anon/libhl
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Improved CLI

Browse Source
This commit is contained in:
Emil
2023-08-16 00:08:15 -06:00
parent 8a859ef028
commit 99327046d4
3 changed files with 265 additions and 181 deletions
Download Patch File Download Diff File Expand all files Collapse all files

151
src/main.c
View File

@ -7,6 +7,10 @@
#define ALLOCATION_CHUNK (1024UL)
#define ALLOCATION_LIMIT (1024UL * 1024UL)
#ifndef PROGN
# define PROGN "hl"
#endif
enum { NORMAL, BOLD, DARKNESS, ITALIC, UNDERLINE, BLINK, DUNNO_6, REVERSE, INVISIBLE };
enum { GREY, RED, GREEN, YELLOW, BLUE, PINK, CYAN, WHITE, CANCEL };
@ -30,8 +34,6 @@ static int effect_keyword = BOLD;
static int effect_preprocessor = BOLD;
static int effect_default = BOLD;
static char * buffer = NULL;
static unsigned long int buffer_size = 0;
static void render_character (
@ -65,9 +67,11 @@ static void render_colour (
static int is_space (
char character
) {
if ((character == ' ') || (character == '\t') || (character == '\r') || (character == '\n')) {
switch (character)
{
case ' ': case '\t': case '\r': case '\n':
return (1);
} else {
default:
return (0);
}
}
@ -75,15 +79,17 @@ static int is_space (
static int is_separator (
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 == '=')) {
switch (character)
{
case ' ': case '\t': case '\r': case '\n':
case '+': case '-': case '*': case '/':
case '(': case ')': case '[': case ']':
case '{': case '}': case '<': case '>':
case ';': case ':': case ',': case '.':
case '!': case '&': case '|': case '?':
case '~': case '^': case '%': case '=':
return (1);
} else {
default:
return (0);
}
}
@ -106,6 +112,7 @@ static int compare_multiple_strings (
}
static int render_short_comment (
char * buffer,
int data_offset
) {
render_colour (colour_short_comment, effect_short_comment);
@ -122,6 +129,7 @@ static int render_short_comment (
}
static int render_long_comment (
char * buffer,
int data_offset
) {
render_colour (colour_long_comment, effect_long_comment);
@ -140,6 +148,7 @@ static int render_long_comment (
}
static int render_short_string (
char * buffer,
int data_offset
) {
render_colour (colour_short_string, effect_short_string);
@ -160,6 +169,7 @@ static int render_short_string (
}
static int render_long_string (
char * buffer,
int data_offset
) {
render_colour (colour_long_string, effect_long_string);
@ -180,6 +190,7 @@ static int render_long_string (
}
static int render_separator (
char * buffer,
int data_offset
) {
if (is_space (buffer [data_offset]) != 0) {
@ -195,6 +206,7 @@ static int render_separator (
}
static int render_number (
char * buffer,
int data_offset
) {
render_colour (colour_number, effect_number);
@ -208,6 +220,7 @@ static int render_number (
}
static int render_word (
char * buffer,
int data_offset
) {
const char * c_keywords [32] = {
@ -252,6 +265,61 @@ static int render_word (
return (data_offset);
}
void
handle_buffer(
char * buffer
) {
int offset = 0;
while (buffer [offset] != '\0') {
if ((buffer [offset] == '/') && (buffer [offset + 1] == '/')) {
offset = render_short_comment (buffer, offset);
} else if ((buffer [offset] == '/') && (buffer [offset + 1] == '*')) {
offset = render_long_comment (buffer, offset);
} else if (buffer [offset] == '\'') {
offset = render_short_string (buffer, offset);
} else if (buffer [offset] == '"') {
offset = render_long_string (buffer, offset);
} else if (is_separator (buffer [offset]) != 0) {
offset = render_separator (buffer, offset);
} else if ((buffer [offset] >= '0') && (buffer [offset] <= '9')) {
offset = render_number (buffer, offset);
} else {
offset = render_word (buffer, offset);
}
render_colour (CANCEL, NORMAL);
}
}
static char *
slurp(const char * fn)
{
size_t len;
char * b;
FILE * fp = fopen(fn, "r");
if (fp)
{
fseek(fp, 0, SEEK_END);
len = ftell(fp);
rewind(fp);
b = malloc(len);
if (b &&
len != fread(b, 1, len, fp))
{ perror(PROGN); }
fclose(fp);
return b;
}
else
{ return NULL; }
}
#define OPT(c,s) \
if ((c == argv[0][0] && argv[0][1] == '\0') || \
0 == strncmp(argv[0], s, strlen(s)))
#define SOPT(s) \
if (0 == strncmp(argv[0], s, strlen(s)))
/*
Valgrind: Depends on uninitialized value (buffer [0])...?
280 : } while ((buffer [buffer_size - 1] != '\0') || (buffer_size != ALLOCATION_LIMIT));
@ -261,48 +329,59 @@ int main (
int argc,
char ** argv
) {
int offset = 0;
char * buffer = NULL;
if (argc != 1) {
(void) argv;
puts ("ARGUMENTS \"Heyo world!\"");
return (-1);
while (++argv, --argc) {
if (argv[0][0] == '-') {
argv[0]++;
OPT ('?',"help") {
fprintf (stderr, PROGN ": ... | hl [OPTIONS] FILES ...\n");
return (0);
}
SOPT ("version") {
fprintf(stderr, PROGN ": Version 9000\n");
return (0);
}
else {
fprintf (stderr, PROGN ": Unrecognized option '%s'\n", argv [0]);
return (1);
}
} else {
if ((buffer = slurp (argv [0]))) {
handle_buffer (buffer);
free (buffer);
}
}
}
}
buffer = realloc (buffer, ALLOCATION_CHUNK);
#define MEMFAIL(v) if (v == NULL) { perror(PROGN); return (1); }
MEMFAIL(buffer);
do {
if ((buffer_size + 1) % ALLOCATION_CHUNK == 0) {
buffer = realloc (buffer, ((buffer_size + 1) / ALLOCATION_CHUNK + 1) * ALLOCATION_CHUNK);
buffer = realloc (buffer,
((buffer_size + 1)
/ ALLOCATION_CHUNK + 1)
* ALLOCATION_CHUNK);
MEMFAIL(buffer);
}
buffer [buffer_size] = '\0'; /* Fixing Valgrind warnings... */
read (STDIN_FILENO, & buffer [buffer_size], sizeof (* buffer));
++buffer_size;
} while ((buffer [buffer_size - 1] != '\0') /*|| (buffer_size != ALLOCATION_LIMIT)*/);
} while ((buffer [buffer_size - 1] != '\0') /*||
(buffer_size != ALLOCATION_LIMIT)*/);
buffer [buffer_size - 1] = '\0';
/* Checking if long comments work... */
// Checking if short 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);
}
handle_buffer(buffer);
free (buffer);

4
tests/extra.c Normal file
View File

@ -0,0 +1,4 @@
int
main(void)
{nothing.}

1
tests/main.c
View File

@ -319,3 +319,4 @@ signed main(){
return 0;
}