epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2006 The Android Open Source Project |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 8 | |
herb | b906daf | 2015-09-29 09:37:59 -0700 | [diff] [blame] | 9 | #include "SkAtomics.h" |
mtklein | 1b24933 | 2015-07-07 12:21:21 -0700 | [diff] [blame] | 10 | #include "SkString.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 11 | #include "SkUtils.h" |
| 12 | #include <stdarg.h> |
reed@google.com | fa06e52 | 2011-02-28 21:29:58 +0000 | [diff] [blame] | 13 | #include <stdio.h> |
| 14 | |
| 15 | // number of bytes (on the stack) to receive the printf result |
bsalomon@google.com | 77cf460 | 2013-04-22 21:05:48 +0000 | [diff] [blame] | 16 | static const size_t kBufferSize = 1024; |
reed@google.com | fa06e52 | 2011-02-28 21:29:58 +0000 | [diff] [blame] | 17 | |
| 18 | #ifdef SK_BUILD_FOR_WIN |
tomhudson@google.com | 47e0a09 | 2011-07-08 17:49:22 +0000 | [diff] [blame] | 19 | #define VSNPRINTF(buffer, size, format, args) \ |
| 20 | _vsnprintf_s(buffer, size, _TRUNCATE, format, args) |
reed@google.com | fa06e52 | 2011-02-28 21:29:58 +0000 | [diff] [blame] | 21 | #define SNPRINTF _snprintf |
| 22 | #else |
| 23 | #define VSNPRINTF vsnprintf |
| 24 | #define SNPRINTF snprintf |
| 25 | #endif |
| 26 | |
joshualitt | 976386b | 2014-10-23 18:23:32 -0700 | [diff] [blame] | 27 | #define ARGS_TO_BUFFER(format, buffer, size, written) \ |
| 28 | do { \ |
| 29 | va_list args; \ |
| 30 | va_start(args, format); \ |
| 31 | written = VSNPRINTF(buffer, size, format, args); \ |
| 32 | SkASSERT(written >= 0 && written < SkToInt(size)); \ |
| 33 | va_end(args); \ |
reed@google.com | fa06e52 | 2011-02-28 21:29:58 +0000 | [diff] [blame] | 34 | } while (0) |
| 35 | |
halcanary | d51bdae | 2016-04-25 09:25:35 -0700 | [diff] [blame] | 36 | #ifdef SK_BUILD_FOR_WIN |
| 37 | #define V_SKSTRING_PRINTF(output, format) \ |
| 38 | do { \ |
| 39 | va_list args; \ |
| 40 | va_start(args, format); \ |
| 41 | char buffer[kBufferSize]; \ |
| 42 | int length = _vsnprintf_s(buffer, sizeof(buffer), \ |
| 43 | _TRUNCATE, format, args); \ |
| 44 | va_end(args); \ |
| 45 | if (length >= 0 && length < (int)sizeof(buffer)) { \ |
| 46 | output.set(buffer, length); \ |
| 47 | break; \ |
| 48 | } \ |
| 49 | va_start(args, format); \ |
| 50 | length = _vscprintf(format, args); \ |
| 51 | va_end(args); \ |
| 52 | SkAutoTMalloc<char> autoTMalloc((size_t)length + 1); \ |
| 53 | va_start(args, format); \ |
| 54 | SkDEBUGCODE(int check = ) _vsnprintf_s(autoTMalloc.get(), \ |
| 55 | length + 1, _TRUNCATE, \ |
| 56 | format, args); \ |
| 57 | va_end(args); \ |
| 58 | SkASSERT(check == length); \ |
| 59 | output.set(autoTMalloc.get(), length); \ |
| 60 | SkASSERT(output[length] == '\0'); \ |
| 61 | } while (false) |
| 62 | #else |
| 63 | #define V_SKSTRING_PRINTF(output, format) \ |
| 64 | do { \ |
| 65 | va_list args; \ |
| 66 | va_start(args, format); \ |
| 67 | char buffer[kBufferSize]; \ |
| 68 | int length = vsnprintf(buffer, sizeof(buffer), format, args); \ |
| 69 | va_end(args); \ |
| 70 | if (length < 0) { \ |
| 71 | break; \ |
| 72 | } \ |
| 73 | if (length < (int)sizeof(buffer)) { \ |
| 74 | output.set(buffer, length); \ |
| 75 | break; \ |
| 76 | } \ |
| 77 | SkAutoTMalloc<char> autoTMalloc((size_t)length + 1); \ |
| 78 | va_start(args, format); \ |
| 79 | SkDEBUGCODE(int check = ) vsnprintf(autoTMalloc.get(), \ |
| 80 | length + 1, format, args); \ |
| 81 | va_end(args); \ |
| 82 | SkASSERT(check == length); \ |
| 83 | output.set(autoTMalloc.get(), length); \ |
| 84 | SkASSERT(output[length] == '\0'); \ |
| 85 | } while (false) |
| 86 | #endif |
| 87 | |
reed@google.com | fa06e52 | 2011-02-28 21:29:58 +0000 | [diff] [blame] | 88 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 89 | |
epoger@google.com | e8ebeb1 | 2012-10-29 16:42:11 +0000 | [diff] [blame] | 90 | bool SkStrEndsWith(const char string[], const char suffixStr[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 91 | SkASSERT(string); |
epoger@google.com | e8ebeb1 | 2012-10-29 16:42:11 +0000 | [diff] [blame] | 92 | SkASSERT(suffixStr); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 93 | size_t strLen = strlen(string); |
epoger@google.com | e8ebeb1 | 2012-10-29 16:42:11 +0000 | [diff] [blame] | 94 | size_t suffixLen = strlen(suffixStr); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 95 | return strLen >= suffixLen && |
epoger@google.com | e8ebeb1 | 2012-10-29 16:42:11 +0000 | [diff] [blame] | 96 | !strncmp(string + strLen - suffixLen, suffixStr, suffixLen); |
| 97 | } |
| 98 | |
| 99 | bool SkStrEndsWith(const char string[], const char suffixChar) { |
| 100 | SkASSERT(string); |
| 101 | size_t strLen = strlen(string); |
| 102 | if (0 == strLen) { |
| 103 | return false; |
| 104 | } else { |
| 105 | return (suffixChar == string[strLen-1]); |
