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#include "internal.h"
// split will split the string by the given token.
// returns a stretchy buffer of strings that result from the partition.
// it is the caller's responsibility to clean the memory.
string*
string·split(string s, byte* tok)
{
string* fields = nil;
vlong start = 0;
vlong sL = string·len(s);
vlong tokL = str·len(tok);
if(sL == 0 || tokL == 0)
return nil;
mem·buffit(fields, 5);
for(vlong i = 0; i < sL - tokL; i++){
if((tokL == 1 && s[i] == tokL) || !memcmp(s + i, tok, tokL)){
mem·bufpush(fields, string·makelen(s + start, i - start));
if(fields[mem·buflen(fields) - 1] == nil) goto cleanup;
start = i + tokL;
i += tokL - 1;
}
}
mem·bufpush(fields, string·makelen(s + start, sL - start));
return fields;
cleanup:
for(vlong i = 0; i < mem·buflen(fields); i++)
string·free(fields[i]);
mem·buffree(fields);
return nil;
}
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