libhl/source/terminal_hl.h

#include "hl.h"

typedef struct {
	char * attribute;
	char * foreground_color;
	char * background_color;
} terminal_hl_t;

void cterm_render_callback(const char * const string,
                           const int          length,
                           void       * const attributes) {
	if(!length){
		fputs(TERMINAL_STYLE_BOLD, stdout);
		putchar(*string);
		fputs(TERMINAL_RESET, stdout);
		return;
	}

	terminal_hl_t * term_hl = (terminal_hl_t*)attributes;
	fputs(term_hl->attribute, stdout);
	fputs(term_hl->foreground_color, stdout);
	for (int i = 0; i < length; i++) {
		putchar(*(string+i));
	}
	fputs(TERMINAL_RESET, stdout);
}

display_t * cterm = &(display_t) {
	.key = "cterm",
	.callback = cterm_render_callback
};


int terminal_hl_init(void){
	hl_init();
	new_display_mode(cterm);
	//
	terminal_hl_t terminal_keyword_hl = (terminal_hl_t) {
		.attribute = TERMINAL_STYLE_BOLD,
		.foreground_color = TERMINAL_COLOR_FG_GREEN,
		.background_color = NULL
	};
	keyword_hl = &(hl_group_t) {
		.link = NULL,
		.attributes = (void*)&terminal_keyword_hl
	};
	//
	terminal_hl_t terminal_preprocessor_hl = (terminal_hl_t) {
		.attribute = TERMINAL_STYLE_BOLD,
		.foreground_color = TERMINAL_COLOR_FG_BLUE,
		.background_color = NULL
	};
	preprocessor_hl = &(hl_group_t) {
		.link = NULL,
		.attributes = (void*)&terminal_preprocessor_hl
	};
	//
	terminal_hl_t terminal_symbol_hl = (terminal_hl_t) {
		.attribute = TERMINAL_STYLE_BOLD,
		.foreground_color = TERMINAL_COLOR_FG_YELLOW,
		.background_color = NULL
	};
	symbol_hl = &(hl_group_t) {
		.link = NULL,
		.attributes = (void*)&terminal_symbol_hl
	};

	return 0;
}