apfl/src/format.h

#ifndef APFL_FORMAT_H
#define APFL_FORMAT_H

#ifdef __cplusplus
extern "C" {
#endif

#include <stdbool.h>
#include <stddef.h>
#include <stdio.h>

#include "apfl.h"

struct apfl_format_writer {
    bool (*write)(void *, const char *buf, size_t len);
    void *opaque;
};

struct apfl_format_writer apfl_format_file_writer(FILE *f);

struct apfl_format_writer apfl_format_string_writer(struct apfl_string_builder *sb);

bool apfl_format_put_string_view(struct apfl_format_writer, struct apfl_string_view);
#define apfl_format_put_string(w, s) apfl_format_put_string_view((w), apfl_string_view_from(s))
bool apfl_format_put_int(struct apfl_format_writer, int);
bool apfl_format_put_char(struct apfl_format_writer, char);
bool apfl_format_put_hexbyte(struct apfl_format_writer, unsigned char);
bool apfl_format_put_pos(struct apfl_format_writer, struct apfl_position);
bool apfl_format_put_indent(struct apfl_format_writer, unsigned);
bool apfl_format_put_number(struct apfl_format_writer, apfl_number);

#ifdef __cplusplus
}
#endif

#endif
Add formatter abstraction for errors This will allow us to format errors as strings later by implementing a different format writer. 2022-04-21 20:01:59 +00:00			`#ifndef APFL_FORMAT_H`
			`#define APFL_FORMAT_H`

			`#ifdef __cplusplus`
			`extern "C" {`
			`#endif`

			`#include <stdbool.h>`
			`#include <stddef.h>`
			`#include <stdio.h>`

			`#include "apfl.h"`

			`struct apfl_format_writer {`
			`bool (write)(void , const char *buf, size_t len);`
			`void *opaque;`
			`};`

			`struct apfl_format_writer apfl_format_file_writer(FILE *f);`

Push formatted parser error on stack during evaluation This way we can see the parse errors again in evaluation mode Not fully fleshed out yet: We simply use apfl_debug_print_val to dump the top of the stack (the formatted error) to stderr but don't nicely handle if there is nothing on the stack (apfl_debug_print_val will print a rather cryptic "stack index invalid" error). Also the whole dance we need to do to put the formatted error onto the stack feels rather awkward (there should probably a function for this) and we also should probably try to push an error description on the stack in case this moving-string-to-stack business fails. Now "only" all other errors need to be put on the stack as a string :) 2022-04-21 20:40:27 +00:00			`struct apfl_format_writer apfl_format_string_writer(struct apfl_string_builder *sb);`

Add formatter abstraction for errors This will allow us to format errors as strings later by implementing a different format writer. 2022-04-21 20:01:59 +00:00			`bool apfl_format_put_string_view(struct apfl_format_writer, struct apfl_string_view);`
			`#define apfl_format_put_string(w, s) apfl_format_put_string_view((w), apfl_string_view_from(s))`
			`bool apfl_format_put_int(struct apfl_format_writer, int);`
			`bool apfl_format_put_char(struct apfl_format_writer, char);`
			`bool apfl_format_put_hexbyte(struct apfl_format_writer, unsigned char);`
Use formatter for expr printing 2022-04-22 20:52:53 +00:00			`bool apfl_format_put_pos(struct apfl_format_writer, struct apfl_position);`
			`bool apfl_format_put_indent(struct apfl_format_writer, unsigned);`
			`bool apfl_format_put_number(struct apfl_format_writer, apfl_number);`
Add formatter abstraction for errors This will allow us to format errors as strings later by implementing a different format writer. 2022-04-21 20:01:59 +00:00
			`#ifdef __cplusplus`
			`}`
			`#endif`

			`#endif`