#include "parse.h"
#include <stddef.h>

// Using this as a reference:
// https://en.cppreference.com/c/language/translation_phases

typedef struct {
    int line;
    int col;
} Loc;

// Phase 1 already happens when the file is read.

typedef struct {
    Loc loc;
    char ch;
} CannonicalChar;

typedef struct {
    const char* text;
    size_t idx;
    Loc loc;
} NewlineCanonicalizer;

CannonicalChar next_cannonical_char(NewlineCanonicalizer* iter)
{
    Loc loc = iter->loc;
    char ch = iter->text[iter->idx];
    if (ch == '\0')
        return (CannonicalChar) { loc, ch };
    do {
        if (ch == '\n') {

        } else {
        }
        iter->loc.col += 1;

    } while (iter->text[iter->idx]);
}

// Phase 2 is an iterator that handles escaped newlines.

typedef struct {
    /// when this is '\0', it means EOF
    char ch;
    int line;
    int col;
} Char;

typedef struct {
    const char* text;
    size_t idx;
    int line;
    int col;
} CharIter;

static Char next_src_char(CharIter* iter)
{
    if (!iter->text[iter->idx])
        return (Char) { .ch = '\0', iter->line, iter->col };
    char ch = iter->text[iter->idx];
    iter->idx += 1;
    while (ch == '\\' &&)
}