Shinichiro Hamaji | 1d545aa | 2015-06-23 15:29:13 +0900 | [diff] [blame] | 1 | // Copyright 2015 Google Inc. All rights reserved |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | // you may not use this file except in compliance with the License. |
| 5 | // You may obtain a copy of the License at |
| 6 | // |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | // See the License for the specific language governing permissions and |
| 13 | // limitations under the License. |
| 14 | |
Fumitoshi Ukai | 744bb2b | 2015-06-25 00:10:52 +0900 | [diff] [blame] | 15 | // +build ignore |
| 16 | |
Shinichiro Hamaji | 776ca30 | 2015-06-06 03:52:48 +0900 | [diff] [blame] | 17 | #include "strutil.h" |
| 18 | |
| 19 | #include <ctype.h> |
Shinichiro Hamaji | 8a96358 | 2015-06-18 07:05:58 +0900 | [diff] [blame] | 20 | #include <limits.h> |
Shinichiro Hamaji | 8a96358 | 2015-06-18 07:05:58 +0900 | [diff] [blame] | 21 | #include <unistd.h> |
Shinichiro Hamaji | 776ca30 | 2015-06-06 03:52:48 +0900 | [diff] [blame] | 22 | |
Shinichiro Hamaji | c9b0aca | 2015-07-31 16:47:56 +0900 | [diff] [blame] | 23 | #include <algorithm> |
Shinichiro Hamaji | eafd052 | 2015-06-18 16:46:02 +0900 | [diff] [blame] | 24 | #include <stack> |
Shinichiro Hamaji | 776ca30 | 2015-06-06 03:52:48 +0900 | [diff] [blame] | 25 | #include <utility> |
| 26 | |
Shinichiro Hamaji | 8a96358 | 2015-06-18 07:05:58 +0900 | [diff] [blame] | 27 | #include "log.h" |
| 28 | |
Shinichiro Hamaji | 776ca30 | 2015-06-06 03:52:48 +0900 | [diff] [blame] | 29 | WordScanner::Iterator& WordScanner::Iterator::operator++() { |
| 30 | int len = static_cast<int>(in->size()); |
| 31 | for (s = i; s < len; s++) { |
| 32 | if (!isspace((*in)[s])) |
| 33 | break; |
| 34 | } |
| 35 | if (s == len) { |
| 36 | in = NULL; |
| 37 | s = 0; |
| 38 | i = 0; |
| 39 | return *this; |
| 40 | } |
| 41 | for (i = s; i < len; i++) { |
Shinichiro Hamaji | 63e68fc | 2015-06-16 17:36:53 +0900 | [diff] [blame] | 42 | if (isspace((*in)[i])) |
Shinichiro Hamaji | 776ca30 | 2015-06-06 03:52:48 +0900 | [diff] [blame] | 43 | break; |
| 44 | } |
| 45 | return *this; |
| 46 | } |
| 47 | |
| 48 | StringPiece WordScanner::Iterator::operator*() const { |
Shinichiro Hamaji | 63e68fc | 2015-06-16 17:36:53 +0900 | [diff] [blame] | 49 | return in->substr(s, i - s); |
Shinichiro Hamaji | 776ca30 | 2015-06-06 03:52:48 +0900 | [diff] [blame] | 50 | } |
| 51 | |
| 52 | WordScanner::WordScanner(StringPiece in) |
| 53 | : in_(in) { |
| 54 | } |
| 55 | |
| 56 | WordScanner::Iterator WordScanner::begin() const { |
| 57 | Iterator iter; |
| 58 | iter.in = &in_; |
| 59 | iter.s = 0; |
| 60 | iter.i = 0; |
| 61 | ++iter; |
| 62 | return iter; |
| 63 | } |
| 64 | |
| 65 | WordScanner::Iterator WordScanner::end() const { |
| 66 | Iterator iter; |
| 67 | iter.in = NULL; |
| 68 | iter.s = 0; |
| 69 | iter.i = 0; |
| 70 | return iter; |
| 71 | } |
| 72 | |
Shinichiro Hamaji | d87e59e | 2015-06-17 18:18:34 +0900 | [diff] [blame] | 73 | void WordScanner::Split(vector<StringPiece>* o) { |
| 74 | for (StringPiece t : *this) |
| 75 | o->push_back(t); |
