diff --git a/.astylerc b/.astylerc
new file mode 100644
index 00000000..25414900
--- /dev/null
+++ b/.astylerc
@@ -0,0 +1,15 @@
+# style
+--style=kr
+--indent=spaces=4
+--indent-namespaces
+--lineend=linux
+--min-conditional-indent=0
+
+# options
+--pad-header
+--unpad-paren
+--suffix=none
+--convert-tabs
+--attach-inlines
+--attach-classes
+--attach-namespaces
diff --git a/runastyle b/runastyle
index 64298273..fc7094c5 100755
--- a/runastyle
+++ b/runastyle
@@ -4,20 +4,34 @@
 # different versions might have different output (this has happened in
 # the past).
 
-# If project management wishes to take a newer astyle version into use
-# just change this string to match the start of astyle version string.
-ASTYLE_VERSION="Artistic Style Version 3.0.1"
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+cd $SCRIPT_DIR
+
+# To require a newer astyle version, update ASTYLE_VERSION below.
+# ASTYLE_VERSION_STR is then constructed to match the beginning of the
+# version string reported by "astyle --version".
+ASTYLE_VERSION="3.4.13"
+ASTYLE_VERSION_STR="Artistic Style Version ${ASTYLE_VERSION}"
 ASTYLE="astyle"
 
-DETECTED_VERSION=`$ASTYLE --version 2>&1`
-if [[ "$DETECTED_VERSION" != ${ASTYLE_VERSION}* ]]; then
-    echo "You should use: ${ASTYLE_VERSION}";
-    echo "Detected: ${DETECTED_VERSION}"
-    exit 1;
+if command -v astyle &> /dev/null; then
+    ASTYLE="astyle"
+elif command -v uvx &> /dev/null; then
+    ASTYLE="uvx --quiet ${ASTYLE}==${ASTYLE_VERSION}"
+elif command -v pipx &> /dev/null; then
+    ASTYLE="pipx run --quiet ${ASTYLE}==${ASTYLE_VERSION}"
+else
+    echo "Neither astyle, uvx, nor pipx found in PATH"
+    exit 1
 fi
 
-style="--style=kr --indent=spaces=4 --indent-namespaces --lineend=linux --min-conditional-indent=0"
-options="--options=none --pad-header --unpad-paren --suffix=none --convert-tabs --attach-inlines --attach-classes --attach-namespaces"
+DETECTED_VERSION_STR=`$ASTYLE --version 2>&1`
+if [[ "$DETECTED_VERSION_STR" != ${ASTYLE_VERSION_STR}* ]]; then
+    echo "You should use: ${ASTYLE_VERSION_STR}";
+    echo "Detected: ${DETECTED_VERSION_STR}"
+    exit 1;
+fi
 
-$ASTYLE $style $options *.cpp
-$ASTYLE $style $options *.h
+# Run astyle with the project config
+$ASTYLE --project *.h,*.cpp
diff --git a/runastyle.bat b/runastyle.bat
index b8f11561..905e898e 100644
--- a/runastyle.bat
+++ b/runastyle.bat
@@ -1,26 +1,53 @@
-@REM Script to run AStyle on the sources
-@REM The version check in this script is used to avoid commit battles
-@REM between different developers that use different astyle versions as
-@REM different versions might have different output (this has happened in
-@REM the past).
+@ECHO off
+REM Script to run AStyle on the sources
+REM The version check in this script is used to avoid commit battles
+REM between different developers that use different astyle versions as
+REM different versions might have different output (this has happened in
+REM the past).
 
-@REM If project management wishes to take a newer astyle version into use
-@REM just change this string to match the start of astyle version string.
-@SET ASTYLE_VERSION="Artistic Style Version 3.0.1"
-@SET ASTYLE="astyle"
+REM Get the directory of the script
+SET SCRIPT_DIR=%~dp0
 
