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errors: show carets

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* src/locations.c (caret_info): New, persistant information useful
for...
(location_caret): New, print a caret.
(cleanup_caret): Release caret_info cleanly, call it...
* src/main.c (main): Here.
* src/complain.c (error_message): Call location_caret here.
This commit is contained in:
Theophile Ranquet
2012-11-30 14:34:56 +01:00
parent 0db2648930
commit 3f5d1b2c67
6 changed files with 110 additions and 9 deletions
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7
src/location.h
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@@ -102,6 +102,13 @@ void location_compute (location *loc,
characters. */
unsigned location_print (FILE *out, location loc);
/* Free any allocated ressources and close any open file handles that are
left-over by the usage of location_caret. */
void cleanup_caret (void);
/* Output to OUT the line and caret corresponding to location LOC. */
void location_caret (FILE *out, location loc);
/* Return -1, 0, 1, depending whether a is before, equal, or
after b. */
static inline int