readme-thing/node.c

#include <stdio.h>
#include <string.h>

#include "node.h"

#define STRING_BUFF_SIZE 1024

static char stringBuff[STRING_BUFF_SIZE];

Node* parseHeader(TokenList** list);

NodeList*
ParseNodes(TokenList* list)
{
    NodeList* nl = malloc(sizeof(NodeList));
    NodeList* currentNode = nl;

    currentNode->next = NULL;
    currentNode->node = NULL;

    TokenList* current = list;

    //while(current != NULL) {
    while (1) {
        switch (current->token->type) {
            case TT_NEWLINE:
                break;
            case TT_HASH:
                // start of header
                //Node* nodes;
                //nodes = parseHeader(current);
                currentNode->node = parseHeader(&current);
                break;
            default:
                break;
        }

        if (current->next == NULL) {
            //printf("next is null\n");
            break;
        }
        //printf("current = current->next;\n");
        current = current->next;
    }

    return nl;
}

Node*
parseHeader(TokenList** list)
{
    TokenList* l = *list;
    // Count the number of TT_HASH tokens
    int count = 1;
    while (l->next != NULL && l->next->token->type == TT_HASH)
    {
        count++;
        l = l->next;
    }

    if (l->next == NULL)
    {
        printf("Header missing text");
        return NULL;
    }
    l = l->next;

    // Trim leading whitespace
    while (l->next != NULL && l->token->type == TT_WHITESPACE)
    {
        l = l->next;
    }

    if (l->next == NULL)
    {
        printf("Header missing text");
        return NULL;
    }

    stringBuff[0] = '\0';
    while (1)
    {
        int bufSize = strlen(stringBuff);
        int litSize = strlen(l->token->literal);
        if (bufSize + litSize + 1 > STRING_BUFF_SIZE)
        {
            printf("Buffer not big enough!");
            return NULL;
        }
        strncat(stringBuff, l->token->literal, strlen(l->token->literal));

        if (l->next == NULL || l->next->token->type == TT_NEWLINE)
        {
            break;
        }

        l = l->next;
    }

    *list = l;
    printf("header hash count: %d\ntext: '%s'\n", count, stringBuff);
    return NULL;
}