/[suikacvs]/markup/html/scripting-parser/parser.html
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Diff of /markup/html/scripting-parser/parser.html

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revision 1.2 by wakaba, Sun Apr 20 07:48:00 2008 UTC revision 1.3 by wakaba, Sun Apr 20 10:02:43 2008 UTC
# Line 40  Line 40 
40    } // Parser    } // Parser
41    
42    Parser.prototype.getNextToken = function () {    Parser.prototype.getNextToken = function () {
43        var p = this;
44      var i = this.in;      var i = this.in;
45      if (this.parseMode == 'script') {      if (this.parseMode == 'script') {
46        var token;        var token;
47          if (p.insertionPoint <= 0) {
48            return {type: 'abort'};
49          }
50        i.s = i.s.replace (/^([\s\S]+?)<\/[Ss][Cc][Rr][Ii][Pp][Tt]>/,        i.s = i.s.replace (/^([\s\S]+?)<\/[Ss][Cc][Rr][Ii][Pp][Tt]>/,
51        function (s, t) {        function (s, t) {
52            if (0 < p.insertionPoint && p.insertionPoint < t.length) {
53              token = {type: 'char', value: t.substring (0, p.insertionPoint)};
54              var ip = p.insertionPoint;
55              p.insertionPoint = 0;
56              return t.substring (ip, t.length) +
57                  s.substring (s.length - 9, s.length);
58            }
59          token = {type: 'char', value: t};          token = {type: 'char', value: t};
60            p.insertionPoint -= s.length;
61          return '<' + '/script>';          return '<' + '/script>';
62        });        });
63        if (token) return token;        if (token) return token;
64        i.s = i.s.replace (/^<\/[Ss][Cc][Rr][Ii][Pp][Tt]>/, function () {        i.s = i.s.replace (/^<\/[Ss][Cc][Rr][Ii][Pp][Tt]>/, function (s) {
65            if (s.length < p.insertionPoint) {
66              token = {type: 'abort'};
67              return s;
68            }
69          token = {type: 'end-tag', value: 'script'};          token = {type: 'end-tag', value: 'script'};
70            p.insertionPoint -= s.length;
71          return '';          return '';
72        });        });
73        if (token) return token;        if (token) return token;
# Line 59  Line 76 
76    
77      var token;      var token;
78      i.s = i.s.replace (/^<\/([^>]+)>/, function (s, e) {      i.s = i.s.replace (/^<\/([^>]+)>/, function (s, e) {
79          if (p.insertionPoint < s.length) {
80            token = {type: 'abort'};
81            return s;
82          }
83        token = {type: 'end-tag', value: e.toLowerCase ()};        token = {type: 'end-tag', value: e.toLowerCase ()};
84          p.insertionPoint -= s.length;
85        return '';        return '';
86      });      });
87      if (token) return token;      if (token) return token;
88      i.s = i.s.replace (/^<([^>]+)>/, function (s, e) {      i.s = i.s.replace (/^<([^>]+)>/, function (s, e) {
89          if (p.insertionPoint < s.length) {
90            token = {type: 'abort'};
91            return s;
92          }
93        token = {type: 'start-tag', value: e.toLowerCase ()};        token = {type: 'start-tag', value: e.toLowerCase ()};
94          p.insertionPoint -= s.length;
95        return '';        return '';
96      });      });
97      if (token) return token;      if (token) return token;
98        if (p.insertionPoint <= 0) {
99          return {type: 'abort'};
100        }
101      i.s = i.s.replace (/^[^<]+/, function (s) {      i.s = i.s.replace (/^[^<]+/, function (s) {
102          if (p.insertionPoint < s.length) {
103            token = {type: 'char', value: s.substring (0, p.insertionPoint)};
104            var ip = p.insertionPoint;
105            p.insertionPoint = 0;
106            return s.substring (ip, s.length);
107          }
108        token = {type: 'char', value: s};        token = {type: 'char', value: s};
109          p.insertionPoint -= s.length;
110        return '';        return '';
111      });      });
112      if (token) return token;      if (token) return token;
113      i.s = i.s.replace (/^[\s\S]/, function (s) {      i.s = i.s.replace (/^[\s\S]/, function (s) {
114        token = {type: 'char', value: s};        token = {type: 'char', value: s};
115          p.insertionPoint -= s.length;
116        return '';        return '';
117      });      });
118      if (token) return token;      if (token) return token;
# Line 109  Line 147 
147                el.manakaiAppendText (token.value);                el.manakaiAppendText (token.value);
148    
149              // 4.2. Until it returns a token that is not a character token, or              // 4.2. Until it returns a token that is not a character token, or
150              // TODO: 4.3. Until it stops tokenising.              // until it stops tokenising.
