more updates for dos compatibility

BUILD.BAT

@@ -10,12 +10,12 @@ ECHO.
 REM Create build directory if it doesn't exist
 IF NOT EXIST build MKDIR build
 
-ECHO Compiling addnote.exe...
+ECHO Compiling cnadd.exe...
-TCC -A -w -ml -I.\include -ebuild\addnote.exe src\addnote.c
+TCC -A -w -ml -I.\include -ebuild\cnadd.exe src\cnadd.c
 IF ERRORLEVEL 1 GOTO ERROR
 
-ECHO Compiling dumpnotes.exe...
+ECHO Compiling cndump.exe...
-TCC -A -w -ml -I.\include -ebuild\dumpnotes.exe src\dumpnotes.c
+TCC -A -w -ml -I.\include -ebuild\cndump.exe src\cndump.c
 IF ERRORLEVEL 1 GOTO ERROR
 
 ECHO.

CMakeLists.txt

@@ -0,0 +1,18 @@
+# CMakeLists.txt - For CLion IDE support only
+# Actual builds should use: make (Linux) or make -f MAKEFILE.TC (DOS/Win32)
+
+cmake_minimum_required(VERSION 3.10)
+project(cnotes C)
+
+# Force C89/C90 standard
+set(CMAKE_C_STANDARD 90)
+set(CMAKE_C_STANDARD_REQUIRED ON)
+set(CMAKE_C_EXTENSIONS OFF)
+
+# Match our Makefile flags for consistent IDE warnings
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -ansi -Wpedantic -Wall -Wextra")
+
+include_directories(include)
+
+add_executable(cnadd src/cnadd.c)
+add_executable(cndump src/cndump.c)

MAKEFILE.TC

@@ -23,16 +23,16 @@ BUILDDIR = build
 .c.obj:
 	$(CC) $(CFLAGS) -c -o$*.obj $<
 
-all: $(BUILDDIR) $(BUILDDIR)\addnote.exe $(BUILDDIR)\dumpnotes.exe
+all: $(BUILDDIR) $(BUILDDIR)\cnadd.exe $(BUILDDIR)\cndump.exe
 
 $(BUILDDIR):
 	if not exist $(BUILDDIR) mkdir $(BUILDDIR)
 
-$(BUILDDIR)\addnote.exe: $(SRCDIR)\addnote.c $(INCDIR)\platform.h
+$(BUILDDIR)\cnadd.exe: $(SRCDIR)\cnadd.c $(INCDIR)\platform.h $(INCDIR)\config.h
-	$(CC) $(CFLAGS) -e$(BUILDDIR)\addnote.exe $(SRCDIR)\addnote.c
+	$(CC) $(CFLAGS) -e$(BUILDDIR)\cnadd.exe $(SRCDIR)\cnadd.c
 
-$(BUILDDIR)\dumpnotes.exe: $(SRCDIR)\dumpnotes.c $(INCDIR)\platform.h
+$(BUILDDIR)\cndump.exe: $(SRCDIR)\cndump.c $(INCDIR)\platform.h $(INCDIR)\config.h
-	$(CC) $(CFLAGS) -e$(BUILDDIR)\dumpnotes.exe $(SRCDIR)\dumpnotes.c
+	$(CC) $(CFLAGS) -e$(BUILDDIR)\cndump.exe $(SRCDIR)\cndump.c
 
 clean:
 	if exist $(BUILDDIR)\*.exe del $(BUILDDIR)\*.exe

Makefile

@@ -2,17 +2,17 @@
 # Strict C89/ANSI compliant build
 
 CC = gcc
-CFLAGS = -ansi -pedantic -Wall -Wextra -O2
+CFLAGS = -ansi -Wpedantic -Wall -Wextra -O2
 INCLUDES = -I include
 
 SRCDIR = src
 INCDIR = include
 BUILDDIR = build
 
-SOURCES = $(SRCDIR)/addnote.c $(SRCDIR)/dumpnotes.c
+SOURCES = $(SRCDIR)/cnadd.c $(SRCDIR)/cndump.c
-HEADERS = $(INCDIR)/platform.h
+HEADERS = $(INCDIR)/platform.h $(INCDIR)/config.h
 
-TARGETS = $(BUILDDIR)/addnote $(BUILDDIR)/dumpnotes
+TARGETS = $(BUILDDIR)/cnadd $(BUILDDIR)/cndump
 
