/*************************************************************************
*
* $Id: triostr.c 3600 2007-04-17 12:44:58Z veillard $
*
* Copyright (C) 2001 Bjorn Reese and Daniel Stenberg.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE AUTHORS AND
* CONTRIBUTORS ACCEPT NO RESPONSIBILITY IN ANY CONCEIVABLE MANNER.
*
************************************************************************/
/*************************************************************************
* Include files
*/
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <math.h>
#include "triodef.h"
#include "triostr.h"
/*************************************************************************
* Definitions
*/
#if !defined(TRIO_STRING_PUBLIC)
# define TRIO_STRING_PUBLIC TRIO_PUBLIC
#endif
#if !defined(TRIO_STRING_PRIVATE)
# define TRIO_STRING_PRIVATE TRIO_PRIVATE
#endif
#if !defined(NULL)
# define NULL 0
#endif
#if !defined(NIL)
# define NIL ((char)0)
#endif
#if !defined(FALSE)
# define FALSE (1 == 0)
# define TRUE (! FALSE)
#endif
#if !defined(BOOLEAN_T)
# define BOOLEAN_T int
#endif
#if defined(TRIO_COMPILER_SUPPORTS_C99)
# define USE_STRTOD
# define USE_STRTOF
#elif defined(TRIO_COMPILER_MSVC)
# define USE_STRTOD
#endif
#if defined(TRIO_PLATFORM_UNIX)
# define USE_STRCASECMP
# define USE_STRNCASECMP
# if defined(TRIO_PLATFORM_SUNOS)
# define USE_SYS_ERRLIST
# else
# define USE_STRERROR
# endif
# if defined(TRIO_PLATFORM_QNX)
# define strcasecmp(x,y) stricmp(x,y)
# define strncasecmp(x,y,n) strnicmp(x,y,n)
# endif
#elif defined(TRIO_PLATFORM_WIN32)
# define USE_STRCASECMP
# if defined(_WIN32_WCE)
# define strcasecmp(x,y) _stricmp(x,y)
# else
# define strcasecmp(x,y) strcmpi(x,y)
# endif
#endif
#if !(defined(TRIO_PLATFORM_SUNOS))
# define USE_TOLOWER
# define USE_TOUPPER
#endif
/*************************************************************************
* Structures
*/
struct _trio_string_t
{
char *content;
size_t length;
size_t allocated;
};
/*************************************************************************
* Constants
*/
#if !defined(TRIO_MINIMAL)
static TRIO_CONST char rcsid[] = "@(#)$Id: triostr.c 3600 2007-04-17 12:44:58Z veillard $";
#endif
/*************************************************************************
* Static String Functions
*/
#if defined(TRIO_DOCUMENTATION)
# include "doc/doc_static.h"
#endif
/** @addtogroup StaticStrings
@{
*/
/**
Create new string.
@param size Size of new string.
@return Pointer to string, or NULL if allocation failed.
*/
TRIO_STRING_PUBLIC char *
trio_create
TRIO_ARGS1((size),
size_t size)
{
return (char *)TRIO_MALLOC(size);
}
/**
Destroy string.
@param string String to be freed.
*/
TRIO_STRING_PUBLIC void
trio_destroy
TRIO_ARGS1((string),
char *string)
{
if (string)
{
TRIO_FREE(string);
}
}
/**
Count the number of characters in a string.
@param string String to measure.
@return Number of characters in @string.
*/
TRIO_STRING_PUBLIC size_t
trio_length
TRIO_ARGS1((string),
TRIO_CONST char *string)
{
return strlen(string);
}
#if !defined(TRIO_MINIMAL)
/**
Append @p source at the end of @p target.
@param target Target string.
@param source Source string.
@return Boolean value indicating success or failure.
@pre @p target must point to a memory chunk with sufficient room to
contain the @p target string and @p source string.
@pre No boundary checking is performed, so insufficient memory will
result in a buffer overrun.
@post @p target will be zero terminated.
*/
TRIO_STRING_PUBLIC int
trio_append
TRIO_ARGS2((target, source),
char *target,
TRIO_CONST char *source)
{
assert(target);
assert(source);
return (strcat(target, source) != NULL);
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/**
Append at most @p max characters from @p source to @p target.
@param target Target string.
@param max Maximum number of characters to append.
@param source Source string.
@return Boolean value indicating success or failure.
@pre @p target must point to a memory chuck with sufficient room to
contain the @p target string and the @p source string (at most @p max
characters).
@pre No boundary checking is performed, so insufficient memory will
result in a buffer overrun.
@post @p target will be zero terminated.
*/
TRIO_STRING_PUBLIC int
trio_append_max
TRIO_ARGS3((target, max, source),
char *target,
size_t max,
TRIO_CONST char *source)
{
size_t length;
assert(target);
assert(source);
length = trio_length(target);
if (max > length)
{
strncat(target, source, max - length - 1);
}
return TRUE;
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/**
Determine if a string contains a substring.
@param string String to be searched.
@param substring String to be found.
@return Boolean value indicating success or failure.
