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: Code Tokenizer and Parser/Parser_Test.js
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- Committer: Gustav Hartvigsson
- Date: 2013-04-04 18:24:21 UTC
- Revision ID: gustav.hartvigsson@gmail.com-20130404182421-e8l692tsqroc1u05
Readded the file that Adam Ringhede removed.
- files added:
- Code Viewer Alt/.DS_Store
- files removed:
- CodeViewer/Lindex.css
- codehighlighterimpl/css
- codehighlighterimpl/js
- files renamed:
- DuggaSys/changePassword/pageframe.php => DuggaSys/changePassword/pageframe.html.php
- DuggaSys/changePassword/password.php => DuggaSys/changePassword/password.html.php
- DuggaSys/quizSystem/course/courses.php => DuggaSys/quizSystem/course/courses.html.php
- DuggaSys/quizSystem/data/displayData.php => DuggaSys/quizSystem/data/displayData.html.php
- DuggaSys/quizSystem/login/login.php => DuggaSys/quizSystem/login/login.html.php
- DuggaSys/quizSystem/pageframe.php => DuggaSys/quizSystem/pageframe.html.php
- DuggaSys/quizSystem/quiz/addEditQuiz.php => DuggaSys/quizSystem/quiz/addEditQuiz.html.php
- DuggaSys/quizSystem/quiz/editVariants.php => DuggaSys/quizSystem/quiz/editVariants.html.php
- DuggaSys/quizSystem/quiz/listDataObjects.php => DuggaSys/quizSystem/quiz/listDataObjects.html.php
- DuggaSys/quizSystem/quiz/listQuizzes.php => DuggaSys/quizSystem/quiz/listQuizzes.html.php
- DuggaSys/quizSystem/quizChecking/listQuizAnswers.php => DuggaSys/quizSystem/quizChecking/listQuizAnswers.html.php
- DuggaSys/quizSystem/quizChecking/quizAnswerDetails.php => DuggaSys/quizSystem/quizChecking/quizAnswerDetails.html.php
- DuggaSys/quizSystem/quizChecking/selectCourse.php => DuggaSys/quizSystem/quizChecking/selectCourse.html.php
- DuggaSys/quizSystem/quizChecking/selectQuiz.php => DuggaSys/quizSystem/quizChecking/selectQuiz.html.php
- DuggaSys/quizSystem/registerStudents/parsingResult.php => DuggaSys/quizSystem/registerStudents/parsingResult.html.php
- DuggaSys/quizSystem/registerStudents/print.php => DuggaSys/quizSystem/registerStudents/print.html.php
- DuggaSys/quizSystem/search/search.php => DuggaSys/quizSystem/search/search.html.php
- DuggaSys/quizSystem/students/listStudents.php => DuggaSys/quizSystem/students/listStudents.html.php
- js/httpAjax.js => WebGL and Benchmarking/httpAjax.js
- js/webgl-helpers.js => WebGL and Benchmarking/webgl-helpers.js
- files modified:
- Code Tokenizer and Parser/Parser_Test.css
added
removed
Code Tokenizer and Parser/Parser_Test.js
1
// Array to hold the tokens
2
var tokens = [];
3
1
/*
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2
* Token class and storage definition
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3
*/
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function token(kind, val, fromchar, tochar, row) {
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this.kind = kind;
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this.val = val;
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this.from = fromchar;
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9
this.to = tochar;
11
10
this.row = row;
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}
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}
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// Array to hold the tokens
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var tokens = [];
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/*
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* Store token in tokens array
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* Creates a new token object using the constructor
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*/
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function makeToken(kind, val, from, to, rowno) {
18
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newtoken = new token(kind, val, from, to, rowno);
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tokens.push(newtoken);
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}
24
21
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/*
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* Writes error from tokenizer
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*/
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function error(str, val, row) {
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alert("Tokenizer Error: " + str + val + " at row " + row);
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}
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/*
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* Tokenize function
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* Tokenizer partly based on ideas from the very clever tokenizer written by Douglas Cockford
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* The tokenizer is passed a string, and a string of prefix and suffix terminators
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*/
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*/
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function tokenize(instring, inprefix, insuffix) {
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// index of the start of the token.
