Extendable buffer...

This commit is contained in:
Ognjen Milan Robovic 2023-08-15 16:32:00 -04:00
parent 3842fbcfd3
commit a0ce6d4fef

View File

@ -3,12 +3,10 @@
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#define BB (7817)
enum { NORMAL, BOLD, DARKNESS, ITALIC, UNDERLINE, BLINK, DUNNO_6, REVERSE, INVISIBLE };
enum { GREY, RED, GREEN, YELLOW, BLUE, PINK, CYAN, WHITE, CANCEL };
static int colour_short_comment = GREY;
static int colour_long_comment = GREY;
static int colour_short_string = PINK;
@ -18,7 +16,7 @@ static int colour_number = CYAN;
static int colour_keyword = YELLOW;
static int colour_preprocessor = YELLOW;
static int colour_default = WHITE;
static int effect_short_comment = BOLD;
static int effect_long_comment = BOLD;
static int effect_short_string = BOLD;
@ -28,267 +26,273 @@ static int effect_number = BOLD;
static int effect_keyword = BOLD;
static int effect_preprocessor = BOLD;
static int effect_default = BOLD;
static char buffer [BB] = "";
static char * buffer = NULL;
static unsigned long int buffer_size = 0;
static void render_character (
char character
char character
) {
putchar (character);
putchar (character);
}
static void render_string (
char * string
char * string
) {
while (* string) render_character (* string++);
while (* string) render_character (* string++);
}
static void render_colour (
int colour,
int effect
int colour,
int effect
) {
if (colour == CANCEL) {
render_string ("\033[0m");
return;
}
render_string ("\033[");
render_character ((char) (effect % 9) + '0');
render_string (";3");
render_character ((char) (colour % 8) + '0');
render_character ('m');
if (colour == CANCEL) {
render_string ("\033[0m");
return;
}
render_string ("\033[");
render_character ((char) (effect % 9) + '0');
render_string (";3");
render_character ((char) (colour % 8) + '0');
render_character ('m');
}
static int is_space (
char character
char character
) {
if ((character == ' ') || (character == '\t') || (character == '\r') || (character == '\n')) {
return (1);
} else {
return (0);
}
if ((character == ' ') || (character == '\t') || (character == '\r') || (character == '\n')) {
return (1);
} else {
return (0);
}
}
static int is_separator (
char character
char character
) {
if ((character == ' ') || (character == '\t') || (character == '\r') || (character == '\n') ||
(character == '+') || (character == '-') || (character == '*') || (character == '/') ||
(character == '(') || (character == ')') || (character == '[') || (character == ']') ||
(character == '{') || (character == '}') || (character == '<') || (character == '>') ||
(character == ';') || (character == ':') || (character == ',') || (character == '.') ||
(character == '!') || (character == '&') || (character == '|') || (character == '?') ||
(character == '~') || (character == '^') || (character == '%') || (character == '=')) {
return (1);
} else {
return (0);
}
if ((character == ' ') || (character == '\t') || (character == '\r') || (character == '\n') ||
(character == '+') || (character == '-') || (character == '*') || (character == '/') ||
(character == '(') || (character == ')') || (character == '[') || (character == ']') ||
(character == '{') || (character == '}') || (character == '<') || (character == '>') ||
(character == ';') || (character == ':') || (character == ',') || (character == '.') ||
(character == '!') || (character == '&') || (character == '|') || (character == '?') ||
(character == '~') || (character == '^') || (character == '%') || (character == '=')) {
return (1);
} else {
return (0);
}
}
static int compare_multiple_strings (
char * string,
const char * * strings,
const int count
char * string,
const char * * strings,
const int count
) {
int i = 0;
do {
if (strcmp (string, strings [i]) == 0) {
return (1);
}
++i;
} while (i != count);
return (0);
int i = 0;
do {
if (strcmp (string, strings [i]) == 0) {
return (1);
}
++i;
} while (i != count);
return (0);
}
static int render_short_comment (
int data_offset
int data_offset
) {
render_colour (colour_short_comment, effect_short_comment);
do {
render_character (buffer [data_offset]);
