epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | |
| 2 | /* |
| 3 | * Copyright 2006 The Android Open Source Project |
| 4 | * |
| 5 | * Use of this source code is governed by a BSD-style license that can be |
| 6 | * found in the LICENSE file. |
| 7 | */ |
| 8 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 9 | |
herb | b906daf | 2015-09-29 09:37:59 -0700 | [diff] [blame] | 10 | #include "SkAtomics.h" |
jvanverth | 02802f6 | 2015-07-02 06:42:49 -0700 | [diff] [blame] | 11 | #include "SkFixed.h" |
mtklein | 1b24933 | 2015-07-07 12:21:21 -0700 | [diff] [blame] | 12 | #include "SkString.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 13 | #include "SkUtils.h" |
| 14 | #include <stdarg.h> |
reed@google.com | fa06e52 | 2011-02-28 21:29:58 +0000 | [diff] [blame] | 15 | #include <stdio.h> |
| 16 | |
| 17 | // number of bytes (on the stack) to receive the printf result |
bsalomon@google.com | 77cf460 | 2013-04-22 21:05:48 +0000 | [diff] [blame] | 18 | static const size_t kBufferSize = 1024; |
reed@google.com | fa06e52 | 2011-02-28 21:29:58 +0000 | [diff] [blame] | 19 | |
| 20 | #ifdef SK_BUILD_FOR_WIN |
tomhudson@google.com | 47e0a09 | 2011-07-08 17:49:22 +0000 | [diff] [blame] | 21 | #define VSNPRINTF(buffer, size, format, args) \ |
| 22 | _vsnprintf_s(buffer, size, _TRUNCATE, format, args) |
reed@google.com | fa06e52 | 2011-02-28 21:29:58 +0000 | [diff] [blame] | 23 | #define SNPRINTF _snprintf |
| 24 | #else |
| 25 | #define VSNPRINTF vsnprintf |
| 26 | #define SNPRINTF snprintf |
| 27 | #endif |
| 28 | |
joshualitt | 976386b | 2014-10-23 18:23:32 -0700 | [diff] [blame] | 29 | #define ARGS_TO_BUFFER(format, buffer, size, written) \ |
| 30 | do { \ |
| 31 | va_list args; \ |
| 32 | va_start(args, format); \ |
| 33 | written = VSNPRINTF(buffer, size, format, args); \ |
| 34 | SkASSERT(written >= 0 && written < SkToInt(size)); \ |
| 35 | va_end(args); \ |
reed@google.com | fa06e52 | 2011-02-28 21:29:58 +0000 | [diff] [blame] | 36 | } while (0) |
| 37 | |
| 38 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 39 | |
epoger@google.com | e8ebeb1 | 2012-10-29 16:42:11 +0000 | [diff] [blame] | 40 | bool SkStrEndsWith(const char string[], const char suffixStr[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 41 | SkASSERT(string); |
epoger@google.com | e8ebeb1 | 2012-10-29 16:42:11 +0000 | [diff] [blame] | 42 | SkASSERT(suffixStr); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 43 | size_t strLen = strlen(string); |
epoger@google.com | e8ebeb1 | 2012-10-29 16:42:11 +0000 | [diff] [blame] | 44 | size_t suffixLen = strlen(suffixStr); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 45 | return strLen >= suffixLen && |
epoger@google.com | e8ebeb1 | 2012-10-29 16:42:11 +0000 | [diff] [blame] | 46 | !strncmp(string + strLen - suffixLen, suffixStr, suffixLen); |
| 47 | } |
| 48 | |
| 49 | bool SkStrEndsWith(const char string[], const char suffixChar) { |
| 50 | SkASSERT(string); |
| 51 | size_t strLen = strlen(string); |
| 52 | if (0 == strLen) { |
| 53 | return false; |
| 54 | } else { |
| 55 | return (suffixChar == string[strLen-1]); |
| 56 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 57 | } |
| 58 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 59 | int SkStrStartsWithOneOf(const char string[], const char prefixes[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 60 | int index = 0; |
| 61 | do { |
| 62 | const char* limit = strchr(prefixes, '\0'); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 63 | if (!strncmp(string, prefixes, limit - prefixes)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 64 | return index; |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 65 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 66 | prefixes = limit + 1; |
| 67 | index++; |
| 68 | } while (prefixes[0]); |
| 69 | return -1; |
| 70 | } |
| 71 | |
epoger@google.com | d88a3d8 | 2013-06-19 18:27:20 +0000 | [diff] [blame] | 72 | char* SkStrAppendU32(char string[], uint32_t dec) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 73 | SkDEBUGCODE(char* start = string;) |
| 74 | |
epoger@google.com | d88a3d8 | 2013-06-19 18:27:20 +0000 | [diff] [blame] | 75 | char buffer[SkStrAppendU32_MaxSize]; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 76 | char* p = buffer + sizeof(buffer); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 77 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 78 | do { |
| 79 | *--p = SkToU8('0' + dec % 10); |
| 80 | dec /= 10; |
| 81 | } while (dec != 0); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 82 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 83 | SkASSERT(p >= buffer); |
| 84 | char* stop = buffer + sizeof(buffer); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 85 | while (p < stop) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 86 | *string++ = *p++; |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 87 | } |
