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Added -T option, to specify a template filename on the command line.

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The default is still "lempar.c", though.

FossilOrigin-Name: e6cbe1e5ee80db282a41951b805b7bd8b13adf28
This commit is contained in:
icculus
2010-02-14 00:48:49 +00:00
parent 1f4222f84c
commit 3e143bdfaf
3 changed files with 54 additions and 8 deletions
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26
tool/lemon.c
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@ -1429,6 +1429,14 @@ static void handle_D_option(char *z){
*z = 0;
}
static char *user_templatename = NULL;
static void handle_T_option(char *z){
user_templatename = malloc( lemonStrlen(z)+1 );
if( user_templatename==0 ){
memory_error();
}
strcpy(user_templatename, z);
}
/* The main program. Parse the command line and do it... */
int main(argc,argv)
@ -1447,6 +1455,7 @@ char **argv;
{OPT_FLAG, "b", (char*)&basisflag, "Print only the basis in report."},
{OPT_FLAG, "c", (char*)&compress, "Don't compress the action table."},
{OPT_FSTR, "D", (char*)handle_D_option, "Define an %ifdef macro."},
{OPT_FSTR, "T", (char*)handle_T_option, "Specify a template file."},
{OPT_FLAG, "g", (char*)&rpflag, "Print grammar without actions."},
{OPT_FLAG, "m", (char*)&mhflag, "Output a makeheaders compatible file."},
{OPT_FLAG, "l", (char*)&nolinenosflag, "Do not print #line statements."},
@ -3112,6 +3121,23 @@ struct lemon *lemp;
char *tpltname;
char *cp;
/* first, see if user specified a template filename on the command line. */
if (user_templatename != 0) {
if( access(user_templatename,004)==-1 ){
fprintf(stderr,"Can't find the parser driver template file \"%s\".\n",
user_templatename);
lemp->errorcnt++;
return 0;
}
in = fopen(user_templatename,"rb");
if( in==0 ){
fprintf(stderr,"Can't open the template file \"%s\".\n",user_templatename);
lemp->errorcnt++;
return 0;
}
return in;
}
cp = strrchr(lemp->filename,'.');
if( cp ){
sprintf(buf,"%.*s.lt",(int)(cp-lemp->filename),lemp->filename);