libhl/source/main.c
2023-08-21 16:13:24 +02:00

126 lines
3.4 KiB
C

//register
//putchar()
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include "hl.h"
#define ALLOCATION_CHUNK (10UL)
static char * buffer = NULL;
static size_t buffer_size = 0;
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);
}
int main(int argc,
char * * argv) {
UNUSED(argc);
UNUSED(argv);
// Buffer init
buffer = realloc(buffer, ALLOCATION_CHUNK);
do {
if (!((buffer_size + 1) % ALLOCATION_CHUNK)) {
/* Linear incremental reallocation (advanced)!
*/
size_t chunks = (buffer_size + 1) / ALLOCATION_CHUNK;
buffer = realloc(buffer, ++chunks * ALLOCATION_CHUNK);
}
buffer[buffer_size] = '\0';
read(STDIN_FILENO, &buffer[buffer_size], sizeof (*buffer));
++buffer_size;
} while (buffer[buffer_size - 1]);
buffer[buffer_size - 1] = '\0';
// Highlight init
hl_init();
const char * c_keywords[] = {
"register", "volatile", "auto", "const", "static", "extern", "if", "else",
"do", "while", "for", "continue", "switch", "case", "default", "break",
"enum", "union", "struct", "typedef", "goto", "void", "return", "sizeof",
"char", "short", "int", "long", "signed", "unsigned", "float", "double",
NULL
};
const char * preprocessor_keywords[] = {
"#include", "#pragma", "#define", "#undef", "#ifdef", "#ifndef", "#elifdef", "#elifndef",
"#if", "#elif", "#else", "#endif", "#embed", "#line", "#error", "#warning",
NULL
};
//
display_t * cterm = &(display_t) {
.key = "cterm",
.callback = cterm_render_callback
};
//
terminal_hl_t terminal_keyword_hl = (terminal_hl_t) {
.attribute = TERMINAL_STYLE_BOLD,
.foreground_color = TERMINAL_COLOR_FG_GREEN,
.background_color = NULL
};
hl_group_t 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
};
hl_group_t 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
};
hl_group_t symbol_hl = (hl_group_t) {
.link = NULL,
.attributes = (void*)&terminal_symbol_hl
};
//
new_display_mode(cterm);
new_keyword_tokens(c_keywords, &keyword_hl);
new_keyword_tokens(preprocessor_keywords, &preprocessor_hl);
new_char_tokens("&|()[]{}*,", &symbol_hl);
//
render_string(buffer, "cterm");
putchar('\n');
hl_deinit();
free(buffer);
return 0;
}