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b2/: run variable substitution on BOM entries (untested)

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This commit is contained in:
Werner Almesberger 2012-05-23 18:13:26 -03:00
parent 4fb17f6e95
commit ec04163f44
3 changed files with 62 additions and 1 deletions
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50
b2/bom.c
View File

@ -13,9 +13,14 @@
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <assert.h>
#include "util.h"
#include "lang.h"
#include "relop.h"
#include "param.h"
#include "subst.h"
#include "subex.h"
#include "bom.h"
@ -61,6 +66,7 @@ struct bom *bom_parse_line(const char *s)
b->sym = NULL;
b->fields = NULL;
b->n_fields = 0;
b->vars = 0;
for (s = t; *t && *t != '\n'; s = t+1) {
while (*s == ' ' || *s == '\t')
@ -99,3 +105,47 @@ void bom_set_sym(const char *ref, const char *sym)
yyerrorf("symbol is already set in \"%s\"", ref);
b->sym = sym;
}
static void add_var(struct param ***last, struct param *var)
{
**last = var;
*last = &var->next;
}
int bom_subst(struct bom *b, const struct subst *sub)
{
char tmp[4];
struct param *vars = NULL, **last = &vars;
struct param *out;
int i, res;
/* must be last, for removal with n_bom-- to work */
assert(b == bom+n_bom-1);
/* set input variables */
add_var(&last, make_var("REF", rel_eq, b->ref));
if (b->n_fields && *b->fields[0])
add_var(&last, make_var("VAL", rel_eq, b->fields[0]));
if (b->n_fields > 1 && *b->fields[1])
add_var(&last, make_var("FP", rel_eq, b->fields[1]));
else
yywarnf("\"%s\" has no footprint", b->ref);
for (i = 2; i != b->n_fields; i++)
if (*b->fields[i]) {
sprintf(tmp, "F%d", i-1);
add_var(&last, make_var(tmp, rel_eq, b->fields[i]));
}
if (b->sym)
add_var(&last, make_var("SYM", rel_eq, b->sym));
/* run substitutions */
res = substitute(sub, vars, &out);
free_vars(vars);
if (res)
b->vars = out;
else
n_bom--;
return res;
}

2
b2/bom.h
View File

@ -14,6 +14,7 @@
#define BOM_H
#include "param.h"
#include "subst.h"
struct bom {
@ -30,5 +31,6 @@ extern int n_bom;
struct bom *bom_parse_line(const char *s);
void bom_set_sym(const char *ref, const char *sym);
int bom_subst(struct bom *b, const struct subst *sub);
#endif /* !BOM_H */

11
b2/lang.l
View File

@ -103,6 +103,15 @@ void parse_symbols(const char *name)
do_parse(name, START_SYMBOLS, 1, 0);
}
static void process_bom_line(const char *s)
{
struct bom *b;
b = bom_parse_line(s);
bom_subst(b, substitutions);
}
%}
@ -138,7 +147,7 @@ PAT "\\"[^\t\n]|[^ \t\n\\]
<BOM>"eeschema \("[^\n]* { hash = 0;
return BOM_EESCHEMA; }
<BOM>"|"[^\n]* { if (hash == 1)
bom_parse_line(yytext); }
process_bom_line(yytext); }
<BOM>"#End Cmp" { YY_FLUSH_BUFFER;
return 0; }
<BOM>#[^\n]* hash++;