epoger@google.com | d88a3d8 | 2013-06-19 18:27:20 +0000 | [diff] [blame] | 88 | SkASSERT(string - start <= SkStrAppendU32_MaxSize); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 89 | return string; |
| 90 | } |
| 91 | |
epoger@google.com | d88a3d8 | 2013-06-19 18:27:20 +0000 | [diff] [blame] | 92 | char* SkStrAppendS32(char string[], int32_t dec) { |
mtklein | 225fb98 | 2014-11-05 11:35:21 -0800 | [diff] [blame] | 93 | uint32_t udec = dec; |
vandebo@chromium.org | d877fdb | 2010-10-12 23:08:13 +0000 | [diff] [blame] | 94 | if (dec < 0) { |
epoger@google.com | d88a3d8 | 2013-06-19 18:27:20 +0000 | [diff] [blame] | 95 | *string++ = '-'; |
mtklein | 225fb98 | 2014-11-05 11:35:21 -0800 | [diff] [blame] | 96 | 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] | 97 | } |
mtklein | 225fb98 | 2014-11-05 11:35:21 -0800 | [diff] [blame] | 98 | return SkStrAppendU32(string, udec); |
epoger@google.com | d88a3d8 | 2013-06-19 18:27:20 +0000 | [diff] [blame] | 99 | } |
| 100 | |
| 101 | char* SkStrAppendU64(char string[], uint64_t dec, int minDigits) { |
| 102 | SkDEBUGCODE(char* start = string;) |
| 103 | |
| 104 | char buffer[SkStrAppendU64_MaxSize]; |
| 105 | char* p = buffer + sizeof(buffer); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 106 | |
vandebo@chromium.org | d877fdb | 2010-10-12 23:08:13 +0000 | [diff] [blame] | 107 | do { |
caryclark@google.com | 803eceb | 2012-06-06 12:09:34 +0000 | [diff] [blame] | 108 | *--p = SkToU8('0' + (int32_t) (dec % 10)); |
vandebo@chromium.org | d877fdb | 2010-10-12 23:08:13 +0000 | [diff] [blame] | 109 | dec /= 10; |
| 110 | minDigits--; |
| 111 | } while (dec != 0); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 112 | |
vandebo@chromium.org | d877fdb | 2010-10-12 23:08:13 +0000 | [diff] [blame] | 113 | while (minDigits > 0) { |
| 114 | *--p = '0'; |
| 115 | minDigits--; |
| 116 | } |
vandebo@chromium.org | d877fdb | 2010-10-12 23:08:13 +0000 | [diff] [blame] | 117 | |
| 118 | SkASSERT(p >= buffer); |
| 119 | size_t cp_len = buffer + sizeof(buffer) - p; |
| 120 | memcpy(string, p, cp_len); |
| 121 | string += cp_len; |
| 122 | |
epoger@google.com | d88a3d8 | 2013-06-19 18:27:20 +0000 | [diff] [blame] | 123 | SkASSERT(string - start <= SkStrAppendU64_MaxSize); |
vandebo@chromium.org | d877fdb | 2010-10-12 23:08:13 +0000 | [diff] [blame] | 124 | return string; |
| 125 | } |
| 126 | |
epoger@google.com | d88a3d8 | 2013-06-19 18:27:20 +0000 | [diff] [blame] | 127 | char* SkStrAppendS64(char string[], int64_t dec, int minDigits) { |
mtklein | 225fb98 | 2014-11-05 11:35:21 -0800 | [diff] [blame] | 128 | uint64_t udec = dec; |
epoger@google.com | d88a3d8 | 2013-06-19 18:27:20 +0000 | [diff] [blame] | 129 | if (dec < 0) { |
| 130 | *string++ = '-'; |
mtklein | 225fb98 | 2014-11-05 11:35:21 -0800 | [diff] [blame] | 131 | 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] | 132 | } |
mtklein | 225fb98 | 2014-11-05 11:35:21 -0800 | [diff] [blame] | 133 | return SkStrAppendU64(string, udec, minDigits); |
epoger@google.com | d88a3d8 | 2013-06-19 18:27:20 +0000 | [diff] [blame] | 134 | } |
| 135 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 136 | char* SkStrAppendFloat(char string[], float value) { |
reed@google.com | 8072e4f | 2011-03-01 15:44:08 +0000 | [diff] [blame] | 137 | // since floats have at most 8 significant digits, we limit our %g to that. |
| 138 | static const char gFormat[] = "%.8g"; |
| 139 | // make it 1 larger for the terminating 0 |
| 140 | char buffer[SkStrAppendScalar_MaxSize + 1]; |
| 141 | int len = SNPRINTF(buffer, sizeof(buffer), gFormat, value); |
| 142 | memcpy(string, buffer, len); |
vandebo@chromium.org | 677cbed | 2011-03-03 18:20:12 +0000 | [diff] [blame] | 143 | SkASSERT(len <= SkStrAppendScalar_MaxSize); |
reed@google.com | 8072e4f | 2011-03-01 15:44:08 +0000 | [diff] [blame] | 144 | return string + len; |
vandebo@chromium.org | 677cbed | 2011-03-03 18:20:12 +0000 | [diff] [blame] | 145 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 146 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 147 | char* SkStrAppendFixed(char string[], SkFixed x) { |
vandebo@chromium.org | 677cbed | 2011-03-03 18:20:12 +0000 | [diff] [blame] | 148 | SkDEBUGCODE(char* start = string;) |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 149 | if (x < 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 150 | *string++ = '-'; |
| 151 | x = -x; |
| 152 | } |
| 153 | |
| 154 | unsigned frac = x & 0xFFFF; |
| 155 | x >>= 16; |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 156 | if (frac == 0xFFFF) { |
| 157 | // need to do this to "round up", since 65535/65536 is closer to 1 than to .9999 |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 158 | x += 1; |
