Try to improve error handling and messages

lexer/theme-lexer.l

@@ -4,7 +4,6 @@
 %{
 #include <stdio.h>
 
-
 #include "lexer/theme-parser.h"
 int last_state = 0;
 GQueue *queue = NULL;
@@ -341,6 +340,18 @@ if ( queue == NULL ){
 <INITIAL>. {
     return T_ERROR;
 }
+<ENTRY>. {
+    return T_ERROR_ENTRY;
+}
+<PROPERTIES>. {
+    return T_ERROR_PROPERTY;
+}
+<NAMESTR>. {
+    return T_ERROR_NAMESTRING;
+}
+<DEFAULTS>. {
+    return T_ERROR_DEFAULTS;
+}
 <*>. {
     return T_ERROR;
 }

lexer/theme-parser.y

@@ -1,10 +1,10 @@
 %define api.pure
+%locations
 %glr-parser
 %skeleton "glr.c"
-%locations
 %debug
 %error-verbose
-
+%parse-param {const char *what}
 %code requires {
 #include "theme.h"
 }
@@ -13,10 +13,9 @@
 #include <stdlib.h>
 #include <glib.h>
 
-
 #include "lexer/theme-parser.h"
 ThemeWidget *rofi_theme = NULL;
-void yyerror(YYLTYPE *yylloc, const char* s);
+void yyerror(YYLTYPE *yylloc, const char *what, const char* s);
 int yylex (YYSTYPE *, YYLTYPE *);
 %}
 
@@ -35,10 +34,14 @@ int yylex (YYSTYPE *, YYLTYPE *);
 
 %token <ival>     T_END              0  "end of file"
 %token <ival>     T_ERROR            1  "error from file parser"
+%token <ival>     T_ERROR_PROPERTY   2  "invalid property value"
+%token <ival>     T_ERROR_ENTRY      3  "invalid property name"
+%token <ival>     T_ERROR_NAMESTRING 4  "invalid element name"
+%token <ival>     T_ERROR_DEFAULTS   5  "invalid defaults name"
 %token <ival>     T_INT
 %token <fval>     T_DOUBLE
 %token <sval>     T_STRING
-%token <sval>     N_STRING
+%token <sval>     N_STRING     "property name"
 %token <ival>     T_POSITION;
 %token <ival>     T_HIGHLIGHT_STYLE
 %token <sval>     NAME_ELEMENT "Element name"

source/rofi.c

@@ -681,11 +681,15 @@ static gboolean startup ( G_GNUC_UNUSED gpointer data )
 
     if ( list_of_error_msgs != NULL ) {
         GString *emesg = g_string_new ( "The following errors where detected when starting rofi:\n");
-        for ( GList *iter = g_list_first ( list_of_error_msgs ); iter != NULL; iter = g_list_next ( iter ) ) {
+        GList *iter = g_list_first ( list_of_error_msgs );
+        if (  iter != NULL ) {
             GString *msg = (GString*)(iter->data);
             g_string_append( emesg, "\n\n");
             g_string_append ( emesg, msg->str );
         }
+        if ( g_list_length(iter)> 1 ){
+            g_string_append_printf(emesg, "\nThere are <b>%d</b> more errors.", g_list_length(iter)-1 );
+        }
         rofi_view_error_dialog ( emesg->str, ERROR_MSG_MARKUP );
         g_string_free ( emesg, TRUE );
         return G_SOURCE_REMOVE;

source/theme.c

@@ -12,7 +12,7 @@
 /** Logging domain for theme */
 #define LOG_DOMAIN    "Theme"
 
-void yyerror ( YYLTYPE *ylloc, const char * );
+void yyerror ( YYLTYPE *ylloc, const char *,const char * );
 static gboolean distance_compare ( Distance d, Distance e )
 {
     return d.type == e.type && d.distance == e.distance && d.style == e.style;
@@ -261,11 +261,14 @@ extern FILE* yyin;
  *
  * Error handler for the lex parser.
  */
-void yyerror ( YYLTYPE *yylloc, const char* s )
+void yyerror ( YYLTYPE *yylloc, const char *what, const char* s )
 {
-    GString *str = g_string_new ("<big><b>Error while parsing theme file:</b></big>\n");
+    char *what_esc = g_markup_escape_text ( what, -1);
+    GString *str = g_string_new("");
+    g_string_printf ( str, "<big><b>Error while parsing them:</b></big> <i>%s</i>\n", what_esc);
+    g_free ( what_esc );
     char *esc = g_markup_escape_text ( s, -1);
-    g_string_append_printf(str, "\tParser error: %s\n", esc );
+    g_string_append_printf(str, "\tParser error: <i>%s</i>\n", esc );
     g_free(esc);
     g_string_append_printf(str, "\tLocation:     line %d column %d to line %d column %d\n", yylloc->first_line, yylloc->first_column, yylloc->last_line, yylloc->last_column );
     rofi_add_error_message ( str );
@@ -864,7 +867,7 @@ gboolean rofi_theme_parse_file ( const char *file )
     extern const char*input_str;
     str_len   = 0;
     input_str = NULL;
-    int parser_retv = yyparse();
+    int parser_retv = yyparse(file);
     yylex_destroy ();
     g_free ( filename );
     yyin = NULL;
@@ -880,7 +883,7 @@ gboolean rofi_theme_parse_string ( const char *string )
     yyin      = NULL;
     input_str = string;
     str_len   = strlen ( string );
-    while ( yyparse () ) {
+    while ( yyparse (string) ) {
         ;
     }
     yylex_destroy ();

source/widgets/container.c

@@ -33,9 +33,6 @@
 
 #define LOG_DOMAIN              "Widgets.Window"
 
-/** The default border width of the container */
-#define DEFAULT_BORDER_WIDTH    2
-
 struct _window
 {
     widget widget;

source/widgets/widget.c

@@ -3,10 +3,12 @@
 #include "widgets/widget-internal.h"
 #include "theme.h"
 
+#define WIDGET_DEFAULT_PADDING 2
+
 void widget_init ( widget *widget, const char *name )
 {
     widget->name    = g_strdup ( name );
-    widget->padding = (Padding){ { 0, PW_PX, SOLID }, { 0, PW_PX, SOLID }, { 0, PW_PX, SOLID }, { 0, PW_PX, SOLID } };
+    widget->padding = (Padding){ { WIDGET_DEFAULT_PADDING, PW_PX, SOLID }, { WIDGET_DEFAULT_PADDING, PW_PX, SOLID }, { WIDGET_DEFAULT_PADDING, PW_PX, SOLID }, { WIDGET_DEFAULT_PADDING, PW_PX, SOLID } };
     widget->border  = (Padding){ { 0, PW_PX, SOLID }, { 0, PW_PX, SOLID }, { 0, PW_PX, SOLID }, { 0, PW_PX, SOLID } };
     widget->margin  = (Padding){ { 0, PW_PX, SOLID }, { 0, PW_PX, SOLID }, { 0, PW_PX, SOLID }, { 0, PW_PX, SOLID } };