mirror of
https://git.telodendria.io/Telodendria/Cytoplasm.git
synced 2024-11-25 05:28:48 +03:00
113 lines
4.1 KiB
C
113 lines
4.1 KiB
C
/*
|
|
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person
|
|
* obtaining a copy of this software and associated documentation files
|
|
* (the "Software"), to deal in the Software without restriction,
|
|
* including without limitation the rights to use, copy, modify, merge,
|
|
* publish, distribute, sublicense, and/or sell copies of the Software,
|
|
* and to permit persons to whom the Software is furnished to do so,
|
|
* subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*/
|
|
#ifndef CYTOPLASM_STR_H
|
|
#define CYTOPLASM_STR_H
|
|
|
|
/***
|
|
* @Nm Str
|
|
* @Nd Functions for creating and manipulating strings.
|
|
* @Dd February 15 2023
|
|
* @Xr Memory
|
|
*
|
|
* .Nm
|
|
* provides string-related functions. It is called
|
|
* .Nm ,
|
|
* not String, because some platforms (Windows) do not have
|
|
* case-sensitive filesystems, which poses a problem since
|
|
* .Pa string.h
|
|
* is a standard library header.
|
|
*/
|
|
|
|
#include <stddef.h>
|
|
|
|
/**
|
|
* Take a UTF-8 codepoint and encode it into a string buffer containing
|
|
* between 1 and 4 bytes. The string buffer is allocated on the heap,
|
|
* so it should be freed when it is no longer needed.
|
|
*/
|
|
extern char * StrUtf8Encode(unsigned long);
|
|
|
|
/**
|
|
* Duplicate a null-terminated string, returning a new string on the
|
|
* heap. This is useful when a function takes in a string that it needs
|
|
* to store for long amounts of time, even perhaps after the original
|
|
* string is gone.
|
|
*/
|
|
extern char * StrDuplicate(const char *);
|
|
|
|
/**
|
|
* Extract part of a null-terminated string, returning a new string on
|
|
* the heap containing only the requested subsection. Like the
|
|
* substring functions included with most programming languages, the
|
|
* starting index is inclusive, and the ending index is exclusive.
|
|
*/
|
|
extern char * StrSubstr(const char *, size_t, size_t);
|
|
|
|
/**
|
|
* A varargs function that takes a number of null-terminated strings
|
|
* specified by the first argument, and returns a new string that
|
|
* contains their concatenation. It works similarly to
|
|
* .Xr strcat 3 ,
|
|
* but it takes care of allocating memory big enough to hold all the
|
|
* strings. Any string in the list may be NULL. If a NULL pointer is
|
|
* passed, it is treated like an empty string.
|
|
*/
|
|
extern char * StrConcat(size_t,...);
|
|
|
|
/**
|
|
* Return a boolean value indicating whether or not the null-terminated
|
|
* string consists only of blank characters, as determined by
|
|
* .Xr isblank 3 .
|
|
*/
|
|
extern int StrBlank(const char *str);
|
|
|
|
/**
|
|
* Generate a string of the specified length, containing random
|
|
* lowercase and uppercase letters.
|
|
*/
|
|
extern char * StrRandom(size_t);
|
|
|
|
/**
|
|
* Convert the specified integer into a string, returning the string
|
|
* on the heap, or NULL if there was a memory allocation error. The
|
|
* returned string should be freed by the caller after it is no longer
|
|
* needed.
|
|
*/
|
|
extern char * StrInt(long);
|
|
|
|
/**
|
|
* Compare two strings and determine whether or not they are equal.
|
|
* This is the most common use case of strcmp() in Cytoplasm, but
|
|
* strcmp() doesn't like NULL pointers, so these have to be checked
|
|
* explicitly and can cause problems if they aren't. This function,
|
|
* on the other hand, makes NULL pointers special cases. If both
|
|
* arguments are NULL, then they are considered equal. If only one
|
|
* argument is NULL, they are considered not equal. Otherwise, if
|
|
* no arguments are NULL, a regular strcmp() takes place and this
|
|
* function returns a boolean value indicating whether or not
|
|
* strcmp() returned 0.
|
|
*/
|
|
extern int StrEquals(const char *, const char *);
|
|
|
|
#endif /* CYTOPLASM_STR_H */
|