| 159 | frac = 0; |
| 160 | } |
| 161 | string = SkStrAppendS32(string, x); |
| 162 | |
| 163 | // now handle the fractional part (if any) |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 164 | if (frac) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 165 | static const uint16_t gTens[] = { 1000, 100, 10, 1 }; |
| 166 | const uint16_t* tens = gTens; |
| 167 | |
mike@reedtribe.org | 9fb0041 | 2014-01-06 03:02:37 +0000 | [diff] [blame] | 168 | x = SkFixedRoundToInt(frac * 10000); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 169 | SkASSERT(x <= 10000); |
| 170 | if (x == 10000) { |
| 171 | x -= 1; |
| 172 | } |
| 173 | *string++ = '.'; |
| 174 | do { |
| 175 | unsigned powerOfTen = *tens++; |
| 176 | *string++ = SkToU8('0' + x / powerOfTen); |
| 177 | x %= powerOfTen; |
| 178 | } while (x != 0); |
| 179 | } |
reed@google.com | fa06e52 | 2011-02-28 21:29:58 +0000 | [diff] [blame] | 180 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 181 | SkASSERT(string - start <= SkStrAppendScalar_MaxSize); |
| 182 | return string; |
| 183 | } |
| 184 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 185 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 186 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 187 | // the 3 values are [length] [refcnt] [terminating zero data] |
| 188 | const SkString::Rec SkString::gEmptyRec = { 0, 0, 0 }; |
| 189 | |
| 190 | #define SizeOfRec() (gEmptyRec.data() - (const char*)&gEmptyRec) |
| 191 | |
reed@google.com | 8cb1088 | 2013-06-04 20:36:52 +0000 | [diff] [blame] | 192 | static uint32_t trim_size_t_to_u32(size_t value) { |
| 193 | if (sizeof(size_t) > sizeof(uint32_t)) { |
| 194 | if (value > SK_MaxU32) { |
| 195 | value = SK_MaxU32; |
| 196 | } |
| 197 | } |
| 198 | return (uint32_t)value; |
| 199 | } |
| 200 | |
| 201 | static size_t check_add32(size_t base, size_t extra) { |
| 202 | SkASSERT(base <= SK_MaxU32); |
| 203 | if (sizeof(size_t) > sizeof(uint32_t)) { |
| 204 | if (base + extra > SK_MaxU32) { |
| 205 | extra = SK_MaxU32 - base; |
| 206 | } |
| 207 | } |
| 208 | return extra; |
| 209 | } |
| 210 | |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 211 | SkString::Rec* SkString::AllocRec(const char text[], size_t len) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 212 | Rec* rec; |
| 213 | |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 214 | if (0 == len) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 215 | rec = const_cast<Rec*>(&gEmptyRec); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 216 | } else { |
reed@google.com | 8cb1088 | 2013-06-04 20:36:52 +0000 | [diff] [blame] | 217 | len = trim_size_t_to_u32(len); |
| 218 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 219 | // add 1 for terminating 0, then align4 so we can have some slop when growing the string |
| 220 | rec = (Rec*)sk_malloc_throw(SizeOfRec() + SkAlign4(len + 1)); |
reed@google.com | 8cb1088 | 2013-06-04 20:36:52 +0000 | [diff] [blame] | 221 | rec->fLength = SkToU32(len); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 222 | rec->fRefCnt = 1; |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 223 | if (text) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 224 | memcpy(rec->data(), text, len); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 225 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 226 | rec->data()[len] = 0; |
| 227 | } |
| 228 | return rec; |
| 229 | } |
| 230 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 231 | SkString::Rec* SkString::RefRec(Rec* src) { |
| 232 | if (src != &gEmptyRec) { |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 233 | sk_atomic_inc(&src->fRefCnt); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 234 | } |
| 235 | return src; |
| 236 | } |
| 237 | |
| 238 | #ifdef SK_DEBUG |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 239 | void SkString::validate() const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 240 | // make sure know one has written over our global |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 241 | SkASSERT(0 == gEmptyRec.fLength); |
| 242 | SkASSERT(0 == gEmptyRec.fRefCnt); |
| 243 | SkASSERT(0 == gEmptyRec.data()[0]); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 244 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 245 | if (fRec != &gEmptyRec) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 246 | SkASSERT(fRec->fLength > 0); |
| 247 | SkASSERT(fRec->fRefCnt > 0); |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 248 | SkASSERT(0 == fRec->data()[fRec->fLength]); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 249 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 250 | } |
| 251 | #endif |
| 252 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 253 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 254 | |
