Ydb stable 23-1-2623.1.26

x-stable-origin-commit: 22184a7e157553d447f17a2dffc4ea2d32dfd74d

1 files changed, 151 insertions, 0 deletions

diff --git a/contrib/libs/libfyaml/src/lib/fy-emit.h b/contrib/libs/libfyaml/src/lib/fy-emit.h
new file mode 100644
index 0000000000..3bbd8b5f1c
--- /dev/null
+++ b/contrib/libs/libfyaml/src/lib/fy-emit.h
@@ -0,0 +1,151 @@
+/*
+ * fy-emit.h - internal YAML emitter header
+ *
+ * Copyright (c) 2019 Pantelis Antoniou <pantelis.antoniou@konsulko.com>
+ *
+ * SPDX-License-Identifier: MIT
+ */
+#ifndef FY_EMIT_H
+#define FY_EMIT_H
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <stdio.h>
+
+#include <libfyaml.h>
+
+#include "fy-utf8.h"
+#include "fy-event.h"
+#include "fy-emit-accum.h"
+
+#define FYEF_WHITESPACE			0x0001
+#define FYEF_INDENTATION		0x0002
+#define FYEF_OPEN_ENDED			0x0004
+#define FYEF_HAD_DOCUMENT_START		0x0008
+#define FYEF_HAD_DOCUMENT_END		0x0010
+#define FYEF_HAD_DOCUMENT_OUTPUT	0x0020
+
+struct fy_document;
+struct fy_emitter;
+struct fy_document_state;
+
+enum fy_emitter_state {
+	FYES_NONE,		/* when not using the raw emitter interface */
+	FYES_STREAM_START,
+	FYES_FIRST_DOCUMENT_START,
+	FYES_DOCUMENT_START,
+	FYES_DOCUMENT_CONTENT,
+	FYES_DOCUMENT_END,
+	FYES_SEQUENCE_FIRST_ITEM,
+	FYES_SEQUENCE_ITEM,
+	FYES_MAPPING_FIRST_KEY,
+	FYES_MAPPING_KEY,
+	FYES_MAPPING_SIMPLE_VALUE,
+	FYES_MAPPING_VALUE,
+	FYES_END,
+};
+
+struct fy_emit_save_ctx {
+	bool flow_token : 1;
+	bool flow : 1;
+	bool empty : 1;
+	int old_indent;
+	int flags;
+	int indent;
+	struct fy_token *fyt_last_key;
+	struct fy_token *fyt_last_value;
+	int s_flags;
+	int s_indent;
+};
+
+/* internal flags */
+#define DDNF_ROOT		0x0001
+#define DDNF_SEQ		0x0002
+#define DDNF_MAP		0x0004
+#define DDNF_SIMPLE		0x0008
+#define DDNF_FLOW		0x0010
+#define DDNF_INDENTLESS		0x0020
+#define DDNF_SIMPLE_SCALAR_KEY	0x0040
+
+struct fy_emitter {
+	int line;
+	int column;
+	int flow_level;
+	unsigned int flags;
+	bool output_error : 1;
+	bool source_json : 1;		/* the source was json */
+	bool force_json : 1;		/* force JSON mode unconditionally */
+	bool suppress_recycling_force : 1;
+	bool suppress_recycling : 1;
+
+	/* current document */
+	struct fy_emitter_cfg cfg;	/* yeah, it isn't worth just to save a few bytes */
+	struct fy_document *fyd;
+	struct fy_document_state *fyds;	/* fyd->fyds when fyd != NULL */
+	struct fy_emit_accum ea;
+	char ea_inplace_buf[256];	/* the in place accumulator buffer before allocating */
+	struct fy_diag *diag;
+
+	/* streaming event mode */
+	enum fy_emitter_state state;
+	enum fy_emitter_state *state_stack;
+	unsigned int state_stack_alloc;
+	unsigned int state_stack_top;
+	enum fy_emitter_state state_stack_inplace[64];
+	struct fy_eventp_list queued_events;
+	int s_indent;
+	int s_flags;
+	struct fy_emit_save_ctx s_sc;
+	struct fy_emit_save_ctx *sc_stack;
+	unsigned int sc_stack_alloc;
+	unsigned int sc_stack_top;
+	struct fy_emit_save_ctx sc_stack_inplace[16];
+
+	/* recycled */
+	struct fy_eventp_list recycled_eventp;
+	struct fy_token_list recycled_token;
+
+	struct fy_eventp_list *recycled_eventp_list;	/* NULL when suppressing */
+	struct fy_token_list *recycled_token_list;	/* NULL when suppressing */
+
+	/* for special needs */
+	void (*finalizer)(struct fy_emitter *emit);
+};
+
+int fy_emit_setup(struct fy_emitter *emit, const struct fy_emitter_cfg *cfg);
+void fy_emit_cleanup(struct fy_emitter *emit);
+
+void fy_emit_write(struct fy_emitter *emit, enum fy_emitter_write_type type, const char *str, int len);
+
+static inline bool fy_emit_whitespace(struct fy_emitter *emit)
+{
+	return !!(emit->flags & FYEF_WHITESPACE);
+}
+
+static inline bool fy_emit_indentation(struct fy_emitter *emit)
+{
+	return !!(emit->flags & FYEF_INDENTATION);
+}
+
+static inline bool fy_emit_open_ended(struct fy_emitter *emit)
+{
+	return !!(emit->flags & FYEF_OPEN_ENDED);
+}
+
+static inline void
+fy_emit_output_accum(struct fy_emitter *emit, enum fy_emitter_write_type type, struct fy_emit_accum *ea)
+{
+	const char *text;
+	size_t len;
+
+	text = fy_emit_accum_get(ea, &len);
+	if (text && len > 0)
+		fy_emit_write(emit, type, text, len);
+	fy_emit_accum_reset(ea);
+}
+
+#endif