*/
TRIO_STRING_PUBLIC int
trio_contains
TRIO_ARGS2((string, substring),
TRIO_CONST char *string,
TRIO_CONST char *substring)
{
assert(string);
assert(substring);
return (0 != strstr(string, substring));
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/**
Copy @p source to @p target.
@param target Target string.
@param source Source string.
@return Boolean value indicating success or failure.
@pre @p target must point to a memory chunk with sufficient room to
contain the @p source string.
@pre No boundary checking is performed, so insufficient memory will
result in a buffer overrun.
@post @p target will be zero terminated.
*/
TRIO_STRING_PUBLIC int
trio_copy
TRIO_ARGS2((target, source),
char *target,
TRIO_CONST char *source)
{
assert(target);
assert(source);
(void)strcpy(target, source);
return TRUE;
}
#endif /* !defined(TRIO_MINIMAL) */
/**
Copy at most @p max characters from @p source to @p target.
@param target Target string.
@param max Maximum number of characters to append.
@param source Source string.
@return Boolean value indicating success or failure.
@pre @p target must point to a memory chunk with sufficient room to
contain the @p source string (at most @p max characters).
@pre No boundary checking is performed, so insufficient memory will
result in a buffer overrun.
@post @p target will be zero terminated.
*/
TRIO_STRING_PUBLIC int
trio_copy_max
TRIO_ARGS3((target, max, source),
char *target,
size_t max,
TRIO_CONST char *source)
{
assert(target);
assert(source);
assert(max > 0); /* Includes != 0 */
(void)strncpy(target, source, max - 1);
target[max - 1] = (char)0;
return TRUE;
}
/*
* TrioDuplicateMax
*/
TRIO_STRING_PRIVATE char *
TrioDuplicateMax
TRIO_ARGS2((source, size),
TRIO_CONST char *source,
size_t size)
{
char *target;
assert(source);
/* Make room for string plus a terminating zero */
size++;
target = trio_create(size);
if (target)
{
trio_copy_max(target, size, source);
}
return target;
}
/**
Duplicate @p source.
@param source Source string.
@return A copy of the @p source string.
@post @p target will be zero terminated.
*/
TRIO_STRING_PUBLIC char *
trio_duplicate
TRIO_ARGS1((source),
TRIO_CONST char *source)
{
return TrioDuplicateMax(source, trio_length(source));
}
#if !defined(TRIO_MINIMAL)
/**
Duplicate at most @p max characters of @p source.
@param source Source string.
@param max Maximum number of characters to duplicate.
@return A copy of the @p source string.
@post @p target will be zero terminated.
*/
TRIO_STRING_PUBLIC char *
trio_duplicate_max TRIO_ARGS2((source, max),
TRIO_CONST char *source,
size_t max)
{
size_t length;
assert(source);
assert(max > 0);
length = trio_length(source);
if (length > max)
{
length = max;
}
return TrioDuplicateMax(source, length);
}
#endif /* !defined(TRIO_MINIMAL) */
/**
Compare if two strings are equal.
@param first First string.
@param second Second string.
@return Boolean indicating whether the two strings are equal or not.
Case-insensitive comparison.
*/
TRIO_STRING_PUBLIC int
trio_equal
TRIO_ARGS2((first, second),
TRIO_CONST char *first,
TRIO_CONST char *second)
{
assert(first);
assert(second);
if ((first != NULL) && (second != NULL))
{
#if defined(USE_STRCASECMP)
return (0 == strcasecmp(first, second));
#else
while ((*first != NIL) && (*second != NIL))
{
if (trio_to_upper(*first) != trio_to_upper(*second))
{
break;
}
first++;
second++;
}
return ((*first == NIL) && (*second == NIL));
#endif
}
return FALSE;
}
/**
Compare if two strings are equal.
@param first First string.
@param second Second string.
@return Boolean indicating whether the two strings are equal or not.
Case-sensitive comparison.
*/
TRIO_STRING_PUBLIC int
trio_equal_case
TRIO_ARGS2((first, second),
TRIO_CONST char *first,
TRIO_CONST char *second)
{
assert(first);
assert(second);
if ((first != NULL) && (second != NULL))
{
return (0 == strcmp(first, second));
}
return FALSE;
}
#if !defined(TRIO_MINIMAL)
/**
Compare if two strings up until the first @p max characters are equal.
@param first First string.
@param max Maximum number of characters to compare.
@param second Second string.
@return Boolean indicating whether the two strings are equal or not.
Case-sensitive comparison.
*/
TRIO_STRING_PUBLIC int
trio_equal_case_max
TRIO_ARGS3((first, max, second),
TRIO_CONST char *first,
size_t max,
TRIO_CONST char *second)
{
assert(first);
assert(second);
if ((first != NULL) && (second != NULL))
{
return (0 == strncmp(first, second, max));
}
return FALSE;
}
#endif /* !defined(TRIO_MINIMAL) */
/**
Compare if two strings are equal.
@param first First string.
@param second Second string.
@return Boolean indicating whether the two strings are equal or not.
Collating characters are considered equal.
