add simple command+option compiler
git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@13969 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Johan Danielsson
@@ -25,10 +25,13 @@ libss_la_SOURCES = $(libsl_la_SOURCES) ss.c ss.h
|
||||
# install these?
|
||||
|
||||
bin_PROGRAMS = mk_cmds
|
||||
noinst_PROGRAMS = slc
|
||||
|
||||
mk_cmds_SOURCES = make_cmds.c make_cmds.h parse.y lex.l
|
||||
mk_cmds_LDADD = libsl.la $(LDADD)
|
||||
|
||||
slc_SOURCES = slc-gram.y slc-lex.l slc.h
|
||||
|
||||
ssincludedir = $(includedir)/ss
|
||||
ssinclude_HEADERS = ss.h
|
||||
|
||||
|
||||
597
lib/sl/slc-gram.y
Normal file
597
lib/sl/slc-gram.y
Normal file
@@ -0,0 +1,597 @@
|
||||
%{
|
||||
/*
|
||||
* Copyright (c) 2004 Kungliga Tekniska H<>gskolan
|
||||
* (Royal Institute of Technology, Stockholm, Sweden).
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
/* $Id$ */
|
||||
|
||||
#include <stdio.h>
|
||||
#include <err.h>
|
||||
#include <ctype.h>
|
||||
#include <limits.h>
|
||||
#include <getarg.h>
|
||||
|
||||
#include "slc.h"
|
||||
extern FILE *yyin;
|
||||
extern struct assignment *a;
|
||||
%}
|
||||
|
||||
%union {
|
||||
char *string;
|
||||
struct assignment *assignment;
|
||||
}
|
||||
|
||||
%token <string> LITERAL
|
||||
%token <string> STRING
|
||||
%type <assignment> assignment assignments
|
||||
|
||||
%start start
|
||||
|
||||
%%
|
||||
|
||||
start : assignments
|
||||
{
|
||||
a = $1;
|
||||
}
|
||||
;
|
||||
|
||||
assignments : assignment assignments
|
||||
{
|
||||
$1->next = $2;
|
||||
$$ = $1;
|
||||
}
|
||||
| assignment
|
||||
;
|
||||
|
||||
assignment : LITERAL '=' STRING
|
||||
{
|
||||
$$ = malloc(sizeof(*$$));
|
||||
$$->name = $1;
|
||||
$$->type = a_value;
|
||||
$$->lineno = lineno;
|
||||
$$->u.value = $3;
|
||||
$$->next = NULL;
|
||||
}
|
||||
| LITERAL '=' '{' assignments '}'
|
||||
{
|
||||
$$ = malloc(sizeof(*$$));
|
||||
$$->name = $1;
|
||||
$$->type = a_assignment;
|
||||
$$->lineno = lineno;
|
||||
$$->u.assignment = $4;
|
||||
$$->next = NULL;
|
||||
}
|
||||
;
|
||||
|
||||
%%
|
||||
char *filename;
|
||||
FILE *cfile, *hfile;
|
||||
int error_flag;
|
||||
struct assignment *a;
|
||||
|
||||
|
||||
static void
|
||||
ex(struct assignment *a, const char *msg)
|
||||
{
|
||||
fprintf(stderr, "%s:%d: %s\n", a->name, a->lineno, msg);
|
||||
}
|
||||
|
||||
|
||||
|
||||
static int
|
||||
check_option(struct assignment *as)
|
||||
{
|
||||
struct assignment *a;
|
||||
int seen_long = 0;
|
||||
int seen_short = 0;
|
||||
int seen_type = 0;
|
||||
int seen_argument = 0;
|
||||
int seen_help = 0;
|
||||
int seen_default = 0;
|
||||
int ret = 0;
|
||||
|
||||
for(a = as; a != NULL; a = a->next) {
|
||||
if(strcmp(a->name, "long") == 0)
|
||||
seen_long++;
|
||||
else if(strcmp(a->name, "short") == 0)
|
||||
seen_short++;
|
||||
else if(strcmp(a->name, "type") == 0)
|
||||
seen_type++;
|
||||
else if(strcmp(a->name, "argument") == 0)
|
||||
seen_argument++;
|
||||
else if(strcmp(a->name, "help") == 0)
|
||||
seen_help++;
|
||||
else if(strcmp(a->name, "default") == 0)
|
||||
seen_default++;
|
||||
else {
|
||||
ex(a, "unknown name");
|
||||
ret++;
|
||||
}
|
||||
}
|
||||
if(seen_long == 0 && seen_short == 0) {
|
||||
