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[elpa] externals/auctex 14a2b27 24/27: Improve conformance to code conve


From: Tassilo Horn
Subject: [elpa] externals/auctex 14a2b27 24/27: Improve conformance to code conventions, and documents
Date: Sat, 27 Jun 2020 03:17:45 -0400 (EDT)

branch: externals/auctex
commit 14a2b2710331aeda20b0f87b6689df5e1188b7db
Author: Ikumi Keita <ikumi@ikumi.que.jp>
Commit: Ikumi Keita <ikumi@ikumi.que.jp>

    Improve conformance to code conventions, and documents
    
    * font-latex.el (font-latex-update-math-env): Rename by changing "--"
    to "-" in function name.
    Don't alter user customize option `font-latex-math-environments'. In
    order to achieve that, use always `texmathp-tex-commands1' for
    input and omit argument LIST.
    * style/empheq.el: Arrange in accord with the above changes.
    * style/amsmath.el:
    * style/breqn.el:
    * style/mathtools.el:
    Arrange in accord with the above changes.
    Use `cl-pushnew' instead of `add-to-list' and require cl-lib in order
    to do that.
    * doc/changes.texi (News in 12.3):
    * texmathp.el:
    Mention change about support for AMS-LaTeX and packages mathtools,
    empheq and breqn.
---
 doc/changes.texi   | 10 ++++++++++
 font-latex.el      | 51 +++++++++++++++++++++++++++------------------------
 style/amsmath.el   | 15 ++++++++-------
 style/breqn.el     | 13 +++++++------
 style/empheq.el    | 14 +++++++-------
 style/mathtools.el |  6 ++++--
 texmathp.el        | 11 ++++++-----
 7 files changed, 69 insertions(+), 51 deletions(-)

diff --git a/doc/changes.texi b/doc/changes.texi
index 003e55b..396e955 100644
--- a/doc/changes.texi
+++ b/doc/changes.texi
@@ -31,6 +31,16 @@ instead.
 @xref{Fontification of math}.
 @end ifclear
 @item
+Support for highlighting and in-math state detection for AMS-LaTeX
+specific environments, such as @samp{align}, @samp{gather} and
+@samp{multiline}, are refactored and put into style file
+@file{amsmath.el}. So these support are available only when
+@code{TeX-parse-self} option is enabled.
+
+Support for in-math state detection for packages mathtools, empheq and
+breqn is also moved into the respective style files, so available only
+when @code{TeX-parse-self} option is enabled.
+@item
 @AUCTeX{} tracks changes in @LaTeX{}2e 2020-02-02 release.  @AUCTeX{}
 supports the improvements to @LaTeX{} font selection mechanism (NFSS).
 New macros like @samp{\textsw} or @samp{\textulc} are added to font
diff --git a/font-latex.el b/font-latex.el
index 984771d..d7d26fa 100644
--- a/font-latex.el
+++ b/font-latex.el
@@ -1786,33 +1786,36 @@ customization into `texmathp-tex-commands'."
 Set by `font-latex--update-math-env' and used in
 `font-latex-match-math-envII'.")
 
