minor cleanup and usability improvement

.gitignore

@@ -1 +1,2 @@
 /a.out
+/pride-c

README.md

@@ -1,5 +1,14 @@
 
 # Pride! for the tty
 
-A C utility to display flags in 256-color terminals.
+A utility to display pride flags in 8- or 256- color terminals.
+
+This is a C version of my [pride](https://git.vwolfe.io/valerie/pride) utility,
+focused on compatibility.
+
+## Goals
+
+- Compatible: Runs, compiles, and correctly displays on almost anything.
+- Low-dependency: Only uses the standard library.
+- Small: Low compiled binary size.
 

basic.c

@@ -0,0 +1,93 @@
+#include "basic.h"
+
+#include "draw.h"
+
+void rainbow_8() {
+	const color colors [] = {
+		RED,
+		L_RED,
+		L_YELLOW,
+		GREEN,
+		BLUE,
+		MAGENTA
+	};
+	draw(6, colors);
+}
+
+void aroace_8() {
+	const color colors [] = {
+		YELLOW,
+		L_YELLOW,
+		WHITE,
+		L_CYAN,
+		BLUE
+	};
+	draw(5, colors);
+}
+
+void bisexual_8() {
+	const color colors [] = {
+		RED,
+		RED,
+		MAGENTA,
+		BLUE,
+		BLUE
+	};
+	draw(5, colors);
+}
+
+void gay_8() {
+	const color colors [] = {
+		CYAN,
+		L_CYAN,
+		WHITE,
+		L_BLUE,
+		BLUE
+	};
+	draw(5, colors);
+}
+
+void lesbian_8() {
+	const color colors [] = {
+		RED,
+		L_RED,
+		WHITE,
+		L_MAGENTA,
+		MAGENTA
+	};
+	draw(5, colors);
+}
+
+void nonbinary_8() {
+	const color colors [] = {
+		L_YELLOW,
+		WHITE,
+		MAGENTA,
+		BLACK
+	};
+	draw(4, colors);
+}
+
+void pansexual_8() {
+	const color colors [] = {
+		MAGENTA,
+		MAGENTA,
+		L_YELLOW,
+		L_YELLOW,
+		CYAN,
+		CYAN
+	};
+	draw(6, colors);
+}
+
+void transgender_8() {
+	const color colors [] = {
+		L_CYAN,
+		L_MAGENTA,
+		WHITE,
+		L_MAGENTA,
+		L_CYAN
+	};
+	draw(5, colors);
+}
+

basic.h

@@ -0,0 +1,28 @@
+#pragma once
+
+#define BLACK		0
+#define RED			1
+#define GREEN		2
+#define YELLOW		3
+#define BLUE		4
+#define MAGENTA		5
+#define CYAN		6
+#define GRAY		7
+#define L_BLACK		8
+#define L_RED		9
+#define L_GREEN		10
+#define L_YELLOW	11
+#define L_BLUE		12
+#define L_MAGENTA	13
+#define L_CYAN		14
+#define WHITE		15
+
+void rainbow_8();
+void aroace_8();
+void bisexual_8();
+void gay_8();
+void lesbian_8();
+void nonbinary_8();
+void pansexual_8();
+void transgender_8();
+

draw.c

@@ -0,0 +1,10 @@
+#include "draw.h"
+
+#include <stdio.h>
+
+void draw(const unsigned short int len, const color colors []) {
+	for(int i = 0; i < len; i++) {
+		printf(ANSI "%dm" STRIPE, colors[i]);
+	}
+}
+

draw.h

@@ -0,0 +1,10 @@
+#pragma once
+
+#define ANSI		"\x1b[38;5;"
+#define COLOR(n)	ANSI #n "m"
+#define STRIPE		"██████████████████\n"
+
+typedef unsigned short int color;
+
+void draw(const unsigned short int len, const color colors[]);
+

full.c

@@ -0,0 +1,92 @@
+#include "full.h"
+
+#include "draw.h"
+
+void rainbow_256() {
+	const color colors [] = {
+		196,		//	red
+		208,		//	orange
+		220,		//	yellow
+		28,			//	green
+		21,			//	blue
+		90			//	purple
+	};
+	draw(6, colors);
+}
+
+void aroace_256() {
+	const color colors [] = {
+		172,		//	orange
+		184,		//	yellow
+		255,		//	white
+		38,			//	blue
+		17			//	navy
+	};
+	draw(5, colors);
+}
+
+void bisexual_256() {
+	const color colors [] = {
+		161,		//	magenta
+		161,
+		91,			//	purple
+		21,
+		21			//	blue
+	};
+	draw(5, colors);
+}
+
+void gay_256() {
+	const color colors [] = {
+		29,
+		49,			//	greens
+		123,
+		255,		//	white
+		75,
+		63,			//	blues
+		56
+	};
+	draw(7, colors);
+}
+
+void lesbian_256() {
+	const color colors [] = {
+		202,		//	orange
+		209,		//	tangerine
+		255,		//	white
+		205,		//	pink
+		161			//	magenta
+	};
+	draw(5, colors);
+}
+
+void nonbinary_256() {
+	const color colors [] = {
+		226,		//	yellow
+		255,		//	white
+		134,		//	purple
+		16			//	black
+	};
+	draw(4, colors);
+}
+
+void pansexual_256() {
+	const color colors [] = {
+		161, 161,	//	magenta
+		220, 220,	//	yellow
+		45, 45		//	cyan
+	};
+	draw(6, colors);
+}
+
+void transgender_256() {
+	const color colors [] = {
+		45,			//	blue
+		213,		//	pink
+		255,		//	white
+		213,		//	pink
+		45			//	blue
+	};
+	draw(5, colors);
+}
+