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var from;
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break;
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}
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}
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makeToken('name', str, from, i, row);
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maketoken('name', str, from, i, row);
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// Number token
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} else if (c >= '0' && c <= '9') {
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str = c;
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i++;
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for(;;) {
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c = instring.charAt(i);
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if(c < '0' || c > '9') {
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break;
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}
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i++;
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str += c;
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}
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if(c == '.') {
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i++;
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str += c;
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for(;;){
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c=instring.charAt(i);
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if(c < '0' || c > '9'){
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break;
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}
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i++;
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str += c;
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}
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}
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if(c == 'e' || c =='E') {
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i++;
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str += c;
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c=instring.charAt(i);
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if(c == '-' || c == '+') {
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i++;
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str += c;
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c=instring.charAt(i);
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} else if (c >= '0' && c <= '9') {
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str = c;
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i++;
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for(;;) {
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c = instring.charAt(i);
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if(c < '0' || c > '9') {
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break;
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}
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i++;
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str += c;
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}
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if(c == '.') {
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i++;
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str += c;
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for(;;){
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c=instring.charAt(i);
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if(c < '0' || c > '9'){
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break;
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}
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i++;
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str += c;
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}
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}
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if(c == 'e' || c =='E') {
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i++;
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str += c;
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c=instring.charAt(i);
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if(c == '-' || c == '+') {
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i++;
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str += c;
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c=instring.charAt(i);
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}
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if(c < '0' || c > '9') {
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error('Bad Exponent in Number: ',str,row);
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}
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do {
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i++;
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str += c;
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c = instring.charAt(i);
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} while(c >= '0' && c <= '9');
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}
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if(c >= 'a' && c <= 'z') {
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str += c;
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i++;
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error('Bad Number: ',str,row);
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}
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n =+ str;
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if(isFinite(n)) {
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maketoken('number', n, from, i, row);
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} else {
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error('Bad Number: ', str, row);
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133
}
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if(c < '0' || c > '9') {
108
error('Bad Exponent in Number: ',str,row);
109
}
110
do {
111
i++;
112
str += c;
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c = instring.charAt(i);
114
} while(c >= '0' && c <= '9');
115
}
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if(c >= 'a' && c <= 'z') {
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str += c;
