Added file header parsing

src/mainwindow.c

@@ -1,109 +1,6 @@
 #include "mainwindow.h"
 #include "mdiary.h"
 
-/**
- * @brief The dateFormats struct contains regex/date-info pairs to parse different date formats.
- */
-struct dateFormats {
-	gchar *regex;
-	guint index_count;
-	guint index_year;
-	guint index_month;
-	guint index_day;
-	guint index_hour;
-	guint index_minute;
-} dateFormats_list[] = {
-{
-	.regex        = "(\\d{1,4})-(\\d{1,2})-(\\d{1,2})\\s*(\\d{1,2}):(\\d{1,2}).*",
-	.index_count  = 5,
-	.index_year   = 1,
-	.index_month  = 2,
-	.index_day    = 3,
-	.index_hour   = 4,
-	.index_minute = 5
-},
-{
-	.regex        = "(\\d{1,2})\\.(\\d{1,2})\\.(\\d{1,4})\\s*(\\d{1,2}):(\\d{1,2}).*",
-	.index_count  = 5,
-	.index_year   = 3,
-	.index_month  = 2,
-	.index_day    = 1,
-	.index_hour   = 4,
-	.index_minute = 5
-},
-{
-	.regex = "(\\d{1,4})-(\\d{1,2})-(\\d{1,2}).*",
-	.index_count  = 3,
-	.index_year   = 1,
-	.index_month  = 2,
-	.index_day    = 3,
-},
-{
-	.regex = "(\\d{1,2})\\.(\\d{1,2})\\.(\\d{1,4}).*",
-	.index_count  = 3,
-	.index_year   = 3,
-	.index_month  = 2,
-	.index_day    = 1,
-},
-{
-	.regex = NULL
-}
-};
-
-/**
- * @brief mainWindow_get_date_from_string tries to guess the date format used and converts it to GDateTime.
- * @param Input string.
- * @return A GDateTime object or NULL on error. You need to free it after use.
- */
-static GDateTime *mainWindow_get_date_from_string(gchar *string)
-{
-	GRegex *regex;
-	GMatchInfo *match_info;
-	GRegexError *regex_error;
-	struct dateFormats *dateFormats;
-	GDateTime *datetime = NULL;
-	guint year   = 0;
-	guint month  = 0;
-	guint day    = 0;
-	guint hour   = 0;
-	guint minute = 0;
-
-	dateFormats = dateFormats_list;
-	do {
-		regex = g_regex_new(dateFormats->regex, G_REGEX_RAW, 0, NULL);
-		if (g_regex_match(regex, string, 0, &match_info)
-				&& g_regex_get_capture_count(regex) >= dateFormats->index_count &&
-				g_match_info_matches(match_info)) {
-			if (dateFormats->index_year)
-				year   = atoi(g_match_info_fetch(match_info, dateFormats->index_year));
-			if (dateFormats->index_month)
-				month  = atoi(g_match_info_fetch(match_info, dateFormats->index_month));
-			if (dateFormats->index_day)
-				day    = atoi(g_match_info_fetch(match_info, dateFormats->index_day));
-			if (dateFormats->index_hour)
-				hour   = atoi(g_match_info_fetch(match_info, dateFormats->index_hour));
-			if (dateFormats->index_minute)
-				minute = atoi(g_match_info_fetch(match_info, dateFormats->index_minute));
-
-			if (year >= 0 &&
-					month >=1 && month <=12 &&
-					day >= 1 && day <= 31 &&
-					hour >= 0 && hour <= 23 &&
-					minute >= 0 && minute <= 59) {
-				datetime = g_date_time_new_local(year, month, day, hour, minute, 0);
-				g_regex_unref(regex);
-				break;
-			}
-		}
-		g_regex_unref(regex);
-	} while ((++dateFormats)->regex);
-
-	if (!datetime)
-		g_print("Warning! Could not match date in \"%s\"!\n", string);
-
-	return datetime;
-}
-
 /**
  * @brief mainWindow_list_entry_visible checks whether the entry should be displayed.
  * @param model N/A
@@ -255,28 +152,6 @@ static void mainWindow_configure_treeView(struct mainWindow *mainWindow)
 	gtk_tree_view_column_set_sort_column_id(col, COL_TAGS_TEXT);
 