-@SET DETECTED_VERSION=""
-@FOR /F "tokens=*" %%i IN ('%ASTYLE% --version') DO SET DETECTED_VERSION=%%i
-@ECHO %DETECTED_VERSION% | FINDSTR /B /C:%ASTYLE_VERSION% > nul && (
-    ECHO "%DETECTED_VERSION%" matches %ASTYLE_VERSION%
+REM Change to that directory
+CD /d %SCRIPT_DIR%
+
+REM To require a newer astyle version, update ASTYLE_VERSION below.
+REM ASTYLE_VERSION_STR is then constructed to match the beginning of the
+REM version string reported by "astyle --version".
+SET ASTYLE_VERSION="3.4.13"
+SET ASTYLE_VERSION_STR="Artistic Style Version %ASTYLE_VERSION%"
+
+REM Prefer system astyle; else try uvx; else pipx
+SET "ASTYLE=astyle"
+where astyle >nul 2>nul
+IF %errorlevel% neq 0 (
+  where uvx >nul 2>nul
+  IF %errorlevel% eq 0 (
+    SET "ASTYLE=uvx --quiet astyle==%ASTYLE_VERSION%"
+  ) ELSE (
+    where pipx >nul 2>nul
+    IF %errorlevel% eq 0 (
+      SET "ASTYLE=pipx run --quiet astyle==%ASTYLE_VERSION%"
+    ) ELSE (
+      ECHO ERROR: Neither astyle, uvx, nor pipx found in PATH.
+      GOTO EXIT_ERROR
+    )
+  )
+)
+
+SET DETECTED_VERSION_STR=""
+FOR /F "tokens=*" %%i IN ('%ASTYLE% --version') DO SET DETECTED_VERSION_STR=%%i
+ECHO %DETECTED_VERSION_STR% | FINDSTR /B /C:%ASTYLE_VERSION_STR% > nul && (
+    ECHO "%DETECTED_VERSION_STR%" matches %ASTYLE_VERSION_STR%
 ) || (
-    ECHO You should use: %ASTYLE_VERSION%
-    ECHO Detected: "%DETECTED_VERSION%"
+    ECHO You should use: %ASTYLE_VERSION_STR%
+    ECHO Detected: "%DETECTED_VERSION_STR%"
     GOTO EXIT_ERROR
 )
 
-@SET STYLE=--style=kr --indent=spaces=4 --indent-namespaces --lineend=linux --min-conditional-indent=0
-@SET OPTIONS=--pad-header --unpad-paren --suffix=none --convert-tabs --attach-inlines --attach-classes --attach-namespaces
+REM Run astyle with the project config
+%ASTYLE% --project *.h,*.cpp
+GOTO :EOF
 
-%ASTYLE% %STYLE% %OPTIONS% *.cpp
-%ASTYLE% %STYLE% %OPTIONS% *.h
\ No newline at end of file
+:EXIT_ERROR
+EXIT /b 1
diff --git a/simplecpp.cpp b/simplecpp.cpp
index fd327549..87c92aca 100644
--- a/simplecpp.cpp
+++ b/simplecpp.cpp
@@ -761,18 +761,18 @@ void simplecpp::TokenList::readfile(Stream &stream, const std::string &filename,
             while (stream.good() && ch != '\n') {
                 currentToken += ch;
                 ch = stream.readChar();
-                if(ch == '\\') {
+                if (ch == '\\') {
                     TokenString tmp;
                     char tmp_ch = ch;
-                    while((stream.good()) && (tmp_ch == '\\' || tmp_ch == ' ' || tmp_ch == '\t')) {
+                    while ((stream.good()) && (tmp_ch == '\\' || tmp_ch == ' ' || tmp_ch == '\t')) {
                         tmp += tmp_ch;
                         tmp_ch = stream.readChar();
                     }
-                    if(!stream.good()) {
+                    if (!stream.good()) {
                         break;
                     }
 
-                    if(tmp_ch != '\n') {
+                    if (tmp_ch != '\n') {
                         currentToken += tmp;
                     } else {
                         const TokenString check_portability = currentToken + tmp;
diff --git a/test.cpp b/test.cpp
index ccb653ca..09c2ba92 100644
--- a/test.cpp
+++ b/test.cpp
@@ -438,14 +438,14 @@ static void comment_multiline()
     ASSERT_EQUALS("\n\nvoid f ( ) {", preprocess(code));
 
     const char code1[] = "#define ABC {// \\\r\n"
-                        "}\n"
-                        "void f() ABC\n";
+                         "}\n"
+                         "void f() ABC\n";
     ASSERT_EQUALS("\n\nvoid f ( ) {", preprocess(code1));
 
     const char code2[] = "#define A 1// \\\r"
-                        "\r"
-                        "2\r"
-                        "A\r";
+                         "\r"
+                         "2\r"
+                         "A\r";
     ASSERT_EQUALS("\n\n2\n1", preprocess(code2));
 
     const char code3[] = "void f() {// \\ \n}\n";
@@ -2100,7 +2100,7 @@ static void circularInclude()
             "#define TEST_H\n"
             "#include \"a/a.h\"\n"
             "#endif\n"
-        ;
+            ;
         cache.insert({path, makeTokenList(code, files, path)});
     }
 
@@ -2111,7 +2111,7 @@ static void circularInclude()
             "#define A_H\n"
             "#include \"../test.h\"\n"
             "#endif\n"
-        ;
+            ;
         cache.insert({path, makeTokenList(code, files, path)});
     }
 
@@ -3176,7 +3176,8 @@ static void fuzz_crash()
                             "n\n";
         (void)preprocess(code, simplecpp::DUI()); // do not crash
     }
-    { // #346
+    {
+        // #346
         const char code[] = "#define foo(intp)f##oo(intp\n"
                             "foo(f##oo(intp))\n";
         (void)preprocess(code, simplecpp::DUI()); // do not crash