utils

commit: d20cc967c695e15d55cc4cfd197b00003f096e0e
parent 7ece8e7ec02bc251c7a297771cdd3538bfc24fcb
Author: Haelwenn (lanodan) Monnier <contact@hacktivis.me>
Date:   Wed,  2 Jun 2021 09:54:53 +0200

bin/xcd: Put colors in the plain-text area as well

Diffstat:
M
bin/xcd.c
78
++++++++++++++++++++++++++++++++++++++++++++++++++++++------------------------
A
test-bin/xcd.fixture
19
+++++++++++++++++++
M
test-bin/xcd.t
122
+++----------------------------------------------------------------------------

3 files changed, 77 insertions(+), 142 deletions(-)
diff --git a/bin/xcd.c b/bin/xcd.c
@@ -10,26 +10,58 @@
 #include <string.h> /* memset() */
 
 #define LANODAN_XCD_RESET printf("");
-#define LANODAN_XCD_PRINT printf(" >%s<", line);
 
-void
-rainbow(double freq, unsigned char i)
+struct rgb
+{
+	uint8_t red, green, blue;
+};
+
+struct rgb
+rgb_char(unsigned char i)
 {
+	double freq = 0.018;
+
 	if(i == 0)
 	{
-		printf("");
+		return (struct rgb){64, 64, 64};
 	}
 	else
 	{
-		uint8_t red, green, blue;
+		struct rgb color;
 		double pi = 3.14159;
 
-		red   = sin(freq * i + 0 * pi / 3) * 127 + 128;
-		green = sin(freq * i + 2 * pi / 3) * 127 + 128;
-		blue  = sin(freq * i + 4 * pi / 3) * 127 + 128;
+		color.red   = sin(freq * i + 0 * pi / 3) * 127 + 128;
+		color.green = sin(freq * i + 2 * pi / 3) * 127 + 128;
+		color.blue  = sin(freq * i + 4 * pi / 3) * 127 + 128;
+
+		return color;
+	}
+}
+
+void
+print_hex_rgb(unsigned char c)
+{
+	struct rgb color = rgb_char(c);
+	printf("[38;2;%d;%d;%dm%02hhx ", color.red, color.green, color.blue, c);
+}
+
+void
+print_plain_rgb(unsigned char *line, size_t len)
+{
+	unsigned char c;
 
-		printf("[38;2;%02d;%02d;%02dm", red, green, blue);
+	LANODAN_XCD_RESET
+	printf(" >");
+
+	for(size_t i = 0; i < len; i++)
+	{
+		c = line[i];
+		struct rgb color = rgb_char(c);
+		printf("[38;2;%d;%d;%dm%c", color.red, color.green, color.blue, isprint(c) ? c : '.');
 	}
+
+	LANODAN_XCD_RESET
+	printf("<");
 }
 
 int
@@ -37,34 +69,32 @@ main(void)
 {
 	int cols       = 0;
 	int line_width = 16;
-	double freq    = 0.018;
 	char line[line_width];
 	unsigned char c;
 	unsigned int bytes = 0;
+	struct rgb pos_rgb;
 
 	memset(&line, 0, line_width);
 
 	LANODAN_XCD_RESET
 
-	rainbow(freq, bytes);
-	printf("%06x ", bytes);
+	pos_rgb = rgb_char(bytes);
+	printf("[38;2;%d;%d;%dm%06x ", pos_rgb.red, pos_rgb.green, pos_rgb.blue, bytes);
 	while(fread(&c, 1, 1, stdin) > 0)
 	{
 		if(cols >= line_width)
 		{
-			cols = 0;
-
-			LANODAN_XCD_RESET
-			LANODAN_XCD_PRINT
+			print_plain_rgb(&line, (size_t)cols);
 			memset(&line, 0, line_width);
 
-			rainbow(freq, bytes);
-			printf("\n%06x ", bytes);
+			pos_rgb = rgb_char(bytes);
+			printf("\n[38;2;%d;%d;%dm%06x ", pos_rgb.red, pos_rgb.green, pos_rgb.blue, bytes);
+
+			cols = 0;
 		}
 
-		rainbow(freq, c);
-		printf("%02hhx ", c);
-		line[cols] = isprint(c) ? c : '.';
+		print_hex_rgb(c);
+		line[cols] = c;
 
 		cols++;
 		bytes++;
@@ -75,10 +105,10 @@ main(void)
 		printf("   ");
 
 	LANODAN_XCD_RESET
-	LANODAN_XCD_PRINT
+	print_plain_rgb(&line, (size_t)cols);
 
-	rainbow(freq, bytes);
-	printf("\n%06x\n", bytes);
+	pos_rgb = rgb_char(bytes);
+	printf("\n[38;2;%d;%d;%dm%06x\n", pos_rgb.red, pos_rgb.green, pos_rgb.blue, bytes);
 	LANODAN_XCD_RESET
 
 	return 0;
diff --git a/test-bin/xcd.fixture b/test-bin/xcd.fixture
@@ -0,0 +1,18 @@
+000000 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f  >................<
+000010 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f  >................<
+000020 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f  > !"#$%&'()*+,-./<
+000030 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f  >0123456789:;<=>?<
+000040 40 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f  >@ABCDEFGHIJKLMNO<
+000050 50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f  >PQRSTUVWXYZ[\]^_<
+000060 60 61 62 63 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f  >`abcdefghijklmno<
+000070 70 71 72 73 74 75 76 77 78 79 7a 7b 7c 7d 7e 7f  >pqrstuvwxyz{|}~.<
+000080 80 81 82 83 84 85 86 87 88 89 8a 8b 8c 8d 8e 8f  >................<
+000090 90 91 92 93 94 95 96 97 98 99 9a 9b 9c 9d 9e 9f  >................<
+0000a0 a0 a1 a2 a3 a4 a5 a6 a7 a8 a9 aa ab ac ad ae af  >................<
+0000b0 b0 b1 b2 b3 b4 b5 b6 b7 b8 b9 ba bb bc bd be bf  >................<
+0000c0 c0 c1 c2 c3 c4 c5 c6 c7 c8 c9 ca cb cc cd ce cf  >................<
+0000d0 d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 da db dc dd de df  >................<
+0000e0 e0 e1 e2 e3 e4 e5 e6 e7 e8 e9 ea eb ec ed ee ef  >................<
+0000f0 f0 f1 f2 f3 f4 f5 f6 f7 f8 f9 fa fb fc fd fe ff  >................<
+000100
++
\ No newline at end of file
diff --git a/test-bin/xcd.t b/test-bin/xcd.t
@@ -10,127 +10,13 @@ q6ytrq+wsbKztLW2t7i5uru8vb6/wMHCw8TFxsfIycrLzM3Oz9DR0tPU1dbX2Nna29zd3t/g4eLj
 EOF
 ) | ../bin/xcd > xcd.out || exit 1
 
-# Original xcd.out output
-(
-base64 -d <<EOF
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-EOF
-) | diff - xcd.out
+diff xcd.fixture xcd.out
 
 if [[ $? -eq 0 ]]
 then
+	echo "OK: xcd"
 	rm xcd.out
 else
-	echo "Test failed!"
+	echo ""
+	echo "FAILED: xcd"
 fi