Geek 6/Geek-006.iso/linux/video/xmovie-1.5.3.tar.gz/xmovie-1.5.3.tar/xmovie-1.5.3/guicast/stringfile.C

C/C++ Source or Header | 2000-11-29 | 4KB | 253 lines

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

StringFile::StringFile(long length)
{
    pointer = 0;
    if(length == 0)
    {
        this->length = 100000;
    }
    else
    {
        this->length = length;
    }
    string = new char[this->length + 1];
    available = this->length;
}

StringFile::StringFile(char *filename)
{
    FILE *in;
    if(in = fopen(filename, "rb"))
    {
        fseek(in, 0, SEEK_END);
        length = ftell(in);
        available = length;
        fseek(in, 0, SEEK_SET);
        string = new char[length + 5];

        fread(string, length, 1, in);
        for(int i = 0; i < 5; i++) string[length + i] = 0;
        fclose(in);
    }
    else
    {
        //printf("File not found: %s\n", filename);
        length = 0;
        available = 1;
        string = new char[1];
        string[0] = 0;
    }

    pointer = 0;
}

StringFile::~StringFile()
{
    delete string;
}

int StringFile::write_to_file(char *filename)
{
    FILE *out;
    if(out = fopen(filename, "wb"))
    {
        fwrite(string, pointer, 1, out);
    }
    else
    {
        printf("Couldn't open %s for writing.\n", filename);
        return 1;
    }
    fclose(out);
    return 0;
}

int StringFile::read_from_string(char *string)
{
    int i;

    delete this->string;
    length = strlen(string);
    available = length;
    this->string = new char[length + 5];
    strcpy(this->string, string);
    for(i = 0; i < 5; i++) this->string[length + i] = 0;
    return 0;
}

long StringFile::get_length()
{
    return strlen(string);
}

long StringFile::get_pointer()
{
    return pointer;
}

int StringFile::readline(char *arg2)
{
    readline(string1, arg2);
    return 0;
}

int StringFile::readline()
{
    readline(string1, string1);
    return 0;
}

int StringFile::readline(float *arg2)
{
    readline(string1, arg2);
    return 0;
}

int StringFile::readline(int *arg2)
{
    readline(string1, arg2);
    return 0;
}

int StringFile::readline(long *arg2)
{
    readline(string1, arg2);
    return 0;
}

int StringFile::readline(Freq *arg2)
{
    readline(string1, &(arg2->freq));
    return 0;
}

int StringFile::readline(char *arg1, char *arg2)
{
    int i, len, max;
    len = 0; max = 1024;

    while(string[pointer] == ' ') pointer++; // skip indent
    arg1[0] = 0;    arg2[0] = 0;

    for(i = 0; string[pointer] != ' ' && string[pointer] != '\n' && len < max; i++, pointer++)
    {     // get title
        arg1[i] = string[pointer];
        len++;
    }
    arg1[i] = 0;

    if(string[pointer] != '\n')
    {       // get value
        pointer++;      // skip space
        for(i = 0; string[pointer] != '\n' && len < max; i++, pointer++)
        {
            arg2[i] = string[pointer];
            len++;
        }
        arg2[i] = 0;
    }
    pointer++;      // skip eoln
    return 0;
}

int StringFile::backupline()
{
    while(string[pointer] != 10 && pointer > 0)
    {
        pointer--;     // first eoln
    }
    if(string[pointer] == 10) pointer--;        // skip eoln

    while(string[pointer] != 10 && pointer > 0)
    {
        pointer--;     // second eoln
    }

    if(string[pointer] == 10) pointer++;      // skip eoln
    return 0;
}

int StringFile::readline(char *arg1, long *arg2)
{
    readline(arg1, string1);
    *arg2 = atol(string1);
    return 0;
}

int StringFile::readline(char *arg1, int *arg2)
{
    long arg;
    readline(arg1, &arg);
    *arg2 = (int)arg;
    return 0;
}

int StringFile::readline(char *arg1, float *arg2)
{
    readline(arg1, string1);
    *arg2 = atof(string1);
    return 0;
}

int StringFile::writeline(char *arg1, int indent)
{
    int i;

// reallocate the string
    if(pointer + strlen(arg1) > available)
    {
        char *newstring = new char[available * 2];
        strcpy(newstring, string);
        delete string;
        available *= 2;
        length *= 2;
        string = newstring;
    }

    for(i = 0; i < indent; i++, pointer++) string[pointer] = ' ';
    sprintf(&string[pointer], arg1);
    pointer += strlen(arg1);
    return 0;
}

int StringFile::writeline(char *arg1, char *arg2, int indent)
{
    int i;

    sprintf(string1, "%s %s\n", arg1, arg2);
    writeline(string1, indent);
    return 0;
}

int StringFile::writeline(char *arg1, long arg2, int indent)
{
    sprintf(string1, "%s %ld\n", arg1, arg2);
    writeline(string1, indent);
    return 0;
}

int StringFile::writeline(char *arg1, int arg2, int indent)
{
    sprintf(string1, "%s %d\n", arg1, arg2);
    writeline(string1, indent);
    return 0;
}

int StringFile::writeline(char *arg1, float arg2, int indent)
{
    sprintf(string1, "%s %f\n", arg1, arg2);
    writeline(string1, indent);
    return 0;
}

int StringFile::writeline(char *arg1, Freq arg2, int indent)
{
    sprintf(string1, "%s %d\n", arg1, arg2.freq);
    writeline(string1, indent);
    return 0;
}