diff --git a/README.md b/README.md
index 367d9c2..c05991a 100644
--- a/README.md
+++ b/README.md
@@ -47,3 +47,4 @@ Change `$/.config/notewrapper/config.json`. If it does not exist. On building, i
 - [ ] Fixe all the small stuff marked //(TODO LATER) in the code
 - [ ] Add a way to delete notes
 - [ ] Comply with GPL-3 notice (add info about no waranty, etc.)
+- [ ] A converter for both type of journals
diff --git a/config.json b/config.json
index e542f77..2ead78a 100644
--- a/config.json
+++ b/config.json
@@ -3,5 +3,7 @@
   "render": true,
   "jumpToEndOfFileOnLaunch": true,
   "editor": "neovim",
-  "journalRegex": ".*journal.*"
+  "journalRegex": ".*journal.*",
+  "dateEntry": "# %a %d %m %Y",
+  "newLineOnOpening": true
 }
diff --git a/src/main.c b/src/main.c
index 76a95c3..4ca0be9 100644
--- a/src/main.c
+++ b/src/main.c
@@ -83,25 +83,43 @@ int main(int argc, char *argv[]) {
     cJSON *shouldRenderJSON = cJSON_GetObjectItem(json, "render");
     if (shouldRenderJSON && cJSON_IsBool(shouldRenderJSON)) {
         shouldRender = cJSON_IsTrue(shouldRenderJSON) ? 1 : 0;
-    }
+    } else {debug("config.json did not contained a correct \"render\" value. The default is 1.");}
+    
     int shouldJumpToEnd = 1;
     cJSON *shouldJumpToEndJSON = cJSON_GetObjectItem(json, "jumpToEndOfFileOnLaunch");
     if (shouldJumpToEndJSON && cJSON_IsBool(shouldJumpToEndJSON)) {
       shouldJumpToEnd = cJSON_IsTrue(shouldJumpToEndJSON) ? 1 : 0;
-    }
+    } else {debug("config.json did not contained a correct \"jumpToEndOfFileOnLaunch\" value. The default is 1.");}
+    
     char *editorToOpen = "neovim"; // default
     cJSON *editorToOpenJSON = cJSON_GetObjectItem(json, "editor");
-    if (editorToOpenJSON || cJSON_IsString(editorToOpenJSON)) {
+    if (editorToOpenJSON && cJSON_IsString(editorToOpenJSON)) {
       debug("Editor in config.json is %s", editorToOpenJSON->valuestring);
       error(!isStringInArray(editorToOpenJSON->valuestring, supportedEditor, numEditors), "user", "%s (fetched from config.json) is not a supported editor.");
       editorToOpen = strdup(editorToOpenJSON->valuestring); // we must strdup and not just = as we will free all the json after (before parsing args)
-    }
+    } else {debug("config.json did not contained a correct \"editor\" value. The default is neovim.");}
+    
     cJSON *journalRegexJSON = cJSON_GetObjectItem(json, "journalRegex");
     char *journalRegex = ".*journal.*"; // default regex pattern for the journal
-    if (journalRegexJSON || cJSON_IsString(journalRegexJSON)) {
+    if (journalRegexJSON && cJSON_IsString(journalRegexJSON)) {
       debug("The regex in config.json is %s", journalRegexJSON->valuestring);
       journalRegex = strdup(journalRegexJSON->valuestring);
-    }
+    } else {debug("config.json did not contained a correct \"journalRegex\" value. The default is .*journal.*");}
+
+    char *timeFormat = "# \%a \%d \%m \%Y";// default
+    cJSON *timeFormatJSON = cJSON_GetObjectItem(json, "dateEntry");
+    if (timeFormatJSON && cJSON_IsString(timeFormatJSON)) {
+      debug("The time format in config.json is %s", timeFormatJSON->valuestring);
+      timeFormat = strdup(timeFormatJSON->valuestring);
+    } else {debug("config.json did not contained a correct \"dateEntry\" value. The default is \"# \%a \%d \%m \%Y\".");}
+
+    int newLineOnOpening = 1;
+    cJSON *newLineOnOpeningJSON = cJSON_GetObjectItem(json, "newLineOnOpening");
+    if (newLineOnOpeningJSON && cJSON_IsBool(newLineOnOpeningJSON)) {
+      debug("The value for newLineOnOpening in config.json is %d", cJSON_IsTrue(newLineOnOpeningJSON));
+      newLineOnOpening = cJSON_IsTrue(newLineOnOpeningJSON) ? 1 : 0;
+    } else {debug("config.json did not contained a correct \"newLineOnOpening\" value. The default is true.");}
+
     //cleans up 
     cJSON_Delete(json);
     free(data);
@@ -258,13 +276,30 @@ note_selection:
           if (strcmp(noteSelected, "Create new note") != 0 && strcmp(noteSelected,"Back to vault selection") != 0 && strcmp(noteSelected, "Delete vault") != 0 && strcmp(noteSelected,"Quit (Ctrl+C)") != 0) {
 open_note:
             bypassNoteSelection =  HASH_MACRO; // we must reset bypassNoteSelection to avoid getting into an infinite loop of bypassing the note selection
-            char fullPath[PATH_MAX]; // (TODO LATER) Find a more appropriate and descriptive name for the variable
