66 lines
1.3 KiB
C
66 lines
1.3 KiB
C
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <ctype.h>
|
|
#define KiB * 1024
|
|
void read_line(FILE *file, char *line_buffer) {
|
|
int ch, count;
|
|
if (file == NULL || line_buffer == NULL)
|
|
{
|
|
printf("Error: file or line buffer pointer is null.");
|
|
exit(1);
|
|
}
|
|
ch = getc(file);
|
|
count = 0;
|
|
while ((ch != '\n') && (ch != EOF)) {
|
|
line_buffer[count] = ch;
|
|
count++;
|
|
ch = getc(file);
|
|
}
|
|
line_buffer[count] = '\0';
|
|
}
|
|
char source[16 KiB];
|
|
int fenced(char *s)
|
|
{
|
|
int a = strcmp(s, "```");
|
|
int b = strcmp(s, "~~~");
|
|
if (a == 0) return 1;
|
|
if (b == 0) return 1;
|
|
return 0;
|
|
}
|
|
void extract(char *fname) {
|
|
char *buffer = (char *)source;
|
|
char fence[4];
|
|
FILE *fp;
|
|
int inBlock;
|
|
inBlock = 0;
|
|
fp = fopen(fname, "r");
|
|
if (fp == NULL)
|
|
return;
|
|
while (!feof(fp)) {
|
|
read_line(fp, buffer);
|
|
strncpy(fence, buffer, 3);
|
|
fence[3] = '\0';
|
|
if (fenced(fence)) {
|
|
if (inBlock == 0)
|
|
inBlock = 1;
|
|
else
|
|
inBlock = 0;
|
|
} else {
|
|
if ((inBlock == 1) && (strlen(buffer) != 0))
|
|
printf("%s\n", buffer);
|
|
}
|
|
}
|
|
fclose(fp);
|
|
}
|
|
int main(int argc, char **argv) {
|
|
int i = 1;
|
|
if (argc > 1) {
|
|
while (i < argc) {
|
|
extract(argv[i++]);
|
|
}
|
|
}
|
|
else
|
|
printf("unu\n(c) 2013-2017 charles childers\n\nTry:\n %s filename\n", argv[0]);
|
|
return 0;
|
|
}
|