initial commit

.gitignore

@@ -0,0 +1,2 @@
+.idea/
+cmake-build-debug/

CMakeLists.txt

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+cmake_minimum_required(VERSION 4.0)
+project(cnotes C)
+
+set(CMAKE_C_STANDARD 90)
+
+add_executable(dumpnotes dumpnotes.c)
+add_executable(addnote addnote.c platform.h)
+

addnote.c

@@ -0,0 +1,178 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include "platform.h"
+
+#define CATEGORY_LENGTH 10
+#define FREETEXT_MAX_LENGTH 80
+#define DEFAULT_CATEGORY "General"
+#define CNOTES_DIR ".local/share/cnotes"
+#define CNOTES_FILE "cnotes.csv"
+
+int ensure_directory_exists(const char *path) {
+    struct stat st;
+    
+    if (stat(path, &st) == 0) {
+        /* Path exists, check if it's a directory */
+        if (S_ISDIR(st.st_mode)) {
+            return 1;
+        } else {
+            fprintf(stderr, "Error: %s exists but is not a directory\n", path);
+            return 0;
+        }
+    }
+    
+    /* Directory doesn't exist, try to create it */
+    if (mkdir_portable(path) != 0) {
+        fprintf(stderr, "Error: Cannot create directory %s\n", path);
+        return 0;
+    }
+    return 1;
+}
+
+int get_cnotes_path(char *buffer, size_t bufsize) {
+    const char *home;
+    size_t len;
+    
+    home = getenv("HOME");
+    if (home == NULL) {
+        fprintf(stderr, "Error: HOME environment variable not set\n");
+        return 0;
+    }
+    
+    /* Build path: $HOME/.local/share/cnotes */
+    len = strlen(home);
+    if (len + strlen(CNOTES_DIR) + 2 > bufsize) {
+        fprintf(stderr, "Error: Path too long\n");
+        return 0;
+    }
+    
+    sprintf(buffer, "%s/%s", home, CNOTES_DIR);
+    return 1;
+}
+
+int write_entry(const char *category, const char *message) {
+    char dir_path[512];
+    char file_path[600];
+    FILE *file;
+    time_t now;
+    struct tm *tm_info;
+    char date[11];
+    char time_str[6];
+    char padded_category[CATEGORY_LENGTH + 1];
+    char truncated_message[FREETEXT_MAX_LENGTH + 1];
+    int i;
+    
+    /* Get current date and time */
+    now = time(NULL);
+    if (now == -1) {
+        fprintf(stderr, "Error: Cannot get current time\n");
+        return 0;
+    }
+    
+    tm_info = localtime(&now);
+    if (tm_info == NULL) {
+        fprintf(stderr, "Error: Cannot convert time\n");
+        return 0;
+    }
+    
+    /* Format date as YYYY-MM-DD */
+    strftime(date, sizeof(date), "%Y-%m-%d", tm_info);
+    
+    /* Format time as HH:MM */
+    strftime(time_str, sizeof(time_str), "%H:%M", tm_info);
+    
+    /* Pad category to 10 characters */
+    strncpy(padded_category, category, CATEGORY_LENGTH);
+    padded_category[CATEGORY_LENGTH] = '\0';
+    for (i = (int)strlen(padded_category); i < CATEGORY_LENGTH; i++) {
+        padded_category[i] = ' ';
+    }
+    padded_category[CATEGORY_LENGTH] = '\0';
+    
+    /* Truncate message to 80 characters */
+    strncpy(truncated_message, message, FREETEXT_MAX_LENGTH);
+    truncated_message[FREETEXT_MAX_LENGTH] = '\0';
+    
+    /* Get cnotes directory path */
+    if (!get_cnotes_path(dir_path, sizeof(dir_path))) {
+        return 0;
+    }
+    
+    /* Ensure directory exists */
+    if (!ensure_directory_exists(dir_path)) {
+        return 0;
+    }
+    
+    /* Build full file path */
+    sprintf(file_path, "%s/%s", dir_path, CNOTES_FILE);
+    
+    /* Open file in append mode */
+    file = fopen(file_path, "a");
+    if (file == NULL) {
+        fprintf(stderr, "Error: Cannot open file %s\n", file_path);
+        return 0;
+    }
+    
+    /* Write entry */
+    fprintf(file, "%s,%s,%s,\"%s\"\n", 
+            date, time_str, padded_category, truncated_message);
+    
+    fclose(file);
+    
+    printf("Entry added to %s\n", file_path);
+    return 1;
+}
+
+void print_usage(const char *prog_name) {
+    fprintf(stderr, "Usage: %s [-c category] message\n", prog_name);
+    fprintf(stderr, "  -c category  Optional category (max 10 chars, default: %s)\n", 
+            DEFAULT_CATEGORY);
+    fprintf(stderr, "  message      Required message text (max 80 chars). Wrapped in double-quotes.\n");
+}
+
+int main(int argc, char *argv[]) {
+    const char *category;
+    const char *message;
+    int i;
+    
+    category = DEFAULT_CATEGORY;
+    message = NULL;
+    
+    /* Parse command-line arguments */
+    i = 1;
+    while (i < argc) {
+        if (strcmp(argv[i], "-c") == 0) {
+            if (i + 1 >= argc) {
+                fprintf(stderr, "Error: -c option requires an argument\n");
+                print_usage(argv[0]);
+                return 1;
+            }
+            category = argv[i + 1];
+            i += 2;
+        } else {
+            /* This is the message */
+            message = argv[i];
+            i++;
+            break;  /* Only take first non-option as message */
+        }
+    }
+    
+    /* Validate arguments */
+    if (message == NULL || strlen(message) == 0) {
+        fprintf(stderr, "Error: Message is required\n");
+        print_usage(argv[0]);
+        return 1;
+    }
+    
+    /* Write entry */
+    if (!write_entry(category, message)) {
+        return 1;
+    }
+    
+    return 0;
+}