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i++;
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error('Bad Number: ',str,row);
120
}
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n =+ str;
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if(isFinite(n)) {
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makeToken('number', n, from, i, row);
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} else {
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error('Bad Number: ', str, row);
126
}
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// String .. handles c style breaking codes
128
} else if (c == '\'' || c == '"') {
129
str = '';
130
q = c;
131
i++;
132
for(;;) {
133
c = instring.charAt(i);
134
if(c < ' ') {
135
if((c == '\n') || (c == '\r') || (c == '')) {
136
// Add row if this white space is a row terminator
137
row++;
138
} else {
139
error('Unterminated String: ', str, row);
140
}
141
}
142
if (c == q) {
143
break;
144
}
145
if(c == '\\') {
146
i++;
147
if(i >= length) {
148
error('Unterminated String: ', str, row);
149
}
150
c = instring.charAt(i);
151
if(c == 'b') {
152
c = '\b';
153
break;
154
}
155
if(c == 'f') {
156
c = '\f';
157
break;
158
}
159
if(c == 'n') {
160
c = '\n';
161
break;
162
}
163
if(c == 'r') {
164
c = '\r';
165
break;
166
}
167
if(c == 't') {
168
c = '\t';
169
break;
170
}
171
if(c == 'u') {
172
if(i >= length) {
173
error('Unterminated String: ', str, row);
174
}
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c = parseInt(this.substr(i + 1, 4), 16);
176
if(!isFinite(c) || c < 0) {
177
error('Unterminated String: ', str, row);
178
}
179
c = String.fromCharCode(c);
180
i+=4;
181
break;
182
}
183
}
184
str += c;
185
i++;
186
}
187
i++;
188
makeToken('string', str, from, i, row);
189
c = instring.charAt(i);
190
// Comment of // type ... does not cover block comments
191
} else if (c == '/' && instring.charAt(i+1) == '/') {
192
i++;
193
for(;;) {
194
c=instring.charAt(i);
195
if(c == '\n' || c == '\r' || c == '') {
196
row++;
197
break;
198
}
199
i++;
200
}
134
// String .. handles c style breaking codes
135
} else if (c == '\'' || c == '"') {
136
str = '';
137
q = c;
138
i++;
139
for(;;) {
140
c = instring.charAt(i);
141
if(c < ' ') {
142
if((c == '\n') || (c == '\r') || (c == '')) {
143
// Add row if this white space is a row terminator
144
row++;
145
} else {
146
error('Unterminated String: ', str, row);
147
}
148
}
149
if (c == q) {
150
break;
151
}
152
if(c == '\\') {
153
i++;
154
if(i >= length) {
155
error('Unterminated String: ', str, row);
156
}
157
c = instring.charAt(i);
158
if(c == 'b') {
159
c = '\b';
160
break;
161
}
162
if(c == 'f') {
163
c = '\f';
164
break;
165
}
166
if(c == 'n') {
167
c = '\n';
168
break;
169
}
170
if(c == 'r') {
171
c = '\r';
172
break;
173
}
174
if(c == 't') {
175
c = '\t';
176
break;
177
}
178
if(c == 'u') {
179
if(i >= length) {
180
error('Unterminated String: ', str, row);
181
}
182
c = parseInt(this.substr(i + 1, 4), 16);
183
if(!isFinite(c) || c < 0) {
184
error('Unterminated String: ', str, row);
185
}
186
c = String.fromCharCode(c);
187
i+=4;
188
break;
189
}
190
}
191
str += c;
192
i++;
193
}
194
i++;
195
maketoken('string', str, from, i, row);
196
c = instring.charAt(i);
197
// Comment of // type ... does not cover block comments
198
} else if (c == '/' && instring.charAt(i+1) == '/') {
199
i++;
200
for(;;) {
201
c=instring.charAt(i);
202
if(c == '\n' || c == '\r' || c == '') {
203
row++;
204
break;
205
}
206
i++;
207
}
201
208
// Block comment of /* type
202
} else if (c == '/' && instring.charAt(i+1) == '*') {
203
i++;
204
for(;;) {
205
c=instring.charAt(i);
206
if((c == '*' && instring.charAt(i+1) == '/') || (i == length)) {
207
i+=2;
208
c=instring.charAt(i);
209
break;
210
}
211
if(c == '\n' || c == '\r' || c == '') {
212
row++;
213
}
214
i++;
215
}
216
// Multi-character Operators
217
} else if (inprefix.indexOf(c) >= 0) {
218
str = c;
219
i++;
220
while(true) {
221
c=instring.charAt(i);
222
if(i >= length || insuffix.indexOf(c) < 0) {
223
break;
224
}
225
str += c;
226
i++;
227
}
228
// Single-character Operators
229
makeToken('operator', str, from, i, row);
230
} else {
231
i++;
232
makeToken('operator', c, from, i, row);
233
c = instring.charAt(i);
234
}
235
}
236
}
237
238
function newButton() {
239
var funclist;
240
var oplist;
241
oplist = document.getElementById('infobox');
242
string_tokenize = "foo // Lederhosen\nsin'foo'(200.0*r)+(-21.4/1.51e-6)+/*Plodder*/(Feeeb+400)*ln(3000);\ncos(200.1-atan2(41.0,51.0));\nHello+85-4*2.6-1.51e-6;";
243
tokenize(string_tokenize, "<>+-&","=>&:");
244
// Iterate over token objects and print kind of each token and token type in window
245
printout = document.getElementById('infobox');
246
for(i = 0;i < tokens.length;i++) {
247
printout.innerHTML += tokens[i].kind + " " + tokens[i].val + " (" + tokens[i].from + "-" + tokens[i].to + ") at: " + tokens[i].row + "<br>";
248
}
249
}
209
} else if (c == '/' && instring.charAt(i+1) == '*') {
210
i++;
211
for(;;) {
212
c=instring.charAt(i);
213
if((c == '*' && instring.charAt(i+1) == '/') || (i == length)) {
214
i+=2;
215
c=instring.charAt(i);
216
break;
217
}
218
if(c == '\n' || c == '\r' || c == '') {
219
row++;
220
}
221
i++;
222
}
223
// Multi-character Operators
224
} else if (inprefix.indexOf(c) >= 0) {
225
str = c;
226
i++;
227
while(true) {
228
c=instring.charAt(i);
229
if(i >= length || insuffix.indexOf(c) < 0) {
230
break;
231
}
232
str += c;
233
i++;
234
}
235
// Single-character Operators
236
maketoken('operator', str, from, i, row);
237
} else {
238
i++;
239
maketoken('operator', c, from, i, row);
240
c = instring.charAt(i);
241
}
242
}
243
}
244
function newButton()
245
{
246
var funclist;
247
var oplist;
248
oplist = document.getElementById('infobox');
249
string_tokenize = "foo // Lederhosen\nsin'foo'(200.0*r)+(-21.4/1.51e-6)+/*Plodder*/(Feeeb+400)*ln(3000);\ncos(200.1-atan2(41.0,51.0));\nHello+85-4*2.6-1.51e-6;";
250
tokenize(string_tokenize, "<>+-&","=>&:");
251
// Iterate over token objects and print kind of each token and token type in window
252
printout = document.getElementById('infobox');
253
for(i = 0;i < tokens.length;i++) {
254
printout.innerHTML += tokens[i].kind + " " + tokens[i].val + " (" + tokens[i].from + "-" + tokens[i].to + ") at: " + tokens[i].row + "<br>";
255
}
256
}
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