 	gtk_tree_sortable_set_sort_column_id(sortable, COL_DATE_TEXT, GTK_SORT_DESCENDING);
-
-	/*
-	 * Test entries for debugging only
-	 */
-	GDateTime *dt;
-	GList *list = NULL;
-
-	list = g_list_append(list, "Tag0");
-	list = g_list_append(list, "Tag1");
-	list = g_list_append(list, "Tag2");
-
-	dt = g_date_time_new_local(2017, 11, 21, 02, 03, 0);
-	mdiary_add_entry_to_store(mainWindow->entryListStore, "Title", dt, list, "Text text text");
-	g_date_time_unref(dt);
-
-	dt = g_date_time_new_local(2017, 2, 3, 6, 7, 1);
-	mdiary_add_entry_to_store(mainWindow->entryListStore, "AAA 2", dt, list, "fdfd Text text text");
-	g_date_time_unref(dt);
-
-	dt = g_date_time_new_local(2016, 4, 18, 13, 44, 2);
-	mdiary_add_entry_to_store(mainWindow->entryListStore, "Yey entries 3", dt, list, "The content is content.");
-	g_date_time_unref(dt);
 }
 
 /**
@@ -491,7 +366,7 @@ void mainWindow_filterChanged(GtkWidget *widget, gpointer user_data)
 	struct mainWindow *mainWindow = (struct mainWindow *)user_data;
 
 	if (!widget || widget == mainWindow->dateStart) {
-		datetime = mainWindow_get_date_from_string((gchar *)gtk_entry_get_text(
+		datetime = mdiary_get_date_from_string((gchar *)gtk_entry_get_text(
 							       GTK_ENTRY(mainWindow->dateStart)));
 		if (datetime) {
 			mainWindow->filterSettings.time_start = g_date_time_to_unix(datetime);
@@ -499,7 +374,7 @@ void mainWindow_filterChanged(GtkWidget *widget, gpointer user_data)
 		}
 	}
 	if (!widget || widget == mainWindow->dateEnd) {
-		datetime = mainWindow_get_date_from_string((gchar *)gtk_entry_get_text(
+		datetime = mdiary_get_date_from_string((gchar *)gtk_entry_get_text(
 							       GTK_ENTRY(mainWindow->dateEnd)));
 		if (datetime) {
 			mainWindow->filterSettings.time_end = g_date_time_to_unix(datetime);
@@ -528,7 +403,7 @@ void mainWindow_checkDate(GtkWidget *widget, gint event, gpointer user_data)
 	struct mainWindow *mainWindow = (struct mainWindow *)user_data;
 	GDateTime *datetime;
 
-	datetime = mainWindow_get_date_from_string((char *)gtk_entry_get_text(GTK_ENTRY(widget)));
+	datetime = mdiary_get_date_from_string((char *)gtk_entry_get_text(GTK_ENTRY(widget)));
 	if (!datetime) {
 		datetime = g_date_time_new_from_unix_local(widget == mainWindow->dateStart
 							   ? mainWindow->filterSettings.time_start

src/mdiary.c

@@ -1,8 +1,251 @@
 #include "mdiary.h"
 
