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/*
* Indent some fucking CSS.
* Runxi Yu <https://runxiyu.org>
* SPDX-License-Identifier: CC0-1.0
*/
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <fcntl.h>
ssize_t pc(char x)
{
return write(1, &x, 1);
}
int main(int argc, char **argv)
{
_Bool quoted = 0, commented = 0, front = 1;
unsigned int depth = 0;
unsigned int source_lines = 1;
int fd;
if (argc == 1) {
fd = 0;
} else if (argc == 2) {
fd = open(argv[1], 0);
} else {
fprintf(stderr, "Too many arguments\n");
return 1;
}
for (;;) {
auto char buf[4096];
ssize_t len = read(fd, &buf, 4096);
if (len <= 0)
break;
for (ssize_t i = 0; i < len; ++i) {
if (buf[i] == '/' && buf[i + 1] == '*') {
commented = 1;
write(1, "/*", 2);
++i;
continue;
} else if (buf[i] == '*' && buf[i + 1] == '/') {
if (commented) {
commented = 0;
write(1, "*/\n", 3);
i += 2;
continue;
} else {
fprintf(stderr, "%u: too many */\n",
source_lines);
return 1;
}
}
if (commented) {
pc(buf[i]);
continue;
}
if (buf[i] == '}') {
if (!front) {
pc(';');
pc('\n');
front = 1;
}
if (depth == 0) {
fprintf(stderr, "%u: too many }\n",
source_lines);
return 1;
}
--depth;
for (unsigned int j = 0; j < depth; ++j) {
pc('\t');
}
pc('}');
pc('\n');
if (depth == 0)
pc('\n');
front = 1;
continue;
}
if (buf[i] == '\n') {
++source_lines;
continue;
} else if (buf[i] == '\t') {
continue;
}
if (buf[i] == ' ') {
if (front) {
} else if (!quoted && !commented) {
if (buf[i + 1] == ' ') {
continue;
}
pc(' ');
}
continue;
} else if (buf[i] == '\t') {
continue;
}
if (front) {
for (unsigned int j = 0; j < depth; ++j) {
pc('\t');
}
}
if (buf[i] == ';') {
pc(';');
pc('\n');
front = 1;
} else if (buf[i] == '{') {
++depth;
pc('{');
pc('\n');
front = 1;
} else {
front = 0;
pc(buf[i]);
}
}
}
}
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