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#ifndef AWS_COMMON_STRING_INL
#define AWS_COMMON_STRING_INL
/**
* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
* SPDX-License-Identifier: Apache-2.0.
*/
#include <aws/common/string.h>
#include <ctype.h>
AWS_EXTERN_C_BEGIN
/**
* Equivalent to str->bytes.
*/
AWS_STATIC_IMPL
const uint8_t *aws_string_bytes(const struct aws_string *str) {
AWS_PRECONDITION(aws_string_is_valid(str));
return str->bytes;
}
/**
* Equivalent to `(const char *)str->bytes`.
*/
AWS_STATIC_IMPL
const char *aws_string_c_str(const struct aws_string *str) {
AWS_PRECONDITION(aws_string_is_valid(str));
return (const char *)str->bytes;
}
/**
* Evaluates the set of properties that define the shape of all valid aws_string structures.
* It is also a cheap check, in the sense it run in constant time (i.e., no loops or recursion).
*/
AWS_STATIC_IMPL
bool aws_string_is_valid(const struct aws_string *str) {
return str && AWS_MEM_IS_READABLE(&str->bytes[0], str->len + 1) && str->bytes[str->len] == 0;
}
/**
* Best-effort checks aws_string invariants, when the str->len is unknown
*/
AWS_STATIC_IMPL
bool aws_c_string_is_valid(const char *str) {
/* Knowing the actual length to check would require strlen(), which is
* a) linear time in the length of the string
* b) could already cause a memory violation for a non-zero-terminated string.
* But we know that a c-string must have at least one character, to store the null terminator
*/
return str && AWS_MEM_IS_READABLE(str, 1);
}
/**
* Evaluates if a char is a white character.
*/
AWS_STATIC_IMPL
bool aws_char_is_space(uint8_t c) {
return aws_isspace(c);
}
AWS_EXTERN_C_END
#endif /* AWS_COMMON_STRING_INL */
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