| 76 | } |
| 77 | |
Shinichiro Hamaji | 2e6cbfc | 2015-06-16 18:46:50 +0900 | [diff] [blame] | 78 | WordWriter::WordWriter(string* o) |
| 79 | : out_(o), |
| 80 | needs_space_(false) { |
| 81 | } |
| 82 | |
Shinichiro Hamaji | 37591ce | 2015-06-16 19:36:05 +0900 | [diff] [blame] | 83 | void WordWriter::MaybeAddWhitespace() { |
Shinichiro Hamaji | 5e26e22 | 2015-06-16 19:38:47 +0900 | [diff] [blame] | 84 | if (needs_space_) { |
Shinichiro Hamaji | 2e6cbfc | 2015-06-16 18:46:50 +0900 | [diff] [blame] | 85 | out_->push_back(' '); |
| 86 | } else { |
| 87 | needs_space_ = true; |
| 88 | } |
Shinichiro Hamaji | 37591ce | 2015-06-16 19:36:05 +0900 | [diff] [blame] | 89 | } |
| 90 | |
| 91 | void WordWriter::Write(StringPiece s) { |
| 92 | MaybeAddWhitespace(); |
Shinichiro Hamaji | 2e6cbfc | 2015-06-16 18:46:50 +0900 | [diff] [blame] | 93 | AppendString(s, out_); |
| 94 | } |
| 95 | |
Shinichiro Hamaji | 8f68bd3 | 2015-06-18 11:01:51 +0900 | [diff] [blame] | 96 | ScopedTerminator::ScopedTerminator(StringPiece s) |
| 97 | : s_(s), c_(s[s.size()]) { |
| 98 | const_cast<char*>(s_.data())[s_.size()] = '\0'; |
| 99 | } |
| 100 | |
| 101 | ScopedTerminator::~ScopedTerminator() { |
| 102 | const_cast<char*>(s_.data())[s_.size()] = c_; |
| 103 | } |
| 104 | |
Shinichiro Hamaji | 02fc55b | 2015-06-16 17:19:07 +0900 | [diff] [blame] | 105 | void AppendString(StringPiece str, string* out) { |
| 106 | out->append(str.begin(), str.end()); |
| 107 | } |
| 108 | |
| 109 | bool HasPrefix(StringPiece str, StringPiece prefix) { |
| 110 | ssize_t size_diff = str.size() - prefix.size(); |
Shinichiro Hamaji | f91d682 | 2015-06-16 17:51:23 +0900 | [diff] [blame] | 111 | return size_diff >= 0 && str.substr(0, prefix.size()) == prefix; |
Shinichiro Hamaji | 02fc55b | 2015-06-16 17:19:07 +0900 | [diff] [blame] | 112 | } |
| 113 | |
| 114 | bool HasSuffix(StringPiece str, StringPiece suffix) { |
| 115 | ssize_t size_diff = str.size() - suffix.size(); |
| 116 | return size_diff >= 0 && str.substr(size_diff) == suffix; |
| 117 | } |
| 118 | |
Shinichiro Hamaji | c9b0aca | 2015-07-31 16:47:56 +0900 | [diff] [blame] | 119 | bool HasWord(StringPiece str, StringPiece w) { |
| 120 | size_t found = str.find(w); |
| 121 | if (found == string::npos) |
| 122 | return false; |
| 123 | if (found != 0 && !isspace(str[found-1])) |
| 124 | return false; |
| 125 | size_t end = found + w.size(); |
| 126 | if (end != str.size() && !isspace(str[end])) |
| 127 | return false; |
| 128 | return true; |
| 129 | } |
| 130 | |
Shinichiro Hamaji | 02fc55b | 2015-06-16 17:19:07 +0900 | [diff] [blame] | 131 | StringPiece TrimSuffix(StringPiece str, StringPiece suffix) { |
| 132 | ssize_t size_diff = str.size() - suffix.size(); |
| 133 | if (size_diff < 0 || str.substr(size_diff) != suffix) |
| 134 | return str; |
| 135 | return str.substr(0, size_diff); |
| 136 | } |
| 137 | |
Shinichiro Hamaji | a6a17a4 | 2015-06-18 20:11:19 +0900 | [diff] [blame] | 138 | Pattern::Pattern(StringPiece pat) |
| 139 | : pat_(pat), percent_index_(pat.find('%')) { |
| 140 | } |
| 141 | |
| 142 | bool Pattern::Match(StringPiece str) const { |
