[elpa] externals/auctex 57147c7 59/69: Another fix for vertical bad box warnings

[Tassilo Horn]

branch: externals/auctex
commit 57147c70646594270973364a0130650d419c9b34
Author: Mosè Giordano <address@hidden>
Commit: Mosè Giordano <address@hidden>

    Another fix for vertical bad box warnings
    
    * tex-buf.el (TeX-parse-error): Use different regexps for horizontal and
      vertical bad boxes, they cannot be handled together.
    (TeX-warning): Do not move point when a vertical bad box has been found.
    * tests/tex/compilation-log.txt: Add a test where the parser used to
      fail to find the file for warnings after a vertical bad box warning.
    * tests/tex/error-parsing.el: Update result accordingly.
---
 tests/tex/compilation-log.txt |   14 ++++++++++++++
 tests/tex/error-parsing.el    |   12 +++++++++++-
 tex-buf.el                    |   40 ++++++++++++++++++++++++++++++----------
 3 files changed, 55 insertions(+), 11 deletions(-)

diff --git a/tests/tex/compilation-log.txt b/tests/tex/compilation-log.txt
index 3598af4..f3d2b00 100644
--- a/tests/tex/compilation-log.txt
+++ b/tests/tex/compilation-log.txt
@@ -47,6 +47,20 @@ Overfull \hbox (0.93071pt too wide) detected at line 31
  []\T1/jkpl/m/n/10.95 144
 )
 
+(./file  name/with spaces.tex
+chapter 5.
+<use image/an_image.pdf> [82] [83 <./image/an_image.pdf>] [84] [85] [86] 
(./image/another.tex
+<image/another.pdf, id=1357, 208.78pt x 146.5475pt> <use image/another.pdf>)
+<image/another2.pdf, id=1358, 542.025pt x 481.8pt> <use image/another2.pdf>
+Underfull \vbox (badness 3942) has occurred while \output is active [87 
<./image/another.pdf> <./image/another2.pdf>] [88] (./image/beta.tex
+<image/beta.pdf, id=1410, 289.08pt x 201.75375pt>
+<use image/beta.pdf>) [89] [90 <./image/beta.pdf>]
+Overfull \hbox (13.59138pt too wide) in paragraph at lines 367--368
+[]\T1/pplj/m/n/10.95 Un qua-dri-vet-to-re co-va-rian-te $\OMS/zplm/m/n/10.95 
f\OML/zplm/m/it/10.95 A[]\OMS/zplm/m/n/10.95 g$ \T1/pplj/m/n/10.95 e un 
in-sie-me di quat-tro quan-ti-ta $\OT1/zplm/m/n/10.95 (\OML/zplm/m/it/10.95 
A[]; A[]; A[]; A[]\OT1/zplm/m/n/10.95 )$
+[91] [92]
+
+[93])
+
 LaTeX Warning: There were undefined references.
 
 )
diff --git a/tests/tex/error-parsing.el b/tests/tex/error-parsing.el
index 170c8bf..2d0f282 100644
--- a/tests/tex/error-parsing.el
+++ b/tests/tex/error-parsing.el
@@ -100,7 +100,17 @@ ABD: EveryShipout initializing macros"
              ;; context of the first one.
              (bad-box "./test.lof" 31 "Overfull \\hbox (0.93071pt too wide) 
detected at line 31"
               0 "\n []\\T1/jkpl/m/n/10.95 144" "144" 31 t 1733 nil)
+             ;; The line of this warning ends with a new file opened.  This 
test
+             ;; makes sure point stays exactly at the end of the warning so 
that
+             ;; the next the next warning in the list has the right file
+             ;; (otherwise it would be nil).
+             (bad-box "./file  name/with spaces.tex" nil "Underfull \\vbox 
(badness 3942) has occurred while \\output is active [87 <./image/another.pdf> 
<./image/another2.pdf>]"
+              0 "\nUnderfull \\vbox (badness 3942) has occurred while \\output 
is active [87 <./image/another.pdf> <./image/another2.pdf>]"
+              nil nil t 2142 nil)
+             (bad-box "./file  name/with spaces.tex" 367 "Overfull \\hbox 
(13.59138pt too wide) in paragraph at lines 367--368"
+              0 "\n[]\\T1/pplj/m/n/10.95 Un qua-dri-vet-to-re co-va-rian-te 
$\\OMS/zplm/m/n/10.95 f\\OML/zplm/m/it/10.95 A[]\\OMS/zplm/m/n/10.95 g$ 
\\T1/pplj/m/n/10.95 e un in-sie-me di quat-tro quan-ti-ta $\\OT1/zplm/m/n/10.95 
(\\OML/zplm/m/it/10.95 A[]; A[]; A[]; A[]\\OT1/zplm/m/n/10.95 )$" "$"
+              368 t 2600 nil)
              (warning "./test.tex" nil "LaTeX Warning: There were undefined 
references."
-              0 "LaTeX Warning: There were undefined references.\n" nil nil 
nil 1785 nil)))))
+              0 "LaTeX Warning: There were undefined references.\n" nil nil 
nil 2667 nil)))))
 
