// SPDX-License-Identifier: MPL-2.0
// Copyright (c) Yuxuan Shui <yshuiv7@gmail.com>
#pragma once
#include <ctype.h>
#include <stddef.h>

#define mstrncmp(s1, s2) strncmp((s1), (s2), strlen(s1))

char *mstrjoin(const char *src1, const char *src2);
char *
mstrjoin3(const char *src1, const char *src2, const char *src3);
void mstrextend(char **psrc1, const char *src2);

/// Parse a floating point number of form (+|-)?[0-9]*(\.[0-9]*)
double strtod_simple(const char *, const char **);

static inline int uitostr(unsigned int n, char *buf) {
  int ret = 0;
  unsigned int tmp = n;
  while (tmp > 0) {
    tmp /= 10;
    ret++;
  }

  if (ret == 0)
    ret = 1;

  int pos = ret;
  while (pos--) {
    buf[pos] = n%10 + '0';
    n /= 10;
  }
  return ret;
}

static inline const char *
skip_space_const(const char *src) {
  if (!src)
    return NULL;
  while (*src && isspace(*src))
    src++;
  return src;
}

static inline char *
skip_space_mut(char *src) {
  if (!src)
    return NULL;
  while (*src && isspace(*src))
    src++;
  return src;
}

#define skip_space(x) _Generic((x), \
  char *: skip_space_mut, \
  const char *: skip_space_const \
)(x)