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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <stdarg.h>
#include <unistd.h>
#include "fierrhea.h"
#include "romero.h"
#include "jenkins.h"
#define INPUT_BUFSIZ 4096
size_t START_Y = 0;
const char *A_TAB = " ";
void repchar(char ch, size_t limit) {
while (limit > 0) {
putc(ch, stdout);
limit--;
}
}
size_t get_longest_line(char *s) {
size_t lengths[INPUT_BUFSIZ] = {0};
size_t len;
size_t line;
len = 0;
line = 0;
for (size_t i = 0; i < strlen(s); i++) {
if (s[i] == '\n') {
lengths[line] = len;
line++;
len = 0;
continue;
}
len++;
}
size_t longest;
longest = lengths[0];
for (size_t i = 0; i < sizeof(lengths) / sizeof(*lengths); i++) {
if (lengths[i] > longest) {
longest = lengths[i];
}
}
return longest;
}
void box_draw_top(size_t y, size_t longest) {
repchar(' ', y);
repchar('/', 1);
repchar('-', longest);
repchar('\\', 1);
}
void box_draw_bottom(size_t y, size_t longest) {
repchar(' ', y);
repchar('\\', 1);
repchar('-', longest);
repchar('/', 1);
}
void box_draw_next_line(size_t y) {
repchar(' ', y);
repchar('|', 1);
}
void box_draw_end_line(size_t longest, size_t len) {
repchar(' ', longest - len);
repchar('|', 1);
}
int boxprintf(const char *fmt, ...) {
int count;
va_list list;
va_start(list, fmt);
size_t len = 0;
char data[INPUT_BUFSIZ] = {0};
char output[INPUT_BUFSIZ] = {0};
vsnprintf(data, sizeof(data) - 1, fmt, list);
// convert tabs to spaces
for (size_t i = 0, n = 0; i < strlen(data) && n < sizeof(output); i++, n++) {
if (data[i] == '\t') {
strcat(&output[n], A_TAB);
n = n + strlen(A_TAB) - 1;
continue;
}
output[n] = data[i];
}
size_t longest = get_longest_line(output);
box_draw_top(START_Y, longest);
puts("");
for (size_t i = 0; i < strlen(output); i++) {
if (i == strlen(output) - 1) {
box_draw_end_line(longest, len);
continue;
}
if (len == 0) {
box_draw_next_line(START_Y);
}
if (output[i] == '\n') {
box_draw_end_line(longest, len);
putc('\n', stdout);
len = 0;
continue;
}
putc(output[i], stdout);
len++;
}
puts("");
box_draw_bottom(START_Y, longest);
va_end(list);
return count;
}
void driver_fierrhea(char *input) {
START_Y = 22;
printf("%s", FIERRHEA);
printf("\\ /\n");
printf(" \\/\n");
boxprintf(input);
puts("");
}
void driver_jenkins(char *input) {
START_Y = 18;
boxprintf(input);
puts("");
printf(" | /\n");
printf(" | /\n");
printf(" |/\n");
puts(JENKINS);
}
void driver_romero(char *input) {
START_Y = 11;
boxprintf(input);
puts("");
printf(" \\ |\n");
printf(" \\ |\n");
printf(" \\|\n");
puts(ROMERO);
}
void usage(char *prog) {
printf("usage: %s [-d driver_name] [-] {input}\n"
"-h Show this help message\n"
"-d Driver name (fierrhea, jenkins, romero)\n"
"\n"
"- Read from standard input\n"
"input A quoted string\n", prog);
}
int main(int argc, char *argv[]) {
char driver_name[255] = {0};
char input[INPUT_BUFSIZ] = {0};
char *iptr = input;
// set default driver
strcpy(driver_name, "fierrhea");
int option;
while ((option = getopt (argc, argv, "hd:")) != -1) {
switch (option) {
case 'h':
usage(argv[0]);
exit(0);
case 'd':
strcpy(driver_name, optarg);
break;
case ':':
fprintf(stderr, "option requires value\n");
usage(argv[0]);
exit(1);
break;
case '?':
fprintf(stderr, "unknown option: %c\n", optopt);
usage(argv[0]);
exit(1);
break;
default:
usage(argv[0]);
exit(1);
}
}
if (optind < argc) {
strcpy(input, argv[optind]);
} else {
fprintf(stderr, "Missing input string or standard input (`-`)\n");
usage(argv[0]);
exit(1);
}
if (input[0] == '-') {
fread(input, 1, sizeof(input) - 1, stdin);
}
if (input[strlen(input) - 1] != '\n') {
input[strlen(input)] = '\n';
}
if (!strcmp(driver_name, "fierrhea")) {
driver_fierrhea(input);
} else if (!strcmp(driver_name, "jenkins")) {
driver_jenkins(input);
} else if (!strcmp(driver_name, "romero")) {
driver_romero(input);
} else {
fprintf(stderr, "invalid driver: '%s'\n", driver_name);
exit(1);
}
puts("");
return 0;
}
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