-(defun font-latex--update-math-env (list)
-  "Update variables for font locking of math environments by LIST.
+(defun font-latex-update-math-env ()
+  "Update regexp to search for math environments.
 Helper function for style files such as amsmath.el.
-LIST should have the same structure as `texmathp-tex-commands'.
-Extract environments marked as `env-on' in LIST and add them to
-`font-latex-math-environments', except starred variants. Then
-update `font-latex--match-math-envII-regexp'."
-  (dolist (entry list)
-    (if (and (eq 'env-on (cadr entry))
-            (not (string= "*" (substring (car entry) -1))))
-       ;; Just push since we no longer need to care the order of entries.
-       (cl-pushnew (car entry) font-latex-math-environments :test #'equal)))
-  (setq font-latex--match-math-envII-regexp
-       (concat "\\\\begin[ \t]*{"
-               (regexp-opt font-latex-math-environments t)
-               ;; Subexpression 2 is used to build the \end{<env>}
-               ;; construct later.
-               "\\(\\*?}\\)"
-               ;; Match an optional and possible mandatory
-               ;; argument(s) as long as they are on the same line
-               ;; with no spaces in-between. The content of optinal
-               ;; argument can span multiple lines.
-               "\\(?:\\[[^][]*\\(?:\\[[^][]*\\][^][]*\\)*\\]\\)?"
-               "\\(?:{[^}]*}\\)*")))
+Extract environments marked as `env-on' in
+`texmathp-tex-commands1' except starred variants. Then build
+`font-latex--match-math-envII-regexp' from them, appending the
+environments in `font-latex-math-environments'."
+  ;; Make sure `texmathp-tex-commands1' is up to date.
+  (texmathp-compile)
+  (let (envs)
+    (dolist (entry texmathp-tex-commands1)
+      (if (and (eq 'env-on (cadr entry))
+              (not (string= "*" (substring (car entry) -1))))
+         (cl-pushnew (car entry) envs :test #'equal)))
+    (setq font-latex--match-math-envII-regexp
+         (concat "\\\\begin[ \t]*{"
+                 ;; Take user additions also into account.
+                 (regexp-opt (append font-latex-math-environments envs) t)
+                 ;; Subexpression 2 is used to build the \end{<env>}
+                 ;; construct later.
+                 "\\(\\*?}\\)"
+                 ;; Match an optional and possible mandatory
+                 ;; argument(s) as long as they are on the same line
+                 ;; with no spaces in-between. The content of optional
+                 ;; argument can span multiple lines.
+                 "\\(?:\\[[^][]*\\(?:\\[[^][]*\\][^][]*\\)*\\]\\)?"
+                 "\\(?:{[^}]*}\\)*"))))
 
 ;; Initialize.
-(font-latex--update-math-env texmathp-tex-commands1)
+(font-latex-update-math-env)
 
 (defun font-latex-match-math-envII (limit)
   "Match math patterns up to LIMIT.
diff --git a/style/amsmath.el b/style/amsmath.el
index a31d1c1..0fd9817 100644
--- a/style/amsmath.el
+++ b/style/amsmath.el
@@ -29,13 +29,14 @@
 ;; This will also load the amstext, amsbsy and amsopn style files.
 
 ;;; Code:
+(eval-when-compile (require 'cl-lib))
 
 ;; Fontification
 (declare-function font-latex-add-keywords
                  "font-latex"
                  (keywords class))
-(declare-function font-latex--update-math-env
-                 "font-latex" (list))
+(declare-function font-latex-update-math-env
+                 "font-latex")
 (require 'texmathp)
 (let ((list '(("equation*"     env-on)
              ("align"         env-on) ("align*"        env-on)
@@ -47,11 +48,11 @@
              ("xxalignat"     env-on) ("\\boxed"       arg-on)
              ("\\text"        arg-off) ("\\intertext"   arg-off))))
   (dolist (entry list)
-    (add-to-list 'texmathp-tex-commands-default entry))
-  (texmathp-compile)
-  (when (and (featurep 'font-latex)
-            (eq TeX-install-font-lock 'font-latex-setup))
-    (font-latex--update-math-env list)))
+    (cl-pushnew entry texmathp-tex-commands-default :test #'equal)))
+(texmathp-compile)
+(if (and (featurep 'font-latex)
+        (eq TeX-install-font-lock 'font-latex-setup))
+    (font-latex-update-math-env))
 
 (TeX-add-style-hook
  "amsmath"
diff --git a/style/breqn.el b/style/breqn.el
index d10fd04..22c45aa 100644
--- a/style/breqn.el
+++ b/style/breqn.el
@@ -49,6 +49,7 @@
 ;;; Code:
 
 (require 'latex)
+(eval-when-compile (require 'cl-lib))
 
 (defvar LaTeX-breqn-key-val-options
   '(("style" ("\\tiny" "\\scriptsize" "\\footnotesize" "\\small"
@@ -96,7 +97,7 @@ Keys offered for key=val query depend on ENV.  \"label\" and
 (add-hook 'TeX-update-style-hook #'TeX-auto-parse t)
 