| 143 | if (percent_index_ == string::npos) |
| 144 | return str == pat_; |
| 145 | return MatchImpl(str); |
| 146 | } |
| 147 | |
| 148 | bool Pattern::MatchImpl(StringPiece str) const { |
| 149 | return (HasPrefix(str, pat_.substr(0, percent_index_)) && |
| 150 | HasSuffix(str, pat_.substr(percent_index_ + 1))); |
| 151 | } |
| 152 | |
| 153 | void Pattern::AppendSubst(StringPiece str, StringPiece subst, |
| 154 | string* out) const { |
| 155 | if (percent_index_ == string::npos) { |
| 156 | if (str == pat_) { |
Shinichiro Hamaji | 02fc55b | 2015-06-16 17:19:07 +0900 | [diff] [blame] | 157 | AppendString(subst, out); |
| 158 | return; |
| 159 | } else { |
| 160 | AppendString(str, out); |
| 161 | return; |
| 162 | } |
| 163 | } |
| 164 | |
Shinichiro Hamaji | a6a17a4 | 2015-06-18 20:11:19 +0900 | [diff] [blame] | 165 | if (MatchImpl(str)) { |
Shinichiro Hamaji | 02fc55b | 2015-06-16 17:19:07 +0900 | [diff] [blame] | 166 | size_t subst_percent_index = subst.find('%'); |
| 167 | if (subst_percent_index == string::npos) { |
| 168 | AppendString(subst, out); |
| 169 | return; |
| 170 | } else { |
| 171 | AppendString(subst.substr(0, subst_percent_index), out); |
Shinichiro Hamaji | a6a17a4 | 2015-06-18 20:11:19 +0900 | [diff] [blame] | 172 | AppendString(str.substr(percent_index_, |
| 173 | str.size() - pat_.size() + 1), out); |
Shinichiro Hamaji | 02fc55b | 2015-06-16 17:19:07 +0900 | [diff] [blame] | 174 | AppendString(subst.substr(subst_percent_index + 1), out); |
| 175 | return; |
| 176 | } |
| 177 | } |
| 178 | AppendString(str, out); |
| 179 | } |
| 180 | |
Shinichiro Hamaji | a6a17a4 | 2015-06-18 20:11:19 +0900 | [diff] [blame] | 181 | void Pattern::AppendSubstRef(StringPiece str, StringPiece subst, |
| 182 | string* out) const { |
| 183 | if (percent_index_ != string::npos && subst.find('%') != string::npos) { |
| 184 | AppendSubst(str, subst, out); |
Shinichiro Hamaji | f91d682 | 2015-06-16 17:51:23 +0900 | [diff] [blame] | 185 | return; |
| 186 | } |
Shinichiro Hamaji | a6a17a4 | 2015-06-18 20:11:19 +0900 | [diff] [blame] | 187 | StringPiece s = TrimSuffix(str, pat_); |
Shinichiro Hamaji | 02fc55b | 2015-06-16 17:19:07 +0900 | [diff] [blame] | 188 | out->append(s.begin(), s.end()); |
| 189 | out->append(subst.begin(), subst.end()); |
| 190 | } |
Shinichiro Hamaji | 810fd03 | 2015-06-17 04:38:03 +0900 | [diff] [blame] | 191 | |
| 192 | string NoLineBreak(const string& s) { |
| 193 | size_t index = s.find('\n'); |
| 194 | if (index == string::npos) |
| 195 | return s; |
| 196 | string r = s; |
| 197 | while (index != string::npos) { |
Shinichiro Hamaji | 2b674c4 | 2015-06-24 17:49:35 +0900 | [diff] [blame] | 198 | r = r.substr(0, index) + "\\n" + r.substr(index + 1); |
| 199 | index = r.find('\n', index + 2); |
Shinichiro Hamaji | 810fd03 | 2015-06-17 04:38:03 +0900 | [diff] [blame] | 200 | } |
| 201 | return r; |
| 202 | } |
Shinichiro Hamaji | 3275062 | 2015-06-17 14:57:33 +0900 | [diff] [blame] | 203 | |
| 204 | StringPiece TrimLeftSpace(StringPiece s) { |
| 205 | size_t i = 0; |