dumpnotes.c

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+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define MAX_LINE_LENGTH 256
+#define DATE_LENGTH 10
+#define TIME_LENGTH 5
+#define CATEGORY_LENGTH 10
+#define FREETEXT_MAX_LENGTH 80
+#define CNOTES_DIR ".local/share/cnotes"
+#define CNOTES_FILE "cnotes.csv"
+
+typedef struct {
+    char date[DATE_LENGTH + 1];
+    char time[TIME_LENGTH + 1];
+    char category[CATEGORY_LENGTH + 1];
+    char freetext[FREETEXT_MAX_LENGTH + 1];
+} Entry;
+
+/* ReSharper disable CppParameterMayBeConst */
+void print_horizontal_line(char left, char middle, char right, char fill) {
+    /* ReSharper restore CppParameterMayBeConst */
+    int i;
+    printf("%c", left);
+    
+    /* Date column */
+    for (i = 0; i < DATE_LENGTH + 2; i++) printf("%c", fill);
+    printf("%c", middle);
+    
+    /* Time column */
+    for (i = 0; i < TIME_LENGTH + 2; i++) printf("%c", fill);
+    printf("%c", middle);
+    
+    /* Category column */
+    for (i = 0; i < CATEGORY_LENGTH + 2; i++) printf("%c", fill);
+    printf("%c", middle);
+    
+    /* Free text column */
+    for (i = 0; i < FREETEXT_MAX_LENGTH + 2; i++) printf("%c", fill);
+    printf("%c\n", right);
+}
+
+void print_header(void) {
+    /* Top border (double line) */
+    print_horizontal_line('+', '+', '+', '=');
+    
+    /* Header row */
+    printf("| %-*s | %-*s | %-*s | %-*s |\n",
+           DATE_LENGTH, "Date",
+           TIME_LENGTH, "Time",
+           CATEGORY_LENGTH, "Category",
+           FREETEXT_MAX_LENGTH, "Free Text");
+    
+    /* Bottom border (double line) */
+    print_horizontal_line('+', '+', '+', '=');
+}
+
+void print_entry(const Entry *entry) {
+    printf("| %-*s | %-*s | %-*s | %-*s |\n",
+           DATE_LENGTH, entry->date,
+           TIME_LENGTH, entry->time,
+           CATEGORY_LENGTH, entry->category,
+           FREETEXT_MAX_LENGTH, entry->freetext);
+}
+
+void print_footer(void) {
+    print_horizontal_line('+', '+', '+', '-');
+}
+
+int parse_line(const char *line, Entry *entry) {
+    const char *ptr;
+    int i;
+    
+    ptr = line;
+    
+    /* Parse date (10 chars) */
+    if (strlen(ptr) < DATE_LENGTH) return 0;
+    strncpy(entry->date, ptr, DATE_LENGTH);
+    entry->date[DATE_LENGTH] = '\0';
+    ptr += DATE_LENGTH;
+    
+    /* Skip comma */
+    if (*ptr != ',') return 0;
+    ptr++;
+    
+    /* Parse time (5 chars) */
+    if (strlen(ptr) < TIME_LENGTH) return 0;
+    strncpy(entry->time, ptr, TIME_LENGTH);
+    entry->time[TIME_LENGTH] = '\0';
+    ptr += TIME_LENGTH;
+    
+    /* Skip comma */
+    if (*ptr != ',') return 0;
+    ptr++;
+    
+    /* Parse category (10 chars) */
+    if (strlen(ptr) < CATEGORY_LENGTH) return 0;
+    strncpy(entry->category, ptr, CATEGORY_LENGTH);
