bin/tests/lex_test.c

	lex_test.c revision 0c27b3fe77ac1d5094ba3521e8142d9e7973133f
/*
 * Copyright (C) 1998-2001, 2004, 2005, 2007, 2015, 2016  Internet Systems Consortium, Inc. ("ISC")
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

/* $Id: lex_test.c,v 1.23 2007/06/19 23:46:59 tbox Exp $ */

/*! \file */
#include <config.h>

#include <isc/commandline.h>
#include <isc/lex.h>
#include <isc/mem.h>
#include <isc/print.h>
#include <isc/util.h>

isc_mem_t *mctx;
isc_lex_t *lex;

isc_lexspecials_t specials;

static void
print_token(isc_token_t *tokenp, FILE *stream) {
    switch (tokenp->type) {
    case isc_tokentype_unknown:
        fprintf(stream, "UNKNOWN");
        break;
    case isc_tokentype_string:
        fprintf(stream, "STRING %.*s",
            (int)tokenp->value.as_region.length,
            tokenp->value.as_region.base);
        break;
    case isc_tokentype_number:
        fprintf(stream, "NUMBER %lu", tokenp->value.as_ulong);
        break;
    case isc_tokentype_qstring:
        fprintf(stream, "QSTRING \"%.*s\"",
            (int)tokenp->value.as_region.length,
            tokenp->value.as_region.base);
        break;
    case isc_tokentype_eol:
        fprintf(stream, "EOL");
        break;
    case isc_tokentype_eof:
        fprintf(stream, "EOF");
        break;
    case isc_tokentype_initialws:
        fprintf(stream, "INITIALWS");
        break;
    case isc_tokentype_special:
        fprintf(stream, "SPECIAL %c", tokenp->value.as_char);
        break;
    case isc_tokentype_nomore:
        fprintf(stream, "NOMORE");
        break;
    default:
        FATAL_ERROR(__FILE__, __LINE__, "Unexpected type %d",
                tokenp->type);
    }
}

int
main(int argc, char *argv[]) {
    isc_token_t token;
    isc_result_t result;
    int quiet = 0;
    int c;
    int masterfile = 1;
    int stats = 0;
    unsigned int options = 0;
    int done = 0;

    while ((c = isc_commandline_parse(argc, argv, "qmcs")) != -1) {
        switch (c) {
        case 'q':
            quiet = 1;
            break;
        case 'm':
            masterfile = 1;
            break;
        case 'c':
            masterfile = 0;
            break;
        case 's':
            stats = 1;
            break;
        }
    }

    RUNTIME_CHECK(isc_mem_create(0, 0, &mctx) == ISC_R_SUCCESS);
    RUNTIME_CHECK(isc_lex_create(mctx, 256, &lex) == ISC_R_SUCCESS);

    if (masterfile) {
        /* Set up to lex DNS master file. */

        specials['('] = 1;
        specials[')'] = 1;
        specials['"'] = 1;
        isc_lex_setspecials(lex, specials);
        options = ISC_LEXOPT_DNSMULTILINE | ISC_LEXOPT_ESCAPE |
            ISC_LEXOPT_EOF |
            ISC_LEXOPT_QSTRING | ISC_LEXOPT_NOMORE;
        isc_lex_setcomments(lex, ISC_LEXCOMMENT_DNSMASTERFILE);
    } else {
        /* Set up to lex DNS config file. */

        specials['{'] = 1;
        specials['}'] = 1;
        specials[';'] = 1;
        specials['/'] = 1;
        specials['"'] = 1;
        specials['!'] = 1;
        specials['*'] = 1;
        isc_lex_setspecials(lex, specials);
        options = ISC_LEXOPT_EOF |
            ISC_LEXOPT_QSTRING |
            ISC_LEXOPT_NUMBER | ISC_LEXOPT_NOMORE;
        isc_lex_setcomments(lex, (ISC_LEXCOMMENT_C|
                      ISC_LEXCOMMENT_CPLUSPLUS|
                      ISC_LEXCOMMENT_SHELL));
    }

    RUNTIME_CHECK(isc_lex_openstream(lex, stdin) == ISC_R_SUCCESS);

    while ((result = isc_lex_gettoken(lex, options, &token)) ==
           ISC_R_SUCCESS && !done) {
        if (!quiet) {
            char *name = isc_lex_getsourcename(lex);
            print_token(&token, stdout);
            printf(" line = %lu file = %s\n",
                isc_lex_getsourceline(lex),
                (name == NULL) ? "<none>" : name);
        }
        if (token.type == isc_tokentype_eof)
            isc_lex_close(lex);
        if (token.type == isc_tokentype_nomore)
            done = 1;
    }
    if (result != ISC_R_SUCCESS)
        printf("Result: %s\n", isc_result_totext(result));

    isc_lex_close(lex);
    isc_lex_destroy(&lex);
    if (!quiet && stats)
        isc_mem_stats(mctx, stdout);
    isc_mem_destroy(&mctx);

    return (0);
}