++data_offset;
} while ((buffer [data_offset] != '\n') && (buffer [data_offset] != '\0'));
render_character (buffer [data_offset]);
++data_offset;
return (data_offset);
render_colour (colour_short_comment, effect_short_comment);
do {
render_character (buffer [data_offset]);
++data_offset;
} while ((buffer [data_offset] != '\n') && (buffer [data_offset] != '\0'));
render_character (buffer [data_offset]);
++data_offset;
return (data_offset);
}
static int render_long_comment (
int data_offset
int data_offset
) {
render_colour (colour_long_comment, effect_long_comment);
do {
render_character (buffer [data_offset]);
++data_offset;
} while (((buffer [data_offset] != '/') ||
(buffer [data_offset - 1] != '*')) &&
(buffer [data_offset] != '\0'));
render_character (buffer [data_offset]);
++data_offset;
return (data_offset);
render_colour (colour_long_comment, effect_long_comment);
do {
render_character (buffer [data_offset]);
++data_offset;
} while (((buffer [data_offset] != '/') ||
(buffer [data_offset - 1] != '*')) &&
(buffer [data_offset] != '\0'));
render_character (buffer [data_offset]);
++data_offset;
return (data_offset);
}
static int render_short_string (
int data_offset
int data_offset
) {
render_colour (colour_short_string, effect_short_string);
do {
render_character (buffer [data_offset]);
++data_offset;
if (buffer [data_offset - 1] == '\\') {
render_character (buffer [data_offset]);
++data_offset;
}
} while ((buffer [data_offset] != '\'') && (buffer [data_offset] != '\0'));
render_character (buffer [data_offset]);
++data_offset;
return (data_offset);
render_colour (colour_short_string, effect_short_string);
do {
render_character (buffer [data_offset]);
++data_offset;
if (buffer [data_offset - 1] == '\\') {
render_character (buffer [data_offset]);
++data_offset;
}
} while ((buffer [data_offset] != '\'') && (buffer [data_offset] != '\0'));
render_character (buffer [data_offset]);
++data_offset;
return (data_offset);
}
static int render_long_string (
int data_offset
int data_offset
) {
render_colour (colour_long_string, effect_long_string);
do {
render_character (buffer [data_offset]);
++data_offset;
if (buffer [data_offset - 1] == '\\') {
render_character (buffer [data_offset]);
++data_offset;
}
} while ((buffer [data_offset] != '"') && (buffer [data_offset] != '\0'));
render_character (buffer [data_offset]);
++data_offset;
return (data_offset);
render_colour (colour_long_string, effect_long_string);
do {
render_character (buffer [data_offset]);
++data_offset;
if (buffer [data_offset - 1] == '\\') {
render_character (buffer [data_offset]);
++data_offset;
}
} while ((buffer [data_offset] != '"') && (buffer [data_offset] != '\0'));
render_character (buffer [data_offset]);
++data_offset;
return (data_offset);
}
static int render_separator (
int data_offset
int data_offset
) {
if (is_space (buffer [data_offset]) != 0) {
render_colour (WHITE, NORMAL);
} else {
render_colour (colour_separator, effect_separator);
}
render_character (buffer [data_offset]);
++data_offset;
return (data_offset);
if (is_space (buffer [data_offset]) != 0) {
render_colour (WHITE, NORMAL);
} else {
render_colour (colour_separator, effect_separator);
}
render_character (buffer [data_offset]);
++data_offset;
return (data_offset);
}
static int render_number (
int data_offset
int data_offset
) {
render_colour (colour_number, effect_number);
do {
render_character (buffer [data_offset]);
++data_offset;
} while ((is_separator (buffer [data_offset]) == 0) && (buffer [data_offset] != '\0'));
return (data_offset);
render_colour (colour_number, effect_number);
do {
render_character (buffer [data_offset]);
++data_offset;
} while ((is_separator (buffer [data_offset]) == 0) && (buffer [data_offset] != '\0'));
return (data_offset);
}
static int render_word (
int data_offset
int data_offset
) {
const char * c_keywords [32] = {
"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"
};
const char * preprocessor_keywords [16] = {
"#include", "#pragma", "#define", "#undef", "#ifdef", "#ifndef", "#elifdef", "#elifndef",
"#if", "#elif", "#else", "#endif", "#embed", "#line", "#error", "#warning"