*/
TRIO_STRING_PUBLIC int
trio_equal_locale
TRIO_ARGS2((first, second),
TRIO_CONST char *first,
TRIO_CONST char *second)
{
assert(first);
assert(second);
#if defined(LC_COLLATE)
return (strcoll(first, second) == 0);
#else
return trio_equal(first, second);
#endif
}
/**
Compare if two strings up until the first @p max characters are equal.
@param first First string.
@param max Maximum number of characters to compare.
@param second Second string.
@return Boolean indicating whether the two strings are equal or not.
Case-insensitive comparison.
*/
TRIO_STRING_PUBLIC int
trio_equal_max
TRIO_ARGS3((first, max, second),
TRIO_CONST char *first,
size_t max,
TRIO_CONST char *second)
{
assert(first);
assert(second);
if ((first != NULL) && (second != NULL))
{
#if defined(USE_STRNCASECMP)
return (0 == strncasecmp(first, second, max));
#else
/* Not adequately tested yet */
size_t cnt = 0;
while ((*first != NIL) && (*second != NIL) && (cnt <= max))
{
if (trio_to_upper(*first) != trio_to_upper(*second))
{
break;
}
first++;
second++;
cnt++;
}
return ((cnt == max) || ((*first == NIL) && (*second == NIL)));
#endif
}
return FALSE;
}
/**
Provide a textual description of an error code (errno).
@param error_number Error number.
@return Textual description of @p error_number.
*/
TRIO_STRING_PUBLIC TRIO_CONST char *
trio_error
TRIO_ARGS1((error_number),
int error_number)
{
#if defined(USE_STRERROR)
return strerror(error_number);
#elif defined(USE_SYS_ERRLIST)
extern char *sys_errlist[];
extern int sys_nerr;
return ((error_number < 0) || (error_number >= sys_nerr))
? "unknown"
: sys_errlist[error_number];
#else
return "unknown";
#endif
}
#if !defined(TRIO_MINIMAL) && !defined(_WIN32_WCE)
/**
Format the date/time according to @p format.
@param target Target string.
@param max Maximum number of characters to format.
@param format Formatting string.
@param datetime Date/time structure.
@return Number of formatted characters.
The formatting string accepts the same specifiers as the standard C
function strftime.
*/
TRIO_STRING_PUBLIC size_t
trio_format_date_max
TRIO_ARGS4((target, max, format, datetime),
char *target,
size_t max,
TRIO_CONST char *format,
TRIO_CONST struct tm *datetime)
{
assert(target);
assert(format);
assert(datetime);
assert(max > 0);
return strftime(target, max, format, datetime);
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/**
Calculate a hash value for a string.
@param string String to be calculated on.
@param type Hash function.
@return Calculated hash value.
@p type can be one of the following
@li @c TRIO_HASH_PLAIN Plain hash function.
*/
TRIO_STRING_PUBLIC unsigned long
trio_hash
TRIO_ARGS2((string, type),
TRIO_CONST char *string,
int type)
{
unsigned long value = 0L;
char ch;
assert(string);
switch (type)
{
case TRIO_HASH_PLAIN:
while ( (ch = *string++) != NIL )
{
value *= 31;
value += (unsigned long)ch;
}
break;
default:
assert(FALSE);
break;
}
return value;
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/**
Find first occurrence of a character in a string.
@param string String to be searched.
@param character Character to be found.
@param A pointer to the found character, or NULL if character was not found.
*/
TRIO_STRING_PUBLIC char *
trio_index
TRIO_ARGS2((string, character),
TRIO_CONST char *string,
int character)
{
assert(string);
return strchr(string, character);
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/**
Find last occurrence of a character in a string.
@param string String to be searched.
@param character Character to be found.
@param A pointer to the found character, or NULL if character was not found.
*/
TRIO_STRING_PUBLIC char *
trio_index_last
TRIO_ARGS2((string, character),
TRIO_CONST char *string,
int character)
{
assert(string);
return strchr(string, character);
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/**
Convert the alphabetic letters in the string to lower-case.
@param target String to be converted.
@return Number of processed characters (converted or not).
*/
TRIO_STRING_PUBLIC int
trio_lower
TRIO_ARGS1((target),
char *target)
{
assert(target);
return trio_span_function(target, target, trio_to_lower);
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/**
Compare two strings using wildcards.
@param string String to be searched.
@param pattern Pattern, including wildcards, to search for.
@return Boolean value indicating success or failure.
Case-insensitive comparison.
The following wildcards can be used
@li @c * Match any number of characters.
@li @c ? Match a single character.
*/
TRIO_STRING_PUBLIC int
trio_match
TRIO_ARGS2((string, pattern),
TRIO_CONST char *string,
TRIO_CONST char *pattern)
{
assert(string);
assert(pattern);
for (; ('*' != *pattern); ++pattern, ++string)
{
if (NIL == *string)
{
return (NIL == *pattern);
}
if ((trio_to_upper((int)*string) != trio_to_upper((int)*pattern))
&& ('?' != *pattern))
{
return FALSE;
}
}
/* two-line patch to prevent *too* much recursiveness: */
while ('*' == pattern[1])
pattern++;
do
{
if ( trio_match(string, &pattern[1]) )
{
return TRUE;
}
}
while (*string++);
return FALSE;
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/**
Compare two strings using wildcards.
