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#include <sass_interface.h>
#include <stdio.h>
#include <unistd.h>
#include <strings.h>
#include <errno.h>
#include <stdlib.h>
// a function to chomp stdin
char * chomp_stdin() {
const size_t read_size = 256;
size_t pos = 0;
size_t space_left = read_size;
size_t buf_size = read_size;
char *buf = malloc(read_size);
while(!feof(stdin)) {
size_t bytes_read = 0;
bytes_read = fread(buf + pos, sizeof(char), space_left, stdin);
if(ferror(stdin) || bytes_read == 0) {
break;
}
pos += bytes_read;
space_left = buf_size - pos;
if(space_left == 0) {
buf = realloc(buf, buf_size + read_size);
if(buf == NULL)
fprintf(stderr, "%s\n", strerror(errno));
buf_size += read_size;
space_left = read_size;
}
}
// if we didn't read anything, just return NULL;
if(pos == 0) {
free(buf);
return NULL;
}
// gotta throw a null terminator there
if (space_left != 0) {
buf[pos+1] = '\0';
}
else {
buf = realloc(buf, buf_size + read_size);
if(buf == NULL)
fprintf(stderr, "%s\n", strerror(errno));
buf[pos+1] = '\0';
}
return buf;
}
int main (int argc, char **argv) {
// load up our stdin
char *input = chomp_stdin();
if(input == NULL) {
exit(1);
}
// setup our parsing context
struct sass_context *ctx = sass_new_context();
ctx->source_string = input;
// parse
sass_compile(ctx);
// error check
if (ctx->error_status) {
if (ctx->error_message)
fprintf(stderr,"%s\n", ctx->error_message);
else
fprintf(stderr,"An error occured; no error message available\n");
return ctx->error_status;
}
else if (ctx->output_string) {
fprintf(stdout, "%s", ctx->output_string);
}
sass_free_context(ctx);
free(input);
return 0;
}
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