From 0e37448386d9bd6513074f72d4679790e9f9221c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michal=20Bra=C5=A1na?= <michal.brasna@socialbakers.com>
Date: Tue, 14 Feb 2023 03:07:19 +0100
Subject: [PATCH] Reduce bundle by throwing instead of using assert

---
 dist/difflib-browser.js |   4 +-
 lib/difflib.js          |  10 +-
 package-lock.json       | 799 +++-------------------------------------
 src/difflib.coffee      |   6 +-
 4 files changed, 62 insertions(+), 757 deletions(-)

diff --git a/dist/difflib-browser.js b/dist/difflib-browser.js
index eeaeca3..5ebf549 100644
--- a/dist/difflib-browser.js
+++ b/dist/difflib-browser.js
@@ -2,6 +2,6 @@
  * @fileoverview Text diff library ported from Python's difflib module. 
  *     https://github.com/qiao/difflib.js
  */
-var difflib=(function r(o,i,u){function s(e,t){if(!i[e]){if(!o[e]){var n="function"==typeof require&&require;if(!t&&n)return n(e,!0);if(l)return l(e,!0);throw(n=new Error("Cannot find module '"+e+"'")).code="MODULE_NOT_FOUND",n}n=i[e]={exports:{}},o[e][0].call(n.exports,function(t){return s(o[e][1][t]||t)},n,n.exports,r,o,i,u)}return i[e].exports}for(var l="function"==typeof require&&require,t=0;t<u.length;t++)s(u[t]);return s}({1:[function(a,t,b){!function(){var o,h,i,t,K,z,j,f,u,$,M,p,d,e,g,n,y,m,r,s,l,c=[].indexOf;({floor:g,max:y,min:m}=Math),h=a("heap"),d=a("assert"),f=function(t,e){return e?2*t/e:1},j=function(t,e){var n,r,o,i,u;for([o,i]=[t.length,e.length],n=r=0,u=m(o,i);0<=u?r<u:u<r;n=0<=u?++r:--r){if(t[n]<e[n])return-1;if(t[n]>e[n])return 1}return o-i},p=function(t,e){return Object.prototype.hasOwnProperty.call(t,e)},z=function(t){for(var e=0,n=t.length;e<n;e++)if(t[e])return!0;return!1},K=class{constructor(t,e="",n="",r=!0){this.isjunk=t,this.autojunk=r,this.a=this.b=null,this.setSeqs(e,n)}setSeqs(t,e){return this.setSeq1(t),this.setSeq2(e)}setSeq1(t){if(t!==this.a)return this.a=t,this.matchingBlocks=this.opcodes=null}setSeq2(t){if(t!==this.b)return this.b=t,this.matchingBlocks=this.opcodes=null,this.fullbcount=null,this._chainB()}_chainB(){var n,t,e,r,o,i,u,s,l,c,a=this.b;for(this.b2j=n=new Map,e=i=0,u=a.length;i<u;e=++i)t=a[e],n.has(t)||n.set(t,[]),n.get(t).push(e);return o=new Map,(r=this.isjunk)&&n.forEach(function(t,e){if(r(e))return o.set(e,!0),n.delete(e)}),c=new Map,s=a.length,this.autojunk&&200<=s&&(l=g(s/100)+1,n.forEach(function(t,e){if(t.length>l)return c.set(e,!0),n.delete(e)})),this.isbjunk=function(t){return o.has(t)},this.isbpopular=function(t){return c.has(t)}}findLongestMatch(t,e,n,r){var o,i,u,s,l,c,a,f,p,h,g,d,y,m,b,v,w,j;for([o,i,u,f]=[this.a,this.b,this.b2j,this.isbjunk],[s,l,c]=[t,n,0],h={},a=y=w=t,j=e;w<=j?y<j:j<y;a=w<=j?++y:--y){for(v={},g=[],b=0,m=(g=u.has(o[a])?u.get(o[a]):g).length;b<m;b++)if(!