Shinichiro Hamaji | 47898a8 | 2015-06-19 16:45:33 +0900 | [diff] [blame] | 206 | for (; i < s.size(); i++) { |
| 207 | if (isspace(s[i])) |
| 208 | continue; |
| 209 | char n = s.get(i+1); |
| 210 | if (s[i] == '\\' && (n == '\r' || n == '\n')) { |
| 211 | i++; |
| 212 | continue; |
| 213 | } |
| 214 | break; |
| 215 | } |
Shinichiro Hamaji | 3275062 | 2015-06-17 14:57:33 +0900 | [diff] [blame] | 216 | return s.substr(i, s.size() - i); |
| 217 | } |
| 218 | |
| 219 | StringPiece TrimRightSpace(StringPiece s) { |
| 220 | size_t i = 0; |
Shinichiro Hamaji | 47898a8 | 2015-06-19 16:45:33 +0900 | [diff] [blame] | 221 | for (; i < s.size(); i++) { |
| 222 | char c = s[s.size() - 1 - i]; |
| 223 | if (isspace(c)) { |
| 224 | if ((c == '\r' || c == '\n') && s.get(s.size() - 2 - i) == '\\') |
| 225 | i++; |
| 226 | continue; |
| 227 | } |
| 228 | break; |
| 229 | } |
Shinichiro Hamaji | 3275062 | 2015-06-17 14:57:33 +0900 | [diff] [blame] | 230 | return s.substr(0, s.size() - i); |
| 231 | } |
| 232 | |
| 233 | StringPiece TrimSpace(StringPiece s) { |
| 234 | return TrimRightSpace(TrimLeftSpace(s)); |
| 235 | } |
Shinichiro Hamaji | 67f9a70 | 2015-06-18 06:00:57 +0900 | [diff] [blame] | 236 | |
| 237 | StringPiece Dirname(StringPiece s) { |
| 238 | size_t found = s.rfind('/'); |
| 239 | if (found == string::npos) |
Shinichiro Hamaji | 388e858 | 2015-07-03 16:51:46 +0900 | [diff] [blame] | 240 | return StringPiece("."); |
Shinichiro Hamaji | 67f9a70 | 2015-06-18 06:00:57 +0900 | [diff] [blame] | 241 | if (found == 0) |
Shinichiro Hamaji | 388e858 | 2015-07-03 16:51:46 +0900 | [diff] [blame] | 242 | return StringPiece(""); |
Shinichiro Hamaji | 67f9a70 | 2015-06-18 06:00:57 +0900 | [diff] [blame] | 243 | return s.substr(0, found); |
| 244 | } |
| 245 | |
| 246 | StringPiece Basename(StringPiece s) { |
| 247 | size_t found = s.rfind('/'); |
| 248 | if (found == string::npos || found == 0) |
| 249 | return s; |
| 250 | return s.substr(found + 1); |
| 251 | } |
| 252 | |
| 253 | StringPiece GetExt(StringPiece s) { |
| 254 | size_t found = s.rfind('.'); |
| 255 | if (found == string::npos) |
Shinichiro Hamaji | 388e858 | 2015-07-03 16:51:46 +0900 | [diff] [blame] | 256 | return StringPiece(""); |
Shinichiro Hamaji | 67f9a70 | 2015-06-18 06:00:57 +0900 | [diff] [blame] | 257 | return s.substr(found); |
| 258 | } |
| 259 | |
| 260 | StringPiece StripExt(StringPiece s) { |
| 261 | size_t slash_index = s.rfind('/'); |
| 262 | size_t found = s.rfind('.'); |
| 263 | if (found == string::npos || |
| 264 | (slash_index != string::npos && found < slash_index)) |
| 265 | return s; |
| 266 | return s.substr(0, found); |
| 267 | } |
Shinichiro Hamaji | 8a96358 | 2015-06-18 07:05:58 +0900 | [diff] [blame] | 268 | |
Shinichiro Hamaji | b3591ed | 2015-08-10 20:06:50 +0900 | [diff] [blame] | 269 | void NormalizePath(string* o) { |
| 270 | if (o->empty()) |
| 271 | return; |
| 272 | size_t start_index = 0; |
| 273 | if ((*o)[0] == '/') |
| 274 | start_index++; |
Shinichiro Hamaji | 5f57a99 | 2015-06-30 19:39:39 +0900 | [diff] [blame] | 275 | size_t j = start_index; |