| 255 | SkString::SkString() : fRec(const_cast<Rec*>(&gEmptyRec)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 256 | } |
| 257 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 258 | SkString::SkString(size_t len) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 259 | fRec = AllocRec(nullptr, len); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 260 | } |
| 261 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 262 | SkString::SkString(const char text[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 263 | size_t len = text ? strlen(text) : 0; |
| 264 | |
bsalomon@google.com | 8686be2 | 2013-05-13 18:48:40 +0000 | [diff] [blame] | 265 | fRec = AllocRec(text, len); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 266 | } |
| 267 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 268 | SkString::SkString(const char text[], size_t len) { |
bsalomon@google.com | 8686be2 | 2013-05-13 18:48:40 +0000 | [diff] [blame] | 269 | fRec = AllocRec(text, len); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 270 | } |
| 271 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 272 | SkString::SkString(const SkString& src) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 273 | src.validate(); |
| 274 | |
| 275 | fRec = RefRec(src.fRec); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 276 | } |
| 277 | |
bungeman | 9d55297 | 2016-02-07 18:42:54 -0800 | [diff] [blame^] | 278 | SkString::SkString(SkString&& src) { |
| 279 | src.validate(); |
| 280 | |
| 281 | fRec = src.fRec; |
| 282 | src.fRec = const_cast<Rec*>(&gEmptyRec); |
| 283 | } |
| 284 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 285 | SkString::~SkString() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 286 | this->validate(); |
| 287 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 288 | if (fRec->fLength) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 289 | SkASSERT(fRec->fRefCnt > 0); |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 290 | if (sk_atomic_dec(&fRec->fRefCnt) == 1) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 291 | sk_free(fRec); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 292 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 293 | } |
| 294 | } |
| 295 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 296 | bool SkString::equals(const SkString& src) const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 297 | return fRec == src.fRec || this->equals(src.c_str(), src.size()); |
| 298 | } |
| 299 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 300 | bool SkString::equals(const char text[]) const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 301 | return this->equals(text, text ? strlen(text) : 0); |
| 302 | } |
| 303 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 304 | bool SkString::equals(const char text[], size_t len) const { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 305 | SkASSERT(len == 0 || text != nullptr); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 306 | |
| 307 | return fRec->fLength == len && !memcmp(fRec->data(), text, len); |
| 308 | } |
| 309 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 310 | SkString& SkString::operator=(const SkString& src) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 311 | this->validate(); |
| 312 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 313 | if (fRec != src.fRec) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 314 | SkString tmp(src); |
| 315 | this->swap(tmp); |
| 316 | } |
| 317 | return *this; |
| 318 | } |
| 319 | |
bungeman | 9d55297 | 2016-02-07 18:42:54 -0800 | [diff] [blame^] | 320 | SkString& SkString::operator=(SkString&& src) { |
| 321 | this->validate(); |
| 322 | |
| 323 | if (fRec != src.fRec) { |
| 324 | this->swap(src); |
| 325 | } |
| 326 | return *this; |
| 327 | } |
| 328 | |
bsalomon@google.com | fc29629 | 2011-05-06 13:53:47 +0000 | [diff] [blame] | 329 | SkString& SkString::operator=(const char text[]) { |
| 330 | this->validate(); |
| 331 | |
| 332 | SkString tmp(text); |
| 333 | this->swap(tmp); |
| 334 | |
| 335 | return *this; |
| 336 | } |
| 337 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 338 | void SkString::reset() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 339 | this->validate(); |
| 340 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 341 | if (fRec->fLength) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 342 | SkASSERT(fRec->fRefCnt > 0); |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 343 | if (sk_atomic_dec(&fRec->fRefCnt) == 1) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 344 | sk_free(fRec); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 345 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 346 | } |
| 347 | |