@param string String to be searched.
@param pattern Pattern, including wildcards, to search for.
@return Boolean value indicating success or failure.
Case-sensitive comparison.
The following wildcards can be used
@li @c * Match any number of characters.
@li @c ? Match a single character.
*/
TRIO_STRING_PUBLIC int
trio_match_case
TRIO_ARGS2((string, pattern),
TRIO_CONST char *string,
TRIO_CONST char *pattern)
{
assert(string);
assert(pattern);
for (; ('*' != *pattern); ++pattern, ++string)
{
if (NIL == *string)
{
return (NIL == *pattern);
}
if ((*string != *pattern)
&& ('?' != *pattern))
{
return FALSE;
}
}
/* two-line patch to prevent *too* much recursiveness: */
while ('*' == pattern[1])
pattern++;
do
{
if ( trio_match_case(string, &pattern[1]) )
{
return TRUE;
}
}
while (*string++);
return FALSE;
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/**
Execute a function on each character in string.
@param target Target string.
@param source Source string.
@param Function Function to be executed.
@return Number of processed characters.
*/
TRIO_STRING_PUBLIC size_t
trio_span_function
TRIO_ARGS3((target, source, Function),
char *target,
TRIO_CONST char *source,
int (*Function) TRIO_PROTO((int)))
{
size_t count = 0;
assert(target);
assert(source);
assert(Function);
while (*source != NIL)
{
*target++ = Function(*source++);
count++;
}
return count;
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/**
Search for a substring in a string.
@param string String to be searched.
@param substring String to be found.
@return Pointer to first occurrence of @p substring in @p string, or NULL
if no match was found.
*/
TRIO_STRING_PUBLIC char *
trio_substring
TRIO_ARGS2((string, substring),
TRIO_CONST char *string,
TRIO_CONST char *substring)
{
assert(string);
assert(substring);
return strstr(string, substring);
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/**
Search for a substring in the first @p max characters of a string.
@param string String to be searched.
@param max Maximum characters to be searched.
@param substring String to be found.
@return Pointer to first occurrence of @p substring in @p string, or NULL
if no match was found.
*/
TRIO_STRING_PUBLIC char *
trio_substring_max
TRIO_ARGS3((string, max, substring),
TRIO_CONST char *string,
size_t max,
TRIO_CONST char *substring)
{
size_t count;
size_t size;
char *result = NULL;
assert(string);
assert(substring);
size = trio_length(substring);
if (size <= max)
{
for (count = 0; count <= max - size; count++)
{
if (trio_equal_max(substring, size, &string[count]))
{
result = (char *)&string[count];
break;
}
}
}
return result;
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/**
Tokenize string.
@param string String to be tokenized.
@param tokens String containing list of delimiting characters.
@return Start of new token.
@warning @p string will be destroyed.
*/
TRIO_STRING_PUBLIC char *
trio_tokenize
TRIO_ARGS2((string, delimiters),
char *string,
TRIO_CONST char *delimiters)
{
assert(delimiters);
return strtok(string, delimiters);
}
#endif /* !defined(TRIO_MINIMAL) */
/**
Convert string to floating-point number.
@param source String to be converted.
@param endp Pointer to end of the converted string.
@return A floating-point number.
The following Extended Backus-Naur form is used
@verbatim
double ::= [ <sign> ]
( <number> |
<number> <decimal_point> <number> |
<decimal_point> <number> )
[ <exponential> [ <sign> ] <number> ]
number ::= 1*( <digit> )
digit ::= ( '0' | '1' | '2' | '3' | '4' | '5' | '6' | '7' | '8' | '9' )
exponential ::= ( 'e' | 'E' )
sign ::= ( '-' | '+' )
decimal_point ::= '.'
@endverbatim
*/
/* FIXME: Add EBNF for hex-floats */
TRIO_STRING_PUBLIC trio_long_double_t
trio_to_long_double
TRIO_ARGS2((source, endp),
TRIO_CONST char *source,
char **endp)
{
#if defined(USE_STRTOLD)
return strtold(source, endp);
#else
int isNegative = FALSE;
int isExponentNegative = FALSE;
trio_long_double_t integer = 0.0;
trio_long_double_t fraction = 0.0;
unsigned long exponent = 0;
trio_long_double_t base;
trio_long_double_t fracdiv = 1.0;
trio_long_double_t value = 0.0;
/* First try hex-floats */
if ((source[0] == '0') && ((source[1] == 'x') || (source[1] == 'X')))
{
base = 16.0;
source += 2;
while (isxdigit((int)*source))
{
integer *= base;
integer += (isdigit((int)*source)
? (*source - '0')
: 10 + (trio_to_upper((int)*source) - 'A'));
source++;
}
if (*source == '.')
