89 lines
1.6 KiB
C
89 lines
1.6 KiB
C
#include <stddef.h>
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#include <stdint.h>
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#ifndef WL_AMALGAMATION
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#include "basic.h"
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#endif
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b32 is_space(char c)
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{
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return c == ' ' || c == '\t' || c == '\r' || c == '\n';
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}
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b32 is_digit(char c)
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{
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return c >= '0' && c <= '9';
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}
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b32 is_alpha(char c)
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{
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return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z');
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}
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b32 is_printable(char c)
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{
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return c >= ' ' && c <= '~';
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}
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b32 is_hex_digit(char c)
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{
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return (c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F');
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}
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char to_lower(char c)
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{
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if (c >= 'A' && c <= 'Z')
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return c - 'A' + 10;
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return c;
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}
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int hex_digit_to_int(char c)
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{
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if (c >= 'a' && c <= 'f')
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return c - 'a' + 10;
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if (c >= 'A' && c <= 'F')
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return c - 'A' + 10;
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return c - '0';
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}
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b32 streq(String a, String b)
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{
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if (a.len != b.len)
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return false;
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for (int i = 0; i < a.len; i++)
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if (a.ptr[i] != b.ptr[i])
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return false;
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return true;
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}
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b32 streqcase(String a, String b)
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{
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if (a.len != b.len)
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return false;
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for (int i = 0; i < a.len; i++)
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if (to_lower(a.ptr[i]) != to_lower(b.ptr[i]))
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return false;
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return true;
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}
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void *alloc(Arena *a, int len, int align)
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{
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int pad = -(intptr_t) (a->ptr + a->cur) & (align-1);
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if (a->len - a->cur < len + pad)
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return NULL;
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void *ret = a->ptr + a->cur + pad;
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a->cur += pad + len;
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return ret;
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}
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b32 grow_alloc(Arena *a, char *p, int new_len)
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{
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int new_cur = (p - a->ptr) + new_len;
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if (new_cur > a->len)
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return false;
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a->cur = new_cur;
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return true;
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} |