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Add runtime configuration and a workaround for wrapped text

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Signed-off-by: 0xf8 <0xf8.dev@proton.me>
This commit is contained in:
0xf8 2023-02-25 13:58:54 -05:00
parent d852c1c4be
commit ce1f74886d
Signed by: 0xf8
GPG Key ID: 446580D758689584
2 changed files with 90 additions and 51 deletions
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4
README.md
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@ -11,3 +11,7 @@ OR
## install
`install -m755 rbtext /usr/bin`
## runtime configuration
This is done by setting environment variables
- `RBTEXT_FULLSCREEN` (default: Enabled) - Clear screen every print (useful for text that will wrap)

133
rbtext.c
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@ -2,87 +2,122 @@
Copyright 2022-2023 0xf8.dev@proton.me
This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
This program is free software: you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
You should have received a copy of the GNU General Public License along with
this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <memory.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
// How many milliseconds the program will wait until the next print ( DEFAULT = 100 )
#define CONF_SLEEP_TIMEMS (long)100
// How many seconds (in addition to millisecond above) the program will wait ( DEFAULT = 0 )
#define CONF_SLEEP_TIMESEC (time_t)0
// How many times a color should be shown before switching to the next ( DEFAULT = 2 )
// How many milliseconds the program will wait until the next print ( DEFAULT =
// 100 )
#define CONF_SLEEP_TIMEMS (long)100
// How many seconds (in addition to millisecond above) the program will wait (
// DEFAULT = 0 )
#define CONF_SLEEP_TIMESEC (time_t)0
// How many times a color should be shown before switching to the next ( DEFAULT
// = 2 )
#define CONF_COLOR_LAG 2
// Don't set to 0
// Disabled = -1
// Enabled = 1
// int FLAG_name = default;
int FLAG_FULLSCREEN = 1;
// RICERS:
// To add colors, simply add the color (according to the format below) to COLORS
// FORMAT: "R;G;B",
const char *COLORS[] = {
"193;71;87", // RED
"193;116;71", // ORANGE
"193;177;71", // YELLOW
"149;193;71", // GREEN
"71;193;161", // CYAN
"71;165;193", // BLUE
"155;71;193", // PURPLE
"193;71;153", // PINK
"193;71;87", // RED
"193;116;71", // ORANGE
"193;177;71", // YELLOW
"149;193;71", // GREEN
"71;193;161", // CYAN
"71;165;193", // BLUE
"155;71;193", // PURPLE
"193;71;153", // PINK
};
unsigned long COLORS_SIZE = sizeof(COLORS) / sizeof(char *);
unsigned long long t = 0;
void genColors(char *s) {
char *cstr = (char *)malloc(64 + 1);
char *cstr = (char *)malloc(64 + 1);
for (unsigned long i = 0; i < strlen(s); i++) {
unsigned long c = ((t + i) / CONF_COLOR_LAG) % COLORS_SIZE;
snprintf(cstr, 64, "\e[38;2;%sm", COLORS[c]);
printf("%s%c\e[0m",cstr,s[i]);
}
for (unsigned long i = 0; i < strlen(s); i++) {
unsigned long c = ((t + i) / CONF_COLOR_LAG) % COLORS_SIZE;
snprintf(cstr, 64, "\e[38;2;%sm", COLORS[c]);
printf("%s%c\e[0m", cstr, s[i]);
}
free(cstr);
free(cstr);
}
void set_flag(int *flag, const char *env) {
char *e = getenv(env);
if (e != NULL) {
int v = atoi(e);
if (v == 0)
return;
*flag = v;
}
}
int main(int argc, char **argv) {
if (argc < 2) {
// [ERROR] No arguments given. USAGE: ... <text>
printf("\e[1;31m[ERROR]\e[0m No arguments given.\n\tUSAGE: \e[34m%s \e[33m<text>\e[0m\n",argv[0]);
return 1;
}
if (argc < 2) {
// [ERROR] No arguments given. USAGE: ... <text>
printf("\e[1;31m[ERROR]\e[0m No arguments given.\n\tUSAGE: \e[34m%s "
"\e[33m<text>\e[0m\n",
argv[0]);
return 1;
}
uint reqSize = 0;
for (int i = 1; i < argc; i++) {
reqSize += strlen(argv[i]);
}
set_flag(&FLAG_FULLSCREEN, "RBTEXT_FULLSCREEN");
char *text = (char *)malloc(reqSize + argc);
uint reqSize = 0;
for (int i = 1; i < argc; i++) {
reqSize += strlen(argv[i]);
}
// Adds all the arguments together with spaces seperating them
for (int i = 1, j = 0; i < argc; i++) {
for (unsigned int k = 0; k < strlen(argv[i]); k++, j++)
text[j] = argv[i][k];
char *text = (char *)malloc(reqSize + argc);
text[j] = ' ';
j++;
}
// Adds all the arguments together with spaces seperating them
for (int i = 1, j = 0; i < argc; i++) {
for (unsigned int k = 0; k < strlen(argv[i]); k++, j++)
text[j] = argv[i][k];
struct timespec rem, req = {CONF_SLEEP_TIMESEC, CONF_SLEEP_TIMEMS*1000*1000};
while (1) {
printf("\r\e[2K");
genColors(text);
fflush(stdout);
nanosleep(&req, &rem);
t += 1;
}
text[j] = ' ';
j++;
}
return 0;
struct timespec rem,
req = {CONF_SLEEP_TIMESEC, CONF_SLEEP_TIMEMS * 1000 * 1000};
while (1) {
if (FLAG_FULLSCREEN == 1)
printf("\e[2J\e[f");
else
printf("\r");
genColors(text);
fflush(stdout);
nanosleep(&req, &rem);
t += 1;
}
return 0;
}