New block parser

1 files changed, 80 insertions, 188 deletions

diff --git a/src/generators.c b/src/generators.c
index 59de1f4..ff88a73 100644
--- a/src/generators.c
+++ b/src/generators.c
@@ -30,7 +30,8 @@
 #include "items.h"
 #include "jpeg-utils.h"
 #include "gallery-utils.h"
-#include "generators-replace-table.h"
+#include "replace-table.h"
+#include "block-parser.h"
 
 
 /*
@@ -162,10 +163,8 @@ generate_image (TGallerySetup *setup,
       }
     }
   }
-  if (img_src_full)
-    g_free (img_src_full);
-  if (thumb_src_full)
-    g_free (thumb_src_full);
+  g_free (img_src_full);
+  g_free (thumb_src_full);
 }
 
 
@@ -184,20 +183,10 @@ write_html_album (TGallerySetup *setup,
                   const char *dst,
                   TAlbum *items)
 {
-  #define BUFFER_SIZE 65536
   FILE *fin;
   FILE *fout;
-  char *buffer;
-  char *buf_img_list_landscape;
-  char *buf_img_list_portrait;
-  char *buf_img_separator;
-  char *buf_go_up_string;
-  gboolean in_img_list;
-  gboolean in_img_list_landscape;
-  gboolean in_img_list_portrait;
-  gboolean in_img_separator;
-  gboolean in_go_up_string;
-  char *b;
+  char *line;
+  char *block;
   char *s1, *s2, *s3, *s4, *s5;
   TAlbum *parent;
   TIndexItem *item;
@@ -208,6 +197,7 @@ write_html_album (TGallerySetup *setup,
   unsigned int real_total_items;
   ReplaceTable *global_replace_table;
   ReplaceTable *local_replace_table;
+  BlockParser *block_parser;
 
 
   fin = fopen (template_src, "r");
@@ -222,19 +212,10 @@ write_html_album (TGallerySetup *setup,
     return FALSE;
   }
 
-  buffer = malloc (BUFFER_SIZE);
-  buf_img_list_landscape = malloc (BUFFER_SIZE);
-  buf_img_list_portrait = malloc (BUFFER_SIZE);
-  buf_img_separator = malloc (BUFFER_SIZE);
-  buf_go_up_string = malloc (BUFFER_SIZE);
-  in_img_list = FALSE;
-  in_img_list_landscape = FALSE;
-  in_img_list_portrait = FALSE;
-  in_img_separator = FALSE;
-  in_go_up_string = FALSE;
   res = TRUE;
 
   global_replace_table = replace_table_new ();
+  block_parser = block_parser_new ();
 
   /*  Get number of real pictures in the list  */
   real_total_items = 0;
@@ -344,81 +325,32 @@ write_html_album (TGallerySetup *setup,
   g_free (s1);
 
 
+  /*  Setup block parser  */
+  block_parser_register_key (block_parser, "IMG_LIST", "IMG_LIST");
+  block_parser_register_key (block_parser, "IMG_LIST_LANDSCAPE", NULL);
+  block_parser_register_key (block_parser, "IMG_LIST_PORTRAIT", NULL);
+  block_parser_register_key (block_parser, "LIST_SEPARATOR", NULL);
+  block_parser_register_key (block_parser, "GO_UP", "GO_UP");
+
+
   /*   Read through the template and replace placeholders with real data  */
-  while (! feof (fin))
-  {
-    memset (buffer, 0, BUFFER_SIZE);
-    if (! fgets (buffer, BUFFER_SIZE, fin))
-    	break;
-
-    /*  Block placeholders  */
-    if (in_img_list && (strstr (buffer, "<!-- $(BEGIN_IMG_LIST_LANDSCAPE) -->"))) {
-      in_img_list_landscape = TRUE;
-      continue;
-    }
-    if (in_img_list && (strstr (buffer, "<!-- $(END_IMG_LIST_LANDSCAPE) -->"))) {
-      in_img_list_landscape = FALSE;
-      continue;
-    }
-    if (in_img_list && (strstr (buffer, "<!-- $(BEGIN_IMG_LIST_PORTRAIT) -->"))) {
-      in_img_list_portrait = TRUE;
-      continue;
-    }
-    if (in_img_list && (strstr (buffer, "<!-- $(END_IMG_LIST_PORTRAIT) -->"))) {
-      in_img_list_portrait = FALSE;
-      continue;
-    }
-    if (in_img_list && (strstr (buffer, "<!-- $(BEGIN_LIST_SEPARATOR) -->"))) {
-      in_img_separator = TRUE;
-      continue;
-    }
-    if (in_img_list && (strstr (buffer, "<!-- $(END_LIST_SEPARATOR) -->"))) {
-      in_img_separator = FALSE;
-      continue;
-    }
-    if (in_img_list && in_img_list_landscape) {
-     buf_img_list_landscape = strncat (buf_img_list_landscape, buffer, BUFFER_SIZE - strlen (buf_img_list_landscape) - 2);
-     continue;
-    }
-    if (in_img_list && in_img_list_portrait) {
-     buf_img_list_portrait = strncat (buf_img_list_portrait, buffer, BUFFER_SIZE - strlen (buf_img_list_portrait) - 2);
-     continue;
-    }
-    if (in_img_list && in_img_separator) {
-     buf_img_separator = strncat (buf_img_separator, buffer, BUFFER_SIZE - strlen (buf_img_separator) - 2);
-     continue;
-    }
+  while (! feof (fin)) {
+    line = block_parser_read_and_parse (block_parser, fin);
+    if (line == NULL)
+      break;
 
