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reader: reduce the "scope" of global variables

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We have too many global variables, adding structure would help.  For a
start, let's hide some of the variables closer to their usage.

* src/getargs.c, src/files.h (current_file): Move to...
* src/scan-gram.c: here.
* src/scan-gram.h (gram_in, gram__flex_debug): Remove, make them
private to the scanner.
* src/reader.h, src/reader.c (reader): Take a grammar file as argument.
Move the handling of scanner variables to...
* src/scan-gram.l (gram_scanner_open, gram_scanner_close): here.
(gram_scanner_initialize): Remove, replaced by gram_scanner_open.
* src/main.c: Adjust.
This commit is contained in:
Akim Demaille
2019-10-22 09:03:00 +02:00
parent a5fc4e3b44
commit 8228d96d33
8 changed files with 30 additions and 34 deletions
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src/reader.h
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@@ -60,7 +60,7 @@ void grammar_current_rule_action_append (const char *action, location loc,
named_ref *nref, uniqstr tag);
/* Attach a PREDICATE to the current rule. */
void grammar_current_rule_predicate_append (const char *predicate, location loc);
void reader (void);
void reader (const char *gram);
void free_merger_functions (void);
extern merger_list *merge_functions;