ex(as, "neither long nor short option");
|
||||
ret++;
|
||||
}
|
||||
if(seen_long > 1) {
|
||||
ex(as, "multiple long options");
|
||||
ret++;
|
||||
}
|
||||
if(seen_short > 1) {
|
||||
ex(as, "multiple short options");
|
||||
ret++;
|
||||
}
|
||||
if(seen_type > 1) {
|
||||
ex(as, "multiple types");
|
||||
ret++;
|
||||
}
|
||||
if(seen_argument > 1) {
|
||||
ex(as, "multiple arguments");
|
||||
ret++;
|
||||
}
|
||||
if(seen_help > 1) {
|
||||
ex(as, "multiple help strings");
|
||||
ret++;
|
||||
}
|
||||
if(seen_default > 1) {
|
||||
ex(as, "multiple default values");
|
||||
ret++;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int
|
||||
check_command(struct assignment *as)
|
||||
{
|
||||
struct assignment *a;
|
||||
int seen_name = 0;
|
||||
int seen_function = 0;
|
||||
int seen_help = 0;
|
||||
int seen_argument = 0;
|
||||
int ret = 0;
|
||||
for(a = as; a != NULL; a = a->next) {
|
||||
if(strcmp(a->name, "name") == 0)
|
||||
seen_name++;
|
||||
else if(strcmp(a->name, "function") == 0) {
|
||||
seen_function++;
|
||||
} else if(strcmp(a->name, "option") == 0)
|
||||
ret += check_option(a->u.assignment);
|
||||
else if(strcmp(a->name, "help") == 0) {
|
||||
seen_help++;
|
||||
} else if(strcmp(a->name, "argument") == 0) {
|
||||
seen_argument++;
|
||||
} else {
|
||||
ex(a, "unknown name");
|
||||
ret++;
|
||||
}
|
||||
}
|
||||
if(seen_name == 0) {
|
||||
ex(as, "no command name");
|
||||
ret++;
|
||||
}
|
||||
if(seen_function > 1) {
|
||||
ex(as, "multiple function names");
|
||||
ret++;
|
||||
}
|
||||
if(seen_help > 1) {
|
||||
ex(as, "multiple help strings");
|
||||
ret++;
|
||||
}
|
||||
if(seen_argument > 1) {
|
||||
ex(as, "multiple argument strings");
|
||||
ret++;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int
|
||||
check(struct assignment *as)
|
||||
{
|
||||
struct assignment *a;
|
||||
int ret = 0;
|
||||
for(a = as; a != NULL; a = a->next) {
|
||||
if(strcmp(a->name, "command")) {
|
||||
fprintf(stderr, "unknown type %s line %d\n", a->name, a->lineno);
|
||||
ret++;
|
||||
continue;
|
||||
}
|
||||
if(a->type != a_assignment) {
|
||||
fprintf(stderr, "bad command definition %s line %d\n", a->name, a->lineno);
|
||||
ret++;
|
||||
continue;
|
||||
}
|
||||
ret += check_command(a->u.assignment);
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
static struct assignment *
|
||||
find_next(struct assignment *as, const char *name)
|
||||
{
|
||||
for(as = as->next; as != NULL; as = as->next) {
|
||||
if(strcmp(as->name, name) == 0)
|
||||
return as;
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static struct assignment *
|
||||
find(struct assignment *as, const char *name)
|
||||
{
|
||||
for(; as != NULL; as = as->next) {
|
||||
if(strcmp(as->name, name) == 0)
|
||||
return as;
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static void
|
||||
space(FILE *f, int level)
|
||||
{
|
||||
fprintf(f, "%*.*s", level * 4, level * 4, " ");
|
||||
}
|
||||
|
||||
static void
|
||||
cprint(int level, const char *fmt, ...)
|
||||
{
|
||||
va_list ap;
|
||||
va_start(ap, fmt);
|
||||
space(cfile, level);
|
||||
vfprintf(cfile, fmt, ap);
|
||||
va_end(ap);
|
||||
}
|
||||
|
||||
static void
|
||||
hprint(int level, const char *fmt, ...)