+/**
+ * @brief The dateFormats struct contains regex/date-info pairs to parse different date formats.
+ */
+struct dateFormats {
+	gchar *regex;
+	guint index_count;
+	guint index_year;
+	guint index_month;
+	guint index_day;
+	guint index_hour;
+	guint index_minute;
+} dateFormats_list[] = {
+{
+	.regex        = "(\\d{1,4})-(\\d{1,2})-(\\d{1,2})\\s*(\\d{1,2}):(\\d{1,2}).*",
+	.index_count  = 5,
+	.index_year   = 1,
+	.index_month  = 2,
+	.index_day    = 3,
+	.index_hour   = 4,
+	.index_minute = 5
+},
+{
+	.regex        = "(\\d{1,2})\\.(\\d{1,2})\\.(\\d{1,4})\\s*(\\d{1,2}):(\\d{1,2}).*",
+	.index_count  = 5,
+	.index_year   = 3,
+	.index_month  = 2,
+	.index_day    = 1,
+	.index_hour   = 4,
+	.index_minute = 5
+},
+{
+	.regex = "(\\d{1,4})-(\\d{1,2})-(\\d{1,2}).*",
+	.index_count  = 3,
+	.index_year   = 1,
+	.index_month  = 2,
+	.index_day    = 3,
+},
+{
+	.regex = "(\\d{1,2})\\.(\\d{1,2})\\.(\\d{1,4}).*",
+	.index_count  = 3,
+	.index_year   = 3,
+	.index_month  = 2,
+	.index_day    = 1,
+},
+{
+	.regex = NULL
+}
+};
+
+/**
+ * @brief mdiary_get_date_from_string tries to guess the date format used and converts it to GDateTime.
+ * @param Input string.
+ * @return A GDateTime object or NULL on error. You need to free it after use.
+ */
+GDateTime *mdiary_get_date_from_string(gchar *string)
+{
+	return mdiary_get_date_from_string_ext(string, "", "");
+}
+
+/**
+ * @brief mdiary_get_date_from_string_ext tries to guess the date format used and converts it to GDateTime.
+ * @param Input string.
+ * @return A GDateTime object or NULL on error. You need to free it after use.
+ */
+GDateTime *mdiary_get_date_from_string_ext(gchar *string, gchar *prefix, gchar *suffix)
+{
+	GRegex *regex;
+	GMatchInfo *match_info;
+	struct dateFormats *dateFormats;
+	GDateTime *datetime = NULL;
+	guint year   = 0;
+	guint month  = 0;
+	guint day    = 0;
+	guint hour   = 0;
+	guint minute = 0;
+	gchar *regex_string;
+
+	dateFormats = dateFormats_list;
+	do {
+		regex_string = g_strdup_printf("%s%s%s", prefix, dateFormats->regex, suffix);
+		regex = g_regex_new(regex_string, G_REGEX_RAW, 0, NULL);
+		if (g_regex_match(regex, string, 0, &match_info)
+				&& g_regex_get_capture_count(regex) >= dateFormats->index_count &&
+				g_match_info_matches(match_info)) {
+			if (dateFormats->index_year)
+				year   = atoi(g_match_info_fetch(match_info, dateFormats->index_year));
+			if (dateFormats->index_month)
+				month  = atoi(g_match_info_fetch(match_info, dateFormats->index_month));
+			if (dateFormats->index_day)
+				day    = atoi(g_match_info_fetch(match_info, dateFormats->index_day));
+			if (dateFormats->index_hour)
+				hour   = atoi(g_match_info_fetch(match_info, dateFormats->index_hour));
+			if (dateFormats->index_minute)
+				minute = atoi(g_match_info_fetch(match_info, dateFormats->index_minute));
+
+			if (year >= 0 &&
+					month >=1 && month <=12 &&
+					day >= 1 && day <= 31 &&
+					hour >= 0 && hour <= 23 &&
+					minute >= 0 && minute <= 59) {
+				datetime = g_date_time_new_local(year, month, day, hour, minute, 0);
+				g_regex_unref(regex);
+				g_free(regex_string);
+				break;
+			}
+		}
+		g_free(regex_string);
+		g_regex_unref(regex);
+	} while ((++dateFormats)->regex);
+
+	return datetime;
+}
+
+static gchar *mdiary_get_title_from_string(gchar *string)
+{
+	GRegex *regex;
+	GMatchInfo *match_info;
+	gchar *ret = NULL;
+
+	regex = g_regex_new("\\# (.*)", G_REGEX_RAW, 0, NULL);
+	if (g_regex_match(regex, string, 0, &match_info) &&
+			g_regex_get_capture_count(regex) > 0 &&
+			g_match_info_matches(match_info)) {
+		ret = g_strdup(g_match_info_fetch(match_info, 1));
+	}
+
+	g_regex_unref(regex);
+
+	return ret;
+}
+
+static GList *mdiary_add_tags_from_string(gchar *string)
