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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "arg.h"
#include "util.h"
#define LAT_SHORT_ARGS "cltbrpn:Vh"
#define LAT_USAGE "usage: lat [-cltbrpnVh] [file...]"
struct config conf;
void help(void) {
printf("lat | lazy cat - a cat clone with some quality-of-life "
"embellishments\n\n");
printf("%s\n\n", LAT_USAGE);
printf(
"options:\n"
"\t-c\t toggle color\n"
"\t-l\t toggle line numbers\n"
"\t-t\t toggle file info headers\n"
"\t-b\t toggle binary mode, -b forces binary and -bb forces NOT binary\n"
"\t-r\t print everything to stdout (or equivalent)\n"
"\t-p\t print file with the pager (uses less)\n"
"\t-n\t set the name of the file in the title\n"
"\t-V\t show program version\n"
"\t-h\t display this help text\n\n");
printf("environment:\n"
"\tNO_COLOR, see https://no-color.org/\n");
}
void examples(void) {
printf(
"examples:\n"
"\tlat file1\n\t\t print the contents of file1 with the default "
"formatting\n"
"\tlat - file1\n\t\t read from stdin (the '-' flag reads from "
"stdin) "
"and then print the contents of stdin and file1\n"
"\tlat -nc file1 file2\n\t\t print the contents of file1 and "
"file2 "
"without printing line numbers or colors\n"
"\tlat --binary file.txt\n\t\t force file.txt to be treated as a binary "
"file\n"
"\tlat -bb --pager file.txt\n\t\t force file.txt to NOT be treated "
"as a binary file and print it in the pager\n"
"\tcurl example.com | lat\n\t\t pipe the results of 'curl example.com' "
"into lat\n"
"\tfzf --preview 'lat -l {}'\n\t\t use lat as the file viewer in fzf\n");
}
void version(void) {
printf("lat - v%s built %s at %s\n", LAT_VERSION, __DATE__, __TIME__);
}
void argerr(void) {
printf("\n%s\n", LAT_USAGE);
printf("run '--help' for more information\n");
exit(EXIT_FAILURE);
}
int parseargs(int argc, char *argv[]) {
char opt;
while ((opt = getopt(argc, argv, LAT_SHORT_ARGS)) != -1) {
switch (opt) {
case 'c':
conf.color = !conf.color;
break;
case 'l':
conf.lines = !conf.lines;
break;
case 't':
conf.headers = !conf.headers;
break;
case 'b':
if (conf.force_binary < 0)
conf.force_binary = 1;
else
conf.force_binary = !conf.force_binary;
break;
case 'r':
conf.literal = !conf.literal;
break;
case 'p':
conf.pager = !conf.pager;
break;
case 'n':
conf.name = optarg;
break;
case 'V':
version();
exit(EXIT_SUCCESS);
break;
case 'h':
help();
exit(EXIT_SUCCESS);
break;
default:
argerr();
break;
}
}
return optind;
}
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