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/*
See license.txt in the root of this project.
*/
# ifndef LMT_MAINCONTROL_H
# define LMT_MAINCONTROL_H
/*tex
To handle the execution state of |main_control|'s eternal loop, an extra global variable is
used, along with a macro to define its values.
*/
typedef enum control_states {
goto_next_state,
goto_skip_token_state,
goto_return_state,
} control_states;
typedef struct main_control_state_info {
control_states control_state;
int local_level;
halfword after_token;
halfword after_tokens;
halfword last_par_context;
halfword loop_iterator;
halfword loop_nesting;
halfword quit_loop;
} main_control_state_info;
typedef enum saved_discretionary_items {
saved_discretionary_item_component = 0,
saved_discretionary_n_of_items = 1,
} saved_discretionary_items;
extern main_control_state_info lmt_main_control_state;
extern void tex_initialize_variables (void);
extern int tex_main_control (void);
extern void tex_normal_paragraph (int context);
extern void tex_begin_paragraph (int doindent, int context);
extern void tex_end_paragraph (int group, int context);
extern int tex_wrapped_up_paragraph (int context);
extern void tex_insert_paragraph_token (void);
extern int tex_in_privileged_mode (void);
extern void tex_you_cant_error (const char *helpinfo);
extern void tex_off_save (void);
extern halfword tex_local_scan_box (void);
extern void tex_box_end (int boxcontext, halfword boxnode, scaled shift, halfword mainclass);
extern void tex_get_r_token (void);
extern void tex_begin_local_control (void);
extern void tex_end_local_control (void);
extern void tex_local_control (int obeymode);
extern void tex_local_control_message (const char *s);
extern void tex_page_boundary_message (const char *s, halfword boundary);
extern void tex_inject_text_or_line_dir (int d, int check_glue);
extern void tex_run_prefixed_command (void);
extern void tex_handle_assignments (void); /*tex Used in math. */
extern void tex_assign_internal_int_value (int a, halfword p, int val);
extern void tex_assign_internal_attribute_value (int a, halfword p, int val);
extern void tex_assign_internal_dimen_value (int a, halfword p, int val);
extern void tex_assign_internal_skip_value (int a, halfword p, int val);
# endif
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