| 348 | fRec = const_cast<Rec*>(&gEmptyRec); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 349 | } |
| 350 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 351 | char* SkString::writable_str() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 352 | this->validate(); |
| 353 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 354 | if (fRec->fLength) { |
| 355 | if (fRec->fRefCnt > 1) { |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 356 | Rec* rec = AllocRec(fRec->data(), fRec->fLength); |
| 357 | if (sk_atomic_dec(&fRec->fRefCnt) == 1) { |
| 358 | // In this case after our check of fRecCnt > 1, we suddenly |
| 359 | // did become the only owner, so now we have two copies of the |
| 360 | // data (fRec and rec), so we need to delete one of them. |
| 361 | sk_free(fRec); |
| 362 | } |
| 363 | fRec = rec; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 364 | } |
| 365 | } |
| 366 | return fRec->data(); |
| 367 | } |
| 368 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 369 | void SkString::set(const char text[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 370 | this->set(text, text ? strlen(text) : 0); |
| 371 | } |
| 372 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 373 | void SkString::set(const char text[], size_t len) { |
reed@google.com | 8cb1088 | 2013-06-04 20:36:52 +0000 | [diff] [blame] | 374 | len = trim_size_t_to_u32(len); |
| 375 | |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 376 | if (0 == len) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 377 | this->reset(); |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 378 | } else if (1 == fRec->fRefCnt && len <= fRec->fLength) { |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 379 | // 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] | 380 | // just use less of the buffer without allocating a smaller one |
| 381 | char* p = this->writable_str(); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 382 | if (text) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 383 | memcpy(p, text, len); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 384 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 385 | p[len] = 0; |
reed@google.com | 8cb1088 | 2013-06-04 20:36:52 +0000 | [diff] [blame] | 386 | fRec->fLength = SkToU32(len); |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 387 | } else if (1 == fRec->fRefCnt && (fRec->fLength >> 2) == (len >> 2)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 388 | // we have spare room in the current allocation, so don't alloc a larger one |
| 389 | char* p = this->writable_str(); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 390 | if (text) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 391 | memcpy(p, text, len); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 392 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 393 | p[len] = 0; |
reed@google.com | 8cb1088 | 2013-06-04 20:36:52 +0000 | [diff] [blame] | 394 | fRec->fLength = SkToU32(len); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 395 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 396 | SkString tmp(text, len); |
| 397 | this->swap(tmp); |
| 398 | } |
| 399 | } |
| 400 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 401 | void SkString::setUTF16(const uint16_t src[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 402 | int count = 0; |
| 403 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 404 | while (src[count]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 405 | count += 1; |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 406 | } |
reed@google.com | 8cb1088 | 2013-06-04 20:36:52 +0000 | [diff] [blame] | 407 | this->setUTF16(src, count); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 408 | } |
| 409 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 410 | void SkString::setUTF16(const uint16_t src[], size_t count) { |
reed@google.com | 8cb1088 | 2013-06-04 20:36:52 +0000 | [diff] [blame] | 411 | count = trim_size_t_to_u32(count); |
| 412 | |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 413 | if (0 == count) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 414 | this->reset(); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 415 | } else if (count <= fRec->fLength) { |
| 416 | // should we resize if len <<<< fLength, to save RAM? (e.g. len < (fLength>>1)) |
| 417 | if (count < fRec->fLength) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 418 | this->resize(count); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 419 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 420 | char* p = this->writable_str(); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 421 | for (size_t i = 0; i < count; i++) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 422 | p[i] = SkToU8(src[i]); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 423 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 424 | p[count] = 0; |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 425 | } else { |
