poet

A terminal-based blogging interface
log files refs readme
edit.c (2955B)
      1#include <stdio.h>
      2#include <string.h>
      3#include <stdlib.h>
      4
      5#include "util.h"
      6#include "post.h"
      7
      8#define DELIMITER "++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r\n"
      9
     10int edit_read(char *filename, post_t **post) {
     11  char *content = util_read_file(filename);
     12  int len = strlen(content);
     13  int delimiter_start = 0;
     14  for (int i = 0; i < len; i++) {
     15    if (strncmp(content + i, DELIMITER, strlen(DELIMITER)) == 0) {
     16      delimiter_start = i;
     17      break;
     18    }
     19  }
     20  int delimiter_end = delimiter_start + strlen(DELIMITER);
     21  char head[delimiter_start + 1];
     22  memcpy(head, content, delimiter_start);
     23  head[delimiter_start] = '\0';
     24  char *body = malloc(sizeof(char) * (len - delimiter_end + 1));
     25  memcpy(body, content + delimiter_end, len - delimiter_end);
     26  body[len - delimiter_end] = '\0';
     27  free(content);
     28  *post = malloc(sizeof(post_t));
     29  post_init(*post);
     30  int line_nr = 0;
     31  int line_start = 0;
     32  for (int i = 0; i < (int) strlen(head); i++) {
     33    char c = head[i];
     34    if (c == '\n') {
     35      int line_end = i;
     36      if (i > 0 && head[i - 1] == '\r') {
     37        line_end--;
     38      }
     39      char *line = malloc(sizeof(char) * (line_end - line_start + 1));
     40      memcpy(line, head + line_start, line_end - line_start);
     41      line[line_end - line_start] = '\0';
     42      switch (line_nr) {
     43        case 0: {
     44          (*post)->label = line;
     45          break;
     46        }
     47        case 1: {
     48          (*post)->title = line;
     49          break;
     50        }
     51        case 2: {
     52          (*post)->summary = line;
     53          break;
     54        }
     55        case 3: {
     56          if (strcmp(line, "true") == 0) {
     57            (*post)->is_public = malloc(sizeof(bool));
     58            *(*post)->is_public = true;
     59          }
     60          else {
     61            (*post)->is_public = malloc(sizeof(bool));
     62            *(*post)->is_public = false;
     63          }
     64          free(line);
     65          break;
     66        }
     67        default:
     68          free(line);
     69          break;
     70      }
     71      line_start = i + 1;
     72      line_nr++;
     73    }
     74  }
     75  (*post)->content = body;
     76  remove(filename);
     77  return 0;
     78}
     79
     80int edit_write(char *filename, post_t *post) {
     81  FILE *fp = fopen(filename, "aw+");
     82  char label[500];
     83  snprintf(label, 500, "%s\r\n", post->label);
     84  fwrite(label, sizeof(char), strlen(label), fp);
     85  char title[500];
     86  snprintf(title, 500, "%s\r\n", post->title);
     87  fwrite(title, sizeof(char), strlen(title), fp);
     88  char summary[500];
     89  snprintf(summary, 500, "%s\r\n", post->summary);
     90  fwrite(summary, sizeof(char), strlen(summary), fp);
     91  char is_public[500];
     92  snprintf(is_public, 500, "%s\r\n", *post->is_public ? "true" : "false");
     93  fwrite(is_public, sizeof(char), strlen(is_public), fp);
     94  fwrite(DELIMITER, sizeof(char), strlen(DELIMITER), fp);
     95  int content_len = strlen(post->content) + 2;
     96  char content[content_len];
     97  snprintf(content, content_len, "%s", post->content);
     98  fwrite(content, sizeof(char), strlen(content), fp);
     99  fclose(fp);
    100  return 0;
    101}