42 lines
875 B
C
42 lines
875 B
C
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typedef struct ArgMeta_s
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{
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char chr;
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uint8_t size;
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// This is a bitset of acceptable overflow states,
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// where accept signed = 1, accept unsigned = 2.
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// 1 -> signed, 2 -> unsigned, 3 -> whatever
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uint8_t sign;
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uint8_t rel;
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} ArgMeta;
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const ArgMeta ARGS[] = {
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{'R', 1, 2, 0},
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{'1', 1, 3, 0},
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{'b', 1, 1, 0},
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{'B', 1, 2, 0},
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{'2', 2, 3, 0},
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{'o', 2, 1, 1},
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{'h', 2, 1, 0},
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{'H', 2, 2, 0},
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{'4', 4, 3, 0},
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{'w', 4, 1, 0},
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{'O', 4, 1, 1},
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{'W', 4, 2, 0},
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{'8', 8, 3, 0},
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{'d', 8, 1, 0},
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{'D', 8, 2, 0},
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{0},
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};
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const size_t NARGS = sizeof(ARGS) / sizeof(ARGS[0]);
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ArgMeta arg_meta(char arg)
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{
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for (size_t ii = 0; ii < NARGS; ii += 1)
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{
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ArgMeta meta = ARGS[ii];
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if (meta.chr == arg)
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{
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return meta;
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}
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}
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return ARGS[NARGS - 1];
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}
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