{
source++;
while (isxdigit((int)*source))
{
fracdiv /= base;
fraction += fracdiv * (isdigit((int)*source)
? (*source - '0')
: 10 + (trio_to_upper((int)*source) - 'A'));
source++;
}
if ((*source == 'p') || (*source == 'P'))
{
source++;
if ((*source == '+') || (*source == '-'))
{
isExponentNegative = (*source == '-');
source++;
}
while (isdigit((int)*source))
{
exponent *= 10;
exponent += (*source - '0');
source++;
}
}
}
/* For later use with exponent */
base = 2.0;
}
else /* Then try normal decimal floats */
{
base = 10.0;
isNegative = (*source == '-');
/* Skip sign */
if ((*source == '+') || (*source == '-'))
source++;
/* Integer part */
while (isdigit((int)*source))
{
integer *= base;
integer += (*source - '0');
source++;
}
if (*source == '.')
{
source++; /* skip decimal point */
while (isdigit((int)*source))
{
fracdiv /= base;
fraction += (*source - '0') * fracdiv;
source++;
}
}
if ((*source == 'e')
|| (*source == 'E')
#if TRIO_MICROSOFT
|| (*source == 'd')
|| (*source == 'D')
#endif
)
{
source++; /* Skip exponential indicator */
isExponentNegative = (*source == '-');
if ((*source == '+') || (*source == '-'))
source++;
while (isdigit((int)*source))
{
exponent *= (int)base;
exponent += (*source - '0');
source++;
}
}
}
value = integer + fraction;
if (exponent != 0)
{
if (isExponentNegative)
value /= pow(base, (double)exponent);
else
value *= pow(base, (double)exponent);
}
if (isNegative)
value = -value;
if (endp)
*endp = (char *)source;
return value;
#endif
}
/**
Convert string to floating-point number.
@param source String to be converted.
@param endp Pointer to end of the converted string.
@return A floating-point number.
See @ref trio_to_long_double.
*/
TRIO_STRING_PUBLIC double
trio_to_double
TRIO_ARGS2((source, endp),
TRIO_CONST char *source,
char **endp)
{
#if defined(USE_STRTOD)
return strtod(source, endp);
#else
return (double)trio_to_long_double(source, endp);
#endif
}
#if !defined(TRIO_MINIMAL)
/**
Convert string to floating-point number.
@param source String to be converted.
@param endp Pointer to end of the converted string.
@return A floating-point number.
See @ref trio_to_long_double.
*/
TRIO_STRING_PUBLIC float
trio_to_float
TRIO_ARGS2((source, endp),
TRIO_CONST char *source,
char **endp)
{
#if defined(USE_STRTOF)
return strtof(source, endp);
#else
return (float)trio_to_long_double(source, endp);
#endif
}
#endif /* !defined(TRIO_MINIMAL) */
/**
Convert string to signed integer.
@param string String to be converted.
@param endp Pointer to end of converted string.
@param base Radix number of number.
*/
TRIO_STRING_PUBLIC long
trio_to_long
TRIO_ARGS3((string, endp, base),
TRIO_CONST char *string,
char **endp,
int base)
{
assert(string);
assert((base >= 2) && (base <= 36));
return strtol(string, endp, base);
}
#if !defined(TRIO_MINIMAL)
/**
Convert one alphabetic letter to lower-case.
@param source The letter to be converted.
@return The converted letter.
*/
TRIO_STRING_PUBLIC int
trio_to_lower
TRIO_ARGS1((source),
int source)
{
#if defined(USE_TOLOWER)
return tolower(source);
#else
/* Does not handle locales or non-contiguous alphabetic characters */
return ((source >= (int)'A') && (source <= (int)'Z'))
? source - 'A' + 'a'
: source;
#endif
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/**
Convert string to unsigned integer.
@param string String to be converted.
@param endp Pointer to end of converted string.
@param base Radix number of number.
*/
TRIO_STRING_PUBLIC unsigned long
trio_to_unsigned_long
TRIO_ARGS3((string, endp, base),
TRIO_CONST char *string,
char **endp,
int base)
{
assert(string);
assert((base >= 2) && (base <= 36));
return strtoul(string, endp, base);
}
#endif /* !defined(TRIO_MINIMAL) */
/**
Convert one alphabetic letter to upper-case.
@param source The letter to be converted.
@return The converted letter.
*/
TRIO_STRING_PUBLIC int
trio_to_upper
TRIO_ARGS1((source),
int source)
{
#if defined(USE_TOUPPER)
return toupper(source);
#else
/* Does not handle locales or non-contiguous alphabetic characters */
return ((source >= (int)'a') && (source <= (int)'z'))
? source - 'a' + 'A'
: source;
#endif
}
#if !defined(TRIO_MINIMAL)
/**
Convert the alphabetic letters in the string to upper-case.
@param target The string to be converted.
@return The number of processed characters (converted or not).
