live-bootstrap/sysc/python-2.0.1/files/keyword.c

46 lines
1.1 KiB
C

/*
* SPDX-FileCopyrightText: 2022 fosslinux <fosslinux@aussies.space>
*
* SPDX-License-Identifier: Python-2.0.1
*
* Reimplmentation of keyword.py main() in C, to break bootstrapping loop
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define MAX_LINE 128
int main() {
char filename[] = "Lib/keyword.py";
FILE *orig = fopen(filename, "r");
/* Read-write until starter line */
char *line = malloc(MAX_LINE);
do {
fgets(line, MAX_LINE, orig);
puts(line);
} while (strcmp(line, "#--start keywords--\n") != 0);
/* Perform the actual transformation */
while (fgets(line, MAX_LINE, stdin) != NULL) {
char *token = line;
while (*token != '"') token++;
token++;
/* Now at beginning of keyword */
char *end = token;
while (*end != '"') end++;
*end = '\0';
/* Write output line to stdout */
printf("'%s',\n", token);
/* For each line also advance orig pointer */
fgets(line, MAX_LINE, orig);
/* Cleanup */
free(line);
line = malloc(MAX_LINE);
}
/* Read-write until end */
while (fgets(line, MAX_LINE, orig) != NULL) {
puts(line);
}
}