work on parser

Author: thomasjball

mcparser.ts

@@ -12,4 +12,54 @@
 namespace microcode {
     // resolveTooltip to go from Tid to string (replace space by -)
     // reverseTooltip to go from string to tid
+
+    export function parse(str: string) {
+        const token2tile = (tok: string) => {
+            const tid = tooltip2tid(tok)
+            // check to see if field editor needed
+            const tile = getEditor(tid)
+            if (tile instanceof ModifierEditor) {
+                return tile.getNewInstance()
+            } else {
+                return tid
+            }
+        }
+        const placeTile = (tile: Tile, rule: RuleDefn) => {
+            const tid = getTid(tile)
+            if (isFilter(tid)) rule.push(tile, "filters", false)
+            else if (isModifier(tid)) rule.push(tile, "modifiers", false)
+            else rule.push(tile, "actuators", false)
+        }
+        const prog = new ProgramDefn()
+        prog.pages = []
+        const lines = str.split("\n")
+        let currPage: PageDefn = undefined
+        let currRule: RuleDefn = undefined
+        for (let i = 0; i < lines.length; i++) {
+            const line = lines[0].split(" ")
+            if (line[0] == "Page") {
+                currPage = new PageDefn()
+            } else if (line[0] == "EOP") {
+                prog.pages.push(currPage)
+                currPage = undefined
+            } else if (line[0] == "EOR") {
+                currPage.rules.push(currRule)
+                currRule = undefined
+            } else {
+                if (!currRule) {
+                    currRule = new RuleDefn()
+                    currRule.sensors.push(token2tile(line[0]) as number)
+                    line.shift()
+                }
+                let tok = line.shift()
+                while (tok) {
+                    const tile = token2tile(tok)
+                    placeTile(tile, currRule)
+                    if (tile instanceof ModifierEditor) {
+                        // TODO: process the field, based on context
+                    } else tok = line.shift()
+                }
+            }
+        }
+    }
 }