The Android Open Source Project | 10e23ee | 2009-03-03 19:30:30 -0800 | [diff] [blame^] | 1 | /** |
| 2 | * @file op_string.h |
| 3 | * general purpose C string handling declarations. |
| 4 | * |
| 5 | * @remark Copyright 2003 OProfile authors |
| 6 | * @remark Read the file COPYING |
| 7 | * |
| 8 | * @author John Levon |
| 9 | * @author Philippe Elie |
| 10 | */ |
| 11 | |
| 12 | #ifndef OP_STRING_H |
| 13 | #define OP_STRING_H |
| 14 | |
| 15 | #include <string.h> |
| 16 | |
| 17 | #ifdef __cplusplus |
| 18 | extern "C" { |
| 19 | #endif |
| 20 | |
| 21 | /** |
| 22 | * @param s: input string |
| 23 | * @param len: len char to copy |
| 24 | * |
| 25 | * Allocate and copy len character from s to a newly allocated buffer then |
| 26 | * append a '\0' terminator. Return the newly allocated string |
| 27 | */ |
| 28 | char * op_xstrndup(char const * s, size_t len); |
| 29 | |
| 30 | /** |
| 31 | * @param s: string to hash |
| 32 | * |
| 33 | * Generate a hash code from a string |
| 34 | */ |
| 35 | size_t op_hash_string(char const * s); |
| 36 | |
| 37 | /** |
| 38 | * @param str: string to test |
| 39 | * @param prefix: prefix string |
| 40 | * |
| 41 | * return non zero if prefix parameters is a prefix of str |
| 42 | */ |
| 43 | int strisprefix(char const * str, char const * prefix); |
| 44 | |
| 45 | /** |
| 46 | * @param c: input string |
| 47 | * |
| 48 | * return a pointer to the first location in c which is not a blank space |
| 49 | * where blank space are in " \t\n" |
| 50 | */ |
| 51 | char const * skip_ws(char const * c); |
| 52 | |
| 53 | /** |
| 54 | * @param c: input string |
| 55 | * |
| 56 | * return a pointer to the first location in c which is a blank space |
| 57 | * where blank space are in " \t\n" |
| 58 | */ |
| 59 | char const * skip_nonws(char const * c); |
| 60 | |
| 61 | /** |
| 62 | * @param c: input string |
| 63 | * |
| 64 | * return non zero if c string contains only blank space |
| 65 | * where blank space are in " \t\n" |
| 66 | */ |
| 67 | int empty_line(char const * c); |
| 68 | |
| 69 | /** |
| 70 | * @param c: input string |
| 71 | * |
| 72 | * return non zero if c string is a comment. Comment are lines with optional |
| 73 | * blank space at left then a '#' character. Blank space are in " \t\n" |
| 74 | */ |
| 75 | int comment_line(char const * c); |
| 76 | |
| 77 | #ifdef __cplusplus |
| 78 | } |
| 79 | #endif |
| 80 | |
| 81 | #endif /* !OP_STRING_H */ |