*/
TRIO_STRING_PUBLIC int
trio_upper
TRIO_ARGS1((target),
char *target)
{
assert(target);
return trio_span_function(target, target, trio_to_upper);
}
#endif /* !defined(TRIO_MINIMAL) */
/** @} End of StaticStrings */
/*************************************************************************
* Dynamic String Functions
*/
#if defined(TRIO_DOCUMENTATION)
# include "doc/doc_dynamic.h"
#endif
/** @addtogroup DynamicStrings
@{
*/
/*
* TrioStringAlloc
*/
TRIO_STRING_PRIVATE trio_string_t *
TrioStringAlloc(TRIO_NOARGS)
{
trio_string_t *self;
self = (trio_string_t *)TRIO_MALLOC(sizeof(trio_string_t));
if (self)
{
self->content = NULL;
self->length = 0;
self->allocated = 0;
}
return self;
}
/*
* TrioStringGrow
*
* The size of the string will be increased by 'delta' characters. If
* 'delta' is zero, the size will be doubled.
*/
TRIO_STRING_PRIVATE BOOLEAN_T
TrioStringGrow
TRIO_ARGS2((self, delta),
trio_string_t *self,
size_t delta)
{
BOOLEAN_T status = FALSE;
char *new_content;
size_t new_size;
new_size = (delta == 0)
? ( (self->allocated == 0) ? 1 : self->allocated * 2 )
: self->allocated + delta;
new_content = (char *)TRIO_REALLOC(self->content, new_size);
if (new_content)
{
self->content = new_content;
self->allocated = new_size;
status = TRUE;
}
return status;
}
#if !defined(TRIO_MINIMAL)
/*
* TrioStringGrowTo
*
* The size of the string will be increased to 'length' plus one characters.
* If 'length' is less than the original size, the original size will be
* used (that is, the size of the string is never decreased).
*/
TRIO_STRING_PRIVATE BOOLEAN_T
TrioStringGrowTo
TRIO_ARGS2((self, length),
trio_string_t *self,
size_t length)
{
length++; /* Room for terminating zero */
return (self->allocated < length)
? TrioStringGrow(self, length - self->allocated)
: TRUE;
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/**
Create a new dynamic string.
@param initial_size Initial size of the buffer.
@return Newly allocated dynamic string, or NULL if memory allocation failed.
*/
TRIO_STRING_PUBLIC trio_string_t *
trio_string_create
TRIO_ARGS1((initial_size),
int initial_size)
{
trio_string_t *self;
self = TrioStringAlloc();
if (self)
{
if (TrioStringGrow(self,
(size_t)((initial_size > 0) ? initial_size : 1)))
{
self->content[0] = (char)0;
self->allocated = initial_size;
}
else
{
trio_string_destroy(self);
self = NULL;
}
}
return self;
}
#endif /* !defined(TRIO_MINIMAL) */
/**
Deallocate the dynamic string and its contents.
@param self Dynamic string
*/
TRIO_STRING_PUBLIC void
trio_string_destroy
TRIO_ARGS1((self),
trio_string_t *self)
{
assert(self);
if (self)
{
trio_destroy(self->content);
TRIO_FREE(self);
}
}
#if !defined(TRIO_MINIMAL)
/**
Get a pointer to the content.
@param self Dynamic string.
@param offset Offset into content.
@return Pointer to the content.
@p Offset can be zero, positive, or negative. If @p offset is zero,
then the start of the content will be returned. If @p offset is positive,
then a pointer to @p offset number of characters from the beginning of the
content is returned. If @p offset is negative, then a pointer to @p offset
number of characters from the ending of the string, starting at the
terminating zero, is returned.
*/
TRIO_STRING_PUBLIC char *
trio_string_get
TRIO_ARGS2((self, offset),
trio_string_t *self,
int offset)
{
char *result = NULL;
assert(self);
if (self->content != NULL)
{
if (self->length == 0)
{
(void)trio_string_length(self);
}
if (offset >= 0)
{
if (offset > (int)self->length)
{
offset = self->length;
}
}
else
{
offset += self->length + 1;
if (offset < 0)
{
offset = 0;
}
}
result = &(self->content[offset]);
}
return result;
}
#endif /* !defined(TRIO_MINIMAL) */
/**
Extract the content.
@param self Dynamic String
@return Content of dynamic string.
The content is removed from the dynamic string. This enables destruction
of the dynamic string without deallocation of the content.
*/
TRIO_STRING_PUBLIC char *
trio_string_extract
TRIO_ARGS1((self),
trio_string_t *self)
{
char *result;
assert(self);
result = self->content;
/* FIXME: Allocate new empty buffer? */
self->content = NULL;
self->length = self->allocated = 0;
return result;
}
#if !defined(TRIO_MINIMAL)
/**
Set the content of the dynamic string.
@param self Dynamic String
@param buffer The new content.
Sets the content of the dynamic string to a copy @p buffer.
An existing content will be deallocated first, if necessary.
@remark
This function will make a copy of @p buffer.
You are responsible for deallocating @p buffer yourself.
*/
TRIO_STRING_PUBLIC void
trio_xstring_set
TRIO_ARGS2((self, buffer),
trio_string_t *self,
char *buffer)
{
assert(self);
trio_destroy(self->content);
self->content = trio_duplicate(buffer);
}
#endif /* !defined(TRIO_MINIMAL) */
/*
* trio_string_size
*/
TRIO_STRING_PUBLIC int
trio_string_size
TRIO_ARGS1((self),
trio_string_t *self)
{
assert(self);
return self->allocated;
}
/*
* trio_string_terminate
*/
TRIO_STRING_PUBLIC void
trio_string_terminate
TRIO_ARGS1((self),
trio_string_t *self)
{
trio_xstring_append_char(self, 0);
}
#if !defined(TRIO_MINIMAL)
/**
Append the second string to the first.
