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#include "config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <fstream>
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#include <iostream>
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#include "pcrepp.hh"
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#include "data_scanner.hh"
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#include "data_parser.hh"
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using namespace std;
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const char *TMP_NAME = "scanned.tmp";
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int main(int argc, char *argv[])
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{
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int c, retval = EXIT_SUCCESS;
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bool prompt = false;
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while ((c = getopt(argc, argv, "p")) != -1) {
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switch (c) {
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case 'p':
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prompt = true;
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break;
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default:
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retval = EXIT_FAILURE;
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break;
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}
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}
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argc -= optind;
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argv += optind;
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if (retval != EXIT_SUCCESS) {
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}
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else if (argc != 1) {
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fprintf(stderr, "error: expecting a single file name argument\n");
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retval = EXIT_FAILURE;
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}
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else {
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istream *in;
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string dstname;
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FILE *out;
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if (strcmp(argv[0], "-") == 0) {
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in = &cin;
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}
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else {
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ifstream *ifs = new ifstream(argv[0]);
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if (!ifs->is_open()) {
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fprintf(stderr, "error: unable to open file\n");
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retval = EXIT_FAILURE;
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}
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else {
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in = ifs;
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}
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}
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if (retval == EXIT_FAILURE) {
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}
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else if ((out = fopen(TMP_NAME, "w")) == NULL) {
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fprintf(stderr, "error: unable to temporary file for writing\n");
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retval = EXIT_FAILURE;
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}
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else {
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char cmd[2048];
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string line;
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int rc;
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getline(*in, line);
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if (strcmp(argv[0], "-") == 0) {
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line = " " + line;
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}
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data_scanner ds(line.substr(13));
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data_token_t token;
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data_parser dp(&ds);
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dp.parse();
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dp.print(out);
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fclose(out);
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sprintf(cmd, "diff -u %s %s", argv[0], TMP_NAME);
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rc = system(cmd);
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if (rc != 0) {
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if (prompt) {
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char resp;
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printf("Would you like to update the original file? (y/N) ");
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fflush(stdout);
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if (scanf("%c", &resp) == 1 && resp == 'y')
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rename(TMP_NAME, argv[0]);
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else
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retval = EXIT_FAILURE;
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}
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else {
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fprintf(stderr, "error: mismatch\n");
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retval = EXIT_FAILURE;
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}
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}
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}
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}
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return retval;
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}
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