full.h

@@ -0,0 +1,13 @@
+#pragma once
+
+#include "draw.h"
+
+void rainbow_256();
+void aroace_256();
+void bisexual_256();
+void gay_256();
+void lesbian_256();
+void nonbinary_256();
+void pansexual_256();
+void transgender_256();
+

justfile

@@ -0,0 +1,4 @@
+
+build:
+	gcc -s main.c draw.c basic.c full.c -o pride-c
+

main.c

@@ -1,25 +1,14 @@
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 
-#define VERSION		"0.0.1"
-#define INDENT		"   "
+#include "basic.h"
+#include "full.h"
+
+#define VERSION		"0.0.4"
 
 #define RESET		"\x1b[0m"
 
-#define COLOR(n)	"\x1b[38;5;" #n "m"
-#define BLACK		"\x1b[38;5;0m"
-#define WHITE		"\x1b[38;5;255m"
-
-#define STRIPE		"██████████████████\n"
-
-#define RAINBOW		"rainbow"
-#define AROACE		"aroace"
-#define BISEXUAL	"bisexual"
-#define LESBIAN		"lesbian"
-#define NONBINARY	"nonbinary"
-#define PANSEXUAL	"pansexual"
-#define TRANSGENDER	"transgender"
-
 void version() {
 	printf("pride-c v" VERSION "\n");
 }
@@ -33,90 +22,114 @@ void help() {
 		"usage: pride [name]\n\n"
 
 		"flag names:\n"
-		INDENT AROACE "\n"
-		INDENT BISEXUAL "\n"
-		INDENT LESBIAN "\n"
-		INDENT NONBINARY "\n"
-		INDENT PANSEXUAL "\n"
-		INDENT RAINBOW "\n"
-		INDENT TRANSGENDER "\n"
+		"   aroace\n"
+		"   bisexual\n"
+		"   gay\n"
+		"   lesbian\n"
+		"   nonbinary\n"
+		"   pansexual\n"
+		"   rainbow\n"
+		"   transgender\n"
 	);
 }
 
+unsigned long djb_hash(char *string) {
+	unsigned long output = 5381;
+	int c;
+
+	while((c = *string++))
+		output = ((output << 5) + output) + c;
+
+	return output;
+}
+
 int main(int argc, char **argv) {
 	//	get argv[1] or fall back to RAINBOW
 	char *flag;
 	if(argc > 1) { flag = argv[1]; }
-	else { flag = RAINBOW; }
+	else { flag = ""; }
 
-	//	handle flags
-	if(strcmp(flag, "--version") == 0) {
-		version();
-		return 0;
-	} else if(strcmp(flag, "--help") == 0) {
-		help();
-		return 0;
+	int color_mode = 0;
+	char * colorterm = getenv("COLORTERM");
+	if(colorterm != NULL && strcmp(colorterm, ""))
+		color_mode = 1;
+
+	unsigned long flag_hash = djb_hash(flag);
+
+	char *output;
+	switch(flag_hash) {
+		//	- RAINBOW -
+		case 229480993726103lu:			//	'rainbow'
+		case 5381lu:					//	(empty)
+			if(color_mode)	rainbow_256();
+			else			rainbow_8();
+			break;
+
+		//	- ARO/ACE -
+		case 6953324567312lu:			//	'aroace'
+		case 22945708850429lu:			//	'aro-ace'
+			if(color_mode)	aroace_256();
+			else			aroace_8();
+			break;
+
+		//	- BISEXUAL -
+		case 7572201611094690lu:		//	'bisexual'
+		case 5863248lu:					//	'bi'
+			if(color_mode)	bisexual_256();
+			else			bisexual_8();
+			break;
+
+		//	- GAY -
+		case 193492486lu:				//	'gay'
+		case 193499371lu:				//	'mlm'
+			if(color_mode)	gay_256();
+			else			gay_8();
+			break;
+
+		//	- LESBIAN -
+		case 229473412894979lu:			//	'lesbian'
+		case 193510271lu:				//	'wlw'
+			if(color_mode)	lesbian_256();
+			else			lesbian_8();
+			break;
+
+		//	- NONBINARY -
+		case 249899779187415445lu:		//	'nonbinary'
+		case 5863637lu:					//	'nb'
+			if(color_mode)	nonbinary_256();
+			else			nonbinary_8();
+			break;
+
+		//	- PANSEXUAL -
+		case 249901996007388822lu:		//	'pansexual'
+		case 193502276lu:				//	'pan'
+			if(color_mode)	pansexual_256();
+			else			pansexual_8();
+			break;
+
+		//	- TRANSGENDER -
+		case 13895753452281080578lu:	//	'transgender'
+		case 210729322765lu:			//	'trans'
+			if(color_mode)	transgender_256();
+			else			transgender_8();
+			break;
+
+
+		//	handle flags, but in the command-line sense
+		case 6951207451432lu:			//	--help
+		case 5861498lu:					//	-h
+			help();
+			break;
+		case 249805560270004805lu:		//	--version
+		case 5861512lu:					//	-v
+			version();
+			break;
+
+		default:
+			printf("pride-c: no flag '%s' found.", flag);
+			return 1;
 	}
 