+            char *fullPath = malloc(PATH_MAX); // (TODO LATER) Find a more appropriate and descriptive name for the variable
             sprintf(fullPath, "%s/%s/%s", notesDirectoryString, vaultSelected, noteSelected); // (TODO LATER) change all sprintf to snprintf which checks for buffer size
+            // if it is a journal we must update it before
+            regex_t regex;
+            int regexReturn = regcomp(&regex, journalRegex, 0);
+            error(regexReturn, "program", "Regex compilation failed.");
+            regexReturn = regexec(&regex, noteSelected, 0, NULL, 0);
+            if (!regexReturn) { // if the regex matches -> it's a journal
+              debug("%s is a journal. Updating it...", noteSelected);
+              fullPath = updateJournal(fullPath, noteSelected, timeFormat, shouldDebug); // we return the path. As if it is a divided journal we must point to the correct entry
+            }
+            if (newLineOnOpening) { //(TODO LATER) For some reason this does not applies to journals?
+              appendToFile(fullPath, "\n", shouldDebug);
+            }
             openEditor(fullPath, editorToOpen, shouldRender, shouldJumpToEnd, shouldDebug);
+            free(fullPath);
           } else if (strcmp(noteSelected,"Create new note") == 0) {
 note_creation:
             char *pathForNoteCreation = createNewNote(notesDirectoryString, vaultSelected, bypassNoteSelection, shouldDebug);
+            // (TODO LATER) Handle journal creation
             bypassNoteSelection =  HASH_MACRO; // we must reset bypassNoteSelection to avoid getting into an infinite loop of bypassing the note selection
+            if (newLineOnOpening) {
+              appendToFile(pathForNoteCreation, "\n", shouldDebug);
+            }
             openEditor(pathForNoteCreation, editorToOpen, shouldRender, shouldJumpToEnd, shouldDebug);
             //free(pathForNoteCreation);
           } else if (strcmp(noteSelected,"Back to vault selection") == 0) {
diff --git a/src/notes.c b/src/notes.c
index 92a953a..0198254 100644
--- a/src/notes.c
+++ b/src/notes.c
@@ -1,6 +1,96 @@
 #include "notes.h"
 
-char** getVaultsFromDirectory(char *dirString, size_t *count, int shouldDebug) { 
+char **getJournalsFromVault(char *pathToVault, char *vault, char *journalRegex,  int *count, int shouldDebug) {
+    debug("Searching %s for journals", vault);
+    // originally from https://www.geeksforgeeks.org/c/c-program-list-files-sub-directories-directory/
+    struct dirent *vaultEntry;
+    char tempPath[PATH_MAX];
+    snprintf(tempPath, sizeof(tempPath), "%s/%s", pathToVault, vault); // sets the full absolute path to fullPathEntry
+    DIR *vaultDirectory = opendir(tempPath);
+    error(vaultDirectory==NULL, "program", "Could not open directory %s", tempPath);
+    char **journalsArray = NULL; // will contain all the notes
+    size_t journalsCount = 0; // we need to count how many notes there is to always readjust how many memory we alloc
+    
+    // https://stackoverflow.com/a/1085120 for regex code
+    regex_t regex;
+    int regexReturn;
+    // compiles the regex
+    regexReturn = regcomp(&regex, journalRegex, 0);
+    error(regexReturn, "program", "Regex could not compile. Perhaps there is an error with the regex string");
+    debug("Regex compiled succesfully");
+    // Refer https://pubs.opengroup.org/onlinepubs/7990989775/xsh/readdir.html
+    // for readdir()
+    debug("┌------------------------------------------\nDetected files and dirs from the vault");
+    while ((vaultEntry = readdir(vaultDirectory)) != NULL) { // we iterate over every entry from the dir. So files and dirs (. and .. included)
+      altDebug("%s  ", vaultEntry->d_name);
+      // (TODO LATER) check if it is a file or a dir
+      if (vaultEntry->d_name[0] != '.') { // if the entry don't start with a dot (so hidden dirs and hidden files)
+        regexReturn = regexec(&regex, vaultEntry->d_name, 0, NULL, 0);
+        if (!regexReturn) { // if the regex matches
+          altDebug("matched with the regex. It is a journal.\n");
+          journalsArray = realloc(journalsArray, (journalsCount + 1)*sizeof(char*)); // resize notesArray so that
+          journalsArray[journalsCount] = strdup(vaultEntry->d_name); // copy the dir name into notesArray
