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 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 199 | // the 3 values are [length] [refcnt] [terminating zero data] |
| 200 | const SkString::Rec SkString::gEmptyRec = { 0, 0, 0 }; |
| 201 | |
| 202 | #define SizeOfRec() (gEmptyRec.data() - (const char*)&gEmptyRec) |
| 203 | |
reed@google.com | 8cb1088 | 2013-06-04 20:36:52 +0000 | [diff] [blame] | 204 | static uint32_t trim_size_t_to_u32(size_t value) { |
| 205 | if (sizeof(size_t) > sizeof(uint32_t)) { |
| 206 | if (value > SK_MaxU32) { |
| 207 | value = SK_MaxU32; |
| 208 | } |
| 209 | } |
| 210 | return (uint32_t)value; |
| 211 | } |
| 212 | |
| 213 | static size_t check_add32(size_t base, size_t extra) { |
| 214 | SkASSERT(base <= SK_MaxU32); |
| 215 | if (sizeof(size_t) > sizeof(uint32_t)) { |
| 216 | if (base + extra > SK_MaxU32) { |
| 217 | extra = SK_MaxU32 - base; |
| 218 | } |
| 219 | } |
| 220 | return extra; |
| 221 | } |
| 222 | |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 223 | SkString::Rec* SkString::AllocRec(const char text[], size_t len) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 224 | Rec* rec; |
| 225 | |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 226 | if (0 == len) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 227 | rec = const_cast<Rec*>(&gEmptyRec); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 228 | } else { |
reed@google.com | 8cb1088 | 2013-06-04 20:36:52 +0000 | [diff] [blame] | 229 | len = trim_size_t_to_u32(len); |
| 230 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 231 | // add 1 for terminating 0, then align4 so we can have some slop when growing the string |
| 232 | rec = (Rec*)sk_malloc_throw(SizeOfRec() + SkAlign4(len + 1)); |
reed@google.com | 8cb1088 | 2013-06-04 20:36:52 +0000 | [diff] [blame] | 233 | rec->fLength = SkToU32(len); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 234 | rec->fRefCnt = 1; |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 235 | if (text) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 236 | memcpy(rec->data(), text, len); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 237 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 238 | rec->data()[len] = 0; |
| 239 | } |
| 240 | return rec; |
| 241 | } |
| 242 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 243 | SkString::Rec* SkString::RefRec(Rec* src) { |
| 244 | if (src != &gEmptyRec) { |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 245 | sk_atomic_inc(&src->fRefCnt); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 246 | } |
| 247 | return src; |
| 248 | } |
| 249 | |
| 250 | #ifdef SK_DEBUG |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 251 | void SkString::validate() const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 252 | // make sure know one has written over our global |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 253 | SkASSERT(0 == gEmptyRec.fLength); |
| 254 | SkASSERT(0 == gEmptyRec.fRefCnt); |
| 255 | SkASSERT(0 == gEmptyRec.data()[0]); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 256 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 257 | if (fRec != &gEmptyRec) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 258 | SkASSERT(fRec->fLength > 0); |
| 259 | SkASSERT(fRec->fRefCnt > 0); |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 260 | SkASSERT(0 == fRec->data()[fRec->fLength]); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 261 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 262 | } |
| 263 | #endif |
| 264 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 265 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 266 | |
| 267 | SkString::SkString() : fRec(const_cast<Rec*>(&gEmptyRec)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 268 | } |
| 269 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 270 | SkString::SkString(size_t len) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 271 | fRec = AllocRec(nullptr, len); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 272 | } |
| 273 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 274 | SkString::SkString(const char text[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 275 | size_t len = text ? strlen(text) : 0; |
| 276 | |
bsalomon@google.com | 8686be2 | 2013-05-13 18:48:40 +0000 | [diff] [blame] | 277 | fRec = AllocRec(text, len); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 278 | } |
| 279 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 280 | SkString::SkString(const char text[], size_t len) { |