@param self Dynamic string to be modified.
@param other Dynamic string to copy from.
@return Boolean value indicating success or failure.
*/
TRIO_STRING_PUBLIC int
trio_string_append
TRIO_ARGS2((self, other),
trio_string_t *self,
trio_string_t *other)
{
size_t length;
assert(self);
assert(other);
length = self->length + other->length;
if (!TrioStringGrowTo(self, length))
goto error;
trio_copy(&self->content[self->length], other->content);
self->length = length;
return TRUE;
error:
return FALSE;
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/*
* trio_xstring_append
*/
TRIO_STRING_PUBLIC int
trio_xstring_append
TRIO_ARGS2((self, other),
trio_string_t *self,
TRIO_CONST char *other)
{
size_t length;
assert(self);
assert(other);
length = self->length + trio_length(other);
if (!TrioStringGrowTo(self, length))
goto error;
trio_copy(&self->content[self->length], other);
self->length = length;
return TRUE;
error:
return FALSE;
}
#endif /* !defined(TRIO_MINIMAL) */
/*
* trio_xstring_append_char
*/
TRIO_STRING_PUBLIC int
trio_xstring_append_char
TRIO_ARGS2((self, character),
trio_string_t *self,
char character)
{
assert(self);
if ((int)self->length >= trio_string_size(self))
{
if (!TrioStringGrow(self, 0))
goto error;
}
self->content[self->length] = character;
self->length++;
return TRUE;
error:
return FALSE;
}
#if !defined(TRIO_MINIMAL)
/**
Search for the first occurrence of second parameter in the first.
@param self Dynamic string to be modified.
@param other Dynamic string to copy from.
@return Boolean value indicating success or failure.
*/
TRIO_STRING_PUBLIC int
trio_string_contains
TRIO_ARGS2((self, other),
trio_string_t *self,
trio_string_t *other)
{
assert(self);
assert(other);
return trio_contains(self->content, other->content);
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/*
* trio_xstring_contains
*/
TRIO_STRING_PUBLIC int
trio_xstring_contains
TRIO_ARGS2((self, other),
trio_string_t *self,
TRIO_CONST char *other)
{
assert(self);
assert(other);
return trio_contains(self->content, other);
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/*
* trio_string_copy
*/
TRIO_STRING_PUBLIC int
trio_string_copy
TRIO_ARGS2((self, other),
trio_string_t *self,
trio_string_t *other)
{
assert(self);
assert(other);
self->length = 0;
return trio_string_append(self, other);
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/*
* trio_xstring_copy
*/
TRIO_STRING_PUBLIC int
trio_xstring_copy
TRIO_ARGS2((self, other),
trio_string_t *self,
TRIO_CONST char *other)
{
assert(self);
assert(other);
self->length = 0;
return trio_xstring_append(self, other);
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/*
* trio_string_duplicate
*/
TRIO_STRING_PUBLIC trio_string_t *
trio_string_duplicate
TRIO_ARGS1((other),
trio_string_t *other)
{
trio_string_t *self;
assert(other);
self = TrioStringAlloc();
if (self)
{
self->content = TrioDuplicateMax(other->content, other->length);
if (self->content)
{
self->length = other->length;
self->allocated = self->length + 1;
}
else
{
self->length = self->allocated = 0;
}
}
return self;
}
#endif /* !defined(TRIO_MINIMAL) */
/*
* trio_xstring_duplicate
*/
TRIO_STRING_PUBLIC trio_string_t *
trio_xstring_duplicate
TRIO_ARGS1((other),
TRIO_CONST char *other)
{
trio_string_t *self;
assert(other);
self = TrioStringAlloc();
if (self)
{
self->content = TrioDuplicateMax(other, trio_length(other));
if (self->content)
{
self->length = trio_length(self->content);
self->allocated = self->length + 1;
}
else
{
self->length = self->allocated = 0;
}
}
return self;
}
#if !defined(TRIO_MINIMAL)
/*
* trio_string_equal
*/
TRIO_STRING_PUBLIC int
trio_string_equal
TRIO_ARGS2((self, other),
trio_string_t *self,
trio_string_t *other)
{
assert(self);
assert(other);
return trio_equal(self->content, other->content);
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/*
* trio_xstring_equal
*/
TRIO_STRING_PUBLIC int
trio_xstring_equal
TRIO_ARGS2((self, other),
trio_string_t *self,
TRIO_CONST char *other)
{
assert(self);
assert(other);
return trio_equal(self->content, other);
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/*
* trio_string_equal_max
*/
TRIO_STRING_PUBLIC int
trio_string_equal_max
TRIO_ARGS3((self, max, other),
trio_string_t *self,
size_t max,
trio_string_t *other)
{
assert(self);
assert(other);
return trio_equal_max(self->content, max, other->content);
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/*
* trio_xstring_equal_max
*/
TRIO_STRING_PUBLIC int
trio_xstring_equal_max
TRIO_ARGS3((self, max, other),
trio_string_t *self,
size_t max,
TRIO_CONST char *other)
{
assert(self);
assert(other);
