1 // Copyright 2014 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are
4 // met:
5 //
6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided
11 // with the distribution.
12 // * Neither the name of Google Inc. nor the names of its
13 // contributors may be used to endorse or promote products derived
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15 //
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28 // Utility functions used by parser-shell and lexer-shell.
29
30 #include <stdio.h>
31
32 namespace v8 {
33 namespace internal {
34
35 enum Encoding {
36 LATIN1,
37 UTF8,
38 UTF16
39 };
40
ReadFileAndRepeat(const char * name,int * size,int repeat)41 const byte* ReadFileAndRepeat(const char* name, int* size, int repeat) {
42 FILE* file = fopen(name, "rb");
43 *size = 0;
44 if (file == NULL) return NULL;
45
46 fseek(file, 0, SEEK_END);
47 int file_size = ftell(file);
48 rewind(file);
49
50 *size = file_size * repeat;
51
52 byte* chars = new byte[*size + 1];
53 for (int i = 0; i < file_size;) {
54 int read = static_cast<int>(fread(&chars[i], 1, file_size - i, file));
55 i += read;
56 }
57 fclose(file);
58
59 for (int i = file_size; i < *size; i++) {
60 chars[i] = chars[i - file_size];
61 }
62 chars[*size] = 0;
63
64 return chars;
65 }
66
67 } } // namespace v8::internal
68