| 106 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 107 | } |
| 108 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 109 | int SkStrStartsWithOneOf(const char string[], const char prefixes[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 110 | int index = 0; |
| 111 | do { |
| 112 | const char* limit = strchr(prefixes, '\0'); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 113 | if (!strncmp(string, prefixes, limit - prefixes)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 114 | return index; |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 115 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 116 | prefixes = limit + 1; |
| 117 | index++; |
| 118 | } while (prefixes[0]); |
| 119 | return -1; |
| 120 | } |
| 121 | |
epoger@google.com | d88a3d8 | 2013-06-19 18:27:20 +0000 | [diff] [blame] | 122 | char* SkStrAppendU32(char string[], uint32_t dec) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 123 | SkDEBUGCODE(char* start = string;) |
| 124 | |
epoger@google.com | d88a3d8 | 2013-06-19 18:27:20 +0000 | [diff] [blame] | 125 | char buffer[SkStrAppendU32_MaxSize]; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 126 | char* p = buffer + sizeof(buffer); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 127 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 128 | do { |
| 129 | *--p = SkToU8('0' + dec % 10); |
| 130 | dec /= 10; |
| 131 | } while (dec != 0); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 132 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 133 | SkASSERT(p >= buffer); |
| 134 | char* stop = buffer + sizeof(buffer); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 135 | while (p < stop) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 136 | *string++ = *p++; |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 137 | } |
epoger@google.com | d88a3d8 | 2013-06-19 18:27:20 +0000 | [diff] [blame] | 138 | SkASSERT(string - start <= SkStrAppendU32_MaxSize); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 139 | return string; |
| 140 | } |
| 141 | |
epoger@google.com | d88a3d8 | 2013-06-19 18:27:20 +0000 | [diff] [blame] | 142 | char* SkStrAppendS32(char string[], int32_t dec) { |
mtklein | 225fb98 | 2014-11-05 11:35:21 -0800 | [diff] [blame] | 143 | uint32_t udec = dec; |
vandebo@chromium.org | d877fdb | 2010-10-12 23:08:13 +0000 | [diff] [blame] | 144 | if (dec < 0) { |
epoger@google.com | d88a3d8 | 2013-06-19 18:27:20 +0000 | [diff] [blame] | 145 | *string++ = '-'; |
mtklein | 225fb98 | 2014-11-05 11:35:21 -0800 | [diff] [blame] | 146 | udec = ~udec + 1; // udec = -udec, but silences some warnings that are trying to be helpful |
vandebo@chromium.org | d877fdb | 2010-10-12 23:08:13 +0000 | [diff] [blame] | 147 | } |
mtklein | 225fb98 | 2014-11-05 11:35:21 -0800 | [diff] [blame] | 148 | return SkStrAppendU32(string, udec); |
epoger@google.com | d88a3d8 | 2013-06-19 18:27:20 +0000 | [diff] [blame] | 149 | } |
| 150 | |
| 151 | char* SkStrAppendU64(char string[], uint64_t dec, int minDigits) { |
| 152 | SkDEBUGCODE(char* start = string;) |
| 153 | |
| 154 | char buffer[SkStrAppendU64_MaxSize]; |
| 155 | char* p = buffer + sizeof(buffer); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 156 | |
vandebo@chromium.org | d877fdb | 2010-10-12 23:08:13 +0000 | [diff] [blame] | 157 | do { |
caryclark@google.com | 803eceb | 2012-06-06 12:09:34 +0000 | [diff] [blame] | 158 | *--p = SkToU8('0' + (int32_t) (dec % 10)); |
vandebo@chromium.org | d877fdb | 2010-10-12 23:08:13 +0000 | [diff] [blame] | 159 | dec /= 10; |
| 160 | minDigits--; |
| 161 | } while (dec != 0); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 162 | |
vandebo@chromium.org | d877fdb | 2010-10-12 23:08:13 +0000 | [diff] [blame] | 163 | while (minDigits > 0) { |
| 164 | *--p = '0'; |
| 165 | minDigits--; |
| 166 | } |
vandebo@chromium.org | d877fdb | 2010-10-12 23:08:13 +0000 | [diff] [blame] | 167 | |
| 168 | SkASSERT(p >= buffer); |
| 169 | size_t cp_len = buffer + sizeof(buffer) - p; |
| 170 | memcpy(string, p, cp_len); |
| 171 | string += cp_len; |
| 172 | |
epoger@google.com | d88a3d8 | 2013-06-19 18:27:20 +0000 | [diff] [blame] | 173 | SkASSERT(string - start <= SkStrAppendU64_MaxSize); |
vandebo@chromium.org | d877fdb | 2010-10-12 23:08:13 +0000 | [diff] [blame] | 174 | return string; |
| 175 | } |
| 176 | |
epoger@google.com | d88a3d8 | 2013-06-19 18:27:20 +0000 | [diff] [blame] | 177 | char* SkStrAppendS64(char string[], int64_t dec, int minDigits) { |
mtklein | 225fb98 | 2014-11-05 11:35:21 -0800 | [diff] [blame] | 178 | uint64_t udec = dec; |
epoger@google.com | d88a3d8 | 2013-06-19 18:27:20 +0000 | [diff] [blame] | 179 | if (dec < 0) { |
| 180 | *string++ = '-'; |