|
||||
{
|
||||
va_list ap;
|
||||
va_start(ap, fmt);
|
||||
space(hfile, level);
|
||||
vfprintf(hfile, fmt, ap);
|
||||
va_end(ap);
|
||||
}
|
||||
|
||||
static void gen_name(char *str);
|
||||
|
||||
static void
|
||||
gen_command(struct assignment *as)
|
||||
{
|
||||
struct assignment *a, *b;
|
||||
char *f;
|
||||
a = find(as, "name");
|
||||
f = strdup(a->u.value);
|
||||
gen_name(f);
|
||||
cprint(1, " { ");
|
||||
fprintf(cfile, "\"%s\", ", a->u.value);
|
||||
fprintf(cfile, "%s_wrap, ", f);
|
||||
b = find(as, "argument");
|
||||
if(b)
|
||||
fprintf(cfile, "\"%s %s\", ", a->u.value, b->u.value);
|
||||
else
|
||||
fprintf(cfile, "\"%s\", ", a->u.value);
|
||||
b = find(as, "help");
|
||||
if(b)
|
||||
fprintf(cfile, "\"%s\"", b->u.value);
|
||||
else
|
||||
fprintf(cfile, "NULL");
|
||||
fprintf(cfile, " },\n");
|
||||
for(a = a->next; a != NULL; a = a->next)
|
||||
if(strcmp(a->name, "name") == 0)
|
||||
cprint(1, " { \"%s\" },\n", a->u.value);
|
||||
cprint(0, "\n");
|
||||
}
|
||||
|
||||
static void
|
||||
gen_name(char *str)
|
||||
{
|
||||
char *p;
|
||||
for(p = str; *p != '\0'; p++)
|
||||
if(!isalnum(*p))
|
||||
*p = '_';
|
||||
}
|
||||
|
||||
static char *
|
||||
make_name(struct assignment *as)
|
||||
{
|
||||
struct assignment *lopt;
|
||||
struct assignment *type;
|
||||
char *s;
|
||||
|
||||
lopt = find(as, "long");
|
||||
if(lopt == NULL)
|
||||
lopt = find(as, "name");
|
||||
if(lopt == NULL)
|
||||
return NULL;
|
||||
|
||||
type = find(as, "type");
|
||||
asprintf(&s, "%s_%s", lopt->u.value, type->u.value);
|
||||
gen_name(s);
|
||||
return s;
|
||||
}
|
||||
|
||||
static void
|
||||
gen_options(struct assignment *opt1, const char *name)
|
||||
{
|
||||
struct assignment *tmp;
|
||||
|
||||
hprint(0, "struct %s_options {\n", name);
|
||||
|
||||
for(tmp = opt1;
|
||||
tmp != NULL;
|
||||
tmp = find_next(tmp, "option")) {
|
||||
struct assignment *type;
|
||||
char *s;
|
||||
|
||||
s = make_name(tmp->u.assignment);
|
||||
type = find(tmp->u.assignment, "type");
|
||||
if(strcmp(type->u.value, "string") == 0)
|
||||
hprint(1, "char *%s;\n", s);
|
||||
else if(strcmp(type->u.value, "integer") == 0)
|
||||
hprint(1, "int %s;\n", s);
|
||||
else if(strcmp(type->u.value, "flag") == 0)
|
||||
hprint(1, "int %s;\n", s);
|
||||
else
|
||||
abort();
|
||||
free(s);
|
||||
}
|
||||
hprint(0, "};\n");
|
||||
}
|
||||
|
||||
static void
|
||||
gen_wrapper(struct assignment *as)
|
||||
{
|
||||
struct assignment *name;
|
||||
struct assignment *arg;
|
||||
struct assignment *opt1;
|
||||
struct assignment *function;
|
||||
struct assignment *tmp;
|
||||
char *f;
|
||||
int nargs = 0;
|
||||
|
||||
name = find(as, "name");
|
||||
arg = find(as, "argument");
|
||||
opt1 = find(as, "option");
|
||||
function = find(as, "function");
|
||||
if(function == NULL)
|
||||
function = name;
|
||||
f = strdup(name->u.value);
|
||||
gen_name(f);
|
||||
|
||||
if(opt1 != NULL) {
|
||||
gen_options(opt1, name->u.value);
|
||||
hprint(0, "int %s(struct %s_options*, int, char **);\n",
|
||||
function->u.value, name->u.value);
|
||||
} else {
|
||||
hprint(0, "int %s(void*, int, char **);\n",