+    entry->category[CATEGORY_LENGTH] = '\0';
+    ptr += CATEGORY_LENGTH;
+    
+    /* Skip comma */
+    if (*ptr != ',') return 0;
+    ptr++;
+    
+    /* Parse free text (quoted) */
+    if (*ptr != '"') return 0;
+    ptr++;
+    
+    i = 0;
+    while (*ptr != '\0' && *ptr != '"' && i < FREETEXT_MAX_LENGTH) {
+        entry->freetext[i++] = *ptr++;
+    }
+    entry->freetext[i] = '\0';
+    
+    /* Should end with quote */
+    if (*ptr != '"') return 0;
+    
+    return 1;
+}
+
+int get_cnotes_path(char *buffer, size_t bufsize) {
+    const char *home;
+    size_t len;
+    
+    home = getenv("HOME");
+    if (home == NULL) {
+        fprintf(stderr, "Error: HOME environment variable not set\n");
+        return 0;
+    }
+    
+    /* Build path: $HOME/.local/share/cnotes/cnotes.csv */
+    len = strlen(home);
+    if (len + strlen(CNOTES_DIR) + strlen(CNOTES_FILE) + 3 > bufsize) {
+        fprintf(stderr, "Error: Path too long\n");
+        return 0;
+    }
+    
+    sprintf(buffer, "%s/%s/%s", home, CNOTES_DIR, CNOTES_FILE);
+    return 1;
+}
+
+int main(void) {
+    FILE *file;
+    char file_path[600];
+    char line[MAX_LINE_LENGTH];
+    Entry entry;
+    int line_count;
+    int first_entry;
+    
+    /* Get cnotes file path */
+    if (!get_cnotes_path(file_path, sizeof(file_path))) {
+        return 1;
+    }
+    
+    file = fopen(file_path, "r");
+    if (file == NULL) {
+        fprintf(stderr, "Error: Cannot open file '%s'\n", file_path);
+        fprintf(stderr, "Hint: Use 'addnote' to create your first entry\n");
+        return 1;
+    }
+    
+    line_count = 0;
+    first_entry = 1;
+    
+    while (fgets(line, sizeof(line), file) != NULL) {
+        line_count++;
+        
+        /* Remove trailing newline */
+        line[strcspn(line, "\n")] = '\0';
+        
+        /* Skip empty lines */
+        if (strlen(line) == 0) continue;
+        
+        if (parse_line(line, &entry)) {
+            if (first_entry) {
+                print_header();
+                first_entry = 0;
+            }
+            print_entry(&entry);
+        } else {
+            fprintf(stderr, "Warning: Skipping malformed line %d\n", line_count);
+        }
+    }
+    
+    if (!first_entry) {
+        print_footer();
+    } else {
+        printf("No valid entries found.\n");
+    }
+    
+    fclose(file);
+    return 0;
+}

platform.h

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+#ifndef PLATFORM_H
+#define PLATFORM_H
+
+#ifdef _WIN32
+    #define mkdir_portable(path) mkdir(path)
+    #define PATH_SEPARATOR '\\'
+    #define HOME_ENV "USERPROFILE"
+#else
+    #define mkdir_portable(path) mkdir(path, 0755)
+    #define PATH_SEPARATOR '/'
+    #define HOME_ENV "HOME"
+#endif
+
+#endif