151              } else if (token.type == 'eof' ||              } else if (token.type == 'eof' ||
152                         (token.type == 'end-tag' && token.value == 'script')) {                         (token.type == 'end-tag' && token.value == 'script') ||
153                           token.type == 'abort') {
154                // 6. Switched back to the PCDATA state.                // 6. Switched back to the PCDATA state.
155                this.parseMode = 'pcdata';                this.parseMode = 'pcdata';
156    
# Line 138  Line 177 
177            }            }
178    
179            // 9.1. Let the old insertion point have the same value as the ...            // 9.1. Let the old insertion point have the same value as the ...
180              var oldInsertionPoint = this.insertionPoint;
181            // 9.2. Let the insertion point be just before the next input ...            // 9.2. Let the insertion point be just before the next input ...
182              this.setInsertionPoint (0);
183    
184            // 10. Append the new element to the current node.            // 10. Append the new element to the current node.
185            this.openElements[this.openElements.length - 1].appendChild (el);            this.openElements[this.openElements.length - 1].appendChild (el);
186    
187            // 11. Let the insertion point have the value of the old ...            // 11. Let the insertion point have the value of the old ...
188              this.setInsertionPoint (oldInsertionPoint);
189    
190            // 12. If there is a script that will execute as soon as ...            // 12. If there is a script that will execute as soon as ...
191                        
# Line 161  Line 202 
202          } else {          } else {
203            log ('parse error: unmatched end tag: ' + token.value);            log ('parse error: unmatched end tag: ' + token.value);
204          }          }
205          } else if (token.type == 'char') {
206            this.openElements[this.openElements.length - 1].manakaiAppendText
207                (token.value);
208        } else if (token.type == 'eof') {        } else if (token.type == 'eof') {
209          break;          break;
210          } else if (token.type == 'abort') {
211            log ('parse: abort');
212            return;
213        }        }
214      }      }
215    
216      log ('stop parsing');      log ('stop parsing');
217    } // parse    } // parse
218    
219      Parser.prototype.setInsertionPoint = function (ip) {
220        if (ip == undefined || ip == null || isNaN (ip)) {
221          log ('insertion point: set to undefined');
222          this.insertionPoint = undefined;
223        } else {
224          log ('insertion point: set to ' + ip +
225               ' (before "' + this.in.s.substring (0, 10) + '")');
226          this.insertionPoint = ip;
227        }
228      }; // setInsertionPoint
229    
230    function JSDocument (p) {    function JSDocument (p) {
231      this.childNodes = [];      this.childNodes = [];
232      this._parser = p;      this._parser = p;
# Line 188  Line 246 
246      if (e.localName == 'script') {      if (e.localName == 'script') {
247        log ('start running a script');        log ('start running a script');
248    
249        var doc = this.ownerDocument;        var doc = this.ownerDocument || this;
250        var p = doc._parser;        var p = doc._parser;
251    
252        // 1. Script type        // 1. Script type
# Line 300  Line 358 
358    }; // manakaiAppendText    }; // manakaiAppendText
359    
360    JSDocument.prototype.write = function () {    JSDocument.prototype.write = function () {
361        var p = this._parser;
362    
363      // 1. If the insertion point is undefined, the open() method must be ...      // 1. If the insertion point is undefined, the open() method must be ...
364      //      if (p.insertionPoint == NaN || p.insertionPoint == undefined) {
365          // TODO: open ()
366        }
367    
368      // 2. ... inserted into the input stream just before the insertion point.      // 2. ... inserted into the input stream just before the insertion point.
369      log ('document.write: insert "' + Array.join (arguments, '') + '"');      var s = Array.join (arguments, '');
370        log ('document.write: insert "' + s + '"' +
371             ' before "' + p.in.s.substring (p.insertionPoint, p.insertionPoint + 10) + '"');
372        p.in.s = p.in.s.substring (0, p.insertionPoint) + s
373            + p.in.s.substring (p.insertionPoint, p.in.s.length);
374        p.insertionPoint += s.length;
375    
376      // 3. If there is a script that will execute as soon as the parser resumes      // 3. If there is a script that will execute as soon as the parser resumes
377      // TODO      // TODO
378    
379      // 4. Process the characters that were inserted, ...      // 4. Process the characters that were inserted, ...
380        p.parse ();
381    
382      // 5. Return      // 5. Return
383      log ('document.write: return');      log ('document.write: return');
# Line 353  Line 421 
421  &lt;head>&lt;/head>&lt;body>  &lt;head>&lt;/head>&lt;body>
422  &lt;p>  &lt;p>
423  &lt;script>  &lt;script>
424  document.write ('aaaaaaa&lt;/p>\n&lt;script>\ndocument.write("cccccc")\n&lt;/', 'script>\nbbbbbb');  document.write ('aaaaaaa&lt;/p>&lt;script>document.write("cccccc");&lt;/', 'script>bbbbbb');
425  &lt;/script>  &lt;/script>
426  &lt;p>  &lt;p>
427  </textarea>  </textarea>
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