The Programmer Disk/The Programmer Disk (Microforum).iso/xpro/vc/pro2/fsr.cpp

C/C++ Source or Header | 1993-09-16 | 5.4 KB | 165 lines

// File Search and Replace
// This routine will scan a DOS file searching and replacing
// matching text strings. The file to be opened will be specified
// on the command line, and the new file that will be created will
// be called FSR.NEW. After completing the operating and closing
// both files, the original file will be replaced and FSR.NEW will
// be renamed the same as the old file. As an Option you can pass
// argc[4] as the TempFile name and this will be used instead of
// FSR.NEW.
// Command Line: FILENAME SEARCHSTRING REPLACESTRING [TempFile]

// FSR.CPP - By Todd Osborne CIS ID: 71431,2243
// 09/16/93 - Compiled with Microsoft Visual C++ 1.00

// This source code and program are Public Domain

// Feel free to copy and use this source code in other programs.
// Please let me know if you find any bugs or want improvements!!

// **** THIS PROGRAM IS CASE-SENSITIVE ****

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

// Function Prototypes
int     FileSearchAndReplace (char*, char*, char*, char*);
void     ReplaceString (char*, char *, char *);
int     CopyTextFile (char*, char *);
void    ShowHelp(void);

void main (int argv, char *argc[] )
{
    if (argv < 4)
        {
        ShowHelp();
        exit (0);
        }
    else

    //argc[4] can be used to specify the temp file name (FSR.NEW is default)
    if (argc[4]==NULL)
        {
        FileSearchAndReplace (argc[1], argc[2], argc[3], "FSR.NEW");
        }
        else FileSearchAndReplace (argc[1], argc[2], argc[3], argc[4]);
    exit (0);
}


int FileSearchAndReplace (char *FileName, char *SearchString, char *ReplaceStr, char *TempFile)
{
    // Perform the File Search and Replace
    // Function returns 1 if successfull, 0 if not

    FILE *FP1, *FP2;                        // File Pointer 1 (Open File) and 2 (New File)
    char InString[256]="";
    char *loc="";                            // Pointer to character location in InString

    if ( (FP1=fopen(FileName, "r")) != NULL )
        {
        //Open Output File
        if ( (FP2=fopen(TempFile, "w")) == NULL )
            {
            fcloseall();                // Something's Wrong!!
            return (0);
            }

        // Process this file
        while ( (fgets (InString, 256, FP1)) != NULL )
            {
            //There may be more than one string in each line, so loop
            while ( (loc=strstr(InString, SearchString)) != NULL )
                {
                ReplaceString (InString, SearchString, ReplaceStr);
                }
            fputs (InString, FP2);        // Write modified line to new file
            }
        fcloseall();                    // Close open files

        // Copy File instead of rename. If you only rename it, the file
        // will exists in the same directory as FSR.EXE. We want it to
        // be placed in the same location it came from!
        CopyTextFile (TempFile, FileName);
        remove (TempFile);
        return (1);
        }
    else
        {
        printf("\nFile not found.\n");
        return (0);
        }
}


void ReplaceString (char *InString, char *SearchString, char *ReplaceStr)
{
    //Do the Actual String Replacement Here

    char NewString1[256]="";                // 1st Part of New String
    char NewString2[256]="";                // 2nd Part of New String
    char *loc="";

    loc=strstr(InString, SearchString);
    strncpy (NewString1, InString, loc-InString);
    strncpy (NewString2, InString + ( (loc-InString) + (strlen(SearchString)) ), 256);
    strcpy (InString, NewString1);            // Combine these suckers
    strcat (InString, ReplaceStr);          //
    strcat (InString, NewString2);          //
}


int CopyTextFile (char *SourceFile, char *DestFile)
{
    // This routine copies TEXT files ONLY !!

    FILE *FP1, *FP2;
    char InString[256]="";

    if ( (FP1=fopen(SourceFile, "r")) != NULL )
        {
        //Open Output File
        if ( (FP2=fopen(DestFile, "w")) == NULL )
            {
            fcloseall();                // Something's Wrong!!
            return (0);
            }
        else
        // Process this file
            while ( (fgets (InString, 256, FP1)) != NULL )
                {
                fputs (InString, FP2);
                }
        fcloseall();
        return (1);
        }
    else return (0);
}


void ShowHelp(void)
{
    int i=0;

    printf("\n%c", 201);
    for (i=2; i<80; i++) printf("%c", 205);
    printf("%c", 187);
    printf("%c                            File Search and Replace                           %c", 186, 186);
    printf("%c", 204);
    for (i=2; i<80; i++) printf("%c", 205);
    printf("%c", 185);
    printf("%c                                                                              %c", 186, 186);
    printf("%c Command Line Argument: FN SS SR [TF]                                         %c", 186, 186);
    printf("%c                                                                              %c", 186, 186);
    printf("%c FN = File Name to Search     SS = String to Search For                       %c", 186, 186);
    printf("%c SR = Replacement String      TF = Optional Temporary File Name               %c", 186, 186);
    printf("%c                                                                              %c", 186, 186);
    printf("%c   Public Domain Software By Todd Osborne: CIS ID 71431,2243 Charlotte, NC    %c", 186, 186);
    printf("%c   Date: 09/16/93   Version 1.00   Coded using Microsoft Visual C++  V1.00    %c", 186, 186);
    printf("%c                                                                              %c", 186, 186);
    printf("%c NOTE: This Program is Case-Sensitive (Example: Hello is the same as hello)   %c", 186, 186);
    printf("%c", 200);
    for (i=2; i<80; i++) printf("%c", 205);
    printf("%c\ndir ", 188);
}