg.h> |
| 61 |
| 62 PR_BEGIN_EXTERN_C |
| 63 |
| 64 /* |
| 65 ** sprintf into a fixed size buffer. Guarantees that a NUL is at the end |
| 66 ** of the buffer. Returns the length of the written output, NOT including |
| 67 ** the NUL, or (PRUint32)-1 if an error occurs. |
| 68 */ |
| 69 NSPR_API(PRUint32) PR_snprintf(char *out, PRUint32 outlen, const char *fmt, ...)
; |
| 70 |
| 71 /* |
| 72 ** sprintf into a PR_MALLOC'd buffer. Return a pointer to the malloc'd |
| 73 ** buffer on success, NULL on failure. Call "PR_smprintf_free" to release |
| 74 ** the memory returned. |
| 75 */ |
| 76 NSPR_API(char*) PR_smprintf(const char *fmt, ...); |
| 77 |
| 78 /* |
| 79 ** Free the memory allocated, for the caller, by PR_smprintf |
| 80 */ |
| 81 NSPR_API(void) PR_smprintf_free(char *mem); |
| 82 |
| 83 /* |
| 84 ** "append" sprintf into a PR_MALLOC'd buffer. "last" is the last value of |
| 85 ** the PR_MALLOC'd buffer. sprintf will append data to the end of last, |
| 86 ** growing it as necessary using realloc. If last is NULL, PR_sprintf_append |
| 87 ** will allocate the initial string. The return value is the new value of |
| 88 ** last for subsequent calls, or NULL if there is a malloc failure. |
| 89 */ |
| 90 NSPR_API(char*) PR_sprintf_append(char *last, const char *fmt, ...); |
| 91 |
| 92 /* |
| 93 ** sprintf into a function. The function "f" is called with a string to |
| 94 ** place into the output. "arg" is an opaque pointer used by the stuff |
| 95 ** function to hold any state needed to do the storage of the output |
| 96 ** data. The return value is a count of the number of characters fed to |
| 97 ** the stuff function, or (PRUint32)-1 if an error occurs. |
| 98 */ |
| 99 typedef PRIntn (*PRStuffFunc)(void *arg, const char *s, PRUint32 slen); |
| 100 |
| 101 NSPR_API(PRUint32) PR_sxprintf(PRStuffFunc f, void *arg, const char *fmt, ...); |
| 102 |
| 103 /* |
| 104 ** fprintf to a PRFileDesc |
| 105 */ |
| 106 NSPR_API(PRUint32) PR_fprintf(struct PRFileDesc* fd, const char *fmt, ...); |
| 107 |
| 108 /* |
| 109 ** va_list forms of the above. |
| 110 */ |
| 111 NSPR_API(PRUint32) PR_vsnprintf(char *out, PRUint32 outlen, const char *fmt, va_
list ap); |
| 112 NSPR_API(char*) PR_vsmprintf(const char *fmt, va_list ap); |
| 113 NSPR_API(char*) PR_vsprintf_append(char *last, const char *fmt, va_list ap); |
| 114 NSPR_API(PRUint32) PR_vsxprintf(PRStuffFunc f, void *arg, const char *fmt, va_li
st ap); |
| 115 NSPR_API(PRUint32) PR_vfprintf(struct PRFileDesc* fd, const char *fmt, va_list a
p); |
| 116 |
| 117 /* |
| 118 *************************************************************************** |
| 119 ** FUNCTION: PR_sscanf |
| 120 ** DESCRIPTION: |
| 121 ** PR_sscanf() scans the input character string, performs data |
| 122 ** conversions, and stores the converted values in the data objects |
| 123 ** pointed to by its arguments according to the format control |
| 124 ** string. |
| 125 ** |
| 126 ** PR_sscanf() behaves the same way as the sscanf() function in the |
| 127 ** Standard C Library (stdio.h), with the following exceptions: |
| 128 ** - PR_sscanf() handles the NSPR integer and floating point types, |
| 129 ** such as PRInt16, PRInt32, PRInt64, and PRFloat64, whereas |
| 130 ** sscanf() handles the standard C types like short, int, long, |
| 131 ** and double. |
| 132 ** - PR_sscanf() has no multibyte character support, while sscanf() |
| 133 ** does. |
| 134 ** INPUTS: |
| 135 ** const char *buf |
| 136 ** a character string holding the input to scan |
| 137 ** const char *fmt |
| 138 ** the format control string for the conversions |
| 139 ** ... |
| 140 ** variable number of arguments, each of them is a pointer to |
| 141 ** a data object in which the converted value will be stored |
| 142 ** OUTPUTS: none |
| 143 ** RETURNS: PRInt32 |
| 144 ** The number of values converted and stored. |
| 145 ** RESTRICTIONS: |
| 146 ** Multibyte characters in 'buf' or 'fmt' are not allowed. |
| 147 *************************************************************************** |
| 148 */ |
| 149 |
| 150 NSPR_API(PRInt32) PR_sscanf(const char *buf, const char *fmt, ...); |
| 151 |
| 152 PR_END_EXTERN_C |
| 153 |
| 154 #endif /* prprf_h___ */ |
OLD | NEW |