|
||||
function->u.value);
|
||||
}
|
||||
|
||||
fprintf(cfile, "static int\n");
|
||||
fprintf(cfile, "%s_wrap(int argc, char **argv)\n", f);
|
||||
fprintf(cfile, "{\n");
|
||||
if(opt1 != NULL)
|
||||
cprint(1, "struct %s_options opt;\n", name->u.value);
|
||||
cprint(1, "int optind = 0;\n");
|
||||
cprint(1, "struct getargs args[] = {\n");
|
||||
for(tmp = find(as, "option");
|
||||
tmp != NULL;
|
||||
tmp = find_next(tmp, "option")) {
|
||||
struct assignment *type = find(tmp->u.assignment, "type");
|
||||
struct assignment *lopt = find(tmp->u.assignment, "long");
|
||||
struct assignment *sopt = find(tmp->u.assignment, "short");
|
||||
struct assignment *arg = find(tmp->u.assignment, "argument");
|
||||
struct assignment *help = find(tmp->u.assignment, "help");
|
||||
|
||||
cprint(2, "{ ");
|
||||
if(lopt)
|
||||
fprintf(cfile, "\"%s\", ", lopt->u.value);
|
||||
else
|
||||
fprintf(cfile, "NULL, ");
|
||||
if(sopt)
|
||||
fprintf(cfile, "'%c', ", *sopt->u.value);
|
||||
else
|
||||
fprintf(cfile, "0, ");
|
||||
if(strcmp(type->u.value, "string") == 0)
|
||||
fprintf(cfile, "arg_string, ");
|
||||
else if(strcmp(type->u.value, "integer") == 0)
|
||||
fprintf(cfile, "arg_integer, ");
|
||||
else if(strcmp(type->u.value, "flag") == 0)
|
||||
fprintf(cfile, "arg_flag, ");
|
||||
else
|
||||
abort();
|
||||
fprintf(cfile, "NULL, ");
|
||||
if(help)
|
||||
fprintf(cfile, "\"%s\", ", help->u.value);
|
||||
else
|
||||
fprintf(cfile, "NULL, ");
|
||||
if(arg)
|
||||
fprintf(cfile, "\"%s\"", arg->u.value);
|
||||
else
|
||||
fprintf(cfile, "NULL");
|
||||
fprintf(cfile, " },\n");
|
||||
}
|
||||
cprint(2, "{ \"help\", 'h', arg_flag, NULL, NULL, NULL }\n");
|
||||
cprint(1, "};\n");
|
||||
cprint(1, "int help_flag = 0;\n");
|
||||
|
||||
for(tmp = find(as, "option");
|
||||
tmp != NULL;
|
||||
tmp = find_next(tmp, "option")) {
|
||||
char *s;
|
||||
struct assignment *type = find(tmp->u.assignment, "type");
|
||||
|
||||
struct assignment *defval = find(tmp->u.assignment, "default");
|
||||
s = make_name(tmp->u.assignment);
|
||||
if(strcmp(type->u.value, "string") == 0) {
|
||||
if(defval != NULL)
|
||||
cprint(1, "opt.%s = \"%s\";\n", s, defval->u.value);
|
||||
else
|
||||
cprint(1, "opt.%s = NULL;\n", s);
|
||||
} else if(strcmp(type->u.value, "integer") == 0) {
|
||||
if(defval != NULL)
|
||||
cprint(1, "opt.%s = %s;\n", s, defval->u.value);
|
||||
else
|
||||
cprint(1, "opt.%s = 0;\n", s);
|
||||
} else if(strcmp(type->u.value, "flag") == 0) {
|
||||
if(defval != NULL)
|
||||
cprint(1, "opt.%s = %s;\n", s, defval->u.value);
|
||||
else
|
||||
cprint(1, "opt.%s = 0;\n", s);
|
||||
} else
|
||||
abort();
|
||||
free(s);
|
||||
}
|
||||
|
||||
for(tmp = find(as, "option");
|
||||
tmp != NULL;
|
||||
tmp = find_next(tmp, "option")) {
|
||||
char *s;
|
||||
s = make_name(tmp->u.assignment);
|
||||
cprint(1, "args[%d].value = &opt.%s;\n", nargs++, s);
|
||||
free(s);
|
||||
}
|
||||
cprint(1, "args[%d].value = &help_flag;\n", nargs++);
|
||||
cprint(1, "if(getarg(args, %d, argc, argv, &optind))\n", nargs);
|
||||
cprint(2, "goto usage;\n");
|
||||
|
||||
if(arg == NULL) {
|
||||
cprint(1, "if(optind < argc)\n");
