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diff --git a/include/rtl/string.h b/include/rtl/string.h new file mode 100644 index 0000000000..26f3615297 --- /dev/null +++ b/include/rtl/string.h @@ -0,0 +1,1454 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +/* + * This file is part of LibreOffice published API. + */ + +#ifndef INCLUDED_RTL_STRING_H +#define INCLUDED_RTL_STRING_H + +#include "sal/config.h" + +#include "osl/interlck.h" +#include "rtl/textcvt.h" +#include "sal/saldllapi.h" +#include "sal/types.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* ======================================================================= */ + +/** Return the length of a string. + + The length is equal to the number of 8-bit characters in the string, + without the terminating NUL character. + + @param str + a null-terminated string. + + @return + the length of the sequence of characters represented by this string, + excluding the terminating NUL character. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_str_getLength( + const char * str ) SAL_THROW_EXTERN_C(); + +/** Compare two strings. + + The comparison is based on the numeric value of each character in the + strings and returns a value indicating their relationship. This function + cannot be used for language-specific sorting. Both strings must be + null-terminated. + + @param first + the first null-terminated string to be compared. + + @param second + the second null-terminated string which is compared with the first one. + + @return + 0 if both strings are equal, a value less than 0 if the first string is + less than the second string, and a value greater than 0 if the first + string is greater than the second string. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_str_compare( + const char * first, const char * second ) SAL_THROW_EXTERN_C(); + +/** Compare two strings. + + The comparison is based on the numeric value of each character in the + strings and returns a value indicating their relationship. This function + cannot be used for language-specific sorting. + + @param first + the first string to be compared. Need not be null-terminated, but must be + at least as long as the specified firstLen. + + @param firstLen + the length of the first string. + + @param second + the second string which is compared with the first one. Need not be + null-terminated, but must be at least as long as the specified secondLen. + + @param secondLen + the length of the second string. + + @return + 0 if both strings are equal, a value less than 0 if the first string is + less than the second string, and a value greater than 0 if the first + string is greater than the second string. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_str_compare_WithLength( + const char * first, sal_Int32 firstLen, const char * second, sal_Int32 secondLen ) SAL_THROW_EXTERN_C(); + +/** Compare two strings with a maximum count of characters. + + The comparison is based on the numeric value of each character in the + strings and returns a value indicating their relationship. This function + cannot be used for language-specific sorting. + + @param first + the first string to be compared. Need not be null-terminated, but must be + at least as long as the specified firstLen. + + @param firstLen + the length of the first string. + + @param second + the second string which is compared with the first one. Need not be + null-terminated, but must be at least as long as the specified secondLen. + + @param secondLen + the length of the second string. + + @param shortenedLen + the maximum number of characters to compare. This length can be greater + or smaller than the lengths of the two strings. + + @return + 0 if both substrings are equal, a value less than 0 if the first substring + is less than the second substring, and a value greater than 0 if the first + substring is greater than the second substring. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_str_shortenedCompare_WithLength( + const char * first, sal_Int32 firstLen, const char * second, sal_Int32 secondLen, sal_Int32 shortenedLen ) SAL_THROW_EXTERN_C(); + +/** Compare two strings from back to front. + + The comparison is based on the numeric value of each character in the + strings and returns a value indicating their relationship. This function + cannot be used for language-specific sorting. + + @param first + the first string to be compared. Need not be null-terminated, but must be + at least as long as the specified firstLen. + + @param firstLen + the length of the first string. + + @param second + the second string which is compared with the first one. Need not be + null-terminated, but must be at least as long as the specified secondLen. + + @param secondLen + the length of the second string. + + @return + 0 if both strings are equal, a value less than 0 if the first string + compares less than the second string, and a value greater than 0 if the + first string compares greater than the second string. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_str_reverseCompare_WithLength( + const char * first, sal_Int32 firstLen, const char * second, sal_Int32 secondLen ) SAL_THROW_EXTERN_C(); + +/** Compare two strings, ignoring the case of ASCII characters. + + The comparison is based on the numeric value of each character in the + strings and returns a value indicating their relationship. Character + values between 65 and 90 (ASCII A--Z) are interpreted as values between 97 + and 122 (ASCII a--z). This function cannot be used for language-specific + sorting. Both strings must be null-terminated. + + @param first + the first null-terminated string to be compared. + + @param second + the second null-terminated string which is compared with the first one. + + @return + 0 if both strings are equal, a value less than 0 if the first string is + less than the second string, and a value greater than 0 if the first + string is greater than the second string. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_str_compareIgnoreAsciiCase( + const char * first, const char * second ) SAL_THROW_EXTERN_C(); + +/** Compare two strings, ignoring the case of ASCII characters. + + The comparison is based on the numeric value of each character in the + strings and returns a value indicating their relationship. Character + values between 65 and 90 (ASCII A--Z) are interpreted as values between 97 + and 122 (ASCII a--z). This function cannot be used for language-specific + sorting. + + @param first + the first string to be compared. Need not be null-terminated, but must be + at least as long as the specified firstLen. + + @param firstLen + the length of the first string. + + @param second + the second string which is compared with the first one. Need not be + null-terminated, but must be at least as long as the specified secondLen. + + @param secondLen + the length of the second string. + + @return + 0 if both strings are equal, a value less than 0 if the first string is + less than the second string, and a value greater than 0 if the first + string is greater than the second string. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_str_compareIgnoreAsciiCase_WithLength( + const char * first, sal_Int32 firstLen, const char * second, sal_Int32 secondLen ) SAL_THROW_EXTERN_C(); + +/** Compare two strings with a maximum count of characters, ignoring the case + of ASCII characters. + + The comparison is based on the numeric value of each character in the + strings and returns a value indicating their relationship. Character + values between 65 and 90 (ASCII A--Z) are interpreted as values between 97 + and 122 (ASCII a--z). This function cannot be used for language-specific + sorting. + + @param first + the first string to be compared. Need not be null-terminated, but must be + at least as long as the specified firstLen. + + @param firstLen + the length of the first string. + + @param second + the second string which is compared with the first one. Need not be + null-terminated, but must be at least as long as the specified secondLen. + + @param secondLen + the length of the second string. + + @param shortenedLen + the maximum number of characters to compare. This length can be greater + or smaller than the lengths of the two strings. + + @return + 0 if both substrings are equal, a value less than 0 if the first substring + is less than the second substring, and a value greater than 0 if the first + substring is greater than the second substring. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_str_shortenedCompareIgnoreAsciiCase_WithLength( + const char * first, sal_Int32 firstLen, const char * second, sal_Int32 secondLen, sal_Int32 shortenedLen ) SAL_THROW_EXTERN_C(); + +/** Return a hash code for a string. + + It is not allowed to store the hash code persistently, because later + versions could return other hash codes. The string must be + null-terminated. + + @param str + a null-terminated string. + + @return + a hash code for the given string. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_str_hashCode( + const char * str ) SAL_THROW_EXTERN_C(); + +/** Return a hash code for a string. + + It is not allowed to store the hash code persistently, because later + versions could return other hash codes. + + @param str + a string. Need not be null-terminated, but must be at least as long as + the specified len. + + @param len + the length of the string. + + @return + a hash code for the given string. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_str_hashCode_WithLength( + const char * str, sal_Int32 len ) SAL_THROW_EXTERN_C(); + +/** Search for the first occurrence of a character within a string. + + The string must be null-terminated. + + @param str + a null-terminated string. + + @param ch + the character to be searched for. + + @return + the index (starting at 0) of the first occurrence of the character in the + string, or -1 if the character does not occur. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_str_indexOfChar( + const char * str, char ch ) SAL_THROW_EXTERN_C(); + +/** Search for the first occurrence of a character within a string. + + @param str + a string. Need not be null-terminated, but must be at least as long as + the specified len. + + @param len + the length of the string. + + @param ch + the character to be searched for. + + @return + the index (starting at 0) of the first occurrence of the character in the + string, or -1 if the character does not occur. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_str_indexOfChar_WithLength( + const char * str, sal_Int32 len, char ch ) SAL_THROW_EXTERN_C(); + +/** Search for the last occurrence of a character within a string. + + The string must be null-terminated. + + @param str + a null-terminated string. + + @param ch + the character to be searched for. + + @return + the index (starting at 0) of the last occurrence of the character in the + string, or -1 if the character does not occur. The returned value is + always smaller than the string length. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_str_lastIndexOfChar( + const char * str, char ch ) SAL_THROW_EXTERN_C(); + +/** Search for the last occurrence of a character within a string. + + @param str + a string. Need not be null-terminated, but must be at least as long as + the specified len. + + @param len + the length of the string. + + @param ch + the character to be searched for. + + @return + the index (starting at 0) of the last occurrence of the character in the + string, or -1 if the character does not occur. The returned value is + always smaller than the string length. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_str_lastIndexOfChar_WithLength( + const char * str, sal_Int32 len, char ch ) SAL_THROW_EXTERN_C(); + +/** Search for the first occurrence of a substring within a string. + + If subStr is empty, or both str and subStr are empty, -1 is returned. + Both strings must be null-terminated. + + @param str + a null-terminated string. + + @param subStr + the null-terminated substring to be searched for. + + @return + the index (starting at 0) of the first character of the first occurrence + of the substring within the string, or -1 if the substring does not occur. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_str_indexOfStr( + const char * str, const char * subStr ) SAL_THROW_EXTERN_C(); + +/** Search for the first occurrence of a substring within a string. + + If subStr is empty, or both str and subStr are empty, -1 is returned. + + @param str + a string. Need not be null-terminated, but must be at least as long as + the specified len. + + @param len + the length of the string. + + @param subStr + the substring to be searched for. Need not be null-terminated, but must + be at least as long as the specified subLen. + + @param subLen + the length of the substring. + + @return + the index (starting at 0) of the first character of the first occurrence + of the substring within the string, or -1 if the substring does not occur. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_str_indexOfStr_WithLength( + const char * str, sal_Int32 len, const char * subStr, sal_Int32 subLen ) SAL_THROW_EXTERN_C(); + +/** Search for the last occurrence of a substring within a string. + + If subStr is empty, or both str and subStr are empty, -1 is returned. + Both strings must be null-terminated. + + @param str + a null-terminated string. + + @param subStr + the null-terminated substring to be searched for. + + @return + the index (starting at 0) of the first character of the last occurrence + of the substring within the string, or -1 if the substring does not occur. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_str_lastIndexOfStr( + const char * str, const char * subStr ) SAL_THROW_EXTERN_C(); + +/** Search for the last occurrence of a substring within a string. + + If subStr is empty, or both str and subStr are empty, -1 is returned. + + @param str + a string. Need not be null-terminated, but must be at least as long as + the specified len. + + @param len + the length of the string. + + @param subStr + the substring to be searched for. Need not be null-terminated, but must + be at least as long as the specified subLen. + + @param subLen + the length of the substring. + + @return + the index (starting at 0) of the first character of the first occurrence + of the substring within the string, or -1 if the substring does not occur. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_str_lastIndexOfStr_WithLength( + const char * str, sal_Int32 len, const char * subStr, sal_Int32 subLen ) SAL_THROW_EXTERN_C(); + +/** Replace all occurrences of a single character within a string. + + If oldChar does not occur within str, then the string is not modified. + The string must be null-terminated. + + @param str + a null-terminated string. + + @param oldChar + the old character. + + @param newChar + the new character. + */ +SAL_DLLPUBLIC void SAL_CALL rtl_str_replaceChar( + char * str, char oldChar, char newChar ) SAL_THROW_EXTERN_C(); + +/** Replace all occurrences of a single character within a string. + + If oldChar does not occur within str, then the string is not modified. + + @param str + a string. Need not be null-terminated, but must be at least as long as + the specified len. + + @param len + the length of the string. + + @param oldChar + the old character. + + @param newChar + the new character. + */ +SAL_DLLPUBLIC void SAL_CALL rtl_str_replaceChar_WithLength( + char * str, sal_Int32 len, char oldChar, char newChar ) SAL_THROW_EXTERN_C(); + +/** Convert all ASCII uppercase letters to lowercase within a string. + + The characters with values between 65 and 90 (ASCII A--Z) are replaced + with values between 97 and 122 (ASCII a--z). The string must be + null-terminated. + + @param str + a null-terminated string. + */ +SAL_DLLPUBLIC void SAL_CALL rtl_str_toAsciiLowerCase( + char * str ) SAL_THROW_EXTERN_C(); + +/** Convert all ASCII uppercase letters to lowercase within a string. + + The characters with values between 65 and 90 (ASCII A--Z) are replaced + with values between 97 and 122 (ASCII a--z). + + @param str + a string. Need not be null-terminated, but must be at least as long as + the specified len. + + @param len + the length of the string. + */ +SAL_DLLPUBLIC void SAL_CALL rtl_str_toAsciiLowerCase_WithLength( + char * str, sal_Int32 len ) SAL_THROW_EXTERN_C(); + +/** Convert all ASCII lowercase letters to uppercase within a string. + + The characters with values between 97 and 122 (ASCII a--z) are replaced + with values between 65 and 90 (ASCII A--Z). The string must be + null-terminated. + + @param str + a null-terminated string. + */ +SAL_DLLPUBLIC void SAL_CALL rtl_str_toAsciiUpperCase( + char * str ) SAL_THROW_EXTERN_C(); + +/** Convert all ASCII lowercase letters to uppercase within a string. + + The characters with values between 97 and 122 (ASCII a--z) are replaced + with values between 65 and 90 (ASCII A--Z). + + @param str + a string. Need not be null-terminated, but must be at least as long as + the specified len. + + @param len + the length of the string. + */ +SAL_DLLPUBLIC void SAL_CALL rtl_str_toAsciiUpperCase_WithLength( + char * str, sal_Int32 len ) SAL_THROW_EXTERN_C(); + +/** Remove white space from both ends of a string. + + All characters with values less than or equal to 32 (the space character) + are considered to be white space. This function cannot be used for + language-specific operations. The string must be null-terminated. + + @param str + a null-terminated string. + + @return + the new length of the string. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_str_trim( + char * str ) SAL_THROW_EXTERN_C(); + +/** Remove white space from both ends of the string. + + All characters with values less than or equal to 32 (the space character) + are considered to be white space. This function cannot be used for + language-specific operations. The string must be null-terminated. + + @param str + a string. Need not be null-terminated, but must be at least as long as + the specified len. + + @param len + the original length of the string. + + @return + the new length of the string. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_str_trim_WithLength( + char * str, sal_Int32 len ) SAL_THROW_EXTERN_C(); + +/** Create the string representation of a boolean. + + If b is true, the buffer is filled with the string "true" and 4 is + returned. If b is false, the buffer is filled with the string "false" and + 5 is returned. This function cannot be used for language-specific + operations. + + @param str + a buffer that is big enough to hold the result and the terminating NUL + character. You should use the RTL_STR_MAX_VALUEOFBOOLEAN define to create + a buffer that is big enough. + + @param b + a boolean value. + + @return + the length of the string. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_str_valueOfBoolean( + char * str, sal_Bool b ) SAL_THROW_EXTERN_C(); +#define RTL_STR_MAX_VALUEOFBOOLEAN 6 + +/** Create the string representation of a character. + + @param str + a buffer that is big enough to hold the result and the terminating NUL + character. You should use the RTL_STR_MAX_VALUEOFCHAR define to create a + buffer that is big enough. + + @param ch + a character value. + + @return + the length of the string. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_str_valueOfChar( + char * str, char ch ) SAL_THROW_EXTERN_C(); +#define RTL_STR_MAX_VALUEOFCHAR 2 + +/** Create the string representation of an integer. + + This function cannot be used for language-specific operations. + + @param str + a buffer that is big enough to hold the result and the terminating NUL + character. You should use the RTL_STR_MAX_VALUEOFINT32 define to create a + buffer that is big enough. + + @param i + an integer value. + + @param radix + the radix. Must be between RTL_STR_MIN_RADIX (2) and RTL_STR_MAX_RADIX + (36), inclusive. + + @return + the length of the string. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_str_valueOfInt32( + char * str, sal_Int32 i, sal_Int16 radix ) SAL_THROW_EXTERN_C(); +#define RTL_STR_MIN_RADIX 2 +#define RTL_STR_MAX_RADIX 36 +#define RTL_STR_MAX_VALUEOFINT32 33 + +/** Create the string representation of a long integer. + + This function cannot be used for language-specific operations. + + @param str + a buffer that is big enough to hold the result and the terminating NUL + character. You should use the RTL_STR_MAX_VALUEOFINT64 define to create a + buffer that is big enough. + + @param l + a long integer value. + + @param radix + the radix. Must be between RTL_STR_MIN_RADIX (2) and RTL_STR_MAX_RADIX + (36), inclusive. + + @return + the length of the string. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_str_valueOfInt64( + char * str, sal_Int64 l, sal_Int16 radix ) SAL_THROW_EXTERN_C(); +#define RTL_STR_MAX_VALUEOFINT64 65 + +/** Create the string representation of an unsigned long integer. + + This function cannot be used for language-specific operations. + + @param str + a buffer that is big enough to hold the result and the terminating NUL + character. You should use the RTL_STR_MAX_VALUEOFUINT64 define to create a + buffer that is big enough. + + @param l + a long integer value. + + @param radix + the radix. Must be between RTL_STR_MIN_RADIX (2) and RTL_STR_MAX_RADIX + (36), inclusive. + + @return + the length of the string. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_str_valueOfUInt64( + char * str, sal_uInt64 l, sal_Int16 radix ) SAL_THROW_EXTERN_C(); +#define RTL_STR_MAX_VALUEOFUINT64 65 + +/** Create the string representation of a float. + + This function cannot be used for language-specific conversion. + + @param str + a buffer that is big enough to hold the result and the terminating NUL + character. You should use the RTL_STR_MAX_VALUEOFFLOAT define to create a + buffer that is big enough. + + @param f + a float value. + + @return + the length of the string. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_str_valueOfFloat( + char * str, float f ) SAL_THROW_EXTERN_C(); +#define RTL_STR_MAX_VALUEOFFLOAT 15 + +/** Create the string representation of a double. + + This function cannot be used for language-specific conversion. + + @param str + a buffer that is big enough to hold the result and the terminating NUL + character. You should use the RTL_STR_MAX_VALUEOFDOUBLE define to create + a buffer that is big enough. + + @param d + a double value. + + @return + the length of the string. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_str_valueOfDouble( + char * str, double d ) SAL_THROW_EXTERN_C(); +#define RTL_STR_MAX_VALUEOFDOUBLE 25 + +/** Interpret a string as a boolean. + + This function cannot be used for language-specific conversion. The string + must be null-terminated. + + @param str + a null-terminated string. + + @return + true if the string is "1" or "true" in any ASCII case, false otherwise. + */ +SAL_DLLPUBLIC sal_Bool SAL_CALL rtl_str_toBoolean( + const char * str ) SAL_THROW_EXTERN_C(); + +/** Interpret a string as an integer. + + This function cannot be used for language-specific conversion. The string + must be null-terminated. + + @param str + a null-terminated string. + + @param radix + the radix. Must be between RTL_STR_MIN_RADIX (2) and RTL_STR_MAX_RADIX + (36), inclusive. + + @return + the integer value represented by the string, or 0 if the string does not + represent an integer. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_str_toInt32( + const char * str, sal_Int16 radix ) SAL_THROW_EXTERN_C(); + +/** Interpret a string as an unsigned integer. + + This function cannot be used for language-specific conversion. The string + must be null-terminated. + + @param str + a null-terminated string. + + @param radix + the radix. Must be between RTL_USTR_MIN_RADIX (2) and RTL_USTR_MAX_RADIX + (36), inclusive. + + @return + the unsigned integer value represented by the string, or 0 if the string + does not represent an unsigned integer. + + @since LibreOffice 4.2 + */ +SAL_DLLPUBLIC sal_uInt32 SAL_CALL rtl_str_toUInt32( + const char * str, sal_Int16 radix ) SAL_THROW_EXTERN_C(); + +/** Interpret a string as a long integer. + + This function cannot be used for language-specific conversion. The string + must be null-terminated. + + @param str + a null-terminated string. + + @param radix + the radix. Must be between RTL_STR_MIN_RADIX (2) and RTL_STR_MAX_RADIX + (36), inclusive. + + @return + the long integer value represented by the string, or 0 if the string does + not represent a long integer. + */ +SAL_DLLPUBLIC sal_Int64 SAL_CALL rtl_str_toInt64( + const char * str, sal_Int16 radix ) SAL_THROW_EXTERN_C(); + +/** Interpret a string as a long integer. + + This function cannot be used for language-specific conversion. + + @param str + a string. + + @param radix + the radix. Must be between RTL_STR_MIN_RADIX (2) and RTL_STR_MAX_RADIX + (36), inclusive. + + @param nStrLength + number of chars to process + + @return + the long integer value represented by the string, or 0 if the string does + not represent a long integer. + + @internal + @since LibreOffice 6.4 +*/ +SAL_DLLPUBLIC sal_Int64 SAL_CALL rtl_str_toInt64_WithLength( + const char * str, sal_Int16 radix, sal_Int32 nStrLength ) SAL_THROW_EXTERN_C(); + +/** Interpret a string as an unsigned long integer. + + This function cannot be used for language-specific conversion. The string + must be null-terminated. + + @param str + a null-terminated string. + + @param radix + the radix. Must be between RTL_USTR_MIN_RADIX (2) and RTL_USTR_MAX_RADIX + (36), inclusive. + + @return + the unsigned long integer value represented by the string, or 0 if the + string does not represent an unsigned long integer. + + @since LibreOffice 4.1 + */ +SAL_DLLPUBLIC sal_uInt64 SAL_CALL rtl_str_toUInt64( + const char * str, sal_Int16 radix ) SAL_THROW_EXTERN_C(); + +/** Interpret a string as a float. + + This function cannot be used for language-specific conversion. The string + must be null-terminated. + + @param str + a null-terminated string. + + @return + the float value represented by the string, or 0.0 if the string does not + represent a float. + */ +SAL_DLLPUBLIC float SAL_CALL rtl_str_toFloat( + const char * str ) SAL_THROW_EXTERN_C(); + +/** Interpret a string as a double. + + This function cannot be used for language-specific conversion. The string + must be null-terminated. + + @param str + a null-terminated string. + + @return + the float value represented by the string, or 0.0 if the string does not + represent a double. + */ +SAL_DLLPUBLIC double SAL_CALL rtl_str_toDouble( + const char * str ) SAL_THROW_EXTERN_C(); + +/* ======================================================================= */ + +/** @cond INTERNAL */ +/** The implementation of a byte string. + */ +typedef struct _rtl_String +{ + oslInterlockedCount refCount; /* opaque */ + sal_Int32 length; + char buffer[1]; +} rtl_String; +/** @endcond */ + +/* ----------------------------------------------------------------------- */ + +/** Increment the reference count of a string. + + @param str + a string. + */ +SAL_DLLPUBLIC void SAL_CALL rtl_string_acquire( rtl_String * str ) SAL_THROW_EXTERN_C(); + +/** Decrement the reference count of a string. + + If the count goes to zero than the string data is deleted. + + @param str + a string. + */ +SAL_DLLPUBLIC void SAL_CALL rtl_string_release( rtl_String * str ) SAL_THROW_EXTERN_C(); + +/** Allocate a new string containing no characters. + + @param newStr + pointer to the new string. The pointed-to data must be null or a valid + string. + */ +SAL_DLLPUBLIC void SAL_CALL rtl_string_new( rtl_String ** newStr ) SAL_THROW_EXTERN_C(); + +/** Allocate a new string containing space for a given number of characters. + + The reference count of the new string will be 1. The length of the string + will be nLen. This function does not handle out-of-memory conditions. + + For failed allocation this method returns NULL. + + The characters of the capacity are not cleared, and the length is set to + nLen, unlike the similar method of rtl_String_new_WithLength which + zeros out the buffer, and sets the length to 0. So should be somewhat + more efficient for allocating a new string. + + call rtl_String_release to release the string + alternatively pass ownership to an OUString with + rtl::OUString(newStr, SAL_NO_ACQUIRE); + + @param[out] nLen the number of characters. Must be >= 0. + + @return pointer to the new string. + + @since LibreOffice 4.1 + */ +SAL_DLLPUBLIC rtl_String * SAL_CALL rtl_string_alloc(sal_Int32 nLen) SAL_THROW_EXTERN_C(); + +/** Allocate a new string containing space for a given number of characters. + + If len is greater than zero, the reference count of the new string will be + 1. The values of all characters are set to 0 and the length of the string + is 0. This function does not handle out-of-memory conditions. + + @param newStr + pointer to the new string. The pointed-to data must be null or a valid + string. + + @param len + the number of characters. + */ +SAL_DLLPUBLIC void SAL_CALL rtl_string_new_WithLength( rtl_String ** newStr, sal_Int32 len ) SAL_THROW_EXTERN_C(); + +/** Allocate a new string that contains a copy of another string. + + If the length of value is greater than zero, the reference count of the + new string will be 1. This function does not handle out-of-memory + conditions. + + @param newStr + pointer to the new string. The pointed-to data must be null or a valid + string. + + @param value + a valid string. + */ +SAL_DLLPUBLIC void SAL_CALL rtl_string_newFromString( rtl_String ** newStr, const rtl_String * value ) SAL_THROW_EXTERN_C(); + +/** Allocate a new string that contains a copy of a character array. + + If the length of value is greater than zero, the reference count of the + new string will be 1. This function does not handle out-of-memory + conditions. + + @param newStr + pointer to the new string. The pointed-to