+          journalsCount++;
+        } else {
+          altDebug("did not matched with the regex. It is a note.\n");
+        }
+      } else {
+        altDebug(" was ignored\n");
+      }
+    }
+    altDebug("└ ------------------------------\n");
+    // free's some used memory
+    closedir(vaultDirectory);
+    *count = journalsCount; // passes the number of files
+    return journalsArray;
+}
+
+char** getNotesFromVault(char *pathToVault, char *vault, char *journalRegex, int *count, int shouldDebug) {
+    // this function is inputed a path to a vault (which was selected before) and outpus all the suitable notes (so not the hidden ones)
+    // (TODO LATER) Check how it handles non .md files
+    // originally from https://www.geeksforgeeks.org/c/c-program-list-files-sub-directories-directory/
+    debug("Searching %s for notes", vault);
+    struct dirent *vaultEntry; // (TODO LATER) change name of these variables. notesDirectory is dumb as it is the directory of vaults
+    char tempPath[PATH_MAX];
+    snprintf(tempPath, sizeof(tempPath), "%s/%s", pathToVault, vault); // sets the full absolute path to fullPathEntry
+    DIR *vaultDirectory = opendir(tempPath);
+    error(vaultDirectory==NULL, "program", "Could not open directory %s", tempPath);
+    char **notesArray = NULL; // will contain all the notes
+    size_t notesCount = 0; // we need to count how many notes there is to always readjust how many memory we alloc
+    // Refer https://pubs.opengroup.org/onlinepubs/7990989775/xsh/readdir.html
+    // for readdir()
+    debug("┌------------------------------\nDetected Files and dirs from the vault:");
+    while ((vaultEntry = readdir(vaultDirectory)) != NULL) {
+
+      altDebug("%s ", vaultEntry->d_name);
+      // for the regex code https://stackoverflow.com/a/1085120 
+      regex_t regex;
+      int regexReturn;
+      // compiles the regex
+      regexReturn = regcomp(&regex, journalRegex, 0);
+      if (vaultEntry->d_name[0] != '.') { // if the entry don't start with a dot (so hidden dirs and hidden files)
+        char fullPathEntry[PATH_MAX]; // creates a string of size of the maximum path lenght
+        snprintf(fullPathEntry, sizeof(fullPathEntry), "%s/%s/%s", pathToVault, vault, vaultEntry->d_name); // sets the full absolute path to fullPathEntry
+        // check if it matches the regex. If it does not match regexReturn != 0.
+        regexReturn = regexec(&regex, vaultEntry->d_name, 0, NULL, 0);
+        struct stat metadataPathEntry;
+        if (stat(fullPathEntry, &metadataPathEntry) == 0 && regexReturn && S_ISREG(metadataPathEntry.st_mode)) { // if this entry is a file
+          notesArray = realloc(notesArray, (notesCount + 1)*sizeof(char*)); // resize notesArray so that
+          notesArray[notesCount] = strdup(vaultEntry->d_name); // copy the dir name into notesArray
+          notesCount++;
+          altDebug("did not match with the regex. It is a note.\n");
+        } else if (!regexReturn) {altDebug("matched with the regex. It is a journal.\n");}
+      } else {altDebug("was ignored\n");}
+    }
+    altDebug("└ ------------------------------\n");
+    // (TODO LATER) Alphabetically sort them
+    // free's some used memory
+    closedir(vaultDirectory);
+    *count = notesCount; // passes the number of files
+    return notesArray;
+}
+
+char **getVaultsFromDirectory(char *dirString, size_t *count, int shouldDebug) { 
     // (TODO LATER) it might be a good idea to check if these directories exist
     // (TODO LATER) expand ~ as it does not work with opendir()
     // this function is inputed a path to a directory (which comes usually from the config file) and outpus all the suitable directories (so not the hidden ones) which will serve as separate vaults for notes
@@ -37,93 +127,27 @@ char** getVaultsFromDirectory(char *dirString, size_t *count, int shouldDebug) {
     return dirsArray;
 }
 
+char *updateJournal(char *path, char *journal, char *timeFormat, int shouldDebug) {
+  //(TODO LATER) Per journal format configuration
+  // (TODO LATER) with all the usage of PATH_MAX we should really calculate max inputed path or something like this
+  path[PATH_MAX] = '\0'; // it assures it is a string (Most cases this does nothing). But rewriting at least one bytes make the compile happy. He doesn't want to return an unchanged input.
