Enables tag matcher and

https://github.com/Baystation12/Baystation12/pull/11642

.travis.yml

@@ -31,7 +31,9 @@ script:
   - (! grep 'step_[xy]' maps/**/*.dmm)
   - (! find nano/templates/ -type f -exec md5sum {} + | sort | uniq -D -w 32 | grep nano)
   - (! grep -E "<\s*span\s+class\s*=\s*('[^'>]+|[^'>]+')\s*>" **/*.dm)
+  - awk -f tools/indentation.awk **/*.dm
   - md5sum -c - <<< "88490b460c26947f5ec1ab1bb9fa9f17 *html/changelogs/example.yml"
   - (num=`grep -E '\\\\(red|blue|green|black|b|i[^mc])' **/*.dm | wc -l`; echo "$num escapes (expecting ${MACRO_COUNT} or less)"; [ $num -le ${MACRO_COUNT} ])
   - source $HOME/BYOND-${BYOND_MAJOR}.${BYOND_MINOR}/byond/bin/byondsetup
+  - python tools/TagMatcher/tag-matcher.py ../..
   - DreamMaker polaris.dme

tools/indentation.awk

@@ -0,0 +1,32 @@
+#! /usr/bin/awk -f
+
+# Finds incorrect indentation of absolute path definitions in DM code
+# For example, the following fails on the indicated line:
+
+#/datum/path/foo
+#	x = "foo"
+# /datum/path/bar // FAIL
+#	x = "bar"
+
+{
+	if ( comma != 1 ) { # No comma/'list('/etc at the end of the previous line
+		if ( $0 ~ /^[\t ]+\/[^/*]/ ) { # Current line's first non-whitespace character is a slash, followed by something that is not another slash or an asterisk
+			print FILENAME, ":", $0
+			fail = 1
+		}
+	}
+
+	if ($0 ~ /,[\t ]*\\?\r?$/ || # comma at EOL
+	    $0 ~ /list[\t ]*\([\t ]*\\?\r?$/ || # start of a list()
+	    $0 ~ /pick[\t ]*\([\t ]*\\?\r?$/ ) { # start of a pick()
+		comma = 1
+	} else {
+		comma = 0
+	}
+}
+
+END {
+	if ( fail ) {
+		exit 1
+	}
+}