mtklein | 225fb98 | 2014-11-05 11:35:21 -0800 | [diff] [blame] | 181 | udec = ~udec + 1; // udec = -udec, but silences some warnings that are trying to be helpful |
epoger@google.com | d88a3d8 | 2013-06-19 18:27:20 +0000 | [diff] [blame] | 182 | } |
mtklein | 225fb98 | 2014-11-05 11:35:21 -0800 | [diff] [blame] | 183 | return SkStrAppendU64(string, udec, minDigits); |
epoger@google.com | d88a3d8 | 2013-06-19 18:27:20 +0000 | [diff] [blame] | 184 | } |
| 185 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 186 | char* SkStrAppendFloat(char string[], float value) { |
reed@google.com | 8072e4f | 2011-03-01 15:44:08 +0000 | [diff] [blame] | 187 | // since floats have at most 8 significant digits, we limit our %g to that. |
| 188 | static const char gFormat[] = "%.8g"; |
| 189 | // make it 1 larger for the terminating 0 |
| 190 | char buffer[SkStrAppendScalar_MaxSize + 1]; |
| 191 | int len = SNPRINTF(buffer, sizeof(buffer), gFormat, value); |
| 192 | memcpy(string, buffer, len); |
vandebo@chromium.org | 677cbed | 2011-03-03 18:20:12 +0000 | [diff] [blame] | 193 | SkASSERT(len <= SkStrAppendScalar_MaxSize); |
reed@google.com | 8072e4f | 2011-03-01 15:44:08 +0000 | [diff] [blame] | 194 | return string + len; |
vandebo@chromium.org | 677cbed | 2011-03-03 18:20:12 +0000 | [diff] [blame] | 195 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 196 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 197 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 198 | |
Ben Wagner | eccda1c | 2017-10-05 10:13:51 -0400 | [diff] [blame^] | 199 | const SkString::Rec SkString::gEmptyRec(0, 0); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 200 | |
| 201 | #define SizeOfRec() (gEmptyRec.data() - (const char*)&gEmptyRec) |
| 202 | |
reed@google.com | 8cb1088 | 2013-06-04 20:36:52 +0000 | [diff] [blame] | 203 | static uint32_t trim_size_t_to_u32(size_t value) { |
| 204 | if (sizeof(size_t) > sizeof(uint32_t)) { |
| 205 | if (value > SK_MaxU32) { |
| 206 | value = SK_MaxU32; |
| 207 | } |
| 208 | } |
| 209 | return (uint32_t)value; |
| 210 | } |
| 211 | |
| 212 | static size_t check_add32(size_t base, size_t extra) { |
| 213 | SkASSERT(base <= SK_MaxU32); |
| 214 | if (sizeof(size_t) > sizeof(uint32_t)) { |
| 215 | if (base + extra > SK_MaxU32) { |
| 216 | extra = SK_MaxU32 - base; |
| 217 | } |
| 218 | } |
| 219 | return extra; |
| 220 | } |
| 221 | |
Ben Wagner | eccda1c | 2017-10-05 10:13:51 -0400 | [diff] [blame^] | 222 | sk_sp<SkString::Rec> SkString::Rec::Make(const char text[], size_t len) { |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 223 | if (0 == len) { |
Ben Wagner | eccda1c | 2017-10-05 10:13:51 -0400 | [diff] [blame^] | 224 | return sk_sp<SkString::Rec>(const_cast<Rec*>(&gEmptyRec)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 225 | } |
Ben Wagner | eccda1c | 2017-10-05 10:13:51 -0400 | [diff] [blame^] | 226 | |
| 227 | len = trim_size_t_to_u32(len); |
| 228 | // add 1 for terminating 0, then align4 so we can have some slop when growing the string |
| 229 | const size_t actualLength = SizeOfRec() + SkAlign4(len + 1); |
| 230 | SkASSERT_RELEASE(len < actualLength); // Check for overflow. |
| 231 | |
| 232 | void* storage = ::operator new (actualLength); |
| 233 | sk_sp<Rec> rec(new (storage) Rec(SkToU32(len), 1)); |
| 234 | if (text) { |
| 235 | memcpy(rec->data(), text, len); |
| 236 | } |
| 237 | rec->data()[len] = 0; |
Robert Phillips | 01f8e41 | 2017-10-05 11:28:20 +0000 | [diff] [blame] | 238 | return rec; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 239 | } |
| 240 | |
Ben Wagner | eccda1c | 2017-10-05 10:13:51 -0400 | [diff] [blame^] | 241 | void SkString::Rec::ref() const { |
| 242 | if (this == &SkString::gEmptyRec) { |
| 243 | return; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 244 | } |
Ben Wagner | eccda1c | 2017-10-05 10:13:51 -0400 | [diff] [blame^] | 245 | SkAssertResult(this->fRefCnt.fetch_add(+1, std::memory_order_relaxed)); |
| 246 | } |
| 247 | |
| 248 | void SkString::Rec::unref() const { |
| 249 | if (this == &SkString::gEmptyRec) { |
| 250 | return; |
| 251 | } |
| 252 | int32_t oldRefCnt = this->fRefCnt.fetch_add(-1, std::memory_order_acq_rel); |
| 253 | SkASSERT(oldRefCnt); |
| 254 | if (1 == oldRefCnt) { |
| 255 | delete this; |
| 256 | } |
| 257 | } |
| 258 | |
| 259 | bool SkString::Rec::unique() const { |
| 260 | return fRefCnt.load(std::memory_order_acquire) == 1; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 261 | } |
| 262 | |
| 263 | #ifdef SK_DEBUG |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 264 | void SkString::validate() const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 265 | // make sure know one has written over our global |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 266 | SkASSERT(0 == gEmptyRec.fLength); |