((p=g[b])<n)){if(r<=p)break;c<(d=v[p]=(h[p-1]||0)+1)&&([s,l,c]=[a-d+1,p-d+1,d])}h=v}for(;t<s&&n<l&&!f(i[l-1])&&o[s-1]===i[l-1];)[s,l,c]=[s-1,l-1,c+1];for(;s+c<e&&l+c<r&&!f(i[l+c])&&o[s+c]===i[l+c];)c++;for(;t<s&&n<l&&f(i[l-1])&&o[s-1]===i[l-1];)[s,l,c]=[s-1,l-1,c+1];for(;s+c<e&&l+c<r&&f(i[l+c])&&o[s+c]===i[l+c];)c++;return[s,l,c]}getMatchingBlocks(){var t,e,n,r,o,i,u,s,l,c,a,f,p,h,g,d,y,m,b,v,w;if(this.matchingBlocks)return this.matchingBlocks;for([g,d]=[this.a.length,this.b.length],v=[[0,g,0,d]],m=[];v.length;)[e,t,r,n]=v.pop(),[o,s,a]=w=this.findLongestMatch(e,t,r,n),a&&(m.push(w),e<o&&r<s&&v.push([e,o,r,s]),o+a<t&&s+a<n&&v.push([o+a,t,s+a,n]));for(m.sort(j),b=[],h=i=l=f=0,y=m.length;h<y;h++)[u,c,p]=m[h],i+f===u&&l+f===c?f+=p:(f&&b.push([i,l,f]),[i,l,f]=[u,c,p]);return f&&b.push([i,l,f]),b.push([g,d,0]),this.matchingBlocks=b}getOpcodes(){var t,e,n,r,o,i,u,s,l,c;if(this.opcodes)return this.opcodes;for(r=o=0,this.opcodes=e=[],i=0,u=(s=this.getMatchingBlocks()).length;i<u;i++)[t,n,l]=s[i],c="",r<t&&o<n?c="replace":r<t?c="delete":o<n&&(c="insert"),c&&e.push([c,r,t,o,n]),[r,o]=[t+l,n+l],l&&e.push(["equal",t,r,n,o]);return e}getGroupedOpcodes(t=3){var e,n,r,o,i,u,s,l,c,a,f=this.getOpcodes();for("equal"===(f=!f.length?[["equal",0,1,0,1]]:f)[0][0]&&([a,r,o,i,u]=f[0],f[0]=[a,y(r,o-t),o,y(i,u-t),u]),"equal"===f[f.length-1][0]&&([a,r,o,i,u]=f[f.length-1],f[f.length-1]=[a,r,m(o,r+t),i,m(u,i+t)]),c=t+t,n=[],e=[],s=0,l=f.length;s<l;s++)[a,r,o,i,u]=f[s],"equal"===a&&c<o-r&&(e.push([a,r,m(o,r+t),i,m(u,i+t)]),n.push(e),e=[],[r,i]=[y(r,o-t),y(i,u-t)]),e.push([a,r,o,i,u]);return!e.length||1===e.length&&"equal"===e[0][0]||n.push(e),n}ratio(){for(var t=0,e=this.getMatchingBlocks(),n=0,r=e.length;n<r;n++)t+=e[n][2];return f(t,this.a.length+this.b.length)}quickRatio(){var t,e,n,r,o,i,u,s,l,c,a;if(!this.fullbcount)for(this.fullbcount=n={},r=0,o=(c=this.b).length;r<o;r++)n[e=c[r]]=(n[e]||0)+1;for(n=this.fullbcount,t={},u=s=0,i=(a=this.a).length;u<i;u++)e=a[u],l=p(t,e)?t[e]:n[e]||0,t[e]=l-1,0<l&&s++;return f(s,this.a.length+this.b.length)}realQuickRatio(){var t,e;return[t,e]=[this.a.length,this.b.length],f(m(t,e),t+e)}},n=function(t,e,n=3,r=.6){var o,i,u,s,l,c,a,f,p;if(!(0<n))throw new Error(`n must be > 0: (${n})`);if(!(0<=r&&r<=1))throw new Error(`cutoff must be in [0.0, 1.0]: (${r})`);for(l=[],(a=new K).setSeq2(t),o=0,i=e.length;o<i;o++)p=e[o],a.setSeq1(p),a.realQuickRatio()>=r&&a.quickRatio()>=r&&a.ratio()>=r&&l.push([a.ratio(),p]);for(c=[],s=0,u=(l=h.nlargest(l,n,j)).length;s<u;s++)[f,p]=l[s],c.push(p);return c},u=function(t,e){var n,r;for([n,r]=[0,t.length];n<r&&t[n]===e;)n++;return n},o=class{constructor(t,e){this.linejunk=t,this.charjunk=e}compare(t,e){for(var n,r,o,i,u,s,l,c,a,f=[],p=new 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diff --git a/lib/difflib.js b/lib/difflib.js
index b0729b8..f01f043 100644
--- a/lib/difflib.js
+++ b/lib/difflib.js
@@ -24,7 +24,7 @@
   Class Differ:
       For producing human-readable deltas from sequences of lines of text.
   */
-  var Differ, Heap, IS_CHARACTER_JUNK, IS_LINE_JUNK, SequenceMatcher, _any, _arrayCmp, _calculateRatio, _countLeading, _formatRangeContext, _formatRangeUnified, _has, assert, contextDiff, floor, getCloseMatches, max, min, ndiff, restore, unifiedDiff,
+  var Differ, Heap, IS_CHARACTER_JUNK, IS_LINE_JUNK, SequenceMatcher, _any, _arrayCmp, _calculateRatio, _countLeading, _formatRangeContext, _formatRangeUnified, _has, contextDiff, floor, getCloseMatches, max, min, ndiff, restore, unifiedDiff,
     indexOf = [].indexOf;
 
