[Rcpp] add .clang-format definition and run:

`clang-format -i *.cpp`

.Rbuildignore

@@ -13,6 +13,7 @@ README.Rmd
 codecov.yml
 .lintr
 .covrignore
+^src/.clang-format$
 
 # Temporary files
 .DS_Store

R/RcppExports.R

@@ -169,22 +169,22 @@ write_xml_file <- function(xml_content, escapes) {
 #'
 #' @examples
 #'   # add single node
-#'     xml_node <- "<a foo=\"bar\">openxlsx2</a><b />"
-#'     xml_attr <- c(qux = "quux")
-#'     # "<a foo=\"bar\" qux=\"quux\">openxlsx2</a><b qux=\"quux\"/>"
-#'     xml_attr_mod(xml_node, xml_attr)
+#'   xml_node <- "<a foo=\"bar\">openxlsx2</a><b />"
+#'   xml_attr <- c(qux = "quux")
+#'   # "<a foo=\"bar\" qux=\"quux\">openxlsx2</a><b qux=\"quux\"/>"
+#'   xml_attr_mod(xml_node, xml_attr)
 #'
 #'   # update node and add node
-#'     xml_node <- "<a foo=\"bar\">openxlsx2</a><b />"
-#'     xml_attr <- c(foo = "baz", qux = "quux")
-#'     # "<a foo=\"baz\" qux=\"quux\">openxlsx2</a><b foo=\"baz\" qux=\"quux\"/>"
-#'     xml_attr_mod(xml_node, xml_attr)
+#'   xml_node <- "<a foo=\"bar\">openxlsx2</a><b />"
+#'   xml_attr <- c(foo = "baz", qux = "quux")
+#'   # "<a foo=\"baz\" qux=\"quux\">openxlsx2</a><b foo=\"baz\" qux=\"quux\"/>"
+#'   xml_attr_mod(xml_node, xml_attr)
 #'
 #'   # remove node and add node
-#'     xml_node <- "<a foo=\"bar\">openxlsx2</a><b />"
-#'     xml_attr <- c(foo = "", qux = "quux")
-#'     # "<a qux=\"quux\">openxlsx2</a><b qux=\"quux\"/>"
-#'     xml_attr_mod(xml_node, xml_attr)
+#'   xml_node <- "<a foo=\"bar\">openxlsx2</a><b />"
+#'   xml_attr <- c(foo = "", qux = "quux")
+#'   # "<a qux=\"quux\">openxlsx2</a><b qux=\"quux\"/>"
+#'   xml_attr_mod(xml_node, xml_attr)
 #' @export
 xml_attr_mod <- function(xml_content, xml_attributes, escapes = FALSE, declaration = FALSE, remove_empty_attr = TRUE) {
     .Call(`_openxlsx2_xml_attr_mod`, xml_content, xml_attributes, escapes, declaration, remove_empty_attr)

src/.clang-format

@@ -0,0 +1,14 @@
+IndentWidth: 2
+ContinuationIndentWidth: 2        # Control the indentation width after a line break, such as in function arguments
+ColumnLimit: 100                  # Set the maximum line length to 100 characters
+BreakBeforeBraces: Attach         # Keep braces on the same line as the function declaration
+BinPackParameters: false          # Force each parameter to appear on its own line
+BinPackArguments: false           # Force each argument in calls to appear on its own line
+AlignAfterOpenBracket: AlwaysBreak
+AlignConsecutiveAssignments: true # Align equal signs in consecutive assignments
+AlignConsecutiveDeclarations: true # Align types and variables in consecutive declarations
+AlignTrailingComments: true       # Align trailing comments
+AllowShortFunctionsOnASingleLine: None # Break short functions into multiple lines
+Cpp11BracedListStyle: true        # Format braced initializer lists cleanly
+PenaltyBreakBeforeFirstCallParameter: 0 # Encourage breaking after the first parameter
+