text: #ifndef _SWAYBAR_STATUS_LINE_H
  #define _SWAYBAR_STATUS_LINE_H
  #include <stdint.h>
  #include <stdio.h>
  #include <stdbool.h>
  #include "bar.h"
  
  enum status_protocol {
  	PROTOCOL_UNDEF,
  	PROTOCOL_ERROR,
  	PROTOCOL_TEXT,
  	PROTOCOL_I3BAR,
  };
  
  struct text_protocol_state {
  	char *buffer;
  	size_t buffer_size;
  };
  
  enum json_node_type {
  	JSON_NODE_UNKNOWN,
  	JSON_NODE_ARRAY,
  	JSON_NODE_STRING,
  };
  
  struct i3bar_protocol_state {
  	bool click_events;
  	char *buffer;
  	size_t buffer_size;
  	size_t buffer_index;
  	const char *current_node;
  	bool escape;
  	size_t depth;
  	enum json_node_type nodes[16];
  };
  
  struct i3bar_block {
  	struct wl_list link;
  	char *full_text, *short_text, *align;
  	bool urgent;
  	uint32_t *color;
  	int min_width;
  	char *name, *instance;
  	bool separator;
  	int separator_block_width;
  	bool markup;
  	// Airblader features
  	uint32_t background;
  	uint32_t border;
  	int border_top;
  	int border_bottom;
  	int border_left;
  	int border_right;
  };
  
  struct status_line {
  	pid_t pid;
  	int read_fd, write_fd;
  	FILE *read, *write;
  
  	enum status_protocol protocol;
  	const char *text;
  	struct wl_list blocks; // i3bar_block::link
  
  	struct text_protocol_state text_state;
  	struct i3bar_protocol_state i3bar_state;
  };
  
  struct status_line *status_line_init(char *cmd);
  void status_error(struct status_line *status, const char *text);
  bool status_handle_readable(struct status_line *status);
  void status_line_free(struct status_line *status);
  bool i3bar_handle_readable(struct status_line *status);
  void i3bar_block_send_click(struct status_line *status,
  		struct i3bar_block *block, int x, int y, uint32_t button);
  
  #endif
  