Ben Wagner | af89366 | 2017-10-03 11:08:14 -0400 | [diff] [blame] | 267 | SkASSERT(0 == gEmptyRec.fRefCnt.load(std::memory_order_relaxed)); |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 268 | SkASSERT(0 == gEmptyRec.data()[0]); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 269 | |
Ben Wagner | eccda1c | 2017-10-05 10:13:51 -0400 | [diff] [blame^] | 270 | if (fRec.get() != &gEmptyRec) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 271 | SkASSERT(fRec->fLength > 0); |
Ben Wagner | af89366 | 2017-10-03 11:08:14 -0400 | [diff] [blame] | 272 | SkASSERT(fRec->fRefCnt.load(std::memory_order_relaxed) > 0); |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 273 | SkASSERT(0 == fRec->data()[fRec->fLength]); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 274 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 275 | } |
| 276 | #endif |
| 277 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 278 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 279 | |
| 280 | SkString::SkString() : fRec(const_cast<Rec*>(&gEmptyRec)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 281 | } |
| 282 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 283 | SkString::SkString(size_t len) { |
Ben Wagner | eccda1c | 2017-10-05 10:13:51 -0400 | [diff] [blame^] | 284 | fRec = Rec::Make(nullptr, len); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 285 | } |
| 286 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 287 | SkString::SkString(const char text[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 288 | size_t len = text ? strlen(text) : 0; |
| 289 | |
Ben Wagner | eccda1c | 2017-10-05 10:13:51 -0400 | [diff] [blame^] | 290 | fRec = Rec::Make(text, len); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 291 | } |
| 292 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 293 | SkString::SkString(const char text[], size_t len) { |
Ben Wagner | eccda1c | 2017-10-05 10:13:51 -0400 | [diff] [blame^] | 294 | fRec = Rec::Make(text, len); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 295 | } |
| 296 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 297 | SkString::SkString(const SkString& src) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 298 | src.validate(); |
| 299 | |
Ben Wagner | eccda1c | 2017-10-05 10:13:51 -0400 | [diff] [blame^] | 300 | fRec = src.fRec; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 301 | } |
| 302 | |
bungeman | 9d55297 | 2016-02-07 18:42:54 -0800 | [diff] [blame] | 303 | SkString::SkString(SkString&& src) { |
| 304 | src.validate(); |
| 305 | |
Ben Wagner | eccda1c | 2017-10-05 10:13:51 -0400 | [diff] [blame^] | 306 | fRec = std::move(src.fRec); |
| 307 | src.fRec.reset(const_cast<Rec*>(&gEmptyRec)); |
bungeman | 9d55297 | 2016-02-07 18:42:54 -0800 | [diff] [blame] | 308 | } |
| 309 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 310 | SkString::~SkString() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 311 | this->validate(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 312 | } |
| 313 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 314 | bool SkString::equals(const SkString& src) const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 315 | return fRec == src.fRec || this->equals(src.c_str(), src.size()); |
| 316 | } |
| 317 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 318 | bool SkString::equals(const char text[]) const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 319 | return this->equals(text, text ? strlen(text) : 0); |
| 320 | } |
| 321 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 322 | bool SkString::equals(const char text[], size_t len) const { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 323 | SkASSERT(len == 0 || text != nullptr); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 324 | |
| 325 | return fRec->fLength == len && !memcmp(fRec->data(), text, len); |
| 326 | } |
| 327 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 328 | SkString& SkString::operator=(const SkString& src) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 329 | this->validate(); |
| 330 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 331 | if (fRec != src.fRec) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 332 | SkString tmp(src); |
| 333 | this->swap(tmp); |
| 334 | } |
| 335 | return *this; |
| 336 | } |
| 337 | |
bungeman | 9d55297 | 2016-02-07 18:42:54 -0800 | [diff] [blame] | 338 | SkString& SkString::operator=(SkString&& src) { |
| 339 | this->validate(); |
| 340 | |
| 341 | if (fRec != src.fRec) { |
| 342 | this->swap(src); |
| 343 | } |
| 344 | return *this; |
| 345 | } |
| 346 | |
bsalomon@google.com | fc29629 | 2011-05-06 13:53:47 +0000 | [diff] [blame] | 347 | SkString& SkString::operator=(const char text[]) { |
| 348 | this->validate(); |
| 349 | |
| 350 | SkString tmp(text); |
| 351 | this->swap(tmp); |
| 352 | |
