package fleprocess /* Copyright © 2020 Jean-Marc Meessen, ON4KJM Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ import ( "bufio" "fmt" "log" "os" "regexp" "strings" "time" ) // LoadFile FIXME: // returns nill if failure to process func LoadFile(inputFilename string, isInterpolateTime bool) (filleFullLog []LogLine, isProcessedOK bool) { file, err := os.Open(inputFilename) if err != nil { log.Fatalf("failed opening file: %s", err) } scanner := bufio.NewScanner(file) scanner.Split(bufio.ScanLines) var txtlines []string for scanner.Scan() { txtlines = append(txtlines, scanner.Text()) } if error := scanner.Err(); error != nil { log.Fatal(error) } file.Close() //isInferTimeFatalError is set to true is something bad happened while storing time gaps. isInferTimeFatalError := false regexpLineComment := regexp.MustCompile(`^[[:blank:]]*#`) regexpOnlySpaces := regexp.MustCompile(`^\s+$`) regexpSingleMultiLineComment := regexp.MustCompile(`^[[:blank:]]*{.+}$`) regexpStartMultiLineComment := regexp.MustCompile(`^[[:blank:]]*{`) regexpEndMultiLineComment := regexp.MustCompile(`}$`) //FIXME: fields can delimited with space or TAB ("(?i)^mywwff\s+") regexpHeaderMyCall := regexp.MustCompile(`(?i)^mycall\s+`) regexpHeaderOperator := regexp.MustCompile(`(?i)^operator\s+`) regexpHeaderMyWwff := regexp.MustCompile(`(?i)^mywwff\s+`) regexpHeaderMySota := regexp.MustCompile(`(?i)^mysota\s+`) regexpHeaderMyPota := regexp.MustCompile(`(?i)^mypota\s+`) regexpHeaderMyGrid := regexp.MustCompile(`(?i)^mygrid\s+`) regexpHeaderQslMsg := regexp.MustCompile(`(?i)^qslmsg\s+`) regexpHeaderNickname := regexp.MustCompile(`(?i)^nickname\s+`) headerMyCall := "" headerOperator := "" headerMyWWFF := "" headerMySOTA := "" headerMyPOTA := "" headerMyGrid := "" headerQslMsg := "" headerNickname := "" headerIsFirstLine := true //headerDate := "" lineCount := 0 wrkTimeBlock := InferTimeBlock{} missingTimeBlockList := []InferTimeBlock{} var isInMultiLine = false // var cleanedInput []string var errorLog []string var previousLogLine LogLine fullLog := []LogLine{} //Loop through all the stored lined for _, eachline := range txtlines { lineCount++ // **** // ** Lets do some house keeping first by dropping the unnecessary lines // **** //Skip the line if it starts with "#" if regexpLineComment.MatchString(eachline) { continue } //Skip if line is empty or blank if (len(eachline) == 0) || (regexpOnlySpaces.MatchString(eachline)) { continue } // Process multi-line comments if regexpStartMultiLineComment.MatchString(eachline) { //Single-line "multi-line" comment if regexpSingleMultiLineComment.MatchString(eachline) { continue } isInMultiLine = true continue } if isInMultiLine { if regexpEndMultiLineComment.MatchString(eachline) { isInMultiLine = false } continue } // **** // ** Process the Header block // **** //My Call if regexpHeaderMyCall.MatchString(eachline) { //Attempt to redefine value if headerMyCall != "" { errorLog = append(errorLog, fmt.Sprintf("Attempt to redefine MyCall at line %d", lineCount)) continue } errorMsg := "" myCallList := regexpHeaderMyCall.Split(eachline, -1) if len(strings.TrimSpace(myCallList[1])) > 0 { headerMyCall, errorMsg = ValidateCall(strings.TrimSpace(myCallList[1])) // cleanedInput = append(cleanedInput, fmt.Sprintf("My call: %s", headerMyCall)) if len(errorMsg) != 0 { errorLog = append(errorLog, fmt.Sprintf("Invalid myCall at line %d: %s (%s)", lineCount, myCallList[1], errorMsg)) } } //If there is no data after the marker, we just skip the data. continue } //Operator if regexpHeaderOperator.MatchString(eachline) { //Attempt to redefine value if headerOperator != "" { errorLog = append(errorLog, fmt.Sprintf("Attempt to redefine Operator at line %d", lineCount)) continue } errorMsg := "" myOperatorList := regexpHeaderOperator.Split(eachline, -1) if len(strings.TrimSpace(myOperatorList[1])) > 0 { headerOperator, errorMsg = ValidateCall(strings.TrimSpace(myOperatorList[1])) // cleanedInput = append(cleanedInput, fmt.Sprintf("Operator: %s", headerOperator)) if len(errorMsg) != 0 { errorLog = append(errorLog, fmt.Sprintf("Invalid Operator at line %d: %s (%s)", lineCount, myOperatorList[1], errorMsg)) } } //If there is no data after the marker, we just skip the data. continue } // My WWFF if regexpHeaderMyWwff.MatchString(eachline) { //Attempt to redefine value if headerMyWWFF != "" { errorLog = append(errorLog, fmt.Sprintf("Attempt to redefine MyWWFF at line %d", lineCount)) continue } errorMsg := "" myWwffList := regexpHeaderMyWwff.Split(eachline, -1) if len(strings.TrimSpace(myWwffList[1])) > 0 { headerMyWWFF, errorMsg = ValidateWwff(strings.TrimSpace(myWwffList[1])) // cleanedInput = append(cleanedInput, fmt.Sprintf("My WWFF: %s", headerMyWWFF)) if len(errorMsg) != 0 { errorLog = append(errorLog, fmt.Sprintf("Invalid \"My WWFF\" at line %d: %s (%s)", lineCount, myWwffList[1], errorMsg)) } } //If there is no data after the marker, we just skip the data. continue } //My Pota if regexpHeaderMyPota.MatchString(eachline) { //Attempt to redefine value if headerMyPOTA != "" { errorLog = append(errorLog, fmt.Sprintf("Attempt to redefine MyPOTA at line %d", lineCount)) continue } errorMsg := "" myPotaList := regexpHeaderMyPota.Split(eachline, -1) if len(strings.TrimSpace(myPotaList[1])) > 0 { headerMyPOTA, errorMsg = ValidatePota(strings.TrimSpace(myPotaList[1])) // cleanedInput = append(cleanedInput, fmt.Sprintf("My Pota: %s", headerMyPOTA)) if len(errorMsg) != 0 { errorLog = append(errorLog, fmt.Sprintf("Invalid \"My POTA\" at line %d: %s (%s)", lineCount, myPotaList[1], errorMsg)) } } //If there is no data after the marker, we just skip the data. continue } //My Sota if regexpHeaderMySota.MatchString(eachline) { oldHeaderMySOTA := headerMySOTA errorMsg := "" mySotaList := regexpHeaderMySota.Split(eachline, -1) if len(strings.TrimSpace(mySotaList[1])) > 0 { headerMySOTA, errorMsg = ValidateSota(strings.TrimSpace(mySotaList[1])) // cleanedInput = append(cleanedInput, fmt.Sprintf("My Sota: %s", headerMySOTA)) if len(errorMsg) != 0 { errorLog = append(errorLog, fmt.Sprintf("Invalid \"My SOTA\" at line %d: %s (%s)", lineCount, mySotaList[1], errorMsg)) } } if oldHeaderMySOTA != headerMySOTA { // New SOTA reference defined headerIsFirstLine = true } //If there is no data after the marker, we just skip the data. continue } //My Grid if regexpHeaderMyGrid.MatchString(eachline) { //Attempt to redefine value if headerMyGrid != "" { errorLog = append(errorLog, fmt.Sprintf("Attempt to redefine MyGrid at line %d", lineCount)) continue } errorMsg := "" myGridList := regexpHeaderMyGrid.Split(eachline, -1) if len(strings.TrimSpace(myGridList[1])) > 0 { headerMyGrid, errorMsg = ValidateGridLocator(strings.TrimSpace(myGridList[1])) // cleanedInput = append(cleanedInput, fmt.Sprintf("My Grid: %s", headerMyGrid)) if len(errorMsg) != 0 { errorLog = append(errorLog, fmt.Sprintf("Invalid \"My Grid\" at line %d: %s (%s)", lineCount, myGridList[1], errorMsg)) } } //If there is no data after the marker, we just skip the data. continue } //QSL Message if regexpHeaderQslMsg.MatchString(eachline) { myQslMsgList := regexpHeaderQslMsg.Split(eachline, -1) if len(myQslMsgList[1]) > 0 { headerQslMsg = myQslMsgList[1] // cleanedInput = append(cleanedInput, fmt.Sprintf("QSL Message: %s", headerQslMsg)) } //If there is no data after the marker, we just skip the data. continue } //Nickname if regexpHeaderNickname.MatchString(eachline) { //Attempt to redefine value if headerNickname != "" { errorLog = append(errorLog, fmt.Sprintf("Attempt to redefine eQSL Nickname at line %d", lineCount)) continue } myNicknameList := regexpHeaderNickname.Split(eachline, -1) if len(strings.TrimSpace(myNicknameList[1])) > 0 { headerNickname = strings.TrimSpace(myNicknameList[1]) // cleanedInput = append(cleanedInput, fmt.Sprintf("eQSL Nickmane: %s", headerNickname)) } //If there is no data after the marker, we just skip