| 426 | SkString tmp(count); // puts a null terminator at the end of the string |
| 427 | char* p = tmp.writable_str(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 428 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 429 | for (size_t i = 0; i < count; i++) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 430 | p[i] = SkToU8(src[i]); |
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 | this->swap(tmp); |
| 433 | } |
| 434 | } |
| 435 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 436 | void SkString::insert(size_t offset, const char text[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 437 | this->insert(offset, text, text ? strlen(text) : 0); |
| 438 | } |
| 439 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 440 | void SkString::insert(size_t offset, const char text[], size_t len) { |
| 441 | if (len) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 442 | size_t length = fRec->fLength; |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 443 | if (offset > length) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 444 | offset = length; |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 445 | } |
skia.committer@gmail.com | 8f6ef40 | 2013-06-05 07:01:06 +0000 | [diff] [blame] | 446 | |
reed@google.com | 8cb1088 | 2013-06-04 20:36:52 +0000 | [diff] [blame] | 447 | // Check if length + len exceeds 32bits, we trim len |
| 448 | len = check_add32(length, len); |
| 449 | if (0 == len) { |
| 450 | return; |
| 451 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 452 | |
| 453 | /* If we're the only owner, and we have room in our allocation for the insert, |
| 454 | do it in place, rather than allocating a new buffer. |
| 455 | |
| 456 | To know we have room, compare the allocated sizes |
| 457 | beforeAlloc = SkAlign4(length + 1) |
| 458 | afterAlloc = SkAligh4(length + 1 + len) |
| 459 | but SkAlign4(x) is (x + 3) >> 2 << 2 |
| 460 | which is equivalent for testing to (length + 1 + 3) >> 2 == (length + 1 + 3 + len) >> 2 |
| 461 | and we can then eliminate the +1+3 since that doesn't affec the answer |
| 462 | */ |
reed@google.com | 4bce115 | 2011-09-14 16:13:58 +0000 | [diff] [blame] | 463 | if (1 == fRec->fRefCnt && (length >> 2) == ((length + len) >> 2)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 464 | char* dst = this->writable_str(); |
| 465 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 466 | if (offset < length) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 467 | memmove(dst + offset + len, dst + offset, length - offset); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 468 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 469 | memcpy(dst + offset, text, len); |
| 470 | |
| 471 | dst[length + len] = 0; |
reed@google.com | 8cb1088 | 2013-06-04 20:36:52 +0000 | [diff] [blame] | 472 | fRec->fLength = SkToU32(length + len); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 473 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 474 | /* Seems we should use realloc here, since that is safe if it fails |
| 475 | (we have the original data), and might be faster than alloc/copy/free. |
| 476 | */ |
| 477 | SkString tmp(fRec->fLength + len); |
| 478 | char* dst = tmp.writable_str(); |
| 479 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 480 | if (offset > 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 481 | memcpy(dst, fRec->data(), offset); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 482 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 483 | memcpy(dst + offset, text, len); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 484 | if (offset < fRec->fLength) { |
| 485 | memcpy(dst + offset + len, fRec->data() + offset, |
| 486 | fRec->fLength - offset); |
| 487 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 488 | |
| 489 | this->swap(tmp); |
| 490 | } |
| 491 | } |
| 492 | } |
| 493 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 494 | void SkString::insertUnichar(size_t offset, SkUnichar uni) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 495 | char buffer[kMaxBytesInUTF8Sequence]; |
| 496 | size_t len = SkUTF8_FromUnichar(uni, buffer); |
| 497 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 498 | if (len) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 499 | this->insert(offset, buffer, len); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 500 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 501 | } |
| 502 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 503 | void SkString::insertS32(size_t offset, int32_t dec) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 504 | char buffer[SkStrAppendS32_MaxSize]; |