bsalomon@google.com | 8686be2 | 2013-05-13 18:48:40 +0000 | [diff] [blame] | 281 | fRec = AllocRec(text, len); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 282 | } |
| 283 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 284 | SkString::SkString(const SkString& src) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 285 | src.validate(); |
| 286 | |
| 287 | fRec = RefRec(src.fRec); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 288 | } |
| 289 | |
bungeman | 9d55297 | 2016-02-07 18:42:54 -0800 | [diff] [blame] | 290 | SkString::SkString(SkString&& src) { |
| 291 | src.validate(); |
| 292 | |
| 293 | fRec = src.fRec; |
| 294 | src.fRec = const_cast<Rec*>(&gEmptyRec); |
| 295 | } |
| 296 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 297 | SkString::~SkString() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 298 | this->validate(); |
| 299 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 300 | if (fRec->fLength) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 301 | SkASSERT(fRec->fRefCnt > 0); |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 302 | if (sk_atomic_dec(&fRec->fRefCnt) == 1) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 303 | sk_free(fRec); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 304 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 305 | } |
| 306 | } |
| 307 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 308 | bool SkString::equals(const SkString& src) const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 309 | return fRec == src.fRec || this->equals(src.c_str(), src.size()); |
| 310 | } |
| 311 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 312 | bool SkString::equals(const char text[]) const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 313 | return this->equals(text, text ? strlen(text) : 0); |
| 314 | } |
| 315 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 316 | bool SkString::equals(const char text[], size_t len) const { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 317 | SkASSERT(len == 0 || text != nullptr); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 318 | |
| 319 | return fRec->fLength == len && !memcmp(fRec->data(), text, len); |
| 320 | } |
| 321 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 322 | SkString& SkString::operator=(const SkString& src) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 323 | this->validate(); |
| 324 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 325 | if (fRec != src.fRec) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 326 | SkString tmp(src); |
| 327 | this->swap(tmp); |
| 328 | } |
| 329 | return *this; |
| 330 | } |
| 331 | |
bungeman | 9d55297 | 2016-02-07 18:42:54 -0800 | [diff] [blame] | 332 | SkString& SkString::operator=(SkString&& src) { |
| 333 | this->validate(); |
| 334 | |
| 335 | if (fRec != src.fRec) { |
| 336 | this->swap(src); |
| 337 | } |
| 338 | return *this; |
| 339 | } |
| 340 | |
bsalomon@google.com | fc29629 | 2011-05-06 13:53:47 +0000 | [diff] [blame] | 341 | SkString& SkString::operator=(const char text[]) { |
| 342 | this->validate(); |
| 343 | |
| 344 | SkString tmp(text); |
| 345 | this->swap(tmp); |
| 346 | |
| 347 | return *this; |
| 348 | } |
| 349 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 350 | void SkString::reset() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 351 | this->validate(); |
| 352 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 353 | if (fRec->fLength) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 354 | SkASSERT(fRec->fRefCnt > 0); |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 355 | if (sk_atomic_dec(&fRec->fRefCnt) == 1) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 356 | sk_free(fRec); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 357 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 358 | } |
| 359 | |
| 360 | fRec = const_cast<Rec*>(&gEmptyRec); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 361 | } |
| 362 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 363 | char* SkString::writable_str() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 364 | this->validate(); |
| 365 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 366 | if (fRec->fLength) { |
| 367 | if (fRec->fRefCnt > 1) { |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 368 | Rec* rec = AllocRec(fRec->data(), fRec->fLength); |
| 369 | if (sk_atomic_dec(&fRec->fRefCnt) == 1) { |
| 370 | // In this case after our check of fRecCnt > 1, we suddenly |
| 371 | // did become the only owner, so now we have two copies of the |
