WHCandCursor
1f1fcba7ad
Vendored sashidown, OpenAI-compatible env (OPENAI_*), and bootstrap scripts. Co-authored-by: Cursor <cursoragent@cursor.com>
41 lines
1.7 KiB
C
41 lines
1.7 KiB
C
#ifndef MD_LINE_INDEX_H
|
|
#define MD_LINE_INDEX_H
|
|
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
#define SASHIDOWN_MAX_LINE_INDEX 16384
|
|
|
|
typedef struct {
|
|
uint32_t *off; /* line-start offsets; off[n] is end sentinel */
|
|
uint32_t n; /* number of line starts (off[0]..off[n-1]) */
|
|
uint32_t cur; /* sequential cursor: line index for last lookup */
|
|
uint32_t cap; /* slots in off[] (must be >= n+1 when valid) */
|
|
int valid; /* 0 if doc exceeded index capacity / OOM */
|
|
int owned; /* 1 if off was malloc'd (stream path) */
|
|
} line_index_t;
|
|
|
|
/* Stack-backed index for zero-malloc parse/convert hot path. */
|
|
#define LINE_INDEX_STACK(name) \
|
|
uint32_t name##_off_[SASHIDOWN_MAX_LINE_INDEX + 1]; \
|
|
line_index_t name = { \
|
|
.off = name##_off_, .n = 0, .cur = 0, \
|
|
.cap = SASHIDOWN_MAX_LINE_INDEX + 1, .valid = 1, .owned = 0 \
|
|
}
|
|
|
|
int line_index_init_dynamic(line_index_t *ix, uint32_t initial_cap);
|
|
void line_index_free(line_index_t *ix);
|
|
|
|
void line_index_build(const char *input, size_t len, line_index_t *ix);
|
|
|
|
/* Extend for input[old_len..new_len). Returns absolute offset after the last
|
|
* newline in that range, or 0 if none. */
|
|
size_t line_index_extend(line_index_t *ix, const char *input,
|
|
size_t old_len, size_t new_len);
|
|
|
|
void line_index_seek(line_index_t *ix, size_t pos);
|
|
size_t line_end_ix(line_index_t *ix, const char *input, size_t len, size_t pos);
|
|
size_t skip_line_ix(line_index_t *ix, const char *input, size_t len, size_t pos);
|
|
|
|
#endif /* MD_LINE_INDEX_H */
|