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b2/lang.l: reset lineno for new file and count newlines in comment

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This commit is contained in:
Werner Almesberger 2012-04-28 11:51:47 -03:00
parent 90e541cd7a
commit 98f2fc8337
1 changed files with 6 additions and 2 deletions
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8
b2/lang.l
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@ -24,13 +24,14 @@ extern int yyparse(void);
static int start_token; static int start_token;
static int expose_nl; static int expose_nl;
static int lineno = 1; static int lineno;
void parse_hierarchy(void) void parse_hierarchy(void)
{ {
start_token = START_HIERARCHY; start_token = START_HIERARCHY;
expose_nl = 0; expose_nl = 0;
lineno = 1;
yyparse(); yyparse();
} }
@ -39,6 +40,7 @@ void parse_characteristics(void)
{ {
start_token = START_CHAR; start_token = START_CHAR;
expose_nl = 1; expose_nl = 1;
lineno = 1;
yyparse(); yyparse();
} }
@ -62,7 +64,9 @@ void parse_characteristics(void)
">=" return TOK_GE; ">=" return TOK_GE;
"//"[^\n]* ; "//"[^\n]* ;
"/*"([^*]|("*"+([^*/])))*"*"+"/" ; "/*"([^*]|("*"+([^*/])))*"*"+"/" { const char *s = yytext;
while (*s)
lineno += *s++ == '\n'; }
[ \t] ; [ \t] ;
\n { lineno++; \n { lineno++;