| 372 | // data (fRec and rec), so we need to delete one of them. |
| 373 | sk_free(fRec); |
| 374 | } |
| 375 | fRec = rec; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 376 | } |
| 377 | } |
| 378 | return fRec->data(); |
| 379 | } |
| 380 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 381 | void SkString::set(const char text[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 382 | this->set(text, text ? strlen(text) : 0); |
| 383 | } |
| 384 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 385 | void SkString::set(const char text[], size_t len) { |
reed@google.com | 8cb1088 | 2013-06-04 20:36:52 +0000 | [diff] [blame] | 386 | len = trim_size_t_to_u32(len); |
| 387 | |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 388 | if (0 == len) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 389 | this->reset(); |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 390 | } else if (1 == fRec->fRefCnt && len <= fRec->fLength) { |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 391 | // 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] | 392 | // just use less of the buffer without allocating a smaller one |
| 393 | char* p = this->writable_str(); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 394 | if (text) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 395 | memcpy(p, text, len); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 396 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 397 | p[len] = 0; |
reed@google.com | 8cb1088 | 2013-06-04 20:36:52 +0000 | [diff] [blame] | 398 | fRec->fLength = SkToU32(len); |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 399 | } else if (1 == fRec->fRefCnt && (fRec->fLength >> 2) == (len >> 2)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 400 | // we have spare room in the current allocation, so don't alloc a larger one |
| 401 | char* p = this->writable_str(); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 402 | if (text) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 403 | memcpy(p, text, len); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 404 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 405 | p[len] = 0; |
reed@google.com | 8cb1088 | 2013-06-04 20:36:52 +0000 | [diff] [blame] | 406 | fRec->fLength = SkToU32(len); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 407 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 408 | SkString tmp(text, len); |
| 409 | this->swap(tmp); |
| 410 | } |
| 411 | } |
| 412 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 413 | void SkString::setUTF16(const uint16_t src[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 414 | int count = 0; |
| 415 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 416 | while (src[count]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 417 | count += 1; |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 418 | } |
reed@google.com | 8cb1088 | 2013-06-04 20:36:52 +0000 | [diff] [blame] | 419 | this->setUTF16(src, count); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 420 | } |
| 421 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 422 | void SkString::setUTF16(const uint16_t src[], size_t count) { |
reed@google.com | 8cb1088 | 2013-06-04 20:36:52 +0000 | [diff] [blame] | 423 | count = trim_size_t_to_u32(count); |
| 424 | |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 425 | if (0 == count) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 426 | this->reset(); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 427 | } else if (count <= fRec->fLength) { |
| 428 | // should we resize if len <<<< fLength, to save RAM? (e.g. len < (fLength>>1)) |
| 429 | if (count < fRec->fLength) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 430 | this->resize(count); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 431 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 432 | char* p = this->writable_str(); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 433 | for (size_t i = 0; i < count; i++) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 434 | p[i] = SkToU8(src[i]); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 435 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 436 | p[count] = 0; |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 437 | } else { |
| 438 | SkString tmp(count); // puts a null terminator at the end of the string |