| 353 | return *this; |
| 354 | } |
| 355 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 356 | void SkString::reset() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 357 | this->validate(); |
Ben Wagner | eccda1c | 2017-10-05 10:13:51 -0400 | [diff] [blame^] | 358 | fRec.reset(const_cast<Rec*>(&gEmptyRec)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 359 | } |
| 360 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 361 | char* SkString::writable_str() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 362 | this->validate(); |
| 363 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 364 | if (fRec->fLength) { |
Ben Wagner | af89366 | 2017-10-03 11:08:14 -0400 | [diff] [blame] | 365 | if (!fRec->unique()) { |
Ben Wagner | eccda1c | 2017-10-05 10:13:51 -0400 | [diff] [blame^] | 366 | fRec = Rec::Make(fRec->data(), fRec->fLength); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 367 | } |
| 368 | } |
| 369 | return fRec->data(); |
| 370 | } |
| 371 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 372 | void SkString::set(const char text[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 373 | this->set(text, text ? strlen(text) : 0); |
| 374 | } |
| 375 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 376 | void SkString::set(const char text[], size_t len) { |
reed@google.com | 8cb1088 | 2013-06-04 20:36:52 +0000 | [diff] [blame] | 377 | len = trim_size_t_to_u32(len); |
Ben Wagner | af89366 | 2017-10-03 11:08:14 -0400 | [diff] [blame] | 378 | bool unique = fRec->unique(); |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 379 | if (0 == len) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 380 | this->reset(); |
Ben Wagner | af89366 | 2017-10-03 11:08:14 -0400 | [diff] [blame] | 381 | } else if (unique && len <= fRec->fLength) { |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 382 | // should we resize if len <<<< fLength, to save RAM? (e.g. len < (fLength>>1))? |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 383 | // just use less of the buffer without allocating a smaller one |
| 384 | char* p = this->writable_str(); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 385 | if (text) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 386 | memcpy(p, text, len); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 387 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 388 | p[len] = 0; |
reed@google.com | 8cb1088 | 2013-06-04 20:36:52 +0000 | [diff] [blame] | 389 | fRec->fLength = SkToU32(len); |
Ben Wagner | af89366 | 2017-10-03 11:08:14 -0400 | [diff] [blame] | 390 | } else if (unique && (fRec->fLength >> 2) == (len >> 2)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 391 | // we have spare room in the current allocation, so don't alloc a larger one |
| 392 | char* p = this->writable_str(); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 393 | if (text) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 394 | memcpy(p, text, len); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 395 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 396 | p[len] = 0; |
reed@google.com | 8cb1088 | 2013-06-04 20:36:52 +0000 | [diff] [blame] | 397 | fRec->fLength = SkToU32(len); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 398 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 399 | SkString tmp(text, len); |
| 400 | this->swap(tmp); |
| 401 | } |
| 402 | } |
| 403 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 404 | void SkString::setUTF16(const uint16_t src[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 405 | int count = 0; |
| 406 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 407 | while (src[count]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 408 | count += 1; |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 409 | } |
reed@google.com | 8cb1088 | 2013-06-04 20:36:52 +0000 | [diff] [blame] | 410 | this->setUTF16(src, count); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 411 | } |
| 412 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 413 | void SkString::setUTF16(const uint16_t src[], size_t count) { |
reed@google.com | 8cb1088 | 2013-06-04 20:36:52 +0000 | [diff] [blame] | 414 | count = trim_size_t_to_u32(count); |
| 415 | |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 416 | if (0 == count) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 417 | this->reset(); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 418 | } else if (count <= fRec->fLength) { |
| 419 | // should we resize if len <<<< fLength, to save RAM? (e.g. len < (fLength>>1)) |