+{
+	GRegex *regex;
+	GMatchInfo *match_info;
+	GList *ret = NULL;
+	gchar *ptr;
+	gchar *beg_ptr;
+	gchar *orig_ptr;
+	gboolean collected = 0;
+	gchar bak;
+
+	g_print("\n\nREGEX on %s\n", string);
+	regex = g_regex_new("^\\s*Tags: (.*)", G_REGEX_RAW, 0, NULL);
+	if (g_regex_match(regex, string, 0, &match_info) &&
+			g_regex_get_capture_count(regex) > 0 &&
+			g_match_info_matches(match_info)) {
+		g_print("T: Matched %d\n", g_regex_get_capture_count(regex));
+		/**
+		 * TODO: This function should be rewritten to fully use GRegex...
+		 */
+		ptr = beg_ptr = orig_ptr = g_strdup(g_match_info_fetch(match_info, 1));
+		do {
+			if (*ptr == ',' || *ptr == ' ' || *ptr == '\0') {
+				bak = *ptr;
+				if (collected) {
+					collected = 0;
+					*ptr = '\0';
+					ret = g_list_append(ret, g_strdup(beg_ptr));
+					beg_ptr = ptr + 1;
+					*ptr = bak;
+				} else {
+					beg_ptr = ptr + 1;
+				}
+			} else {
+				collected = 1;
+			}
+		} while (*(ptr++));
+		g_free(orig_ptr);
+	}
+
+	g_regex_unref(regex);
+
+	return ret;
+}
+
 static void mdiary_add_file_to_store(gchar *filename, GtkListStore *entryListStore)
 {
+	GFile *file;
+	GError *err = NULL;
+	GFileInputStream *stream;
+	GDataInputStream *dstream;
+	gchar *line;
+
+	GDateTime *datetime = NULL;
+	gchar *title   = NULL;
+	GList *tagList = NULL;
+	gchar *text    = NULL;
+	gboolean in_header = 1;
+
 	g_print("Add file: %s\n", filename);
+
+	file = g_file_new_for_path(filename);
+	stream = g_file_read(file, NULL, &err);
+	if (err != NULL) {
+		g_error("Could not open %s for reading: %s\n", filename, err->message);
+		g_error_free(err);
+		return;
+	}
+	dstream = g_data_input_stream_new(G_INPUT_STREAM(stream));
+
+	while (line = g_data_input_stream_read_line(G_DATA_INPUT_STREAM(dstream), NULL, NULL, NULL)) {
+		if (in_header) {
+			if (!datetime) {
+				datetime = mdiary_get_date_from_string_ext(line, "Date: .*", "");
+				if (datetime)
+					continue;
+			}
+			if (!title) {
+				title = mdiary_get_title_from_string(line);
+				if (title)
+					continue;
+			}
+			if (!tagList) {
+				tagList = mdiary_add_tags_from_string(line);
+				if (tagList)
+					continue;
+			}
+		}
+	}
+
+	if (!tagList) {
+		tagList = g_list_append(tagList, "untagged");
+		tagList = g_list_append(tagList, "untagged");
+	}
+	if (!datetime) {
+		g_error("Could not detect date in file!\n");
+		datetime = g_date_time_new_from_unix_local(0);
+	}
+	if (!text)
+		text = g_strdup("No content found.");
+	if (!title)
+		title = g_strdup("Untitled");
+
+	mdiary_add_entry_to_store(entryListStore,
+				  title,
+				  datetime,
+				  tagList,
+				  text);
+
+	g_input_stream_close(G_INPUT_STREAM(dstream), NULL, NULL);
+	g_input_stream_close(G_INPUT_STREAM(stream), NULL, NULL);
+	g_free(text);
+	g_free(title);
+	g_date_time_unref(datetime);
+	g_object_unref(file);
 }
 
 static void mdiary_recurse_and_collect(gchar *base_dir, GtkListStore *entryListStore, guint max_level)
@@ -98,7 +341,7 @@ void mdiary_add_entry_to_store(GtkListStore *entryListStore,
 			   COL_DATE_TEXT, date_text,
 			   COL_TAGS_TEXT, taglistString,
 			   COL_TIMESTAMP, datetime_copy,
-			   COL_TAGLIST, NULL,
+			   COL_TAGLIST, NULL, /* TODO: !!!! */
 			   COL_TEXT, g_strdup(text),
 			   -1);
 	g_free(date_text);

src/mdiary.h

@@ -3,6 +3,7 @@
 
 #include <glib.h>
 #include <gtk/gtk.h>
+#include <stdlib.h>
 
 enum {
 	COL_TITLE = 0,  /* Title of the entry */
@@ -21,4 +22,7 @@ void mdiary_add_entry_to_store(GtkListStore *entryListStore,
 			       GDateTime *datetime,
 			       GList *tags,
 			       gchar *text);
+GDateTime *mdiary_get_date_from_string_ext(gchar *string, gchar *prefix, gchar *suffix);
+GDateTime *mdiary_get_date_from_string(gchar *string);
+
 #endif /* MDIARY_H */