| 439 | char* p = tmp.writable_str(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 440 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 441 | for (size_t i = 0; i < count; i++) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 442 | p[i] = SkToU8(src[i]); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 443 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 444 | this->swap(tmp); |
| 445 | } |
| 446 | } |
| 447 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 448 | void SkString::insert(size_t offset, const char text[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 449 | this->insert(offset, text, text ? strlen(text) : 0); |
| 450 | } |
| 451 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 452 | void SkString::insert(size_t offset, const char text[], size_t len) { |
| 453 | if (len) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 454 | size_t length = fRec->fLength; |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 455 | if (offset > length) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 456 | offset = length; |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 457 | } |
skia.committer@gmail.com | 8f6ef40 | 2013-06-05 07:01:06 +0000 | [diff] [blame] | 458 | |
reed@google.com | 8cb1088 | 2013-06-04 20:36:52 +0000 | [diff] [blame] | 459 | // Check if length + len exceeds 32bits, we trim len |
| 460 | len = check_add32(length, len); |
| 461 | if (0 == len) { |
| 462 | return; |
| 463 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 464 | |
| 465 | /* If we're the only owner, and we have room in our allocation for the insert, |
| 466 | do it in place, rather than allocating a new buffer. |
| 467 | |
| 468 | To know we have room, compare the allocated sizes |
| 469 | beforeAlloc = SkAlign4(length + 1) |
| 470 | afterAlloc = SkAligh4(length + 1 + len) |
| 471 | but SkAlign4(x) is (x + 3) >> 2 << 2 |
| 472 | which is equivalent for testing to (length + 1 + 3) >> 2 == (length + 1 + 3 + len) >> 2 |
| 473 | and we can then eliminate the +1+3 since that doesn't affec the answer |
| 474 | */ |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 475 | if (1 == fRec->fRefCnt && (length >> 2) == ((length + len) >> 2)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 476 | char* dst = this->writable_str(); |
| 477 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 478 | if (offset < length) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 479 | memmove(dst + offset + len, dst + offset, length - offset); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 480 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 481 | memcpy(dst + offset, text, len); |
| 482 | |
| 483 | dst[length + len] = 0; |
reed@google.com | 8cb1088 | 2013-06-04 20:36:52 +0000 | [diff] [blame] | 484 | fRec->fLength = SkToU32(length + len); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 485 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 486 | /* Seems we should use realloc here, since that is safe if it fails |
| 487 | (we have the original data), and might be faster than alloc/copy/free. |
| 488 | */ |
| 489 | SkString tmp(fRec->fLength + len); |
| 490 | char* dst = tmp.writable_str(); |
| 491 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 492 | if (offset > 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 493 | memcpy(dst, fRec->data(), offset); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 494 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 495 | memcpy(dst + offset, text, len); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 496 | if (offset < fRec->fLength) { |
| 497 | memcpy(dst + offset + len, fRec->data() + offset, |
| 498 | fRec->fLength - offset); |
| 499 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 500 | |
| 501 | this->swap(tmp); |
| 502 | } |
| 503 | } |
| 504 | } |
| 505 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 506 | void SkString::insertUnichar(size_t offset, SkUnichar uni) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 507 | char buffer[kMaxBytesInUTF8Sequence]; |
| 508 | size_t len = SkUTF8_FromUnichar(uni, buffer); |
| 509 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 510 | if (len) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 511 | this->insert(offset, buffer, len); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 512 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 513 | } |
| 514 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 515 | void SkString::insertS32(size_t offset, int32_t dec) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 516 | char buffer[SkStrAppendS32_MaxSize]; |
| 517 | char* stop = SkStrAppendS32(buffer, dec); |
| 518 | this->insert(offset, buffer, stop - buffer); |
