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#include "html.h"
#include "common.h"
//#include <time.h>
#define DEF_IUNIT 1024
#define DEF_OUNIT 64
#define DEF_MAX_NESTING 16
/* PRINT HELP */
void
print_help(const char *basename) {
/* usage */
printf("Usage: %s [OPTION]... [FILE]\n\n", basename);
/* description */
printf("Apply SmartyPants smart punctuation to the HTML in FILE (or standard input), and output the resulting HTML to standard output.\n\n");
/* main options */
printf("Main options:\n");
print_option('T', "time", "Show time spent in SmartyPants processing.");
print_option('i', "input-unit=N", "Reading block size. Default is " str(DEF_IUNIT) ".");
print_option('o', "output-unit=N", "Writing block size. Default is " str(DEF_OUNIT) ".");
print_option('h', "help", "Print this help text.");
print_option('v', "version", "Print Hoedown version.");
printf("\n");
/* ending */
printf("Options are processed in order, so in case of contradictory options the last specified stands.\n\n");
printf("When FILE is '-', read standard input. If no FILE was given, read standard input. Use '--' to signal end of option parsing. "
"Exit status is 0 if no errors occurred, 1 with option parsing errors, 4 with memory allocation errors or 5 with I/O errors.\n\n");
}
/* MAIN LOGIC */
int
main(int argc, char **argv)
{
int show_time = 0;
//struct timespec start, end;
/* buffers */
hoedown_buffer *ib, *ob;
size_t iunit = DEF_IUNIT, ounit = DEF_OUNIT;
/* files */
FILE *in = NULL;
/* option parsing */
int just_args = 0;
int i, j;
for (i = 1; i < argc; i++) {
char *arg = argv[i];
if (!arg[0]) continue;
if (just_args || arg[0] != '-') {
/* regular argument */
in = fopen(arg, "r");
if (!in) {
fprintf(stderr, "Unable to open input file \"%s\": %s\n", arg, strerror(errno));
return 5;
}
continue;
}
if (!arg[1]) {
/* arg is "-" */
in = stdin;
continue;
}
if (arg[1] != '-') {
/* parse short options */
char opt;
const char *val;
for (j = 1; (opt = arg[j]); j++) {
if (opt == 'h') {
print_help(argv[0]);
return 1;
}
if (opt == 'v') {
print_version();
return 1;
}
if (opt == 'T') {
show_time = 1;
continue;
}
/* options requiring value */
if (arg[++j]) val = arg+j;
else if (argv[++i]) val = argv[i];
else {
fprintf(stderr, "Wrong option '-%c' found.\n", opt);
return 1;
}
long int num;
int isNum = parseint(val, &num);
if (opt == 'i' && isNum) {
iunit = num;
break;
}
if (opt == 'o' && isNum) {
ounit = num;
break;
}
fprintf(stderr, "Wrong option '-%c' found.\n", opt);
return 1;
}
continue;
}
if (!arg[2]) {
/* arg is "--" */
just_args = 1;
continue;
}
/* parse long option */
char opt [100];
strncpy(opt, arg+2, 100);
opt[99] = 0;
char *val = strchr(opt, '=');
long int num = 0;
int isNum = 0;
if (val) {
*val = 0;
val++;
if (*val)
isNum = parseint(val, &num);
}
int opt_parsed = 0;
if (strcmp(opt, "help")==0) {
print_help(argv[0]);
return 1;
}
if (strcmp(opt, "version")==0) {
print_version();
return 1;
}
if (strcmp(opt, "input-unit")==0 && isNum) {
opt_parsed = 1;
iunit = num;
}
if (strcmp(opt, "output-unit")==0 && isNum) {
opt_parsed = 1;
ounit = num;
}
if (strcmp(opt, "time")==0) {
opt_parsed = 1;
show_time = 1;
}
if (!opt_parsed) {
fprintf(stderr, "Wrong option '%s' found.\n", arg);
return 1;
}
}
if (!in)
in = stdin;
/* reading everything */
ib = hoedown_buffer_new(iunit);
while (!feof(in)) {
if (ferror(in)) {
fprintf(stderr, "I/O errors found while reading input.\n");
return 5;
}
hoedown_buffer_grow(ib, ib->size + iunit);
ib->size += fread(ib->data + ib->size, 1, iunit, in);
}
if (in != stdin)
fclose(in);
/* performing SmartyPants processing */
ob = hoedown_buffer_new(ounit);
//clock_gettime(CLOCK_MONOTONIC, &start);
hoedown_html_smartypants(ob, ib->data, ib->size);
//clock_gettime(CLOCK_MONOTONIC, &end);
/* writing the result to stdout */
(void)fwrite(ob->data, 1, ob->size, stdout);
/* showing rendering time */
if (show_time) {
//TODO: enable this
//long long elapsed = ( end.tv_sec*1000000000 + end.tv_nsec)
// - (start.tv_sec*1000000000 + start.tv_nsec);
//if (elapsed < 1000000000)
// fprintf(stderr, "Time spent on rendering: %.2f ms.\n", ((double)elapsed)/1000000);
//else
// fprintf(stderr, "Time spent on rendering: %.3f s.\n", ((double)elapsed)/1000000000);
}
/* cleanup */
hoedown_buffer_free(ib);
hoedown_buffer_free(ob);
if (ferror(stdout)) {
fprintf(stderr, "I/O errors found while writing output.\n");
return 5;
}
return 0;
}
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