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Take multiple source files on the command line.

This commit is contained in:
steve 1999-09-05 22:33:18 +00:00
parent 8f68a07476
commit 006a2cce83
3 changed files with 76 additions and 12 deletions
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7
ivlpp/globals.h
View File

@ -19,12 +19,12 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT)
#ident "$Id: globals.h,v 1.1 1999/07/03 20:03:47 steve Exp $"
#ident "$Id: globals.h,v 1.2 1999/09/05 22:33:18 steve Exp $"
#endif
# include <stdio.h>
extern void reset_lexor(FILE*out, const char*ipath);
extern void reset_lexor(FILE*out, char*paths[]);
extern void define_macro(const char*name, const char*value);
/* These variables contain the include directories to be searched when
@ -40,6 +40,9 @@ extern int yyparse();
/*
* $Log: globals.h,v $
* Revision 1.2 1999/09/05 22:33:18 steve
* Take multiple source files on the command line.
*
* Revision 1.1 1999/07/03 20:03:47 steve
* Add include path and line directives.
*

67
ivlpp/lexor.lex
View File

@ -19,7 +19,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT)
#ident "$Id: lexor.lex,v 1.11 1999/07/25 00:03:13 steve Exp $"
#ident "$Id: lexor.lex,v 1.12 1999/09/05 22:33:18 steve Exp $"
#endif
# include <stdio.h>
@ -60,6 +60,7 @@ struct include_stack_t {
struct include_stack_t*next;
};
static struct include_stack_t*file_queue = 0;
static struct include_stack_t*istack = 0;
static struct include_stack_t*standby = 0;
@ -469,12 +470,18 @@ static void do_include()
fprintf(yyout, "#line \"%s\" %u\n", istack->path, istack->lineno);
}
/*
* The lexical analyzer calls this function when the current file
* ends. Here I pop the include stack and resume the previous file. If
* there is no previous file, then the main input is ended.
*/
static int yywrap()
{
int line_mask_flag = 0;
struct include_stack_t*isp = istack;
istack = isp->next;
/* Delete the current input buffers, and free the cell. */
yy_delete_buffer(YY_CURRENT_BUFFER);
if (isp->file) {
fclose(isp->file);
@ -492,13 +499,41 @@ static int yywrap()
}
free(isp);
if (istack == 0)
return 1;
/* If I am out if include stack, the main input is
done. Look for another file to process in the input
queue. If none are there, give up. Otherwise, open the file
and continue parsing. */
if (istack == 0) {
if (file_queue == 0)
return 1;
istack = file_queue;
file_queue = file_queue->next;
istack->next = 0;
istack->lineno = 0;
istack->file = fopen(istack->path, "r");
if (istack->file == 0) {
perror(istack->path);
exit(1);
}
if (line_direct_flag)
fprintf(yyout, "#line \"%s\" 0\n", istack->path);
yyrestart(isp->file);
return 0;
}
/* Otherwise, resume the input buffer that is the new stack
top. If I need to print a line directive, do so. */
yy_switch_to_buffer(istack->yybs);
if (line_direct_flag && istack->path && !line_mask_flag)
fprintf(yyout, "#line \"%s\" %u\n", istack->path, istack->lineno);
return 0;
}
@ -507,14 +542,16 @@ static int yywrap()
* opened, and the lexor is initialized. The include stack is cleared
* and ready to go.
*/
void reset_lexor(FILE*out, const char*path)
void reset_lexor(FILE*out, char*paths[])
{
unsigned idx;
struct include_stack_t*tail = 0;
struct include_stack_t*isp = malloc(sizeof(struct include_stack_t));
isp->path = strdup(path);
isp->file = fopen(path, "r");
isp->path = strdup(paths[0]);
isp->file = fopen(paths[0], "r");
isp->str = 0;
if (isp->file == 0) {
perror(path);
perror(paths[0]);
exit(1);
}
@ -525,4 +562,20 @@ void reset_lexor(FILE*out, const char*path)
assert(istack == 0);
istack = isp;
isp->next = 0;
/* Now build up a queue of all the remaining file names, so
that yywrap can pull them when needed. */
file_queue = 0;
for (idx = 1 ; paths[idx] ; idx += 1) {
isp = malloc(sizeof(struct include_stack_t));
isp->path = strdup(paths[idx]);
isp->str = 0;
isp->next = 0;
if (tail)
tail->next = isp;
else
file_queue = isp;
tail = isp;
}
}

14
ivlpp/main.c
View File

@ -17,7 +17,7 @@ const char COPYRIGHT[] =
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT)
#ident "$Id: main.c,v 1.2 1999/07/03 20:03:47 steve Exp $"
#ident "$Id: main.c,v 1.3 1999/09/05 22:33:18 steve Exp $"
#endif
const char NOTICE[] =
@ -109,7 +109,7 @@ int main(int argc, char*argv[])
flag_errors += 1;
if (flag_errors) {
fprintf(stderr, "\nUsage: %s [-v][-L][-I<dir>][-D<def>] <file>\n"
fprintf(stderr, "\nUsage: %s [-v][-L][-I<dir>][-D<def>] <file>...\n"
" -D<def> - Predefine a value.\n"
" -I<dir> - Add an include file search directory\n"
" -L - Emit line number directives\n"
@ -129,12 +129,20 @@ int main(int argc, char*argv[])
out = stdout;
}
reset_lexor(out, argv[optind]);
if (argv[optind] == 0) {
fprintf(stderr, "%s: No input files given.\n", argv[0]);
return 1;
}
reset_lexor(out, argv+optind);
return yyparse();
}
/*
* $Log: main.c,v $
* Revision 1.3 1999/09/05 22:33:18 steve
* Take multiple source files on the command line.
*
* Revision 1.2 1999/07/03 20:03:47 steve
* Add include path and line directives.
*