| 0,0 → 1,101 |
|---|
| /* |
| FUNCTION |
| <<strtok>>, <<strtok_r>>, <<strsep>>---get next token from a string |
| |
| INDEX |
| strtok |
| |
| INDEX |
| strtok_r |
| |
| INDEX |
| strsep |
| |
| ANSI_SYNOPSIS |
| #include <string.h> |
| char *strtok(char *<[source]>, const char *<[delimiters]>) |
| char *strtok_r(char *<[source]>, const char *<[delimiters]>, |
| char **<[lasts]>) |
| char *strsep(char **<[source_ptr]>, const char *<[delimiters]>) |
| |
| TRAD_SYNOPSIS |
| #include <string.h> |
| char *strtok(<[source]>, <[delimiters]>) |
| char *<[source]>; |
| char *<[delimiters]>; |
| |
| char *strtok_r(<[source]>, <[delimiters]>, <[lasts]>) |
| char *<[source]>; |
| char *<[delimiters]>; |
| char **<[lasts]>; |
| |
| char *strsep(<[source_ptr]>, <[delimiters]>) |
| char **<[source_ptr]>; |
| char *<[delimiters]>; |
| |
| DESCRIPTION |
| The <<strtok>> function is used to isolate sequential tokens in a |
| null-terminated string, <<*<[source]>>>. These tokens are delimited |
| in the string by at least one of the characters in <<*<[delimiters]>>>. |
| The first time that <<strtok>> is called, <<*<[source]>>> should be |
| specified; subsequent calls, wishing to obtain further tokens from |
| the same string, should pass a null pointer instead. The separator |
| string, <<*<[delimiters]>>>, must be supplied each time and may |
| change between calls. |
| |
| The <<strtok>> function returns a pointer to the beginning of each |
| subsequent token in the string, after replacing the separator |
| character itself with a null character. When no more tokens remain, |
| a null pointer is returned. |
| |
| The <<strtok_r>> function has the same behavior as <<strtok>>, except |
| a pointer to placeholder <<*<[lasts]>>> must be supplied by the caller. |
| |
| The <<strsep>> function is similar in behavior to <<strtok>>, except |
| a pointer to the string pointer must be supplied <<<[source_ptr]>>> and |
| the function does not skip leading delimiters. When the string starts |
| with a delimiter, the delimiter is changed to the null character and |
| the empty string is returned. Like <<strtok_r>> and <<strtok>>, the |
| <<*<[source_ptr]>>> is updated to the next character following the |
| last delimiter found or NULL if the end of string is reached with |
| no more delimiters. |
| |
| RETURNS |
| <<strtok>>, <<strtok_r>>, and <<strsep>> all return a pointer to the |
| next token, or <<NULL>> if no more tokens can be found. For |
| <<strsep>>, a token may be the empty string. |
| |
| NOTES |
| <<strtok>> is unsafe for multi-threaded applications. <<strtok_r>> |
| and <<strsep>> are thread-safe and should be used instead. |
| |
| PORTABILITY |
| <<strtok>> is ANSI C. |
| <<strtok_r>> is POSIX. |
| <<strsep>> is a BSD extension. |
| |
| <<strtok>>, <<strtok_r>>, and <<strsep>> require no supporting OS subroutines. |
| |
| QUICKREF |
| strtok ansi impure |
| */ |
| |
| /* undef STRICT_ANSI so that strtok_r prototype will be defined */ |
| #undef __STRICT_ANSI__ |
| #include <string.h> |
| #include <_ansi.h> |
| #include <reent.h> |
| |
| #ifndef _REENT_ONLY |
| |
| extern char *__strtok_r (char *, const char *, char **, int); |
| |
| char * |
| _DEFUN (strtok, (s, delim), |
| register char *s _AND |
| register const char *delim) |
| { |
| _REENT_CHECK_MISC(_REENT); |
| return __strtok_r (s, delim, &(_REENT_STRTOK_LAST(_REENT)), 1); |
| } |
| #endif |