forked from KolibriOS/kolibrios
64 lines
1.9 KiB
C
64 lines
1.9 KiB
C
#ifndef PROMPT_H_
|
|
#define PROMPT_H_
|
|
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
#ifdef __cplusplus
|
|
#define PROMPT_DECL_BEGIN__ extern "C" {
|
|
#define PROMPT_DECL_END__ }
|
|
#else
|
|
#define PROMPT_DECL_BEGIN__
|
|
#define PROMPT_DECL_END__
|
|
#endif
|
|
|
|
#define PROMPT_HIST_SIZE 64
|
|
#define PROMPT_LINE_SIZE 512
|
|
|
|
PROMPT_DECL_BEGIN__
|
|
|
|
struct prompt {
|
|
unsigned int cursor; /* cursor position for current line */
|
|
unsigned int current; /* current history[] entry */
|
|
unsigned int entries; /* number of entries in history[] */
|
|
struct prompt_history {
|
|
unsigned int length; /* line length */
|
|
uint8_t line[PROMPT_LINE_SIZE]; /* line data */
|
|
} history[PROMPT_HIST_SIZE];
|
|
};
|
|
|
|
struct prompt_parse {
|
|
unsigned int index; /* current index in argv */
|
|
unsigned int cursor; /* cursor position for current index or ~0u */
|
|
unsigned int argc; /* number of elements in argv */
|
|
uint8_t **argv; /* NULL-terminated array of pointers to each word */
|
|
unsigned int *args; /* size of each argv[] element */
|
|
struct prompt_parse_argo {
|
|
unsigned int pos;
|
|
unsigned int len;
|
|
} *argo; /* position and length of each element in original string */
|
|
};
|
|
|
|
extern void prompt_init(struct prompt *p);
|
|
extern void prompt_push(struct prompt *p);
|
|
extern void prompt_older(struct prompt *p);
|
|
extern void prompt_newer(struct prompt *p);
|
|
extern void prompt_left(struct prompt *p);
|
|
extern void prompt_right(struct prompt *p);
|
|
extern void prompt_begin(struct prompt *p);
|
|
extern void prompt_end(struct prompt *p);
|
|
extern void prompt_clear(struct prompt *p);
|
|
extern void prompt_put(struct prompt *p, uint8_t c);
|
|
extern void prompt_delete(struct prompt *p);
|
|
extern void prompt_backspace(struct prompt *p);
|
|
extern void prompt_replace(struct prompt *p, unsigned int pos,
|
|
unsigned int len, const uint8_t *with,
|
|
unsigned int with_len);
|
|
extern struct prompt_parse *prompt_parse(struct prompt *p,
|
|
struct prompt_parse *pp);
|
|
extern void prompt_parse_clean(struct prompt_parse *pp);
|
|
|
|
PROMPT_DECL_END__
|
|
|
|
#endif /* PROMPT_H_ */
|