+  debug("Handling the journal %s", path);
 
-char** getNotesFromVault(char *pathToVault, char *vault, char *journalRegex, int *count, int shouldDebug) {
-    // this function is inputed a path to a vault (which was selected before) and outpus all the suitable notes (so not the hidden ones)
-    // (TODO LATER) Check how it handles non .md files
-    // originally from https://www.geeksforgeeks.org/c/c-program-list-files-sub-directories-directory/
-    debug("Searching %s for notes", vault);
-    struct dirent *vaultEntry; // (TODO LATER) change name of these variables. notesDirectory is dumb as it is the directory of vaults
-    char tempPath[PATH_MAX];
-    snprintf(tempPath, sizeof(tempPath), "%s/%s", pathToVault, vault); // sets the full absolute path to fullPathEntry
-    DIR *vaultDirectory = opendir(tempPath);
-    error(vaultDirectory==NULL, "program", "Could not open directory %s", tempPath);
-    char **notesArray = NULL; // will contain all the notes
-    size_t notesCount = 0; // we need to count how many notes there is to always readjust how many memory we alloc
-    // Refer https://pubs.opengroup.org/onlinepubs/7990989775/xsh/readdir.html
-    // for readdir()
-    debug("┌------------------------------\nDetected Files and dirs from the vault:");
-    while ((vaultEntry = readdir(vaultDirectory)) != NULL) {
+  char *date = getFormatedTime(timeFormat, shouldDebug);
+  debug("Formated time for the journal's entry is %s", date);
 
-      altDebug("%s ", vaultEntry->d_name);
-      // for the regex code https://stackoverflow.com/a/1085120 
-      regex_t regex;
-      int regexReturn;
-      // compiles the regex
-      regexReturn = regcomp(&regex, journalRegex, 0);
-      if (vaultEntry->d_name[0] != '.') { // if the entry don't start with a dot (so hidden dirs and hidden files)
-        char fullPathEntry[PATH_MAX]; // creates a string of size of the maximum path lenght
-        snprintf(fullPathEntry, sizeof(fullPathEntry), "%s/%s/%s", pathToVault, vault, vaultEntry->d_name); // sets the full absolute path to fullPathEntry
-        // check if it matches the regex. If it does not match regexReturn != 0.
-        regexReturn = regexec(&regex, vaultEntry->d_name, 0, NULL, 0);
-        struct stat metadataPathEntry;
-        if (stat(fullPathEntry, &metadataPathEntry) == 0 && regexReturn && !S_ISDIR(metadataPathEntry.st_mode)) { // if this entry is a file
-          notesArray = realloc(notesArray, (notesCount + 1)*sizeof(char*)); // resize notesArray so that
-          notesArray[notesCount] = strdup(vaultEntry->d_name); // copy the dir name into notesArray
-          notesCount++;
-          altDebug("did not match with the regex. It is a note.\n");
-        } else if (!regexReturn) {altDebug("matched with the regex. It is a journal.\n");}
-      } else {altDebug("was ignored\n");}
-    }
-    altDebug("└ ------------------------------\n");
-    // (TODO LATER) Alphabetically sort them
-    // free's some used memory
-    closedir(vaultDirectory);
-    *count = notesCount; // passes the number of files
-    return notesArray;
-}
-
-
-char **getJournalsFromVault(char *pathToVault, char *vault, char *journalRegex,  int *count, int shouldDebug) {
-    debug("Searching %s for journals", vault);
-    // originally from https://www.geeksforgeeks.org/c/c-program-list-files-sub-directories-directory/
-    struct dirent *vaultEntry;
-    char tempPath[PATH_MAX];
-    snprintf(tempPath, sizeof(tempPath), "%s/%s", pathToVault, vault); // sets the full absolute path to fullPathEntry
-    DIR *vaultDirectory = opendir(tempPath);
-    error(vaultDirectory==NULL, "program", "Could not open directory %s", tempPath);
-    char **journalsArray = NULL; // will contain all the notes
-    size_t journalsCount = 0; // we need to count how many notes there is to always readjust how many memory we alloc
-    
