From: Wolfram Sang <redacted>
Date: Sat, 9 Jan 2016 22:17:02 +0000 (+0100)
Subject: input: vcd: support 1 bit vectors
X-Git-Tag: libsigrok-0.4.0~18
X-Git-Url: https://sigrok.org/gitweb/?p=libsigrok.git;a=commitdiff_plain;h=34724ffa340b4df9706aa02d686563ed72b7840f

input: vcd: support 1 bit vectors

Use the new process_bit() function to parse 1 bit vectors, too.

This is the first step to fix bug #723. Minimal testcase vcd:

$timescale 1 ns $end
$var wire 1 n0 addr_0 $end
$var wire 1 n1 addr_1 $end
$enddefinitions $end
#0
0n0
b1 n1
#1
1n0
b0 n1
#2
0n0
b1 n1
#3
1n0
b0 n1

Signed-off-by: Wolfram Sang <redacted>
---

diff --git a/src/input/vcd.c b/src/input/vcd.c
index 47511c41..a9d3c45c 100644
--- a/src/input/vcd.c
+++ b/src/input/vcd.c
@@ -428,14 +428,28 @@ static void parse_contents(const struct sr_input *in, char *data)
 				inc->skip_until_end = TRUE;
 				break;
 			}
-		} else if (strchr("bBrR", tokens[i][0]) != NULL) {
-			sr_dbg("Vector values not supported yet");
+		} else if (strchr("rR", tokens[i][0]) != NULL) {
+			sr_dbg("Real type vector values not supported yet!");
 			if (!tokens[++i])
 				/* No tokens left, bail out */
 				break;
 			else
 				/* Process next token */
 				continue;
+		} else if (strchr("bB", tokens[i][0]) != NULL) {
+			bit = (tokens[i][1] == '1');
+
+			/*
+			 * Bail out if a) char after 'b' is NUL, or b) there is
+			 * a second character after 'b', or c) there is no
+			 * identifier.
+			 */
+			if (!tokens[i][1] || tokens[i][2] || !tokens[++i]) {
+				sr_dbg("Unexpected vector format!");
+				break;
+			}
+
+			process_bit(inc, tokens[i], bit);
 		} else if (strchr("01xXzZ", tokens[i][0]) != NULL) {
 			char *identifier;