| 519 | } |
| 520 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 521 | void SkString::insertS64(size_t offset, int64_t dec, int minDigits) { |
vandebo@chromium.org | d877fdb | 2010-10-12 23:08:13 +0000 | [diff] [blame] | 522 | char buffer[SkStrAppendS64_MaxSize]; |
| 523 | char* stop = SkStrAppendS64(buffer, dec, minDigits); |
| 524 | this->insert(offset, buffer, stop - buffer); |
| 525 | } |
| 526 | |
epoger@google.com | d88a3d8 | 2013-06-19 18:27:20 +0000 | [diff] [blame] | 527 | void SkString::insertU32(size_t offset, uint32_t dec) { |
| 528 | char buffer[SkStrAppendU32_MaxSize]; |
| 529 | char* stop = SkStrAppendU32(buffer, dec); |
| 530 | this->insert(offset, buffer, stop - buffer); |
| 531 | } |
| 532 | |
| 533 | void SkString::insertU64(size_t offset, uint64_t dec, int minDigits) { |
| 534 | char buffer[SkStrAppendU64_MaxSize]; |
| 535 | char* stop = SkStrAppendU64(buffer, dec, minDigits); |
| 536 | this->insert(offset, buffer, stop - buffer); |
| 537 | } |
| 538 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 539 | void SkString::insertHex(size_t offset, uint32_t hex, int minDigits) { |
bungeman | 62ce030 | 2015-08-28 09:09:32 -0700 | [diff] [blame] | 540 | minDigits = SkTPin(minDigits, 0, 8); |
reed@google.com | fa06e52 | 2011-02-28 21:29:58 +0000 | [diff] [blame] | 541 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 542 | char buffer[8]; |
| 543 | char* p = buffer + sizeof(buffer); |
| 544 | |
| 545 | do { |
Hal Canary | d6e6e66 | 2017-06-17 10:38:13 -0400 | [diff] [blame] | 546 | *--p = SkHexadecimalDigits::gUpper[hex & 0xF]; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 547 | hex >>= 4; |
| 548 | minDigits -= 1; |
| 549 | } while (hex != 0); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 550 | |
| 551 | while (--minDigits >= 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 552 | *--p = '0'; |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 553 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 554 | |
| 555 | SkASSERT(p >= buffer); |
| 556 | this->insert(offset, p, buffer + sizeof(buffer) - p); |
| 557 | } |
| 558 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 559 | void SkString::insertScalar(size_t offset, SkScalar value) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 560 | char buffer[SkStrAppendScalar_MaxSize]; |
| 561 | char* stop = SkStrAppendScalar(buffer, value); |
| 562 | this->insert(offset, buffer, stop - buffer); |
| 563 | } |
| 564 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 565 | void SkString::printf(const char format[], ...) { |
halcanary | d51bdae | 2016-04-25 09:25:35 -0700 | [diff] [blame] | 566 | V_SKSTRING_PRINTF((*this), format); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 567 | } |
| 568 | |
| 569 | void SkString::appendf(const char format[], ...) { |
| 570 | char buffer[kBufferSize]; |
joshualitt | 976386b | 2014-10-23 18:23:32 -0700 | [diff] [blame] | 571 | int length; |
| 572 | ARGS_TO_BUFFER(format, buffer, kBufferSize, length); |
reed@google.com | fa06e52 | 2011-02-28 21:29:58 +0000 | [diff] [blame] | 573 | |
joshualitt | 976386b | 2014-10-23 18:23:32 -0700 | [diff] [blame] | 574 | this->append(buffer, length); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 575 | } |
| 576 | |
commit-bot@chromium.org | ce0e4ef | 2013-11-21 17:20:17 +0000 | [diff] [blame] | 577 | void SkString::appendVAList(const char format[], va_list args) { |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 578 | char buffer[kBufferSize]; |
joshualitt | 976386b | 2014-10-23 18:23:32 -0700 | [diff] [blame] | 579 | int length = VSNPRINTF(buffer, kBufferSize, format, args); |
| 580 | SkASSERT(length >= 0 && length < SkToInt(kBufferSize)); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 581 | |
joshualitt | 976386b | 2014-10-23 18:23:32 -0700 | [diff] [blame] | 582 | this->append(buffer, length); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 583 | } |
| 584 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 585 | void SkString::prependf(const char format[], ...) { |
| 586 | char buffer[kBufferSize]; |
joshualitt | 976386b | 2014-10-23 18:23:32 -0700 | [diff] [blame] | 587 | int length; |
| 588 | ARGS_TO_BUFFER(format, buffer, kBufferSize, length); |
reed@google.com | fa06e52 | 2011-02-28 21:29:58 +0000 | [diff] [blame] | 589 | |
joshualitt | 976386b | 2014-10-23 18:23:32 -0700 | [diff] [blame] | 590 | this->prepend(buffer, length); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 591 | } |
| 592 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 593 | void SkString::prependVAList(const char format[], va_list args) { |
