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e05199ca1e
This adds two new directives: newcharmap and setcharmap. newcharmap creates a new charmap and switches to it. setcharmap switches to an existing charmap.
42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
/*
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* This file is part of RGBDS.
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*
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* Copyright (c) 1997-2018, 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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#ifndef RGBDS_ASM_CHARMAP_H
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#define RGBDS_ASM_CHARMAP_H
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#include <stdint.h>
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#define MAXCHARMAPS 512
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#define CHARMAPLENGTH 16
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#define MAXCHARNODES (MAXCHARMAPS * CHARMAPLENGTH + 1)
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/*
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* A node for trie structure.
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*/
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struct Charnode {
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uint8_t code; /* the value in a key-value pair. */
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uint8_t isCode; /* has one if it's a code node, not just a bridge node. */
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struct Charnode *next[256]; /* each index representing the next possible character from its current state. */
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};
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struct Charmap {
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char name[MAXSYMLEN + 1];
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int32_t charCount; /* user-side count. */
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int32_t nodeCount; /* node-side count. */
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struct Charnode nodes[MAXCHARNODES]; /* first node is reserved for the root node in charmap. */
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struct Charmap *next; /* next charmap in hash table bucket */
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};
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void charmap_InitMain(void);
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struct Charmap *charmap_New(const char *name, const char *baseName);
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void charmap_Set(const char *name);
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int32_t charmap_Add(char *input, uint8_t output);
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int32_t charmap_Convert(char **input);
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#endif /* RGBDS_ASM_CHARMAP_H */
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