From 4d4de616f2181fdfcbcc1cd3180689d9e258fcc3 Mon Sep 17 00:00:00 2001
From: Martin Mares <mj@ucw.cz>
Date: Wed, 12 Aug 2015 12:22:34 +0200
Subject: [PATCH] Inline function calls @f(...) now recognize quoted string
 arguments

@f(":-(") does not fail any longer.

Based on a patch from KSP repository by Jirka Setnicka.
---
 UCW/Temple.pm | 25 ++++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/UCW/Temple.pm b/UCW/Temple.pm
index 1774fff..28f9064 100644
--- a/UCW/Temple.pm
+++ b/UCW/Temple.pm
@@ -79,6 +79,29 @@ sub get_nested($$$) {
 	return $z;
 }
 
+# In addition to get_nested(), skip single-quoted and double-quoted string literals
+sub get_function_args($$$) {
+	my ($r, $left, $right) = @_;
+	pos $$r = pos($$r) - 1;
+	my $z = "";
+	my $nest = 0;
+	do {
+		if ($$r =~ /\G([^$left$right"']+)/cgs
+			|| $$r =~/\G("(\\.|[^"\\])*")/cgs		# double-quoted string
+			|| $$r =~/\G('(\\.|[^'\\])*')/cgs		# single-quoted string
+		) {
+		} elsif ($$r =~ /\G([$left])/cgs) {
+			$nest++;
+		} elsif ($$r =~ /\G([$right])/cgs) {
+			$nest--;
+		} else {
+			error "File ended when looking for matching $right";
+		}
+		$z .= $1;
+	} while ($nest);
+	return $z;
+}
+
 sub eval_if_ok($) {
 	if ($cond[0] > 0) {
 		my $x = shift;
@@ -162,7 +185,7 @@ sub parse_string($$) {
 			out (defined($arguments->{$x}) ? $arguments->{$x} : "");
 		} elsif ($t =~ /\G\@(\w+)\(/cgs) {
 			my $func = $1;
-			my $args = get_nested(\$t, '(', ')');
+			my $args = get_function_args(\$t, '(', ')');
 			eval_func($func, $args);
 		} elsif ($t =~ /\G\@(\w+)([^\n]*)\n/cgs) {
 			eval_func($1, "($2)");
-- 
2.39.5