[vala/staging: 2/2] Make more use of native GLib.Regex syntax

[Rico Tzschichholz <ricotz src gnome org>]

commit b2ef0ed8d2c37a813f9ad8b35c7a7e4a1d639e1c
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Wed Dec 22 09:16:52 2021 +0100

    Make more use of native GLib.Regex syntax

 ccode/valaccodewriter.vala    | 5 +----
 libvaladoc/errorreporter.vala | 7 +------
 vala/valareport.vala          | 9 +--------
 3 files changed, 3 insertions(+), 18 deletions(-)
---
diff --git a/ccode/valaccodewriter.vala b/ccode/valaccodewriter.vala
index 21cc41720..11a3b0e31 100644
--- a/ccode/valaccodewriter.vala
+++ b/ccode/valaccodewriter.vala
@@ -48,8 +48,6 @@ public class Vala.CCodeWriter {
                get { return _bol; }
        }
 
-       static GLib.Regex fix_indent_regex;
-
        private string temp_filename;
        private bool file_exists;
 
@@ -246,8 +244,7 @@ public class Vala.CCodeWriter {
                        bool first = true;
 
                        // discard tabs at beginning of line
-                       if (fix_indent_regex == null)
-                               fix_indent_regex = new GLib.Regex ("^\t+");;
+                       unowned Regex fix_indent_regex = /^\t+/;
 
                        foreach (unowned string line in text.split ("\n")) {
                                if (!first) {
diff --git a/libvaladoc/errorreporter.vala b/libvaladoc/errorreporter.vala
index 68b09a8ef..b6035e0fe 100644
--- a/libvaladoc/errorreporter.vala
+++ b/libvaladoc/errorreporter.vala
@@ -137,12 +137,7 @@ public class Valadoc.ErrorReporter : Object {
         * }}}
         */
        public bool set_colors (string str) {
-               Regex val_regex;
-               try {
-                       val_regex = new Regex ("^\\s*[0-9]+(;[0-9]*)*\\s*$");
-               } catch (RegexError e) {
-                       assert_not_reached ();
-               }
+               unowned Regex val_regex = /^\\s*[0-9]+(;[0-9]*)*\\s*$/;
 
                string error_color = null;
                string warning_color = null;
diff --git a/vala/valareport.vala b/vala/valareport.vala
index 3d3a95fc8..9665c2d11 100644
--- a/vala/valareport.vala
+++ b/vala/valareport.vala
@@ -106,8 +106,6 @@ public class Vala.Report {
 
        public bool enable_warnings { get; set; default = true; }
 
-       static GLib.Regex val_regex;
-
        /**
         * Set all colors by string
         *
@@ -116,12 +114,7 @@ public class Vala.Report {
         * }}}
         */
        public bool set_colors (string str, Report.Colored colored_output = Report.Colored.AUTO) {
-               try {
-                       if (val_regex == null)
-                               val_regex = new Regex ("^\\s*[0-9]+(;[0-9]*)*\\s*$");
-               } catch (RegexError e) {
-                       assert_not_reached ();
-               }
+               unowned Regex val_regex = /^\\s*[0-9]+(;[0-9]*)*\\s*$/;
 
                string error_color = null;
                string warning_color = null;