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frontend: add a line editor for shell input

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max 🍓
2024-11-18 09:53:55 +00:00
parent f44a3364b3
commit 4fc1a6ade8
22 changed files with 2137 additions and 0 deletions
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14
frontend/line-ed/buffer.h Normal file
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#ifndef LINE_ED_BUFFER_H_
#define LINE_ED_BUFFER_H_
struct line_ed;
/* returns a pointer to the start of the line based on the given `y`
* coordinate */
extern const char *line_start(struct line_ed *ed, unsigned int y);
/* returns the length of the line based on the given `y` coordinate.
* for any line other than the last line in the buffer, this length
* INCLUDES the trailing linefeed. */
extern unsigned int line_length(struct line_ed *ed, unsigned int y);
#endif