-	if(strcmp(flag, RAINBOW) == 0) {			//	- RAINBOW -
-		printf(COLOR(196) STRIPE);				//	red
-		printf(COLOR(208) STRIPE);				//	orange
-		printf(COLOR(220) STRIPE);				//	yellow
-		printf(COLOR(28) STRIPE);				//	green
-		printf(COLOR(21) STRIPE);				//	blue
-		printf(COLOR(90) STRIPE);				//	purple
-	}
-
-	else if(strcmp(flag, AROACE) == 0) {		//	- ARO/ACE -
-		printf(COLOR(172) STRIPE);				//	orange
-		printf(COLOR(184) STRIPE);				//	yellow
-		printf(WHITE STRIPE);					//	white
-		printf(COLOR(38) STRIPE);				//	blue
-		printf(COLOR(17) STRIPE);				//	navy
-	}
-
-	else if(strcmp(flag, BISEXUAL) == 0) {		//	- BISEXUAL -
-		printf(COLOR(161) STRIPE STRIPE);		//	maroon
-		printf(COLOR(91) STRIPE);				//	purple
-		printf(COLOR(21) STRIPE STRIPE);		//	blue
-	}
-
-	else if(strcmp(flag, LESBIAN) == 0) {		//	- LESBIAN -
-		printf(COLOR(202) STRIPE);				//	orange
-		printf(COLOR(209) STRIPE);				//	tangerine
-		printf(WHITE STRIPE);					//	white
-		printf(COLOR(205) STRIPE);				//	pink
-		printf(COLOR(161) STRIPE);				//	magenta
-	}
-
-	else if(strcmp(flag, NONBINARY) == 0) {		//	- NONBINARY -
-		printf(COLOR(226) STRIPE);				//	yellow
-		printf(WHITE STRIPE);					//	white
-		printf(COLOR(134) STRIPE);				//	purple
-		printf(BLACK STRIPE);					//	black
-	}
-
-	else if(strcmp(flag, PANSEXUAL) == 0) {		//	- PANSEXUAL -
-		printf(COLOR(161) STRIPE STRIPE);		//	magenta
-		printf(COLOR(220) STRIPE STRIPE);		//	yellow
-		printf(COLOR(45) STRIPE STRIPE);		//	cyan
-	}
-
-	else if(strcmp(flag, TRANSGENDER) == 0) {	//	- TRANSGENDER -
-		char *blue = COLOR(45) STRIPE;
-		char *pink = COLOR(177) STRIPE;
-		printf(blue);
-		printf(pink);
-		printf(WHITE STRIPE);
-		printf(pink);
-		printf(blue);
-	}
-
-
-	else {
-		printf("pride-c: no flag '%s' found.", flag);
-		return 1;
-	}
 	printf(RESET);
 	return 0;
 }

man/pride-c.6

@@ -0,0 +1,46 @@
+.Dd $Mdocdate$
+.Dt PRIDE-C 6
+.Os
+.Sh NAME
+.Nm pride-c
+.Nd shows pride flags in the terminal using ANSI color sequences.
+.Sh SYNOPSIS
+.Nm
+.Op Ar flag
+.Nm
+.Op Fl -help | Fl -version
+.Sh DESCRIPTION
+.Nm
+displays pride flags for reduced color terminals. Outputs 8- or 256-color flags depending on if
+.Ev COLORTERM
+is set. If no
+.Ar flag
+is provided,
+.Nm
+defaults to 'rainbow'. The following flags are implemented:
+.Pp
+.Bl -tag -compact
+.It aroace, aro-ace
+.It bisexual, bi
+.It gay, mlm
+.It lesbian, wlw
+.It nonbinary, nb
+.It pansexual, pan
+.It transgender, trans
+.El
+.Sh ENVIRONMENT
+.Bl -tag -width Ds
+.It COLORTERM
+Should be set by your terminal if it supports colors. If set,
+.Nm
+will use 256-color mode.
+.Sh SEE ALSO
+.Xr pride 6
+.Sh HISTORY
+.Nm
+is a C port of
+.Xr pride 6
+made for reduced color terminals and embedded systems.
+.Sh AUTHORS
+.An -nosplit
+.An Valerie Wolfe Aq Mt sleeplessval@gmail.com