 ;;; error-parsing.el ends here
diff --git a/tex-buf.el b/tex-buf.el
index 15e9a69..9a3662b 100644
--- a/tex-buf.el
+++ b/tex-buf.el
@@ -2328,9 +2328,12 @@ Return non-nil if an error or warning is found."
          " !\\(?:offset(\\([---0-9]+\\))\\|"
          ;; Hook to change file name
          "name(\\([^)]+\\))\\)\\|"
-         ;; LaTeX bad box
-         "^\\(\\(?:Overfull\\|Underfull\\|Tight\\|Loose\\)\
- \\\\[hv]box.*\\)\\|"
+         ;; Start of LaTeX bad box
+         "^\\(\\(?:Overfull\\|Underfull\\|Tight\\|Loose\\) "
+         ;;   Horizontal bad box
+         "\\(?:\\\\hbox.* at lines? [0-9]+\\(?:--[0-9]+\\)?$\\|"
+         ;;   Vertical bad box.  See also `TeX-warning'.
+         "\\\\vbox ([ a-z0-9]+) has occurred while \\\\output is active 
\\[[^]]+\\]\\)\\)\\|"
          ;; LaTeX warning
          "^\\(" LaTeX-warnings-regexp ".*\\)"))
        (error-found nil))
@@ -2586,8 +2589,25 @@ warning."
                     line))
 
         ;; Find the context
-        (context-start (progn (if bad-box (end-of-line)
-                                (beginning-of-line))
+        (context-start (progn (cond
+                               ((and bad-box (string-match "\\\\hbox" warning))
+                                ;; Horizontal bad box
+                                (end-of-line))
+                               (bad-box
+                                ;; Vertical bad box (by exclusion), don't move
+                                ;; point.  In the output buffer, unlike in the
+                                ;; actual *.log file, these warnings do not end
+                                ;; with "...is active []", but in the same line
+                                ;; there may be something else, including a new
+                                ;; file opened.  Thus, point shouldn't move
+                                ;; from the end of the actual bad box warning.
+                                ;; This is why the corresponding regexp in
+                                ;; `TeX-parse-error' doesn't match everything
+                                ;; until the end of the line.
+                                nil)
+                               (t
+                                ;; Generic warning.
+                                (beginning-of-line)))
                               (point)))
 
         (context (cond ((string-match LaTeX-warnings-regexp warning)
@@ -2603,11 +2623,11 @@ warning."
                                                                (point))))
 
                        ((and bad-box (string-match "\\\\vbox" warning))
-                       ;; Vertical bad boxes don't provide any additional
-                       ;; information.  In this case, reuse the `warning' as
-                       ;; `context' and don't move point, so that we avoid
-                       ;; eating the next line that may contain another
-                       ;; warning.
+                        ;; Vertical bad boxes don't provide any additional
+                        ;; information.  In this case, reuse the `warning' as
+                        ;; `context' and don't move point, so that we avoid
+                        ;; eating the next line that may contain another
+                        ;; warning.  See also comment for `context-start'.
                         (concat "\n" warning))
 
                        (t