1 files changed, 88 insertions, 7 deletions

diff --git a/source/blender/blenkernel/intern/text.c b/source/blender/blenkernel/intern/text.c
index dac426de4eb..8bf0f6b8bdf 100644
--- a/source/blender/blenkernel/intern/text.c
+++ b/source/blender/blenkernel/intern/text.c
@@ -130,8 +130,10 @@ undo position
 static void txt_pop_first(Text *text);
 static void txt_pop_last(Text *text);
 static void txt_undo_add_op(Text *text, int op);
-static void txt_undo_add_block(Text *text, int op, char *buf);
+static void txt_undo_add_block(Text *text, int op, const char *buf);
 static void txt_delete_line(Text *text, TextLine *line);
+static void txt_delete_sel (Text *text);
+static void txt_make_dirty (Text *text);
 
 /***/
 
@@ -537,6 +539,30 @@ void unlink_text(Main *bmain, Text *text)
 	text->id.us= 0;
 }
 
+void clear_text(Text *text) /* called directly from rna */
+{
+	int oldstate;
+
+	oldstate = txt_get_undostate(  );
+	txt_set_undostate( 1 );
+	txt_sel_all( text );
+	txt_delete_sel(text);
+	txt_set_undostate( oldstate );
+
+	txt_make_dirty(text);
+}
+
+void write_text(Text *text, char *str) /* called directly from rna */
+{
+	int oldstate;
+
+	oldstate = txt_get_undostate(  );
+	txt_insert_buf( text, str );
+	txt_move_eof( text, 0 );
+	txt_set_undostate( oldstate );
+
+	txt_make_dirty(text);
+}
 
 /*****************************/
 /* Editing utility functions */
@@ -570,17 +596,15 @@ static TextLine *txt_new_line(char *str)
 	return tmp;
 }
 
-static TextLine *txt_new_linen(char *str, int n)
+static TextLine *txt_new_linen(const char *str, int n)
 {
 	TextLine *tmp;
 
-	if(!str) str= "";
-	
 	tmp= (TextLine *) MEM_mallocN(sizeof(TextLine), "textline");
 	tmp->line= MEM_mallocN(n+1, "textline_string");
 	tmp->format= NULL;
 	
-	BLI_strncpy(tmp->line, str, n+1);
+	BLI_strncpy(tmp->line, (str)? str: "", n+1);
 	
 	tmp->len= strlen(tmp->line);
 	tmp->next= tmp->prev= NULL;
@@ -1315,7 +1339,7 @@ char *txt_sel_to_buf (Text *text)
 	return buf;
 }
 
-void txt_insert_buf(Text *text, char *in_buffer)
+void txt_insert_buf(Text *text, const char *in_buffer)
 {
 	int i=0, l=0, j, u, len;
 	TextLine *add;
@@ -1544,7 +1568,7 @@ static void txt_undo_add_op(Text *text, int op)
 	text->undo_buf[text->undo_pos+1]= 0;
 }
 
-static void txt_undo_add_block(Text *text, int op, char *buf)
+static void txt_undo_add_block(Text *text, int op, const char *buf)
 {
 	int length;
 	
@@ -2808,3 +2832,60 @@ TextMarker *txt_next_marker(Text *text, TextMarker *marker) {
 	}
 	return NULL; /* Only if marker==NULL */
 }
+
+
+/*******************************/
+/* Character utility functions */
+/*******************************/
+
+int text_check_bracket(char ch)
+{
+	int a;
+	char opens[] = "([{";
+	char close[] = ")]}";
+
+	for(a=0; a<(sizeof(opens)-1); a++) {
+		if(ch==opens[a])
+			return a+1;
+		else if(ch==close[a])
+			return -(a+1);
+	}
+	return 0;
+}
+
+int text_check_delim(char ch)
+{
+	int a;
+	char delims[] = "():\"\' ~!%^&*-+=[]{};/<>|.#\t,";
+
+	for(a=0; a<(sizeof(delims)-1); a++) {
+		if(ch==delims[a])
+			return 1;
+	}
+	return 0;
+}
+
+int text_check_digit(char ch)
+{
+	if(ch < '0') return 0;
+	if(ch <= '9') return 1;
+	return 0;
+}
+
+int text_check_identifier(char ch)
+{
+	if(ch < '0') return 0;
+	if(ch <= '9') return 1;
+	if(ch < 'A') return 0;
+	if(ch <= 'Z' || ch == '_') return 1;
+	if(ch < 'a') return 0;
+	if(ch <= 'z') return 1;
+	return 0;
+}
+
+int text_check_whitespace(char ch)
+{
+	if(ch == ' ' || ch == '\t' || ch == '\r' || ch == '\n')
+		return 1;
+	return 0;
+}