| 505 | char* stop = SkStrAppendS32(buffer, dec); |
| 506 | this->insert(offset, buffer, stop - buffer); |
| 507 | } |
| 508 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 509 | void SkString::insertS64(size_t offset, int64_t dec, int minDigits) { |
vandebo@chromium.org | d877fdb | 2010-10-12 23:08:13 +0000 | [diff] [blame] | 510 | char buffer[SkStrAppendS64_MaxSize]; |
| 511 | char* stop = SkStrAppendS64(buffer, dec, minDigits); |
| 512 | this->insert(offset, buffer, stop - buffer); |
| 513 | } |
| 514 | |
epoger@google.com | d88a3d8 | 2013-06-19 18:27:20 +0000 | [diff] [blame] | 515 | void SkString::insertU32(size_t offset, uint32_t dec) { |
| 516 | char buffer[SkStrAppendU32_MaxSize]; |
| 517 | char* stop = SkStrAppendU32(buffer, dec); |
| 518 | this->insert(offset, buffer, stop - buffer); |
| 519 | } |
| 520 | |
| 521 | void SkString::insertU64(size_t offset, uint64_t dec, int minDigits) { |
| 522 | char buffer[SkStrAppendU64_MaxSize]; |
| 523 | char* stop = SkStrAppendU64(buffer, dec, minDigits); |
| 524 | this->insert(offset, buffer, stop - buffer); |
| 525 | } |
| 526 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 527 | void SkString::insertHex(size_t offset, uint32_t hex, int minDigits) { |
bungeman | 62ce030 | 2015-08-28 09:09:32 -0700 | [diff] [blame] | 528 | minDigits = SkTPin(minDigits, 0, 8); |
reed@google.com | fa06e52 | 2011-02-28 21:29:58 +0000 | [diff] [blame] | 529 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 530 | static const char gHex[] = "0123456789ABCDEF"; |
| 531 | |
| 532 | char buffer[8]; |
| 533 | char* p = buffer + sizeof(buffer); |
| 534 | |
| 535 | do { |
| 536 | *--p = gHex[hex & 0xF]; |
| 537 | hex >>= 4; |
| 538 | minDigits -= 1; |
| 539 | } while (hex != 0); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 540 | |
| 541 | while (--minDigits >= 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 542 | *--p = '0'; |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 543 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 544 | |
| 545 | SkASSERT(p >= buffer); |
| 546 | this->insert(offset, p, buffer + sizeof(buffer) - p); |
| 547 | } |
| 548 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 549 | void SkString::insertScalar(size_t offset, SkScalar value) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 550 | char buffer[SkStrAppendScalar_MaxSize]; |
| 551 | char* stop = SkStrAppendScalar(buffer, value); |
| 552 | this->insert(offset, buffer, stop - buffer); |
| 553 | } |
| 554 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 555 | void SkString::printf(const char format[], ...) { |
| 556 | char buffer[kBufferSize]; |
joshualitt | 976386b | 2014-10-23 18:23:32 -0700 | [diff] [blame] | 557 | int length; |
| 558 | ARGS_TO_BUFFER(format, buffer, kBufferSize, length); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 559 | |
joshualitt | 976386b | 2014-10-23 18:23:32 -0700 | [diff] [blame] | 560 | this->set(buffer, length); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 561 | } |
| 562 | |
| 563 | void SkString::appendf(const char format[], ...) { |
| 564 | char buffer[kBufferSize]; |
joshualitt | 976386b | 2014-10-23 18:23:32 -0700 | [diff] [blame] | 565 | int length; |
| 566 | ARGS_TO_BUFFER(format, buffer, kBufferSize, length); |
reed@google.com | fa06e52 | 2011-02-28 21:29:58 +0000 | [diff] [blame] | 567 | |
joshualitt | 976386b | 2014-10-23 18:23:32 -0700 | [diff] [blame] | 568 | this->append(buffer, length); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 569 | } |
| 570 | |
commit-bot@chromium.org | ce0e4ef | 2013-11-21 17:20:17 +0000 | [diff] [blame] | 571 | void SkString::appendVAList(const char format[], va_list args) { |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 572 | char buffer[kBufferSize]; |
joshualitt | 976386b | 2014-10-23 18:23:32 -0700 | [diff] [blame] | 573 | int length = VSNPRINTF(buffer, kBufferSize, format, args); |
| 574 | SkASSERT(length >= 0 && length < SkToInt(kBufferSize)); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 575 | |
joshualitt | 976386b | 2014-10-23 18:23:32 -0700 | [diff] [blame] | 576 | this->append(buffer, length); |
bsalomon@google.com | f910d3b | 2013-03-07 17:06:57 +0000 | [diff] [blame] | 577 | } |
| 578 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 579 | void SkString::prependf(const char format[], ...) { |
| 580 | char buffer[kBufferSize]; |
joshualitt | 976386b | 2014-10-23 18:23:32 -0700 | [diff] [blame] | 581 | int length; |
| 582 | ARGS_TO_BUFFER(format, buffer, kBufferSize, length); |
reed@google.com | fa06e52 | 2011-02-28 21:29:58 +0000 | [diff] [blame] | 583 | |
joshualitt | 976386b | 2014-10-23 18:23:32 -0700 | [diff] [blame] | 584 | this->prepend(buffer, length); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 585 | } |