 .PHONY: all clean install uninstall
 
@@ -21,19 +21,19 @@ all: $(BUILDDIR) $(TARGETS)
 $(BUILDDIR):
 	mkdir -p $(BUILDDIR)
 
-$(BUILDDIR)/addnote: $(SRCDIR)/addnote.c $(HEADERS)
+$(BUILDDIR)/cnadd: $(SRCDIR)/cnadd.c $(HEADERS)
-	$(CC) $(CFLAGS) $(INCLUDES) -o $@ $(SRCDIR)/addnote.c
+	$(CC) $(CFLAGS) $(INCLUDES) -o $@ $(SRCDIR)/cnadd.c
 
-$(BUILDDIR)/dumpnotes: $(SRCDIR)/dumpnotes.c $(HEADERS)
+$(BUILDDIR)/cndump: $(SRCDIR)/cndump.c $(HEADERS)
-	$(CC) $(CFLAGS) $(INCLUDES) -o $@ $(SRCDIR)/dumpnotes.c
+	$(CC) $(CFLAGS) $(INCLUDES) -o $@ $(SRCDIR)/cndump.c
 
 clean:
 	rm -rf $(BUILDDIR)
 
 # Install to /usr/local/bin (optional, run with sudo)
 install: $(TARGETS)
-	install -m 755 $(BUILDDIR)/addnote /usr/local/bin/
+	install -m 755 $(BUILDDIR)/cnadd /usr/local/bin/
-	install -m 755 $(BUILDDIR)/dumpnotes /usr/local/bin/
+	install -m 755 $(BUILDDIR)/cndump /usr/local/bin/
 
 uninstall:
-	rm -f /usr/local/bin/addnote /usr/local/bin/dumpnotes
+	rm -f /usr/local/bin/cnadd /usr/local/bin/cndump

compile_commands.json

@@ -0,0 +1,12 @@
+[
+  {
+    "directory": ".",
+    "command": "gcc -ansi -Wpedantic -Wall -Wextra -O2 -I include -c src/cnadd.c -o build/cnadd.o",
+    "file": "src/cnadd.c"
+  },
+  {
+    "directory": ".",
+    "command": "gcc -ansi -Wpedantic -Wall -Wextra -O2 -I include -c src/cndump.c -o build/cndump.o",
+    "file": "src/cndump.c"
+  }
+]

include/config.h

@@ -0,0 +1,77 @@
+/*
+ * config.h - Configuration settings for cnotes
+ *
+ * Platform-specific defaults for notes file location.
+ * Users can override at compile time with -DCNOTES_DIR="path"
+ * or at runtime via CNOTES_PATH environment variable.
+ */
+
+#ifndef CONFIG_H
+#define CONFIG_H
+
+#include "platform.h"
+
+/*
+ * CNOTES_FILE - The filename for the notes database
+ * This is the same across all platforms (8.3 compatible for DOS)
+ */
+#ifndef CNOTES_FILE
+#define CNOTES_FILE "cnotes.csv"
+#endif
+
+/*
+ * CNOTES_DIR - Default directory path (relative to home)
+ *
+ * Can be overridden at compile time:
+ *   gcc -DCNOTES_DIR=\".cnotes\" ...
+ *   tcc -DCNOTES_DIR=".cnotes" ...
+ *
+ * Platform defaults:
+ *   DOS:     Current directory (empty string)
+ *   Windows: .cnotes (in USERPROFILE)
+ *   Unix:    .local/share/cnotes (XDG-style)
+ */
+#ifndef CNOTES_DIR
+    #if defined(__MSDOS__) || defined(__DOS__)
+        #define CNOTES_DIR ""
+    #elif defined(_WIN32)
+        #define CNOTES_DIR ".cnotes"
+    #else
+        #define CNOTES_DIR ".local/share/cnotes"
+    #endif
+#endif
+
+/*
+ * CNOTES_PATH_ENV - Environment variable to override notes location
+ *
+ * If set, this environment variable provides the full path to the
+ * notes directory, overriding both CNOTES_DIR and HOME_ENV.
+ *
+ * Example:
+ *   export CNOTES_PATH=/custom/path/to/notes
+ *   set CNOTES_PATH=C:\NOTES
+ */
+#define CNOTES_PATH_ENV "CNOTES_PATH"
+
+/*
+ * Field lengths and limits
+ */
+#define CATEGORY_LENGTH 10
+#define FREETEXT_MAX_LENGTH 125
+#define DEFAULT_CATEGORY "General"
+
+/*
+ * MAX_ENTRIES - Maximum number of entries dumpnotes can load
+ *
+ * DOS has limited memory, so we use a smaller default there.
+ * Can be overridden at compile time: -DMAX_ENTRIES=500
+ */
+#ifndef MAX_ENTRIES
+    #if defined(__MSDOS__) || defined(__DOS__)
+        #define MAX_ENTRIES 500
+    #else
+        #define MAX_ENTRIES 5000
+    #endif
+#endif
+
+#endif /* CONFIG_H */

