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errors: introduce the -Werror=CATEGORY option

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This new option is a lot more flexible than the previous one. Its
details will be discussed in the NEWS and info file, in a forthcoming
change.

If no category is specified (ie: used as simply "-Werror"), the
functionality is the same as before.

* src/complain.c (errors_flag): New variable.
(set_warning_issued): Accept warning categories as an argument.
* src/complain.h (Wall): Better definition.
* src/getargs.c (flags_argmatch): Support for the new format.
(usage): Update -Werror to -Werror[=CATEGORY] format.

* src/complain.c (errors_flag): New variable.
(set_warning_issued): Accept warning categories as an argument.
* src/complain.h (Wall): Better definition.
* src/getargs.c (flags_argmatch): Support for the new format.
(usage): Update -Werror to -Werror=[CATEGORY] format.

Signed-off-by: Akim Demaille <akim@lrde.epita.fr>
This commit is contained in:
Theophile Ranquet
2012-09-27 10:52:45 +00:00
committed by Akim Demaille
parent 11b192127c
commit 9503b0a4a8
4 changed files with 45 additions and 25 deletions
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39
src/getargs.c
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@@ -87,9 +87,17 @@ flags_argmatch (const char *option,
args = strtok (args, ",");
while (args)
{
int value = all;
int *save_flags = flags;
int no = STRPREFIX_LIT ("no-", args) ? 3 : 0;
int value = XARGMATCH (option, args + no, keys, values);
if (value == 0)
int err = STRPREFIX_LIT ("error", args + no) ? 5 : 0;
if (err)
flags = &errors_flag;
if (!err || args[no + err++] != '\0')
value = XARGMATCH (option, args + no + err, keys, values);
if (!value)
{
if (no)
*flags |= all;
@@ -101,8 +109,13 @@ flags_argmatch (const char *option,
if (no)
*flags &= ~value;
else
*flags |= value;
{
if (err)
warnings_flag |= value;
*flags |= value;
}
}
flags = save_flags;
args = strtok (NULL, ",");
}
}
@@ -322,16 +335,16 @@ Output:\n\
fputs (_("\
Warning categories include:\n\
`midrule-values' unset or unused midrule values\n\
`yacc' incompatibilities with POSIX Yacc\n\
`conflicts-sr' S/R conflicts (enabled by default)\n\
`conflicts-rr' R/R conflicts (enabled by default)\n\
`deprecated' obsolete constructs\n\
`other' all other warnings (enabled by default)\n\
`all' all the warnings\n\
`no-CATEGORY' turn off warnings in CATEGORY\n\
`none' turn off all the warnings\n\
`error' treat warnings as errors\n\
`midrule-values' unset or unused midrule values\n\
`yacc' incompatibilities with POSIX Yacc\n\
`conflicts-sr' S/R conflicts (enabled by default)\n\
`conflicts-rr' R/R conflicts (enabled by default)\n\
`deprecated' obsolete constructs\n\
`other' all other warnings (enabled by default)\n\
`all' all the warnings\n\
`no-CATEGORY' turn off warnings in CATEGORY\n\
`none' turn off all the warnings\n\
`error[=CATEGORY]' treat warnings as errors\n\
"), stdout);
putc ('\n', stdout);