Dynamic memory allocation for Slide.content

[codythegreat]

Currently Slide.content is setup as a fixed length character array of 5000 characters. We'd prefer for this to be dynamic so that even if a slide exceeds 5000 characters we won't encounter a seg fault. We'd also like to small slides utilize less memory.

I believe that this can be accomplished by setting the Slide.content variable in parser.h as a character pointer char *content and then in parser.c we'd build the content with a character array of x*y size, then we'd simply point the Slide.content variable to the character array. We may also need to allocate the character array to heap memory instead of the stack.

[codythegreat]

I'm closing this issue as I was able to implement a much better solution that will make it much easier to add features in the future. Quick synopsis of changes below;

• separated struct logic from parser. struct logic is now in slides.c and slides.h
• added struct line which acts as a linked list where one line leads to the next and so on. This should make it much easier to add per-line formatting as they can just be variables added to the line struct
• slide struct has variable struct line *first that points to first line, then each line will point to the next till the last line
• parseTXT function properly allocates data to this new format. nextLine() is called after each line to write the buffer to a new line that'll serve as the next variable to the previous line. parseTXT will increment to the next slide variable and work from that variable's first line variable
• displayLoop now conforms to this new format as well, printing each line of the slide to be shown.
• after displayLoop returns, main will simply free each line and slide, and close.