return trio_equal_max(self->content, max, other);
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/*
* trio_string_equal_case
*/
TRIO_STRING_PUBLIC int
trio_string_equal_case
TRIO_ARGS2((self, other),
trio_string_t *self,
trio_string_t *other)
{
assert(self);
assert(other);
return trio_equal_case(self->content, other->content);
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/*
* trio_xstring_equal_case
*/
TRIO_STRING_PUBLIC int
trio_xstring_equal_case
TRIO_ARGS2((self, other),
trio_string_t *self,
TRIO_CONST char *other)
{
assert(self);
assert(other);
return trio_equal_case(self->content, other);
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/*
* trio_string_equal_case_max
*/
TRIO_STRING_PUBLIC int
trio_string_equal_case_max
TRIO_ARGS3((self, max, other),
trio_string_t *self,
size_t max,
trio_string_t *other)
{
assert(self);
assert(other);
return trio_equal_case_max(self->content, max, other->content);
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/*
* trio_xstring_equal_case_max
*/
TRIO_STRING_PUBLIC int
trio_xstring_equal_case_max
TRIO_ARGS3((self, max, other),
trio_string_t *self,
size_t max,
TRIO_CONST char *other)
{
assert(self);
assert(other);
return trio_equal_case_max(self->content, max, other);
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL) && !defined(_WIN32_WCE)
/*
* trio_string_format_data_max
*/
TRIO_STRING_PUBLIC size_t
trio_string_format_date_max
TRIO_ARGS4((self, max, format, datetime),
trio_string_t *self,
size_t max,
TRIO_CONST char *format,
TRIO_CONST struct tm *datetime)
{
assert(self);
return trio_format_date_max(self->content, max, format, datetime);
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/*
* trio_string_index
*/
TRIO_STRING_PUBLIC char *
trio_string_index
TRIO_ARGS2((self, character),
trio_string_t *self,
int character)
{
assert(self);
return trio_index(self->content, character);
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/*
* trio_string_index_last
*/
TRIO_STRING_PUBLIC char *
trio_string_index_last
TRIO_ARGS2((self, character),
trio_string_t *self,
int character)
{
assert(self);
return trio_index_last(self->content, character);
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/*
* trio_string_length
*/
TRIO_STRING_PUBLIC int
trio_string_length
TRIO_ARGS1((self),
trio_string_t *self)
{
assert(self);
if (self->length == 0)
{
self->length = trio_length(self->content);
}
return self->length;
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/*
* trio_string_lower
*/
TRIO_STRING_PUBLIC int
trio_string_lower
TRIO_ARGS1((self),
trio_string_t *self)
{
assert(self);
return trio_lower(self->content);
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/*
* trio_string_match
*/
TRIO_STRING_PUBLIC int
trio_string_match
TRIO_ARGS2((self, other),
trio_string_t *self,
trio_string_t *other)
{
assert(self);
assert(other);
return trio_match(self->content, other->content);
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/*
* trio_xstring_match
*/
TRIO_STRING_PUBLIC int
trio_xstring_match
TRIO_ARGS2((self, other),
trio_string_t *self,
TRIO_CONST char *other)
{
assert(self);
assert(other);
return trio_match(self->content, other);
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/*
* trio_string_match_case
*/
TRIO_STRING_PUBLIC int
trio_string_match_case
TRIO_ARGS2((self, other),
trio_string_t *self,
trio_string_t *other)
{
assert(self);
assert(other);
return trio_match_case(self->content, other->content);
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/*
* trio_xstring_match_case
*/
TRIO_STRING_PUBLIC int
trio_xstring_match_case
TRIO_ARGS2((self, other),
trio_string_t *self,
TRIO_CONST char *other)
{
assert(self);
assert(other);
return trio_match_case(self->content, other);
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/*
* trio_string_substring
*/
TRIO_STRING_PUBLIC char *
trio_string_substring
TRIO_ARGS2((self, other),
trio_string_t *self,
trio_string_t *other)
{
assert(self);
assert(other);
return trio_substring(self->content, other->content);
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/*
* trio_xstring_substring
*/
TRIO_STRING_PUBLIC char *
trio_xstring_substring
TRIO_ARGS2((self, other),
trio_string_t *self,
TRIO_CONST char *other)
{
assert(self);
assert(other);
return trio_substring(self->content, other);
}
#endif /* !defined(TRIO_MINIMAL) */
#if !defined(TRIO_MINIMAL)
/*
* trio_string_upper
*/
TRIO_STRING_PUBLIC int
trio_string_upper
TRIO_ARGS1((self),
trio_string_t *self)
{
assert(self);
return trio_upper(self->content);
}
#endif /* !defined(TRIO_MINIMAL) */
/** @} End of DynamicStrings */
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