cmark

My personal build of CMark ✏️

Commit: c0c33f83326927d515a973aa7afdd26bb194e0c8
Parent: aabd412250999ecd9c1033966ddfe8a66e26972f
Author: John MacFarlane <jgm@berkeley.edu>
Date: Tue, 7 Oct 2014 22:02:21 -0700

stmd.js: Fixed entityToChar, adding fromCodePoint polyfill.

Closes #151.

Diffstat

2 files changed, 94 insertions, 4 deletions

Status	File Name	N° Changes	Insertions	Deletions
Modified	LICENSE	25	25	0
Modified	js/stmd.js	73	69	4

diff --git a/LICENSE b/LICENSE
@@ -28,3 +28,28 @@ DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+-----
+
+The polyfill for String.fromCodePoint included in stmd.js is
+Copyright Mathias Bynens <http://mathiasbynens.be/>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+

diff --git a/js/stmd.js b/js/stmd.js
@@ -2223,6 +2223,71 @@
     var reMain = /^(?:[_*`\n]+|[\[\]\\!<&*_]|(?: *[^\n `\[\]\\!<&*_]+)+|[ \n]+)/m;
 
     // UTILITY FUNCTIONS
+    // polyfill for fromCodePoint:
+    // https://github.com/mathiasbynens/String.fromCodePoint
+    /*! http://mths.be/fromcodepoint v0.2.1 by @mathias */
+    if (!String.fromCodePoint) {
+        (function() {
+            var defineProperty = (function() {
+                // IE 8 only supports `Object.defineProperty` on DOM elements
+                try {
+                    var object = {};
+                    var $defineProperty = Object.defineProperty;
+                    var result = $defineProperty(object, object, object) && $defineProperty;
+                } catch(error) {}
+                return result;
+            }());
+            var stringFromCharCode = String.fromCharCode;
+            var floor = Math.floor;
+            var fromCodePoint = function(_) {
+                var MAX_SIZE = 0x4000;
+                var codeUnits = [];
+                var highSurrogate;
+                var lowSurrogate;
+                var index = -1;
+                var length = arguments.length;
+                if (!length) {
+                    return '';
+                }
+                var result = '';
+                while (++index < length) {
+                    var codePoint = Number(arguments[index]);
+                    if (
+                        !isFinite(codePoint) || // `NaN`, `+Infinity`, or `-Infinity`
+                            codePoint < 0 || // not a valid Unicode code point
+                            codePoint > 0x10FFFF || // not a valid Unicode code point
+                            floor(codePoint) != codePoint // not an integer
+                    ) {
+                        return String.fromCharCode(0xFFFD);
+                    }
+                    if (codePoint <= 0xFFFF) { // BMP code point
+                        codeUnits.push(codePoint);
+                    } else { // Astral code point; split in surrogate halves
+                        // http://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
+                        codePoint -= 0x10000;
+                        highSurrogate = (codePoint >> 10) + 0xD800;
+                        lowSurrogate = (codePoint % 0x400) + 0xDC00;
+                        codeUnits.push(highSurrogate, lowSurrogate);
+                    }
+                    if (index + 1 == length || codeUnits.length > MAX_SIZE) {
+                        result += stringFromCharCode.apply(null, codeUnits);
+                        codeUnits.length = 0;
+                    }
+                }
+                return result;
+            };
+            if (defineProperty) {
+                defineProperty(String, 'fromCodePoint', {
+                    'value': fromCodePoint,
+                    'configurable': true,
+                    'writable': true
+                });
+            } else {
+                String.fromCodePoint = fromCodePoint;
+            }
+        }());
+    }
+
     var entityToChar = function(m) {
         var isNumeric = /^&#/.test(m);
         var isHex = /^&#[Xx]/.test(m);
@@ -2234,7 +2299,7 @@
             } else {
                 num = parseInt(m.slice(2,-1), 10);
             }
-            uchar = String.fromCharCode(num);
+            uchar = String.fromCodePoint(num);
         } else {
             uchar = entities[m.slice(1,-1)];
         }
@@ -2428,7 +2493,7 @@
         if (cc_after === -1) {
             char_after = '\n';
         } else {
-            char_after = String.fromCharCode(cc_after);
+            char_after = String.fromCodePoint(cc_after);
         }
 
         var can_open = numdelims > 0 && numdelims <= 3 && !(/\s/.test(char_after));
@@ -2460,7 +2525,7 @@
         var startpos = this.pos;
         var c ;
         var first_close = 0;
-        c = String.fromCharCode(cc);
+        c = String.fromCodePoint(cc);
 
         var numdelims;
         var numclosedelims;
@@ -2876,7 +2941,7 @@
         }
         if (!res) {
             this.pos += 1;
-            inlines.push({t: 'Str', c: String.fromCharCode(c)});
+            inlines.push({t: 'Str', c: String.fromCodePoint(c)});
         }
 
         if (memoize) {