| 420 | if (count < fRec->fLength) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 421 | this->resize(count); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 422 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 423 | char* p = this->writable_str(); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 424 | for (size_t i = 0; i < count; i++) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 425 | p[i] = SkToU8(src[i]); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 426 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 427 | p[count] = 0; |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 428 | } else { |
| 429 | SkString tmp(count); // puts a null terminator at the end of the string |
| 430 | char* p = tmp.writable_str(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 431 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 432 | for (size_t i = 0; i < count; i++) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 433 | p[i] = SkToU8(src[i]); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 434 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 435 | this->swap(tmp); |
| 436 | } |
| 437 | } |
| 438 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 439 | void SkString::insert(size_t offset, const char text[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 440 | this->insert(offset, text, text ? strlen(text) : 0); |
| 441 | } |
| 442 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 443 | void SkString::insert(size_t offset, const char text[], size_t len) { |
| 444 | if (len) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 445 | size_t length = fRec->fLength; |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 446 | if (offset > length) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 447 | offset = length; |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 448 | } |
skia.committer@gmail.com | 8f6ef40 | 2013-06-05 07:01:06 +0000 | [diff] [blame] | 449 | |
reed@google.com | 8cb1088 | 2013-06-04 20:36:52 +0000 | [diff] [blame] | 450 | // Check if length + len exceeds 32bits, we trim len |
| 451 | len = check_add32(length, len); |
| 452 | if (0 == len) { |
| 453 | return; |
| 454 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 455 | |
| 456 | /* If we're the only owner, and we have room in our allocation for the insert, |
| 457 | do it in place, rather than allocating a new buffer. |
| 458 | |
| 459 | To know we have room, compare the allocated sizes |
| 460 | beforeAlloc = SkAlign4(length + 1) |
| 461 | afterAlloc = SkAligh4(length + 1 + len) |
| 462 | but SkAlign4(x) is (x + 3) >> 2 << 2 |
| 463 | which is equivalent for testing to (length + 1 + 3) >> 2 == (length + 1 + 3 + len) >> 2 |
| 464 | and we can then eliminate the +1+3 since that doesn't affec the answer |
| 465 | */ |
Ben Wagner | af89366 | 2017-10-03 11:08:14 -0400 | [diff] [blame] | 466 | if (fRec->unique() && (length >> 2) == ((length + len) >> 2)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 467 | char* dst = this->writable_str(); |
| 468 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 469 | if (offset < length) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 470 | memmove(dst + offset + len, dst + offset, length - offset); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 471 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 472 | memcpy(dst + offset, text, len); |
| 473 | |
| 474 | dst[length + len] = 0; |
reed@google.com | 8cb1088 | 2013-06-04 20:36:52 +0000 | [diff] [blame] | 475 | fRec->fLength = SkToU32(length + len); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 476 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 477 | /* Seems we should use realloc here, since that is safe if it fails |
| 478 | (we have the original data), and might be faster than alloc/copy/free. |
| 479 | */ |
| 480 | SkString tmp(fRec->fLength + len); |
| 481 | char* dst = tmp.writable_str(); |
| 482 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 483 | if (offset > 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 484 | memcpy(dst, fRec->data(), offset); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 485 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 486 | memcpy(dst + offset, text, len); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 487 | if (offset < fRec->fLength) { |
| 488 | memcpy(dst + offset + len, fRec->data() + offset, |
| 489 | fRec->fLength - offset); |
| 490 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 491 | |
| 492 | this->swap(tmp); |
| 493 | } |
| 494 | } |
| 495 | } |
| 496 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 497 | void SkString::insertUnichar(size_t offset, SkUnichar uni) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 498 | char buffer[kMaxBytesInUTF8Sequence]; |
| 499 | size_t len = SkUTF8_FromUnichar(uni, buffer); |
| 500 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 501 | if (len) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 502 | this->insert(offset, buffer, len); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 503 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 504 | } |
