Wed, 04 Dec 2024 20:36:16 +0100
semi functional grid container (Motif)
174 | 1 | /* |
2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. | |
3 | * | |
4 | * Copyright 2021 Mike Becker, Olaf Wintermann All rights reserved. | |
5 | * | |
6 | * Redistribution and use in source and binary forms, with or without | |
7 | * modification, are permitted provided that the following conditions are met: | |
8 | * | |
9 | * 1. Redistributions of source code must retain the above copyright | |
10 | * notice, this list of conditions and the following disclaimer. | |
11 | * | |
12 | * 2. Redistributions in binary form must reproduce the above copyright | |
13 | * notice, this list of conditions and the following disclaimer in the | |
14 | * documentation and/or other materials provided with the distribution. | |
15 | * | |
16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE | |
20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
26 | * POSSIBILITY OF SUCH DAMAGE. | |
27 | */ | |
28 | ||
29 | #include "cx/printf.h" | |
30 | ||
31 | #include <stdio.h> | |
32 | #include <string.h> | |
33 | ||
34 | #ifndef CX_PRINTF_SBO_SIZE | |
35 | #define CX_PRINTF_SBO_SIZE 512 | |
36 | #endif | |
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37 | unsigned const cx_printf_sbo_size = CX_PRINTF_SBO_SIZE; |
174 | 38 | |
39 | int cx_fprintf( | |
40 | void *stream, | |
41 | cx_write_func wfc, | |
324 | 42 | const char *fmt, |
174 | 43 | ... |
44 | ) { | |
45 | int ret; | |
46 | va_list ap; | |
47 | va_start(ap, fmt); | |
48 | ret = cx_vfprintf(stream, wfc, fmt, ap); | |
49 | va_end(ap); | |
50 | return ret; | |
51 | } | |
52 | ||
53 | int cx_vfprintf( | |
54 | void *stream, | |
55 | cx_write_func wfc, | |
324 | 56 | const char *fmt, |
174 | 57 | va_list ap |
58 | ) { | |
59 | char buf[CX_PRINTF_SBO_SIZE]; | |
60 | va_list ap2; | |
61 | va_copy(ap2, ap); | |
62 | int ret = vsnprintf(buf, CX_PRINTF_SBO_SIZE, fmt, ap); | |
63 | if (ret < 0) { | |
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64 | va_end(ap2); |
174 | 65 | return ret; |
66 | } else if (ret < CX_PRINTF_SBO_SIZE) { | |
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67 | va_end(ap2); |
174 | 68 | return (int) wfc(buf, 1, ret, stream); |
69 | } else { | |
70 | int len = ret + 1; | |
71 | char *newbuf = malloc(len); | |
72 | if (!newbuf) { | |
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73 | va_end(ap2); |
174 | 74 | return -1; |
75 | } | |
76 | ||
77 | ret = vsnprintf(newbuf, len, fmt, ap2); | |
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78 | va_end(ap2); |
174 | 79 | if (ret > 0) { |
80 | ret = (int) wfc(newbuf, 1, ret, stream); | |
81 | } | |
82 | free(newbuf); | |
83 | } | |
84 | return ret; | |
85 | } | |
86 | ||
87 | cxmutstr cx_asprintf_a( | |
324 | 88 | const CxAllocator *allocator, |
89 | const char *fmt, | |
174 | 90 | ... |
91 | ) { | |
92 | va_list ap; | |
93 | va_start(ap, fmt); | |
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94 | cxmutstr ret = cx_vasprintf_a(allocator, fmt, ap); |
174 | 95 | va_end(ap); |
96 | return ret; | |
97 | } | |
98 | ||
99 | cxmutstr cx_vasprintf_a( | |
324 | 100 | const CxAllocator *a, |
101 | const char *fmt, | |
174 | 102 | va_list ap |
103 | ) { | |
104 | cxmutstr s; | |
105 | s.ptr = NULL; | |
106 | s.length = 0; | |
107 | char buf[CX_PRINTF_SBO_SIZE]; | |
108 | va_list ap2; | |
109 | va_copy(ap2, ap); | |
110 | int ret = vsnprintf(buf, CX_PRINTF_SBO_SIZE, fmt, ap); | |
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111 | if (ret >= 0 && ret < CX_PRINTF_SBO_SIZE) { |
174 | 112 | s.ptr = cxMalloc(a, ret + 1); |
113 | if (s.ptr) { | |
114 | s.length = (size_t) ret; | |
115 | memcpy(s.ptr, buf, ret); | |
116 | s.ptr[s.length] = '\0'; | |
117 | } | |
118 | } else { | |
119 | int len = ret + 1; | |
120 | s.ptr = cxMalloc(a, len); | |
121 | if (s.ptr) { | |
122 | ret = vsnprintf(s.ptr, len, fmt, ap2); | |
123 | if (ret < 0) { | |
124 | free(s.ptr); | |
125 | s.ptr = NULL; | |
126 | } else { | |
127 | s.length = (size_t) ret; | |
128 | } | |
129 | } | |
130 | } | |
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131 | va_end(ap2); |
174 | 132 | return s; |
133 | } | |
134 | ||
324 | 135 | int cx_sprintf_a(CxAllocator *alloc, char **str, size_t *len, const char *fmt, ... ) { |
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136 | va_list ap; |
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137 | va_start(ap, fmt); |
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138 | int ret = cx_vsprintf_a(alloc, str, len, fmt, ap); |
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139 | va_end(ap); |
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140 | return ret; |
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141 | } |
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142 | |
324 | 143 | int cx_vsprintf_a(CxAllocator *alloc, char **str, size_t *len, const char *fmt, va_list ap) { |
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144 | va_list ap2; |
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145 | va_copy(ap2, ap); |
324 | 146 | int ret = vsnprintf(*str, *len, fmt, ap); |
147 | if ((unsigned) ret >= *len) { | |
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148 | unsigned newlen = ret + 1; |
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149 | char *ptr = cxRealloc(alloc, *str, newlen); |
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150 | if (ptr) { |
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151 | int newret = vsnprintf(ptr, newlen, fmt, ap2); |
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152 | if (newret < 0) { |
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153 | cxFree(alloc, ptr); |
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154 | } else { |
324 | 155 | *len = newlen; |
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156 | *str = ptr; |
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157 | ret = newret; |
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158 | } |
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159 | } |
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160 | } |
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161 | va_end(ap2); |
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162 | return ret; |
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163 | } |
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164 | |
324 | 165 | int cx_sprintf_sa(CxAllocator *alloc, char *buf, size_t *len, char **str, const char *fmt, ... ) { |
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166 | va_list ap; |
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167 | va_start(ap, fmt); |
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168 | int ret = cx_vsprintf_sa(alloc, buf, len, str, fmt, ap); |
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169 | va_end(ap); |
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170 | return ret; |
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171 | } |
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172 | |
324 | 173 | int cx_vsprintf_sa(CxAllocator *alloc, char *buf, size_t *len, char **str, const char *fmt, va_list ap) { |
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174 | va_list ap2; |
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175 | va_copy(ap2, ap); |
324 | 176 | int ret = vsnprintf(buf, *len, fmt, ap); |
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177 | *str = buf; |
324 | 178 | if ((unsigned) ret >= *len) { |
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179 | unsigned newlen = ret + 1; |
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180 | char *ptr = cxMalloc(alloc, newlen); |
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181 | if (ptr) { |
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182 | int newret = vsnprintf(ptr, newlen, fmt, ap2); |
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183 | if (newret < 0) { |
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184 | cxFree(alloc, ptr); |
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185 | } else { |
324 | 186 | *len = newlen; |
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187 | *str = ptr; |
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188 | ret = newret; |
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189 | } |
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190 | } |
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191 | } |
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192 | va_end(ap2); |
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193 | return ret; |
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194 | } |