[elpa] externals/auctex 70e62a9 57/69: Catch more bad box warnings

[Tassilo Horn]

branch: externals/auctex
commit 70e62a98cac5882e7e4c5c2c7cb719adbb48fdd2
Author: Mosè Giordano <address@hidden>
Commit: Mosè Giordano <address@hidden>

    Catch more bad box warnings
    
    * tex-buf.el (TeX-error-list): More information for some elements of the
    list.
    (TeX-parse-error): Change regexp to catch bad vertical boxes as well and
    provide new argument to `TeX-warning'.
    (TeX-warning): Require an additional mandatory argument, `bad-box'.
    Improve regexp for detecting ending line of horizontal bad boxes in
    order to cater for the case "...at line NN".
    * tests/tex/error-parsing.el: Update result of the test.
---
 tests/tex/error-parsing.el |    2 +-
 tex-buf.el                 |   35 +++++++++++++++++++++--------------
 2 files changed, 22 insertions(+), 15 deletions(-)

diff --git a/tests/tex/error-parsing.el b/tests/tex/error-parsing.el
index 6251847..979059b 100644
--- a/tests/tex/error-parsing.el
+++ b/tests/tex/error-parsing.el
@@ -81,7 +81,7 @@ ABD: EveryShipout initializing macros"
              "./secondary-file.tex" 131
              "Underfull \\hbox (badness 6608) in paragraph at lines 131--132"
              0 "\n[]|\\T1/jkpl/m/n/10.95 (+20) Something bla" "bla"
-             132 10 1268 nil)
+             132 t 1268 nil)
              (warning "./test.tex" 4
               "LaTeX Warning: Reference `wrong' on page 1 undefined on input 
line 4."
               0
diff --git a/tex-buf.el b/tex-buf.el
index c2ba9f8..052f414 100644
--- a/tex-buf.el
+++ b/tex-buf.el
@@ -2277,11 +2277,12 @@ error or warning.  This is the structure of each 
element:
  *  2: line
  *  3: message of the error or warning
  *  4: offset
- *  5: context
- *  6: string
+ *  5: context, to be displayed in the help window
+ *  6: string to search in the buffer, in order to find location
+       of the error or warning
  *  7: for warnings referring to multiple lines (e.g. bad boxes),
        the last line mentioned in the warning message
- *  8: bad-box
+ *  8: t if it is a bad-box, nil otherwise
  *  9: value of `TeX-error-point'
  * 10: whether the warning should be ignored
 
@@ -2329,7 +2330,7 @@ Return non-nil if an error or warning is found."
          "name(\\([^)]+\\))\\)\\|"
          ;; LaTeX bad box
          "^\\(\\(?:Overfull\\|Underfull\\|Tight\\|Loose\\)\
- \\\\.*?[0-9]+--[0-9]+\\)\\|"
+ \\\\[hv]box.*\\)\\|"
          ;; LaTeX warning
          "^\\(" LaTeX-warnings-regexp ".*\\)"))
        (error-found nil))
@@ -2363,7 +2364,7 @@ Return non-nil if an error or warning is found."
          (if (or store TeX-debug-bad-boxes)
              (progn
                (setq error-found t)
-               (TeX-warning (TeX-match-buffer 7) (match-beginning 7) store)
+               (TeX-warning (TeX-match-buffer 7) (match-beginning 7) t store)
                nil)
            (re-search-forward "\r?\n\
 \\(?:.\\{79\\}\r?\n\
@@ -2376,7 +2377,7 @@ Return non-nil if an error or warning is found."
          (if (or store TeX-debug-warnings)
              (progn
                (setq error-found t)
-               (TeX-warning (TeX-match-buffer 8) (match-beginning 8) store)
+               (TeX-warning (TeX-match-buffer 8) (match-beginning 8) nil store)
                nil)
            t))
 
@@ -2553,19 +2554,20 @@ information in `TeX-error-list' instead of displaying 
the error."
       ;; Find the error point and display the help.
       (apply 'TeX-find-display-help info-list))))
 
-(defun TeX-warning (warning warning-start &optional store)
+(defun TeX-warning (warning warning-start bad-box &optional store)
   "Display a warning for WARNING.
 
-WARNING-START is the position where WARNING starts.
+WARNING-START is the position where WARNING starts.  If BAD-BOX
+is non-nil, the warning refers to a bad-box, otherwise it is a
+generic warning.
 
 If optional argument STORE is non-nil, store the warning
 information in `TeX-error-list' instead of displaying the
 warning."
 
-  (let* ( ;; bad-box is nil if this is a "LaTeX Warning"
-        (bad-box (string-match "\\\\[vh]box.*[0-9]*--[0-9]*" warning))
-        ;; line-string: match 1 is beginning line, match 2 is end line
-        (line-string (if bad-box " \\([0-9]*\\)--\\([0-9]*\\)"
+  (let* ( ;; line-string: match 1 is beginning line, match 2 is end line
+        (line-string (if bad-box
+                         "at lines? \\([0-9]*\\)\\(?:--\\([0-9]*\\)\\)?"
                        "on input line \\([0-9]*\\)\\."))
         ;; word-string: match 1 is the word
         (word-string (if bad-box "[][\\W() ---]\\(\\w+\\)[][\\W() ---]*$"
@@ -2576,7 +2578,11 @@ warning."
         (line (when (save-excursion (re-search-backward line-string
                                                         warning-start t))
                 (string-to-number (TeX-match-buffer 1))))
-        (line-end (if bad-box (string-to-number (TeX-match-buffer 2))
+        ;; If this is a bad box and the warning ends with "...at lines MM--NN"
+        ;; we can use "NN" as `line-end', in any other case (including bad
+        ;; boxes ending with "...at line NN") just use `line'.
+        (line-end (if (and bad-box (match-beginning 2))
+                      (string-to-number (TeX-match-buffer 2))
                     line))
 
         ;; Find the context
@@ -2625,7 +2631,8 @@ warning."
     (and (null line)
         (string-match line-string context)
         (setq line-end
-              (setq line (string-to-number (match-string 1 context)))))
+              (setq line (and (match-beginning 1)
+                              (string-to-number (match-string 1 context))))))
 
     ;; This is where we start next time.
     (goto-char error-point)