HotKey Daemon, simple hotkey daemon that woks using the evdev interface
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hkd/tests/parse_v2.c

163 lines
3.4 KiB

#define _POSIX_C_SOURCE 200809L
#define _DEFAULT_SOURCE
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#define ANSI_COLOR_RED "\x1b[31m"
#define ANSI_COLOR_RESET "\x1b[0m"
#define BLOCK_SIZE 256
#define parse_failure(str, line) {fprintf(stderr, "Error in config file at line %d: " str "\n", line); exit(EXIT_FAILURE);}
int main(int argc, char const *argv[])
{
if (argc < 2)
return 1;
FILE *fd;
fd = fopen(argv[1], "r");
if (!fd)
return -1;
int remaining = 0;
char block[BLOCK_SIZE + 1] = {0};
char *bb = NULL;
// 0: normal, 1: skip line 2: get directive 3: get keys 4: get command 5: output
int state = 0;
char *keys = NULL;
char *cmd = NULL;
int alloc_tmp = 0, alloc_size = 0;
for (;;) {
memset(block, 0, BLOCK_SIZE);
remaining = fread(block, sizeof(char), BLOCK_SIZE, fd);
if (!remaining)
break;
bb = block;
printf("---\tblock\t---\n%s\n--------------------------\n", block);
while (remaining > 0) {
// printf("state: %d\n", state);
switch (state) {
// First state
case 0:
// remove whitespaces
while (isspace(*bb) && remaining > 0)
bb++, remaining--;
if (remaining <= 0)
break;
// get state
if (*bb == '#')
state = 1;
else
state = 2;
break;
// Skip line (comment)
case 1:
// skip line
while (*bb != '\n' && remaining > 0)
bb++, remaining--;
if (remaining > 0)
state = 0;
break;
// Get compairson method
case 2:
switch (*bb) {
case '-':
break;
case '*':
break;
default:
exit(-1);
break;
}
bb++, remaining--;
state = 3;
break;
// Get keys
case 3:
if (!keys) {
if (!(keys = malloc(alloc_size = (sizeof(char) * 64))))
exit(-1);
memset(keys, 0, alloc_size);
alloc_tmp = 0;
} else if (alloc_tmp >= alloc_size) {
if (!(keys = realloc(keys, alloc_size *= 2)))
exit(-1);
memset(&keys[alloc_size / 2], 0, alloc_size / 2);
}
for (; remaining > 0 &&
(bb[alloc_tmp] != ':' && bb[alloc_tmp] != '\n') &&
alloc_tmp < alloc_size;
remaining--, alloc_tmp++);
if (remaining <= 0 || alloc_tmp == alloc_size) {
strncat(keys, bb, alloc_tmp);
bb += alloc_tmp;
break;
} else if (bb[alloc_tmp] == ':') {
strncat(keys, bb, alloc_tmp);
bb += alloc_tmp + 1;
state = 4;
break;
} else {
printf("char is \\n\n");
exit(-1);
}
break;
// Get command
case 4:
if (!cmd) {
if (!(cmd = malloc(alloc_size = (sizeof(char) * 128))))
exit(-1);
memset(cmd, 0, alloc_size);
alloc_tmp = 0;
} else if (alloc_tmp >= alloc_size) {
if (!(cmd = realloc(cmd, alloc_size *= 2)))
exit(-1);
memset(&cmd[alloc_size / 2], 0, alloc_size / 2);
}
for (; remaining > 0 &&
bb[alloc_tmp] != '\n' &&
alloc_tmp < alloc_size;
remaining--, alloc_tmp++);
if (remaining <= 0 || alloc_tmp == alloc_size) {
strncat(cmd, bb, alloc_tmp);
bb += alloc_tmp;
break;
} else {
strncat(cmd, bb, alloc_tmp);
if (!(bb[alloc_tmp - 1] == '\\'))
state = 5;
bb += alloc_tmp + 1;
break;
}
break;
case 5:
// Check and write here
printf("Keys: %s\n", keys);
printf("Command: %s\n", cmd);
// DO STUFF
free(keys);
free(cmd);
keys = cmd = NULL;
state = 0;
break;
default:
exit(-1);
break;
}
}
}
return 0;
}