| 594 | char buffer[kBufferSize]; |
joshualitt | 976386b | 2014-10-23 18:23:32 -0700 | [diff] [blame] | 595 | int length = VSNPRINTF(buffer, kBufferSize, format, args); |
| 596 | SkASSERT(length >= 0 && length < SkToInt(kBufferSize)); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 597 | |
joshualitt | 976386b | 2014-10-23 18:23:32 -0700 | [diff] [blame] | 598 | this->prepend(buffer, length); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 599 | } |
| 600 | |
| 601 | |
reed@google.com | fa06e52 | 2011-02-28 21:29:58 +0000 | [diff] [blame] | 602 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 603 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 604 | void SkString::remove(size_t offset, size_t length) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 605 | size_t size = this->size(); |
| 606 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 607 | if (offset < size) { |
bungeman | dfb9bc4 | 2014-08-11 07:19:56 -0700 | [diff] [blame] | 608 | if (length > size - offset) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 609 | length = size - offset; |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 610 | } |
bungeman | dfb9bc4 | 2014-08-11 07:19:56 -0700 | [diff] [blame] | 611 | SkASSERT(length <= size); |
| 612 | SkASSERT(offset <= size - length); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 613 | if (length > 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 614 | SkString tmp(size - length); |
| 615 | char* dst = tmp.writable_str(); |
| 616 | const char* src = this->c_str(); |
| 617 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 618 | if (offset) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 619 | memcpy(dst, src, offset); |
| 620 | } |
bungeman | dfb9bc4 | 2014-08-11 07:19:56 -0700 | [diff] [blame] | 621 | size_t tail = size - (offset + length); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 622 | if (tail) { |
bungeman | dfb9bc4 | 2014-08-11 07:19:56 -0700 | [diff] [blame] | 623 | memcpy(dst + offset, src + (offset + length), tail); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 624 | } |
| 625 | SkASSERT(dst[tmp.size()] == 0); |
| 626 | this->swap(tmp); |
| 627 | } |
| 628 | } |
| 629 | } |
| 630 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 631 | void SkString::swap(SkString& other) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 632 | this->validate(); |
| 633 | other.validate(); |
| 634 | |
| 635 | SkTSwap<Rec*>(fRec, other.fRec); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 636 | } |
| 637 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 638 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 639 | |
tomhudson@google.com | 3a1f6a0 | 2011-06-30 14:39:52 +0000 | [diff] [blame] | 640 | SkString SkStringPrintf(const char* format, ...) { |
| 641 | SkString formattedOutput; |
halcanary | d51bdae | 2016-04-25 09:25:35 -0700 | [diff] [blame] | 642 | V_SKSTRING_PRINTF(formattedOutput, format); |
tomhudson@google.com | 3a1f6a0 | 2011-06-30 14:39:52 +0000 | [diff] [blame] | 643 | return formattedOutput; |
| 644 | } |
| 645 | |
kkinnunen | 3e980c3 | 2015-12-23 01:33:00 -0800 | [diff] [blame] | 646 | void SkStrSplit(const char* str, const char* delimiters, SkStrSplitMode splitMode, |
| 647 | SkTArray<SkString>* out) { |
| 648 | if (splitMode == kCoalesce_SkStrSplitMode) { |
rmistry | 0f515bd | 2015-12-22 10:22:26 -0800 | [diff] [blame] | 649 | // Skip any delimiters. |
| 650 | str += strspn(str, delimiters); |
kkinnunen | 9ebc3f0 | 2015-12-21 23:48:13 -0800 | [diff] [blame] | 651 | } |
kkinnunen | 3e980c3 | 2015-12-23 01:33:00 -0800 | [diff] [blame] | 652 | if (!*str) { |
| 653 | return; |
| 654 | } |
| 655 | |
| 656 | while (true) { |
| 657 | // Find a token. |
| 658 | const size_t len = strcspn(str, delimiters); |
| 659 | if (splitMode == kStrict_SkStrSplitMode || len > 0) { |
| 660 | out->push_back().set(str, len); |
| 661 | str += len; |
| 662 | } |
| 663 | |
| 664 | if (!*str) { |
| 665 | return; |
| 666 | } |
| 667 | if (splitMode == kCoalesce_SkStrSplitMode) { |
| 668 | // Skip any delimiters. |
| 669 | str += strspn(str, delimiters); |
| 670 | } else { |
| 671 | // Skip one delimiter. |
| 672 | str += 1; |
| 673 | } |
| 674 | } |
rmistry@google.com | d6bab02 | 2013-12-02 13:50:38 +0000 | [diff] [blame] | 675 | } |
| 676 | |
tomhudson@google.com | 3a1f6a0 | 2011-06-30 14:39:52 +0000 | [diff] [blame] | 677 | #undef VSNPRINTF |
tomhudson@google.com | 47e0a09 | 2011-07-08 17:49:22 +0000 | [diff] [blame] | 678 | #undef SNPRINTF |