51 lines
1.4 KiB
C
51 lines
1.4 KiB
C
#include "string.h"
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kt_define(string, NULL, NULL);
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Autoarr_define(string);
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// copies str content to new char pointer value (adding '\0' at the end)
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char* string_extract(allocator_ptr al, string str){
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if(str.length==0) return NULL;
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char* cptr=allocator_alloc(al, str.length+1);
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memcpy(cptr, str.ptr, str.length);
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cptr[str.length]=0;
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return cptr;
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}
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// copies src.ptr content to new string and adds \0 at the end
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string string_copy(allocator_ptr al, string src){
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if(!src.ptr)
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throw(ERR_NULLPTR);
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string nstr;
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nstr.length=src.length;
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nstr.ptr=allocator_alloc(al, nstr.length+1);
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memcpy(nstr.ptr, src.ptr, nstr.length);
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nstr.ptr[nstr.length]='\0';
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return nstr;
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}
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// compares two strings, NullPtr-friendly
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bool string_compare(string str0, string str1){
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if(str0.length!=str1.length)
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return false;
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if(!str0.ptr)
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return str1.ptr ? false : true;
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else if(!str1.ptr) return false;
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while(str0.length-->0)
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if(*str0.ptr++ != *str1.ptr++)
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return false;
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return true;
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}
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// creates new string which is reversed variant of <s>
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string string_reverse(allocator_ptr al, string s){
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if(s.length==0)
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return s;
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string r;
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r.ptr=allocator_alloc(al, s.length);
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r.length=s.length;
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for(u32 i=0; i<s.length; i++)
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r.ptr[i]=s.ptr[s.length-i-1];
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return r;
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}
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