|
||||
cprint(2, "goto usage;\n");
|
||||
}
|
||||
|
||||
cprint(1, "if(help_flag)\n");
|
||||
cprint(2, "goto usage;\n");
|
||||
|
||||
cprint(1, "return %s(%s, argc - optind, argv + optind);\n",
|
||||
function->u.value,
|
||||
opt1 ? "&opt": "NULL");
|
||||
cprint(0, "usage:\n");
|
||||
cprint(1, "arg_printusage (args, %d, \"%s\", \"%s\");\n", nargs,
|
||||
name->u.value, arg ? arg->u.value : "");
|
||||
cprint(1, "return 0;\n");
|
||||
cprint(0, "}\n");
|
||||
cprint(0, "\n");
|
||||
}
|
||||
|
||||
static void
|
||||
gen(struct assignment *as)
|
||||
{
|
||||
struct assignment *a;
|
||||
cprint(0, "#include <stdio.h>\n");
|
||||
cprint(0, "#include <getarg.h>\n");
|
||||
cprint(0, "#include <sl.h>\n");
|
||||
cprint(0, "#include \"kadmin-commands.h\"\n\n");
|
||||
|
||||
hprint(0, "#include <stdio.h>\n");
|
||||
hprint(0, "#include <sl.h>\n");
|
||||
hprint(0, "\n");
|
||||
|
||||
|
||||
for(a = as; a != NULL; a = a->next)
|
||||
gen_wrapper(a->u.assignment);
|
||||
|
||||
cprint(0, "SL_cmd commands[] = {\n");
|
||||
for(a = as; a != NULL; a = a->next)
|
||||
gen_command(a->u.assignment);
|
||||
cprint(1, "{ NULL }\n");
|
||||
cprint(0, "};\n");
|
||||
|
||||
hprint(0, "extern SL_cmd commands[];\n");
|
||||
}
|
||||
|
||||
int version_flag;
|
||||
int help_flag;
|
||||
struct getargs args[] = {
|
||||
{ "version", 0, arg_flag, &version_flag },
|
||||
{ "help", 0, arg_flag, &help_flag }
|
||||
};
|
||||
int num_args = sizeof(args) / sizeof(args[0]);
|
||||
|
||||
static void
|
||||
usage(int code)
|
||||
{
|
||||
arg_printusage(args, num_args, NULL, "command-table");
|
||||
exit(code);
|
||||
}
|
||||
|
||||
int
|
||||
main(int argc, char **argv)
|
||||
{
|
||||
char cname[PATH_MAX];
|
||||
char hname[PATH_MAX];
|
||||
char *p;
|
||||
|
||||
int optind = 0;
|
||||
|
||||
setprogname(argv[0]);
|
||||
if(getarg(args, num_args, argc, argv, &optind))
|
||||
usage(1);
|
||||
if(help_flag)
|
||||
usage(0);
|
||||
if(version_flag) {
|
||||
print_version(NULL);
|
||||
exit(0);
|
||||
}
|
||||
|
||||
if(argc == optind)
|
||||
usage(1);
|
||||
|
||||
filename = argv[optind];
|
||||
yyin = fopen(filename, "r");
|
||||
if(yyin == NULL)
|
||||
err(1, "%s", filename);
|
||||
p = strrchr(filename, '/');
|
||||
if(p)
|
||||
strlcpy(cname, p + 1, sizeof(cname));
|
||||
else
|
||||
strlcpy(cname, filename, sizeof(cname));
|
||||
p = strrchr(cname, '.');
|
||||
if(p)
|
||||
*p = '\0';
|
||||
strlcpy(hname, cname, sizeof(hname));
|
||||
strlcat(cname, ".c", sizeof(cname));
|
||||
strlcat(hname, ".h", sizeof(hname));
|
||||
yyparse();
|
||||
if(error_flag)
|
||||
exit(1);
|
||||
if(check(a) == 0) {
|
||||
cfile = fopen(cname, "w");
|
||||
if(cfile == NULL)
|
||||
err(1, "%s", cname);
|
||||
hfile = fopen(hname, "w");
|
||||
if(hfile == NULL)
|
||||
err(1, "%s", hname);
|
||||
gen(a);
|
||||
fclose(cfile);
|
||||
fclose(hfile);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
156
lib/sl/slc-lex.l
Normal file
156
lib/sl/slc-lex.l
Normal file
@@ -0,0 +1,156 @@
|
||||
%{
|
||||
/*
|
||||
* Copyright (c) 2004 Kungliga Tekniska H<>gskolan
|
||||
* (Royal Institute of Technology, Stockholm, Sweden).