| 276 | size_t prev_start = start_index; |
| 277 | for (size_t i = start_index; i <= o->size(); i++) { |
| 278 | char c = (*o)[i]; |
| 279 | if (c != '/' && c != 0) { |
| 280 | (*o)[j] = c; |
| 281 | j++; |
| 282 | continue; |
| 283 | } |
| 284 | |
| 285 | StringPiece prev_dir = StringPiece(o->data() + prev_start, j - prev_start); |
| 286 | if (prev_dir == ".") { |
| 287 | j--; |
Shinichiro Hamaji | b3591ed | 2015-08-10 20:06:50 +0900 | [diff] [blame] | 288 | } else if (prev_dir == ".." && j != 2 /* .. */) { |
| 289 | if (j == 3) { |
| 290 | // /.. |
Shinichiro Hamaji | 5f57a99 | 2015-06-30 19:39:39 +0900 | [diff] [blame] | 291 | j = start_index; |
| 292 | } else { |
Shinichiro Hamaji | b3591ed | 2015-08-10 20:06:50 +0900 | [diff] [blame] | 293 | j -= 4; |
| 294 | j = o->rfind('/', j); |
| 295 | if (j == string::npos) { |
| 296 | j = start_index; |
| 297 | } else { |
| 298 | j++; |
| 299 | } |
Shinichiro Hamaji | 5f57a99 | 2015-06-30 19:39:39 +0900 | [diff] [blame] | 300 | } |
| 301 | } else if (!prev_dir.empty()) { |
| 302 | if (c) { |
| 303 | (*o)[j] = c; |
| 304 | j++; |
| 305 | } |
| 306 | } |
| 307 | prev_start = j; |
| 308 | } |
| 309 | if (j > 1 && (*o)[j-1] == '/') |
| 310 | j--; |
| 311 | o->resize(j); |
| 312 | } |
| 313 | |
Shinichiro Hamaji | 8a96358 | 2015-06-18 07:05:58 +0900 | [diff] [blame] | 314 | void AbsPath(StringPiece s, string* o) { |
| 315 | if (s.get(0) == '/') { |
| 316 | o->clear(); |
| 317 | } else { |
| 318 | char buf[PATH_MAX]; |
| 319 | if (!getcwd(buf, PATH_MAX)) { |
| 320 | fprintf(stderr, "getcwd failed\n"); |
| 321 | CHECK(false); |
| 322 | } |
| 323 | |
| 324 | CHECK(buf[0] == '/'); |
| 325 | *o = buf; |
| 326 | *o += '/'; |
| 327 | } |
| 328 | AppendString(s, o); |
Shinichiro Hamaji | b3591ed | 2015-08-10 20:06:50 +0900 | [diff] [blame] | 329 | NormalizePath(o); |
Shinichiro Hamaji | 8a96358 | 2015-06-18 07:05:58 +0900 | [diff] [blame] | 330 | } |
Shinichiro Hamaji | eafd052 | 2015-06-18 16:46:02 +0900 | [diff] [blame] | 331 | |
| 332 | template<typename Cond> |
| 333 | size_t FindOutsideParenImpl(StringPiece s, Cond cond) { |
| 334 | bool prev_backslash = false; |
| 335 | stack<char> paren_stack; |
| 336 | for (size_t i = 0; i < s.size(); i++) { |
| 337 | char c = s[i]; |
| 338 | if (cond(c) && paren_stack.empty() && !prev_backslash) { |
| 339 | return i; |
| 340 | } |
| 341 | switch (c) { |
| 342 | case '(': |
| 343 | paren_stack.push(')'); |
| 344 | break; |
| 345 | case '{': |
| 346 | paren_stack.push('}'); |
| 347 | break; |
| 348 | |
| 349 | case ')': |
| 350 | case '}': |
| 351 | if (!paren_stack.empty() && c == paren_stack.top()) { |
| 352 | paren_stack.pop(); |
| 353 | } |
| 354 | break; |
| 355 | } |
| 356 | prev_backslash = c == '\\' && !prev_backslash; |
| 357 | } |
| 358 | return string::npos; |
| 359 | } |
| 360 | |
| 361 | size_t FindOutsideParen(StringPiece s, char c) { |
| 362 | return FindOutsideParenImpl(s, [&c](char d){return c == d;}); |
| 363 | } |
| 364 | |
Shinichiro Hamaji | 76ff983 | 2015-06-18 17:11:22 +0900 | [diff] [blame] | 365 | size_t FindTwoOutsideParen(StringPiece s, char c1, char c2) { |
