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#pragma once
#include <assert.h>
#include <stdbool.h>
#include <stddef.h>
#include "klib/kvec.h"
#include "nvim/mbyte_defs.h"
#include "nvim/viml/parser/parser_defs.h" // IWYU pragma: keep
#ifdef INCLUDE_GENERATED_DECLARATIONS
# include "viml/parser/parser.h.generated.h"
# include "viml/parser/parser.h.inline.generated.h"
#endif
/// Initialize a new parser state instance
///
/// @param[out] ret_pstate Parser state to initialize.
/// @param[in] get_line Line getter function.
/// @param[in] cookie Argument for the get_line function.
/// @param[in] colors Where to save highlighting. May be NULL if it is not
/// needed.
static inline void viml_parser_init(ParserState *const ret_pstate, const ParserLineGetter get_line,
void *const cookie, ParserHighlight *const colors)
FUNC_ATTR_ALWAYS_INLINE FUNC_ATTR_NONNULL_ARG(1, 2)
{
*ret_pstate = (ParserState) {
.reader = {
.get_line = get_line,
.cookie = cookie,
.conv = MBYTE_NONE_CONV,
},
.pos = { 0, 0 },
.colors = colors,
.can_continuate = false,
};
kvi_init(ret_pstate->reader.lines);
kvi_init(ret_pstate->stack);
}
/// Advance position by a given number of bytes
///
/// At maximum advances to the next line.
///
/// @param pstate Parser state to advance.
/// @param[in] len Number of bytes to advance.
static inline void viml_parser_advance(ParserState *const pstate, const size_t len)
FUNC_ATTR_ALWAYS_INLINE FUNC_ATTR_NONNULL_ALL
{
assert(pstate->pos.line == kv_size(pstate->reader.lines) - 1);
const ParserLine pline = kv_last(pstate->reader.lines);
if (pstate->pos.col + len >= pline.size) {
pstate->pos.line++;
pstate->pos.col = 0;
} else {
pstate->pos.col += len;
}
}
/// Record highlighting of some region of text
///
/// @param pstate Parser state to work with.
/// @param[in] start Start position of the highlight.
/// @param[in] len Highlighting chunk length.
/// @param[in] group Highlight group.
static inline void viml_parser_highlight(ParserState *const pstate, const ParserPosition start,
const size_t len, const char *const group)
FUNC_ATTR_ALWAYS_INLINE FUNC_ATTR_NONNULL_ALL
{
if (pstate->colors == NULL || len == 0) {
return;
}
assert(kv_size(*pstate->colors) == 0
|| kv_Z(*pstate->colors, 0).start.line < start.line
|| kv_Z(*pstate->colors, 0).end_col <= start.col);
kvi_push(*pstate->colors, ((ParserHighlightChunk) {
.start = start,
.end_col = start.col + len,
.group = group,
}));
}
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