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