29 lines
735 B
C
29 lines
735 B
C
#include "forth.h"
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Word* add_primitive(const char* name, void (*code)(Word*), uint8_t flags) {
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if (dict_idx >= DICT_SIZE) {
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printf("Dictionary full\n");
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return NULL;
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}
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Word* w = &dict[dict_idx++];
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w->prev = dict_head;
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dict_head = w;
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size_t len = strlen(name);
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if (len > MAX_NAME_LEN) len = MAX_NAME_LEN;
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w->flags = flags | (uint8_t)len;
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strncpy(w->name, name, len);
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w->name[len] = '\0';
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w->code = code;
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w->body = NULL;
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return w;
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}
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Word* lookup_word(const char* name) {
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for (Word* w = dict_head; w != NULL; w = w->prev) {
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if (w->flags & (1 << 6)) continue; // Skip hidden words
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if (strcmp(w->name, name) == 0) return w;
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}
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return NULL;
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}
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