Amiga MA Magazine 1998 #3/amigamamagazinepolishissue1998.iso/bazy/fiasco_2.1/databases/aminet/scancont.frx

Text File | 1997-10-06 | 7KB | 285 lines

/* ScanAminetCont.frx
 * Scans Aminet contents files
 * Copyright © 1997 Nils Bandener
 * $VER: ScanAminetCont.frx 6.4 (6.10.97)
 */

scriptname = "Import Aminet Contents"

Options Results

/*
 *  If not called from Fiasco, try to address the active
 *  Fiasco project
 */

if ~abbrev(address(), "FIASCO.") then
do
    ports = show("Ports")

    do i = 1 to words(ports)

        if abbrev(word(ports, i), "FIASCO.") then
        do
            Address Value word(ports, i)

            GetAttr Project Name Active ARexx

            Address Value Result

            break
        end
    end
end

fiasco_port = address()

Signal on Syntax
Signal on Halt
Signal on Break_C
Signal on Failure

LockGUI


ageinfile = 0
ignoreage = 0
cdname = ""

CountRecords Var lastrec

/*
 *  Request file to import
 */

RequestFile '"INDEX" Title "Select contents file" NoIcons'

if rc = 0 then
do

    file = result

    /*
     *  Open file
     */

    if open("c", file, "read") then
    do
        /*
         *  Read file line by line
         */

        say "Scanning contents file"
        say "Ctrl-C for break"

        do while ~eof("c")

            line = readln("c")

            if left(line, 1) = "|" then
            do
                /* This is a comment */

                /* However, look for a date of the file
                 * and a CD that contains the files
                 */

                if pos("Age in weeks", line) ~= 0 then
                    ageinfile = 1

                atpos = pos("Local files at ", line)

                if atpos ~= 0 then
                do
                    cd = substr(line, atpos + 15)

                    if word(cd, 1) = "Aminet" then
                    do
                        if word(cd, 2) = "CD" then
                        do

                            cdname = "Aminet" || word(cd, 3)

                        end
                        else if word(cd, 2) = "Set" then
                        do

                            cdname = "Set" || word(cd, 3)

                        end
                    end
                end

                onpos = pos(" on ", line)

                if onpos ~= 0 then
                do
                    /* Parse date */

                    day = substr(line, onpos + 4, 2)
                    month = substr(line, onpos + 7, 3)
                    year = substr(line, onpos + 11, 2)

                    if (verify(day, "0123456789") = 0) & (verify(year, "0123456789") = 0) then
                    do
                        /* day and year are valid numbers */

                        if (day > 0) & (day <= 31) then
                        do
                            /*
                             *  Computer number of days since beginning
                             *  of the year
                             */

                            select
                                when month = "Jan" then totaldays = 0
                                when month = "Feb" then totaldays = 31 * 1 + 30 * 0
                                when month = "Mar" then totaldays = 31 * 1 + 30 * 0 + 28
                                when month = "Apr" then totaldays = 31 * 2 + 30 * 0 + 28
                                when month = "May" then totaldays = 31 * 2 + 30 * 1 + 28
                                when month = "Jun" then totaldays = 31 * 3 + 30 * 1 + 28
                                when month = "Jul" then totaldays = 31 * 3 + 30 * 2 + 28
                                when month = "Aug" then totaldays = 31 * 4 + 30 * 3 + 28
                                when month = "Sep" then totaldays = 31 * 5 + 30 * 3 + 28
                                when month = "Oct" then totaldays = 31 * 5 + 30 * 4 + 28
                                when month = "Nov" then totaldays = 31 * 6 + 30 * 4 + 28
                                when month = "Dec" then totaldays = 31 * 6 + 30 * 5 + 28
                                otherwise totaldays = -1
                            end

                            if totaldays ~= -1 then
                            do
                                totaldays = totaldays + day

                                /*
                                 *  Compute number of weeks in that year so far
                                 */

                                week = totaldays / 7
                            end
                        end
                    end
                end

            end
            else
            do
                /* Not a comment */


                if ~ignoreage then
                do

                    if ~ageinfile then
                    do

                        RequestChoice '"This file does not contain age information!*nDo you want to import the file nethertheless?" "Yes|No" Title "Import Aminet Index"'

                        if result = 0 then do

                            call close("c")

                            call bail_out
                        end

                        ignoreage = 1
                    end
                end

                /*
                 *  Parse an index line
                 */

                anfile = substr(line, 1, 18)
                andir  = substr(line, 20, 10)
                ansize = substr(line, 31, 4)

                AddRecord Record lastrec Inactive
                lastrec = result

                if ageinfile then
                do
                    anage = substr(line, 36, 3)

                    age_years = trunc(anage / 52)
                    age_weeks = anage - age_years * 52

                    abs_week = week - age_weeks
                    abs_year = year - age_years

                    if abs_week < 1 then do

                        abs_year = abs_year - 1
                        abs_week = 52 + abs_week

                    end

                    SetField "Week" Record lastrec abs_week
                    SetField "Year" Record lastrec abs_year

                    andesc = substr(line, 40, 40)
                end
                else
                do
                    andesc = substr(line, 36, 40)
                end

                SetField "Directory" record lastrec andir
                SetField "Archive" record lastrec anfile
                SetField "Size" record lastrec ansize
                SetField "Short" record lastrec andesc
                SetField "CD" record lastrec cdname
            end
        end

        call close("c")
    end
end

bail_out:
Address Value fiasco_port

UnlockGUI
ResetStatus

exit

syntax:
failure:

if show("Ports", fiasco_port) then
do
    Address Value fiasco_port

    RequestChoice '"Error ' || rc || ' in line ' || sigl || ':*n' || errortext(rc) || '" "Cancel" Title "' || scriptname || '"'
end
else
do
    say "Error" rc "in line" sigl ":" errortext(rc)
    say "Enter to continue"
    pull dummy
end

call bail_out

halt:
break_c:

if show("Ports", fiasco_port) then
do
    Address Value fiasco_port

    RequestChoice '"Script Abort Requested" "Abort Script" Title "' || scriptname || '"'
end
else
do
    say "*** Break"
    say "Enter to continue"
    pull dummy
end

call bail_out