-    // https://stackoverflow.com/a/1085120 for regex code
-    regex_t regex;
-    int regexReturn;
-    // compiles the regex
-    regexReturn = regcomp(&regex, journalRegex, 0);
-    error(regexReturn, "program", "Regex could not compile. Perhaps there is an error with the regex string");
-    debug("Regex compiled succesfully");
-    // Refer https://pubs.opengroup.org/onlinepubs/7990989775/xsh/readdir.html
-    // for readdir()
-    debug("┌------------------------------------------\nDetected files and dirs from the vault");
-    while ((vaultEntry = readdir(vaultDirectory)) != NULL) { // we iterate over every entry from the dir. So files and dirs (. and .. included)
-      altDebug("%s  ", vaultEntry->d_name);
-      if (vaultEntry->d_name[0] != '.') { // if the entry don't start with a dot (so hidden dirs and hidden files)
-        regexReturn = regexec(&regex, vaultEntry->d_name, 0, NULL, 0);
-        if (!regexReturn) { // if the regex matches
-          altDebug("matched with the regex. It is a journal.\n");
-          journalsArray = realloc(journalsArray, (journalsCount + 1)*sizeof(char*)); // resize notesArray so that
-          journalsArray[journalsCount] = strdup(vaultEntry->d_name); // copy the dir name into notesArray
-          journalsCount++;
-        } else {
-          altDebug("did not matched with the regex. It is a note.\n");
-        }
-      } else {
-        altDebug(" was ignored\n");
-      }
-    }
-    altDebug("└ ------------------------------\n");
-    // free's some used memory
-    closedir(vaultDirectory);
-    *count = journalsCount; // passes the number of files
-    return journalsArray;
+  struct stat metadata;
+  error(stat(path, &metadata), "program", "stat() failed to get information about %s", path);
+  if (S_ISREG(metadata.st_mode)) {
+    debug("%s is a unified journal.", path);
+    if (!isStringInFile(path, date, shouldDebug)) { // if there is no entry for current date
+      appendToFile(path, date, shouldDebug);
+    } // if there is an entry do nothing 
+  } else if (S_ISDIR(metadata.st_mode)) {
+    debug("%s is a divided journal.", path);
+  
+  } else {
+    error(1, "program", "%s is not a file and not a directory.", path);
+  }
+  return path;
 }
diff --git a/src/notes.h b/src/notes.h
index 6d286d1..86ffea4 100644
--- a/src/notes.h
+++ b/src/notes.h
@@ -2,13 +2,21 @@
 #define NOTES_H
 #include "utils.h"
 #include "ui.h"
-char **getVaultsFromDirectory(char *dirString, size_t *count, int debug);
-// this function is inputed a path to a directory (which comes usually from the config file) and outpus all the suitable directories (so not the hidden ones) which will serve as separate vaults for notes
-char **getNotesFromVault(char *pathToVault, char *vault, char *journalRegex, int *count, int debug);
-// this function is inputed a path to a vault (which was selected before) and outpus all the suitable notes (so not the hidden ones)
-// journalRegex is the regex code for the journals. If a note matches this code, it is treated as a journal and it is not outputed from this function.
-char **getJournalsFromVault(char *pathToVault, char *vault, char *journalRegex, int *count, int debug);
+char **getJournalsFromVault(char *pathToVault, char *vault, char *journalRegex, int *count, int shouldDebug);
 // gets the journals from the vault
 // to distinguish journals from note we use regex.
 // Note: we must handle them separatly as journals can either be a single file (which will treat specially) or a directory
+
+char **getNotesFromVault(char *pathToVault, char *vault, char *journalRegex, int *count, int shouldDebug);
+// this function is inputed a path to a vault (which was selected before) and outpus all the suitable notes (so not the hidden ones)
+// journalRegex is the regex code for the journals. If a note matches this code, it is treated as a journal and it is not outputed from this function.