 ;; Fontification
-(declare-function font-latex--update-math-env "font-latex" (list))
+(declare-function font-latex-update-math-env "font-latex")
 (require 'texmathp)
 (let ((list '(("dmath"         env-on) ("dmath*"        env-on)
              ("dseries"       env-on) ("dseries*"      env-on)
@@ -104,11 +105,11 @@ Keys offered for key=val query depend on ENV.  \"label\" 
and
              ("darray"        env-on) ("darray*"       env-on)
              ("dsuspend"      env-off))))
   (dolist (entry list)
-    (add-to-list 'texmathp-tex-commands-default entry))
-  (texmathp-compile)
-  (when (and (featurep 'font-latex)
-            (eq TeX-install-font-lock 'font-latex-setup))
-    (font-latex--update-math-env list)))
+    (cl-pushnew entry texmathp-tex-commands-default :test #'equal)))
+(texmathp-compile)
+(if (and (featurep 'font-latex)
+        (eq TeX-install-font-lock 'font-latex-setup))
+    (font-latex-update-math-env))
 
 (TeX-add-style-hook
  "breqn"
diff --git a/style/empheq.el b/style/empheq.el
index e8b5b51..9add6c4 100644
--- a/style/empheq.el
+++ b/style/empheq.el
@@ -41,8 +41,8 @@
 (declare-function font-latex-add-keywords
                  "font-latex"
                  (keywords class))
-(declare-function font-latex--update-math-env
-                 "font-latex" (list))
+(declare-function font-latex-update-math-env
+                 "font-latex")
 
 (declare-function LaTeX-item-equation-alignat
                  "amsmath" (&optional suppress))
@@ -288,11 +288,11 @@ number of ampersands if possible."
              ("AmSflalign"    env-on) ("AmSflalign*"   env-on)
              ("AmSalignat"    env-on) ("AmSalignat*"   env-on))))
   (dolist (entry list)
-    (cl-pushnew entry texmathp-tex-commands-default :test #'equal))
-  (texmathp-compile)
-  (when (and (featurep 'font-latex)
-            (eq TeX-install-font-lock 'font-latex-setup))
-    (font-latex--update-math-env list)))
+    (cl-pushnew entry texmathp-tex-commands-default :test #'equal)))
+(texmathp-compile)
+(if (and (featurep 'font-latex)
+        (eq TeX-install-font-lock 'font-latex-setup))
+    (font-latex-update-math-env))
 
 (TeX-add-style-hook
  "empheq"
diff --git a/style/mathtools.el b/style/mathtools.el
index 9701353..5695f11 100644
--- a/style/mathtools.el
+++ b/style/mathtools.el
@@ -39,6 +39,8 @@
 ;; Needed for auto-parsing:
 (require 'tex)
 
+(eval-when-compile (require 'cl-lib))
+
 ;; Silence the compiler:
 (declare-function font-latex-add-keywords
                  "font-latex"
@@ -237,8 +239,8 @@ Put line break macro on the last line.  Next, insert an 
ampersand."
 
 ;; Fontification
 (require 'texmathp)
-(add-to-list 'texmathp-tex-commands-default
-            '("\\shortintertext" arg-off))
+(cl-pushnew '("\\shortintertext" arg-off)
+           texmathp-tex-commands-default :test #'equal)
 (texmathp-compile)
 
 (TeX-add-style-hook
diff --git a/texmathp.el b/texmathp.el
index 1755de2..326caad 100644
--- a/texmathp.el
+++ b/texmathp.el
@@ -51,11 +51,12 @@
 ;;  specifying which command at what position is responsible for math
 ;;  mode being on or off.
 ;;
-;;  To configure which macros and environments influence LaTeX math mode,
-;;  customize the variable `texmathp-tex-commands'.  By default
-;;  it recognizes the plain TeX and LaTeX core as well as AMS-LaTeX and
-;;  packages mathtools, empheq and breqn (see the variable
-;;  `texmathp-tex-commands-default', also as an example).
+;;  To configure which macros and environments influence LaTeX math
+;;  mode, customize the variable `texmathp-tex-commands'. By default
+;;  it recognizes the plain TeX and LaTeX core (see the variable
+;;  `texmathp-tex-commands-default', also as an example). Support for
+;;  AMS-LaTeX and packages mathtools, empheq and breqn is added as
+;;  well if `TeX-parse-self' option is enabled.
 ;;
 ;;  To try out the code interactively, use `M-x texmathp RET'.
 ;;



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