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1.1 ! root 1: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ ! 2: /* ! 3: * The contents of this file are subject to the Mozilla Public ! 4: * License Version 1.1 (the "License"); you may not use this file ! 5: * except in compliance with the License. You may obtain a copy of ! 6: * the License at http://www.mozilla.org/MPL/ ! 7: * ! 8: * Software distributed under the License is distributed on an "AS ! 9: * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or ! 10: * implied. See the License for the specific language governing ! 11: * rights and limitations under the License. ! 12: * ! 13: * The Original Code is the Netscape Portable Runtime (NSPR). ! 14: * ! 15: * The Initial Developer of the Original Code is Netscape ! 16: * Communications Corporation. Portions created by Netscape are ! 17: * Copyright (C) 1998-2000 Netscape Communications Corporation. All ! 18: * Rights Reserved. ! 19: * ! 20: * Contributor(s): ! 21: * ! 22: * Alternatively, the contents of this file may be used under the ! 23: * terms of the GNU General Public License Version 2 or later (the ! 24: * "GPL"), in which case the provisions of the GPL are applicable ! 25: * instead of those above. If you wish to allow use of your ! 26: * version of this file only under the terms of the GPL and not to ! 27: * allow others to use your version of this file under the MPL, ! 28: * indicate your decision by deleting the provisions above and ! 29: * replace them with the notice and other provisions required by ! 30: * the GPL. If you do not delete the provisions above, a recipient ! 31: * may use your version of this file under either the MPL or the ! 32: * GPL. ! 33: */ ! 34: ! 35: #ifndef prprf_h___ ! 36: #define prprf_h___ ! 37: ! 38: /* ! 39: ** API for PR printf like routines. Supports the following formats ! 40: ** %d - decimal ! 41: ** %u - unsigned decimal ! 42: ** %x - unsigned hex ! 43: ** %X - unsigned uppercase hex ! 44: ** %o - unsigned octal ! 45: ** %hd, %hu, %hx, %hX, %ho - 16-bit versions of above ! 46: ** %ld, %lu, %lx, %lX, %lo - 32-bit versions of above ! 47: ** %lld, %llu, %llx, %llX, %llo - 64 bit versions of above ! 48: ** %s - string ! 49: ** %c - character ! 50: ** %p - pointer (deals with machine dependent pointer size) ! 51: ** %f - float ! 52: ** %g - float ! 53: */ ! 54: #include "prtypes.h" ! 55: #include "prio.h" ! 56: #include <stdio.h> ! 57: #include <stdarg.h> ! 58: ! 59: PR_BEGIN_EXTERN_C ! 60: ! 61: /* ! 62: ** sprintf into a fixed size buffer. Guarantees that a NUL is at the end ! 63: ** of the buffer. Returns the length of the written output, NOT including ! 64: ** the NUL, or (PRUint32)-1 if an error occurs. ! 65: */ ! 66: NSPR_API(PRUint32) PR_snprintf(char *out, PRUint32 outlen, const char *fmt, ...); ! 67: ! 68: /* ! 69: ** sprintf into a PR_MALLOC'd buffer. Return a pointer to the malloc'd ! 70: ** buffer on success, NULL on failure. Call "PR_smprintf_free" to release ! 71: ** the memory returned. ! 72: */ ! 73: NSPR_API(char*) PR_smprintf(const char *fmt, ...); ! 74: ! 75: /* ! 76: ** Free the memory allocated, for the caller, by PR_smprintf ! 77: */ ! 78: NSPR_API(void) PR_smprintf_free(char *mem); ! 79: ! 80: /* ! 81: ** "append" sprintf into a PR_MALLOC'd buffer. "last" is the last value of ! 82: ** the PR_MALLOC'd buffer. sprintf will append data to the end of last, ! 83: ** growing it as necessary using realloc. If last is NULL, PR_sprintf_append ! 84: ** will allocate the initial string. The return value is the new value of ! 85: ** last for subsequent calls, or NULL if there is a malloc failure. ! 86: */ ! 87: NSPR_API(char*) PR_sprintf_append(char *last, const char *fmt, ...); ! 88: ! 89: /* ! 90: ** sprintf into a function. The function "f" is called with a string to ! 91: ** place into the output. "arg" is an opaque pointer used by the stuff ! 92: ** function to hold any state needed to do the storage of the output ! 93: ** data. The return value is a count of the number of characters fed to ! 94: ** the stuff function, or (PRUint32)-1 if an error occurs. ! 95: */ ! 96: typedef PRIntn (*PRStuffFunc)(void *arg, const char *s, PRUint32 slen); ! 97: ! 98: NSPR_API(PRUint32) PR_sxprintf(PRStuffFunc f, void *arg, const char *fmt, ...); ! 99: ! 100: /* ! 101: ** fprintf to a PRFileDesc ! 102: */ ! 103: NSPR_API(PRUint32) PR_fprintf(struct PRFileDesc* fd, const char *fmt, ...); ! 104: ! 105: /* ! 106: ** va_list forms of the above. ! 107: */ ! 108: NSPR_API(PRUint32) PR_vsnprintf(char *out, PRUint32 outlen, const char *fmt, va_list ap); ! 109: NSPR_API(char*) PR_vsmprintf(const char *fmt, va_list ap); ! 110: NSPR_API(char*) PR_vsprintf_append(char *last, const char *fmt, va_list ap); ! 111: NSPR_API(PRUint32) PR_vsxprintf(PRStuffFunc f, void *arg, const char *fmt, va_list ap); ! 112: NSPR_API(PRUint32) PR_vfprintf(struct PRFileDesc* fd, const char *fmt, va_list ap); ! 113: ! 114: /* ! 115: *************************************************************************** ! 116: ** FUNCTION: PR_sscanf ! 117: ** DESCRIPTION: ! 118: ** PR_sscanf() scans the input character string, performs data ! 119: ** conversions, and stores the converted values in the data objects ! 120: ** pointed to by its arguments according to the format control ! 121: ** string. ! 122: ** ! 123: ** PR_sscanf() behaves the same way as the sscanf() function in the ! 124: ** Standard C Library (stdio.h), with the following exceptions: ! 125: ** - PR_sscanf() handles the NSPR integer and floating point types, ! 126: ** such as PRInt16, PRInt32, PRInt64, and PRFloat64, whereas ! 127: ** sscanf() handles the standard C types like short, int, long, ! 128: ** and double. ! 129: ** - PR_sscanf() has no multibyte character support, while sscanf() ! 130: ** does. ! 131: ** INPUTS: ! 132: ** const char *buf ! 133: ** a character string holding the input to scan ! 134: ** const char *fmt ! 135: ** the format control string for the conversions ! 136: ** ... ! 137: ** variable number of arguments, each of them is a pointer to ! 138: ** a data object in which the converted value will be stored ! 139: ** OUTPUTS: none ! 140: ** RETURNS: PRInt32 ! 141: ** The number of values converted and stored. ! 142: ** RESTRICTIONS: ! 143: ** Multibyte characters in 'buf' or 'fmt' are not allowed. ! 144: *************************************************************************** ! 145: */ ! 146: ! 147: NSPR_API(PRInt32) PR_sscanf(const char *buf, const char *fmt, ...); ! 148: ! 149: PR_END_EXTERN_C ! 150: ! 151: #endif /* prprf_h___ */
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