-    if (strstr (buffer, "<!-- $(BEGIN_GO_UP) -->")) {
-      memset (buf_go_up_string, 0, BUFFER_SIZE);
-      in_go_up_string = TRUE;
-      continue;
-    }
-    if (in_go_up_string && strstr (buffer, "<!-- $(END_GO_UP) -->")) {
-      in_go_up_string = FALSE;
-      if (! items->parent_index || ! setup->show_go_up)
-        continue;
-    }
-    if (in_go_up_string) {
-      buf_go_up_string = strncat (buf_go_up_string, buffer, BUFFER_SIZE - strlen (buf_go_up_string) - 2);
-      continue;
+    /*  Blocks  */
+    if (block_parser_has_unused_data (block_parser, "GO_UP")) {
+      block = block_parser_get_data (block_parser, "GO_UP");
+      if (block) {
+        replace_table_process (&block, global_replace_table);
+        replace_table_add_key (global_replace_table, "GO_UP", items->parent_index && setup->show_go_up ? block : "");
+      }
+      g_free (block);
     }
 
-    /*  Image list, nested placeholders  */
-    if (strstr (buffer, "<!-- $(BEGIN_IMG_LIST) -->")) {
-      memset (buf_img_list_landscape, 0, BUFFER_SIZE);
-      memset (buf_img_list_portrait, 0, BUFFER_SIZE);
-      memset (buf_img_separator, 0, BUFFER_SIZE);
-      in_img_list = TRUE;
-      in_img_list_landscape = FALSE;
-      in_img_list_portrait = FALSE;
-      in_img_separator = FALSE;
-      continue;
-    }
-    if (in_img_list && (strstr (buffer, "<!-- $(END_IMG_LIST) -->"))) {
-      in_img_list = FALSE;
-      in_img_list_landscape = FALSE;
-      in_img_list_portrait = FALSE;
+    if (block_parser_has_unused_data (block_parser, "IMG_LIST")) {
+      block = g_strdup ("");
 
       /*  Now we have all block placeholders read, generate the items:  */
       for (i = 0; i < items->items->len; i++)
@@ -429,7 +361,7 @@ write_html_album (TGallerySetup *setup,
           continue;
         }
 
-        /*  Generate the images (preview, original, thumbnail)  */
+        /*  Generate images (preview, original, thumbnail)  */
         local_replace_table = replace_table_new ();
         s1 = NULL;
 
@@ -437,8 +369,7 @@ write_html_album (TGallerySetup *setup,
           case INDEX_ITEM_TYPE_PICTURE:
             /*  Skip HTML code generation if it's a hidden item  */
             if (! item->hidden) {
-              s1 = strdup (item->gen_portrait ? buf_img_list_portrait : buf_img_list_landscape);
-
+              s1 = block_parser_get_data (block_parser, item->gen_portrait ? "IMG_LIST_PORTRAIT" : "IMG_LIST_LANDSCAPE");
               replace_table_add_key_printf (local_replace_table, "ALBUM_SUBPATH", "%s/%s", item->path, setup->index_file_name);
               replace_table_add_key_printf (local_replace_table, "IMG_SUBPAGE", "%s%s", item->gen_img_src, GET_EXT (setup->index_file_name));
               replace_table_add_key (local_replace_table, "IMG_TITLE", item->title);
@@ -456,39 +387,31 @@ write_html_album (TGallerySetup *setup,
             break;
 
           case INDEX_ITEM_TYPE_SEPARATOR:
-            s1 = strdup (buf_img_separator);
+            s1 = block_parser_get_data (block_parser, "LIST_SEPARATOR");
             replace_table_add_key (local_replace_table, "LIST_SEPARATOR_TITLE", item->title);
             break;
         }
 
-        bb = TRUE;
         if (s1) {
           replace_table_process (&s1, local_replace_table);
-          bb = fputs (s1, fout);
-          free (s1);
+          s2 = g_strdup_printf ("%s%s", block, s1);
+          g_free (block);
+          block = s2;
+          g_free (s1);
         }
         replace_table_free (local_replace_table);
-        if (! bb) {
-          fprintf (stderr, "write_html_index: error writing to file \"%s\": %s\n", dst, strerror (errno));
-          res = FALSE;
-          break;
-        }
       }
-      continue;  /*  no need to write anything  */
+      replace_table_process (&block, global_replace_table);
+      replace_table_add_key (global_replace_table, "IMG_LIST", block);
+      g_free (block);
     }
 
-    /*  Select apropriate line buffer  */
-    if (strstr (buffer, "<!-- $(END_GO_UP) -->") && items->parent_index && setup->show_go_up) {
-      b = strdup (buf_go_up_string);
-    } else
-    b = strdup (buffer);
-
     /*  Replace all known tags  */
-    replace_table_process (&b, global_replace_table);
+    replace_table_process (&line, global_replace_table);
 
     /*  Write to file  */
-    bb = fputs (b, fout);
-    free (b);
+    bb = fputs (line, fout);
+    g_free (line);
     if (! bb) {
       fprintf (stderr, "write_html_index: error writing to file \"%s\": %s\n", dst, strerror (errno));
       res = FALSE;
@@ -499,11 +422,7 @@ write_html_album (TGallerySetup *setup,
   fclose (fout);
   fclose (fin);
   replace_table_free (global_replace_table);
-  free (buffer);
-  free (buf_img_list_landscape);
-  free (buf_img_list_portrait);
-  free (buf_img_separator);
-  free (buf_go_up_string);
+  block_parser_free (block_parser);
   return res;
 }
 
@@ -526,16 +445,10 @@ write_html_image (TGallerySetup *setup,
                   TIndexItem *item,
                   TAlbum *parent_items)
 {
-  #define BUFFER_SIZE 65536
   FILE *fin;
   FILE *fout;
-  char *buffer;
   char *big_dst;
   char *orig_dst;
-  char *buf_img_fullsize_link;
-  char *buf_exif_table;
-  gboolean in_img_fullsize_link;
-  gboolean in_exif_table;
   TExifData *exif;
   unsigned long img_big_w, img_big_h, img_orig_w, img_orig_h;
   unsigned int item_index, real_item_index, real_total_items;
@@ -544,15 +457,17 @@ write_html_image (TGallerySetup *setup,
   TIndexItem *tmp_item;
   TAlbum *parent;
   int i;
+  char *line;
+  char *block;
   char *s1, *s2, *s3, *s4, *s5;
   char *imgname, *preload_imgname;
   char *title, *title_desc;
-  char *b;
   gboolean res, bb;
   int level, old_parent_item_index;
   gboolean override_title_meta;
   gboolean image_fullsize;
   ReplaceTable *replace_table;
+  BlockParser *block_parser;
 
 
   fin = fopen (template_src, "r");
@@ -567,10 +482,10 @@ write_html_image (TGallerySetup *setup,
     return FALSE;
   }
 
-  buffer = malloc (BUFFER_SIZE);
   preload_imgname = NULL;
 
   replace_table = replace_table_new ();
+  block_parser = block_parser_new ();
 
   /*  Get our index in the album  */
   item_index = 0;
@@ -609,12 +524,6 @@ write_html_image (TGallerySetup *setup,
   big_dst = g_strconcat (s1, "/", IMG_BIG_DIR, "/", imgname, NULL);
   orig_dst = g_strconcat (s1, "/", IMG_ORIG_DIR, "/", imgname, NULL);
   g_free (s1);
-  buf_img_fullsize_link = malloc (BUFFER_SIZE);
-  memset (buf_img_fullsize_link, 0, BUFFER_SIZE);
-  in_img_fullsize_link = FALSE;
-  buf_exif_table = malloc (BUFFER_SIZE);
-  memset (buf_exif_table, 0, BUFFER_SIZE);
-  in_exif_table = FALSE;
   res = TRUE;
 
   /*  Get EXIF data from the original image  */
@@ -671,9 +580,9 @@ write_html_image (TGallerySetup *setup,
   s3 = setup->site_title ? g_strdup_printf(" | %s", setup->site_title) : NULL;
   s4 = g_strconcat (s1 ? s1 : "", s2, s3 ? s3 : "", NULL);
   replace_table_add_key (replace_table, "PAGE_TITLE", s4);
-  if (s1)  g_free (s1);
-  if (s2)  g_free (s2);
-  if (s3)  g_free (s3);
+  g_free (s1);
+  g_free (s2);
+  g_free (s3);
   g_free (s4);
 
   /*  Simple placeholders  */
@@ -801,55 +710,41 @@ write_html_image (TGallerySetup *setup,
   g_free (s1);
 
 
+  /*  Setup block parser  */
+  block_parser_register_key (block_parser, "IMG_FULLSIZE_LINK", "IMG_FULLSIZE_LINK");
+  block_parser_register_key (block_parser, "EXIF_TABLE", "EXIF_TABLE");
+
+
   /*   Read through the template and replace placeholders with real data  */
   while (! feof (fin)) {
-    memset (buffer, 0, BUFFER_SIZE);
-    if (! fgets (buffer, BUFFER_SIZE, fin))
+    line = block_parser_read_and_parse (block_parser, fin);
+    if (line == NULL)
       break;
 
-    /*  Block placeholders  */
-    if (strstr (buffer, "<!-- $(BEGIN_IMG_FULLSIZE_LINK) -->")) {
-      in_img_fullsize_link = TRUE;
-      continue;
-    }
-    if (strstr (buffer, "<!-- $(END_IMG_FULLSIZE_LINK) -->")) {
-      in_img_fullsize_link = FALSE;
-      if (! image_fullsize)   /*  write down the block later in this cycle  */
-        continue;
-    }
-    if (strstr (buffer, "<!-- $(BEGIN_EXIF_TABLE) -->")) {
-      in_exif_table = TRUE;
-      continue;
-    }
-    if (strstr (buffer, "<!-- $(END_EXIF_TABLE) -->")) {
-      in_exif_table = FALSE;
-      if (! setup->show_exif_table)
-        continue;
-    }
-    if (in_img_fullsize_link) {
-      buf_img_fullsize_link = strncat (buf_img_fullsize_link, buffer, BUFFER_SIZE - strlen (buf_img_fullsize_link) - 2);
-      continue;
+    /*  Blocks  */
+    if (block_parser_has_unused_data (block_parser, "IMG_FULLSIZE_LINK")) {
+      block = block_parser_get_data (block_parser, "IMG_FULLSIZE_LINK");
+      if (block) {
+        replace_table_process (&block, replace_table);
+        replace_table_add_key (replace_table, "IMG_FULLSIZE_LINK", image_fullsize ? block : "");
+      }
+      g_free (block);
     }
-    if (in_exif_table) {
-      buf_exif_table = strncat (buf_exif_table, buffer, BUFFER_SIZE - strlen (buf_exif_table) - 2);
-      continue;
+    if (block_parser_has_unused_data (block_parser, "EXIF_TABLE")) {
+      block = block_parser_get_data (block_parser, "EXIF_TABLE");
+      if (block) {
+        replace_table_process (&block, replace_table);
+        replace_table_add_key (replace_table, "EXIF_TABLE", setup->show_exif_table ? block : "");
+      }
+      g_free (block);
     }
 
-    /*  Select apropriate line buffer  */
-    if (strstr (buffer, "<!-- $(END_IMG_FULLSIZE_LINK) -->") && image_fullsize) {
-      b = strdup (buf_img_fullsize_link);
-    } else
-    if (strstr (buffer, "<!-- $(END_EXIF_TABLE) -->") && setup->show_exif_table) {
-      b = strdup (buf_exif_table);
-    } else
-    b = strdup (buffer);
-
     /*  Replace all known tags  */
-    replace_table_process (&b, replace_table);
+    replace_table_process (&line, replace_table);
 
     /*  Write to file  */
-    bb = fputs (b, fout);
-    free (b);
+    bb = fputs (line, fout);
+    g_free (line);
     if (! bb) {
       fprintf (stderr, "write_html_image: error writing to file \"%s\": %s\n", dst, strerror (errno));
       res = FALSE;
@@ -859,18 +754,15 @@ write_html_image (TGallerySetup *setup,
 
   fclose (fout);
   fclose (fin);
-  if (title)  g_free (title);
-  if (title_desc)  g_free (title_desc);
-  free (buffer);
+  g_free (title);
+  g_free (title_desc);
   free (big_dst);
   free (orig_dst);
-  free (buf_img_fullsize_link);
-  free (buf_exif_table);
   g_free (imgname);
-  if (preload_imgname)
-    g_free (preload_imgname);
+  g_free (preload_imgname);
   free_exif_data (exif);
   replace_table_free (replace_table);
+  block_parser_free (block_parser);
   return res;
 }