From b62c8fd41cf32ea33de9d4f74415c665d315ecb1 Mon Sep 17 00:00:00 2001
From: Holden Rohrer <hr@hrhr.dev>
Date: Thu, 16 Jul 2020 20:48:14 -0400
Subject: search.js uses `space` regexes now, improving nword match

---
 examples/jarvis.js |  4 +---
 examples/nword.js  |  4 +---
 space.js           | 38 ++++++++++++++++++++++++++++++++++++++
 tools/search.js    |  2 +-
 4 files changed, 41 insertions(+), 7 deletions(-)

diff --git a/examples/jarvis.js b/examples/jarvis.js
index 7268ad2..ac27cea 100644
--- a/examples/jarvis.js
+++ b/examples/jarvis.js
@@ -114,10 +114,8 @@ function protectArea(send, tiles, locs, id, space, ctrl){
   main.enqueue(writelist);
 }
 
-var search = new Space();
-search.adhoc('jarvis'); // The search space is the word jarvis, so whenever that's caught, a relevant function can be called.
 var read = new Search();
-read.match(search, respond);
+read.match(['jarvis'], respond);
 var expire = {};
 
 main.on('fallback', (send, tiles, locs) => { // tries to detect the prompt ('jarvis') and calls respond if found.
diff --git a/examples/nword.js b/examples/nword.js
index 5926e42..9367362 100644
--- a/examples/nword.js
+++ b/examples/nword.js
@@ -38,9 +38,7 @@ main.on('tileUpdate', (send, source, tiles)=>{
   }
 });
 
-search.match(new Space().adhoc('nigger'), clean);
-search.match(new Space().adhoc('Nigger'), clean);
-search.match(new Space().adhoc('NIGGER'), clean);
+search.match(['[Nn] *[Ii] *[Gg] *[Gg] *[Ee] *[Rr]'], clean);
 
 let response = new Space().adhoc('   I am a racist   ');
 function clean(coord, send){
diff --git a/space.js b/space.js
index 65b5355..c5a0927 100644
--- a/space.js
+++ b/space.js
@@ -138,6 +138,44 @@ function Space(){
     return loc;
   }
 
+  this.regex = function(strlines){
+    if (typeof strlines[0] !== 'string') throw ".regex needs arr of strings";
+    let lines = [];
+    for (let i = 0; i < strlines.length; i++) {
+        lines.push(new RegExp(strlines[i], 'g'));
+    }
+    let data = [];
+    for (let ln of this.data){
+      let newln = "";
+      for (c of ln){
+        if (c === '') newln += '\0';
+        else newln += c;
+      }
+      data.push(newln);
+    }
+    let loc;
+    data.forEach( (ln, ind) => {
+      if (loc || ((data.length - ind) < lines.length)) return;
+      let match;
+      while ( (match = lines[0].exec(ln)) !== null){
+        let xdisp = match.index;
+        let lnmatch = true;
+        for (let i=1; lines[i] !== undefined; i+= 1){
+          let imatch = lines[i].exec(data[ind+i].slice(xdisp));
+          if (!imatch || imatch.index !== 0){
+            lnmatch = false;
+            break;
+          }
+        }
+        if (lnmatch){
+          loc = [ind, xdisp];
+          break;
+        }
+      }
+    });
+    return (loc === undefined ? [] : loc);
+  }
+
   this.subsection = function(range){ // range is a coordinate pair
     if (range.length !== 2 || range[0].length !== 2) throw "not subsecting a coord pair";
     // Similarly excludes this.loc
diff --git a/tools/search.js b/tools/search.js
index 378f316..56137b8 100644
--- a/tools/search.js
+++ b/tools/search.js
@@ -32,7 +32,7 @@ function Search(){ // searchBlock should be a Space object.
       searchspace.comb( this.tiles[tile], comb.add );
     });
     for (let i=0; i<this.spaces.length; i++){
-      let coords = searchspace.search(this.spaces[i]);
+      let coords = searchspace.regex(this.spaces[i]);
       if (coords.length) this.calls[i](vec.add(coords, searchspace.loc), send, searchspace);
     }
   }
-- 
cgit