Search all words, instead of substring

README.markdown

@@ -8,7 +8,7 @@ Identify a character:
 	     cpoint  dec    utf-8      html       name
 	'€'  U+20AC  8364   0xe282ac   €     EURO SIGN
 
-Or an entire string. "i" is a shortcut for "identify":
+Or an entire string. `i` is a shortcut for `identify`:
 
 	$ uni i h€łłø
 	     cpoint  dec    utf-8       html       name
@@ -36,10 +36,6 @@ Or a range from a file:
 
 Note that these are **byte** offsets, not *character* offsets:
 
-	$ uni i 'README.markdown:#128'
-
-	$ uni i 'README.markdown:#128-130'
-
 	$ uni i 'README.markdown:#130'
 	uni: WARNING: input string is not valid UTF-8
 	     cpoint  dec    utf-8       html       name
@@ -55,12 +51,38 @@ Search description:
 	     cpoint  dec    utf-8      html       name
 	'₠'  U+20A0  8352   e2 82 a0    ₠   EURO-CURRENCY SIGN
 	'€'  U+20AC  8364   e2 82 ac    €     EURO SIGN
-	'💶'  U+1F4B6 128182 f0 9f 92 b6 💶  BANKNOTE WITH EURO SIGN
 	'𐡷'  U+10877 67703  f0 90 a1 b7 𐡷  PALMYRENE LEFT-POINTING FLEURON
-	'🏰'  U+1F3F0 127984 f0 9f 8f b0 🏰  EUROPEAN CASTLE
-	'𐫱'  U+10AF1 68337  f0 90 ab b1 𐫱  MANICHAEAN PUNCTUATION FLEURON
 	'𐡸'  U+10878 67704  f0 90 a1 b8 𐡸  PALMYRENE RIGHT-POINTING FLEURON
+	'𐫱'  U+10AF1 68337  f0 90 ab b1 𐫱  MANICHAEAN PUNCTUATION FLEURON
+	'🌍'  U+1F30D 127757 f0 9f 8c 8d 🌍  EARTH GLOBE EUROPE-AFRICA
 	'🏤'  U+1F3E4 127972 f0 9f 8f a4 🏤  EUROPEAN POST OFFICE
+	'🏰'  U+1F3F0 127984 f0 9f 8f b0 🏰  EUROPEAN CASTLE
+	'💶'  U+1F4B6 128182 f0 9f 92 b6 💶  BANKNOTE WITH EURO SIGN
+
+The `s` command is a shortcut for `search`. Multiple words are matched
+individually:
+
+	$ uni s earth globe
+	      cpoint  dec    utf-8       html       name
+	'🌍'  U+1F30D 127757 f0 9f 8c 8d 🌍  EARTH GLOBE EUROPE-AFRICA
+	'🌎'  U+1F30E 127758 f0 9f 8c 8e 🌎  EARTH GLOBE AMERICAS
+	'🌏'  U+1F30F 127759 f0 9f 8c 8f 🌏  EARTH GLOBE ASIA-AUSTRALIA
+
+	$ uni s globe earth
+	      cpoint  dec    utf-8       html       name
 	'🌍'  U+1F30D 127757 f0 9f 8c 8d 🌍  EARTH GLOBE EUROPE-AFRICA
+	'🌎'  U+1F30E 127758 f0 9f 8c 8e 🌎  EARTH GLOBE AMERICAS
+	'🌏'  U+1F30F 127759 f0 9f 8c 8f 🌏  EARTH GLOBE ASIA-AUSTRALIA
 
-The `s` command is a shortcut for `search`.
+Use standard shell quoting for more literal matches:
+
+	$ uni s rightwards black arrow
+	     cpoint  dec    utf-8       html       name
+	'➡'  U+27A1  10145  e2 9e a1    ➡   BLACK RIGHTWARDS ARROW
+	'➤'  U+27A4  10148  e2 9e a4    ➤   BLACK RIGHTWARDS ARROWHEAD
+	'➥'  U+27A5  10149  e2 9e a5    ➥   HEAVY BLACK CURVED DOWNWARDS AND RIGHTWARDS ARROW
+	[..]
+
+	$ uni s 'rightwards black arrow'
+	     cpoint  dec    utf-8       html       name
+	'⮕'  U+2B95  11157  e2 ae 95    ⮕   RIGHTWARDS BLACK ARROW

uni.go

@@ -48,22 +48,42 @@ var rangeNames = []string{
 }
 
 func main() {
+	// TODO: Better argument parsing.
+	// TODO: Add option to switch off header.
+	// TODO: Add option for TSV and/or JSON output.
 	if len(os.Args) < 2 {
 		fatal(errors.New("wrong arguments"))
 	}
 
+	// TODO: idea: add command to print/search emojis?
 	switch strings.ToLower(os.Args[1]) {
 	default:
 		fatal(errors.New("wrong arguments"))
 
 	case "identify", "i":
 		identify(strings.Join(os.Args[2:], ""))
 
+	// TODO: stable output, ordered by code point (due to map it's not stable
+	// now).
 	case "search", "s":
+		if len(os.Args) < 3 {
+			fatal(errors.New("need search term"))
+		}
+
+		// TODO: don't print with 0 matches.
 		header()
-		q := strings.ToUpper(strings.Join(os.Args[2:], " "))
+		words := make([]string, len(os.Args)-2)
+		for i := range os.Args[2:] {
+			words[i] = strings.ToUpper(os.Args[i+2])
+		}
 		for cp, name := range uniData {
-			if strings.Contains(name, q) {
+			m := 0
+			for _, w := range words {
+				if strings.Contains(name, w) {
+					m++
+				}
+			}
+			if m == len(words) {
 				printEntry(cp, name)
 			}
 		}
@@ -125,6 +145,7 @@ func identify(in string) {
 		_, _ = fmt.Fprintf(os.Stderr, "uni: WARNING: input string is not valid UTF-8\n")
 	}
 
+	// TODO: don't print with 0 matches.
 	header()
 	for _, c := range in {
 		find := fmt.Sprintf("%04X", c)
@@ -159,6 +180,7 @@ func inRange(c rune) string {
 	return ""
 }
 
+// TODO: check terminal size; don't print full descriptin if it doesn't fit.
 func printEntry(cp, name string) {
 	r, _ := strconv.ParseInt(cp, 16, 64)
 	rs := strconv.FormatInt(r, 10)