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/* * Copyright (C) the libgit2 contributors. All rights reserved. * * This file is part of libgit2, distributed under the GNU GPL v2 with * a Linking Exception. For full terms see the included COPYING file. */ #ifndef INCLUDE_utf8_h__ #define INCLUDE_utf8_h__ #include "common.h" /* * Iterate through an UTF-8 string, yielding one codepoint at a time. * * @param out pointer where to store the current codepoint * @param str current position in the string * @param str_len size left in the string * @return length in bytes of the read codepoint; -1 if the codepoint was invalid */ extern int git_utf8_iterate(uint32_t *out, const char *str, size_t str_len); /** * Returns the number of characters in the given string. * * This function will count invalid codepoints; if any given byte is * not part of a valid UTF-8 codepoint, then it will be counted toward * the length in characters. * * In other words: * 0x24 (U+0024 "$") has length 1 * 0xc2 0xa2 (U+00A2 "¢") has length 1 * 0x24 0xc2 0xa2 (U+0024 U+00A2 "$¢") has length 2 * 0xf0 0x90 0x8d 0x88 (U+10348 "𐍈") has length 1 * 0x24 0xc0 0xc1 0x34 (U+0024 <invalid> <invalid> "4) has length 4 * * @param str string to scan * @param str_len size of the string * @return length in characters of the string */ extern size_t git_utf8_char_length(const char *str, size_t str_len); /** * Iterate through an UTF-8 string and stops after finding any invalid UTF-8 * codepoints. * * @param str string to scan * @param str_len size of the string * @return length in bytes of the string that contains valid data */ extern size_t git_utf8_valid_buf_length(const char *str, size_t str_len); #endif
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10 entries across 10 versions & 1 rubygems