src/cnadd.c

@@ -5,12 +5,7 @@
 #include <sys/stat.h>
 
 #include "platform.h"
-
+#include "config.h"
-#define CATEGORY_LENGTH 10
-#define FREETEXT_MAX_LENGTH 125
-#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;
@@ -34,23 +29,46 @@ int ensure_directory_exists(const char *path) {
 }
 
 int get_cnotes_path(char *buffer, size_t bufsize) {
+    const char *custom_path;
     const char *home;
     size_t len;
 
+    /* First check for CNOTES_PATH environment variable override */
+    custom_path = getenv(CNOTES_PATH_ENV);
+    if (custom_path != NULL && strlen(custom_path) > 0) {
+        if (strlen(custom_path) >= bufsize) {
+            fprintf(stderr, "Error: Path too long\n");
+            return 0;
+        }
+        strcpy(buffer, custom_path);
+        return 1;
+    }
+
+    /* Fall back to HOME_ENV + CNOTES_DIR */
     home = getenv(HOME_ENV);
     if (home == NULL) {
         fprintf(stderr, "Error: %s environment variable not set\n", HOME_ENV);
+        fprintf(stderr, "Hint: Set %s to specify notes directory\n", CNOTES_PATH_ENV);
         return 0;
     }
 
-    /* Build path: $HOME/.local/share/cnotes */
+    /* Build path: $HOME/CNOTES_DIR (or just $HOME if CNOTES_DIR is empty) */
     len = strlen(home);
-    if (len + strlen(CNOTES_DIR) + 2 > bufsize) {
+    if (strlen(CNOTES_DIR) == 0) {
-        fprintf(stderr, "Error: Path too long\n");
+        /* DOS mode: use home directory directly */
-        return 0;
+        if (len >= bufsize) {
+            fprintf(stderr, "Error: Path too long\n");
+            return 0;
+        }
+        strcpy(buffer, home);
+    } else {
+        /* Unix/Windows: append CNOTES_DIR to home */
+        if (len + strlen(CNOTES_DIR) + 2 > bufsize) {
+            fprintf(stderr, "Error: Path too long\n");
+            return 0;
+        }
+        sprintf(buffer, "%s" PATH_SEP_STR "%s", home, CNOTES_DIR);
     }
-    
-    sprintf(buffer, "%s" PATH_SEP_STR "%s", home, CNOTES_DIR);
     return 1;
 }
 

src/cndump.c

@@ -6,16 +6,12 @@
 #include <stdlib.h>
 #include <string.h>
 #include "platform.h"
+#include "config.h"
 
 #define MAX_LENGTH 500 /* Allow fgets to read up to this many characters */
 #define DATE_LENGTH 10 /* YYYY-MM-DD */
 #define TIME_LENGTH 5 /* HH:MM */
-#define CATEGORY_LENGTH 10 /* CATEGORY__ */
 #define TXTMSG_LENGTH 125 /* Max length of a text message */
-#define MAX_ENTRIES 1500 /* Maximum number of entries to load */
-
-#define CNOTES_FILE "cnotes.csv"
-#define CNOTES_DIR ".local/share/cnotes"
 
 
 typedef enum {
@@ -150,23 +146,46 @@ int parse_line(const char *line, Entry *entry) {
 }
 
 int get_cnotes_path(char *buffer, size_t bufsize) {
+    const char *custom_path;
     const char *home;
     size_t len;
 
