procyberian/gcc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Spelling suggestions for misspelled preprocessor directives

Browse source 
This patch allows the preprocessor to offer suggestions for misspelled
directives, taking us from e.g.:

test.c:5:2: error: invalid preprocessing directive #endfi
 #endfi
  ^~~~~

to:

test.c:5:2: error: invalid preprocessing directive #endfi; did you mean #endif?
 #endfi
  ^~~~~
  endif

gcc/c-family/ChangeLog:
	* c-common.c: Include "spellcheck.h".
	(cb_get_suggestion): New function.
	* c-common.h (cb_get_suggestion): New decl.
	* c-lex.c (init_c_lex): Initialize cb->get_suggestion to
	cb_get_suggestion.

gcc/testsuite/ChangeLog:
	* gcc.dg/cpp/misspelled-directive-1.c: New testcase.
	* gcc.dg/cpp/misspelled-directive-2.c: New testcase.

libcpp/ChangeLog:
	* directives.c (directive_names): New array.
	(_cpp_handle_directive): Offer spelling suggestions for misspelled
	directives.
	* errors.c (cpp_diagnostic_at_richloc): New function.
	(cpp_error_at_richloc): New function.
	* include/cpplib.h (struct cpp_callbacks): Add field
	"get_suggestion".
	(cpp_error_at_richloc): New decl.

From-SVN: r239585
This commit is contained in:
David Malcolm 2016-08-18 18:52:43 +00:00 • committed by David Malcolm
parent a76989dc7c
commit cb18fd07f2
11 changed files with 163 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

8
libcpp/include/cpplib.h
View file

@ -597,6 +597,9 @@ struct cpp_callbacks
/* Callback to parse SOURCE_DATE_EPOCH from environment. */
time_t (*get_source_date_epoch) (cpp_reader *);
/* Callback for providing suggestions for misspelled directives. */
const char *(*get_suggestion) (cpp_reader *, const char *, const char *const *);
};
#ifdef VMS
@ -1066,6 +1069,11 @@ extern bool cpp_error_at (cpp_reader * pfile, int level,
source_location src_loc, const char *msgid, ...)
ATTRIBUTE_PRINTF_4;
extern bool cpp_error_at_richloc (cpp_reader * pfile, int level,
rich_location *richloc, const char *msgid,
...)
ATTRIBUTE_PRINTF_4;
/* In lex.c */
extern int cpp_ideq (const cpp_token *, const char *);
extern void cpp_output_line (cpp_reader *, FILE *);