};
char * word = NULL;
int i = 0;
do {
word = realloc (word, sizeof (* word) * (unsigned long int) (i + 1));
word [i] = buffer [data_offset + i];
++i;
} while ((is_separator (buffer [data_offset + i]) == 0) && (buffer [data_offset + i] != '\0'));
word = realloc (word, sizeof (* word) * (unsigned long int) (i + 1));
word [i] = '\0';
if (compare_multiple_strings (word, c_keywords, 32) != 0) {
render_colour (colour_keyword, effect_keyword);
} else if (compare_multiple_strings (word, preprocessor_keywords, 16) != 0) {
render_colour (colour_preprocessor, effect_preprocessor);
} else {
render_colour (colour_default, effect_default);
}
do {
render_character (buffer [data_offset]);
++data_offset;
} while ((is_separator (buffer [data_offset]) == 0) && (buffer [data_offset] != '\0'));
return (data_offset);
const char * c_keywords [32] = {
"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"
};
const char * preprocessor_keywords [16] = {
"#include", "#pragma", "#define", "#undef", "#ifdef", "#ifndef", "#elifdef", "#elifndef",
"#if", "#elif", "#else", "#endif", "#embed", "#line", "#error", "#warning"
};
char * word = NULL;
int i = 0;
do {
word = realloc (word, sizeof (* word) * (unsigned long int) (i + 1));
word [i] = buffer [data_offset + i];
++i;
} while ((is_separator (buffer [data_offset + i]) == 0) && (buffer [data_offset + i] != '\0'));
word = realloc (word, sizeof (* word) * (unsigned long int) (i + 1));
word [i] = '\0';
if (compare_multiple_strings (word, c_keywords, 32) != 0) {
render_colour (colour_keyword, effect_keyword);
} else if (compare_multiple_strings (word, preprocessor_keywords, 16) != 0) {
render_colour (colour_preprocessor, effect_preprocessor);
} else {
render_colour (colour_default, effect_default);
}
do {
render_character (buffer [data_offset]);
++data_offset;
} while ((is_separator (buffer [data_offset]) == 0) && (buffer [data_offset] != '\0'));
return (data_offset);
}
int main (
int argc,
char * * argv
int argc,
char * * argv
) {
int offset = 0;
int i = 0;
if (argc != 1) {
(void) argv;
puts ("ARGUMENTS \"Heyo world!\"");
return (-1);
}
printf ("");
do {
buffer [i] = (char) fgetc(stdin);
++i;
} while ((buffer [i] != '\0') || (i != BB));
/* Checking if long comments work... */
// Checking if long comments work...
while (buffer [offset] != '\0') {
if ((buffer [offset] == '/') && (buffer [offset + 1] == '/')) {
offset = render_short_comment (offset);
} else if ((buffer [offset] == '/') && (buffer [offset + 1] == '*')) {
offset = render_long_comment (offset);
} else if (buffer [offset] == '\'') {
offset = render_short_string (offset);
} else if (buffer [offset] == '"') {
offset = render_long_string (offset);
} else if (is_separator (buffer [offset]) != 0) {
offset = render_separator (offset);
} else if ((buffer [offset] >= '0') && (buffer [offset] <= '9')) {
offset = render_number (offset);
} else {
offset = render_word (offset);
}
render_colour (CANCEL, NORMAL);
}
return (0);
int offset = 0;
if (argc != 1) {
(void) argv;
puts ("ARGUMENTS \"Heyo world!\"");
return (-1);
}
do {
++buffer_size;
buffer = realloc (buffer, buffer_size);
read (STDIN_FILENO, & buffer [buffer_size - 1], sizeof (* buffer));
} while ((buffer [buffer_size] != '\0') || (buffer_size != 10000));
++buffer_size;
buffer = realloc (buffer, buffer_size);
buffer [buffer_size] = '\0';
/* Checking if long comments work... */
// Checking if long comments work...
while (buffer [offset] != '\0') {
if ((buffer [offset] == '/') && (buffer [offset + 1] == '/')) {
offset = render_short_comment (offset);
} else if ((buffer [offset] == '/') && (buffer [offset + 1] == '*')) {
offset = render_long_comment (offset);
} else if (buffer [offset] == '\'') {
offset = render_short_string (offset);
} else if (buffer [offset] == '"') {
offset = render_long_string (offset);
} else if (is_separator (buffer [offset]) != 0) {
offset = render_separator (offset);
} else if ((buffer [offset] >= '0') && (buffer [offset] <= '9')) {
offset = render_number (offset);
} else {
offset = render_word (offset);
}
render_colour (CANCEL, NORMAL);
}
free (buffer);
return (0);
}