+char **getVaultsFromDirectory(char *dirString, size_t *count, int shouldDebug);
+// this function is inputed a path to a directory (which comes usually from the config file) and outpus all the suitable directories (so not the hidden ones) which will serve as separate vaults for notes
+char *updateJournal(char *path, char *journal, char *timeFormat, int shouldDebug);
+// path is the path to the file
+// journal is the name of the file
+// handles both type of journal (divided and unified)
+// creates new entry with date
+// for divided select if we want to acces to a new entry or a old one
+// returns the path to the file that needs to be opened
 #endif
diff --git a/src/utils.c b/src/utils.c
index a2c9e5b..7b60f9b 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -81,6 +81,16 @@ int doesEditorExist (char *editorToCheck, int shouldDebug) {     // Some exectua
     return 0; // program not found
 }
 
+char *getFormatedTime(char *format, int shouldDebug) {
+  debug("Inputed time format is %s", format);
+  time_t t = time(NULL);
+  struct tm *tm = localtime(&t);
+  char *buf = malloc(BUFFER_SIZE);
+  strftime(buf, BUFFER_SIZE, format, tm);
+  debug("Formated time is %s", buf);
+  return buf;
+}
+
 int isStringInArray(const char *string, const char **array, const int len) {
   for (int i = 0; i < len; i++) {
     if (strcmp(string, array[i]) == 0) {
@@ -90,6 +100,30 @@ int isStringInArray(const char *string, const char **array, const int len) {
   return 0;
 }
 
+int isStringInFile(const char *path, const char *string, const int shouldDebug) {
+  FILE *file = fopen(path, "r");
+  error(file == NULL, "program", "While searching for \"%s\", we could not open file %s", string, path);
+  char buf[BUFFER_SIZE];
+  
+  while (fgets(buf, BUFFER_SIZE, file) != NULL) {
+    if (strstr(buf, string) != NULL) {
+      debug("%s contains the substring %s", buf, string);
+      return 1;
+    }
+  }
+  debug("The string %s is not inside %s", string, path);
+  return 0;
+}
+
+void appendToFile(const char *path, const char *string, const int shouldDebug) {
+  // (TODO LATER) we should check if it is not already at the end and not append. (Usefull for \n)
+  FILE *file = fopen(path, "a");
+  error(file == NULL, "program", "could not open %s", path);
+  fprintf(file, "%s", string);
+  fclose(file);
+  debug("%s was appended to %s succesfully", string, path);
+}
+
 void sanitize(char *string) {
   for (int i = 0; i < strlen(string); i++) {
     if ((!isalnum((unsigned char)string[i]) && strchr("/\\:*?\"\'<>\n\r\t", string[i])) || ((i == 0 || i == 1) && string[i] == '.')) { // replace unwanted chars by '_'. '.' is replaced if it is only the first two chars
diff --git a/src/utils.h b/src/utils.h
index 9fcbbf8..a4d1a2e 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -16,6 +16,8 @@
 #include <cjson/cJSON.h>
 #include <regex.h>
 #include <errno.h> 
+#include <time.h>
+#define BUFFER_SIZE 256 //standard buffer size.
 #define debug(message, ...) \
     _debug(shouldDebug, __FILE__, __LINE__, __func__, message, ##__VA_ARGS__)
 #define altDebug(message, ...) \
@@ -27,6 +29,7 @@
 extern const char *supportedEditor[]; // array of supported editors
 extern const int numEditors; // number of supported editors
 
+//(TODO LATER) organise this mess
 int compareString(const void *a, const void *b);
 //compares two strings alphabetically.
 //this function is used for qsort
@@ -44,6 +47,10 @@ int isStringInArray(const char *string, const char **array, const int len);
 // Returns 1 if the string is in the array
 // Returns 0 if the string is not in the array
 // If you want to only check the first n elements of the array, pass n as len
+int isStringInFile(const char *path, const char *string, const int shouldDebug);
+// returns 1 if the string is in the file
+// returns 0 if the string is not in the file
+void appendToFile(const char *path, const char *string, const int shouldDebug);
 void sanitize(char *string);
 // replace unwanted chars by '_'. '.' is replaced if it is only the first two chars
 int rmrf(char *path);
@@ -54,4 +61,8 @@ int openEditor(char *path, char *editor, int render, int endOfFile, int debug);
 // render: if we render the .md file with Vivify
 // endOfFile: if we put the cursor at the end of the file when opening
 // The program resumes when the editor is closed
+char *getFormatedTime(char *format, int shouldDebug);
+// see https://pubs.opengroup.org/onlinepubs/7908799/xsh/strftime.html? for formats
+// returns a string (buffered at 256 chars)
+// you should not forgot to free this string as it is in the heap
 #endif