smu

commit 84c908fb6f3609c25ea60c57c7009490c3c77044
parent 9f36d5824c364b655100d211cf156e7c580464c4
Author: Hiltjo Posthuma <hiltjo@codemadness.org>
Date:   Tue, 11 May 2021 01:47:41 +0200

add support for image dimensions and fix a crash

input for image dimensions:

![a](b =2x3) or
![a](b =2)

input to crash:

![a](b ")

Diffstat:
M
smu.c
 | 
17
++++++++++++++---

1 file changed, 14 insertions(+), 3 deletions(-)
diff --git a/smu.c b/smu.c
@@ -251,7 +251,9 @@ dolineprefix(const char *begin, const char *end, int newblock) {
 
 int
 dolink(const char *begin, const char *end, int newblock) {
+	long width = 0, height = 0;
 	int img, len, sep, parens_depth = 1;
+	char *numend;
 	const char *desc, *link, *p, *q, *descend, *linkend;
 	const char *title = NULL, *titleend = NULL;
 
@@ -288,9 +290,14 @@ dolink(const char *begin, const char *end, int newblock) {
 		title = p + 1;
 		/* strip trailing whitespace */
 		for(linkend = p; linkend > link && isspace(*(linkend - 1)); linkend--);
-		for(titleend = q - 1; titleend > link && isspace(*(titleend)); titleend--);
-		if(*titleend != sep) {
-			return 0;
+		for(titleend = title; titleend < q && *titleend != sep; titleend++);
+		for(p = titleend + 1; p < end && isspace(*p); p++);
+		/* image dimensions */
+		if(*p == '=') {
+			width = strtol(++p, &numend, 10);
+			p = numend;
+			if(*numend == 'x')
+				height = strtol(++p, &numend, 10);
 		}
 	}
 	else {
@@ -315,6 +322,10 @@ dolink(const char *begin, const char *end, int newblock) {
 			hprintattr(title, titleend);
 			fputs("\" ", stdout);
 		}
+		if(width > 0)
+			printf("width=\"%ld\" ", width);
+		if(height > 0)
+			printf("height=\"%ld\" ", height);
 		fputs("/>", stdout);
 	}
 	else {