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4cfed3c98f
Avoid allocating a *ton* of data per charmap Stop relying on uninitialized data in charmap nodes Only initialize charmap nodes lazily
47 lines
724 B
C
47 lines
724 B
C
/*
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* This file is part of RGBDS.
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*
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* Copyright (c) 1997-2019, Carsten Sorensen and RGBDS contributors.
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*
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* SPDX-License-Identifier: MIT
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*/
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#include <stdint.h>
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#include "asm/main.h"
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#include "asm/util.h"
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#include "asm/warning.h"
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#include "extern/utf8decoder.h"
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/*
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* Calculate the hash value for a string
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*/
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uint32_t calchash(const char *s)
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{
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uint32_t hash = 5381;
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while (*s != 0)
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hash = (hash * 33) ^ (*s++);
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return hash;
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}
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size_t readUTF8Char(uint8_t *dest, char const *src)
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{
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uint32_t state = 0;
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uint32_t codep;
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size_t i = 0;
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for (;;) {
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if (decode(&state, &codep, (uint8_t)src[i]) == 1)
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fatalerror("invalid UTF-8 character\n");
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dest[i] = src[i];
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i++;
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if (state == 0)
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return i;
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}
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}
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