84 lines
1.7 KiB
Go
84 lines
1.7 KiB
Go
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// For more tutorials: https://blog.learngoprogramming.com
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//
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// Copyright © 2018 Inanc Gumus
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// Learn Go Programming Course
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// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
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//
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package main
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import (
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"fmt"
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"os"
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"strconv"
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"strings"
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)
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const (
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asciiStart = '\u0001' // 1
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asciiStop = '\u007f' // 127
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cols = 1
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)
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func main() {
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// DETERMINE START - STOP POSITIONS
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var start, stop int
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if args := os.Args[1:]; len(args) == 2 {
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start, _ = strconv.Atoi(args[0])
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stop, _ = strconv.Atoi(args[1])
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}
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if start == 0 || stop == 0 {
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start, stop = asciiStart, asciiStop
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}
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// PRINT HEADER
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for i := 0; i < cols; i++ {
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fmt.Printf("| %-6s %-8s %-8s %-14s", "rune", "dec", "code", "bytes")
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}
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fmt.Print("\n", strings.Repeat("-", 40*cols), "\n")
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// PRINT TABLE
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for n, l := start, 0; n <= stop; n++ {
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// draw the line
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fmt.Printf("| %-6q %-8d %-8U % -14x", n, n, n, string(n))
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// go to next line if columns are consumed
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if l++; l%cols == 0 {
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fmt.Println()
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continue
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}
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}
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fmt.Println()
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}
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/*
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EXAMPLE BLOCKS
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1 byte
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------------------------------------------------------------
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asciiStart = '\u0001' -> 32
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asciiStop = '\u007f' -> 127
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2 bytes
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------------------------------------------------------------
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latin1Start = '\u0080' -> 128
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latin1Stop = '\u00ff' -> 255
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3 bytes
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------------------------------------------------------------
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dingbatStart = '\u2700' -> 9984
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dingbatStop = '\u27bf' -> 10175
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4 bytes
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------------------------------------------------------------
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emojiStart = '\U0001f600' -> 128512
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emojiStop = '\U0001f64f' -> 128591
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transportStart = '\U0001F680' -> 128640
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transportStop = '\U0001f6ff' -> 128767
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BIG THANK YOU! -> https://unicode-table.com/
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*/
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