| 586 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 587 | void SkString::prependVAList(const char format[], va_list args) { |
| 588 | char buffer[kBufferSize]; |
joshualitt | 976386b | 2014-10-23 18:23:32 -0700 | [diff] [blame] | 589 | int length = VSNPRINTF(buffer, kBufferSize, format, args); |
| 590 | SkASSERT(length >= 0 && length < SkToInt(kBufferSize)); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 591 | |
joshualitt | 976386b | 2014-10-23 18:23:32 -0700 | [diff] [blame] | 592 | this->prepend(buffer, length); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 593 | } |
| 594 | |
| 595 | |
reed@google.com | fa06e52 | 2011-02-28 21:29:58 +0000 | [diff] [blame] | 596 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 597 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 598 | void SkString::remove(size_t offset, size_t length) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 599 | size_t size = this->size(); |
| 600 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 601 | if (offset < size) { |
bungeman | dfb9bc4 | 2014-08-11 07:19:56 -0700 | [diff] [blame] | 602 | if (length > size - offset) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 603 | length = size - offset; |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 604 | } |
bungeman | dfb9bc4 | 2014-08-11 07:19:56 -0700 | [diff] [blame] | 605 | SkASSERT(length <= size); |
| 606 | SkASSERT(offset <= size - length); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 607 | if (length > 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 608 | SkString tmp(size - length); |
| 609 | char* dst = tmp.writable_str(); |
| 610 | const char* src = this->c_str(); |
| 611 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 612 | if (offset) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 613 | memcpy(dst, src, offset); |
| 614 | } |
bungeman | dfb9bc4 | 2014-08-11 07:19:56 -0700 | [diff] [blame] | 615 | size_t tail = size - (offset + length); |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 616 | if (tail) { |
bungeman | dfb9bc4 | 2014-08-11 07:19:56 -0700 | [diff] [blame] | 617 | memcpy(dst + offset, src + (offset + length), tail); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 618 | } |
| 619 | SkASSERT(dst[tmp.size()] == 0); |
| 620 | this->swap(tmp); |
| 621 | } |
| 622 | } |
| 623 | } |
| 624 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 625 | void SkString::swap(SkString& other) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 626 | this->validate(); |
| 627 | other.validate(); |
| 628 | |
| 629 | SkTSwap<Rec*>(fRec, other.fRec); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 630 | } |
| 631 | |
mike@reedtribe.org | 4e1d3ac | 2011-04-10 01:04:37 +0000 | [diff] [blame] | 632 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 633 | |
tomhudson@google.com | 3a1f6a0 | 2011-06-30 14:39:52 +0000 | [diff] [blame] | 634 | SkString SkStringPrintf(const char* format, ...) { |
| 635 | SkString formattedOutput; |
| 636 | char buffer[kBufferSize]; |
joshualitt | 976386b | 2014-10-23 18:23:32 -0700 | [diff] [blame] | 637 | SK_UNUSED int length; |
| 638 | ARGS_TO_BUFFER(format, buffer, kBufferSize, length); |
tomhudson@google.com | 3a1f6a0 | 2011-06-30 14:39:52 +0000 | [diff] [blame] | 639 | formattedOutput.set(buffer); |
| 640 | return formattedOutput; |
| 641 | } |
| 642 | |
kkinnunen | 3e980c3 | 2015-12-23 01:33:00 -0800 | [diff] [blame] | 643 | void SkStrSplit(const char* str, const char* delimiters, SkStrSplitMode splitMode, |
| 644 | SkTArray<SkString>* out) { |
| 645 | if (splitMode == kCoalesce_SkStrSplitMode) { |
rmistry | 0f515bd | 2015-12-22 10:22:26 -0800 | [diff] [blame] | 646 | // Skip any delimiters. |
| 647 | str += strspn(str, delimiters); |
kkinnunen | 9ebc3f0 | 2015-12-21 23:48:13 -0800 | [diff] [blame] | 648 | } |
kkinnunen | 3e980c3 | 2015-12-23 01:33:00 -0800 | [diff] [blame] | 649 | if (!*str) { |
| 650 | return; |
| 651 | } |
| 652 | |
| 653 | while (true) { |
| 654 | // Find a token. |
| 655 | const size_t len = strcspn(str, delimiters); |
| 656 | if (splitMode == kStrict_SkStrSplitMode || len > 0) { |
| 657 | out->push_back().set(str, len); |
| 658 | str += len; |
| 659 | } |
| 660 | |
| 661 | if (!*str) { |
| 662 | return; |
| 663 | } |
| 664 | if (splitMode == kCoalesce_SkStrSplitMode) { |
| 665 | // Skip any delimiters. |
| 666 | str += strspn(str, delimiters); |
| 667 | } else { |
| 668 | // Skip one delimiter. |
| 669 | str += 1; |
| 670 | } |
| 671 | } |
rmistry@google.com | d6bab02 | 2013-12-02 13:50:38 +0000 | [diff] [blame] | 672 | } |
| 673 | |
tomhudson@google.com | 3a1f6a0 | 2011-06-30 14:39:52 +0000 | [diff] [blame] | 674 | #undef VSNPRINTF |
tomhudson@google.com | 47e0a09 | 2011-07-08 17:49:22 +0000 | [diff] [blame] | 675 | #undef SNPRINTF |