Update parse-formula-intermediate-representation.typ

Author: tryptophawa

src/parse-formula-intermediate-representation.typ

@@ -8,24 +8,24 @@
 #let patterns = (
   element: regex(
     "^([A-Z][a-z]?)" +
-    "(?:(_?\\d+)|(\\^\\.?[+-]?\\d+[+-]?|\\^\\.?[+-.]{1}|\\^?[+-]?[IV]+|\\.?[+-]{1}\\d?))?" +
-    "(?:(_?\\d+)|(\\^\\.?[+-]?\\d+[+-]?|\\^\\.?[+-.]{1}|\\^?[+-]?[IV]+|\\.?[+-]{1}\\d?))?" +
-    "(\\^\\^[+-]?(?:[IViv]{1,3}|\\d+))?"
+    "(?:(_?\d+)|(\^\.?[+-]?\d+[+-]?|\^\.?[+-.]{1}|\^?[+-]?[IV]+|\.?[+-]{1}\d?))?" +
+    "(?:(_?\d+)|(\^\.?[+-]?\d+[+-]?|\^\.?[+-.]{1}|\^?[+-]?[IV]+|\.?[+-]{1}\d?))?" +
+    "(\^\^[+-]?(?:[IViv]{1,3}|\d+))?"
   ),
   group: regex(
-    "^((?:\\([^()]*(?:\\([^()]*\\)[^()]*)*\\))|(?:\\{[^{}]*(?:\\{[^{}]*\\}[^{}]*)*\\})|(?:\\[[^\\[\\]]*(?:\\[[^\\[\\]]*\\][^\\[\\]]*)*\\]))" +
-    "(?:(_?\\d+)|(\\^\\.?[+-]?\\d+[+-]?|\\^\\.?[+-.]{1}|[+-]{1}\\d?))?" +
-    "(?:(_?\\d+)|(\\^\\.?[+-]?\\d+[+-]?|\\^\\.?[+-.]{1}|[+-]{1}\\d?))?"
+    "^((?:\([^()]*(?:\([^()]*\)[^()]*)*\))|(?:\{[^{}]*(?:\{[^{}]*\}[^{}]*)*\})|(?:\[[^\[\]]*(?:\[[^\[\]]*\][^\[\]]*)*\]))" +
+    "(?:(_?\d+)|(\^\.?[+-]?\d+[+-]?|\^\.?[+-.]{1}|[+-]{1}\d?))?" +
+    "(?:(_?\d+)|(\^\.?[+-]?\d+[+-]?|\^\.?[+-.]{1}|[+-]{1}\d?))?"
   ),
-  reaction-plus: regex("^\\s*\\+\\s*"),
+  reaction-plus: regex("^\s*\+\s*"),
   reaction-arrow: regex(
-    "^\\s*(<->|↔|<=>|⇔|->|→|<-|←|=>|⇒|<=|⇐|-/?\\>|</-)" +
-    "(?:\\[([^\\[\\]]*)\\])?" +
-    "(?:\\[([^\\[\\]]*)\\])?" +
-    "\\s*"
+    "^\s*(<->|↔|<=>|⇔|->|→|<-|←|=>|⇒|<=|⇐|-/?\>|</-)" +
+    "(?:\[([^\[\]]*)\])?" +
+    "(?:\[([^\[\]]*)\])?" +
+    "\s*"
   ),
-  math: regex("^\\$[^$]*?\\$"),
-  state: regex("^\\((s|l|g|aq|solid|liquid|gas|aqueous|aqua)\\)"),
+  math: regex("^\$[^$]*?\$"),
+  state: regex("^\((s|l|g|aq|solid|liquid|gas|aqueous|aqua)\)"),
 )
 
 #let get-count-and-charge(count1, count2, charge1, charge2) = {