57 lines
814 B
C
57 lines
814 B
C
#include <stdbool.h>
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#include <stddef.h>
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#include "parse.h"
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const char * parse_skip(const char * s, char c)
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{
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while (*s == c) {
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s++;
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}
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return s;
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}
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static int base10_digit(char c)
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{
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switch (c) {
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case '0': return 0;
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case '1': return 1;
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case '2': return 2;
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case '3': return 3;
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case '4': return 4;
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case '5': return 5;
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case '6': return 6;
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case '7': return 7;
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case '8': return 8;
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case '9': return 9;
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default: return -1;
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}
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}
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const char * parse_base10(const char * s, int * n)
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{
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*n = 0;
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while (true) {
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int digit = base10_digit(*s);
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if (digit == -1)
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break;
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*n *= 10;
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*n += digit;
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s++;
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}
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return s;
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}
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const char * parse_match(const char * s, const char * m)
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{
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while (*m != 0) {
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if (*s++ != *m++) {
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return NULL;
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}
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}
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return s;
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}
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