| 505 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 506 | void SkString::insertS32(size_t offset, int32_t dec) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 507 | char buffer[SkStrAppendS32_MaxSize]; |
| 508 | char* stop = SkStrAppendS32(buffer, dec); |
| 509 | this->insert(offset, buffer, stop - buffer); |
| 510 | } |
| 511 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 512 | void SkString::insertS64(size_t offset, int64_t dec, int minDigits) { |
vandebo@chromium.org | d877fdb | 2010-10-12 23:08:13 +0000 | [diff] [blame] | 513 | char buffer[SkStrAppendS64_MaxSize]; |
| 514 | char* stop = SkStrAppendS64(buffer, dec, minDigits); |
| 515 | this->insert(offset, buffer, stop - buffer); |
| 516 | } |
| 517 | |
epoger@google.com | d88a3d8 | 2013-06-19 18:27:20 +0000 | [diff] [blame] | 518 | void SkString::insertU32(size_t offset, uint32_t dec) { |
| 519 | char buffer[SkStrAppendU32_MaxSize]; |
| 520 | char* stop = SkStrAppendU32(buffer, dec); |
| 521 | this->insert(offset, buffer, stop - buffer); |
| 522 | } |
| 523 | |
| 524 | void SkString::insertU64(size_t offset, uint64_t dec, int minDigits) { |
| 525 | char buffer[SkStrAppendU64_MaxSize]; |
| 526 | char* stop = SkStrAppendU64(buffer, dec, minDigits); |
| 527 | this->insert(offset, buffer, stop - buffer); |
| 528 | } |
| 529 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 530 | void SkString::insertHex(size_t offset, uint32_t hex, int minDigits) { |
bungeman | 62ce030 | 2015-08-28 09:09:32 -0700 | [diff] [blame] | 531 | minDigits = SkTPin(minDigits, 0, 8); |
reed@google.com | fa06e52 | 2011-02-28 21:29:58 +0000 | [diff] [blame] | 532 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 533 | char buffer[8]; |
| 534 | char* p = buffer + sizeof(buffer); |
| 535 | |
| 536 | do { |
Hal Canary | d6e6e66 | 2017-06-17 10:38:13 -0400 | [diff] [blame] | 537 | *--p = SkHexadecimalDigits::gUpper[hex & 0xF]; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 538 | hex >>= 4; |
| 539 | minDigits -= 1; |
| 540 | } while (hex != 0); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 541 | |
| 542 | while (--minDigits >= 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 543 | *--p = '0'; |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 544 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 545 | |
| 546 | SkASSERT(p >= buffer); |
| 547 | this->insert(offset, p, buffer + sizeof(buffer) - p); |
| 548 | } |
| 549 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 550 | void SkString::insertScalar(size_t offset, SkScalar value) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 551 | char buffer[SkStrAppendScalar_MaxSize]; |
| 552 | char* stop = SkStrAppendScalar(buffer, value); |
| 553 | this->insert(offset, buffer, stop - buffer); |
| 554 | } |
| 555 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 556 | void SkString::printf(const char format[], ...) { |
halcanary | d51bdae | 2016-04-25 09:25:35 -0700 | [diff] [blame] | 557 | V_SKSTRING_PRINTF((*this), format); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 558 | } |
| 559 | |
| 560 | void SkString::appendf(const char format[], ...) { |
| 561 | char buffer[kBufferSize]; |
joshualitt | 976386b | 2014-10-23 18:23:32 -0700 | [diff] [blame] | 562 | int length; |
| 563 | ARGS_TO_BUFFER(format, buffer, kBufferSize, length); |
reed@google.com | fa06e52 | 2011-02-28 21:29:58 +0000 | [diff] [blame] | 564 | |
joshualitt | 976386b | 2014-10-23 18:23:32 -0700 | [diff] [blame] | 565 | this->append(buffer, length); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 566 | } |
| 567 | |
commit-bot@chromium.org | ce0e4ef | 2013-11-21 17:20:17 +0000 | [diff] [blame] | 568 | void SkString::appendVAList(const char format[], va_list args) { |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 569 | char buffer[kBufferSize]; |
joshualitt | 976386b | 2014-10-23 18:23:32 -0700 | [diff] [blame] | 570 | int length = VSNPRINTF(buffer, kBufferSize, format, args); |
| 571 | SkASSERT(length >= 0 && length < SkToInt(kBufferSize)); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 572 | |
joshualitt | 976386b | 2014-10-23 18:23:32 -0700 | [diff] [blame] | 573 | this->append(buffer, length); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 574 | } |
| 575 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 576 | void SkString::prependf(const char format[], ...) { |
| 577 | char buffer[kBufferSize]; |
joshualitt | 976386b | 2014-10-23 18:23:32 -0700 | [diff] [blame] | 578 | int length; |
| 579 | ARGS_TO_BUFFER(format, buffer, kBufferSize, length); |
reed@google.com | fa06e52 | 2011-02-28 21:29:58 +0000 | [diff] [blame] | 580 | |
