Create printluminary.go

2026-03-10 12:18:20 +00:00 · 2024-08-15 20:22:40 -05:00
parent a5d93d263f
commit 82e5170e0d
1 changed files with 145 additions and 0 deletions
--- a/printluminary.go
+++ b/printluminary.go
@@ -0,0 +1,145 @@
+/*
+	Author of this utility: Matthew R. Wilson <mwilson@mattwilson.org>
+	Date: March 13, 2022
+	License: I release this into the public domain.
+
+	This utilty reads the files from
+	<https://github.com/chrislgarry/Apollo-11/tree/master/Luminary099>
+	and prepares a file to print with Virtual1403.
+
+	Note:
+	  There appears to be a discrepancy between the MAIN.agc file,
+	  which lists TRIM_GIMBAL_CNTROL_SYSTEM.agc as a filename, and the
+	  name of the file in the directory, which is
+	  TRIM_GIMBAL_CONTROL_SYSTEM.agc (control spelled out fully). To include
+	  the contents of the file, either change the spelling in MAIN.agc or
+	  rename the file on disk.
+
+	  Additionally, the MAIN.agc refers to a file,
+	  LAMBERT_AIMPOINT_GUIDANCE.agc, which on disk is named
+	  GENERAL_LAMBERT_AIMPOINT_GUIDANCE.agc. Again, rename one or the other.
+*/
+
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"log"
+	"os"
+	"path/filepath"
+	"regexp"
+	"strings"
+)
+
+const mainFileName = "MAIN.agc"
+
+func main() {
+	if len(os.Args) != 2 {
+		log.Fatalln("Must provide one argument: path to Luminary099 directory")
+	}
+	path := os.Args[1]
+
+	stat, err := os.Stat(path)
+	if err != nil {
+		log.Fatalf("Couldn't open path `%s`:\n%v\n", path, err)
+	}
+	if !stat.IsDir() {
+		log.Fatalf("Path `%s` is not a directory.\n", path)
+	}
+
+	if err := doIt(path, os.Stdout); err != nil {
+		log.Fatalln(err)
+	}
+}
+
+func doIt(path string, w io.Writer) error {
+	files := make([]string, 0)
+
+	toc, err := os.Open(filepath.Join(path, mainFileName))
+	if err != nil {
+		return err
+	}
+	defer toc.Close()
+
+	buf := bufio.NewScanner(toc)
+	for buf.Scan() {
+		files = append(files, buf.Text())
+	}
+	if err := buf.Err(); err != nil {
+		return err
+	}
+
+	// We'll make our own table of contents
+	fmt.Fprintln(w, "T A B L E    O F    C O N T E N T S")
+	fmt.Fprintln(w)
+	for _, line := range files {
+		if line[0] != '$' {
+			continue
+		}
+		fmt.Fprintln(w, line)
+	}
+
+	// Now print each file
+	fileRegex := regexp.MustCompile(`\$([A-Z0-9_\-]+)\.agc`)
+	for _, line := range files {
+		if line[0] != '$' {
+			continue
+		}
+		match := fileRegex.FindStringSubmatch(line)
+		if match == nil {
+			continue
+		}
+		if err := doFile(path, match[1], w); err != nil {
+			// we will just warn, not abort the whole process
+			fmt.Fprintf(os.Stderr, "WARNING: %v\n", err)
+		}
+	}
+
+	return nil
+}
+
+func doFile(path, file string, w io.Writer) error {
+	f, err := os.Open(filepath.Join(path, file+".agc"))
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	buf := bufio.NewScanner(f)
+
+	ready := false
+	for buf.Scan() {
+		line := buf.Text()
+		if !ready {
+			// Skip past front matter text in each file
+			if !strings.HasPrefix(line, "# Page ") {
+				continue
+			}
+			ready = true
+		}
+
+		// Page break on "# Page ..." lines
+		if strings.HasPrefix(line, "# Page ") {
+			fmt.Fprintf(w, "\f")
+			line = strings.TrimPrefix(line, "# Page ")
+			fmt.Fprintf(w, "# %-100s Page %4s\n\n", file, line)
+			continue
+		}
+
+		// Some lines have additional commentary (with some HTML formatting)
+		// that weren't part of the original listings; strip them.
+		if strings.HasPrefix(line, "## ") {
+			continue
+		}
+
+		// Otherwise, pass line through
+		fmt.Fprintln(w, line)
+	}
+	if err := buf.Err(); err != nil {
+		return err
+	}
+
+	return nil
+}