the data. continue } // **** // ** Process the data block // **** // Load the header values in the previousLogLine previousLogLine.MyCall = headerMyCall previousLogLine.Operator = headerOperator previousLogLine.isFirstLine = headerIsFirstLine previousLogLine.MyWWFF = headerMyWWFF previousLogLine.MyPOTA = headerMyPOTA previousLogLine.MySOTA = headerMySOTA previousLogLine.MyGrid = headerMyGrid previousLogLine.QSLmsg = headerQslMsg //previousLogLine.QslMsg is redundant previousLogLine.Nickname = headerNickname //parse a line logline, errorLine := ParseLine(eachline, previousLogLine) //we have a valid line (contains a call) if logline.Call != "" { fullLog = append(fullLog, logline) //store time inference data if isInterpolateTime && !isInferTimeFatalError { var isEndOfGap bool if isEndOfGap, err = wrkTimeBlock.storeTimeGap(logline, len(fullLog)); err != nil { errorLog = append(errorLog, fmt.Sprintf("Fatal error at line %d: %s", lineCount, err)) isInferTimeFatalError = true } //If we reached the end of the time gap, we make the necessary checks and make our gap calculation if isEndOfGap { if err := wrkTimeBlock.finalizeTimeGap(); err != nil { //If an error occurred it is a fatal error errorLog = append(errorLog, fmt.Sprintf("Fatal error at line %d: %s", lineCount, err)) isInferTimeFatalError = true } if isInferTimeFatalError { break } //add it to the gap collection missingTimeBlockList = append(missingTimeBlockList, wrkTimeBlock) //create a new block wrkTimeBlock = InferTimeBlock{} //Store this record in the new block as a new gap might be following _, err := wrkTimeBlock.storeTimeGap(logline, len(fullLog)) //no real error or endOfGap processing as it has already been successfully processed if err != nil { errorLog = append(errorLog, fmt.Sprintf("Fatal error at line %d: %s", lineCount, err)) isInferTimeFatalError = true } } } } //Store append the accumulated soft parsing errors into the global parsing error log file if errorLine != "" { errorLog = append(errorLog, fmt.Sprintf("Parsing error at line %d: %s ", lineCount, errorLine)) } //store the current logline so that it can be used as a model when parsing the next line // and reset the FirstLine flag previousLogLine = logline headerIsFirstLine = false //We go back to the top to process the next loaded log line (Continue not necessary here) } //*** //*** We have done processing the log file, so let's post process it //*** //if asked to infer the date, lets update the loaded logfile accordingly if isInterpolateTime { //Do we have an open timeBlok that has not been closed. if (wrkTimeBlock.noTimeCount > 0) && (wrkTimeBlock.nextValidTime.IsZero()) { errorLog = append(errorLog, "Fatal error: missing new time to infer time") } else { for _, timeBlock := range missingTimeBlockList { if err := timeBlock.validateTimeGap(); err != nil { errorLog = append(errorLog, fmt.Sprintf("Fatal error: %s", err)) break } for i := 0; i < timeBlock.noTimeCount; i++ { position := timeBlock.logFilePosition + i pLogLine := &fullLog[position] durationOffset := timeBlock.deltatime * time.Duration(i+1) newTime := timeBlock.lastRecordedTime.Add(durationOffset) updatedTimeString := newTime.Format("1504") pLogLine.Time = updatedTimeString } } } } displayLogSimple(fullLog) //Display parsing errors, if any if len(errorLog) != 0 { fmt.Println("\nProcessing errors:") for _, errorLogLine := range errorLog { fmt.Println(errorLogLine) } isProcessedOK = false } else { fmt.Println("\nSuccessfully parsed ", lineCount, " lines.") isProcessedOK = true } return fullLog, isProcessedOK } // displayLogSimple will print to stdout a simplified dump of a full log func displayLogSimple(fullLog []LogLine) { isFirstLogLine := true for _, filledLogLine := range fullLog { if (filledLogLine.isFirstLine || isFirstLogLine) { fmt.Print("\n\n") fmt.Println(SprintHeaderValues(filledLogLine)) fmt.Print(SprintColumnTitles()) isFirstLogLine = false } fmt.Print(SprintLogInColumn(filledLogLine)) } }