   // Requires
@@ -32,8 +32,6 @@
 
   Heap = require('heap');
 
-  assert = require('assert');
-
   // Helper functions
   _calculateRatio = function(matches, length) {
     if (length) {
@@ -972,7 +970,7 @@
             g = this._dump(' ', a, alo, ahi);
             break;
           default:
-            throw new Error(`unknow tag (${tag})`);
+            throw new Error(`unknown tag (${tag})`);
         }
         for (m = 0, len1 = g.length; m < len1; m++) {
           line = g[m];
@@ -996,7 +994,9 @@
 
     _plainReplace(a, alo, ahi, b, blo, bhi) {
       var first, g, l, len, len1, line, lines, m, ref, second;
-      assert(alo < ahi && blo < bhi);
+      if (!(alo < ahi && blo < bhi)) {
+        throw new Error(`lows must be lower than highs: (${alo} < ${ahi}, ${blo} < ${bhi})`);
+      }
       // dump the shorter block first -- reduces the burden on short-term
       // memory if the blocks are of very different sizes
       if (bhi - blo < ahi - alo) {
diff --git a/package-lock.json b/package-lock.json
index aaaa407..ba510ba 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,14 +1,13 @@
 {
-    "name": "difflib",
-    "version": "0.2.4",
+    "name": "@ewoudenberg/difflib",
+    "version": "0.1.0",
     "lockfileVersion": 2,
     "requires": true,
     "packages": {
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-                "isbuffer": "~0.0.0",
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-            "integrity": "sha1-vsUccqgu5GTTNkNMfIdsP8vM538=",
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-            "integrity": "sha1-dEwSxy0ucr543eO5tc2E1iGRQTo=",
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-                    "integrity": "sha1-zd7AKZiwkb5CvxA1rjLknxy26mc=",
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-                        "foreach": "~2.0.1",
-                        "indexof": "~0.0.1",
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-                        "is-object": "~0.1.2",
-                        "object-keys": "~0.2.0"
-                    }
-                }
-            }
-        },
-        "levelup": {
-            "version": "0.18.6",
-            "resolved": "https://registry.npmjs.org/levelup/-/levelup-0.18.6.tgz",
-            "integrity": "sha1-5qAcsIlhbI7MApHCqb0/DETj5es=",
-            "requires": {
-                "bl": "~0.8.1",
-                "deferred-leveldown": "~0.2.0",
-                "errno": "~0.1.1",
-                "prr": "~0.0.0",
-                "readable-stream": "~1.0.26",
-                "semver": "~2.3.1",
-                "xtend": "~3.0.0"
-            },
-            "dependencies": {
-                "isarray": {
-                    "version": "0.0.1",
-                    "resolved": "https://registry.npmjs.org/isarray/-/isarray-0.0.1.tgz",
-                    "integrity": "sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8="
-                },
-                "prr": {
-                    "version": "0.0.0",
-                    "resolved": "https://registry.npmjs.org/prr/-/prr-0.0.0.tgz",
-                    "integrity": "sha1-GoS4WQgyVQFBGFPQCB7j+obikmo="
-                },
-                "readable-stream": {
-                    "version": "1.0.34",
-                    "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-1.0.34.tgz",
-                    "integrity": "sha1-Elgg40vIQtLyqq+v5MKRbuMsFXw=",
-                    "requires": {
-                        "core-util-is": "~1.0.0",
-                        "inherits": "~2.0.1",
