add linux support

.gitignore

@@ -1,3 +1,12 @@
-.DS_Store
-EPUB3Processor.xcodeproj/xcuserdata
-*.pyc
+# .gitignore
+
+
+*~
+*#
+.#*
+*rej
+*orig
+pinentry*
+*.hi
+*.o
+*.a

EPUB3.c

@@ -1,3 +1,9 @@
+#define _POSIX_C_SOURCE 200809L
+#include <limits.h>
+#ifndef MAXNAMLEN
+#define MAXNAMLEN NAME_MAX
+#endif
+
 #include "EPUB3.h"
 #include "EPUB3_private.h"
 

EPUB3_private.h

@@ -1,12 +1,19 @@
 #include <stdio.h>
+#include <string.h>
+
 #include <libxml/tree.h>
 #include <libxml/parser.h>
 #include <libxml/xmlreader.h>
 #include <libxml/xpath.h>
 #include <libxml/xpathInternals.h>
 #include <sys/types.h>
 #include <sys/stat.h>
+#ifdef __linux__
+#include <dirent.h>
+#else
 #include <sys/dirent.h>
+#endif
+
 #include <string.h>
 #include <assert.h>
 #include <errno.h>

Example.c

@@ -0,0 +1,32 @@
+#include <stdio.h>
+#include "EPUB3.h"
+
+#define EPUB3ErrorNone 0
+
+
+
+int main(void) {
+    EPUB3Error result;
+    EPUB3Ref epub = EPUB3CreateWithArchiveAtPath("example.epub", &result);
+    if (epub == NULL) {
+        fprintf(stderr, "Failed to open EPUB file\n");
+        return 1;
+    }
+
+    EPUB3Error extractResult = EPUB3ExtractArchiveToPath(epub, "output_directory");
+    if (extractResult != EPUB3ErrorNone) {
+        fprintf(stderr, "Failed to extract EPUB file\n");
+        EPUB3Release(epub);
+        return 1;
+    }
+
+    char *title = EPUB3CopyTitle(epub);
+    char *identifier = EPUB3CopyIdentifier(epub);
+
+    printf("Title: %s\n", title);
+    printf("Identifier: %s\n", identifier);
+
+    // Free or release resources as needed
+    EPUB3Release(epub);
+    return 0;
+}

README.md

@@ -19,6 +19,22 @@ EPUB3Processor is written in pure C language conforming to ANSI 99 standard. It
 
 ###Usage and Testing
 
+#### Build for linux
+``` shell
+gcc -std=c99 -Wall $(xml2-config --cflags) -I. -I./support_libs/MiniZip/ -c EPUB3.c -o EPUB3.o
+```
+
+#### real-world usage:
+```shell
+$ gcc -std=c99 -Wall $(xml2-config --cflags) -I. -I./support_libs/MiniZip/ -c EPUB3.c -o EPUB3.o
+$ gcc -std=c99 -Wall $(xml2-config --cflags) -I. -I./support_libs/MiniZip/ -c Example.c
+$ gcc -std=c99 -Wall -I./support_libs/MiniZip/ -c support_libs/MiniZip/unzip.c -o unzip.o
+$ gcc -std=c99 -Wall -I./support_libs/MiniZip/ -c support_libs/MiniZip/ioapi.c -o ioapi.o
+$ gcc Example.o EPUB3.o unzip.o ioapi.o -o my_program $(xml2-config --libs) -lz
+```
+
+
+###
 Current Xcode project for EPUB3Processor generates a static library named libEPUB3Processor.a. Link to this library in your client code or simply include and compile the code in your project.
 
 **API - see EPUB3.h**