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Compat work towards porting vim.

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This commit is contained in:
Andreas Kling 2019-02-26 15:57:59 +01:00
parent 2e5b9d318f
commit a356746d04
17 changed files with 200 additions and 77 deletions
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28
LibC/strings.cpp
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@ -1,16 +1,36 @@
#include <strings.h>
#include <assert.h>
#include <ctype.h>
extern "C" {
int strcasecmp(const char*, const char*)
static char foldcase(char ch)
{
assert(false);
if (isalpha(ch))
return tolower(ch);
return ch;
}
int strncasecmp(const char*, const char*, size_t)
int strcasecmp(const char* s1, const char* s2)
{
assert(false);
for (; foldcase(*s1) == foldcase(*s2); ++s1, ++s2) {
if (*s1 == 0)
return 0;
}
return foldcase(*(const unsigned char*)s1) < foldcase(*(const unsigned char*)s2) ? -1 : 1;
}
int strncasecmp(const char* s1, const char* s2, size_t n)
{
if (!n)
return 0;
do {
if (foldcase(*s1) != foldcase(*s2++))
return foldcase(*(const unsigned char*)s1) - foldcase(*(const unsigned char*)--s2);
if (*s1++ == 0)
break;
} while (--n);
return 0;
}
}