-                        "isarray": "0.0.1",
-                        "string_decoder": "~0.10.x"
-                    }
-                },
-                "string_decoder": {
-                    "version": "0.10.31",
-                    "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-0.10.31.tgz",
-                    "integrity": "sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ="
-                },
-                "xtend": {
-                    "version": "3.0.0",
-                    "resolved": "https://registry.npmjs.org/xtend/-/xtend-3.0.0.tgz",
-                    "integrity": "sha1-XM50B7r2Qsunvs2laBEcST9ZZlo="
-                }
-            }
-        },
         "locate-path": {
             "version": "6.0.0",
             "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-6.0.0.tgz",
@@ -4901,11 +4228,6 @@
                 "is-unicode-supported": "^0.1.0"
             }
         },
-        "ltgt": {
-            "version": "2.2.1",
-            "resolved": "https://registry.npmjs.org/ltgt/-/ltgt-2.2.1.tgz",
-            "integrity": "sha1-81ypHEk/e3PaDgdJUwTxezH4fuU="
-        },
         "md5.js": {
             "version": "1.3.5",
             "resolved": "https://registry.npmjs.org/md5.js/-/md5.js-1.3.5.tgz",
@@ -5087,15 +4409,11 @@
                 "object-keys": "^1.1.1"
             }
         },
-        "octal": {
-            "version": "1.0.0",
-            "resolved": "https://registry.npmjs.org/octal/-/octal-1.0.0.tgz",
-            "integrity": "sha1-Y+cWKmjvvrniE1iNWOmJ0eXEUws="
-        },
         "once": {
             "version": "1.4.0",
             "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
             "integrity": "sha1-WDsap3WWHUsROsF9nFC6753Xa9E=",
+            "dev": true,
             "requires": {
                 "wrappy": "1"
             }
@@ -5210,12 +4528,8 @@
         "process-nextick-args": {
             "version": "2.0.1",
             "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.1.tgz",
-            "integrity": "sha512-3ouUOpQhtgrbOa17J7+uxOTpITYWaGP7/AhoR3+A+/1e9skrzelGi/dXzEYyvbxubEF6Wn2ypscTKiKJFFn1ag=="
-        },
-        "prr": {
-            "version": "1.0.1",
-            "resolved": "https://registry.npmjs.org/prr/-/prr-1.0.1.tgz",
-            "integrity": "sha1-0/wRS6BplaRexok/SEzrHXj19HY="
+            "integrity": "sha512-3ouUOpQhtgrbOa17J7+uxOTpITYWaGP7/AhoR3+A+/1e9skrzelGi/dXzEYyvbxubEF6Wn2ypscTKiKJFFn1ag==",
+            "dev": true
         },
         "public-encrypt": {
             "version": "4.0.3",
@@ -5289,6 +4603,7 @@
             "version": "2.3.7",
             "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.7.tgz",
             "integrity": "sha512-Ebho8K4jIbHAxnuxi7o42OrZgF/ZTNcsZj6nRKyUmkhLFq8CHItp/fy6hQZuZmP/n3yZ9VBUbp4zz/mX8hmYPw==",
+            "dev": true,
             "requires": {
                 "core-util-is": "~1.0.0",
                 "inherits": "~2.0.3",
@@ -5302,12 +4617,14 @@
                 "safe-buffer": {
                     "version": "5.1.2",
                     "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
-                    "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g=="
+                    "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==",
+                    "dev": true
                 },
                 "string_decoder": {
                     "version": "1.1.1",
                     "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
                     "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
+                    "dev": true,
                     "requires": {
                         "safe-buffer": "~5.1.0"
                     }
@@ -5361,11 +4678,6 @@
             "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==",
             "dev": true
         },
-        "semver": {
-            "version": "2.3.2",
-            "resolved": "https://registry.npmjs.org/semver/-/semver-2.3.2.tgz",
-            "integrity": "sha1-uYSPJdbPNjMwc+ye+IVtQvEjPlI="
-        },
         "serialize-javascript": {
             "version": "6.0.0",
             "resolved": "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-6.0.0.tgz",
@@ -5554,11 +4866,6 @@
                 "safe-buffer": "~5.2.0"
             }
         },
-        "string-range": {
-            "version": "1.2.2",
-            "resolved": "https://registry.npmjs.org/string-range/-/string-range-1.2.2.tgz",
-            "integrity": "sha1-qJPtNH5yKZvIO++78qaSqNI51d0="
-        },
         "string-width": {
             "version": "4.2.3",
             "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",
@@ -5675,12 +4982,8 @@
         "typedarray": {
             "version": "0.0.6",
             "resolved": "https://registry.npmjs.org/typedarray/-/typedarray-0.0.6.tgz",
-            "integrity": "sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c="
-        },
-        "typedarray-to-buffer": {
-            "version": "1.0.4",
-            "resolved": "https://registry.npmjs.org/typedarray-to-buffer/-/typedarray-to-buffer-1.0.4.tgz",
-            "integrity": "sha1-m7i6DoQfs/TPH+fCRenz+opf6Zw="
+            "integrity": "sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=",
+            "dev": true
         },
         "uglify-js": {
             "version": "3.14.4",
@@ -5754,7 +5057,8 @@
         "util-deprecate": {
             "version": "1.0.2",
             "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
-            "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8="
+            "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=",
+            "dev": true
         },
         "vm-browserify": {
             "version": "1.1.2",
@@ -5818,7 +5122,8 @@
         "wrappy": {
             "version": "1.0.2",
             "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
-            "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
+            "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
+            "dev": true
         },
         "xtend": {
             "version": "4.0.2",
diff --git a/src/difflib.coffee b/src/difflib.coffee
index 890b9c1..a16c295 100644
--- a/src/difflib.coffee
+++ b/src/difflib.coffee
@@ -26,7 +26,6 @@ Class Differ:
 # Requires
 {floor, max, min} = Math
 Heap = require('heap')
-assert = require('assert')
 
 # Helper functions
 _calculateRatio = (matches, length) ->
@@ -862,7 +861,7 @@ class Differ
         when 'equal'
           g = @_dump(' ', a, alo, ahi)
         else
-          throw new Error("unknow tag (#{tag})")
+          throw new Error("unknown tag (#{tag})")
       lines.push(line) for line in g
     lines
 
@@ -873,7 +872,8 @@ class Differ
     ("#{tag} #{x[i]}" for i in [lo...hi])
 
   _plainReplace: (a, alo, ahi, b, blo, bhi) ->
-    assert(alo < ahi and blo < bhi)
+    unless alo < ahi and blo < bhi
+      throw new Error("lows must be lower than highs: (#{alo} < #{ahi}, #{blo} < #{bhi})")
     # dump the shorter block first -- reduces the burden on short-term
     # memory if the blocks are of very different sizes
     if bhi - blo < ahi - alo