/*
 * kmp_str.h -- String manipulation routines.
 */


//===----------------------------------------------------------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.txt for details.
//
//===----------------------------------------------------------------------===//


#ifndef KMP_STR_H
#define KMP_STR_H

#include <string.h>
#include <stdarg.h>

#include "kmp_os.h"

#ifdef __cplusplus
    extern "C" {
#endif // __cplusplus

#if KMP_OS_WINDOWS
# define strdup    _strdup
#endif

/*  some macros to replace ctype.h functions  */
#define TOLOWER(c)	((((c) >= 'A') && ((c) <= 'Z')) ? ((c) + 'a' - 'A') : (c))

struct kmp_str_buf {
    char       * str;         // Pointer to buffer content, read only.
    unsigned int size;        // Do not change this field!
    int          used;        // Number of characters printed to buffer, read only.
    char         bulk[ 512 ]; // Do not use this field!
}; // struct kmp_str_buf
typedef struct kmp_str_buf  kmp_str_buf_t;

#define __kmp_str_buf_init( b )   { (b)->str = (b)->bulk; (b)->size = sizeof( (b)->bulk ); (b)->used = 0; (b)->bulk[ 0 ] = 0; }

void   __kmp_str_buf_clear( kmp_str_buf_t * buffer );
void   __kmp_str_buf_reserve( kmp_str_buf_t * buffer, int size );
void   __kmp_str_buf_detach( kmp_str_buf_t * buffer );
void   __kmp_str_buf_free( kmp_str_buf_t * buffer );
void   __kmp_str_buf_cat( kmp_str_buf_t * buffer, char const * str, int len );
void   __kmp_str_buf_vprint( kmp_str_buf_t * buffer, char const * format, va_list args );
void   __kmp_str_buf_print( kmp_str_buf_t * buffer, char const * format, ... );
void   __kmp_str_buf_print_size( kmp_str_buf_t * buffer, size_t size );

/*
    File name parser. Usage:

        kmp_str_fname_t fname = __kmp_str_fname_init( path );
        // Use fname.path (copy of original path ), fname.dir, fname.base.
        // Note fname.dir concatenated with fname.base gives exact copy of path.
        __kmp_str_fname_free( & fname );

*/
struct kmp_str_fname {
    char * path;
    char * dir;
    char * base;
}; // struct kmp_str_fname
typedef struct kmp_str_fname kmp_str_fname_t;
void __kmp_str_fname_init( kmp_str_fname_t * fname, char const * path );
void __kmp_str_fname_free( kmp_str_fname_t * fname );
// Compares file name with specified patern. If pattern is NULL, any fname matched.
int __kmp_str_fname_match( kmp_str_fname_t const * fname, char const * pattern );

/*
    The compiler provides source locations in string form ";file;func;line;col;;". It not not
    convenient for manupulation. These structure keeps source location in more convenient form.
    Usage:

        kmp_str_loc_t loc = __kmp_str_loc_init( ident->psource, 0 );
        // use loc.file, loc.func, loc.line, loc.col.
        // loc.fname is available if the second argument of __kmp_str_loc_init is true.
        __kmp_str_loc_free( & loc );

    If psource is NULL or does not follow format above, file and/or func may be NULL pointers.
*/
struct kmp_str_loc {
    char *          _bulk;  // Do not use thid field.
    kmp_str_fname_t fname;  // Will be initialized if init_fname is true.
    char *          file;
    char *          func;
    int             line;
    int             col;
}; // struct kmp_str_loc
typedef struct kmp_str_loc kmp_str_loc_t;
kmp_str_loc_t __kmp_str_loc_init( char const * psource, int init_fname );
void __kmp_str_loc_free( kmp_str_loc_t * loc );

int    __kmp_str_eqf( char const * lhs, char const * rhs );
char * __kmp_str_format( char const * format, ... );
void   __kmp_str_free( char const * * str );
int    __kmp_str_match( char const * target, int len, char const * data );
int    __kmp_str_match_false( char const * data );
int    __kmp_str_match_true( char const * data );
void   __kmp_str_replace( char * str, char search_for, char replace_with );
void   __kmp_str_split( char * str, char delim, char ** head, char ** tail );
char * __kmp_str_token( char * str, char const * delim, char ** buf );
int    __kmp_str_to_int( char const * str, char sentinel );

void __kmp_str_to_size( char const * str, size_t * out, size_t dfactor, char const * * error );
void __kmp_str_to_uint( char const * str, kmp_uint64 * out, char const * * error );

#ifdef __cplusplus
    } // extern "C"
#endif // __cplusplus

#endif // KMP_STR_H

// end of file //