base/libs/qdecoder/qSed.c

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/*
 * Copyright 2008 The qDecoder Project. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE QDECODER PROJECT ``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 QDECODER PROJECT 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.
 */

#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>
#include <stdarg.h>
#include "qDecoder.h"
#include "qInternal.h"

#define SSI_INCLUDE_START   "<!--#include file=\""
#define SSI_INCLUDE_END     "\"-->"

bool qSedStr(Q_ENTRY *entry, const char *srcstr, FILE *fpout) {
    if (srcstr == NULL) return false;

    /* Parsing */
    char *sp = (char *)srcstr;
    while (*sp != '\0') {
        /* SSI invocation */
        if (!strncmp(sp, SSI_INCLUDE_START, strlen(SSI_INCLUDE_START))) {
            char ssi_inc_file[MAX_LINEBUF], *endp;
            if ((endp = strstr(sp, SSI_INCLUDE_END)) != NULL) {
                sp += strlen(SSI_INCLUDE_START);
                qStrCpy(ssi_inc_file, sizeof(ssi_inc_file), sp, endp - sp);
                sp = (endp + strlen(SSI_INCLUDE_END));

                if (qFileExist(ssi_inc_file) == true) qSedFile(entry, ssi_inc_file, fpout);
                else fprintf(fpout, "[qSedStr: an error occurred while processing 'include' directive - file(%s) open fail]", ssi_inc_file);
            } else fprintf(fpout, "[qSedStr: an error occurred while processing 'include' directive - ending tag not found]");
            continue;
        }

        /* Pattern Matching */
        int flag;
        const Q_NLOBJ *obj;
        for (obj = (Q_NLOBJ*)qEntryFirst(entry), flag = 0; obj && flag == 0; obj = (Q_NLOBJ*)qEntryNext(entry)) {
            if (!strncmp(sp, obj->name, strlen(obj->name))) {
                fprintf(fpout, "%s", (char *)obj->object);
                sp += strlen(obj->name);
                flag = 1;
                break;
            }
        }
        if (flag == 0) {
            fprintf(fpout, "%c", *sp);
            sp++;
        }
    }

    return true;
}

bool qSedFile(Q_ENTRY *entry, const char *filepath, FILE *fpout) {
    char *sp;
    int flag;

    if ((sp = qFileLoad(filepath, NULL)) == NULL) return false;
    flag = qSedStr(entry, sp, fpout);
    free(sp);

    return flag;
}

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