retroforth/tools/unu.c
crc ae0732e5cd begin moving tools
FossilOrigin-Name: baac9ff86fe6db99066d01dd322d6c3291c513d0d8d447643e99f28cbe1a0d6b
2017-10-19 19:06:21 +00:00

65 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) {
if (file == NULL || line_buffer == NULL)
{
printf("Error: file or line buffer pointer is null.");
exit(1);
}
int ch = getc(file);
int 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;
}