master 08e7f159 1/2: Improve fontification of arguments

[Arash Esbati]

branch: master
commit 08e7f159e8abe971608aea8cd9b08ec204c8ab8e
Author: Arash Esbati <ar...@gnu.org>
Commit: Arash Esbati <ar...@gnu.org>

    Improve fontification of arguments
    
    * font-latex.el (font-latex-built-in-keyword-classes): Improve
    fontification of arguments provided as macros and not inside
    braces.
    
    * tests/latex/font-latex-test.el
    (font-latex-general-fontification): Adjust test.
---
 font-latex.el                  |  6 +++---
 tests/latex/font-latex-test.el | 17 ++++++++++++++++-
 2 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/font-latex.el b/font-latex.el
index ec99d54c..70186748 100644
--- a/font-latex.el
+++ b/font-latex.el
@@ -241,9 +241,9 @@ variable `font-latex-fontify-sectioning'." ',num)
       "makeatletter" "makeatother" "newblock" "suppressfloats" "endinput")
      font-latex-warning-face 1 noarg)
     ("variable"
-     (("setlength" "|{\\{") ("settowidth" "|{\\{") ("settoheight" "{{")
-      ("settodepth" "{{") ("setcounter" "{|{\\")
-      ("addtolength" "|{\\{") ("addtocounter" "{|{\\")
+     (("setlength" "|{\\|{\\") ("addtolength" "|{\\|{\\")
+      ("settowidth" "|{\\|{\\") ("settoheight" "|{\\|{\\") ("settodepth" 
"|{\\|{\\")
+      ("setcounter" "{|{\\") ("addtocounter" "{|{\\")
       ("stepcounter" "{") ("refstepcounter" "{")
       ("counterwithin" "*[{{") ("counterwithout" "*[{{")
       ("arabic" "{") ("roman" "{") ("Roman" "{") ("alph" "{") ("Alph" "{")
diff --git a/tests/latex/font-latex-test.el b/tests/latex/font-latex-test.el
index 94150ac0..3039bf15 100644
--- a/tests/latex/font-latex-test.el
+++ b/tests/latex/font-latex-test.el
@@ -1,6 +1,6 @@
 ;;; font-latex-test.el --- tests for font-latex  -*- lexical-binding: t; -*-
 
-;; Copyright (C) 2020-2023  Free Software Foundation, Inc.
+;; Copyright (C) 2020-2024  Free Software Foundation, Inc.
 
 ;; This file is part of AUCTeX.
 
@@ -107,6 +107,10 @@ $a$")
           (font-latex-fontify-sectioning 'color))
       (insert "\
 \\documentclass[10pt]{article}
+
+\\setlength{\\parskip}{3cm}
+\\addtolength\\parskip\\foo
+
 \\begin{document}
 
 \\section{Macros}
@@ -186,6 +190,17 @@ x
       (should (font-latex-faces-present-p 'font-lock-function-name-face))
       (end-of-line)
 
+      ;; Test for \setlength alternatives:
+      (re-search-forward "\\\\setlength{\\\\p")
+      (should (font-latex-faces-present-p 'font-lock-variable-name-face
+                                          (match-end 0)))
+      (re-search-forward "\\\\addtolength\\\\p")
+      (should (font-latex-faces-present-p 'font-lock-variable-name-face
+                                          (match-end 0)))
+      (re-search-forward "\\\\f")
+      (should (font-latex-faces-present-p 'font-lock-variable-name-face
+                                          (match-end 0)))
+
       ;; Test for \section macro itself:
       (re-search-forward "\\\\sec\\(?1:t\\)ion{")
       (should (font-latex-faces-present-p 'font-lock-keyword-face