A test proggram i made when looking at the line struct.

diff --git a/.gitignore b/.gitignore
index d711c73..01d7463 100644 (file)
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 /tomd
 /client
 /tomc
+/tests/find_lines/a.out

diff --git a/tests/find_lines/main.c b/tests/find_lines/main.c
new file mode 100644 (file)
index 0000000..e821bf5
--- /dev/null
+++ b/tests/find_lines/main.c
@@ -0,0 +1,99 @@
+/* Copyright (C) 2018 Thomas Balzer */
+
+/* This file is part of tomd. */
+
+/* tomd is free software: you can redistribute it and/or modify */
+/* it under the terms of the GNU General Public License as published by */
+/* the Free Software Foundation, either version 3 of the License, or */
+/* (at your option) any later version. */
+
+/* tomd is distributed in the hope that it will be useful, */
+/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
+/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the */
+/* GNU General Public License for more details. */
+
+/* You should have received a copy of the GNU General Public License */
+/* along with tomd.  If not, see <http://www.gnu.org/licenses/>. */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+static struct{
+  char *buf;
+}options;
+
+struct line{
+  char *buf;
+  struct line *next;
+};
+
+static struct line *find_lines(void)
+{
+  struct line *lines = malloc(sizeof(struct line));
+  struct line *cur_line = lines;
+  struct line *old_line = lines;
+  char *ptr = options.buf;
+  lines->buf = options.buf;
+  lines->next = NULL;
+  while(1){
+    if(*ptr == '\n'){
+      /* printf("----\n"); */
+      /* printf("found a new line.\n"); */
+      /* printf("'%c' -> \\0\n", *ptr); */
+      /* printf("'next \%c': %c\n", *(ptr+1)); */
+      *ptr = '\0';
+      ptr++;
+      if(*ptr == '\0'){
+        /* end of buf */
+        /* printf("found the end. (1)\n"); */
+        return lines;
+      }
+
+      while(*ptr == '\n'){
+        /* empty, discard */
+        /* printf("empty\n"); */
+        *ptr = '\0';
+        ptr++;
+      }
+
+      if(*ptr == '\0'){
+        /* end of buf */
+        /* printf("found the end. (2)\n"); */
+        return lines;
+      }
+
+      /* printf("hallo there.\n"); */
+      cur_line = malloc(sizeof(struct line));
+      old_line->next = cur_line;
+      old_line = cur_line;
+      cur_line->buf = ptr;
+    }
+    /* printf("|%c|\n", *ptr);  */
+    ptr++;
+  }      
+}
+
+int main(int argc, char **argv)
+{
+  options.buf = malloc(sizeof(char) * 1024);
+  strcpy(options.buf,
+         "THIS IS A TEST BUFFER.\nWHAT A LINE (1)\n"
+         "AND ANOTHER ONE WHAT A FUCKING WORLD.\n\n\n\n\n\n\n\n\n"
+         "TEST THE LAST\n\n"
+         "JUST KIDDING HERE IS THE LAST LINE\n\0"
+         "WHAT ABOUT THIS ONE YOU FREAK OF NATURE\0\0\0");
+
+  struct line *result = find_lines();
+  struct line *cur_line = result;
+
+  int count = 0;
+  while(1){
+    printf("[%d] '%s'\n", count++, cur_line->buf);
+    if(cur_line->next == NULL){
+      /* printf("found the end.\n"); */
+      break;
+    }
+    cur_line = cur_line->next;
+  }
+}