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
/* $Id$ */
|
||||
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
#include <stdarg.h>
|
||||
#include "slc.h"
|
||||
#include "slc-gram.h"
|
||||
unsigned lineno = 1;
|
||||
|
||||
static void handle_comment(void);
|
||||
static char * handle_string(void);
|
||||
%}
|
||||
%%
|
||||
[A-Za-z][-A-Za-z0-9_]* {
|
||||
yylval.string = strdup ((const char *)yytext);
|
||||
return LITERAL;
|
||||
}
|
||||
"\"" { yylval.string = handle_string(); return STRING; }
|
||||
\n { ++lineno; }
|
||||
\/\* { handle_comment(); }
|
||||
[={}] { return *yytext; }
|
||||
[ \t] ;
|
||||
%%
|
||||
|
||||
void
|
||||
error_message (const char *format, ...)
|
||||
{
|
||||
va_list args;
|
||||
|
||||
va_start (args, format);
|
||||
fprintf (stderr, "%s:%d: ", filename, lineno);
|
||||
vfprintf (stderr, format, args);
|
||||
va_end (args);
|
||||
error_flag++;
|
||||
}
|
||||
|
||||
void
|
||||
yyerror (char *s)
|
||||
{
|
||||
error_message("%s\n", s);
|
||||
}
|
||||
|
||||
static void
|
||||
handle_comment(void)
|
||||
{
|
||||
int c;
|
||||
int start_lineno = lineno;
|
||||
int level = 1;
|
||||
int seen_star = 0;
|
||||
int seen_slash = 0;
|
||||
while((c = input()) != EOF) {
|
||||
if(c == '/') {
|
||||
if(seen_star) {
|
||||
if(--level == 0)
|
||||
return;
|
||||
seen_star = 0;
|
||||
continue;
|
||||
}
|
||||
seen_slash = 1;
|
||||
continue;
|
||||
}
|
||||
if(seen_star && c == '/') {
|
||||
if(--level == 0)
|
||||
return;
|
||||
seen_star = 0;
|
||||
continue;
|
||||
}
|
||||
if(c == '*') {
|
||||
if(seen_slash) {
|
||||
level++;
|
||||
seen_star = seen_slash = 0;
|
||||
continue;
|
||||
}
|
||||
seen_star = 1;
|
||||
continue;
|
||||
}
|
||||
seen_star = seen_slash = 0;
|
||||
if(c == '\n') {
|
||||
lineno++;
|
||||
continue;
|
||||
}
|
||||
}
|
||||
if(c == EOF)
|
||||
error_message("unterminated comment, possibly started on line %d\n", start_lineno);
|
||||
}
|
||||
|
||||
static char *
|
||||
handle_string(void)
|
||||
{
|
||||
char x[1024];
|
||||
int i = 0;
|
||||
int c;
|
||||
int quote = 0;
|
||||
while((c = input()) != EOF){
|
||||
if(quote) {
|
||||
x[i++] = '\\';
|
||||
x[i++] = c;
|
||||
quote = 0;
|
||||
continue;
|
||||
}
|
||||
if(c == '\n'){
|
||||
error_message("unterminated string");
|
||||
lineno++;
|
||||
break;
|
||||
}
|
||||
if(c == '\\'){
|
||||
quote++;
|
||||
continue;
|
||||
}
|
||||
if(c == '\"')
|
||||
break;
|
||||
x[i++] = c;
|
||||
}
|
||||
x[i] = '\0';
|
||||
return strdup(x);
|
||||
}
|
||||
|
||||
int
|
||||
yywrap ()
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
55
lib/sl/slc.h
Normal file
55
lib/sl/slc.h
Normal file
@@ -0,0 +1,55 @@
|
||||
/*
|
||||
* Copyright (c) 2004 Kungliga Tekniska H<>gskolan
|
||||
* (Royal Institute of Technology, Stockholm, Sweden).
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
/* $Id$ */
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
#include <stdarg.h>
|
||||
|
||||
struct assignment {
|
||||
char *name;
|
||||
enum { a_value, a_assignment } type;
|
||||
union {
|
||||
char *value;
|
||||
struct assignment *assignment;
|
||||
} u;
|
||||
unsigned int lineno;
|
||||
struct assignment *next;
|
||||
};
|
||||
|
||||
extern char *filename;
|
||||
extern int error_flag;
|
||||
void error_message (const char *format, ...);
|
||||
int yylex(void);
|
||||
void yyerror (char *s);
|
||||
extern unsigned lineno;
|
||||
Reference in New Issue
Block a user