Parsee/src/StrSplit.c

#include <StringSplit.h>

#include <Cytoplasm/Memory.h>
#include <stdbool.h>
#include <string.h>
#include <stdlib.h>

char **
StrSplitLines(char *text)
{
    char **ret = NULL;
    size_t lines = 0;

    char *next = text, *ptr = text;
    bool done = false;
    if (!text)
    {
        return NULL;
    }

    while (!done)
    {
        size_t bytes;
        char *line;

        next = strchr(ptr, '\n');
        if (!next)
        {
            next = text + strlen(text);
            done = true;
        }

        /* Take the chunk from ptr to [text] */
        bytes = next - ptr;
        line = Malloc(bytes + 1);
        memcpy(line, ptr, bytes);
        line[bytes] = '\0';

        ret = Realloc(ret, sizeof(char *) * ++lines);
        ret[lines - 1] = line;

        ptr = *next ? next + 1 : next;
    }

    ret = Realloc(ret, sizeof(char *) * ++lines);
    ret[lines - 1] = NULL;
    return ret;
}
void
StrFreeLines(char **split)
{
    char *line, **orig;
    if (!split)
    {
        return;
    }

    orig = split;
    while ((line = *split++))
    {
        Free(line);
    }

    Free(orig);
}