data must be null or a valid + string. + + @param value + a null-terminated character array. + */ +SAL_DLLPUBLIC void SAL_CALL rtl_string_newFromStr( rtl_String ** newStr, const char * value ) SAL_THROW_EXTERN_C(); + +/** Allocate a new string that contains a copy of a character array. + + If the length of value is greater than zero, the reference count of the + new string will be 1. This function does not handle out-of-memory + conditions. + + @param newStr + pointer to the new string. The pointed-to data must be null or a valid + string. + + @param value + a character array. Need not be null-terminated, but must be at least as + long as the specified len. + + @param len + the length of the character array. + */ +SAL_DLLPUBLIC void SAL_CALL rtl_string_newFromStr_WithLength( rtl_String ** newStr, const char * value, sal_Int32 len ) SAL_THROW_EXTERN_C(); + +/** Allocate a new string that is a substring of this string. + + The substring begins at the specified beginIndex and contains count + characters. Meaningless combinations such as negative beginIndex, + or beginIndex + count greater than the length of the string have + undefined behaviour. + + @param[out] newStr the specified substring. + @param[in] from the String to take the substring from. + @param[in] beginIndex the beginning index, inclusive. + @param[in] count the number of characters. + + @since LibreOffice 4.0 + */ +SAL_DLLPUBLIC void SAL_CALL rtl_string_newFromSubString( + rtl_String ** newStr, const rtl_String * from, + sal_Int32 beginIndex, sal_Int32 count ) SAL_THROW_EXTERN_C(); + +/** + @internal + @since LibreOffice 3.6 +*/ +SAL_DLLPUBLIC void SAL_CALL rtl_string_newFromLiteral( rtl_String ** newStr, const char * value, sal_Int32 len, sal_Int32 allocExtra ) SAL_THROW_EXTERN_C(); + +/** Assign a new value to a string. + + First releases any value str might currently hold, then acquires + rightValue. + + @param str + pointer to the string. The pointed-to data must be null or a valid + string. + + @param rightValue + a valid string. + */ +SAL_DLLPUBLIC void SAL_CALL rtl_string_assign( rtl_String ** str, rtl_String * rightValue ) SAL_THROW_EXTERN_C(); + +/** Return the length of a string. + + The length is equal to the number of characters in the string. + + @param str + a valid string. + + @return + the length of the string. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_string_getLength( const rtl_String * str ) SAL_THROW_EXTERN_C(); + +/** Return a pointer to the underlying character array of a string. + + @param str + a valid string. + + @return + a pointer to the null-terminated character array. + */ +SAL_DLLPUBLIC char * SAL_CALL rtl_string_getStr( rtl_String * str ) SAL_THROW_EXTERN_C(); + +/** Create a new string that is the concatenation of two other strings. + + The new string does not necessarily have a reference count of 1 (in cases + where one of the two other strings is empty), so it must not be modified + without checking the reference count. This function does not handle + out-of-memory conditions. + + @param newStr + pointer to the new string. The pointed-to data must be null or a valid + string. + + @param left + a valid string. + + @param right + a valid string. + */ +SAL_DLLPUBLIC void SAL_CALL rtl_string_newConcat( rtl_String ** newStr, rtl_String * left, rtl_String * right ) SAL_THROW_EXTERN_C(); + +/** Create a new string by replacing a substring of another string. + + The new string results from replacing a number of characters (count), + starting at the specified position (index) in the original string (str), + with some new substring (subStr). If subStr is null, then only a number + of characters is deleted. + + The new string does not necessarily have a reference count of 1, so it + must not be modified without checking the reference count. This function + does not handle out-of-memory conditions. + + @param newStr + pointer to the new string. The pointed-to data must be null or a valid + string. + + @param str + a valid string. + + @param idx + the index into str at which to start replacement. Must be between 0 and + the length of str, inclusive. + + @param count + the number of characters to remove. Must not be negative, and the sum of + index and count must not exceed the length of str. + + @param subStr + either null or a valid string to be inserted. + */ +SAL_DLLPUBLIC void SAL_CALL rtl_string_newReplaceStrAt( + rtl_String ** newStr, rtl_String * str, sal_Int32 idx, sal_Int32 count, rtl_String * subStr ) SAL_THROW_EXTERN_C(); + +#ifdef LIBO_INTERNAL_ONLY +SAL_DLLPUBLIC void SAL_CALL rtl_string_newReplaceStrAt_WithLength ( + rtl_String ** newStr, rtl_String * str, sal_Int32 idx, sal_Int32 count, char const * subStr, sal_Int32 substrLen ) SAL_THROW_EXTERN_C(); +#endif + +/** Create a new string by replacing all occurrences of a single character + within another string. + + The new string results from replacing all occurrences of oldChar in str + with newChar. + + The new string does not necessarily have a reference count of 1 (in cases + where oldChar does not occur in str), so it must not be modified without + checking the reference count. This function does not handle out-of-memory + conditions. + + @param newStr + pointer to the new string. The pointed-to data must be null or a valid + string. + + @param str + a valid string. + + @param oldChar + the old character. + + @param newChar + the new character. + */ +SAL_DLLPUBLIC void SAL_CALL rtl_string_newReplace( + rtl_String ** newStr, rtl_String * str, char oldChar, char newChar ) SAL_THROW_EXTERN_C(); + +/** Create a new string by replacing the first occurrence of a given substring + with another substring. + + @param[in, out] newStr pointer to the new string; must not be null; must + point to null or a valid rtl_String + + @param str pointer to the original string; must not be null + + @param from pointer to the substring to be replaced; must not be null and + must point to memory of at least \p fromLength bytes + + @param fromLength the