| 366 | return FindOutsideParenImpl(s, [&c1, &c2](char d){ |
| 367 | return d == c1 || d == c2; |
| 368 | }); |
Shinichiro Hamaji | eafd052 | 2015-06-18 16:46:02 +0900 | [diff] [blame] | 369 | } |
Shinichiro Hamaji | 14bb279 | 2015-06-25 18:24:11 +0900 | [diff] [blame] | 370 | |
Shinichiro Hamaji | 415a9b1 | 2015-07-05 14:33:02 +0900 | [diff] [blame] | 371 | size_t FindThreeOutsideParen(StringPiece s, char c1, char c2, char c3) { |
| 372 | return FindOutsideParenImpl(s, [&c1, &c2, &c3](char d){ |
| 373 | return d == c1 || d == c2 || d == c3; |
| 374 | }); |
| 375 | } |
| 376 | |
Shinichiro Hamaji | 14bb279 | 2015-06-25 18:24:11 +0900 | [diff] [blame] | 377 | size_t FindEndOfLine(StringPiece s, size_t e, size_t* lf_cnt) { |
| 378 | bool prev_backslash = false; |
| 379 | for (; e < s.size(); e++) { |
| 380 | char c = s[e]; |
| 381 | if (c == '\\') { |
| 382 | prev_backslash = !prev_backslash; |
| 383 | } else if (c == '\n') { |
| 384 | ++*lf_cnt; |
| 385 | if (!prev_backslash) { |
| 386 | return e; |
| 387 | } |
Shinichiro Hamaji | 0f9cd97 | 2015-06-26 08:20:45 +0900 | [diff] [blame] | 388 | prev_backslash = false; |
Shinichiro Hamaji | 14bb279 | 2015-06-25 18:24:11 +0900 | [diff] [blame] | 389 | } else if (c != '\r') { |
| 390 | prev_backslash = false; |
| 391 | } |
| 392 | } |
| 393 | return e; |
| 394 | } |
Shinichiro Hamaji | d953332 | 2015-06-27 05:48:38 +0900 | [diff] [blame] | 395 | |
| 396 | StringPiece TrimLeadingCurdir(StringPiece s) { |
| 397 | while (s.substr(0, 2) == "./") |
| 398 | s = s.substr(2); |
| 399 | return s; |
| 400 | } |
Shinichiro Hamaji | c9b0aca | 2015-07-31 16:47:56 +0900 | [diff] [blame] | 401 | |
| 402 | void FormatForCommandSubstitution(string* s) { |
| 403 | while ((*s)[s->size()-1] == '\n') |
| 404 | s->pop_back(); |
| 405 | for (size_t i = 0; i < s->size(); i++) { |
| 406 | if ((*s)[i] == '\n') |
| 407 | (*s)[i] = ' '; |
| 408 | } |
| 409 | } |
| 410 | |
| 411 | string SortWordsInString(StringPiece s) { |
| 412 | vector<string> toks; |
| 413 | for (StringPiece tok : WordScanner(s)) { |
| 414 | toks.push_back(tok.as_string()); |
| 415 | } |
| 416 | sort(toks.begin(), toks.end()); |
| 417 | return JoinStrings(toks, " "); |
| 418 | } |
Shinichiro Hamaji | 5a71a8b | 2015-08-06 19:23:18 +0900 | [diff] [blame] | 419 | |
| 420 | string ConcatDir(StringPiece b, StringPiece n) { |
| 421 | string r; |
| 422 | if (!b.empty()) { |
| 423 | b.AppendToString(&r); |
| 424 | r += '/'; |
| 425 | } |
| 426 | n.AppendToString(&r); |
| 427 | NormalizePath(&r); |
| 428 | return r; |
| 429 | } |
Dan Willemsen | e6f6858 | 2015-08-21 11:13:28 -0700 | [diff] [blame] | 430 | |
| 431 | string EchoEscape(const string str) { |
| 432 | const char *in = str.c_str(); |
| 433 | string buf; |
| 434 | for (; *in; in++) { |
| 435 | switch(*in) { |
| 436 | case '\\': |
| 437 | buf += "\\\\\\\\"; |
| 438 | break; |
| 439 | case '\n': |
| 440 | buf += "\\n"; |
| 441 | break; |
| 442 | case '"': |
| 443 | buf += "\\\""; |
| 444 | break; |
| 445 | default: |
| 446 | buf += *in; |
| 447 | } |
| 448 | } |
| 449 | return buf; |
| 450 | } |