joshualitt | 976386b | 2014-10-23 18:23:32 -0700 | [diff] [blame] | 581 | this->prepend(buffer, length); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 582 | } |
| 583 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 584 | void SkString::prependVAList(const char format[], va_list args) { |
| 585 | char buffer[kBufferSize]; |
joshualitt | 976386b | 2014-10-23 18:23:32 -0700 | [diff] [blame] | 586 | int length = VSNPRINTF(buffer, kBufferSize, format, args); |
| 587 | SkASSERT(length >= 0 && length < SkToInt(kBufferSize)); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 588 | |
joshualitt | 976386b | 2014-10-23 18:23:32 -0700 | [diff] [blame] | 589 | this->prepend(buffer, length); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 590 | } |
| 591 | |
| 592 | |
reed@google.com | fa06e52 | 2011-02-28 21:29:58 +0000 | [diff] [blame] | 593 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 594 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 595 | void SkString::remove(size_t offset, size_t length) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 596 | size_t size = this->size(); |
| 597 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 598 | if (offset < size) { |
bungeman | dfb9bc4 | 2014-08-11 07:19:56 -0700 | [diff] [blame] | 599 | if (length > size - offset) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 600 | length = size - offset; |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 601 | } |
bungeman | dfb9bc4 | 2014-08-11 07:19:56 -0700 | [diff] [blame] | 602 | SkASSERT(length <= size); |
| 603 | SkASSERT(offset <= size - length); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 604 | if (length > 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 605 | SkString tmp(size - length); |
| 606 | char* dst = tmp.writable_str(); |
| 607 | const char* src = this->c_str(); |
| 608 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 609 | if (offset) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 610 | memcpy(dst, src, offset); |
| 611 | } |
bungeman | dfb9bc4 | 2014-08-11 07:19:56 -0700 | [diff] [blame] | 612 | size_t tail = size - (offset + length); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 613 | if (tail) { |
bungeman | dfb9bc4 | 2014-08-11 07:19:56 -0700 | [diff] [blame] | 614 | memcpy(dst + offset, src + (offset + length), tail); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 615 | } |
| 616 | SkASSERT(dst[tmp.size()] == 0); |
| 617 | this->swap(tmp); |
| 618 | } |
| 619 | } |
| 620 | } |
| 621 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 622 | void SkString::swap(SkString& other) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 623 | this->validate(); |
| 624 | other.validate(); |
| 625 | |
Ben Wagner | eccda1c | 2017-10-05 10:13:51 -0400 | [diff] [blame^] | 626 | SkTSwap(fRec, other.fRec); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 627 | } |
| 628 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 629 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 630 | |
tomhudson@google.com | 3a1f6a0 | 2011-06-30 14:39:52 +0000 | [diff] [blame] | 631 | SkString SkStringPrintf(const char* format, ...) { |
| 632 | SkString formattedOutput; |
halcanary | d51bdae | 2016-04-25 09:25:35 -0700 | [diff] [blame] | 633 | V_SKSTRING_PRINTF(formattedOutput, format); |
tomhudson@google.com | 3a1f6a0 | 2011-06-30 14:39:52 +0000 | [diff] [blame] | 634 | return formattedOutput; |
| 635 | } |
| 636 | |
kkinnunen | 3e980c3 | 2015-12-23 01:33:00 -0800 | [diff] [blame] | 637 | void SkStrSplit(const char* str, const char* delimiters, SkStrSplitMode splitMode, |
| 638 | SkTArray<SkString>* out) { |
| 639 | if (splitMode == kCoalesce_SkStrSplitMode) { |
rmistry | 0f515bd | 2015-12-22 10:22:26 -0800 | [diff] [blame] | 640 | // Skip any delimiters. |
| 641 | str += strspn(str, delimiters); |
kkinnunen | 9ebc3f0 | 2015-12-21 23:48:13 -0800 | [diff] [blame] | 642 | } |
kkinnunen | 3e980c3 | 2015-12-23 01:33:00 -0800 | [diff] [blame] | 643 | if (!*str) { |
| 644 | return; |
| 645 | } |
| 646 | |
| 647 | while (true) { |
| 648 | // Find a token. |
| 649 | const size_t len = strcspn(str, delimiters); |
| 650 | if (splitMode == kStrict_SkStrSplitMode || len > 0) { |
| 651 | out->push_back().set(str, len); |
| 652 | str += len; |
| 653 | } |
| 654 | |
| 655 | if (!*str) { |
| 656 | return; |
| 657 | } |
| 658 | if (splitMode == kCoalesce_SkStrSplitMode) { |
| 659 | // Skip any delimiters. |
| 660 | str += strspn(str, delimiters); |
| 661 | } else { |
| 662 | // Skip one delimiter. |
| 663 | str += 1; |
| 664 | } |
| 665 | } |
rmistry@google.com | d6bab02 | 2013-12-02 13:50:38 +0000 | [diff] [blame] | 666 | } |
| 667 | |
tomhudson@google.com | 3a1f6a0 | 2011-06-30 14:39:52 +0000 | [diff] [blame] | 668 | #undef VSNPRINTF |
tomhudson@google.com | 47e0a09 | 2011-07-08 17:49:22 +0000 | [diff] [blame] | 669 | #undef SNPRINTF |