length of the \p from substring; must be non-negative + + @param to pointer to the replacing substring; must not be null and must + point to memory of at least \p toLength bytes + + @param toLength the length of the \p to substring; must be non-negative + + @param[in,out] index pointer to a start index, must not be null; upon entry + to the function its value is the index into the original string at which to + start searching for the \p from substring, the value must be non-negative + and not greater than the original string's length; upon exit from the + function its value is the index into the original string at which the + replacement took place or -1 if no replacement took place + + @since LibreOffice 3.6 +*/ +SAL_DLLPUBLIC void SAL_CALL rtl_string_newReplaceFirst( + rtl_String ** newStr, rtl_String * str, char const * from, + sal_Int32 fromLength, char const * to, sal_Int32 toLength, + sal_Int32 * index) SAL_THROW_EXTERN_C(); + +/** Create a new string by replacing all occurrences of a given substring with + another substring. + + Replacing subsequent occurrences picks up only after a given replacement. + That is, replacing from "xa" to "xx" in "xaa" results in "xxa", not "xxx". + + @param[in, out] newStr pointer to the new string; must not be null; must + point to null or a valid rtl_String + + @param str pointer to the original string; must not be null + + @param from pointer to the substring to be replaced; must not be null and + must point to memory of at least \p fromLength bytes + + @param fromLength the length of the \p from substring; must be non-negative + + @param to pointer to the replacing substring; must not be null and must + point to memory of at least \p toLength bytes + + @param toLength the length of the \p to substring; must be non-negative + + @since LibreOffice 3.6 +*/ +SAL_DLLPUBLIC void SAL_CALL rtl_string_newReplaceAll( + rtl_String ** newStr, rtl_String * str, char const * from, + sal_Int32 fromLength, char const * to, sal_Int32 toLength) + SAL_THROW_EXTERN_C(); + +/** Create a new string by converting all ASCII uppercase letters to lowercase + within another string. + + The new string results from replacing all characters with values between + 65 and 90 (ASCII A--Z) by values between 97 and 122 (ASCII a--z). + + This function cannot be used for language-specific conversion. The new + string does not necessarily have a reference count of 1 (in cases where + no characters need to be converted), so it must not be modified without + checking the reference count. This function does not handle out-of-memory + conditions. + + @param newStr + pointer to the new string. The pointed-to data must be null or a valid + string. + + @param str + a valid string. + */ +SAL_DLLPUBLIC void SAL_CALL rtl_string_newToAsciiLowerCase( + rtl_String ** newStr, rtl_String * str ) SAL_THROW_EXTERN_C(); + +/** Create a new string by converting all ASCII lowercase letters to uppercase + within another string. + + The new string results from replacing all characters with values between + 97 and 122 (ASCII a--z) by values between 65 and 90 (ASCII A--Z). + + This function cannot be used for language-specific conversion. The new + string does not necessarily have a reference count of 1 (in cases where + no characters need to be converted), so it must not be modified without + checking the reference count. This function does not handle out-of-memory + conditions. + + @param newStr + pointer to the new string. The pointed-to data must be null or a valid + string. + + @param str + a valid string. + */ +SAL_DLLPUBLIC void SAL_CALL rtl_string_newToAsciiUpperCase( + rtl_String ** newStr, rtl_String * str ) SAL_THROW_EXTERN_C(); + +/** Create a new string by removing white space from both ends of another + string. + + The new string results from removing all characters with values less than + or equal to 32 (the space character) form both ends of str. + + This function cannot be used for language-specific conversion. The new + string does not necessarily have a reference count of 1 (in cases where + no characters need to be removed), so it must not be modified without + checking the reference count. This function does not handle out-of-memory + conditions. + + @param newStr + pointer to the new string. The pointed-to data must be null or a valid + string. + + @param str + a valid string. + */ +SAL_DLLPUBLIC void SAL_CALL rtl_string_newTrim( + rtl_String ** newStr, rtl_String * str ) SAL_THROW_EXTERN_C(); + +/** Create a new string by extracting a single token from another string. + + Starting at index, the next token is searched for. If there is no + such token, the result is an empty string. Otherwise, all characters from + the start of that token and up to, but not including the next occurrence + of cTok make up the resulting token. The return value is the position of + the next token, or -1 if no more tokens follow. + + Example code could look like + rtl_String * pToken = NULL; + sal_Int32 nIndex = 0; + do + { + ... + nIndex = rtl_string_getToken(&pToken, pStr, 0, ';', nIndex); + ... + } + while (nIndex >= 0); + + The new string does not necessarily have a reference count of 1, so it + must not be modified without checking the reference count. This function + does not handle out-of-memory conditions. + + @param newStr + pointer to the new string. The pointed-to data must be null or a valid + string. If either token or index is negative, an empty token is stored in + newStr (and -1 is returned). + + @param str + a valid string. + + @param token + the number of the token to return, starting at index. + + @param cTok + the character that separates the tokens. + + @param idx + the position at which searching for the token starts. Must not be greater + than the length of str. + + @return + the index of the next token, or -1 if no more tokens follow. + */ +SAL_DLLPUBLIC sal_Int32 SAL_CALL rtl_string_getToken( + rtl_String ** newStr , rtl_String * str, sal_Int32 token, char cTok, sal_Int32 idx ) SAL_THROW_EXTERN_C(); + +/* ======================================================================= */ + +/** Supply an ASCII string literal together with its length. + + This macro can be used to compute (some of) the arguments in function calls + like rtl::OString(RTL_CONSTASCII_STRINGPARAM("foo")) or + rtl::OUString::equalsAsciiL(RTL_CONSTASCII_STRINGPARAM("foo")). + + @param constAsciiStr + must be an expression of type "(possibly cv-qualified reference to) array of + (possibly cv-qualified) char." Each element of the referenced array must + represent an ASCII value in the range 0x00--0x7F. The last element of the + referenced array is not considered part of the represented ASCII string, and + its value should be 0x00. Depending on where this macro is used, the nature + of the supplied expression might be further restricted. +*/ +// The &foo[0] trick is intentional, it makes sure the type is char* or const char* +// (plain cast to const char* would not work with non-const char foo[]="a", which seems to be allowed). +// This is to avoid mistaken use with functions that accept string literals +// (i.e. const char (&)[N]) where usage of this macro otherwise could match +// the argument and a following int argument with a default value (e.g. OString::match()). +#define RTL_CONSTASCII_STRINGPARAM( constAsciiStr ) (&(constAsciiStr)[0]), \ + ((sal_Int32)SAL_N_ELEMENTS(constAsciiStr)-1) + +/** Supply the length of an ASCII string literal. + + This macro can be used to compute arguments in function calls like + rtl::OUString::match(other, RTL_CONSTASCII_LENGTH("prefix")). + + @param constAsciiStr + must be an expression of type "(possibly cv-qualified reference to) array of + (possibly cv-qualified) char." Each element of the referenced array must + represent an ASCII value in the range 0x00--0x7F. The last element of the + referenced array is not considered part of the represented ASCII string, and + its value should be 0x00. Depending on where this macro is used, the nature + of the supplied expression might be further restricted. +*/ +#define RTL_CONSTASCII_LENGTH( constAsciiStr ) ((sal_Int32)(SAL_N_ELEMENTS(constAsciiStr)-1)) + +/* ======================================================================= */ + +/* predefined constants for String-Conversion */ +#define OUSTRING_TO_OSTRING_CVTFLAGS (RTL_UNICODETOTEXT_FLAGS_UNDEFINED_DEFAULT |\ + RTL_UNICODETOTEXT_FLAGS_INVALID_DEFAULT |\ + RTL_UNICODETOTEXT_FLAGS_UNDEFINED_REPLACE |\ + RTL_UNICODETOTEXT_FLAGS_PRIVATE_MAPTO0) + +/* ----------------------------------------------------------------------- */ + +/** Create a new byte string by converting a Unicode string, using a specific + text encoding. + + The lengths of the byte string and the Unicode string may differ (e.g., + for double-byte encodings, UTF-7, UTF-8). + + If the length of the Unicode string is greater than zero, the reference + count of the new string will be 1. + + If an out-of-memory condition occurs, newStr will point to a null pointer + upon return. + + @param newStr + pointer to the new string. The pointed-to data must be null or a valid + string. + + @param str + a Unicode character array. Need not be null-terminated, but must be at + least as long as the specified len. + + @param len + the length of the Unicode character array. + + @param encoding + the text encoding to use for conversion. + + @param convertFlags + flags which control the conversion. Either use + OUSTRING_TO_OSTRING_CVTFLAGS, or see + <http://udk.openoffice.org/cpp/man/spec/textconversion.html> for more + details. + */ +SAL_DLLPUBLIC void SAL_CALL rtl_uString2String( + rtl_String ** newStr, const sal_Unicode * str, sal_Int32 len, rtl_TextEncoding encoding, sal_uInt32 convertFlags ) SAL_THROW_EXTERN_C(); + +/** + Converts a Unicode string to a byte string, signalling failure. + + @param pTarget + An out parameter receiving the converted string. Must not be null itself, and + must contain either null or a pointer to a valid rtl_String; the contents are + not modified if conversion fails (rtl_convertUStringToString returns false). + + @param pSource + The Unicode string. May only be null if nLength is zero. + + @param nLength + The length of the Unicode string. Must be non-negative. + + @param nEncoding + The text encoding to convert into. Must be an octet encoding (i.e., + rtl_isOctetTextEncoding(nEncoding) must return true). + + @param nFlags + A combination of RTL_UNICODETOTEXT_FLAGS that detail how to do the conversion + (see rtl_convertUnicodeToText). RTL_UNICODETOTEXT_FLAGS_FLUSH need not be + included, it is implicitly assumed. Typical uses are either + RTL_UNICODETOTEXT_FLAGS_UNDEFINED_ERROR | + RTL_UNICODETOTEXT_FLAGS_INVALID_ERROR (fail if a Unicode character cannot be + converted to the target nEncoding) or OUSTRING_TO_OSTRING_CVTFLAGS (make a + best efforts conversion). + + @return + True if the conversion succeeded, false otherwise. + */ +SAL_DLLPUBLIC sal_Bool SAL_CALL rtl_convertUStringToString( + rtl_String ** pTarget, + sal_Unicode const * pSource, + sal_Int32 nLength, + rtl_TextEncoding nEncoding, + sal_uInt32 nFlags) + SAL_THROW_EXTERN_C(); + +/** Ensure a string has enough space for a given number of characters. + + If the given string is large enough and has refcount of 1, it is not altered in any way. + Otherwise it is replaced by a copy that has enough space for the given number of characters, + data from the source string is copied to the beginning of it, the content of the remaining + capacity undefined, the string has refcount of 1, and refcount of the original string is decreased. + + @param str + pointer to the string. The pointed-to data must be a valid string. + + @param size + the number of characters + + @since LibreOffice 4.1 + @internal + */ +SAL_DLLPUBLIC void SAL_CALL rtl_string_ensureCapacity( rtl_String ** str, sal_Int32 size ) SAL_THROW_EXTERN_C(); + +#ifdef __cplusplus +} +#endif + +#endif // INCLUDED_RTL_STRING_H + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |