New block parser

1 files changed, 163 insertions, 0 deletions

diff --git a/src/replace-table.c b/src/replace-table.c
new file mode 100644
index 0000000..d3503c4
--- /dev/null
+++ b/src/replace-table.c
@@ -0,0 +1,163 @@
+/*   Cataract - Static web photo gallery generator
+ *   Copyright (C) 2009 Tomas Bzatek <tbzatek@users.sourceforge.net>
+ *
+ *   This program is free software; you can redistribute it and/or
+ *   modify it under the terms of the GNU General Public License
+ *   as published by the Free Software Foundation; either version 2
+ *   of the License, or any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include <glib.h>
+#include <glib/gprintf.h>
+
+#include "replace-table.h"
+#include "gallery-utils.h"
+
+
+
+
+ReplaceTable *
+replace_table_new ()
+{
+  return (ReplaceTable *) g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
+}
+
+void
+replace_table_free (ReplaceTable *table)
+{
+  g_return_if_fail (table != NULL);
+
+  g_hash_table_destroy (table);
+}
+
+
+/*
+ *   replace_table_add_key: add tag/value pair to replace
+ *
+ *      tag, value will be referenced inside
+ *
+ */
+void
+replace_table_add_key (ReplaceTable *table, const gchar *tag, const gchar *value)
+{
+  g_return_if_fail (table != NULL);
+
+  if (tag != NULL && value != NULL)
+    g_hash_table_replace (table, g_strdup (tag), g_strdup (value));
+}
+
+void
+replace_table_add_key_int (ReplaceTable *table, const gchar *tag, gint value)
+{
+  g_return_if_fail (table != NULL);
+
+  if (tag != NULL)
+    g_hash_table_replace (table, g_strdup (tag), g_strdup_printf ("%d", value));
+}
+
+void
+replace_table_add_key_printf (ReplaceTable *table, const gchar *tag, const gchar *format, ...)
+{
+  va_list args;
+  gchar *s = NULL;
+
+  g_return_if_fail (table != NULL);
+
+  if (tag != NULL && format != NULL) {
+    va_start (args, format);
+    g_vasprintf (&s, format, args);
+    g_hash_table_replace (table, g_strdup (tag), s);
+    va_end (args);
+  }
+}
+
+
+
+static void
+replace_table_process_value (gpointer key, gpointer value, gpointer user_data)
+{
+  gchar **buffer = user_data;
+  gchar *tag;
+  gchar *tag_value;
+
+  g_return_if_fail (key != NULL);
+  g_return_if_fail (value != NULL);
+  g_return_if_fail (user_data != NULL);
+
+  /*  replace <!-- $(xxx) --> tags  */
+  tag = g_strdup_printf ("<!-- $(%s) -->", (gchar *) key);
+  tag_value = g_strdup ((gchar *) value);
+  adjust_tags_normal (&tag_value);
+  while (strstr (*buffer, tag)) {
+    str_replace (buffer, tag, tag_value);
+  }
+  g_free (tag_value);
+  g_free (tag);
+
+  /*  replace $(xxx) tags  */
+  tag = g_strdup_printf ("$(%s)", (gchar *) key);
+  tag_value = g_strdup ((gchar *) value);
+  adjust_tags_parameter (&tag_value);
+  while (strstr (*buffer, tag)) {
+    str_replace (buffer, tag, tag_value);
+  }
+  g_free (tag_value);
+  g_free (tag);
+}
+
+/*
+ *   replace_table_process: process buffer and replace all tags filled in the replace table
+ *
+ *      - reallocates source buffer
+ *
+ */
+void
+replace_table_process (gchar **buffer, ReplaceTable *table)
+{
+  g_return_if_fail (table != NULL);
+
+  g_hash_table_foreach (table, replace_table_process_value, buffer);
+
+/*
+  gchar *val = g_hash_table_lookup (table, "TAG");
+  g_print ("replace_table_process: val = '%s'\n", val);
+*/
+}
+
+
+/*
+ *   adjust_tags_normal:    adjust string for normal HTML use
+ *   adjust_tags_parameter: adjust string for use as tag parameter value
+ *        - both funtions return newly allocated string
+ */
+void
+adjust_tags_normal (char **str)
+{
+  fix_entities (str);
+}
+
+void
+adjust_tags_parameter (char **str)
+{
+  /*  TODO: replace line endings with single space?  */
+  remove_tags (str, "<!--", "-->");       /*  comments  */
+  remove_tags (str, "<", ">");            /*  tags      */
+  fix_entities (str);                     /*  entities  */
+  str_replace (str, "\"", "&quot;");      /*  "         */
+  str_replace (str, "'", "&apos;");       /*  '         */
+}