tests: strengthen the trailing spaces check

[bison.git] / tests / synclines.at

diff --git a/tests/synclines.at b/tests/synclines.at
index d7220c785245872a8470f124e0ec31303065fabd..e2b7005d95fae1a41225aad41eae626d175854cb 100644 (file)
--- a/tests/synclines.at
+++ b/tests/synclines.at
@@ -1,6 +1,6 @@
 # Executing Actions.                               -*- Autotest -*-
 
-# Copyright (C) 2002, 2004, 2005, 2007, 2009, 2010 Free Software
+# Copyright (C) 2002, 2004-2005, 2007, 2009-2012 Free Software
 # Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
@@ -27,6 +27,11 @@ AT_BANNER([[User Actions.]])
 # errors.
 m4_define([AT_SYNCLINES_COMPILE],
 [AT_CHECK([$CC $CFLAGS $CPPFLAGS -c $1], [ignore], [], [stderr])
+
+# Transform stderr into something like this:
+#
+#   input.y:4: #error "4"
+#
 # In case GCC displays column information, strip it down.
 #
 #   input.y:4:2: #error "4"    or
@@ -42,6 +47,11 @@ m4_define([AT_SYNCLINES_COMPILE],
 # =>
 #   input.y:4: #error "8"
 #
+# The message may include a caret-error:
+#
+#   input.y:1:2: error: #error "1"
+#    #error "1"
+#     ^
 #
 # And possibly distcc adds its bits.
 #
@@ -54,21 +64,24 @@ m4_define([AT_SYNCLINES_COMPILE],
 #   distcc[35882] (dcc_connect_by_name) ERROR: failed to look up host "chrisimac": Unknown host
 #   distcc[35882] Warning: failed to distribute input.c to chrisimac/4, running locally instead
 
-AT_CHECK([[sed -e '/^distcc\[[0-9]*\] /d'                            \
-               -e 's/^\([^:]*:[^:.]*\)[.:][^:]*:\(.*\)$/\1:\2/'      \
-               -e 's/^\([^:]*:[^:]*:\)[^@%:@]*\( @%:@error\)/\1\2/'  \
-               -e "/^[^:]*: In function '[^\']*':$/d"                \
-            stderr]],
-         0, [stdout])
+AT_CHECK([[perl -p -0777 - stderr <<\EOF
+  s/^distcc\[\d+\] .*\n//gm;
+  s/^([^:]+:\d+)[.:][^:]+:(.+)$/$][1:$][2/gm;
+  s/^([^:]+:\d+):[^#]*( #error)/$][1:$][2/gm;
+  s/^[^:]*: In function '[^']+':\n//gm;
+  s/^\ +#error.*\n\ *\^\n//gm;
+EOF
+]],
+  0, [stdout])
 ])
 
-# AT_TEST_SYNCLINE(TITLE, INPUT, ERROR-MSG)
-# -----------------------------------------
+# AT_TEST(TITLE, INPUT, ERROR-MSG)
+# --------------------------------
 # Check that compiling the parser produced from INPUT cause GCC
 # to issue ERROR-MSG.
-m4_define([AT_TEST_SYNCLINE],
+m4_pushdef([AT_TEST],
 [AT_SETUP([$1])
-
+AT_BISON_OPTION_PUSHDEFS
 # It seems impossible to find a generic scheme to check the location
 # of an error.  Even requiring GCC is not sufficient, since for instance
 # the version modified by Apple:
@@ -88,6 +101,7 @@ m4_define([AT_TEST_SYNCLINE],
 
 AT_DATA([syncline.c],
 [[#error "1"
+int i; // avoids -pedantic warning about an empty translation unit
 ]])
 
 AT_SYNCLINES_COMPILE([syncline.c])
@@ -97,56 +111,59 @@ AT_DATA([[input.y]], [$2])
 AT_BISON_CHECK([-o input.c input.y])
 AT_SYNCLINES_COMPILE([input.c])
 AT_CHECK([cat stdout], 0, [$3])
+AT_BISON_OPTION_POPDEFS
 AT_CLEANUP
 ])
 
 
-## --------------------- ##
-## Prologue synch line.  ##
-## --------------------- ##
+## ------------------- ##
+## Prologue syncline.  ##
+## ------------------- ##
 
 
-AT_TEST_SYNCLINE([Prologue synch line],
+AT_TEST([Prologue syncline],
 [[%{
 #error "2"
-void yyerror (const char *s);
-int yylex (void);
+]AT_YYERROR_DECLARE_EXTERN[
+]AT_YYLEX_DECLARE_EXTERN[
 %}
 %%
 exp: '0';
+%%
 ]],
 [input.y:2: #error "2"
 ])
 
 
-## ------------------- ##
-## %union synch line.  ##
-## ------------------- ##
+## ----------------- ##
+## %union syncline.  ##
+## ----------------- ##
 
-AT_TEST_SYNCLINE([%union synch line],
+AT_TEST([%union syncline],
 [[%union {
 #error "2"
   char dummy;
 }
 %{
-void yyerror (const char *s);
-int yylex (void);
+]AT_YYERROR_DECLARE_EXTERN[
+]AT_YYLEX_DECLARE_EXTERN[
 %}
 %%
 exp: '0';
+%%
 ]],
 [input.y:2: #error "2"
 ])
 
 
-## ------------------------- ##
-## Postprologue synch line.  ##
-## ------------------------- ##
+## ----------------------- ##
+## Postprologue syncline.  ##
+## ----------------------- ##
 
-AT_TEST_SYNCLINE([Postprologue synch line],
+AT_TEST([Postprologue syncline],
 [[%{
-void yyerror (const char *s);
-int yylex (void);
+]AT_YYERROR_DECLARE_EXTERN[
+]AT_YYLEX_DECLARE_EXTERN[
 %}
 %union
 {
@@ -157,19 +174,20 @@ int yylex (void);
 %}
 %%
 exp: '0';
+%%
 ]],
 [input.y:10: #error "10"
 ])
 
 
-## ------------------- ##
-## Action synch line.  ##
-## ------------------- ##
+## ----------------- ##
+## Action syncline.  ##
+## ----------------- ##
 
-AT_TEST_SYNCLINE([Action synch line],
+AT_TEST([Action syncline],
 [[%{
-void yyerror (const char *s);
-int yylex (void);
+]AT_YYERROR_DECLARE_EXTERN[
+]AT_YYLEX_DECLARE_EXTERN[
 %}
 %%
 exp:
@@ -181,14 +199,14 @@ exp:
 ])
 
 
-## --------------------- ##
-## Epilogue synch line.  ##
-## --------------------- ##
+## ------------------- ##
+## Epilogue syncline.  ##
+## ------------------- ##
 
-AT_TEST_SYNCLINE([Epilogue synch line],
+AT_TEST([Epilogue syncline],
 [[%{
-void yyerror (const char *s);
-int yylex (void);
+]AT_YYERROR_DECLARE_EXTERN[
+]AT_YYLEX_DECLARE_EXTERN[
 %}
 %%
 exp: '0';
@@ -197,3 +215,5 @@ exp: '0';
 ]],
 [input.y:8: #error "8"
 ])
+
+m4_popdef([AT_TEST])