projects / apple / libc.git / blame
| Commit | Line | Data |
|---|---|---|
| 6465356a A |
1 | /*- |
| 2 | * Copyright (c) 2005 Poul-Henning Kamp | |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * Redistribution and use in source and binary forms, with or without | |
| 6 | * modification, are permitted provided that the following conditions | |
| 7 | * are met: | |
| 8 | * 1. Redistributions of source code must retain the above copyright | |
| 9 | * notice, this list of conditions and the following disclaimer. | |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 | * notice, this list of conditions and the following disclaimer in the | |
| 12 | * documentation and/or other materials provided with the distribution. | |
| 13 | * | |
| 14 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |
| 15 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 16 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 17 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
| 18 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 19 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 20 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 21 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 22 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 23 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 24 | * SUCH DAMAGE. | |
| 25 | * | |
| 26 | * $FreeBSD: src/lib/libc/stdio/xprintf_quote.c,v 1.2 2006/03/02 08:53:45 phk Exp $ | |
| 27 | */ | |
| 28 | ||
| 29 | #include <namespace.h> | |
| 30 | #include <stdio.h> | |
| 31 | #include <string.h> | |
| 32 | #include <stdlib.h> | |
| 33 | #include <ctype.h> | |
| 34 | #include <wchar.h> | |
| 35 | #include <vis.h> | |
| 36 | #include <assert.h> | |
| 37 | #include <sys/time.h> | |
| 38 | #include "printf.h" | |
| 39 | #include "xprintf_private.h" | |
| 40 | ||
| 41 | __private_extern__ int | |
| 42 | __printf_arginfo_quote(const struct printf_info *pi __unused, size_t n, int *argt) | |
| 43 | { | |
| 44 | ||
| 45 | assert(n >= 1); | |
| 46 | argt[0] = PA_POINTER; | |
| 47 | return (1); | |
| 48 | } | |
| 49 | ||
| 50 | __private_extern__ int | |
| 51 | __printf_render_quote(struct __printf_io *io, const struct printf_info *pi __unused, const void *const *arg) | |
| 52 | { | |
| 53 | const char *str, *p, *t, *o; | |
| 54 | char r[5]; | |
| 55 | int i, ret; | |
| 56 | ||
| 57 | str = *((const char *const *)arg[0]); | |
| 58 | if (str == NULL) | |
| 59 | return (__printf_out(io, pi, "\"(null)\"", 8)); | |
| 60 | if (*str == '\0') | |
| 61 | return (__printf_out(io, pi, "\"\"", 2)); | |
| 62 | ||
| 63 | for (i = 0, p = str; *p; p++) | |
| 64 | if (isspace(*p) || *p == '\\' || *p == '"') | |
| 65 | i++; | |
| 66 | if (!i) | |
| 67 | return (__printf_out(io, pi, str, strlen(str))); | |
| 68 | ||
| 69 | ret = __printf_out(io, pi, "\"", 1); | |
| 70 | for (t = p = str; *p; p++) { | |
| 71 | o = NULL; | |
| 72 | if (*p == '\\') | |
| 73 | o = "\\\\"; | |
| 74 | else if (*p == '\n') | |
| 75 | o = "\\n"; | |
| 76 | else if (*p == '\r') | |
| 77 | o = "\\r"; | |
| 78 | else if (*p == '\t') | |
| 79 | o = "\\t"; | |
| 80 | else if (*p == ' ') | |
| 81 | o = " "; | |
| 82 | else if (*p == '"') | |
| 83 | o = "\\\""; | |
| 84 | else if (isspace(*p)) { | |
| 85 | sprintf(r, "\\%03o", *p); | |
| 86 | o = r; | |
| 87 | } else | |
| 88 | continue; | |
| 89 | if (p != t) | |
| 90 | ret += __printf_out(io, pi, t, p - t); | |
| 91 | ret += __printf_out(io, pi, o, strlen(o)); | |
| 92 | t = p + 1; | |
| 93 | } | |
| 94 | if (p != t) | |
| 95 | ret += __printf_out(io, pi, t, p - t); | |
| 96 | ret += __printf_out(io, pi, "\"", 1); | |
| 97 | __printf_flush(io); | |
| 98 | return(ret); | |
| 99 | } |