Update HN data structure.

src/cnki.c

@@ -33,7 +33,7 @@ cnki_create(cnki_t **param)
 	memset((*param)->file_stat, 0, sizeof(file_stat_t));
 
 	(*param)->object_outline = NULL;
-	(*param)->object_nh = NULL;
+	(*param)->object_hn = NULL;
 
 	return 0;
 }
@@ -46,8 +46,8 @@ cnki_destroy(cnki_t **param)
 			free((*param)->file_stat);
 		if ((*param)->object_outline != NULL)
 			free((*param)->object_outline);
-		if ((*param)->object_nh != NULL)
+		if ((*param)->object_hn != NULL)
-			free((*param)->object_nh);
+			free((*param)->object_hn);
 		free(*param);
 	}
 }
@@ -59,7 +59,7 @@ cnki_info(cnki_t **param)
 		return 1;
 
 	if ((*param)->stat > 1)
-		printf("Reading file header at %x\n", ADDRESS_HEAD);
+		printf("Reading file header at 0x%x\n", ADDRESS_HEAD);
 
 	int addr[2];
 
@@ -84,7 +84,7 @@ cnki_info(cnki_t **param)
 	}
 
 	if ((*param)->stat > 1)
-		printf("Reading page count at %x\n", addr[0]);
+		printf("Reading page count at 0x%x\n", addr[0]);
 
 	fseek((*param)->fp_i, addr[0], SEEK_SET);
 	fread(&(*param)->file_stat->page, 4, 1, (*param)->fp_i);
@@ -94,7 +94,7 @@ cnki_info(cnki_t **param)
 			(*param)->file_stat->page);
 
 	if ((*param)->stat > 1)
-		printf("Reading outline count at %x\n", addr[1]);
+		printf("Reading outline count at 0x%x\n", addr[1]);
 
 	fseek((*param)->fp_i, addr[1], SEEK_SET);
 	fread(&(*param)->file_stat->outline, 4, 1, (*param)->fp_i);

src/cnki.h

@@ -44,26 +44,31 @@ typedef struct _object_outline_tree_t {
 	struct _object_outline_tree_t *right;
 } object_outline_tree_t;
 
-typedef enum _nh_code {
+typedef enum _hn_code {
 	CCITTFAX,
 	DCT_0,
-	DCT_1,
+	DCT_1, /* Inverted */
 	JBIG2,
 	JPX
-} nh_code;
+} hn_code;
 
-typedef struct _object_nh_t {
+typedef struct _hn_image_t {
-	int32_t address; /* Starting at end of object_outline_t */
+	int32_t format; /* hn_code */
+	int32_t address;
 	int32_t size;
-	int16_t page[2];
+	char *image;
+} hn_image_t;
+
+typedef struct _object_hn_t {
+	int32_t address; /* Starting at end of object_outline_t */
+	int32_t text_size;
+	int16_t image_length;
+	int16_t page;
 	int32_t zero[2];
 	char *text;
-	int32_t image_format; /* nh_code */
+	struct _hn_image_t *image_data;
-	int32_t image_address;
+	struct _object_hn_t *next;
-	int32_t image_size;
+} object_hn_t;
-	char *image;
-	struct _object_nh_t *next;
-} object_nh_t;
 
 typedef struct _cnki_t {
 	int stat;
@@ -72,7 +77,7 @@ typedef struct _cnki_t {
 	FILE *fp_o;
 	file_stat_t *file_stat;
 	object_outline_t *object_outline;
-	object_nh_t *object_nh;
+	object_hn_t *object_hn;
 } cnki_t;
 
 /* cnki_pdf.c */
@@ -82,5 +87,7 @@ int cnki_pdf(cnki_t **param);
 int cnki_outline_tree(object_outline_tree_t **outline_tree,
 	object_outline_t **outline, int *ids);
 
+/* cnki_zlib.c */
+
 /* cnki_xml.c */
 int cnki_xml(char **xml, FILE **fp);

src/cnki_caj.c

@@ -18,7 +18,7 @@ cnki_caj(cnki_t **param)
 		printf("Begin 'CAJ' conversion\n");
 
 	if ((*param)->stat > 1)
-		printf("Reading document body address at %x\n", ADDRESS_CAJ_BODY);
+		printf("Reading document body address at 0x%x\n", ADDRESS_CAJ_BODY);
 
 	int addr;
 
@@ -29,7 +29,7 @@ cnki_caj(cnki_t **param)
 	fseek((*param)->fp_i, addr, SEEK_SET);
 
 	if ((*param)->stat > 0)
-		printf("Advised document body address is %x\n", addr);
+		printf("Advised document body address is 0x%x\n", addr);
 
 	cnki_pdf(param);
 

src/cnki_hn.c

@@ -0,0 +1,134 @@
+/*
+ * Copyright (c) 2020, yzrh <yzrh@noema.org>
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <stdlib.h>
+
+#include "cnki.h"
+#include "pdf.h"
+#include "pdf_cnki.h"
+
+int
+cnki_hn(cnki_t **param)
+{
+	if (*param == NULL)
+		return 1;
+
+	if ((*param)->stat > 0)
+		printf("Begin 'HN' conversion\n");
+
+	if ((*param)->file_stat->page > 0)
+		(*param)->object_hn = malloc(sizeof(object_hn_t));
+	else
+		return 1;
+
+	if ((*param)->object_hn == NULL)
+		return 1;
+
+	if ((*param)->stat > 1) {
+		printf("Loading page(s)\n");
+		printf("\t%8s\t%8s\t%6s\t%4s\t%6s\t%6s\t%4s\t%8s\t%8s\n",
+			"address",
+			"text",
+			"length",
+			"page",
+			"zero",
+			"#",
+			"code",
+			"address",
+			"image");
+	}
+
+	object_hn_t *ptr = (*param)->object_hn;
+	for (int i = 0; i < (*param)->file_stat->page; i++) {
+		fread(&ptr->address, 4, 1, (*param)->fp_i);
+		fread(&ptr->text_size, 4, 1, (*param)->fp_i);
+		fread(&ptr->image_length, 2, 1, (*param)->fp_i);
+		fread(&ptr->page, 2, 1, (*param)->fp_i);
+		fread(&ptr->zero, 8, 1, (*param)->fp_i);
+
+		ptr->text = NULL;
+		ptr->image_data = NULL;
+		ptr->next = NULL;
+
+		if (i < (*param)->file_stat->page - 1) {
+			ptr->next = malloc(sizeof(object_hn_t));
+
+			if (ptr->next == NULL)
+				return 1;
+		}
+
+		ptr = ptr->next;
+	}
+
+	ptr = (*param)->object_hn;
+	while (ptr != NULL) {
+		ptr->text = malloc(ptr->text_size);
+
+		if (ptr->text == NULL)
+			return 1;
+
+		fseek((*param)->fp_i, ptr->address, SEEK_SET);
+		fread(ptr->text, ptr->text_size, 1, (*param)->fp_i);
+
+		if ((*param)->stat > 1)
+			printf("\t%08x\t%8d\t%6d\t%4d\t{%d, %d}",
+				ptr->address,
+				ptr->text_size,
+				ptr->image_length,
+				ptr->page,
+				ptr->zero[0],
+				ptr->zero[1]);
+
+		ptr->image_data = malloc(ptr->image_length * sizeof(hn_image_t));
+
+		if (ptr->image_data == NULL)
+			return 1;
+
+		for (int i = 0; i < ptr->image_length; i++) {
+			fread(&ptr->image_data[i].format, 4, 1, (*param)->fp_i);
+			fread(&ptr->image_data[i].address, 4, 1, (*param)->fp_i);
+			fread(&ptr->image_data[i].size, 4, 1, (*param)->fp_i);
+		}
+
+		for (int i = 0; i < ptr->image_length; i++) {
+			ptr->image_data[i].image = malloc(ptr->image_data[i].size);
+
+			if (ptr->image_data[i].image == NULL)
+				return 1;
+
+			fseek((*param)->fp_i, ptr->image_data[i].address, SEEK_SET);
+			fread(ptr->image_data[i].image,
+				ptr->image_data[i].size, 1,
+				(*param)->fp_i);
+
+			if ((*param)->stat > 1)
+				printf("\t%6d\t%4d\t%08x\t%8d\n",
+					i,
+					ptr->image_data[i].format,
+					ptr->image_data[i].address,
+					ptr->image_data[i].size);
+		}
+
+		ptr = ptr->next;
+	}
+
+	if ((*param)->stat > 1)
+		printf("Loaded %d page(s)\n", (*param)->file_stat->page);
+
+	if ((*param)->stat > 1)
+		printf("Creating PDF object(s)\n");
+
+	pdf_object_t *pdf = NULL;
+
+	if (pdf_obj_create(&pdf) != 0)
+		return 1;
+
+	if ((*param)->stat > 0)
+		printf("Conversion ended\n");
+
+	/* TODO: Finish me please :) */
+	return 1;
+}

src/cnki_nh.c

@@ -1,110 +0,0 @@
-/*
- * Copyright (c) 2020, yzrh <yzrh@noema.org>
- *
- * SPDX-License-Identifier: Apache-2.0
- */
-
-#include <stdlib.h>
-
-#include "cnki.h"
-
-int
-cnki_nh(cnki_t **param)
-{
-	if (*param == NULL)
-		return 1;
-
-	if ((*param)->stat > 0)
-		printf("Begin 'HN' conversion\n");
-
-	if ((*param)->file_stat->page > 0)
-		(*param)->object_nh = malloc(sizeof(object_nh_t));
-	else
-		return 1;
-
-	if ((*param)->object_nh == NULL)
-		return 1;
-
-	if ((*param)->stat > 1) {
-		printf("Loading page(s)\n");
-		printf("\t%8s\t%8s\t%13s\t%6s\t%4s\t%8s\t%8s\n",
-			"address",
-			"text",
-			"page",
-			"zero",
-			"code",
-			"address",
-			"image");
-	}
-
-	object_nh_t *ptr = (*param)->object_nh;
-	for (int i = 0; i < (*param)->file_stat->page; i++) {
-		fread(&ptr->address, 4, 1, (*param)->fp_i);
-		fread(&ptr->size, 4, 1, (*param)->fp_i);
-		fread(&ptr->page, 4, 1, (*param)->fp_i);
-		fread(&ptr->zero, 8, 1, (*param)->fp_i);
-
-		ptr->text = NULL;
-		ptr->image_format = -1;
-		ptr->image_address = 0;
-		ptr->image_size = 0;
-		ptr->image = NULL;
-		ptr->next = NULL;
-
-		if (i < (*param)->file_stat->page - 1) {
-			ptr->next = malloc(sizeof(object_nh_t));
-
-			if (ptr->next == NULL)
-				return 1;
-		}
-
-		ptr = ptr->next;
-	}
-
-	ptr = (*param)->object_nh;
-	while (ptr != NULL) {
-		ptr->text = malloc(ptr->size);
-
-		if (ptr->text == NULL)
-			return 1;
-
-		fseek((*param)->fp_i, ptr->address, SEEK_SET);
-		fread(ptr->text, ptr->size, 1, (*param)->fp_i);
-		fread(&ptr->image_format, 4, 1, (*param)->fp_i);
-		fread(&ptr->image_address, 4, 1, (*param)->fp_i);
-		fread(&ptr->image_size, 4, 1, (*param)->fp_i);
-
-		ptr->image = malloc(ptr->image_size);
-
-		if (ptr->image == NULL)
-			return 1;
-
-		fseek((*param)->fp_i, ptr->image_address, SEEK_SET);
-		fread(ptr->image, ptr->image_size, 1, (*param)->fp_i);
-
-		if ((*param)->stat > 1)
-			printf("\t%08x\t%8d\t{%d, %8d}\t{%d, %d}\t%4d\t%08x\t%8d\n",
-				ptr->address,
-				ptr->size,
-				ptr->page[0],
-				ptr->page[1],
-				ptr->zero[0],
-				ptr->zero[1],
-				ptr->image_format,
-				ptr->image_address,
-				ptr->image_size);
-
-		ptr = ptr->next;
-	}
-
-	if ((*param)->stat > 1)
-		printf("Loaded %d page(s)\n", (*param)->file_stat->page);
-
-	/* TODO: Study signed int __fastcall CAJDoc::OpenNHCAJFile(int a1, int a2) */
-
-	if ((*param)->stat > 0)
-		printf("Conversion ended\n");
-
-	/* TODO: Finish me please :) */
-	return 1;
-}

src/cnki_zlib.c

@@ -0,0 +1,7 @@
+/*
+ * Copyright (c) 2020, yzrh <yzrh@noema.org>
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zlib.h>

src/extern.h

@@ -14,8 +14,8 @@ int cnki_info(cnki_t **param);
 /* cnki_caj.c */
 int cnki_caj(cnki_t **param);
 
-/* cnki_nh.c */
+/* cnki_hn.c */
-int cnki_nh(cnki_t **param);
+int cnki_hn(cnki_t **param);
 
 /* cnki_kdh.c */
 int cnki_kdh(cnki_t **param);

src/melon.c

@@ -16,9 +16,6 @@
 int
 main(int argc, char **argv, char **envp)
 {
-	printf("Melon " VERSION "." RELEASE "." PATCH EXTRA "\n");
-	printf("Copyright (c) 2020, yzrh <yzrh@noema.org>\n\n");
-
 	cnki_t *param = NULL;
 
 	if (cnki_create(&param) != 0) {
@@ -83,6 +80,10 @@ main(int argc, char **argv, char **envp)
 			return EXIT_FAILURE;
 		}
 
+		if (param->stat > 0)
+			printf("Melon " VERSION "." RELEASE "." PATCH EXTRA "\n"
+				"Copyright (c) 2020, yzrh <yzrh@noema.org>\n\n");
+
 		cnki_info(&param);
 
 		if (strcmp(param->file_stat->type, "%PDF") == 0) {
@@ -98,7 +99,7 @@ main(int argc, char **argv, char **envp)
 				return EXIT_FAILURE;
 			}
 		} else if (strcmp(param->file_stat->type, "HN") == 0) {
-			if (cnki_nh(&param) != 0) {
+			if (cnki_hn(&param) != 0) {
 				fprintf(stderr, "%s: %s\n", argv[0],
 					strerror(errno));
 				return EXIT_FAILURE;