+    /* First check for CNOTES_PATH environment variable override */
+    custom_path = getenv(CNOTES_PATH_ENV);
+    if (custom_path != NULL && strlen(custom_path) > 0) {
+        if (strlen(custom_path) + strlen(CNOTES_FILE) + 2 > bufsize) {
+            fprintf(stderr, "Error: Path too long\n");
+            return 0;
+        }
+        sprintf(buffer, "%s" PATH_SEP_STR "%s", custom_path, CNOTES_FILE);
+        return 1;
+    }
+
+    /* Fall back to HOME_ENV + CNOTES_DIR */
     home = getenv(HOME_ENV);
     if (home == NULL) {
         fprintf(stderr, "Error: %s environment variable not set\n", HOME_ENV);
+        fprintf(stderr, "Hint: Set %s to specify notes directory\n", CNOTES_PATH_ENV);
         return 0;
     }
 
-    /* Build path: $HOME/.local/share/cnotes/cnotes.csv */
+    /* Build path to cnotes file */
     len = strlen(home);
-    if (len + strlen(CNOTES_DIR) + strlen(CNOTES_FILE) + 3 > bufsize) {
+    if (strlen(CNOTES_DIR) == 0) {
-        fprintf(stderr, "Error: Path too long\n");
+        /* DOS mode: file in home directory directly */
-        return 0;
+        if (len + strlen(CNOTES_FILE) + 2 > bufsize) {
+            fprintf(stderr, "Error: Path too long\n");
+            return 0;
+        }
+        sprintf(buffer, "%s" PATH_SEP_STR "%s", home, CNOTES_FILE);
+    } else {
+        /* Unix/Windows: HOME/CNOTES_DIR/CNOTES_FILE */
+        if (len + strlen(CNOTES_DIR) + strlen(CNOTES_FILE) + 3 > bufsize) {
+            fprintf(stderr, "Error: Path too long\n");
+            return 0;
+        }
+        sprintf(buffer, "%s" PATH_SEP_STR "%s" PATH_SEP_STR "%s", home, CNOTES_DIR, CNOTES_FILE);
     }
-
-    sprintf(buffer, "%s" PATH_SEP_STR "%s" PATH_SEP_STR "%s", home, CNOTES_DIR, CNOTES_FILE);
     return 1;
 }
 
@@ -192,8 +211,8 @@ int main(int argc, char *argv[]) {
     for (i = 1; i < argc; i++) {
         if (strcmp(argv[i], "-d") == 0 || strcmp(argv[i], "--date") == 0) {
             if (sort_mode != SORT_NONE) {
-                fprintf(stderr, "dumpnotes: cannot specify multiple sort options\n");
+                fprintf(stderr, "cndump: cannot specify multiple sort options\n");
-                fprintf(stderr, "usage: dumpnotes [[-d|--date] | [-c|--category]] [-r|--reverse] [filename]\n");
+                fprintf(stderr, "usage: cndump [[-d|--date] | [-c|--category]] [-r|--reverse] [filename]\n");
                 exit(1);
             }
             sort_mode = SORT_DATE;
@@ -201,8 +220,8 @@ int main(int argc, char *argv[]) {
 
         else if (strcmp(argv[i], "-c") == 0 || strcmp(argv[i], "--category") == 0) {
             if (sort_mode != SORT_NONE) {
-                fprintf(stderr, "dumpnotes: cannot specify multiple sort options\n");
+                fprintf(stderr, "cndump: cannot specify multiple sort options\n");
-                fprintf(stderr, "usage: dumpnotes [[-d|--date] | [-c|--category]] [-r|--reverse] [filename]\n");
+                fprintf(stderr, "usage: cndump [[-d|--date] | [-c|--category]] [-r|--reverse] [filename]\n");
                 exit(1);
             }
             sort_mode = SORT_CATEGORY;
@@ -228,7 +247,7 @@ int main(int argc, char *argv[]) {
     notesfile = fopen(file_path, "r");
     if (notesfile == NULL) {
         fprintf(stderr, "Error: Cannot open file '%s'\n", file_path);
-        fprintf(stderr, "Hint: Use 'addnote' to create your first entry\n");
+        fprintf(stderr, "Hint: Use 'cnadd' to create your first entry\n");
         return 1;
     }
 
@@ -238,7 +257,7 @@ int main(int argc, char *argv[]) {
             entry_count++;
         }
         else {
-            fprintf(stderr, "dumpnotes: invalid line: %s\n", line);
+            fprintf(stderr, "cndump: invalid line: %s\n", line);
         }
     }
     fclose(notesfile);